Intelligent traffic light system based on FPGA and control method thereof

Abstract

The invention discloses an intelligent traffic light system based on FPGA and a control method thereof. The intelligent traffic light system comprises a PC, an image processing module, a display module, a clock crystal oscillator, and a communication module. The image processing module comprises a CMOS image sensor, a SDRAM, and a FPGA chip. The communication module comprises an Ethernet controller and Ethernet. The data transmission between the FPGA chip and the PC can be realized by the Ethernet controller and the Ethernet. The clock crystal oscillator is used for the system timing, and a countdown timing display module can be used for the display of the time. By comparing with the method adopting the manual control or other control units, the method adopting the FPGA individually for the processing and the control advantageous in that the structure is simpler, the transplantability is good, and the flexibility is good, and then the whole traffic light system is compacter and more effective. The three-frame difference method is adopted to determine whether the vehicles queue up, and the calculation amount is less by comparing with the background subtraction method and the optical flow method, and therefore the speed is fast, and the requirement on the real-time performance can be satisfied, and then the adaptability is strong.

Description

technical field [0001] The invention relates to an FPGA-based intelligent traffic signal light system and a control method thereof, belonging to the technical field of public transport facilities. Background technique [0002] With the development of the city, although the roads will be built wider and wider, there will be more vehicles on the road. During the peak hours of commuting, there are likely to be a large number of vehicles queuing up in the same lane going straight at the traffic intersection, while those turning left are less queuing, which will lead to an unreasonable allocation of resources. Since the traffic lights were invented and put into practical use, with the continuous development of electronic technology, the lights have been continuously improved and more functions have been added to make them more intelligent. However, most of the traffic lights today simply perform red, green, Green lights, turn and straight instructions and countdown display, lane...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the deficiencies in the prior art, the object of the present invention is to provide a FPGA-based intelligent traffic light system and its control method, which can alleviate the problem of traffic queuing and congestion according to real-time road conditions, and this solution simplifies the structure of the video image processing system, It is more convenient and flexible, which improves the speed of image processing and realizes real-time processing and judgment of images

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