GETA sandals: a footstep location tracking system

Abstract This paper presents the design, implementation, and evaluation of a footstep based indoor location system. The traditional Japanese GETA sandals are equipped with force, ultrasonic, orientation, RFID sensors and an accelerometer to produce a wearable location tracking system that demand little infrastructure in the deployed environment. In its basic form, a user simply puts on GETA sandals to enable tracking of his/her locations relative to a starting point (e.g., a building entrance), making it easy for deployment everywhere. The footstep location system is based on dead-reckoning, which works by measuring and tracking displacement vectors along a trail of footsteps. Each displacement vector is formed by drawing a line between each pair of footsteps, and the position of a user can be calculated by summing up the current and all previous displacement vectors. Unlike most existing indoor location systems, the footstep based method does not suffer from problems with obstacles, m...

• Type: Journal
• Year: 2007
• Where: PUC
• Authors: Shun-yuan Yeh, Keng-hao Chang, Chon-in Wu, Hao-Hua Chu, Jane Yung-jen Hsu
• Keywords: Demand Little Infrastructure, Displacement Vectors, GETA Sandals, PUC 2007