Internet of Things-based Early Warning Car Theft Security System Using Smartphones

Car safety when the owner parked his vehicle on the street or at home is very at risk of theft, if the vehicle does not have a double lock it will result in the car being stolen without the owner’s knowledge. Car theft is caused by several factors, the main factor is the inadequate car security system, so that the car is turned off if there is theft, sometimes the car alarm does not sound. While the remote control is generally only used to open / close doors and still uses infrared sensors which have a limited range. The car security early warning system is a warning / early detection system to see the condition of the car and information on the parking position (idle) starting from the position of the car theft until the vehicle owner finds out quickly and accurately. In previous research, the use of NodeMCU as a motorized vehicle security system was visually connected to a smartphone device. NodeMCU as an Arduino board that has the ability to access Wireless Fidelity. Passive InfraRed sensor is a sensor that is used to detect infrared rays and only receives infrared radiation from the outside, so that the movement of objects can be known. The purpose of this study is to design a smartphone-based car early warning system. Based on the results of testing the tool made, the accuracy of the system used is 90% which is effective for dealing with the movement of parked cars from theft.