The BeiDou is an important space infrastructure supporting China's economic and social development. After the launch of the Beidou-3 system, improving the supporting capacity of the Beidou industry and expanding the popularity of the Beidou application have become important tasks to promote the development of the Beidou industry and ensure national security. In recent years, with the continuous expansion of the depth and breadth of the application of the Beidou system, its consumer application field has shown a trend of multiple flowering points. In this regard, the "Mass Consumption View of Beidou" series of reports focuses on the new situation, opportunities, and challenges faced by the development of Beidou's mass consumption field from different industries, such as intelligent terminals, car terminals, and smart agriculture. After unmanned delivery vehicles, unmanned taxis, and unmanned retail vehicles are put on the road, the first batch of intelligent connected passenger buses will also start autonomous road testing on the streets of Yizhuang, Beijing. The positioning and guidance of navigation systems have become essential factors in achieving autonomous driving. In January of this year, the Ministry of Industry and Information Technology issued several opinions on the promotion and application of Beidou in the field of mass consumption (hereinafter referred to as the "Opinions"). The Opinions put forward that Beidou high-precision positioning technology should be popularized and applied in the Vehicle-to-everything in combination with Beidou foundation enhancement system and high-precision maps. Currently, intelligent connected vehicles and autonomous driving are one of the key areas of technological competition among countries. What key roles will the Beidou system play in this field? An Xudong, Director of the Antenna and Positioning Department of the Taier Terminal Laboratory of the China Academy of Information and Communications Research, stated that in the process of achieving high-level autonomous driving applications in intelligent connected vehicles, on the one hand, it is necessary to achieve centimeter level positioning accuracy; On the other hand, it is necessary to maintain real-time and stable service capabilities in terms of reliability. For example, the intelligent connected vehicle only supports a single positioning system, which will face a bottleneck in the research and development of high-level automatic driving applications. The integrated positioning scheme supporting the Beidou system will help improve the accuracy and reliability of navigation and positioning services. Combining real-time dynamic difference (RTK) and ultra high precision Inertial measurement unit (IMU) and other positioning technologies, automatic driving can be improved in overpasses, tunnels The effectiveness of complex transportation environments such as underground garages and adverse weather conditions such as rain, snow, and fog. The Beidou system is a global satellite navigation system that China independently builds and operates with a focus on national security and economic and social development needs. It is an important national spatiotemporal infrastructure that provides global users with 24-hour, high-precision positioning, navigation, and timing services. "Professor Han Yi from the School of Automotive Engineering at Chang'an University stated that at the Beijing Winter Olympics, the Beidou system was combined with 5G communication technology, The L4 level autonomous vehicle in Shougang Park has achieved functions such as autonomous driving, automatic parking, and centimeter level high-precision positioning. In addition to the navigation function, the precise timing function of the Beidou system has also become an important guarantee for the multi-sensor time synchronization of the auto drive system. Zhixing CTO Wang Xiao introduced: "Specifically, there is a clock inside each sensor, and the time of each sensor needs to be initially aligned. In addition, the timing system inside the sensor may have certain errors as it is used. If there is a deviation in time, it will lead to a deviation in the position of obstacles detected by perception. The path planned in the decision-making plan does not match the actual situation, and it may collide with obstacles. The Beidou system has high-precision atomic time
Edit：XiaoWanNing Responsible editor：YingLing
Source：People's network
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