Realization of embedded diagnosis system for air-conditioners and refrigerators
Yih‐Her Yan, Chun-Hui Wu, Wei-Yu Lai · 2010
The main purpose of this study is to establish a diagnosis system for air-conditioners and refrigerators by means of the programmable system on chip (PSoC) and data mining techniques. This study employed the decision tree algorithm to discover the implicit rules of air-conditioner and refrigerator troubles from examination data that is composed of normal and fault information. A diagnosis model was then extracted and its decision rules were written on the PSoC. This system has an automatic adjustment mechanism for diagnosing various types of air-conditioners and refrigerators and has the capability of communicating with computers via RS232 interface. Finally, the interface, designed with LabVIEW language, of the proposed system can monitor 256 air-conditioners simultaneously by using only one computer. In addition to providing repair methods for troubleshooting, this interface also integrated multiple functions including data saving, network linking, data querying, and warning message.