Large LED Electronic Screen Information Releasing Technology And Its Application

This paper attempts to study the application of information releasing style based on LED displaying board and network in college teaching management and shipyard producing management.In colleges,to maintain the teaching order,and the characters of teaching management determines that the department of teaching management has much information to release to faculties and students. There are some defects to do it with traditional blackboard and paper,which even impacts the teaching order. In shipyards,it's developed internationally to integrate CAD,CAPP CAM and so on. And it has gained many achievements. But all of them are virtually identical independent. In order to use them efficiently,they must be linked. Information delivering is just the bridge among them. Moreover,there is much common information to release to the staff during the producing procedure in shipyards. So this paper introduces the study and development of college's teaching managing information releasing system. Based.on it,the shipyard's producing and managing information releasing system is discussed.The working principle and realization of large LED electric screen are introduced. On hard design,three CPU cooperate to improve the stability of communication and speed of refurbishing screen. On soft design,compiles database program with OLE DB;realize the DB querying program with FoxPro;improves the slow speed in communication with multi-thread;Controls the releasing of information with working-table and releasing-table,develops the information releasing columns. The application can control the releasing of text,table and picture information,can also query database after connected with it. Users have accepted this system.According to information releasing and subjects,using network and LED electric screen,this paper provides the model of shipyard produce and management information releasing system,which releasing information to outer subject with internet,to inner department with LAN,to staff in common place with LED electric screen. So this paper also discusses the function of network will perform in shipyard. Briefly introduces the establishment,management and maintenance procedure of network,make base for using it in shipyards.