车辆检测系统中通信协议的设计与应用

根据车载系统的设计,提出了主机与分机之间的检测方式及具体的通信协议。首先由主机控制超声波发射机实时向外发射检测编号,使车辆进行有序的排队,解决了多车辆“防碰撞”的问题。然后主机针对已有编号的车载分机,用短距离射频收发机进行数据传输,验证车辆固有信息,进行车辆识别检测。此检测方法受环境的影响微小,可准确地识别车辆信息。

The Design and Application of Communication Protocol In Vehicle Detection System

The detection mode and specific communication protocol between the master part and extension part in-vehicle are presented according to the design of the system.The master part controls ultrasonic transmitter to send out continually the checking number and makes the vehicles queue orderly,therefor solves the“anti-collision”problem of many vehicles.Then the master part aims at the vehicle that has the fixed serial number to verify vehicle inherent information,with short distance radio frequency transceiver for data transmission,then identifies and detects the vehicles.The method is hardly influenced by environment and can identify the vehicle information correctly.