Course Content

SMS controlled solar Vehicle

Abstract

This paper presents the construction of a vehicle that controlled by the GSM communication network. The designed vehicle could be operated from anywhere under GSM network which is powered by solar energy using 5-watt photo voltaic (PV) panel, stored in 12V rechargeable batteries. The operation starts with a call generated from a phone which is auto answered by another phone. In the course of a call, if any of the key 1, 3, 2, 4, 6, 8, or 5 is pressed a tone corresponding to the key pressed is heard at other end of transmission which is called Dual Tone Multiple Frequency (DTMF) tone. The received signal (tone) in the cell phone at vehicle end is processed by 8051 microcontroller. These signals are sent to the motor driver which drives the motors. Most important as the car will be runs by solar energy, tracking systems naturally provide the best performance, given that the components have high enough accuracy as well. So the vehicle can be sent to a long distance and not worrying about the charge of the batteries, since it accumulates the energy required from the external Photo Voltaic panel that absorbs the sun light and converts energy to generate the driving power, though there will be battery as a backup.