The Designed And Implementation Of The Embedded Control Software For Copier

In recent decades,the copier has been widely used with the rapid development of computer technology.At the same time,the users have a higher demand for print speed,quality and the function.However,the research on digital duplicator technology is still at an early stage and the products used in our country are almost come from abroad and have no independent intellectual property rights.In terms of economic and national security,the research on the localization of copiers has become a top priority.In this thesis,the embedded control software of copier is designed based on "ARM+embedded Linux operating system" platform by analyzing the functional requirements and architecture of digital copier control system.After analyzing the existing technologies in GPMC bus drive,we implement development of GMPC driver in EDMA mode.It successfully achieved much higher data transmission speeds between the embedded system and the logic hardware system.In order to solve the the demand of copiers with complicated functions and numerous working conditions,we design a control system based on the technology of multithreading and finite state machine under a Linux platform.What's more,it has realized the functions of printing,copying and scanning.According to the requirements of the security copier,the security audit system of copier is realized by using CGI technology.Audit system provides equipment login,fingerprint authentication,work log,authority control and other security management functions to ensure the traceability of security incidents.The test shows that the modules work well and meet the expected results.The system was successfully integrated into the embedded operating system of the copier.This thesis takes advantage of the embedded system's character which includes low cost,strong function and good expansibility,to develop its own embedded copying control system.On a deeper level,it improves the capacity of information assurance on office equipment.At the same time,the technology and method introduced in this thesis have certain reference value for the design of related equipment.