Traffic signal synchronous and asynchronous control system

Abstract

The invention provides a traffic signal synchronous and asynchronous control system which comprises a traffic signal control card. The traffic signal control card comprises a control card shell, an asynchronous control mainboard, a Wi F i module, a synchronous control mainboard, a power supply, a network interface and a WiFi antenna. The asynchronous control mainboard, the WiFi module, the synchronous control mainboard and the power supply are fixedly installed in the control card shell. The power supply is electrically connected with the asynchronous control mainboard and the synchronous control mainboard, the asynchronous control mainboard and the synchronous control mainboard are electrically connected through a network interface, and the synchronous control mainboard is electrically connected with the WiFi module. In order to integrate the advantages of a synchronous control mainboard and an asynchronous control mainboard at the same time, the synchronous control mainboard and the asynchronous control mainboard are combined in one device, and a single-chip microcomputer chip is added for assistance, so that when the synchronous control mainboard is not synchronously updated in real time, and the asynchronous control mainboard calls the program originally stored in the asynchronous control mainboard through the single chip microcomputer chip for display.

Description

technical field [0001] The invention relates to the technical field of traffic signals, in particular to a synchronous and asynchronous control system of traffic signals. Background technique [0002] Nowadays, there are conflicts in the update of the signal display screen and power supply. Synchronization is to solve the problem of video playback, which can be completed together with the receiving card. Asynchronous is to solve the problem of replacing the control computer, supporting synchronization, and outputting relevant data for synchronous display. We can continuously output and exit the content and tasks we want to synchronize on the platform we built, and also added a traditional wired to wireless working mode, which solves the simple synchronization, asynchronous, and network independence problems. When the synchronous control card is used alone, it cannot be separated from the real-time update transmission on the PC side. When the asynchronous control card is used...

AI Technical Summary

Problems solved by technology

[0002] Nowadays, there are conflicts in the update of the signal display screen and power supply. Synchronization is to solve the problem of video playback, which can be completed together with the receiving card. Asynchronous is to solve the problem of replacing the control computer, supporting synchronization, and outputting relevant data for synchronous display. We can continuously output and exit the content and tasks we want to synchronize on the platform we built, and also added a traditional wired to wireless working mode, which solves the simple synchronization, asynchronous, and network independence problems. When the synchronous control card is used alone, it cannot be separated from the real-time update transmission on the PC side. When the asynchronous control card is used alone, it can only display a single simple picture and a simple change form, and can only play a fixed section of the picture in a loop. In order to make the advantages of both Both, the present invention proposes a synchronous and asynchronous traffic signal control system

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