We have developed a system for the localization of persons without the help of external reference sources such as GPS or wireless LAN. The system consists of an intertial sensor unit powered by an energy harvesting module which both can be integrated in a shoe. The necessary amount of energy for powering the sensors comes from the walking movement of the feet. Kinetic energy is being inductively converted into electrical energy.
Via radio transmission and with the respective geographical material, the live visualization of the calculated position and direction can be realized on a mobile device.
The infrastructure-independent system which embraces indoor and outdoor localization tasks is suitable for monitoring rescue work such as fire service. Through a mobile device, the officer-in-charge can check where his or her staff is. Also, the firefighters can identify the shortest way to a person in need of help.