Remote monitoring system of performance of solar water heater based on WCF

FENG Jianwei， DING Qiang， HUANG Guohui， JIANG Zhoushu
（Institution of Automation，Hangzhou Dianzi University，Hangzhou  310018，China）

Abstract： In order to solve  the problems of the current solar water heater testing system need technicist to select the data， the poor ability of automatic calculation and the single representation of performance parameters,  the Windows communication foundation（WCF）technology was applied to the remote data acquisition.After the analysis of the principle of solar water heater performance testing and WCF remote communication， the relation between local data capture system and data center was established ，combining with the .Net development platform， the solar information remote monitoring system based on WCF was developed. The design and realization method of the system was  presented. The data from the existing testing system was sampled， on the basis of this， many features were developed, such as the  calculation， data display， data for classing and saving， reports generation and so on. Performance parameters such as solar heat gain and heat loss coefficients can be calculated automatically. The results indicate that the system can sample the data steadily and calculate the parameters precisely， it also can seamlessly integrate into the current testing system， help to improve the efficiency of testing.
Key words： performance of solar water heater; remote monitoring system; Windows communication foundation（WCF）; parameter calculation;