The most commonly used recording devices in surveillance systems are civilian video recorders and long-delay video recorders, which are easy to learn and video tapes are easy to store and purchase. Different from home video recorders, time-lapse video recorders can work for a long time, can record images for 24 hours (using ordinary VHS video tapes) and even hundreds of hours, can connect alarm equipment, receive alarm signals to automatically start recording, can superimpose time and date, and can be compiled Video recorder automatic recording program, select the video speed, video tape is automatically stopped after the end or rewind recording ... ... Although the performance of the time delay recorder is outstanding, but expensive, and the current resolution is not very high, the image is also in the time-lapse video Lost part of it, the playback image is a jump.