Front Communication Subsystem Design and Implementation for a Provincial Local Plant Management Information System
Jianmin Zhang · Journal of Hangzhou Dianzi University · 2008
According to the present status of Zhejiang provincial local plant management information system,this paper gives out the design of front communication subsystem in the center of data and service,which is divided into front-end and task-scheduling server: Front-end receives the task and command messages which are sent by master station and coded by task-scheduling server,and then sends them to the terminals;it also receives the messages from the terminals and sends them to task-scheduling server.Task-scheduling server codes the task and command messages sent by master station to front-end;and it decodes the messages sent by front-end,processes the data from the decoded messages,and saves the data in database or sends them to master station.