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AUTOMATIC ELECTRICAL APPLIANCES ON/OFF CONTROL USING BIDIRECTIONAL VISITOR COUNTER


   Now a days people are wasting electrical power in home or offices due to their negligence and laziness. For example when all staff left the office, they won’t bother about the electrical appliances (like FAN, lights, AC, etc.,), whether appliances are switched off or not. Here office management maintains a person to monitor the all electrical appliances and switch off them when there is no person in the room to reduce power usage and also to reduce electricity bill. Most of electricity wastage happens in homes and offices. Wastage of Electricity will affect the environment directly or in directly. It will show effect on non-renewable resources, which are sweeping out from the earth for the need of mankind. Not only that, unnecessary usage of electrical appliances will increase the earth surface temperature.

In order to control this electricity wastage we must have an automatic power control device which will monitor the number of persons count in the room and operate the electrical appliance according to that. The mechanism to count the number of persons entering and leaving is done through a sensor circuit. There are two sensor circuit are placed inside (A) and outside (B) of the door. When a person crosses the sensor circuits ‘B’ first and then ‘A’ means that the he enters in to the room. Similarly, if a person crosses the sensor circuits ‘A’ first and then ‘B’ means that the he left the room. According to this mechanism the device will maintains the count about the person in a room. If the count is zero, the device will automatically switch off the electrical appliance in the room. In this way, the wastage of the power can reduce. This project uses two sensor circuits for the bidirectional count; hence this project is titled as “AUTOMATIC ELECTRICAL APPLIANCES ON/OFF CONTROL USING BIDIRECTIONAL VISITOR COUNTER”.

In this project the sensor circuits can be implemented by using any type of sensors like infrared (IR), LASER or Ultrasonic sensors. But for the cost factor IR sensors are used as bidirectional visitor counter. The IR transmitter always transmits the IR rays and the IR receiver should be placed in such a way that the IR rays from transmitter should fall on it. The circuit always sends a logic high signal to the microcontroller (89S52) circuit when there is IR rays falls on receiver. If the receiver finds the break in the IR rays (i.e. when a person crosses it) then the receiver circuit will produce a logic low signal on the microcontroller interrupt pin. Now the microcontroller will update the count based on sensor circuit crossing and it will displayed on to 7-segment display.



Block Diagram:

Block Diagram for AUTOMATIC ELECTRICAL APPLIANCES ON/OFF CONTROL USING BIDIRECTIONAL VISITOR COUNTER

4 comments :

  1. Good information to every one, how practically works along with the shematic diagram showing your blog keep it up.
    Delopt

    ReplyDelete
  2. If you are concerned about electrical safety, you should stop trying electrical installation and maintenance appliances on your own, and hire a qualified electrical contractor for all such purposes.

    ReplyDelete
  3. Controlling or watching over your appliances, should be anyone's priority. This is to maintains afety at home. Electrical appliances such as air conditioning must be turned off when not in use.

    ReplyDelete
  4. This is great, you are good, i like your post and i still waiting our next post!

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    ReplyDelete

Thanks for visiting NPEDUCATIONS. We will contact you soon

4 comments :

Delopt said...

Good information to every one, how practically works along with the shematic diagram showing your blog keep it up.
Delopt

Electrical safety said...

If you are concerned about electrical safety, you should stop trying electrical installation and maintenance appliances on your own, and hire a qualified electrical contractor for all such purposes.

Kyle Buckley said...

Controlling or watching over your appliances, should be anyone's priority. This is to maintains afety at home. Electrical appliances such as air conditioning must be turned off when not in use.

Dheztyvanesh Axelia said...

This is great, you are good, i like your post and i still waiting our next post!

poker online , judi bola

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