Virtual traffic light control reminding method for digital twin smart city traffic
A traffic light control and urban traffic technology, which is applied in the field of virtual traffic light control reminders, can solve problems such as high false detection rate, weak robustness, and danger of unmanned vehicles, and achieve the effect of ensuring safe driving
Pending Publication Date: 2022-04-26
FUJIAN UNIV OF TECH
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Problems solved by technology
[0003] At present, the vast majority of intersections still use traditional traffic light equipment. Due to the differences in the installation position and shape of traffic light equipment at different intersections, most current traffic light recognition technologies based on cameras have a high false detection rate and low robustness. powerful
In addition, the recognition method based on traffic light images is also easily affected by the weather and the surrounding environment. For example, in the case of heavy snow or unmanned vehicles being blocked by large vehicles, it is difficult for image recognition methods to accurately identify traffic lights. , thus causing immeasurable danger to unmanned vehicles
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[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.
[0039] In the following introduction, the terms "first" and "second" are only used for the purpose of description, and should not be understood as indicating or implying relative importance. The following introduction provides multiple embodiments of the present application, and different embodiments can be replaced or combined and combined, so the present application can also be considered to include all possible combinations of the same and / or different embodiments described. Thus, if one embodiment contains features A, B, C, and another embodiment contains features B, D, then the application should also be considered to include all other possible combinations containing one or more of A, B, C, D Although this embodiment may not be clearly written in the following content....
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The invention discloses a virtual traffic light control reminding method for digital twin smart city traffic, and the method comprises the steps: constructing a digital twin traffic system based on the actual data information of each road intersection, and distributing virtual traffic lights at each virtual road intersection in the digital twin traffic system; continuously acquiring real-time feedback data of the vehicle, and determining the real-time position of the vehicle in the digital twin traffic system; and when the real-time position reaches any virtual road intersection, lane position information of the vehicle is determined based on the real-time feedback data, a control instruction is generated based on target virtual traffic light signal information corresponding to the lane position information, and the control instruction is sent to the vehicle. According to the invention, in the driving process of the unmanned vehicle, the vehicle can still obtain the actual traffic light information of the road intersection in real time through the virtual traffic light even in a severe environment or under the condition that the visual field of the vehicle camera probe is shielded, and the safe driving of the unmanned vehicle is ensured.
Description
technical field [0001] This application relates to the technical field of automatic driving, in particular, to a virtual traffic light control reminder method for digital twin smart city traffic. Background technique [0002] With the development of science and technology, autonomous driving technology has become a field that many technology companies are eager to research. Unmanned vehicles mainly rely on the unmanned driving system to achieve the purpose of automatic driving, that is, intelligent vehicles that perceive the road environment through the on-board sensor system, automatically plan the driving route and control the vehicle to reach the predetermined target. For unmanned vehicles and urban roads, the control of traffic lights is a difficult point to ensure the safe and efficient driving of autonomous vehicles. [0003] At present, the vast majority of intersections still use traditional traffic light equipment. Due to the differences in the installation positio...
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IPC IPC(8): G08G1/0967H04W4/02H04W4/44
CPCG08G1/096725G08G1/096775H04W4/025H04W4/44
Inventor 廖律超胡志远黄德娟陈德旺邹复民赵钊林梁钰李峥嵘林钰媛朱银添
Owner FUJIAN UNIV OF TECH