REMOTE AC POWER CONTROL BY ANDROID.

The project makes use of a remote ac power control by an android 8051 microcontroller for the operation. The commands sent via android device are received by a Bluetooth receiver mounted on the circuit. The receiver then processes the commands and sends it to the microcontroller for further processing. A lamp is used to demonstrate as an induction motor. The lamp intensity is varied as per the commands to simulate as induction motor speed.

Remote operation is achieved by any smart-phone/Tablet etc., with Android OS, upon a GUI (Graphical User Interface) based touch screen operation. The project uses a zero-crossing point of the waveform which is detected by a comparator whose output is then fed to the microcontroller. The microcontroller provides required delayed triggering control to a pair of SCRs through the optoisolator interface. Finally, the power is applied to the load through the SCRs in series.

This project uses a microcontroller from the 8051 families which are interfaced through a Bluetooth device, which receives a signal from the Android application device for increasing or decreasing the AC power to the load. A lamp is used in place of an induction motor whose varying intensity demonstrates the varying power to the motor. The varying power results in variation in the speed of the motor.

METHODOLOGY ANDROID REMOTE CONTROL

In this project firstly we prepared PCB Layout by using eagle software. Here we have used lamps as a load instead of AC motor so, the Opto oscillator is used as a light-sensitive device. Embedded C programming for the LCD display is burned on microcontroller 8051. We are using a blue control v2.0 android application device to control the intensity of light.

FEATURES OF REMOTE AC POWER CONTROL BY ANDROID

1. Remote AC Power Control Unit.
2. Provides Status output for remote network power control.
3. Power controlled by remote web browser, telnet, or SNMP manager connection.
4. Simple 10BaseT or 100BaseT power control.
5. 10 Amp Rating.
6. Rack Mount Option Available.
7. Power ON, Power Off, Re-boot, and Watchdog Remote Equipment.
8. Remote reboot, remote shutdown, remote server reboot.
9. Simple commands… ON, OFF, CYCLE, SHOW, Ping Test, etc.
10. Power control over the Internet.
11. Network reboot.
12. Web browser control adds additional functionality.

ADVANTAGES REMOTE AC POWER CONTROL

In this way, a simple rack PDU can save expensive trips out to distant locations just to check on power supplies. You can dispatch your technicians only when necessary. This way you’ll avoid the costs of windshield time – wasted time, fuel, and wages on the road.
CONCLUSION;-
A lamp is used in place of an induction motor whose varying intensity demonstrates the varying power to the motor. The varying power results in variation in the speed of the motor. The project can be further enhanced by using a direct 230 volt supply instead of 12 volt AC to the bridge rectifier for achieving higher voltage control for charging a number of batteries in series.

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