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Ambient intelligence aims to actualize the environment that sense and utilize information around us without making us perceive the underlying systems. This work extends this concept by allowing us to track the movement and orientation of people and objects instantly. The proposed system can sense and let us know, for example, who met or talked to each other frequently, to whom s/he is often facing in the meeting, what stuffs people often use, where the person left his/her belongings, etc. Such information will help the system to understand the behavior patterns of each person and consequently can support and improve the personal life of users and even their mutual relationship. This paper proposes an instant indoor magnetic tracking system that enables us to track the movement and orientation of people and objects by only attaching tiny electronic trackers to them. The size of the prototyped tracker is only 25.4mm × 25.4mm × 10.0mm, and hence it can be readily attached to almost anything and immediately activated. Evaluation results show that the proposed system applies to both room-scale tracking and tabletop scale tracking with 6 DoF (Degrees of Freedom).

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This demo paper presents a desktop 3D positioning system, which is implemented with geomagnetic sensors and coils for DC magnetic field generation.Our system is composed of sensor nodes for localization, which sense and transmit the magnitude of the magnetic field to a host computer, and anchor nodes, which intermittently generate DC magnetic field with the functionality as sensor nodes. An advantage of our system is that the cover range and estimation accuracy can be enhanced instantly by adding anchor nodes since the added anchor node is also automatically localized. Also, the sensor node can be implemented in a mm-scale form factor with small power consumption thanks to the geomagnetic sensor, which enables us to attach the sensor nodes to various things. Object tracking could serve as a primary application of this system, such as virtual reality (VR), interactive educational experience and rehabilitation which can benefit the human computer interaction. CCS CONCEPTS• Human-centered computing → Collaborative interaction; Virtual reality; User interface design.