Japan has invented many rescue robots , most of which have stood the test in earthquakes and other natural disasters. The crawler rescue robot invented by the police station in Yokohama, Japan, can directly swallow people into the machine and then take them away from the danger zone, effectively reducing 60% of casualties. Because the whole robot was like a rectangular box when it was just developed, this robot was also called a crawler coffin. Later, after various tests and improvements, cameras, robotic arms and various sensors were added. The sensor inside can also detect the injured person's injury. Later, because of the remarkable rescue effect, many fire brigades and security departments in Japan were equipped with this robot. The robot that appeared near the nuclear reactor after the Fukushima nuclear leak in Japan was based on this robot change. In addition, in order to prevent the crawler rescue robot from being able to drill into a small gap, Japan has also invented a snake-shaped robot to work with it, which has greatly improved the progress of various rescue work. V2G Charger, V2G Bidirectional Charger V2L Charger Shenzhen Hongjiali New Energy Co., Ltd. , https://www.hjlcharger.com