A method and device for data transmission in traffic situation awareness
A data transmission and traffic situation technology, applied in the field of intelligent transportation, can solve problems such as network management, wireless data network routing storms, restrictions, etc., to achieve efficient transmission, avoid routing storms, and avoid network management effects
Inactive Publication Date: 2017-04-12
SICHUAN UNIV
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Problems solved by technology
[0004] In order to transmit the perceived traffic situation and information to the rear in a timely manner, technologies such as the Internet of Vehicles can be used to connect many vehicles into a network to realize information interaction. However, there are problems such as routing storms and network management in the wireless data network established between dynamic vehicles. make it have many limitations in practical use
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[0080] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the present invention Examples, not all examples.
[0081] figure 1 It is a schematic diagram of Embodiment 1 of the present invention, a method for data transmission in traffic situation awareness. Such as figure 1 As shown, the method includes the following steps.
[0082] 101. The vehicle obtains information such as the position and speed of its own vehicle;
[0083] Using GPS, Beidou and other satellite positioning technologies, the current position and time of the vehicle can be obtained; usually, the frequency of acquisition can reach once per second;
[0084] The vehicle can estimate the average vehicle speed during this period th...
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The invention provides a data transmission method and device for traffic situation sensing, and the method comprises the steps: a vehicle obtains the position and speed of the vehicle; the vehicle builds wireless data links with surrounding vehicles for data interaction through short-distance wireless communication, thereby obtaining the information of a front vehicle; the vehicle combines the information of vehicles in the forwarding direction of the vehicle, and forms and transmits a vehicle information link. The sharing and convergence of vehicle information are achieved through point-to-point temporary wireless data links among the vehicles running on a road, thereby avoiding problems of routing storm and network management during the building of a wireless network. Therefore, the vehicle information transmitted from the front vehicle can be transmitted to the rear vehicle timely, thereby achieving the data transmission after traffic situation sensing. The rear vehicle can obtain the front traffic situation through the vehicle information.
Description
technical field [0001] The invention relates to the field of intelligent transportation, in particular to a method and device for data transmission in traffic situation awareness. Background technique [0002] Traffic situation awareness is an important research content in the field of intelligent transportation. Its purpose includes obtaining real-time road traffic conditions and finding out the reasons for road congestion. Especially when congestion occurs, it is very important for the traffic control department and other traffic participants to perceive the congestion situation and the cause of the congestion at the first time. [0003] It is relatively easy to realize traffic situation awareness, because there are traffic participants on the scene when any traffic jam occurs, but how to quickly and effectively transmit this information to the traffic control center and to the rear traffic participants is a difficult problem. [0004] In order to transmit the perceived t...
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IPC IPC(8): G08G1/0965
Inventor 杨斌冯子亮王洋王思雅吴振中李海波赵朝华
Owner SICHUAN UNIV