Protocol Architecture of Ring Coil Vehicle Detector
Each vehicle detector should have its own address to distinguish between each other.
The way the data is uploaded is generally a response, that is, the outdoor system (vehicle detector) does not actively send data until the indoor system (monitoring center) issued instructions to collect data. Vehicle detectors and monitoring center communication commands are usually divided into two types of query and set.
The query class is usually the current working status, fault and so on, and can be classified according to the type of car length pre-set different types of traffic processing; set the class command is to adjust the parameters of the detector to adjust, such as time , Car length classification and so on. Outdoor system response and the indoor system to send the settings, query orders to do real-time response, recommended ids norms in the data link protocol definition.
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