Design Of Network Service Module

This paper is related to a subfunction module of the Frequency Managing System(FMS), i. e. the Network Service Modules. Firstly all of the function requirements are analyzed for the module, then a principle statement and main algorithms are given based on correlative technical analyses and scheme demonstration. Finally, a detailed introduction is made to the program development.FMS includes several control centers. Each of them includes a main operating seat and several ordinary operating seats. Every seat is not fixed in a local area network(LAN), and so can be landed dynamically. The ordinary seats are all controlled by the main seat: disposed by the latter before landing the system and monitored by the latter during the running process.As a subfunction module of FMS , the Network Service is an inseparable important part of the system, which is divided into five secondary subfunction modules: Network-Configuration , Network-Monitor . Database Tele-Inquiring, Information-Sending, and Information-Receiving.Network-Configuration module implements the function: searching automatically for the needed information, including the hostnames and IP address of the computers existed in LAN. Network-Configuration is implemented by the main operating seat. The main operating seat allocates seat numbers and assigns functions for the ordinary operating seats before they land the system.Network-Monitor module implements the function: monitoring promptly the equipment, the ports , the communication, and the connections of all the seats in a center system and leaving network log. It can also snatch the screen, and watch the running interfaces of all the ordinary operating seats.Database Tele-Inquiring module provides the user with a friend interface. The users can choose different conditions to inquire the database of other centers and add the inquiring results to the local database.Information-Sending module and Information-Receiving module can transfer information between control centers or between operating seats of a center. The modules provide other modules with sending and receiving interfaces and provide users with friend user interfaces to deal with the receiving information.