Design And Realization Of Gas Moitoring System In Coal Mine

Mine are obscurity geographically and tortuous topography.It is very difficult and also costs too much to set up the networks if a wired net is used. The maintenance is expensive too.We set Ningxia Gas of Coal Mine Safty Moitoring as an example.Explain the selection of the networks for the Mine Gas Safty Monitoring System.We used Unicom CDMA1x wirless digital communications as the digital delivery networks for Mine Gas Monitoring System,the adoption Vpn service method, carry out to deliver a privately data on the public net, reduces the enterprise the long-distance access expense,And, insured a data to deliver of stability, veracity and safety."The Gas of Coal Mine Safty Moitoring System "is a The National Safty information Management System sub- system. While we carried on the design to the system ,the analysis,design and work of implement were finished by adopting the ideas of system engineering.The system realized the information to collect,the information deliver,information processing,information saving and information output in the foundation,completed each monitor point of Real-time monitor,give an alarm, report forms and the sketch curve show etc. function.To develop the system,We used SQL Server from Microsoft Inc., Designed the partial modules database table, and has produced between various tables's Relations. We adopted three structure mode of the layer C/S, promised the safety of the system, reduce the data runoff on the network, raise the reflection speed of the system.After running in Coal Mine,it has been proved that the system is applicable, practical , advanced and credible…etc., for guarantee the coal mine safety to produce to have to important function.