QIU Yue，SUN Hui，LU Yang
（College of Electrical Engineering，Zhejiang University，Hangzhou 310027，China）
Abstract：Aiming at solving the safety problems of drinking water from straight drinking fountains and reducing the difficulty ofmanagement，a remote control platform for straight drinking fountains based on the technology of GSM and Internet was proposed. Theupper machine module，communication module and lower machine module were designed respectively. A website was designed to achievea visual and user-friendly interface for operation and information feedback. By taking the advantages of GSM and Internet，a means ofcommunication combining SMS and network was designed and used for remote communication. A kind of integrated detection module ofdrinking water quality based on the method of measuring water conductivity by double frequency sinusoidal signals was designed.Combining the design of each sub-module，the functions of water quality monitoring and automatic control were realized. The resultsindicate that，people can achieve many functions to control and monitor the straight drinking fountains on the platform，such as monitoringthe water quality，obtaining the warnings，real-time maintenance，information management and remote control，etc.，to ensure the safety ofdrinking water.
Key words： global system of mobile communication（GSM）； Internet；straight drinking fountains； method of measuring water
conductivity by double frequency sinusoidal signal；total disolved solid（TDS）；remote control