ELECTRIC LINE MAN SAFETY SYSTEM WITH OTP BASED CIRCUIT BREAKER

Athira P Nair, Josephin J, Anjana A S, Athira C P, Sebin J Olickal

Abstract: The electric line man safety system make use of a new concept of one time password (OTP). It is found that fatal electrical accidents to the line man are increasing during the electric line repair due to the lack of communication and co-ordination between the maintenance staff and the electric substation staff. Hence to avoid this we are implementing a password based circuit breaker. When the user put a request the system generates passwords and a relay switches to turn ON or OFF the circuit breaker. OTP plays a major role in this system. The one time passwords mean the generated passwords are different at each time. These passwords provide total control to the system to turn on or off the supply to each line. The maintenance staff e.g. line man has the control to turn ON/OFF the line, because the line man has to put a request to the system to its working. If there is a problem in any particular section of the supply line, then staff wants to turn off that line and repair it. For that the system generates a onetime password and sends it to his phone. Using a matrix keypad he can enter it in the system. Then the system compares the entered password with the generated password. If the passwords are matched, then the supply to that line will be made OFF and the password is expired. Now he can repair the line more safely and after it is over he can turn on that line by using another password. This ensures security of the worker because no one can turn on the line without his permission. The activation or deactivation of the circuit breaker is indicating by a lamp (ON/OFF).

Keywords: OTP, GSM, Circuit breaker; Password, Wireless communication

DOI: https://doi.org/10.15623/ijret.2015.0415006