Road traffic signal control machine

The communication protocol (instruction and message format) of the road traffic signal control machine is used for the connection between the road traffic signal control machine and the upper computer, the communication of traffic flow information upload, working status inquiry and setting, etc. The embedded software version number is V3.0.

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Parameters

Data frame: The frame structure includes 4 fields: start of frame, data table, check code and end of frame, and the definition meets the requirements

Data sheet: data sheet structure, data link, operation type and object identification meet the standard requirements

On-line procedures: the on-line procedures between the signal machine and the host computer meet the standard requirements

Online: The format of the signal sent by the online request command meets the standard, and the format of the signal sent online query command meets the standard requirements

Traffic flow information: the format of the traffic flow message uploaded by the signal machine meets the requirements of the standard

Signal working status: The format of the response message sent by the semaphore after receiving the upper computer working status query instruction meets the standard requirements; the format of the active upload message after the semaphore working status changes meets the standard requirements

Light color status: The format of the response message sent by the signal after receiving the light color status query instruction meets the standard requirements; when the light color changes, the format of the message sent by the signal automatically meets the standard requirements

Current time: The format of the response message sent by the semaphore after receiving the current time query command meets the standard requirements; the format of the response message sent by the semaphore after receiving the time setting command meets the standard requirements

Signal light group: The format of the response message sent by the signal machine after receiving the signal light group query instruction meets the standard requirements; the format of the response message sent by the signal machine after receiving the signal light group setting instruction should meet the standard requirements

Phase: The format of the response message sent by the signal after receiving the phase query command meets the standard requirements; the format of the response message sent by the signal after receiving the phase setting command meets the standard requirements

Signal timing scheme: The format of the response message sent by the signal machine after receiving the signal timing scheme query instruction meets the standard requirements; the format of the response message sent by the signal machine after receiving the signal timing scheme setting instruction meets the standard requirements

Scheme scheduling plan: The format of the response message sent by the signal machine after receiving the query instruction of the scheme scheduling plan meets the standard requirements; the format of the response message sent by the signal machine after receiving the scheme scheduling plan setting instruction meets the standard requirements

Working mode: The format of the response message sent by the semaphore after receiving the working mode query instruction meets the standard requirements; the format of the response message sent by the semaphore after receiving the working mode setting instruction meets the standard requirements

Signal machine failure: The format of the response message sent by the signal machine after receiving the upper machine signal machine fault query instruction meets the standard requirements; the signal machine automatically uploads the message format after detecting the failure to meet the standard requirements

Signal version: The format of the response message sent by the signal after receiving the signal version query command meets the standard requirements; the signal version change means that the format of the message sent actively meets the standard requirements

Feature parameter version: The format of the response message sent by the signal machine after receiving the feature parameter version query instruction meets the standard requirements; the format of the response message sent by the signal machine after receiving the feature parameter version setting instruction meets the standard requirements

Signal identification code: The format of the response message sent by the signal after receiving the signal identification code query instruction meets the standard requirements

Remote control: After receiving the remote control setting command, the signal machine sends a response message format that meets the requirements of the standard

Detector: The format of the response message sent by the signal machine after receiving the detector query instruction meets the standard requirements; the format of the response message sent by the signal machine after receiving the detector setting instruction meets the standard requirements

This product has been tested by the Traffic Safety Product Quality Supervision and Testing Center of the Ministry of Public Security.