What is it about?
Life without electricity can never be imagined in this world, so it’s every human duty to save electricity. But due to the busy schedule existing in present, often many of us forget to switch off lights and fans which increase wastage of electricity. Often we find lights and fans in the classroom will be on though the classroom is empty which increases the electricity bill. This is the major issue in most of the educational institutions. Over the past decade, there has been significant advancement and innovations in the field of consumer electronics by using new technologies we can automate the control of main power supply provided to the classroom which significantly reduces the power consumption. Automation provides some sort of automatic control to the electrical appliances present in the building.
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Why is it important?
Although there are a lot of products available in the market which will turn on/off lights based on the human presence or absence respectively. But the problem is that available technology requires a very big infrastructure (For example existing switchboards have to be replaced with new ones).But we will use the existing switchboards and CCTV cameras, which are pre-installed in most of the educational institutions.
Perspectives
Our article presents a simple and powerful concept wherein, We are using image processing technique to detect the motion and based on the result whether to turn on/off the power supply to the classroom .When the raspberry pi boots up the script which includes the path of the proposed algorithm starts executing and starts detecting the motion of objects by comparing the reference image and the current image captured by the camera. If there is any motion detected then the algorithm sends raspberry pi a message that there is someone present in the classroom and it has to turn on the initialized GPIO pin which in turn triggers the relay and turns on the main power supply. If there is no motion detected then the GPIO pin is not turned on and so is the main power supply provided to the classroom.
Dr Mallikarjun Anandhalli
Central University of Karnataka
Read the Original
This page is a summary of: Automatic Control of Power Supply in Classroom Using Image Processing, March 2017, Institute of Electrical & Electronics Engineers (IEEE),
DOI: 10.1109/icraect.2017.16.
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