Traffic light control method, device and system
A technology of a control device and a control method, applied in the field of communication, can solve problems such as inability to flexibly control traffic, and achieve the effect of improving efficiency and effect
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[0074] Example one
[0075] Assuming that each information collection node at an intersection uses an omnidirectional antenna, the stable communication distance with the vehicle communication terminal (defined as the communication radius) is R, and the information collection node can be installed in the motorized right-hand lane of the intersection at a distance R from the intersection, such as image 3 As shown, in this way, the vehicle information within 2R of the motor lane from the intersection in this direction can be collected, and the information collection node transmits the vehicle passing information to the traffic light control device.
[0076] Take an intersection containing straight and left control information as an example, such as Figure 4 As shown, the specific implementation steps are as follows:
[0077] Step S401: On a road heading to an intersection, in a prohibited state, the intersection information collection node on the right side of the right lane of the roa...
Example Embodiment
[0091] Example two
[0092] In this embodiment, an application scenario of a system including a control management center is given. In this application scenario, set the priority for each vehicle. The priority of ordinary vehicles is set to 1, and the priority of ambulances, firetruck, police cars or some vehicles approved for temporary emergency applications is set to 2. When a high-level vehicle passes, if the information collection node at the current intersection recognizes the vehicle identification information of the vehicle, it will communicate with the traffic light control device, immediately switch the indicator light of the current direction to green, and the control and management center will collect the information according to the node The transmitted direction information of the vehicle determines the next intersection it will pass through, and sets the next intersection as a green light in advance to ease the passage of vehicles in front of it to improve the effic...
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