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Recently, energy policies have been adopted by various countries around the world to realize a low oxygen society. Attention has been paid to self-sufficient smart home technologies to reduce energy consumption. Power storage devices integrated into photovoltaic power generation devices have been introduced in smart homes. Such power storage devices are mainly used to decrease power peaks and shift...
This paper described a method of automatic extraction of abnormal points from electric cable. The cable changes the color depending on the weather, environment and used period. We define low brightness area and classify size of it. We divide them into abnormal and normal with discriminant analysis method. As the result, we can detect all arc-marks for no rust cables. On the other hand, we can detect...
This paper proposes a method for simultaneous localization and mapping based on evolutionary computation. First, we propose a map building method based on growing topological neural networks. According to the measured distance by laser range finder, the map is updated sequentially. If the difference between the measured distance and its corresponding map data is large, the robot updates the self-location...
This paper proposes the new method for suppressing the inherent wave of the sensor system.The inherent wave often prevents from analyzing the signal of target. Previous method calculated the inherent wave to solve this problem using two assumptions.However,the calculated wave is differ from the original inherent wave in unsatisfying the assumptions. Therefore, the new method estimates the wave using...
This paper describes fuzzy damage extraction method for ultrasonic nondestructive testing images. In our experiment, we employ a piece of wind turbine blade as a specimen has artificial damages. We acquire ultrasonic waveforms from scanning lines on surface of the pecimen using an ultrasonic single probe. To extract the damages, we calculate fuzzy degrees of average difference data of all scanning...
This paper describes a method of average difference imaging and applying it to ultrasonic nondestructive evaluation of wind turbine blade. Average difference image is made from the means of intensity difference among several images. The image demonstrates the difference between an interested image and the other images. In performance test of this method, we employ a specimen of wind turbine blade...
Recently, as the number of elderly people increases, much more caregivers are required for the support for them. However the number of caregivers and therapists is not enough in the current situation. In this paper, we propose a support system for the elderly introducing robot partners, sensor networks, and portable sensing devices in informationally structured space. In the system, human state estimation...
This paper proposes a human localization method in sensor networks for monitoring elderly people. First, we explain the proposed intelligent sensor networks. Next, we apply a spiking neural network to extract feature points for human localization from a measurement data by sensor networks. Furthermore, we propose a learning method using spiking neural network based on the time series of measurement...
In this paper, we analyze human gait pattern and estimate her/his foot age. We acquire foot pressure distribution change as gait pattern by a mat type load distribution sensor. From the foot pressure distribution data, duration of gait cycle and center of foot pressure (CFP) changes are determined for each stride. We employ four estimation indexes such as step length, step CFP width, the time of double...
This paper proposes a biometric personal authentication method based on one step foot pressure distribution change. We acquire the foot pressure distribution change by mat type load distribution sensor and use it as a personal authentication. We employ twelve features based on shape of footprint, and twenty seven features based on movement of weight while walking. A classifier for each feature is...
This paper describes a method for distribution of people monitoring system using a 3D camera. This camera measures distance and intensity distribution based on time of flight (TOF). From the obtained distance data, we perform clustering processing to detect the distribution of people. In our method, fuzzy logic plays a primary role to decide the cluster, i.e., people number. Our proposed method applied...
In this paper, we propose a personal identification by sole pressure change. We obtain sole pressure change of multiple steps by using two pressure sensor sheets. Each pressure sensor sheet is inserted into each shoe as an inner sock. Then, we extract characteristics of sole pressure change from the obtained data. We make template data of both feet from the extracted characteristics. We propose a...
Recently, the social role of the nursing health facilities increases more and more as Japan becomes an aged society. The health care should be done according to meals, daily exercise, sleep, and others. In this paper, we focus on the monitoring of sleep using optical oscillosensor and pneumatic s for the health care to elderly people. In these sensors, two thresholds are used for the state estimation...
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