Exposure control system and method of exposure equipment

Abstract

The invention discloses an exposure control system and method of exposure equipment. The system comprises a sending card, a data processing board, a laser device driving and control board and a motioncontrol board, wherein the data processing board comprises an FPGA controller and an embedded processor embedded in the FPGA controller, the sending card receives data information and instruction information sent by an upper computer, the embedded processor processes the data information and the instruction information and outputs a laser device signal and an equipment motion signal through the FPGA controller, the laser device driving and control board controls a laser device to generate a laser beam according to the laser device signal, and the motion control board controls exposure equipment to execute corresponding actions according to the equipment motion signal. According to the invention, data processing and motion control of the exposure equipment are separated, so that the functions of the board card are independent, and faults can be conveniently positioned when faults occur.

Description

technical field [0001] The present invention relates to the field of exposure technology, in particular to an exposure control system and method for exposure equipment. Background technique [0002] Exposure equipment is a mechanical device that uses light of a specific wavelength to transfer image information on a film or other transparent body to a surface coated with a photosensitive material, including CTS (Computer To Screen, screen-to-plate) equipment, CTP equipment , roll-to-roll equipment, etc. Among them, CTP (Computer to Plate, direct plate-making machine) equipment is an optical-mechanical-electrical integration equipment for digital printing plate imaging. It is controlled by a computer and an embedded system, converts text and images into digital signals, and uses this digital signal to drive The laser scans the image on a special plate, and then develops it with a developer to generate a printing plate. It is divided into four categories: inner drum type, oute...

AI Technical Summary

Problems solved by technology

Some current exposure control systems use a large integrated circuit CPLD (Complex Programmable Logic Device, complex programmable logic device) control system. Scope is a digital integrated circuit in which users can construct logic functions according to their own needs. It has the disadvantages of complex circuit structure, large board-level structure, large space occupation, and inconvenient planning and wiring of various components.

There are also some exposure control systems that use a control system composed of MCU (Microcontroller Unit, Micro Control Unit) and FPGA (Field-Programmable Gate Array, Field Programmable Gate Array) controller, which has a complex board-level structure and high cost. Shortcomings, and this type of control system uses the same control board to complete the data processing and motion control functions, making it impossible to accurately locate when a fault occurs, that is, it is impossible to determine whether there is a fault in the data processing circuit or the motion control circuit Partially faulty

In addition, there are still some exposure control systems that adopt a split design for the emission card and the control board, which is likely to cause the disadvantages of high cost and large space occupation of the control system.

Images