Speed Control of D.C Motor using GSM Technique

Abstract

Electric drive systems employed in several industrial applications need higher performance, responsibleness, and skill to vary the speed. One among the enticing options of the dc motor over all alternative styles of motor is that the relative ease with that speed management may be achieved. During this paper, speed management of dc motor mistreatment GSM technology has been investigated. It's a closed-loop real time system, wherever the feedback circuit is coupled to the motor shaft to produce the feedback speed signal. A mobile phone is hooked up to the feedback circuit that is a trigger. The PWM signal are send to motor driver to vary the voltage provide to motor. GSM (SMS) controlled dc motor is automatic control system which capable of receiving a set of command instructions in the form of short message service and performs the necessary actions like start stop and speed control. We will be using a dedicated modem/mobile at the receiver module i.e., with the robot itself and send the commands using SMS service as per the required actions. The mobile unit which is dedicated at the motor driver is interfaced with an intellectual device called micro controller so that it takes the responsibility of reading the received commands in the form of SMS from the mobile unit and perform the corresponding predefined tasks such as motor start, stop, motor direction and speed control at different levels etc.