Indoor-localization system using a Micro-Inertial Measurement Unit (IMU)

In this paper we present a wireless Micro-Inertial Measurement Unit (IMU) which is used for localization of people in indoor areas. The Micro-IMU is built especially for portable applications. The main target of the IMU design was to minimize the size, weight and power consumption, as much as possible whereas the performance is still comparable to commercially available wired IMUs. Through the minimum size the IMU can be integrated into clothes or shoes and provide the full functionality of pedometers. In an experiment the Micro-IMU was mounted on a shoe for detecting the human movement. With sensor data-fusion based on Kalman Filter and ZUPT (Zero Velocity Update) Algorithm we could track a person in an indoor area.