Android-based surveillance car

Nowadays, mobile phone technologies have been developed in many aspects both software and hardware. In this era, a mobile phone contains many smart functions that perform with higher speed but lower price than before. A smart phone attracts people and almost everyone already possess. This paper illustrates a method to build a surveillance car that is controlled by a smart phone with an android operating system. The advantage of the surveillance car over the surveillance camera is that the car can move around the area freely, so a user can get any point of view in video format from a camera that is attached to the car. Moreover, with temperature sensor, the user can monitor and prevent a house fire. In the present study, the system was composed of two smart phones. The first one held by a user received video content from the second one attached to the car. The user could control the direction of the car by sliding fingers on a touch screen or tilting a smart phone. At this stage, the signal was sent to the second one which passed it to the microcontroller board controlling the movement of the car.