Accelerometer based wireless wheel rotating sensor for navigation usage

Accelerometer is an important component in INS. Low cost MEMS accelerometers often provide poor accuracy and make system divergent rapidly. This paper provides another way to use accelerometer. Mounting accelerometer on wheel, one can get accuracy angular velocity and degree of wheel, then vehicle's speed and passing distance can be calculated accurately. A self-made concept system was verified that the error of the system is about 15m over 967m integrated path.