Mechanical garage vehicle searching system and method

The invention relates to a mechanical garage vehicle searching system and method. An ultrasonic parking space detector detects parking space idle state information; when the parking space idle state changes, the ultrasonic parking space detector sends a licence plate capturing identification signal to a video parking space detector by means of wireless communication; and the video parking space detector identifies an occupation situation of parking spaces by vehicles, carries out picture capturing, identifies a vehicle licence plate number, and determines state information of a mechanical parking space. On the basis of combination of the ultrasonic parking space detector and the video parking space detector, the mechanical parking space state information in the vehicle searching system is determined; and the working pressure of the video parking space detector can be reduced. 本发明涉及种机械车库寻车系统及方法，通过超声波车位检测器检测车位空闲状态信息，当车位空闲状态发生变化时，超声波车位检测器通过无线通讯方式向视频车位检测器发送车牌抓拍识别信号，视频车位检测器识别层车位车辆的占用情况，进行图片抓拍，识别车辆车牌号码，判别机械车位的状态信息，