Design and construction of Microcontroller based remote Keyless entry system

This research project focuses on the microcontroller based remote control technology. The integration of electronic functions into the door will continue to increase in the future. The trend is towards plug- and -play modules for discrete door functions with communication. The master could be the central body electronic control unit (ECU) or the window lift module, additional functions can be added easily slave connections. The two main objectives are to unlock a set of vehicle doors when the user approaches the vehicle and to lock the vehicle after the user leaves by remote keyless entry. The system is also designed to control the window's position and back mirror folding. In a remote keyless entry (RKE) system, a vehicle is unlocked and locked from a distance about ten to fifteen feet by a radio code sent from a remote control to a receiver in the vehicle. The remote control key includes a transmitter for transmitting a signal to remotely control locking and unlocking of a door. Radio frequency (RF) and Infra-red communications can provide additional vehicle functionality. Assembly programming language is applied to control AT89S51 controller for these functions. In this system, infra-red sensor is used and power MOSFET is applied for motor diver. This research work can be used for real application