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Design of Smart Power Controlling and Saving System in Auditorium by using MCS 51 Microcontrollers


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Abstract

The main aim of this paper is to design and employ of power saving in general public places like auditoriums, shopping malls and theatres etc. Generally an Auditorium consists of so many number of electrical and electronic devices or equipments. To control and monitor all these equipments or appliances we need a person or controlling system. In this paper we are presenting the working of smart power controlling and saving in auditoriums, shopping malls, theatres etc., by using an electronic circuit in an easy way without having human being. This paper describes the complete working of electrical and electronic devices with automatic control and also power saving in theatres, shopping malls and auditoriums. To implement this we have used MCS 51 family microcontroller, IRsensors/LDR (Light Dependent Resister), 16X2 LCD (Liquid Crystal Display). MCS 51 family Microcontroller is used to control the total operation. The MCS 51 family micro-controllers are famous for these types of projects.

Introduction

Today power/current is a most valuable thing in the world. So we have to save the power to give for our next generation. Automatic controlling systems are preferred over manual controlling. The design of power controlling and saving project can handle controlling of electrical and electronic devices, appliances etc. Through this project we are tried to show a smart way to control the power consumption and power saving in Auditoriums, Shopping malls and Theatres etc. Now in all cities/areas we have shopping malls, theatres and auditoriums. In this monitoring and controlling the appliances becomes very typical to human being. If less number of persons enters in the auditorium then no need to switch on all the devices in that. If they on it is waste of power. If maximum persons are in that we need to ON all the devices without fail. This is too hard to maintain properly and manually. If suddenly any problem arise, it is very difficult to find out. To overcome these types of problems we are developed a system that can maintain all these ricks. This paper covers the features of capacity of monitor, hardware description, the use of different types of sensors.

Circuit Operation

The two IR sensors/LDRs are directly connected to the
microcontroller pin P0.0 and P0.1. The output of the two
sensors are applied as a high pulse and low pulse. These
high and low pulses are considered as „set – 1‟ and „reset –
0 ‟. And this conditions are checked by the microcontroller
as per the written code/dumped code in it. The
code/program is written in assembly language. The
“ENTRENCE” IR sensor reads/counts the no. of persons
enters into the auditorium/shopping mall/theatre. Then
lights, fans, other electronic and electrical appliances are
switched ON automatically, as per the count given in the
program/code. In this project we illustrated the concept
with one „ac‟ bulb and two „dc‟ fans. If less no. of persons
are enters in auditorium, only one device should goes ON.
If the no. of persons are entering into auditorium is
increased then automatically the remaining all devices goes
ON. In the same way the “EXIT” IR sensor sense/counts
the no. of persons leaving from the auditorium. If one by
one leaves from auditorium then automatically the devices
(fan, light.etc.) in that goes OFF one by one

Conclusion

In this paper we have developed a real time model that can control and monitor the complete status of all appliances of any place like auditorium, shopping mall, theatre, school, college, bus stand etc automatically without having human interference. So that there is a chance to reduce the power wastage and human efforts. An automated auditorium can be a very simple grouping of controls, or it can be heavily automated where any appliance that is plugged in to electrical power supply is remotely controlled. It monitors the entrance and exit s of the auditorium so that we need not to check manually. This system has a lot of advantages such as simple structure, small size, low power consumption, low cost and stable. References
1. Muhammad Ali Mazidi,Janice Gillispie Mazidi “The 8051 Microcontroller and Embedded Systems Using Assembly and C-2nd-ed”
2. Oliver Gassmann “Sensors Applications volume-2”
3. http://www.atmelImages/doc1919.pdf