2D Mapping Robot using Ultrasonic Sensor and Processing IDE

Map building is a vital organ of today's satellite navigation. It is of high use for military operations prior to stealth attacks. In this paper, we present a low-cost solution to building maps of stationary objects. It involves a single ultrasonic sensor mounted on a 180 degree rotating shaft. Readings are taken at regular intervals of time over two sweeps. The algorithm merges the reading of ultrasonic sensor into a semi-circular scalable map. This paper also discusses the algorithms and the mathematics involved. Additional features discussed are motion detection using Passive Infrared sensor and Bluetooth navigation. Our implementation has reduced the computational requirements due to reduced hardware and simplicity of map building algorithm. The resulting graph plots both stationary and moving objects.