射频模块技术在车牌识别系统中的应用

Application of Radio Frequency Module to Car License Plate Recognition

基于车牌识别原理,提出一种新的车牌识别方法。将单片射频收发芯片nRF905应用到车牌识别系统中。并采用ShockBurstTM工作模式,自动处理字头和CRC(循环冗余码校验),使用SPI接口与微控制器通信,配置方便。该系统具有识别精度高,抗干扰能力强,通信速度快,检测距离远等特点。

Based on the theory of the car license plate recognition, a new method of car license plate recognition was presented. Radio Frequency Module was applied to the system of the car license plate recognition for the first time. The mode ShockBurstTM was adopted, which could deal with the head of the byte and CRC automatically. The SPI interface was used to communicate with the controller of the microcomputer. This system has such advantages as faster identification, stronger anti-jamming ability, and longer distance of communication.