| Preventing Fire is Significance as the chief research of the fire protection. Besides the fire caused by natural gas is even more harmful. To control and to put out it is very hard, so it is one of the very important researches about fire. In this paper, the system of detecting natural gas has been researched. At the end of paper, the design about detecting natural gas based on RS485 bus, which can be used in Community and High -rise building, is proposed as a pilot study.The sub module is taking the C8051F330 as main processor, combining Gas-sensing resistor to detect the natural gas. Meanwhile take the temperature sensor as the advantage in the C8051F330 to correction the detecting result. In this way, system can reduce the rate of alarm by false. The operation interface is designed by LabVIEW, which can monitoring the many sub modules at the same time. |
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