关键词: 微波通信, 视频监控小车, 无线电技术

Abstract: The long distance radio video monitoring system is dependent on the internet so far, therefore, has
environment limitation. We have developed a kind of radio video monitoring system which is in car and can work
in the enviornment without network. This system controls the car and camera‘s movement and position through the
microcontroller by radio so that we can get the maximum visual angel, at the same time, the system collects
image information in the surroundings using the camera OV7670 driven by FPGA(Field-Programmable Gate
Array), transfer the video signal to receiver in the 1. 2 GHz band in order to display the video on the host
computer. Test shows that the car runs stably, can monitor surroundings in narrow space, transfer video data by
radio successfully, with a clear and stable picture, and a long distance. This system’s transfer distance is up to
25 m indoors and 80 m outdoors.

Key words: radio technology, microwave communication, video monitoring car