Visual camera horizontal adjusting method and adjusting device based on printer

The invention discloses a visual camera horizontal adjusting method and device based on a printer. The visual camera horizontal adjusting method comprises the steps that S1, primary scanning and data sampling are conducted; S2, a laser distance measuring instrument monitors the distance between a camera and a scanning platform in real time; S3, data application is conducted before formal scanning; according to the method, the printing quality and efficiency are remarkably improved through accurate camera position adjustment, firstly, scanning is conducted through a laser distance measuring instrument, distance data are collected in real time, smoothing processing is conducted on the data through a moving average filter, noise interference is effectively reduced, and the data stability is improved; the lifting of the camera is accurately controlled by using a PID control algorithm, the distance between the camera and the scanning platform is always kept in an optimal state, in addition, a Kalman filter is inte