Internet-based Remote Gate Microcomputer Monitoring System

With the development of china economic reform , the need of water is increased gradually , the attemper of water resource in reson become an necessary choice . Traditional monitoring technique can't satify the new application in concentratedlyjnonitoring in many rivers ,lakes and reservoirs . So , it is very important to deseign proper monitoring system for strobe to ensure the hign efficiency attemper of water resource .As a new generation of monitoring system , long_distance monitoring system based on internet replaces the traditional nearly mechanic handling mode . Through internet network , you can control all the monitoring devices distributed over large range , such as rivers , lakes and reservoirs etc . In the user's control room , you can know the process of every strobe and water level in time , realizing the real_time and flexibility of long_distance monitoring ,In this paper , we complete some reseach as follow : firstly ,we lay out the hardware plan of long_distance strobe computer monitoring system based on internet , which includes three sub_systems : internet signal system , telephone signal system ,below_computer control system . By using internet communication technique and telephone communication technique , all the monitoring devices are integrated . Secondly .based the construction of hardware . we introduce in order the deseign and realizing of above_computer software ,control software of MODEN and below_computer control system . In the deseign of above_computer software , based the requirement analysis about the whole system ,we determine the software deseign of monitoring system , such as function modules and database structure . During the software deseign of above_computer ,we introduce user administration , interface administration ,client_server communication , and the realizing of monitoring handles , information query , help and the deseign of database in order . During the deseign of control software of MODEN , we introduce in detail a few function such as initialization , dialing , responsion and hanging up etc , deseign and debug the communication procedure . there are two modes when MODEN work nomally :cammand mode and connectting mode , cammand mode is the mode that deal with the function setting ,connectting mode is the mode that deal with the data transmit. Before the connectting between MODEN and other equipments ,It works at the cammand mode ,the cammand that is send to MODEN is used to set or manipulate the mode , after the connectting between MODEN and other equipments, it works at connectting mode , at that time , the cammandsend from the computer is send to another computer which will pass the MODEN and telephone line .the MODEN control cammand is called "AT" cammand , ALL the control manipulation is realized by sending the ASCII character to MODEN , after the MODEN received the "AT" cammand , it firstly judges the cammand , secondly,it analyses and executes the cammand , finnally, it executes a response by sending back a ASCII character ,during the deseign of below-computer ,we introduce in detail the deseign of system hardware and system software , below-computer system hardware and system software , below-computer is made up of microchip collecting and controlling system ,which finish the strobe and water level data collection ,display and disposal ,deal with the communication with the above-computer ,the microchip is the centre of data dealing with , the peripheral equipments are made up of data collecttion module , control cammand input module , display module, execute output module ,and long-distance communication module . During the deseign of below_computer ,we introduce in detail the deseign of system hardware and system software .