Affected by the epidemic, with the increase of human costs, intelligent self-service terminals have attracted much attention in the industry, and the demand for supermarket self-service cashier, intelligent container, self-service government service terminals, shared self-service charging terminals and other terminals continues to rise. The birth of intelligent self-service terminal industry has greatly improved consumers' shopping and service experience, and brought great convenience to our lives. However, traditional terminals are limited by time, space and technology, resulting in increasing operating costs.