Publishing type：Research paper (scientific journal)   Publisher：Institute of Electrical and Electronics Engineers (IEEE)  

DOI： 10.1109/access.2025.3561288

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Publishing type：Research paper (scientific journal)   Publisher：Institute of Electrical and Electronics Engineers (IEEE)  

DOI： 10.1109/access.2025.3556405

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Publishing type：Research paper (scientific journal)  

DOI： 10.1109/LSENS.2024.3435965

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DOI： 10.1109/LSENS.2024.3423656

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Publishing type：Research paper (international conference proceedings)   Publisher：IEEE  

DOI： 10.1109/ICST46873.2019.9047673

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Other Link： https://dblp.uni-trier.de/db/conf/icsenst/icst2019.html#TakahashiKNM19

Publishing type：Research paper (international conference proceedings)  

DOI： 10.1109/IRIS.2017.8250149

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：Springer Verlag  

DOI： 10.1007/978-3-319-60597-5_33

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Language：English   Publishing type：Research paper (international conference proceedings)  

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Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

<p>Over 100 children die of falls from balconies for five years in Tokyo. This paper proposes a new system for detecting fatal situation using RGB-D camera for preventing children falls from balconies. The system has two functions. The first is to detect a child inside a target balcony by estimating his or her age from the length of the body trunk. The second is to detect the places that the child can climb by evaluating shape of objects in the balcony. We conducted experiments at the AIST's living laboratory and an ordinary apartment, and confirmed the effectiveness of the functions.</p>

DOI： 10.1299/jsmermd.2017.2P2-G11

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Language：English   Publishing type：Research paper (international conference proceedings)  

DOI： 10.1016/j.promfg.2015.07.229

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Language：English   Publishing type：Research paper (international conference proceedings)  

DOI： 10.1016/j.promfg.2015.07.623

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Language：English   Publishing type：Research paper (international conference proceedings)  

DOI： 10.1007/978-3-642-39238-2_11

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Language：English   Publishing type：Research paper (international conference proceedings)  

DOI： 10.1109/SMC.2013.528

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Language：English   Publishing type：Research paper (scientific journal)  

DOI： 10.1016/j.aap.2013.06.015

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Language：English   Publishing type：Research paper (international conference proceedings)  

DOI： 10.1007/978-3-642-39229-0_55

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Language：English   Publishing type：Part of collection (book)   Publisher：CRC Press  

DOI： 10.1201/b12319

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：Fuji Technology Press  

DOI： 10.20965/jrm.2012.p0838

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：Fuji Technology Press  

DOI： 10.20965/jrm.2012.p0802

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Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

Leading cause of death for children from 1 to 14 years in Japan has not changed for 30 years,which is 'accidental death'.Besides,intentional injuries due to child abuse have been drastically increasing within 10 years.We aims to systematically correct both children's intentional and unintentional injury data at hospitals and utilize those to identify the cause and study how to cope with the injuries,in order to prevent the recurrence.This lecture focuses on to describe a part of the project,which is how to create general safety knowledge from injury cases by analyzing and identifying the cause of accidents.

DOI： 10.1299/jsmemecj.2012._c021002-1

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Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

In this peper, the system estimating biomechanical characteristics in the system for supporting forensic authentification vased on individual biomechanical characterstics is reported. The system estimating biomechanical characteristics integrated measuring 3D shap, a system for inspecting biomechanical characteristics and element simulation and the example using this system is reported

DOI： 10.1299/jsmermd.2011._2p2-k11_1

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Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

This paper describes the development of the fall database for a biomechanical simulation. First, data of children's daily activities were collected at a sensor home, which is a mock daily living space. The sensor home comprises a video-surveillance system embedded into a daily-living environment and a wearable acceleration-gyro sensor. Then, falls were detected from sensor data using a fall detection algorithm developed by authors, and videos of detected falls were extracted from long-time recorded video. The extracted videos were used for fall motion analysis. A new CV algorithm was developed to automate fall motion analysis. Using the developed CV algorithm, fall motion data were accumulated into a database. The developed database allows a user to perform conditional searches of fall data by inputting search conditions, such as a child's attributes and fall situation. Finally, a biomechanical simulation of falls was conducted with initial conditions set using the database.

DOI： 10.1299/jsmeshd.2011.255

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Publisher：Japan Ergonomics Society  

DOI： 10.14874/jergo.46sp.0.434.0

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：Acta Press  

DOI： 10.2316/p.2010.689-026

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：ICST  

DOI： 10.4108/ICST.SIMUTOOLS2010.8732

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Publisher：Japan Ergonomics Society  

DOI： 10.14874/jergo.46sp.0.96.0

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Language：Japanese   Publisher：一般社団法人 人工知能学会  

子どもの事故予防に配慮した製品設計を行う際、子どもと製品とのインタラクションを検討することが重要となる。しかし、製品の安全設計は設計者によって主観的に行われているのが現状である。本研究では、実データから作成された傷害発生モデルと子どもの行動モデルを生体衝撃シミュレーションと統合し、子どもの日常行動を製品設置空間で重ね合わせて再現することで、起こり得るハイリスクな事故状況を提示する方法を述べる。

DOI： 10.11517/pjsai.jsai2010.0_3j1nfc1a6

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Other Link： https://ndlsearch.ndl.go.jp/books/R000000004-I025925905

Language：Japanese   Publisher：The Japanese Society for Artificial Intelligence  

This paper proposes a new technology,``a bodygraphic injury surveillance system (BISS)'' that not only accumulates accident situation data but also represents injury data based on a human body coordinate system in a standardized and multilayered way. Standardized and multilayered representation of injury enables accumulation, retrieval, sharing, statistical analysis, and modeling causalities of injury across different fields such as medicine, engineering, and industry. To confirm the effectiveness of the developed system, the authors collected 3,685 children's injury data in cooperation with a hospital. As new analyses based on the developed BISS, this paper shows bodygraphically statistical analysis and childhood injury modeling using the developed BISS and Bayesian network technology.

DOI： 10.1527/tjsai.24.558

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Language：Japanese   Publisher：一般社団法人 人工知能学会  

事故事例から事故対策法を開発するには、事故状況再現が不可欠であるが、欠損データが多い事故情報からの状況推定には、超高自由度空間の探索を扱う問題が生じる。本稿では、得られる情報をうまく融合することで、効率よく事故状況を推定する技術として、遊具事故を例題として、日常の使われ方確率分布、遊具事故傷害の身体空間確率分布、生体衝撃シミュレーション技術を融合し、事故状況尤度を計算する方法を述べる。

DOI： 10.11517/pjsai.jsai2009.0_3d2nfc15

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Other Link： https://ndlsearch.ndl.go.jp/books/R000000004-I025899142

Language：Japanese   Publisher：The Robotics Society of Japan  

DOI： 10.7210/jrsj.26.736

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Language：Japanese   Publisher：Japan Society for Fuzzy Theory and intelligent informatics  

Understanding everyday life behavior requires multidisciplinary and integrated research. This stems from the fact that everyday life behavior is much higher dimensional phenomena than a single academic society can deal with. This paper discusses a method for representing and processing information to deal with everyday life behavior and proposes a new concept of a "spatio-temporal-semantic mapping system (STS Map)" that allows us to standardize and integrate a variety of information and to share information multidisciplinary. The features of the STS Map lie in 1) spatio-temporal expansion of behavior metrics sensing with location sensor, 2) representation based on an environmental coordinate system, 3) a statistical modeling process for knowledge acquisition and a retargeting process. To show the effectiveness of the proposed STS mapping system, this paper reported an implemented system and a case study using the implemented system. In the case study, we conducted in situ measurement of 47 children playing with equipment by a wireless wearable location-electromyography sensor and created two models on a children's skill from the measured data. This paper reported cross-validation of the constructed behavior models and compared them. This paper also reported a new design of play equipment having a climbing part that was suitable for the target age group of children. The new design was conducted using the created model in collaboration with playground equipment designers.

DOI： 10.3156/jsoft.20.190

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Other Link： https://jlc.jst.go.jp/DN/JALC/00312885500?from=CiNii

Language：English   Publishing type：Research paper (international conference proceedings)  

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Language：English   Publishing type：Research paper (international conference proceedings)  

DOI： 10.1109/ICSENS.2008.4716662

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Language：English   Publishing type：Research paper (international conference proceedings)  

DOI： 10.1109/IROS.2007.4399571

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Language：Japanese   Publisher：The Robotics Society of Japan  

Providing parents with information related to child's injury has been considered to be a useful method for preventing child's injuries for many years. However, statistics on child's injuries shows that conventional methods failed to reduce injuries. One cause lies in the lack of feedback loop for personalizing information. In this paper, the authors describe"an information circulation system, "which collects information on parents' cognition on child's injuries through offering personalized information in parallel. This paper describes a new service which offers injury scene videos on the web for injury prevention as a concrete example of the information circulation system. The feasibility of the new service is confirmed by conducting experiments on web for over 13 months in cooperation with a company. This paper also proposes a new method for personalizing information by selecting optimal videos on the web content service based on feature values describing injuries. The effectiveness of the proposed method is proved by questionnaire survy for 20 parents.

DOI： 10.7210/jrsj.25.887

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Other Link： https://jlc.jst.go.jp/DN/JALC/00299749048?from=CiNii

Language：Japanese   Publisher：The Robotics Society of Japan  

DOI： 10.7210/jrsj.25.690

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Other Link： https://jlc.jst.go.jp/DN/JALC/00297900533?from=CiNii

Language：English   Publishing type：Research paper (international conference proceedings)  

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DOI： 10.1145/1228716.1228745

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Language：English   Publishing type：Research paper (international conference proceedings)  

DOI： 10.1109/ICSENS.2005.1597791

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Language：English   Publishing type：Research paper (international conference proceedings)  

DOI： 10.1109/ICSMC.2004.1399853

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：Association for Computing Machinery  

DOI： 10.1145/964482.964508

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：Institute of Electrical and Electronics Engineers Inc.  

DOI： 10.1109/ICSMC.2004.1400778

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier  

DOI： 10.1016/0921-8890(96)00004-8

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Language：Japanese   Publisher：The Robotics Society of Japan  

Understanding human intention is an essential function for a robot which can offer adequate support to human beings. It requires smooth communication between the human and the robot. Human behavior is an expressive media of communication. This paper proposes a new function of"active understanding of human intentions"by a robot through monitoring of human behavior. The unique feature of the proposed function lies in the fact that it utilizes multi-communication channels in parallel, i.e., human intentions are understood not only through conscious behavior but also through unconscious behavior. The paper also proposes a robot architecture to realize the function. Following points are the key features of the architecture: 1) A robot possesses multi-sensors which surround the human. 2) Information processing is carried out by dual loops — a loop for information exchange between the human and the robot and a loop for human intention understanding. As an example of a robot with the human intention understanding functions, the authors constructed a micro-teleoperation robot. It can automatically understand an operator's intention through such unconscious behavior of touching a desk with an operator's hand which holds a pen-shaped master. The understood result is utilized to change the control mode of a master-slave manipulation system from fine motion to rough motion and vice versa. The experimental results prove that the proposed function is effective in making the operation of the system easier. Consequently the system is friendly to the operator.

DOI： 10.7210/jrsj.13.545

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Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

Recently, unintentional injuries due to play equipment with air-inflated membrane structure occur frequently as this type of playground is becoming popular. Shock absorption performance of air filled play equipment is intricately changed by repetitive external impact. In this study, the authors developed a femur impact which is used for impact measurement in order to repetitive impact. A finite element model of the play equipment was also developed to conduct basic analysis od dynamics of the equipment.

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Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

In this study, a computational model of child climbing behavior has been developed to prevent childhood injuries by changing environmental factors. This model is constructed by probabilistically modeling the relationships among product design parameters, child characteristics, and climbing behaviors based on observed behavioral data. Large scale behavioral data are needed to apply the behavior model to every day life environment. In this paper, a system for sensing child climbing behavior is developed using strain gauge force sensors installed under experimental boxes. This system simultaneously collects force sensor data and camera data during an experiment and enables to measure child climbing behaviors toward the boxes.

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Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

This paper describes a probabilistic distribution database of fall dynamics to develop preventive measures for childhood serious injuries due to fall. For this purpose, at first, we collected data of childhood activities at the sensor home which is a mock daily living space. This sensor home consists of a multivideo-surveillance embedded into a home environment and an acceleration-gyro-sensor attached to a child body. The acceleration-gyro-sensor is used for fall detection. Next, we calculate daily fall dynamics value by extracting fall videos from the recorded behavior data by a fall detection algorithm developed by authors and analyzing extracted fall videos, and developed database by accumulating fall data. In the developed database, a user can perform conditional search of fall data by giving search condition such as child attribution and fall situation. This database enables the user to conduct not only worst case analysis, but also analysis based on percentile in consideration of probabilistic distribution.

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Language：Japanese   Publisher：Japan Society for Science Education (JSSE)  

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Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

Injury prevention is one of the most important and urgent issues in children's health since the primary cause of death of children is unintentional injury. Passive approach, namely injury prevention approach by product modification is strongly needed. The risk assessment is one of the most fundamental methods to design safety products. However, the conventional risk assessment has not been able to deal with risk of childhood injury due to product use because product manufacturers have poor childhood injury data and child behavior data. Developing methodology of evidence-based assessment for childhood injury risk is required by product manufacturers. This paper proposes a system for presenting potential high-risk situation by integrating biomechanical, injury, and child daily behavior model. To prove the effectiveness of the proposed system, this paper describes the application of the system to the risk analysis of a playground swing in a park. The system calculated the potential risk of head injury around the swing equipment.

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Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

We report on studies to develop new playground equipment by applying sensor technology to examine the science behind children's interaction with playground equipment. Fifty force sensors installed in the developed rock-climbing wall are able to collect a large amount of data while children are playing with the equipment. The behavior data of 623 children were recorded in the present study. Herein, we also report on a child behavior prediction model created from the collected data.

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Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

To address a problem of childhood unintentional and intentional injuries such as injury due to accident and injury due to child abuse, tools for scientifically analyzing causes of death and injury process is needed. The objective of this study is to develop a system for supporting forensic authentification based on individual biomechanical characteristics by robotizing a forensic autopsy room. The system supports inspecting biomechanical characteristics, and injury process analysis by biomechanical simulation based on the inspected characteristics. To this end, as the first step, this paper describes analysis of the forensic autopsy work and development of a system for inspecting biomechanical characteristics.

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Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

The reproduction technology of accident situation is indispensable identify hazards, investigate causes, and develop preventive measures for serious child injuries. This paper proposes a method for estimating accident situation by integrating the bodygraphic injury surveillance system and a fall simulator. The proposed method allows us to to estimate possible accident situations, search the most likely accident situation by evaluating the similarity between simulation data and injury case data, and conduct the worst case analysis. This paper also reports an example of the application of the proposed method to reproducing an actually occurred accident case of play equipment.

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Language：Japanese   Publisher：東京 : 日本小児保健協会  

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Other Link： https://ndlsearch.ndl.go.jp/books/R000000004-I10196136

Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

Development of everyday life service technology requires understanding everyday life behavior. However, it is difficult to recognize meanings of multiply ambiguous behavior from collected sensor data. To tackle this problem, this paper proposes a system for describing and managing human behavior data using not only sensor data but also meaning and context data. This system consists of embedded sensors for measuring a person's behavior, wearable sensors for measuring the person's remarks and statistical analysis software. The authors applied the developed system to two analyses : 1) causality analysis between "cleaning-up" pattern and person's temperament, and 2) causality analysis between power consumption and behavior.

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Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

Death due to drowning accounts for about 30 % of unintentional injuries of 1 to 4 year infants in Japan. Development of an infant drowning prevention system is strongly required. This paper describes a newly developed system for preventing infant drowning at home. The developed system can measure the wave motion of water in the bathtub using an accelerometer, detect the abnormal wave motion, and give a warning to guardians with a radio communication. This paper discusses the optimum shape and size of the floating body of the preventive system and also presents a system for collecting motion data of bathtub water for long time in an ordinary home in order to conduct science of bathtub water in everyday life.

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Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

This paper describes a bodygraphic injury surveillance system in which a conventional injury surveillance system and a bodygraphic information system are integrated. The bodygraphic injury surveillance system allows us to represent and accumulate external injury related information in a normalized and multilayered way. The system also enables to retrieve necessary data using not only text query such as injury situation and injury mechanism and but also bodygraphic query. This paper also reports examples of injury modeling and statistical analysis by the developed system and 1,628 injury cases data collected in a hospital.

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Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

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Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

Death due to drowning accounts for about 30% of unintentional injuries of 1 to 4 year-old infants in Japan. This paper describes two kinds of newly developed systems for preventing infants' drowning accident at home. One system is a sensor floor for detecting infant's "access" to bathroom. The other is a wave motion sensor system for detecting "injury occurrence" by monitoring unusual wave motion occurring immediately after drowning occurs. As for the sensor floor, the authors conducted experiments for 21 infants from 0 to 6 year-old. The success rate of detection is 99.2% for a target age group. A new finding related to infant's step is also described. As for the wave motion sensor system, fundamental performance of the system is reported.

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Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

To prevent child's injury, it is not enough to only offer information related to child's injury prevention. It is necessary to offer information and collect users' feedback data in parallel and offer personalized information based on collected data. As a concrete example of the system, we created a service which offers injury scene videos on the web. Through the service, we confirmed possibility of collecting users' feedback data. In this paper, we describe a method for selecting information which fits each user based on collected users' feedback data.

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Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

One problem in modeling childhood injury in everyday life stems from that we use many kinds of expressions for the same thing. This terminology problem is common in science and technology of everyday life. To solve this problem, this paper describes a method for standardizing the expression of objects, injury mechanisms, injuries, features of objects and behaviors, and so forth based on the NOMESCO code system. This information standardization enables us to integrate a model of everyday life injury with an object database and a lifelog data in order to personalize information on injury prevention. This paper describes a method for visualizing risk of children's home injuries by information integration.

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Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

A wearable sensor technology enables us to conduct scientific research on our everyday lives by describing everyday phenomena quantitatively. For example, observing and understanding children's behavior in everyday lives is required for developing preventive measures of children's injuries. This paper describes a wireless wearable electromyography (EMG) sensor for measuring behavior of children in a daily living space. The system of a wireless wearable EMG sensor developed by the authors is presented. This paper proved the effectiveness of the developed system by conducting in situ measurement of 47 "playing" nursery school toddlers. This paper also presents the analysis of the play action data and its application.

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Language：Japanese  

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Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

Measuring and understanding infant behavior in a daily living space is required for preventing infant injury. This paper describes a wearable electromyography (EMG) sensor for measuring grasping behavior of infant in a daily living space. The prototype system of a wearable EMG sensor developed by the authors is presented. This paper also describes a method for counting grasping behavior using the developed system. The results of the experiment conducted for an adult show that the system can estimate grasping times within an error of 25%. This paper also presents a downsized wearable EMG sensor.

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Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

Service is a new target of robotic computation. This paper points out that we need to correctly understand what should be computed in service in order to study technologies for supporting our everyday lives. This paper discusses a concept of a computational theory of service. To construct a computational theory of service, firstly we need to understand what are necessary services and describe the services on a computer. This work conducts a survey for 10 university students aged 20's to study human actual needs in everyday lives, and reports the analysis of the survey. This paper also describes the progress of ongoing project as our first trial for establishing a computational theory of service.

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Language：Japanese   Publisher：The Institute of Electronics, Information and Communication Engineers  

Service is a new target of computation. This paper points out that we need to correctly understand what should be computed in service in order to study technologies for supporting our everyday lives. This paper discusses a concept of a computational theory of service. To construct a computational theory of service, firstly we need to understand what are necessary services and describe the services on a computer. This work conducts a survey for 10 university students aged 20's to study human actual needs in everyday lives, and reports the analysis of the survey. This paper also describes the progress of ongoing project as our first trial for establishing a computational theory of service.

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Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

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Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

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Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

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Language：Japanese   Publisher：化学工業社  

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Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

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Language：Japanese   Publisher：一般社団法人 日本機械学会  

人の体につけた磁気式モーションセンサによる人間の日常動作収集において, 計測の頑堅性を向上させる手法を実現したので報告する。この手法は, 環境に埋め込まれた圧力センサや角度センサから検知される, 人と環境との接触位置情報を拘束条件とし, 人間骨格モデルの逆カイネマティクスを解くことで人の手足の端点位置の高信頼化を図る方法である。この方法は, 将来, 人間の日常生活動作を収集・蓄積し, ロボット制御による人間支援を実現するための基礎を提供する。

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Language：Japanese   Publisher：Information Processing Society of Japan (IPSJ)  

As a result of the rapid advancement of wireless technology, the importance of the technologies that improve the performance of TCP/IP in wireless networks is increased. However, TCP which provide reliable transport service is tuned to perform well in wired networks. Thus using TCP in wireless networks would suffer significant performance degradation. In this paper, we describe and clarify some approaches that improve the performance of TCP in wireless networks.

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Other Link： http://id.nii.ac.jp/1001/00044087/

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Language：Japanese   Publisher：一般社団法人 日本ロボット学会  

This paper proposes a monitoring system for a human respiration and posture in sleep using pressure sensor array. The proposed system consists of 221 pressure sensors (Force Sensing Resistors: FSRs) attached to the surface of the bed. Each sensor of the pressure sensor array is set 5 [cm] apart. The novel features of the proposed system lie in non-invasive and unrestrained monitoring of the human respiration and posture. Non-invasive monitoring eliminates the need for monitoring needles or catheters to invade the human body, sensors thus do not impose a physiological burden such as pain on him or her. In unrestrained monitoring, sensors and their electrical cords do not limit degrees of freedom of his or her movement. Unrestrained sensing therefore does not impose a psychological burden caused by the limitations on him or her. Experimental results demonstrate that the proposed system is feasible for monitoring a human respiration and posture for over 6 hours.

DOI： 10.7210/jrsj.16.705

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Language：Japanese   Publisher：一般社団法人 日本ロボット学会  

This paper proposes a new method of &lt;I&gt;non-invasively&lt;/I&gt; and &lt;I&gt;unrestrainedly&lt;/I&gt; diagnosis for the Sleep Apnea Syndrome (SAS) by TV image. The SAS is a disease that a patient stops breathing in sleep intermittently. A remarkable feature of the method is that the system is able to diagnose the SAS without directly attaching any sensors to the patient by utilizing image processing. This paper describes the method theoretically from the physiological point of view. The method consists of the following steps: 1) With an image processor, the system calculates optical flows from magnified images of the breast and the abdomen of the patient. 2) The system obtains medical parameters for the SAS diagnosis from the optical flows. The effectiveness of the proposed method is proved through applying an experimental system to some SAS patients with a help of doctors and nurses at a hospital.

DOI： 10.7210/jrsj.16.274

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Language：English  

DOI： 10.1163/156855399X00720

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