Publication: Multi terrain vehicle navigation using gps
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Date
2010-04-01
Authors
Basri, Muhammad Hazri
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Abstract
This project involves driving a vehicle using signals Determinants Global Positioning System receiver or (GPS) to the desired destination point. Vehicles moving on the land and road. GPS will be used for robot localization. Robot will be equipped with a GPS receiver and microcontroller of which is used as the main operator for each input and output of this vehicle, an 8-bit micro controller is enough to perform a given task in this project and would do more tasks depending on the application required. Projects usually include some combination of low cost sensors based on MEMS technology (Micro Electro Mechanical System) such as compass. The mobile vehicle will be supported by various affordable-cost sensor such as ultrasonics sensor for any obstacle detection and avoidance. To improve the efficiency and orientation, compass module is added as additional sensors and GPS to help get the better position. GPS sensor interacts with microcontroller to let it know the current position and direction of the next. By using three-point (initial position, the location of 10 meters or 15 meters depending on the weather from the starting point and destination point), vehicle will turn towards the destination. It also continues to make this calculation on every 10 meters (assuming clear skies, otherwise every 15 meter). Since vehicle is using Servo motors, it has very accurate turning angles. When the vehicle reaches the end-point, it will stop. The system will be design as a prototype for small multi terrain vehicle and it can be implemented into larger vehicle in the future.