Abstract：In order to achieve wireless monitoring of hydraulic mechanical performance of hydraulic turbine, a hydraulic turbine characteristic parameter monitoring system based on Android was presented. STM32 was used as core to build the lower machine of hydraulic characteristic parameter monitoring system,acquiring inlet and outlet pressure through A/D conversion,and acquiring the numerical value of flow,torque and speed in the manner of measuring frequency. STM32 conducts preliminary processing of data and shows them on the TFT LCD screen,simultaneously transfers data to the upper machine and Android phone respectively through serial port or Bluetooth. The upper machine is programmed by Qt,aimed at displaying real-time data,drawing relative curve as demand,as well as generating report diagram,the feature of cross-platform of Qt makes it easy to transplant software to different operating systems. A relatively supporting Android APP needs to be installed,receiving data through bluetooth to achieve the function of displaying real-time data,saving to database and drawing curve,etc.The result of field-test shows that the lower machine can accurately receive and process data transmitted by sensor,the upper machine and Android client can both receive,process data as well as draw curve in particular data link,which greatly improves the experience of users,human-computer interaction,system expansion and migration.
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