When we use biometrics identification such as fingerprint authentication, we have to do some special actions for identification. However, to do this special actions many times might be a burden. So we are considering “soft identification” using unawared sensors. Soft identification is different from traditional hard identification even in the goal. The former is mainly for security but the latter is for giving personalized service in home environment or a small office environment.(Person tracking by ultra-red ceiling sensors: Human identification by pressure sensors attached on a chair, and so on)
User Tracking
If we can track a user who is already identified, we don’t have to identify the user again. For this task, the video camera based methods can be candidate, however, from the view of privacy, users might feel being watched and uncomfortable. In this laboratory, to get rid of those concerns, we are researching to track users by using a ultra-red ceiling sensors network on the ceiling to track users.
赤外線センサーを用いたユーザ追跡システム
出入口の指静脈センサー(日立製)により誰が入退出したかはわかるようになっています。 （ハード作成は野中先生）
User Authentication without Cooperative Action
We are researching for user authentication from natural movements in life. We are using a set of pressure censors in the chair.
圧力センサーを用いたユーザ認証システム
（ハード作成は野中先生）
Health monitoring of a sitting person
Not limiting to elderly, even young people should be careful to their health in daily life. But, it is cumbersome to go a hospital for diagnosis. It is mored ideal to be made while spending thier ordinary life. There are some systems using some warerable sensors to measure the heart rate, but it is not confortable.
We are trying to measure the degree of fatigue of the person who is just sitting and desk working. We use a sheet that have many puressor senseors and measure how often and to what degree he/she moves form the sensor sheets. It may succeed to know the user’s fatigue from frequent sitting change or unmoving for a long time. [nakane_2011]
