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To provide personal services in a ubiquitous environment, it is necessary to identify users without giving a psychological pressure to them. This paper proposes a configuration of the sensor network used to identify a user based on his or her sole pressure distribution on a sensor mat that uses a hetero-core optical fiber. Specifically, it presents a filtering algorithm used to determine the pressure...
When creating a personal Web service, the personal identification method used in the service should not give users a feeling of being managed or supervised. We have proposed a personal identification method based on information about the "sole" of the foot, which has not yet been applied in the biometrics field, and evaluated the algorithm used in this method. This paper describes on the...
We are developing "the ubiquitous environment house" for observational learning in science education. The house can produce weather condition artificially. Also, the house gets real-time weather data from remote site via the Internet. Then, the system reproduces the remote weather condition in the environment house. If there are the same environment in the house and outside the house, students...
In the graying society, it is important to monitor health-related biosignal with sensors in the living environment for the sake of emergency response and long-term health management. In order to use biosignal data monitoring systems daily at home, noninvasive monitoring and system maintenance are crucial. We propose a method of estimating the sleep stages of sleeping subjects through noninvasive measurement...
Wide area ubiquitous networks should have the capability to handle more than 10,000 wireless terminals in a large wireless cell with the radius of several kilometers. However, the functions of wireless terminal are severely limited due to low power consumption and low cost requirements. Therefore, there is a need for a sophisticated wireless access system that employs smart wireless signal processing...
In wide area ubiquitous wireless networks, most wireless terminals (WTs) will transmit small amounts of data at comparatively long intervals. Therefore, each AP must be capable of accommodating a great many WTs. Moreover, this network is required to accommodate a variety of services; some services need to be prioritized. In this paper, we propose a novel prioritized control scheme that applies random...
In wide area ubiquitous wireless networks, most wireless terminals (WTs) will transmit small amounts of data at comparatively long intervals. Therefore, each AP must be capable of accommodating a great many WTs. Moreover, these networks must accommodate a variety of services; Quality of service (QoS) guarantees are essential. In this paper, we propose a novel QoS control scheme based on random access...
Wide area ubiquitous wireless networks, which consist of access points (APs) connected to the fixed network and a great many wireless terminals (WTs), can offer a wide range of applications everywhere. In order to enhance network performance, we need to collect different kinds of data from as many WTs as possible; each AP must be capable of accommodating more than 103 WTs. To satisfy this requirement,...
There were many successful milestones that researchers had passed achieving dasiahumanoid robotspsila, that are little closer to humans but not at whole. Although, the expectation level of the intelligence of these new systems is still unknown, it can be fairly assumed that reaching a goal at least up to an intelligence level of a human baby, may be a big success. In order to be more close to the...
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