Two-dimensional code automatic correction system and method in packaging process

The invention provides a two-dimensional code automatic correction system in the packaging process. The system comprises an encoder, an electronic induction eye, a main camera, a main detector, a local server, a waste kick signal box and a waste kick device. The encoder is used for calculating the physical distance between the electronic induction eye and a camera photographing point. After the electronic induction eye installed on a conveying belt senses cigarettes, the signal indicating that cigarette boxes enter a detection area is sent to the main detector, and the main detector is used for data comparison and sends a detection result to the waste kick signal box. According to the method, by correcting and inspecting two-dimensional code identifications of the cigarette boxes for the last time, it is guaranteed that the two-dimensional codes on the cigarettes of each packet and each carton in the market are unique, real and effective.