A smart distance power electronic measurement using smartphone applications

The objectives of this article were to design a low-cost three-phase AC voltage measurement circuit and new Android smartphone application to monitor the measuring voltage from a safe distance. The smart distance power electronic measurement (SDPEM) system was designed based on an Arduino UNO R3 board used as a microcontroller to read and calculate the RMS values from a three-phase AC voltage measurement circuit (line-to-line or phase voltage of grid). Following this, the microcontroller sends the measuring data by Bluetooth to an Android smartphone application. The Bluetooth shield V2.0 was used as a wireless communication instrument between the SDPEM and the smartphone or tablet application. The smartphone monitoring application was a new application designed by the open-source developed program (MIT App Inventor 2) to monitor the three-phase AC voltage results from a safe distance. The safe distance depends on the type of Bluetooth device used. The main advantages of the SDPEM system are low cost and safety.