Design And Implementation Of Buried Pipe Leak Detection Node Based On Wireless Sensor Network

With the rapid development of wireless communication technology, wireless sensornetworks are used more and more widely in all aspects of society. Based on the widelyused regular sounding, the related detection method of water pipe leak detectiontechnology has high cost, low precision, reliability issues such as limited, the buriedpipe leakage detection scheme based on wireless sensor network. The scheme hasthe characteristics of leak automatic detection and wireless upload memory leakdetection, will be expanded to pipe surface. On this basis,the low power processor ARM9chip as the core chip design of wireless sensor node, the node from the data acquisitionmodule, a microprocessor module, LCD display module, wireless transmission module, dataacquisition module mainly complete the vibration signal of leakage of water supply pipes ofthe acquisition, amplification and filter processor module will be enlarged; signal by A/Dconversion by using fast FFT algorithm, spectrum analysis; the display module for displayingthe spectrum signal acquisition; wireless transmission module uses433M ISM band forwireless transmission and wireless communication function using low powerSimpliciTI protocol to design the node and gateway. In addition, also extends theJTag port, USB port and other peripheral interface.The detecting node based on sine wave, Fang Bo and mixing signal detection andwireless transmission distance and other aspects of the test, the test results show that the nodecan realize the signal leakage detection and wireless upload to the function of the gateway ofwireless sensor nodes, meet the design requirements, and has the advantages of convenientdetection, feasibility.