Design of Touch Key-Voice Command Based Vehicle Additional Security System

Vehicle theft is still a big problem, usually by damaging the ignition switch. So that additional security is needed in a vehicle. The following paper describes a vehicle security system with a combination of a touch key and voice commands to be installed on a motorcycle. To prevent theft, a motorcycle can only be started by touching the hand at a secret point and using voice command with a predefined password. The proposed prototype uses an Arduino microcontroller, a touch key module, a Bluetooth module, and a relay module. The test results show that the security system that has been created successfully starts the engine only if it is activated using the touch key first. It will pass a voltage of 7.9 V to power the microcontroller. Then activate the CKP sensor and fuel injector using a voice command via a Bluetooth smartphone connection. The distance of sending data from the smartphone to the Bluetooth module in conditions without obstacles can reach 12 meters. Repeated testing shows the designed prototype can work well as expected. Therefore, this prototype has the potential to be developed and implemented as a vehicle security system.