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Road traffic special duty control machine and control method

A technology for road traffic and controllers, which is applied in traffic control systems, traffic control systems, instruments, etc. of road vehicles. Ensuring traffic efficiency and safety

Active Publication Date: 2014-03-05
连云港杰瑞电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the difficulty and high cost of adding a special service control function to the existing road traffic signal controller, and provide a road traffic special service with universal, efficient, simple operation, and low-cost extended special service control functions. control machine

Method used

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  • Road traffic special duty control machine and control method
  • Road traffic special duty control machine and control method
  • Road traffic special duty control machine and control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1, with reference to figure 1 , a road traffic special service control machine, the special service control machine contains a power supply and a control unit inside, the control unit is respectively connected to the drive output unit, RS485 communication interface, drive input interface, and drive output interface; the RS485 communication interface is connected to an external wireless communication module , to receive special service control commands; the drive input interface is connected to the drive output of the road traffic signal machine, and the drive output interface is connected to the road traffic signal lamp.

[0017] In application, through the cooperation of external wireless communication module and wireless remote control special service control equipment, the purpose of adding special service control function to intersection signal machine and signal lamp is realized. The control unit, drive output unit and power supply are installed in the m...

Embodiment 2

[0019] Embodiment 2, with reference to Figure 2-4 , a method of applying the road traffic special service control machine described in Embodiment 1 to carry out road traffic special service control: when the special service control machine does not receive a special service control command, it keeps the road traffic signal machine to have control over the intersection signal lights ; When the special service control machine receives the special service control command, the special service control machine takes over the control of the road traffic lights from the road traffic signal machine, enters the special service control work mode, and the road traffic lights at the intersection are controlled by the special service control machine to turn on and off; When receiving the special service control end command, the special service control working mode is stopped, and the control right of the road traffic signal lights at the intersection is handed over to the road traffic signa...

Embodiment 3

[0025] Embodiment 3, in the road traffic special service control method described in embodiment 2: the special service control machine adopts a smooth transition mode when entering the special service control mode and ending the special service control mode, so as to avoid the influence of the special service control on road safety; The smooth transition method is as follows: the special service control machine completes the learning of the control scheme of the signal machine by detecting the light state change of a color signal light in each group of signal lights, and realizes a smooth transition.

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Abstract

The invention provides a road traffic special duty control machine which includes a power supply, a control unit, a drive output unit, an RS485 communication interface, a drive input interface and a drive output interface. The RS485 communication interface is connected with an external wireless communication module and used for receiving a special duty control command. The drive input interface is connected with the drive output interface of a road traffic signal controller, and the drive output interface is connected with a road traffic signal light. According to the road traffic special duty control machine, special duty control of traffic signals at the current intersection can be achieved by receiving the special duty control command transmitted by the wireless communication module. The special duty control machine can provide a wireless remote control special duty control function for various models of the road traffic signal controllers. The special duty control machine includes a simplified light state detection function unit used for detecting control schemes of the road traffic signal controllers, and smooth transition can be achieved in the scheme switching process, and traffic efficiency and traffic safety are guaranteed.

Description

technical field [0001] The invention relates to an urban road traffic signal control device, in particular to a road traffic special service control machine and a control method capable of realizing intersection traffic signal lights according to wireless special service control commands on the premise of retaining the original road traffic signal control machine. Background technique [0002] With the continuous increase of urban traffic pressure, in order to ensure that special vehicles such as ambulance, firefighting, emergency rescue, duty, and public transportation can reach their destinations in a timely and safe manner, the special service control function has been gradually popularized and applied. To realize the special service control function, the road traffic signal controller must support the special service control function, but the road traffic signal controller installed in many cities does not support the special service control function, the purpose can be a...

Claims

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Application Information

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IPC IPC(8): G08G1/087
Inventor 苟心海高超沈辉焱
Owner 连云港杰瑞电子有限公司