International Journal of Innovative Research in Science, Engineering and Technology (IJIRSET)
GSM PLC (Global System for Mobile communications) provides Short Message Service (SMS) type of communications process that enables the transmission of short text message and data transfer to and from mobile devices such as cell phones. This paper is to perform exterior car washing automatically using Programmable Logic Controller (PLC) integrated with GSM modem. GSM-PLC sends information like entry, exit of car, emergency conditions to the customer or operator through SMS. After acquiring the information from PLC, the operator can able to act upon it. Car washing includes Spraying of soap solution, cleansing with water, wiped by brushes and finished with forced air drying.