Abstract
Recent years, some developed countries have been promoted telecare systems to monitor elderly people living alone, or patients in private sickrooms. Most existing telecare systems use a monitor camera, therefore, the privacy of the examine is not protected. We have developed a new telecare system without a camera to save the clients privacy. The PTS (Pattern displayed telecare system) utilizing an FIS (Ferri magnetic infrared sensor) can measure human action patterns without a monitor camera, so it has the merit of protecting the privacy of the person being monitored. The FIS is an infrared sensing system using the magnetic change of the ferri magnetic film with the marked temperature dependence in the room temperature range. When the FIS array fitted on the ceiling or the wall of a room received infrared rays from the human body, it absorbs infrared energy which causes magnetic change, then the action of the client is patterned by the PTS in real time. The observed action pattern data may be sent to the observer through a communication network such as the internet. The paper describes construction of the PTS and its response characteristics.
