说明：  本文研究的移动式视频监测装置是一种遥控机器人，可以在管道等狭小空间作业，在许多领域有广阔的应用前景。
(the foreign product is expensive, the traveling equipment for video inspection is remote ntrolled robot which can work in narrow space, such as pipeline, and its prospect of application is wide in many places. )