The automatically monitoring and controlling system using in high mountain relay station, which is used to monitor and control equipments for 24 hours. By this system , the status of equipments could be displayed on the screen in real time , could lighten work-intensity effectively for the watch-keepers , could improve security ability and dependability .This dissertation started with the total aim and the requirement analysis of the automatically monitoring and controlling system , design the total scheme of the system , emphasize analyzing the actualization of the data collection subsystem , the pre-processing subsystem , the monitoring and controlling subsystem , the database and server subsystem , simply explain the actualization of the remote connection , expatiate the actualization of monitoring and controlling software of PLC .This dissertation also discuss the safety measures through research of insist interference , the research of thunderbolt , the research of defending virus and the research of defending hacker and particular design the schemes of the resist interference measures and the preventing thunderbolt measures .
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