Digital photograph automatic exposure unit for X-ray production apparatus and control method

This invention relates to medical appliance technique field, which in detail is an automatic exposure control system of the X-ray apparatus and comprises the hardware devices and software control programs, wherein, the hardware device is connected with CCD cameral, image collecting card, high-pressure generator through the digital photograph ABC control module and communicates with the system software. The control module runs by certain time sequence and is based on the frame synchronization signals sent by the cameral and completes the single frame photography and time sequence photography. The ABC control module is centered on the micro controller and gets the control information from the system software and controls the CCD cameral, high pressure generator, image collecting card according to the time sequence requirement of different work modes and completes the automatic exposure.