The synonym of networking is not 5G, it also requires the integration of cellular vehicle networking and 5G networking. The cellular Internet of Vehicles can provide low-latency and highly reliable communication capabilities and has become the mainstream international communication standard for the Internet of Vehicles. With the evolution of mobile communications from 4G to 5G, the cellular Internet of Vehicles standard has surpassed other standards in the global competition. situation.

Recently, the fourth plenary meeting of the Special Committee on the Development of the Internet of Vehicles Industry of the National Manufacturing Power Construction Leading Group emphasized that the “14th Five-Year Plan” clearly proposed to actively and steadily develop the Internet of Vehicles. The next period will be a critical period for the accelerated deployment and application of the Internet of Vehicles.

The Internet of Vehicles composed of smart cars and smart roads is also an important scenario for 5G development.

On April 12, Xu Zhijun, the rotating chairman of Huawei, reminded the industry not to use mythical technology capabilities at the annual global analyst conference, and to look at the significance of 5G to the Internet of Vehicles and intelligent driving.

Indeed, the Internet of Vehicles requires 5G, but 5G is not the only condition.

5G is the basic support for the Internet of Vehicles

With the continuous maturity and implementation of technologies such as 5G, cellular vehicle networking (C-V2X), and autonomous driving, the digital, networked, and intelligent demands required by the Internet of Vehicles are increasingly being met, and the future vision presented by smart transportation is becoming more and more real and visible.

The “Outline of Building a Powerful Transportation Country” and “Outline of National Comprehensive Three-dimensional Transportation Network Planning” issued by the Central Committee of the Communist Party of China and the State Council proposed that by 2035, it is necessary to basically build a transportation power that “satisfies the people, has strong guarantees, and is in the forefront of the world”, and realizes “intelligent and advanced transportation”. , full coverage of transportation perception”.

Through the Internet of Vehicles, we can achieve a game of transportation, and to reflect the power of the Internet of Vehicles, 5G is essential.

In this game of chess, smart cars are the key pieces. In order to achieve high-speed in-vehicle entertainment functions, massive sensor data collection and analysis, ultra-reliable and low-latency autonomous driving, and the connection between cars and road networks, people and clouds Seamless interconnection requires a powerful basic network. 5G with features such as high reliability, high bandwidth, and low latency can meet these needs.

According to Ge Yuming, deputy director of the Institute of Technology and Standards, China Academy of Information and Communications Technology, the introduction of new technologies such as 5G will promote innovation in two application scenarios of the Internet of Vehicles. One is to improve the intelligent service capabilities of transportation, driving safety and travel efficiency. The second is to promote the maturity of autonomous driving technology.

The original intention of the Internet of Vehicles is to put intelligent driving vehicles on the road, and the realization of intelligent driving requires the support of four major technical systems: perception (road conditions), cognition (environment), (AI) decision-making, and (vehicle) control.

Chen Xiaobing, a member of the Beijing Municipal Committee of the Chinese People’s Political Consultative Conference and a senior automotive media person, said: “To make the car no longer an isolated device, and to make the traffic no longer fragmented, the Internet of Vehicles needs 5G. 5G is the primary condition for the real commercialization of intelligent driving. Optimistically, In addition to cognitive systems still waiting for 5G connectivity, other systems are maturing.”

The ultimate goal of the Internet of Vehicles is unmanned driving, and it is hard to say when it will be realized. It is foreseeable that once this goal is achieved, it will disrupt the automobile, transportation and all related industries.

According to the forecast of Gasgoo Automotive Research Institute, the global market size of the Internet of Vehicles will exceed 650 billion yuan in 2020, with a penetration rate of 20%.

This most disruptive industrial change has been waiting for 5G to fully demonstrate its “magic”.

Miao Wei, deputy director of the Economic Committee of the National Committee of the Chinese People’s Political Consultative Conference and former minister of the Ministry of Industry and Information Technology, said: “We have determined the development model of vehicle-road coordination, and the communication infrastructure construction adopts a moderately advanced strategy.”

As Miao Wei said, my country is not caught in the tangle of “give way and wait for the car or the car waits for the road”, and the 5G network is moderately advanced to lay the infrastructure for the Internet of Vehicles based on C-V2X.

In Chen Xiaobing’s view, the existing vehicles with “5G vehicles” as the selling point are still in the shallow application stage, and the real intelligent networked vehicles are still waiting for the overall layout and coordinated construction of transportation infrastructure and information infrastructure. That’s where 5G technology comes in.

C-V2X is a must for intelligent transportation

Intelligent transportation and autonomous driving have put forward more stringent requirements for system performance such as communication rate, delay and reliability of the Internet of Vehicles. At the same time, the synonym of the Internet of Vehicles is not 5G, it also requires the integration of C-V2X and 5G networking. C-V2X can provide low-latency, high-reliability communication capabilities, and has become the mainstream international vehicle networking communication standard. With the evolution of mobile communication from 4G to 5G, the C-V2X standard has surpassed other standards in the global competition. situation.

Miao Junhai, general manager of Huawei’s wireless C-V2X vehicle-road collaboration field, believes that from connecting cars to the Internet, as well as connecting cars to cars, cars to people, and cars to road infrastructure, to realize the exchange of information between cars and the outside world. From a perspective, the information exchange network between the car and the outside world is more closely related to smart transportation.

From the perspective of autonomous driving, C-V2X technology is part of the advanced driver assistance system (ADAS), which works with cameras, lidars and other sensors to assist vehicles to complete high-level autonomous driving.

Although in theory, a single vehicle can achieve autonomous driving by stacking sensors regardless of the cost, but a vehicle without C-V2X is like an information island, unable to communicate with surrounding vehicles and infrastructure, and there is a great sense of perception and decision-making. limit.

Standards are the forerunners of technology implementation. In 2015, the International Organization for Standardization (3GPP) launched the research on C-V2X standards based on 4G LTE.

As the initiator and promoter of the C-V2X standard, Dr. Chen Shanzhi, deputy general manager of China Information Technology Group and director of the State Key Laboratory of Wireless Mobile Communications, witnessed the whole process of C-V2X from conception to standard, from standard to industry.

“After the concept of C-V2X was proposed, it also sat on the ‘cold bench’ for several years. After nearly 10 years of hard work, the C-V2X technical standard has been recognized by major countries around the world.” In January 2020, the Ministry of Industry and Information Technology made it clear that C-V2X V2X is the only Internet of Vehicles technology standard in China. The reporter learned from the 16th meeting of the C-V2X working group of the IMT-2020 (5G) promotion group held on April 8 that in order to promote the further maturity of the IoV industry chain and supply chain, the 2021 series of test demonstration activities will be planned. Sub-regional sub-scenario expansion.

The large-scale tests in Beijing, Hefei, Wuhan, and Liuzhou, which started in May this year, will focus on providing a large-scale environment for C-V2X equipment systems by constructing a scenario of large-scale operation of more than 200 C-V2X vehicles for urban crowded intersections. Under the communication delay, reliability and other performance tests.

In the Wuhan C-V2X application demonstration opened in September 2021, more than 300 urban vehicles equipped with C-V2X equipment will carry out application verification of the mixed traffic of ordinary vehicles and connected vehicles under complex traffic flow. Carry out roadside perception system evaluation based on the requirements of urban perception intersection construction standards. The cross-provincial application demonstration of C-V2X in “Shanghai-Suzhou” in October 2021 will explore the development of C-V2X to support autonomous driving at the same time as the “C-V2X+5G+Beidou” cross-provincial vehicle networking comprehensive application demonstration , Unmanned inspection, remote control driving and other application verification.

Every link of intelligent transportation cannot tolerate mistakes

The upgrade of intelligent transportation is being carried out in all dimensions, but whether it can become a “traffic neural network” that has perception, thinking, decision-making and self-growth, some obstacles must be removed.

The hugeness of the Internet of Vehicles system, the complexity of technology, the diversity of applications and the personalized characteristics of scenarios make it difficult for traditional IT architecture to meet its needs.

As Yang Yuanqing, chairman and CEO of Lenovo Group, said: “The digital and intelligent transformation of all walks of life is inseparable from the support and empowerment of the ‘new IT’ infrastructure based on the ‘end-edge-cloud-network-intelligence’ technology architecture. can.”

Miao Junhai believes that the biggest challenge of the Internet of Vehicles is that there is no strong operating entity. At the same time, although the relevant local governments and enterprises have cooperated with enterprises to carry out innovation pilots, it cannot be ruled out that some places pay too much attention to attracting investment and do not focus enough on the construction and operation of the Internet of Vehicles.

The Internet of Vehicles is a complex system engineering, and every link is very critical, and there is no room for mistakes.

In recent years, network security incidents and automotive information security recalls for the Internet of Vehicles have occurred from time to time. With the acceleration of the intelligent and networked process of the Internet of Vehicles technology, the network security problem of the Internet of Vehicles is becoming more and more serious.

Where to start to solve the safety challenges of vehicle-road collaboration?

The Fourth Plenary Session of the Special Committee on the Development of the Internet of Vehicles Industry of the Leading Group for the Construction of a National Manufacturing Power proposed that it is necessary to accelerate the establishment of a digital identity authentication mechanism for the Internet of Vehicles, promote cross-industry and cross-regional interconnection and secure communication of the Internet of Vehicles, and strengthen network and information security. Improve the safety level of products and services from the source.

Chen Xiaobing said: “The data security of the Internet of Vehicles has also attracted much attention. At present, there are problems such as responsibility and unclear specification requirements for data collection and storage of intelligent networked vehicles. The security of information and data is low, and there is a lack of data. The effective collection and further excavation of the data lead to the occurrence of related security incidents from time to time.”

Obviously, the goal of smart cars and smart roads can only be achieved if related industries go hand in hand.

(Source: Science and Technology Daily Liu Yan)

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