Intelligent Internet connected vehicle - Internet connected function and application (CFA) standard development roadmap

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intelligent internet connected vehicle internet

 

Intelligent Internet car - Networking functions and applications (CFA) Standard setting roadmap

 

Intelligent Internet car - Networking functions and applications (CFA) Standard setting roadmap

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Intelligent networked vehicle is the development and application direction of automotive technology at present and for a long time in the future , It is also the focus of the future development and competition of the automobile industry all over the world . The Chinese government attaches great importance to the development of intelligent connected vehicle technology and related industrial clusters , from 2015 Since, a series of important documents have been issued to make strategic planning for the development of intelligent networked vehicles .2015 year ,《 Made in China 2025》 It is proposed to master the intelligence of automobile 、 Requirements of informatization core technology ;2016 year ,《 Medium and long term development plan of automobile industry 》 China will further raise the intelligent networked vehicle to a national strategic height , Intelligent networked vehicles are required to develop synchronously with the world , Accelerate the construction of legal standard system for intelligent networked vehicles ;2017 year ,《 Development plan of new generation artificial intelligence 》 It is clearly proposed to form China's independent automatic driving platform technology system and product assembly capability ;2018 year ,《 Guidelines for the construction of national Internet of vehicles industry standard system ( Intelligent Internet car )》 It is proposed to establish a standard system of intelligent networked vehicles in stages to adapt to China's national conditions and in line with international standards ;2019 year ,《 Outline of building a powerful transportation country 》 It is proposed to strengthen the research and development of intelligent networked vehicles , Form an independent, controllable and complete industrial chain ;2020 year ,《 Smart car innovation and development strategy 》 It is proposed to build a systematic and perfect intelligent vehicle regulation and standard system .

To implement relevant national strategic deployment , Give play to the technical guidance and normative role of standards , Accelerate the development of China's intelligent networked vehicle technology and industry , Ministry of industry and information technology 、 The National Standardization Management Committee organized the national automobile Standardization Technical Committee to carry out the construction of intelligent networked automobile standard system , formation 《 Guidelines for the construction of national Internet of vehicles industry standard system ( Intelligent Internet car )》 Proposed in 2020 In, an intelligent networked vehicle standard system that can support driving assistance and low-level automatic driving was initially established , Promote the comprehensive popularization of intelligent products and the gradual application of networking technology ; To 2025 In, the system formed an intelligent networked vehicle standard system that can support high-level automatic driving , Formulate intelligent networked vehicle standards covering networked collaborative decision-making technology , Promote intelligent networked vehicles “ Intelligent + Networking ” Integrated development . As our country has put C-V2X Clear as the national strategic path , Car networking is considered to be the key area in which China is most likely to lead in the development wave of global intelligent Internet connected vehicles . The car's “ Intelligent + Networking ” Development , Networking functions and applications (CFA) The formulation of relevant standards has become one of the key tasks in the construction of standard system .

Planning for Science 、 The system carries out the function and application of intelligent car network (CFA) Standard research and formulation , Promote the development of automotive Internet technology and product application , Improve vehicle safety and comfort , Automotive Standardization Research Institute of China Automotive Technology Research Center Co., Ltd 2019 In, it launched the function and application of intelligent car network (CFA) Standard setting Roadmap , This paper combs the development status of the functions and application technologies of intelligent Internet connected vehicles at home and abroad 、 Progress of standards and regulations, etc , Combined with the in-depth study of traffic accidents in China (CIDAS) data , And industry networking technology application research, etc , From the technical route 、 Means of communication 、 Usage of Internet connection information 、 Cost factors 、 Analyze the application status of network technology from the current situation of the industry ; meanwhile , Considering the development speed of communication technology , And synthesize relevant standards to formulate important influencing factors , This paper puts forward the function and application of intelligent car network (CFA) Standard setting roadmap .

Abstract

Intelligent networked vehicle is the inevitable trend of the future development of automotive technology . The Chinese government attaches great importance to the development of intelligent connected vehicle technology and related industries ,《 Made in China 2025》《 Equipment manufacturing industry standardization and quality improvement plan 》《 Medium and long term development plan of automobile industry 》《 Smart car innovation and development strategy 》 And a series of important documents to clarify the national strategic position of intelligent networked vehicles .

The research work of this report draws lessons from the... Issued by the intelligent networked automobile sub committee of the Automobile Standard Committee 《 Advanced driving AIDS (ADAS) Standard setting roadmap Research Report 》 In depth study on traffic accidents in China (CIDAS) Analysis results of data , Combined with expert questionnaire and Industry Research , Comprehensively consider the existing intelligent networked vehicle standards and the basic supporting role of the standards 、 Actual needs of the industry , Propose a road map proposal for the formulation of intelligent network vehicle network function and application standards .

The general formulation principle of this research report is :1) Guided by the national development strategy ;2) Based on industry technology research ;3) Based on the basic principle of standardization .

The main research contents are as follows :

One 、 Analyze the development strategy of automobile network technology at home and abroad 、 Application status and progress of standards and regulations .

Europe, America, Japan and other major auto industry countries and regions since the last century 80 Since the s, relevant strategies to support intelligent networked vehicles have been released one after another ; The United Nations 、 International organizations such as the international organization for standardization and the American Society of Automotive Engineers 、 Regional standardization organizations are also conducting research on standards related to intelligent networked vehicles 、 Formulation and coordination , However, the relevant standards for the application of automotive network technology are basically in the blank stage . China passes 《 Made in China 2025》 And a series of important documents to promote the development of intelligent networked automobile related industries ; meanwhile , The intelligent networked automobile sub Technical Committee of the National Automotive Standardization Technical Committee established the networked function and application standard working group , The discipline is responsible for the research and formulation of standards related to automotive network technology .

Two 、 Define the scope and application scenario of automotive network technology

By studying the terms and definitions of automotive Internet technology , Analyze the functional elements of automobile network technology , Clarify the function and application technology category of intelligent car network , Determine the application scenario of networking technology .

Facing the future development direction of automobile network technology , Fully consider the application scenarios of automotive networking technology , The test method and function evaluation method combining simulation test and actual road test are proposed .

3、 ... and 、 Analyze the technical application status of various networking function scenarios

The results of the questionnaire survey and Analysis on the application and standardization needs of automotive Internet technology are taken as the main reference for the preparation of this research report , According to certain evaluation methods and priority principles, determine the time sequence of standardization of typical application scenarios of networking technology ; Combined with questionnaire analysis , Sort out the recommended national standard suggestions and automobile industry standard suggestions , As the work guidance of the working group on networking function and application standards .

meanwhile , In depth study of traffic accidents in China (CIDAS) database , Analyze the characteristics and types of passenger vehicle road traffic accidents in China , Combined with the information released by the intelligent network automobile sub committee of the Automobile Standard Committee 《 Advanced driving AIDS (ADAS) Standard setting roadmap 》 In depth study on traffic accidents in China (CIDAS) The analysis results of the data verify the scientificity of the standardization start priority of the application scenario of networking technology 、 rationality .

Four 、 Determine the function and application standard of intelligent network vehicle network, and formulate the road map

This research report is prepared for the industry “ Questionnaire survey on the application and standardization needs of automotive Internet technology ”, Due to the limited space of the questionnaire , Only widely representative application scenarios were investigated . This report classifies and analyzes the research scenarios , Take the analysis results as the basis for the formulation of this research report . This research report takes the Research scenario as an example , The standardization time of networking technology application scenarios is proposed .

Basic general 、 Safety effect 、 Comprehensively evaluate the networking function and application standard from three aspects of application status, and formulate the priority order . Basic general projects mainly come from 《 Guidelines for the construction of national Internet of vehicles industry standard system ( Intelligent Internet car )》 Basic general standards in planning ; The safety effect and application status shall be evaluated according to the analysis results of this report . Determine the criteria and develop a roadmap according to the priority order . High priority projects are recommended at 2020 Launched in ; Higher priority recommendations 2021 to 2022 Start pre research or formulation in ; Projects with medium priority are recommended on 2023 to 2024 Start pre research or formulation in ; Low priority projects are recommended at 2025 Start pre research in and after 、 Formulate or follow up according to the development needs of the industry .

meanwhile , This report combines the current situation of industrial development and industrial standards , Systematically sort out the typical application scenarios of networking technology , Give suggestions on the formulation of recommended national standards and industrial standards . It should be noted that , This report does not give suggestions on the priority of industry standard development , Relevant formulation of industry standards can be carried out in due time according to technical development . This report is formulated according to the current industrial development status , In the future, it will be dynamically adjusted according to the industrial development .

1C-V2X Introduction to technology development and application

1.1C-V2X Introduction to technology development and application

Intelligent Internet connected vehicle is an automobile 、 Information 、 Typical application of deep integration of multi-disciplinary and multi technology such as communication , It is a global innovation hotspot , It is also the focus of the future development of global automobile .

The two main lines of the technical logic of intelligent networked vehicles are “ Information perception ” and “ Decision control ”, The core of its development is information perception by the system 、 Decision warning and intelligent control , Gradually replace the driver's driving task , And finally perform all driving tasks completely independently . according to 《 Guidelines for the construction of national Internet of vehicles industry standard system ( Intelligent Internet car )》, Intelligent networked vehicles can be divided into two levels: intelligent and networked ; Intelligent networked vehicle is realized through two technical paths of intelligence and networking “ Information perception ” and “ Decision control ” function .

With V2X Technology based vehicle networking is an important support to realize automatic driving , It can reduce road traffic accidents 、 Improve traffic efficiency 、 Achieve energy conservation and emission reduction , In recent years, it has shown a global trend of accelerated development . Automobile networking has a long industrial chain 、 Interdisciplinary 、 Cross industry and other characteristics , It is not only related to cellular communication and special short-range communication technology , It also involves vehicle communication protocol 、 Communication interface and other technologies , Need to strengthen the car 、 signal communication 、 Intelligent Transportation 、 Cooperation in traffic management and other fields .

Thanks to the advanced advantages in the field of communication technology and the huge scale of the automobile market , China's Internet of vehicles industry has entered the market in recent years “ The fast lane ”, Technological innovation and application are booming , The scale of the industry is expanding , Vehicle communication chip 、 Positioning chip 、 Communication modules are opening up a new situation of localization .

1.1.1 Overview of development strategy

(1) The United States

Driven by the government , American intelligent networking started early 、 Fast development .2010 year , Proposed by the U.S. Department of transportation 《ITS Strategic plan 2010-2014》, It is the first time to propose vigorous development from the national strategic level V2X Technology Automotive Applications .2014 year , Release again 《ITS Strategic plan 2015-2019》, For America's future 5 The development direction in the field of intelligent transportation was clarified in , The intelligence of the car 、 Networking has become the core of the strategic plan , It has become a key technical means to solve the problems of transportation system in the United States .

2016 year , Department of transportation and national highway traffic safety administration (NHTSA) Joint launch 《 Federal auto driving policy guide 》( Autopilot system 1.0) It mainly includes performance guidance for automatic driving vehicle. 、 Strategies for the unification of relevant state policies 、NHTSA Current management means 、 Innovation of future regulatory measures . The most important content is the guidance of the performance of the automatic driving vehicle. , Its core is requiring car manufacturers to conduct a comprehensive safety assessment of the automatic driving vehicle .2017-2018 year , The U.S. Department of transportation doesn't release it 《 Autopilot system 2.0: Security outlook 》 and 《 Autopilot 3.0: Prepare for future traffic 》, Gradually relax the restrictions on the innovation and development of intelligent networked vehicles ,2020 year , The United States Department of transportation issued the latest guidance document of the US government for automatic driving vehicles 《 Ensuring the leading position of the United States in autopilot Technology : Autopilot 4.0》.

in addition ,2019 year 12 month , The federal communications commission (FCC) Unanimously voted to allow some of the previously dedicated vehicles 5.9GHz Frequency band security spectrum , by C-V2X On the distribution of 20MHz.

(2) The European

The development of European Intelligent networked vehicles originated from ITS, And gradually through the intellectualization of vehicles 、 Networking to realize the coordinated development of vehicle and transportation system , Europe's ITS The development and application are closely related to the construction process of EU transportation integration .

2015 year , European road traffic research advisory committee (ERTRAC) Release the technology roadmap of intelligent networked vehicles , To strengthen top-level planning , Promote concerted efforts by all countries . With the continuous development of technology industry ,ERTRAC Update technical route multiple times ,2019 year 3 month ,ERTRAC Release the latest version of the roadmap , Further strengthen networking in 、 Planning requirements for vehicle road coordination .

2018 year , Issued by the European Commission 《 Road to automated travel : EU future travel strategy 》, Make it clear to 2020 Driverless on the highway in , Realize low-speed unmanned driving in the central area of the city ; To 2030 Popularize highly automatic driving in . meanwhile , To 2022 year , All new vehicles in the EU have communication function .

(3) Japan

Japan passed ITS Develop synergy and promote the progress of intelligent networked automobile industry , And will ITS、 Intelligent networked vehicle into the national key development strategy .2013 year , The Japanese Cabinet Office officially announced the new IT strategic 《 World leader IT Declaration of national creation 》, Under this framework , Japan Road Traffic Commission 、 Japan's information and communication strategy committee jointly put forward the commercialization schedule and plan of intelligent networked vehicles 《ITS2014-2030 Technology development roadmap 》. The release of the road map marks Japan's official entry into automotive intelligence 、 Development stage of networking .2014 year , For advancement 《 World leader IT Declaration of national creation 》 Proposed in “ Achieve the safest in the world , The most environmentally friendly , The most economical road traffic Society ” The goal of , Formulated by the Cabinet Office of Japan 《 Strategic innovation and creation of automatic driving system research and development plan 》(SIP_adus).

2017 year , Issued by the Cabinet Office of Japan 《2017 Officials and people ITS Vision and road map 》, And put forward the propulsion schedule of automatic driving ,2020 It will be realized on the expressway around L3 Class a autopilot ,L2 Trucks above level 1 travel in formation , And for distribution services in a specific area L4 Class a autopilot .2019 year ,SIP_adus Get into 2.0 Stage , The focus will be on autonomous driving and the future intelligent society (Society5.0) Collaboration of .2020 Tokyo Olympic Games 、 During the Paralympic Games , The Japanese government plans to launch taxis with automatic driving function 、 Bus operation service , Maintain Japan's leading position in the field of intelligent networked vehicles .

(4) China

Characteristics of multi industry integration of intelligent networked vehicles , It is decided that it must be passed through multiple departments 、 Multi industry coordination can promote industrial innovation and development . China has formed a cross sectoral coordination mechanism , Overall industrial development ; meanwhile , Ministry of industry 、 The National Development and Reform Commission 、 Ministry of Science and Technology 、 Ministry of Communications 、 The Ministry of public security and other relevant ministries and commissions have also issued strategic plans , We will vigorously support the development of intelligent networked vehicles .

2015 year 5 month ,《 Made in China 2025》 It is proposed that , To 2025 year , Master the overall technology and key technologies of automatic driving .2017 year 4 month ,《 Medium and long term development plan of automobile industry 》 It is pointed out in 2025 In, it entered the world's advanced ranks .2017 year 7 month ,《 Development plan of new generation artificial intelligence 》 It is planned to form China's independent automatic driving platform technology system and product assembly capacity .2018 year 10 month , Issued by the ministry of industry and information technology 《 Car networking ( Intelligent Internet car ) Direct communication use 5905-5925MHz Band management regulations 》.2018 year 12 month , Issued by the ministry of industry and information technology 《 Car networking ( Intelligent Internet car ) Industrial Development Action Plan 》, Comprehensively guide the development of China's intelligent networked vehicles . The national development and Reform Commission 2020 Released in 《 Smart car innovation and development strategy 》, Put forward the strategic system of building an advanced and complete intelligent vehicle network facility system .

1.1.2 Summary of the current situation of international standards and regulations

(1) The United States

2016 year 12 month , Issued by the U.S. Department of transportation 《 Federal Motor vehicle safety standards — The first 150 Number 》(FMVSSNo.150) The proposal , Request the installation of light vehicles sold in the United States V2V Communication equipment , To ensure that basic safety information can be sent and received between vehicles , And select DSRC( Dedicated short distance communication system 5.85-5.925GHz Frequency band ) As a unified standard for vehicle communication .2016 year 12 month , Michigan took the lead in enacting four bills , Make it the first intelligent connected vehicle law issued by the state government in the United States . By 2018 end of the year , The United States already includes Michigan 、 California et al 30 Multiple states and the District of Columbia ( United States Federal Territory ) Laws related to intelligent connected vehicles have been promulgated .

The American intelligent networked vehicle standard is mainly formulated by the American Society of automotive engineers (SAE) To take the lead , In terms of Internet connected vehicles , Equipped with V2X Communications Steering Committee , At present, it has been aimed at V2I signal communication 、 Issue corresponding technical standards for information security, etc .

(2) The European

The formulation of relevant policies and regulations of EU intelligent networked vehicles basically revolves around the definition 、 classification 、 technological development 、 Automobile manufacturing, various safety regulations and road traffic rules .2016 Since then , The Swedish 、 Finland 、 Germany 、 Netherlands 、 Britain and other countries have started the process of revising laws and regulations related to intelligent connected vehicles .

In terms of networking regulations , To protect C-ITS Communication of services 、 Information security and Sustainability , The European Commission ITSDirective2010/40/EU As a legal framework ,2018 Relevant authorization act passed in . Specific include : Formulate relevant laws and regulations to ensure C-ITS Communication and information security of services ; Ensure implementation C-ITS General data protection regulations involved in the field ( Personal privacy and data protection ); Formulate relevant regulations on C-ITS Evaluate the consistency of services , Guarantee C-ITS Sustainability of services , And consider the expansion of service content in the future .

(3) Japan

2016 Since then , Japan is gradually building a legal and regulatory environment related to intelligent connected vehicles , Proceed with revision 《 Road traffic law 》 and 《 Road transport vehicle law 》, And carry out discussion on the compensation mechanism for accidents of intelligent networked vehicles , It is proposed that the 2020 Realize the legislation of intelligent connected vehicles before .2016 year 5 month , The Japanese police agency issued 《 Guide for automated driving vehicle testing 》, Make it clear that the driver should sit in the driving position , Both the test vehicle and the driver shall comply with and comply with the current laws and regulations .2018 year 3 month , Japan released 《 Self driving related system preparation outline 》, Just L3 The responsibility for class I automatic driving accidents is clearly stipulated .《 Self driving related system preparation outline 》 It defines L3 Class a autopilot ( There is driver riding status and conditional automatic driving ) Responsibility in case of accident , In principle, it shall be borne by the vehicle owner , That is, intelligent networked vehicles are treated equally with ordinary vehicles , The responsibility of the enterprise is limited to the obvious defects of the automobile system ; The compensation for the accident caused by hacker intrusion and the accident damage caused by stolen vehicles shall be subject to the government's relief system , If the vehicle owner updates the system, etc , Take security measures .2018 year 9 month , Ministry of land and transportation of Japan L3、L4 Passenger car of level automatic driving system 、 Truck and bus release 《 Guide for safety technology of autopilot 》. The guide lists ten safety conditions for intelligent networked vehicles . Clear carrying L3、L4 The safety technical conditions must be followed by the first-class intelligent network vehicle Institute , bring L3、L4 Relevant enterprises of the first-class intelligent networked automobile industry chain shall specify the safety indicators to be achieved by the products , Promote the further development of intelligent networked vehicles by automobile manufacturers .

(4)3GPP

3GPP Organization was on 2015 Based on LTE-V2X Standardization work of .2015 year 3 month ,3GPPSA Formal project initiation LTE-V2X Demand research , And in 2015 year 12 Complete the research report in June 3GPPTR22.885.

2015 year 9 month ,3GPPSA Formal project initiation LTE-V2X Standardization requirements work ,2016 year 6 Month to complete LTE-V2X Requirements Standard 3GPPTS22.185.2015 year 6 month ,3GPPRAN start-up “ be based on LTE Of V2X”(LTE-basedV2X) Research projects of , And in 2016 year 6 The research work was completed in June .2015 year 12 month ,3GPPRAN start-up LTE-V2X Of the 1 Work items , Mainly based on LTEPC5 Interface V2V(PC5-basedV2V) Standardization work of , On 2016 year 9 End of the month .2016 year 6 month ,3GPPRAN Start the second 2 individual LTE-V2X Work items , Mainly based on LTEUu Interface V2X, And others 1 Standardization work left over from stage , Has been in 2017 year 3 Month to complete , thus 3GPPLTERel-14 Of V2X Standardization work has been basically completed . Internet of vehicles requirements for future automatic driving stage ,3GPP Has been in 2016 The year begins 5GV2X Standardization work of .2016 year 6 month ,3GPPSA Formal project initiation 5G-V2X Demand research , And in 2017 year 3 Complete the research report in June 3GPPTR22.886.

2017 year 3 month ,3GPPSA Formal project initiation 5G-V2X Standardization of requirements ,2017 year 6 The month is officially completed 5G-V2X Requirements Standard 3GPPTS22.186.2017 year 3 month ,3GPPRAN start-up “ be based on Rel-14LTEV2X The enhancement of (Rel-15)” Standardization work of , On 2018 year 6 Month to complete .3GPPRAN On 2017 year 3 In January, a program for 5GV2X Evaluation method research project of application example , On 2018 year 6 Month to complete .2018 year 6 month ,3GPPRAN start-up “ be based on 5G New gap (NR) Of V2X(Rel-16)” The research work of , Plans to 2020 year 3 Monthly freeze .

(5) China

At the level of laws and regulations ,2017 Since, China has successively issued relevant policies and measures , Planning the future development of intelligent networked vehicles .2018 year 5 month , Ministry of industry 、 The Ministry of Public Security 、 The three ministries and commissions of the Ministry of communications jointly released the national level 《 Specification for road test management of intelligent Internet connected vehicles ( On a trial basis )》.

At the standard level , China has started the research and formulation of relevant standards for intelligent networked vehicles ,2017 year 12 month , Ministry of industry and information technology 、 Jointly issued by the National Standardization Administration Committee 《 Guidelines for the construction of national Internet of vehicles industry standard system ( Intelligent Internet car )》.2018 year 4 month , The National Automotive Standardization Technical Committee established the intelligent networked automotive sub Technical Committee , And in 2018 year 12 In June, a working group on networking function and application standards was established , Specializing in the formulation of standards related to automotive network technology .2018 year 11 month , To further strengthen standard collaboration , Automobile Standardization Committee 、ITS Standardization Committee 、 Communication Standardization Committee / Signed by China Communications Standard Association and traffic management standard committee 《 About strengthening automobile 、 Intelligent Transportation 、 Communication and traffic management C-V2X Framework agreement for standard cooperation 》, Push C-V2X Research on new generation information and communication technology and its application in automobile and transportation industry 、 Formulation and Implementation .

Besides , China actively participates in the Committee on road vehicles (ISO/TC22) And other international standards . among , China undertakes automatic driving test scenario (SC33/WG9) Work of Convener , Organize international experts to develop international standards for test scenarios ; Chinese experts GRVA Vice presidents and FRAV Co chairs .

1.1.3 Introduction to the current situation of industrial development

Jointly released by China intelligent network automotive industry innovation alliance 《C-V2X White paper on industrialization path and timetable 》 Pointed out that :2019-2021 Years for C-V2X Industrialization deployment and introduction period . At this stage ,C-V2X Communication equipment 、 Safety guarantee 、 Data platform 、 The test certification can be basically met C-V2X Initial deployment demand of industrialization .2022-2025 Years for C-V2X Industrialization deployment and development period , According to the preliminary demonstration area 、 Construction experience of pilot area , Form a commercial operation mode that can be popularized , Carry out promotion and deployment in typical cities and roads across the country , And carry out application .2025 Years later C-V2X Period of rapid industrial development , Step by step C-V2X Nationwide coverage , Build a multi-level data platform nationwide , Cross industry data interconnection , Provide diversified travel services .

Current Europe 、 beautiful 、 Japan has formed a tripartite situation in the field of intelligent networked vehicle technology . The United States to AI Chip enterprises as the core to carry out the layout of intelligent networked vehicles , It aims to control the on-board core chip architecture of intelligent networked vehicles , Take the lead in the era of Artificial Intelligence Computing , It has obvious advantages in the intelligent networked automobile industry chain ; Europe has the world's leading automotive electronic parts suppliers and vehicle enterprises , Its automatic driving technology based on on on-board sensors is relatively advanced ; Japan has a good transportation infrastructure , The technical level of intelligent networked vehicles is also advancing steadily .

(1) Information and communication technology

China's advantage lies in the rapid development of information and communication industry and the world's first automobile production and sales market demand , These have laid a good foundation for the development of China's intelligent networked vehicles , But in the vehicle specification level, high-precision sensors 、 Computing chip 、 operating system 、 There are still some gaps in the core algorithms of artificial intelligence .

Abroad DSRC And C-V2X Coexistence of vehicle networking communication schemes . among , Mainly used in the United States DSRC Technical solution , The EU also adopts DSRC And C-V2X Two technical schemes , Maintain technical neutrality in standard setting schemes . It has been used in early Japan DSRC technology ,20 century 90 It will be at the end of the s 5770-5850MHz Divided into DSRC channel , At present, Japan ITS Industry standards and industrial organizations ITS-forum Declare technology neutrality , stay 5770-5850MHz At the same time LTE-V2X As an alternative technology . China advocates the adoption of C-V2X Communication mechanism .

(2) Roadside infrastructure

For intelligent transportation system in the United States (ITS) A standard communication protocol is established for data transmission between electronic devices NTCIP, Covers requests from point to point / Response protocol to the complete protocol cluster of complex object-oriented technology . The EU proposes a networked collaborative autopilot based on digital infrastructure (InfrastructureSupportlevelsforAutomatedDriving,ISAD), Form an automatic driving planning scheme based on the support of digital road infrastructure , Reflect the networked collaborative decision-making function , Become the foundation of future automated transportation system . Open communication interface protocol for road traffic control system initiated by Federal Highway Institute of Germany (OCIT) The interface protocol standard of field equipment in traffic signal control system is defined . Japan has fully popularized DSRC Communication technology ETC equipment , And actively strengthen . Domestic, including traffic signal controller 、 Evidence collection for illegal acts 、 Facilities such as traffic flow information collection and release are formulated, including functional and technical requirements 、 Inspection method 、 National or industrial standards including relevant communication protocols . With V2X Evolution and development of Technology , The new application scenario puts forward new application requirements for roadside traffic management facilities , Derived the information interaction towards intelligent networked vehicles 、 Service and other application requirements .

1.2 Background introduction of standard system construction

2018 year 11 month , National Automobile Standardization Technical Committee 、 National Intelligent Transportation System Standardization Technical Committee 、 National Communication Standardization Technical Committee 、 The National Technical Committee for road traffic management standardization jointly signed 《 About strengthening automobile 、 Intelligent Transportation 、 Communication and traffic management C-V2X Framework agreement for standard cooperation 》, according to “ Friendly cooperation 、 Specialization 、 Complementary advantages 、 To advance in concert ” The general principle of , promote C-V2X Research on new generation information and communication technology and its application in automobile and transportation industry 、 Formulation and Implementation . among , The standards related to the functions and applications of automobile network connection shall be formulated and centralized by the national automobile Standardization Technical Committee .

Networking function and application standard work composition are based on 2018 year 12 month , It is one of the permanent professional standards working groups of the intelligent network automobile sub committee of the National Automobile Standards Committee , Mainly responsible for the formulation of standards related to the functions and applications of automobile Internet connection . The working group is composed of automobile enterprises 、 Parts supplier 、 Internet enterprises 、 Testing agency 、 Communication industry 、 The transportation industry is composed of more than 100 member units . At present, five standard projects have been carried out : Recommended national standards 《 Road vehicles — Networked vehicle (ExVe) Methodology section 1 part : General information 》《 Road vehicles — Networked vehicle (ExVe) Methodology section 2 part : Design Guidelines 》 Recommended national standard plan No. has been issued , Recommended national standards 《 be based on LTE-V2X Technical requirements for vehicle information interaction system of direct connection communication 》 It has entered the online publicity stage of the National Standard Committee , Automobile industry standard 《 Technical requirements and test methods of on-board special wireless short-range transmission system 》 The project has entered the publicity stage , Automobile industry standard 《 Technical requirements and test methods for on-board wired high-speed media transmission 》 A drafting group has been established ; Carry out three standardization requirements research projects :《 Research on classification and standardization requirements of intelligent networked vehicle message set 》 The research results have been submitted to other working groups as an important reference for standard formulation ,《 Analysis of communication requirements of intelligent networked vehicles 》《 Research on the standardization requirements of information interaction function between intelligent networked vehicle and mobile terminal 》 The research report has been formed and officially released ,《 Research on standardization requirements of automobile safety early warning scenarios based on Internet technology 》 In the process of research .

2019 year 7 month , The intelligent networked automobile sub committee of the Automobile Standard Committee held the second meeting of the networked function and application standard working group in Xi'an , The meeting solicited industry experts' opinions and suggestions on the work related to the road map of Internet connection function and application standards , Expert opinions and suggestions were collected 400 More than one , After the meeting, the Secretariat sorted out the relevant opinions and suggestions and sent them to all member units , Industry experts suggest that the formulation of the road map for the standardization of networking functions and applications should be completed as soon as possible . According to the work plan , Secretariat 2019 year 8 The preparation of the Research Report on the roadmap for the formulation of networking function and application standards began in June .

Give full consideration to industrial technology development and industrial demand , Provide strong support for the formulation of the road map , National Automotive Standardization Technical Committee, intelligent networked automotive sub Technical Committee (SAC/TC114/SC34) In conjunction with China intelligent network automotive industry innovation alliance (CAICV) Industry oriented joint development “ Questionnaire survey on the application and standardization needs of automotive Internet technology ”, Effective feedback was collected 42 Share . According to the business nature of the feedback enterprise , Including vehicle enterprises 22 home 、 Parts supplier 6 home 、 Information and communication company 12 home 、 Third party testing agency 1 home 、 Colleges and universities 1 home , The structure diagram is shown in the figure 1 Shown ; It is divided according to the asset nature of the feedback enterprise , Including Chinese Enterprises 25 home 、 foreign enterprise 10 home 、 Sino foreign joint venture 7 home , The structure diagram is shown in the figure 2 Shown . It can comprehensively and objectively reflect the application status of automotive Internet technology of relevant units in the current Chinese market .

image-20210709152257744

2 Networking function and application technology

2.1 Definition and technical connotation of networking function and application

The core connotation of automobile networking is through modern information communication and network technology , Realize people - vehicle - road - Interconnection between clouds , Real time online information interaction 、 Information fusion and collaborative perception , Is to enhance the safety of autonomous vehicles , Promote traffic optimization , Links and bridges to improve the driving experience .

Network connection function and application technology refers to the vehicle using communication technology to realize communication with the outside world ( vehicle 、 infrastructure 、 Pedestrians 、 Network, etc ) Information exchange between , This function is not limited to the vehicle itself , Intersection traffic support is also involved 、 Violation warning 、 Accident rescue and other functions and services , It also includes on-board communication device 、 Communication protocol and corresponding interface , Including but not limited to V2X technology .

V2X Technology refers to the communication between on-board unit and other equipment , Including but not limited to communication between on-board units (V2V), Communication between onboard unit and infrastructure (V2I), Communication between on-board unit and pedestrian equipment (V2P), Communication between on-board unit and network (V2N).

Information interaction means that the vehicle with network connection function can be detected on the basis of its own sensor , Information exchange with external nodes through on-board communication device , Provide more comprehensive environmental information for vehicles , It can be regarded as a special environment sensing sensor ; In the future, networked collaborative decision-making and control can be carried out on the basis of information interaction , Achieve vehicle safety 、 Orderly 、 Efficient 、 Energy saving operation .

2.2 Classification of networking functions and technologies

Networking technology contains many functional applications , There are various classification methods of Internet connection technology , The principle is that the networking function covers all aspects , At the same time, it does not exceed its technical scope , In order to make the classification of networking technology clear 、 clear 、 comprehensive 、 accuracy , The following five classification methods are given :

1. Classified according to the usage of Internet connection information

This classification divides the networking functions into : Alert only / remind 、 It can be used as auxiliary input information for control decision-making 、 There are three kinds of main input information that can be used as control decision-making .

2. Classified according to the applicable area of network connection function

This classification divides the networking functions into : Core urban function 、 Main urban functions 、 Expressway function and its combined regional function 、 And other regional functions .

3. Classification by communication technology

This classification divides the networking functions into : Networking function based on direct communication technology 、 Networking function based on cellular communication technology 、 Based on Bluetooth /WIFI/RFID And other communication technologies .

4. Classify in a way that is relevant to driving safety

In this way, the networking functions are divided into : Driving safety related application scenarios 、 Non driving safety related application scenarios . Non driving safety related application scenarios can be further divided into : Driving efficiency related application scenarios 、 Application scenarios related to information services . At the second meeting of the network function and application standard working group of the intelligent network automobile sub standard committee of the Automobile Standard Committee , A questionnaire survey was conducted among industry experts on the way to carry out the road map of standardization of Internet connection functions and applications , According to the research results , Industry experts suggest that the networking technology should be classified in this way , meanwhile , This classification is in line with the standard setting principle of giving priority to safety . This report uses this method to classify the application scenarios of networking technology .

5. Classification according to information function and control function

This classification method divides the networking technology into information function and control function , Information functions can be further divided into driving related and non driving related categories , Non driving related categories mainly include entertainment systems unrelated to driving tasks 、 Internet information and other information service scenario applications ; Driving related categories include decision-making and early warning . The control functions are divided into two types of scene applications: auxiliary control and cooperative control for automatic driving .

2.3 Networking function application scenario definition

The following application scenario definitions are a brief description of the application scenarios involved in this research report , It is not a standardized definition of the scenario .

1. Red light warning

When the vehicle does not follow the instructions of the traffic lights or there is a risk of not following the provisions or instructions of the traffic lights, a warning message will be issued .

2. The traffic ahead is a reminder

When there is a traffic jam ahead of the vehicle , The main vehicle receives the congestion information and reminds the driver .

3. Vehicle out of control warning

Monitor the running status of vehicles around the vehicle in real time , And send a warning message to the driver when it is recognized that the surrounding vehicles are out of control .

4. Road hazard warning

When the vehicle travels to a section of road with potential dangerous conditions , And give warning information when there is an accident risk .

5. Warning of abnormal vehicles

When the main vehicle judges that there are abnormal vehicles around according to the received message , When the vehicle affects the normal driving of the vehicle, an abnormal vehicle reminder message is sent .

6. Signs inside the car

When the vehicle receives the road data and traffic sign information sent from the infrastructure , The sign in the vehicle shall prompt the driver with corresponding information .

7. Over the horizon information assistance

Provide vehicles with information that cannot be obtained by single vehicle sensing , Assist the vehicle to drive safely .

8. Special vehicle identification / Remind when

There are ambulances around the vehicle 、 The police car 、 fire engine 、 School bus and other special vehicles , Prompt the driver .

9. Secondary accident warning

Broadcast the accident information of the vehicle to the surrounding vehicles when the vehicle has an accident , Prompt the surrounding vehicles to drive safely .

10. Reverse overtaking warning

When the car uses the reverse lane to overtake , And there is a risk of collision with vehicles in the reverse lane , The driver shall be warned .

11. Intersection anti-collision

When the vehicle runs to the intersection and there is a risk of collision with lateral vehicles , Effective measures shall be taken to avoid or mitigate collision .

12. Ramp merge / Export assistance

Prompt the driver to change lanes in advance when exiting the ramp , When merging into the ramp, the speed and vehicle position of the main road will be transmitted to the vehicle, and the driver will be warned .

13. Overtaking aid

In the process of overtaking, obtain the information of the vehicles in front of the lane and the surrounding vehicles in real time , Obtain the safe overtaking distance and obtain the safe overtaking scheme to assist the vehicle to complete overtaking .

14. Safe traffic guidance at intersection

When there are no traffic lights at the intersection , Remind the vehicle that there are running vehicles on the transverse road through vehicle vehicle communication .

15. Bad weather warning

When bad weather occurs in front of the main vehicle , The main vehicle receives the warning information of bad weather in advance and gives early warning to the driver .

16. Green wave speed guide

When the vehicle reaches an intersection with traffic lights , Economy at proper speed 、 comfortable 、 Pass the intersection safely , To improve the traffic efficiency of intersections .

17. Car near field payment

As a payment terminal, it pays for the consumed goods .

18. The tides / Dynamic lane driving

The main vehicle uses the received infrastructure dynamic lane information to push , Reasonably plan the driving path , To improve traffic efficiency .

19. Traffic information and route planning

With the help of network or cloud server , Combined with big data technology , Provide real-time for vehicles 、 accuracy 、 Efficient route guidance .

20. Vehicle remote diagnosis , Maintenance Tips

Realize remote fault diagnosis of the vehicle through network technology or send maintenance prompt information to the driver .

21. Vehicle theft / Damage service alert

When the vehicle is stolen or damaged , In vehicle sensor trigger response , Pass relevant information through V2N Upload to cloud platform , And inform the owner .

22. Differential data service

With the help of V2N Technology to realize positioning service based on differential data , In order to improve the positioning accuracy .

23. Electronic car key

With smart mobile devices , Used to unlock or lock the vehicle .2

4. Charging station destination guidance

Provide charging station location information for electric vehicles .

25. Empty parking space guidance

When the vehicle arrives at the entrance of the parking lot , The vehicle can find the spare parking space independently and drive the vehicle into the spare parking space .

26. Roundabout driving assistance

When the vehicle is driving around the island , Safety during auxiliary roundabout driving .

27. Collision warning for vulnerable traffic participants

Through real-time monitoring of the position and motion status of pedestrians and non motor vehicles around , Calculate and predict possible collisions , And give early warning to the driver .

28. Driving in formation

Through the information interaction between vehicles in the queue , Realize the vehicle in the established order 、 Vehicle spacing and changing formation to achieve safe and efficient driving .

3 Analysis on the road map of networking function and application standardization technology

The technical roadmap of networking function and application standards reflects the formulation plan of networking function and application related standards and the implementation plan of relevant promotion measures at present and in the future . For overall planning 、 Scientifically formulate the road map of networking function and application standardization technology , This section first gives an overall introduction to the networking function and application standard roadmap Construction Methodology .

3.1 Methodology overview

The roadmap of networking function and application standard system is constructed by combining various analysis methods . First , Yes 《 Guidelines for the construction of national Internet of vehicles industry standard system ( Intelligent Internet car )》 Sort out the standard items related to Internet connection listed in the standard system table of intelligent Internet connected vehicle as the basic and general specification standard items in the standard system of Internet connection function and application ; then , This paper analyzes the questionnaire on the application and standardization needs of automobile network technology , Typical application scenarios of networking technology are selected according to certain analysis methods , The time sequence of standardization of typical application scenarios is determined according to a certain priority principle , For projects that are not suitable for national standards, sort out corresponding industry standard projects ; secondly , be based on CIDAS This paper analyzes the characteristics and types of passenger car road traffic accidents in China , The analysis results can be used as a powerful verification of the questionnaire analysis results of the application of automotive Internet technology and standardization needs , To prove the scientificity of setting the priority of scene standards 、 rationality ; Last , Priority shall be given to the formulation of basic general standards 、 The principle of collaborative development of scene standards determines the priority of standardization .

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3.2 Application and standardization demand analysis of automobile network technology

3.2.1 Introduction to the questionnaire

Questionnaire survey on the application of automotive Internet technology and standardization needs, respectively, for driving safety related application scenarios 、 Driving efficiency related application scenarios 、 Application scenarios related to information services 、 Application scenarios related to vehicle control ( This part is sorted out by the research group on the standardization requirements of the information interaction function between intelligent networked vehicles and mobile terminals of the networked function and application standard working group ) Four types of application scenarios were investigated .

It should be noted that , This questionnaire survey is based on the current situation of the industry and the principle of safety first in standardization , Investigate the typical representative scenarios of the above four types of application scenarios , These four application scenarios are not the main reference basis for determining the priority of standard formulation . According to the development of domestic industry , Questionnaire pair 47 Conduct research on three typical application scenarios , The specific investigation scenarios are shown in the table below 1.

Their technical route 、 Communications technology 、 Usage of Internet connection information 、 Technical status and time plan 、 Conduct research on technology cost, etc , The specific research items are shown in the table below 2.

The scope of this investigation involves automobiles 、 Electronics 、 Information communication 、 Transportation and other industries , Each main engine factory 、 Parts supplier 、 Third party testing agency 、 Test equipment suppliers actively participate in questionnaire survey and feedback .

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The realization of the application scenario of automobile network technology needs the support of communication technology , Different application scenarios apply different communication technologies , In order to better support the formulation of scene standards , Analyze the communication technology of the application scenario based on the network connection technology , There are three main communication technologies used :LTE-V Direct communication 、LTE-V Cellular communication 、5G signal communication , The proportion of various communication technologies is shown in the figure 4 Shown .

The technical requirements of on-board information interaction system are regarded as general specification standards , Its priority shall be determined according to LTE-V Technical requirements of direct connected on-board information interaction system are preferred 、LTE-V Technical requirements of cellular vehicle information interaction system 、5G The technical requirements of on-board information interaction system shall be carried out in sequence again .

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3.2.2 Typical application scenario analysis

Summarize and analyze the questionnaires fed back by the industry , First of all, 47 The technical routes of three typical application scenarios are statistically analyzed , Calculate the proportion of each technical route in each scene , The calculated proportion is normalized , The normalized values of the proportions of the four technical routes are obtained as shown in the table 3 Shown .

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When analyzing the scenarios in the above table , Using the central limit theorem , Combined with small probability events , Sampling survey and statistical analysis theory , Typical networking application scenarios are filtered out as shown in the table below 4 Shown , The application scenarios of networking and single vehicle sensing fusion are shown in the table 5 Shown .

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To determine the development sequence of standards related to networking functions and applications , Many factors need to be quantitatively analyzed . Analysis according to the investigation , Technical route 、 Mass production plan 、 Standardized demand time 、 Cost and other factors , The scoring methods of various research projects are shown in the table below 6 Shown .

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The technical route 、 Technical cost 、 Mass production plan 、 The standardization needs time to be scored , It should be noted that , Unless otherwise specified , The scores in this section refer to weighted average scores . The scoring method of each factor analysis is :

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Take the score of Internet connection technology as an example : Network technology score = Network connection technology probability typical application scenario occupancy score + Occupancy score of typical application scenarios of networking and single vehicle sensor fusion technology + Both Internet connection and single vehicle can independently realize the occupancy score of typical application scenarios .

Last , Comprehensive analysis score of application status of computing technology = Technical route analysis score + Technical cost analysis score + Analysis and scoring of mass production plan + Standardized demand time analysis score .

chart 5 Is the flow chart of standard setting priority algorithm . First , Using the central limit theorem 、 Small probability events 、 Sample inspection and statistical analysis are used to screen typical application scenarios of networking technology and fusion ; secondly , Calculate the comprehensive score of the selected typical application scenarios , The calculation order of each score does not affect the analysis results ; then , Call the safe action rate selection subroutine to determine the safe action rate value of each typical application scenario , The value principle is : Information service class value 0.10、 Driving efficiency value 0.25、 Value of safety prompt class 0.50、 Security alert value 0.75、 Value of safety auxiliary class 1.00; Last , Determine the standardization priority of scene projects according to the priority principle , Priority principle is based on comprehensive calculation score , Take the weighted average value after considering the safe action rate .

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3.2.2.1 Driving safety related application scenarios

In this section 15 Conduct a comprehensive analysis of the current situation of technology application in four typical driving safety related application scenarios , Calculate their technical route scores respectively 、 Technical cost score 、 Technical status and time plan score 、 Standardized demand time score , The scores were normalized , Get the final score .

(a) Technical route analysis

The technical route reflects the technical means selected during the development of this typical application scenario , Such as : Networking technology 、 Single vehicle sensing technology 、 Networking and single vehicle sensor fusion technology, etc , It is the first influencing factor to be considered in the formulation of standard road map , When formulating the roadmap of networking function and application standards, give priority to the typical application scenarios realized by networking technology , Then consider the typical application scenarios of network connection and single vehicle sensor fusion .

Yes 47 Analysis of typical application scenarios , Firstly, the application scenario realized by network connection technology is selected , Then give it a score , The score results are shown in the table below 7.

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(b) Technical cost analysis

The cost reflects the cost required for the transformation of Internet technology into products , It plays a vital role in the process of technology transformation to products , It will also affect consumers' willingness to buy relevant products to a certain extent , It has an important impact on the formulation of the standard roadmap . To make the technical cost analysis comparable , Technical cost in this questionnaire survey “ high ”、“ in ”、“ low ” For vertical comparison , That is, the technical cost of this typical application scenario is compared with that of other typical application scenarios in the questionnaire . The scoring results of technical cost analysis are shown in the table below 8.

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(c) Mass production plan analysis

The product technology status and time plan reflect the order of mass production planning for typical application scenarios , The score has a certain correlation with the technology cost , The scoring results are shown in the table below 9 Shown .

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(d) Standardization demand time analysis

The standardization demand time directly reflects the urgency of the manufacturer's standardization demand for this typical application scenario , It is an important factor affecting the formulation of the standard roadmap , It directly affects the standardization priority of typical application scenarios . The score of standardization demand time is shown in the table below 10 Shown .

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(e) Comprehensive analysis of technology application status

The technical route needs to be comprehensively considered when formulating the roadmap of networking function and application standards 、 Technical cost 、 Product mass production plan 、 Standardization demand time and other factors , Comprehensive analysis of these influencing factors , Relative to single vehicle sensing , Low cost of networking technology , Therefore, the weight coefficients of each influencing factor are 1, The calculated comprehensive evaluation scores are shown in the table below 11 Shown .

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3.2.2.2 Driving efficiency related application scenarios

The analysis method is the same as the driving safety related application scenario , Feedback according to the survey questionnaire , Analysis of tides / Dynamic lane driving 、 Green wave speed guide 、 Three typical application scenarios such as traffic information and path planning , The comprehensive analysis scores of its technology application status are shown in the table 12.

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3.2.2.3 Application scenarios related to information services

The analysis method is the same as the driving safety related application scenario , Feedback according to the survey questionnaire , The typical application scenarios of information service based on network connection technology are analyzed , The comprehensive analysis scores of its technology application status are shown in the table 13.

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3.2.3 Prioritization

According to the standards introduced in this chapter, the priority algorithm is formulated for driving safety application scenarios 、 Driving efficiency application scenarios 、 Prioritize information service application scenarios , Get the priority of standard formulation, as shown in the table 15 Shown . Internet connection 、 Typical application scenarios of single vehicle sensing belong to safety auxiliary scenarios , Its priority score is the same as the comprehensive score of technology application status , Because its priority score is not given .

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3.3 Statistical analysis of road traffic accidents in China

Intelligent network automobile sub committee of National Automobile Standard Committee 2017 Published in 《 Advanced driving AIDS (ADAS) Standard setting roadmap Research Report 》 The statistical data of road traffic accidents in China are systematically analyzed , From the perspective of passenger cars , The proportion of various passenger car accidents is shown in the figure 6 Shown , Serious injury caused by frontal collision of passenger cars / The death toll is the highest , The second is the passenger car side impact accident .

therefore , The safe and effective technical means of frontal collision accidents and side collision accidents are the application scenarios that should be given priority when formulating the standard road map .

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Take passenger cars as the analysis object , Total accidents involving passenger cars 1047 rise , Occupy CIDAS Total number of accidents (N=1718) Of 60.94%, Involving passenger car drivers 1770 people , Among them death 82 people , Accounting for the total number of deaths (N=489) Of 16.77%, Seriously injured 63 people , In the total number of serious injuries (N=389) Of 16.19%, minor wound 267 people , Accounting for the total number of minor injuries (N=1272) Of 20.99%. Injuries of injured drivers and passengers AIS Grade equals 1 or 2 Minor injury at , The injury AIS Level greater than or equal to 3 Serious injury at , Pictured 7 Shown .

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23.54% Of the casualties of passenger cars come from the form of passenger car side impact accidents , The second is the fixed object collision accident , It includes 19.66% Casualties . Besides , The rear collision accident of passenger cars also caused great harm to the drivers and passengers . Accidents with serious casualties of passenger car drivers and passengers are car accidents - Vehicle accident or single vehicle accident , vehicle - Two wheel vehicle / Pedestrian accidents do little harm to passenger car drivers and passengers , Pictured 8 Shown .

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The above analysis shows that , Side impact is the most serious form of traffic accident in which passenger cars participate in traffic accidents , To reduce side impact accidents , Priority should be given to the corresponding standardization work .

Intersection is a typical side impact accident prone area , This is consistent with the priority analysis results of intersection projects in typical application scenarios , Thus, the objectivity and scientificity of priority analysis of typical application scenarios are proved . Based on this, we can analyze the corresponding relationship between other collision types of traffic accident forms and the priority of typical application scenarios , This report will not be repeated .

4 Networking function and application roadmap construction

4.1 The overall architecture

The road map of networking function and application standardization needs to consider the current situation of technology application 、 Public demand and other factors , The standard shall be formulated according to the general foundation 、 Industry needs 、 The principle of public demand .

stay 《 Guidelines for the construction of national Internet of vehicles industry standard system ( Intelligent Internet car )》 And other important documents , Fully study the industry's standard requirements for networking technology , For the basic 、 General normative 、 It is helpful to promote the development of intelligent networked automobile industry 、 And the technical content with relatively low technical cost is studied , On the basis of fully demonstrating its scientificity and feasibility , Build a clear hierarchy 、 The content is perfect 、 The function and application standard system of intelligent Internet connected vehicle Internet connected to the actual application needs of the industry . The overall logic block diagram of the road map for the standardization of the functions and applications of the intelligent car network is shown in Fig 9 Shown .

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According to the construction method of network function and application standard system , Integrate the logical relationship between all levels , The framework of networking function and application standard system is divided into “ Basic standards ”、“ General specification standards ”、“ Scene class standard ” Three levels .

4.2 System content

The networking function and application standard system covers the following contents: .

4.2.1 Foundation class

Basic standards mainly include terms and definitions 、 Classification and code of automobile networking information 、 Data structure and transmission format of automobile networking 、 Classification of automobile networking 、 Road vehicles — Networked vehicle (ExVe) Methodology and other standards . The terms and definitions have been included in the recommended national standards 《 Terms and definitions of intelligent networked vehicles 》 in , Classification and code of automobile networking information 、 The data structure and transmission format of automobile networking have been included in the recommended national standard 《 General requirements for intelligent networked vehicle data part 1 part : Classification and code 》《 General requirements for intelligent networked vehicle data part 2 part : data structure 》 in ; Road vehicles — Networked vehicle (ExVe) Methodology Standard System ISO20077 Conversion standard , At present, the recommended national standard plan number has been issued , Other basic standards are 《 Guidelines for the construction of national Internet of vehicles industry standard system ( Intelligent Internet car )》 Standard items planned in the standard system .

4.2.2 General specification class

General specification standards mainly include technical requirements and function evaluation of on-board information interaction system . Recommended national standards 《 be based on LTE-V2X Technical requirements for vehicle information interaction system of direct connection communication 》 It belongs to the technical requirements standard of information interaction system , With 5G Technology development and commercial landing , be based on 5GV2X The technical requirements of on-board information interaction system for communication are also included in the standard system planning . in addition , General specification for function and performance evaluation of automotive networking 、 The application conditions of automobile networking are also within the scope of such standard projects . Other general specification standards are 《 Guidelines for the construction of national Internet of vehicles industry standard system ( Intelligent Internet car )》 Standard items planned in the standard system .

4.2.3 Scene class standard

Scenario standards are standards for specific application scenarios of networking technology , The division basis and specific application scenarios come from industry status analysis and questionnaire survey . This report takes the typical application scenarios investigated as the representative of each type of scenario , Planning for scene standards , Due to the limited scenes involved in the questionnaire survey , This report only contains some typical application scenarios . Application scenarios are divided into networking technology application scenarios from the perspective of technical implementation 、 Application scenarios of networked single vehicle sensor fusion , But from the perspective of technology iteration and technology promotion , It can also be divided into early warning scenarios related to driving safety 、 Scene of fusion with perceptual information 、 Scenario for collaborative autopilot . Standard braking shall not limit the technical route , Therefore, the development priority of scenario standards will be considered from the perspective of technology iteration and technology promotion , The first stage is to carry out the standardization of early warning scenarios for driving safety , Then carry out the scene standardization of perceptual information fusion , Finally, the scene standardization for collaborative automatic driving is carried out .

It is worth noting that , Due to the limited space of the questionnaire 、 Technical development status and other factors , Only some typical application scenarios are given in the scenario class standard , Scene standardization is not a standard for each scene , Instead, a standard is formulated for a class of scenes with the same characteristics .

4.3 Standard formulation principles and priorities

The formulation of standard road map should be based on national conditions 、 Plan as a whole , Foundation first 、 Urgent need comes first , Open cooperation 、 General principle of coordinated development . The preparation of the road map shall follow the basic general standards and give priority to the formulation 、 The priority principle of scenario standards is formulated according to the application status , The following four points need to be made :

(1) Application status refers to the comprehensive scoring results of technology application status in the analysis chapter of network connection function and application standardization technology roadmap ;

(2) The scene class standard is carried out in the standardized priority order obtained according to the priority principle ;

(3) The basic general class standard is the necessary supporting standard to realize the scene class standard , The formulation of relevant standards shall be carried out simultaneously , To ensure the real realization of scene functions ;

(4) Comprehensive consideration for the preparation of this research report C-V2X Industrialization path and time ( Relevant information comes from the information released by China intelligent network automotive industry innovation alliance 《C-V2X White paper on industrialization path and timetable 》).

4.3.1 Set principles

Based on the national conditions 、 Plan as a whole . Combined with the current situation and characteristics of China's network technology and industrial development , Give full play to the role of government departments in top-level design 、 Leading role in organization and coordination and policy formulation , Formulate a standard system construction scheme combining government guidance and market drive , Establish the function and application standard system of automobile Internet connection suitable for China's national conditions .

Foundation first 、 Urgent need comes first . Scientifically determine the key areas for the construction of automobile network function and application standard system , Accelerate the research and formulation of basic commonalities and key technical standards ; Consider the development status and future application needs of the industry , Reasonably arrange the preparation and revision progress of technical standards , Accelerate the research and formulation of urgently needed standard projects .

Open cooperation 、 Coordinated development . Adhering to the concept of open cooperation , Build cross industry 、 Cross domain 、 Cross departmental collaborative development 、 Mutually reinforcing working mechanism , Overall utilization of automobile and information communication 、 Advantageous resources in transportation and other related industries , Promote wide participation of stakeholders in standard setting , Take the development of networking technology as the common goal , Promote technological innovation and industrial development .

4.3.2 Standard setting priority

In addition to the priority of standard formulation, the standard formulation time shall also consider the standards urgently needed by the industry . Intersection is an important scene for traffic safety , It is also a typical scenario for the application of networking technology , It is also an important application scenario of vehicle road collaboration ; The survey and analysis results of automobile network technology application and standardization demand questionnaire show that , Intersection related application scenarios urgently need standardization . Therefore, priority should be given to the formulation of relevant standards for intersections . The priority of standard formulation is shown in the table below 16 Shown .

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4.3.3 Standard setting roadmap

Information service standards are value-added services for automobiles , Considering that there are great differences between enterprises whether to adopt this technology or not , Therefore, some information service scenarios are suggested to be formulated in the form of industry standards , With the development of technology , If relevant application scenarios put forward the standardization requirements of national standards , The standardization of corresponding national standards can be considered . Industry standards are shown in the table below 17 Shown , Industry standard does not set priority . The road map for the formulation of recommended national standards is shown in the table below 18 Shown . It should be noted that , surface 18 The typical application scenarios listed in do not correspond to one standard for each scenario , Relevant scenarios will be merged and standardized in an appropriate way , If you run a red light 、 Intersection anti-collision 、 Three scenarios such as safe traffic guidance at intersections will be studied as a typical working condition .

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surface 17 Recommendations on priority of recommended national standards

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surface A.1 Recommended national standard system for Internet connection function and Application

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