Central Air Conditioning System Of Remote Monitoring And Fault Diagnosis

Fault is unavoidable to appear in air conditioner operation. With the automation and complexity of the air conditioner, once fault appears, it usually needs technical staff and relevant experts in different places to monitor and diagnose in Scene. It is inevitable to increase financial and personal burden. At the same time fault can't be got rid of in time.With the flourishing development of Internet technology , it offers to us the new means for the fact that we solve above-mentioned problems. FDD—fault detection and diagnosis in Long-range monitoring of air conditioning use some knowledge on computer science , communication technology and FDD. It realizes to move data instead of people .This text narrates the function of every part of the central air conditioner system and foundation of the characteristic first, then make some research on FDD and long-range control base on .1 long-range control systemThe paper uses client/server monitoring system, and make use of VC programming to realize. The client asks for the service to convey such information as the data , vision gathered .The client deals with the information. In addition, it uses the mixed system of encrypting of RSA,AES and SHA to realize the security of the long-range information transmission.2 Fault detection and diagnosisThe paper uses the neural network on the basis of the various of method in FDD. Among every neural network model, we select CMAC model according to its better velocity andcapability. In every component of the central air conditioner system, we select the main air treatment unit. We introduce 7 possible fault of air treatment unit briefly at first, then carry on emulation through MATLAB.Finally, the paper has realized long-range control system of central air conditioner, and deal with 7 kinds of fault of the unit to the air Successfully.