Intelligent control method for self-adapting traffic signal light and apparatus for implementing same
A technology of traffic signal lights and intelligent control, which is applied in traffic control systems, control traffic signals, traffic control systems of road vehicles, etc., can solve the problems of high construction cost, high failure rate, high maintenance cost, etc., and achieve strong fault tolerance, anti- Catastrophic effects with low requirements for vehicle detection equipment
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Embodiment 1
[0046]As shown in Figure 1, when entering the current lane to pass, the green light is on. The regulation step 1 is the initial action. In the regulation step 1, the single-chip microcomputer collects the vehicle presence / absence signal of the crossing at both ends of the current lane from the input interface. Regulatory step 2 judges whether there is a car or no car. Only when there is no car at the crossing at both ends of the current lane, it is judged that there is no car in the lane. If there is a car, go to step 8; if there is no car, go to step 3. After the control step 3 is completed, add one to the counter of the number of times of continuous advance car-free times. Regulatory step 4 judges whether the countdown time of the current lane is greater than the minimum passing time, that is, the minimum set time to ensure the passage of pedestrians in another lane (red light), if yes, turn to regulating step 5; otherwise, wait. Regulating step 5 judges whether the number ...
Embodiment 2
[0065] As shown in Figure 3, the crossing vehicle detectors arranged at the four crossings provide signals of whether there is a car or no car within a certain range of the crossing (that is, a certain distance behind the stop line of the pedestrian crossing), thereby obtaining the presence / absence of cars at the four crossings. In the no-car state, as known technology, the power supply circuit provides the voltage required for operation to the single-chip microcomputer 14 . There is a car or a car-free state signal provided by the crossing vehicle detector to access the input interface circuit 16, and the single-chip microcomputer 14 is connected to the input interface circuit 16 through the bus 102. As known technology, the bus 102 includes control signals, port address signals and data signals. During the passage of the green light passage, the input interface circuit 16 is used to monitor and read the vehicle / car-free status signals at the crossings at both ends of the lane...
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