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AUTOMATIC CONTROL OF 3 PHASE INDUCTION MOTOR USING ANDROID DEVICE

Former Member

Hello SIr,

             I am working on a project which deals with the Automatic control (i.e switch on and off) of 3 phase Ac induction motor using android device and displaying the load characterisitics on the device.

             I would like to know which components best suit me in the project.

The most important is the choice of the board which i am unable to decide.the board should include the following

8 channel ADC

USB

MEMORY CARD SLOT

ETHERNET FOR WIRELESS TRANSMISSION

PROCESSOR

please suggest me a suitable board which is economical and also please help me with any suggestions to this project

  • 0

    You don't make it quite clear how you mean to control the motor - simple on/off control with a contactor or some kind of solid state soft start ?

    To measure load power you need simultaneous (or near to it) measurement of three voltages and three currents at at least 20x line frequency. You won't find an off the shelf Android ready board with this kind of ADC.

     

    You would do much better to use a standard Android device (phone or tablet) connected to a micro-controller via USB or possibly Bluetooth and let the micro operate the ADC and do the real time power calculations (or at least buffer the data so the Android system can do it in batches).

     

    If you want this to be low cost you will need to design and make the micr board yourself - and pay due care an attention to mains power safety issues.

     

    The quickest route to get this going would be to buy a ready made motor controller with built in power monitoring and connect your computer to that - controllers tend to use RS485.MODBUS, CAN or Ethernet interfaces.

     

    MK