Bus signal priority triggering determination method based on virtual electronic fence
An electronic fence and signal priority technology, which is applied in the traffic control system of road vehicles, traffic control systems, instruments, etc., can solve the problems of increasing investment, achieve the effects of small calculation, real-time judgment, and saving hardware and labor costs
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[0040] The virtual electronic fence is set on the electronic map, and is generally a polygon. Such as figure 1 As shown, there are 4 types of electronic fences, namely, the road section electronic fence 1, the intersection electronic fence 2, the stop electronic fence 3, and the field station electronic fence 4. The polygonal area enclosed by the virtual electronic fence is the electronic trigger area, and the corresponding bus entry strategy is preset. According to the different driving behavior of the bus in the electronic trigger zone, it is judged whether it is necessary to send the bus signal priority.
[0041] The coordinate system used in the present invention is as follows: the intersection o of the central meridian and the equator is used as the origin of the coordinates, the projection of the central meridian is the x-axis (north-south direction), and the projection of the equator is the y-axis (east-west direction) to form an xy coordinate system , The positive x-axi...
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