With the rapid development of automatic guided vehicle (AGV), various navigation methods and technologies have emerged, such as magnetic stripe navigation, magnetic nail navigation, visual navigation, laser navigation, fluorescent navigation, SLAM navigation, etc. Usually, AGVs are controlled by computers, and the activity area does not require fixed devices such as tracks and support frames. Therefore, their driving path can be flexibly changed according to different needs, and is not limited by the site, roads, and space.