Design For An Automated Door Lock (Smart Keyless Entry)

Mohd Haidy, Dzulfakry Thani (2008) Design For An Automated Door Lock (Smart Keyless Entry). Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

1bis system will integrate the existing technology in the car with a transmitter to be added on the key chain and a base station module to be installed in the car. The transponder will be sending a signal at all instances of time. The key is act as the transmitter, which means when the transmitter gets close to the car, the base station which installed in car will activate the transmitter, which in turn send shake-hand signal back to the base station. When the transmitter in the range of the car therefore set a true output signal and this system will hap~n automatically. The system is designed to automatically unlock or lock the vehicle as the operator approaches the vehicle. The bidirectional communication is used between the base station and transponder units. By using the PIC as the microcontroller unit (MCU) to operate this system because of this PIC features which consists of the Analog Front End (AFE). 1bis presents an issue for the life expectancy of the battery. Therefore, in order to reduce the operating current, the digital MCU section can stay in low-current mode (Sleep), while the Analog Front-End (AFE) is looking for a valid input signal. The digital MCU section is waking up only when the AFE detects a valid input signal.

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