From passive safety to active safety, from driver assistance to autonomous driving, from cycling intelligence to V2V/V2X, humans have never stopped in the pursuit of car safety. Even simple security technologies have evolved into new technologies that can change lifestyles. If the pace of development of a car engine is likened to "turtle speed", then the development of intelligent network technology is equivalent to "speed of light." Another difference between the two is that the former began in foreign countries and carried forward abroad; while the latter began in foreign countries, but the Chinese market made it flourish.
When talking about intelligent networked vehicles in recent years, no matter the automakers or component suppliers, they think that the bottleneck is never in the technology itself, but in the progress of regulations and infrastructure construction. However, this bottleneck is about to be broken.
On November 18th and 23rd, China officially launched the research and test of the frequency division of the 77-81GHz millimeter wave radar and the LTE-V technology for vehicle communication. These two tasks are led by the Automotive Information Services Industry Application Alliance (TIAA).
With the development of automotive intelligence, the vehicle's millimeter-wave radar has long detection range, long bandwidth, small antenna, high integration, stable detection performance, unaffected by the shape and color of the detected object, and is not affected by large airflow. Advantages, as well as good environmental adaptability, have become an indispensable equipment in car collision warning, adaptive cruise, active safety (ADAS) and even automatic driving technology. According to relevant statistics, in 2014, the global automotive millimeter wave radar market shipments were 19 million, and it is expected to reach 72 million by 2020. The compound growth rate in the next five years is about 24%, and the total market will exceed 20 billion. yuan.
In 2016, the Chinese government officially launched the ITU Global Transport Unified Frequency (WRC-19 1.12) issue. As an important component of smart cars and smart transportation, the frequency division of the vehicle's millimeter-wave radar is also closely followed by the Chinese government. A highly regarded technical field.
In addition, the frequency division of LTE-V for vehicle and car communication is even more important. Many technicians of component suppliers have said that the real implementation of V2V requires countries to open certain frequency bands, and these bands cannot overlap or close to the confidential or military frequency bands.
This work is jointly undertaken by TIAA and China Information and Communication Research Institute. The former is responsible for research and experiment work in Changchun City, Jilin Province, Wuhan City, Hubei Province, and Chongqing City. The latter is responsible for research and testing in Beijing, Shanghai, and Zhejiang Province. The research and test work of the above six provinces and municipalities is based on the “Intelligent Vehicle and Smart Transportation Application Demonstration Based on Mobile Broadband Internet of Things†by the Ministry of Industry and Information Technology. The Chinese industry sector is actively supporting the innovative application of independent intelligent transportation technology. Initiative.
At the moment, the gratifying thing is that the intelligent network technology has been taken seriously by the production, learning, and research circles. The combination of the three is also blooming. For example, General Motors is working with Tsinghua University and Changan Automobile to develop the China Mobile Automotive Technology (hereinafter referred to as "V2X") application layer standard, and plans to release it at the end of this year. Previously, GM has participated in the compilation of the China Automotive Engineering Society's "China Intelligent Networking Automotive Technology Development Roadmap" as one of the members of the organizing committee. The latter will play a role in car manufacturers' R&D and future policy development. Guidance and support.
TIAA Secretary-General Pang Chunlin said that for smart cars and smart transportation, sensors and communication technologies are like two eyes. At present, the "left eye" of image sensor, millimeter wave radar and laser radar cannot guarantee 100% of all-weather all-terrain conditions. Target recognition, therefore must rely on the "right eye" of vehicle and car communication technology to supplement, in order to achieve the visual level of binocular 1.5, to achieve automatic car driving and even driverless in the daytime, simple, complex at night, simple at night, nighttime 100% reliable driving of complex weather conditions. Therefore, vehicle and vehicle communication technology has also become the main battlefield for the active layout and wrestling of the world's smart cars and advanced intelligent transportation countries.
Tesla, who claims to be autonomous driving technology global No.1, has had many accidents at home and abroad. Although the official denies that it is a mistake in its assisted driving function, it at least proves the above statement - relying solely on the "left eye" It is impossible to achieve automatic driving, and it is necessary to use intelligent traffic.
Dr. Du Jiangling, president of the General Motors Chinese Academy of Sciences, pointed out that after applying V2X technology, all vehicles will continue to send information to the outside world during the journey, indicating their location, speed and trajectory - these macro information is collected than the sensor The immediate information ensures the safety of the vehicle.
At the commercial application level, the Chinese market is now much more friendly to the technology than abroad. According to US statistics, about 70% of users in the United States will be willing to delay buying cars in order to obtain intelligent network services. This trend is even more pronounced in China. According to PricewaterhouseCoopers' Mainland China and Hong Kong's 2016 Smart Network Consumer Survey, 85% of consumers in China are eager to own a fully automated vehicle.
Currently, V2V or V2X has the most basic applications. For example, the front and rear traffic lights are displayed on the dashboards of General Motors and Audi. Based on this information, the user can accelerate or brake in advance. Of course, the application is more tolerant of network speed and positioning accuracy. Today's speed is not enough to locate every high-speed vehicle, and to predict possible accidents.
Therefore, V2X's current research work in China is still concentrated in the field of communications, which means that the technology can only serve as a warning for drivers and has not yet participated in car control. In the future, relying on the mature near-field communication DSRC or the faster 5G network, V2X will one day become as popular as a seat belt.
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