The Software Design Of The Resonant Cavity Hydrogen Concentration Detection

With the progress of society, energy consumption is increasing, the use ofhydrogen energy in social status is increasing day by day, and the ensuing accidentcaused by the hydrogen frequently occurred. Therefore, how fast, effective, accurate,long-term detection of the hydrogen concentration becomes increasingly important. Forvarious disadvantages of the current detection of hydrogen concentration, based on theresonator cavity hydrogen sensor and distributed system architecture, the software of thehydrogen concentration detection is designed and developed. The main content andresults of the dissertation are as follows:1. Firstly, the background and significance of the hydrogen concentration detectionis described, and the research status and development trend of the hydrogenconcentration detection technology is analyzed, the research status of spectral estimationmethod and embedded system is introduced briefly.2. The systems architecture of hydrogen concentration detection is built fordistributed terminal and the need of the various parts of the system is analyzed. Fordetection terminal, based on miro2440BSP package, the transplantation of LCD, SPIdrive, AD-driven, ferroelectric RAM drive, voice-driven, GPRS and Zigbee drive iscompleted, the development of underlying system is realized, the necessary conditionsfor the system application development is provided.3. Based on the Visual Studio2008C#, the software of the resonant cavityhydrogen concentration detection is developed, the software can be divided into thefollowing modules: the main program, data acquisition, algorithms computing, interfacedispaly, alarm, GPRS, protocol encapsulation, Zigbee and ferroelectric RAM. Thefunction of data acquisition, concentration display, voice alarm, data retention and so onis implemented4. Based on the Visual Studio2008C#,the resonant cavity hydrogen concentrationdetection center PC software is designed and developed, which adopted MicrosoftOffice Access database and used Zigbee modules to communicate with terminals, thefunction preservation of terminal data, terminal parameter settings, terminal real-time monitoring and so on is realized. The software is particularly important becauseterminal of the system is distributed. For different parts of the terminal, centrallymanaged, the efficiency of management is greatly improved.5. From the principle of the resonator cavity hydrogen detection, the relationshipbetween the frequency and phase of the hydrogen concentration is analyzed. Themethod of spectrum detection and phase detection is introduced, and simulationexperiment and platform experiment is finished, and its results are analyzed. Finally, thealgorithm based on the resonant cavity hydrogen concentration detection is realized, andthe equivalent circuit experiment is done, the result of the experiment is analyzed.