• Title/Summary/Keyword: Personal mobility

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Classification for a Standardization System for the Elderly's Necessities (고령친화용품 표준화를 위한 분류)

  • Kim, Yi-Soon;Kwon, Ja-Youn;Shin, Soon-Shik;Moon, In-Hyuk;Hwang, Lee-Cheol;Kim, Gyeong-Cheol
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.20 no.2
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    • pp.328-332
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    • 2006
  • This study aims to provide definitions and standardization for necessities that elderly people can use conveniently and properly in their daily lives and classify necessities for different purposes. First, standard terminologies were defined by reviewing the literature and the relevant laws related to daily necessities for the elders. Secondly, a concept for necessities for the elders was also defined through consultation with experts. Lastly, the elderly's necessities were selected and classified. The elderly's necessities are defined as aids that ordinary elderly people in normal aging process need for the purpose of the convenience of life and aids they wear or use to maintain or improve their health. In this study, the elderly's necessities are divided into three categories: necessities of health, necessities of Oriental medical aids and necessities of daily living. Each category is further classified as follows: Necessities of health include aids for personal medical treatment, aids for personal care and protection and aids for recreation. Necessities of Oriental medical aids include aids for personal medical treatment, aids for personal care and protection and others. Necessities of daily living include aids for personal care and protection, aids for personal mobility, aids for housekeeping, furnishings, aids for communication, information and signalling, aids for handling products and goods and aids for recreation. The classification of the elderly's necessities in this study can be used as basic information for further studies of demand for necessities for the elderly. The results will lay the foundation for a standardization system for the elderly's necessities and the development of silver industry.

Technical Development Trend and Analysis of Futuristic Personal Air Vehicle (미래형 개인용 항공기 기술개발 동향 및 분석)

  • Yi, Tae-Hyeong;Kim, Keun-Taek;Ahn, Seok-Min;Lee, Dae-Sung
    • Current Industrial and Technological Trends in Aerospace
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    • v.9 no.1
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    • pp.64-76
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    • 2011
  • The current development trend and status of a personal air vehicle, known as the novel concept of a transportation that combines a personal car with a light general aviation aircraft, is summarized to investigate its feasibility as a future transportation. In the paper, the development programs of a personal air vehicle such as AGATE, PAVE, SATS and NGATS are first summarized, and then the design, technical development and testing activities of Terrafugia's Transition and Moller International's M400 Skycar, which will be commercialized in a short time, are reviewed. Based on the assessment of technical issues with those vehicles, the key technologies for the future development of the personal air vehicle are suggested with two basic requirements of safety and mobility.

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A Study on Major Safety Problems and Improvement Measures of Personal Mobility (개인형 이동장치의 안전 주요 문제점 및 개선방안 연구)

  • Kang, Seung Shik;Kang, Seong Kyung
    • Journal of the Society of Disaster Information
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    • v.18 no.1
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    • pp.202-217
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    • 2022
  • Purpose: The recent increased use of Personal Mobility (PM) has been accompanied by a rise in the annual number of accidents. Accordingly, the safety requirements for PM use are being strengthened, but the laws/systems, infrastructure, and management systems remain insufficient for fostering a safe environment. Therefore, this study comprehensively searches the main problems and improvement methods through a review of previous studies that are related to PM. Then the priorities according to the importance of the improvement methods are presented through the Delphi survey. Method: The research method is mainly composed of a literature study and an expert survey (Delphi survey). Prior research and improvement cases (local governments, government departments, companies, etc.) are reviewed to derive problems and improvements, and a problem/improvement classification table is created based on keywords. Based on the classification contents, an expert survey is conducted to derive a priority improvement plan. Result: The PM-related problems were in 'non-compliance with traffic laws, lack of knowledge, inexperienced operation, and lack of safety awareness' in relation to human factors, and 'device characteristics, road-drivable space, road facilities, parking facilities' in relation to physical factors. 'Management/supervision, product management, user management, education/training' as administrative factors and legal factors are divided into 'absence/sufficiency of law, confusion/duplication, reduced effectiveness'. Improvement tasks related to this include 'PM education/public relations, parking/return, road improvement, PM registration/management, insurance, safety standards, traffic standards, PM device safety, PM supplementary facilities, enforcement/management, dedicated organization, service providers, management system, and related laws/institutional improvement', and 42 detailed tasks are derived for these 14 core tasks. The results for the importance evaluation of detailed tasks show that the tasks with a high overall average for the evaluation items of cost, time, effect, urgency, and feasibility were 'strengthening crackdown/instruction activities, education publicity/campaign, truancy PM management, and clarification of traffic rules'. Conclusion: The PM market is experiencing gradual growth based on shared services and a safe environment for PM use must be ensured along with industrial revitalization. In this respect, this study seeks out the major problems and improvement plans related to PM from a comprehensive point of view and prioritizes the necessary improvement measures. Therefore, it can serve as a basis of data for future policy establishment. In the future, in-depth data supplementation will be required for each key improvement area for practical policy application.

Performance Study on ZigBee-Based Wireless Personal Area Networks for Real-Time Health Monitoring

  • Koh, Bernard Kai-Ping;Kong, Peng-Yong
    • ETRI Journal
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    • v.28 no.4
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    • pp.537-540
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    • 2006
  • When multiple ZigBee wireless personal area networks (WPANs) are in close proximity to each other, contentions and collisions in transmissions will lead to increased packet delays. However, there is no existing study on how delay performance would be affected in a crowded real-life environment where each person walking down a busy street would be wearing a ZigBee WPAN. This letter studies the use of ZigBee WPANs in such a real-life environment for real-time heart beat monitoring. To be pragmatic, we derived a mobility pattern from the analysis of a real-life video trace. Then, we estimated the delay performance from the video trace by combining data collected from ZigBee experiments. The results show that the 300 ms packet delay requirement will not be met for only 11% of the time. When failure occurs, it will last for an average duration of 1.4 s.

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Structural Sizing for Optionally Piloted PAV Preliminary Design (유무인 겸용 개인항공기(OPPAV) 개념설계를 위한 구조물 사이징)

  • Kim, Sung Joon;Lee, Seung-gyu
    • Journal of the Korean Society for Aviation and Aeronautics
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    • v.28 no.1
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    • pp.83-89
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    • 2020
  • Personal air vehicle (PAV) is considered by aviation engineers as a solution to provide fast urban mobility. The purpose of designing a optionally piloted PAV (OPPAV) is to provide an individual air vehicle. The airframe structure is designed with high strength carbon fiber composite to reduce the aircraft weight. This paper presents an overview of sizing process for OPPAV at the conceptual design level. It consists of load analysis, structural sizing and development of efficient design allowable values for composite material. The weight is estimated based on sizing process, including strength and stiffness requirements. The objective of this study is to present a overview of structural sizing procedure and fast tool for preliminary design phases.

A Study on the Adoption Factors and Performance Effects of Mobile Sales Force Automation Systems (모바일 SFA(mSFA) 시스템의 수용 요인 및 도입 성과에 관한 연구)

  • Kim, Dong-Hyun;Lee, Sun-Ro
    • Korean Management Science Review
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    • v.24 no.1
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    • pp.127-145
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    • 2007
  • This study attempts to examine the acceptance factors of mSFA systems based on the innovation diffusion and technology acceptance model, and to measure the performance effects of mSFA systems using BSC metrics. Results show that (1) the characteristics of mobility and interactivity have positive impacts on perceived usefulness, ease of use, and professional fit. But the characteristics of personal identity were not perceived as useful due to users' negative feelings about privacy infringement and surveillance. (2) Job fit has positive impacts on perceived usefulness and professional fit. (3) Perceived usefulness, ease of use, and professional fit positively influence the degree of users' dependence on mSFA systems, which have positive impacts on users' performance measured by the personal BSC metrics including perspectives of finance, customer, internal process, and learning and growth.

A Design for PCS Network and Analysis of Handover Processing Capacity (개인통신서비스 망 설계와 핸드오버 처리용량 분석)

  • Jang, Hee-Seon;Lim, Seog-Ku;Yu, Jea-Hoon;Lee, Yoon-Ju
    • Journal of Korean Institute of Industrial Engineers
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    • v.22 no.4
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    • pp.551-565
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    • 1996
  • We present the required handover capacity of personal communication service exchange(PCX). We use the flow-based mobility model. The dimension of PCX area and the number of radio port controller(RPC) in a PCX are determined according to the traffic carrying capacity of switching system and RPC. For the rectangular or square-shaped PCX/RPC area and the personal communication service environment with pedestrian traffic, we perform numerical computations to investigate the sensitivity to cell size, portable station(PS) terminating traffic, its density, and its average speed. The results how that the size of PCX/RPC area decreases as the PS terminating traffic and the PS density increase, and the PCX handover capacity required is more than 73,000 in the number of transactions per hour.

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Design and Implementation of Intelligence Web Conference with Personal Mobility (개인 이동성을 지닌 지능형 웹 컨퍼런스 시스템의 설계 및 구현)

  • 정동열;백소영
    • Proceedings of the Korean Information Science Society Conference
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    • 2002.04a
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    • pp.379-381
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    • 2002
  • 본 논문은 한국전산원 차세대 인터넷 응용서비스 2차 과제로 선정된 "개인 이동성을 지닌 지능형 웹 컨퍼런스 개발"을 수행함에 따른 결과를 정리했다. 본 논문에서는 차세대 인터넷 환경에 적합한 고품질의 웹 컨퍼런스 시스템의 설계 및 구현에 대해 자세히 기술한다. 본 시스템은 한마디로 요약하면 SIP 기반의 웹 컨퍼런스로, 인스턴스 메신저, 회의 클라이언트, SIP 서버, 회의 서버 그리고 위치 서버로 구성된다.

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Analysis of SIP Transaction through the Call-Flow (Call-Flow를 통한 SIP Transaction 분석)

  • 김준일;노강래;이종열;신동일;신동규
    • Proceedings of the Korean Information Science Society Conference
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    • 2002.04a
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    • pp.526-528
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    • 2002
  • SIP는 간단한 텍스트 기반의 응용계충 프로토콜로서, H.323을 대체할 수 있는 프로토콜이다. SIP는 인터넷 환경에 그대로 접목 할 수 있고, 새로운 기능 및 부가서비스의 제공이 용이하다는 장점을 가지고 있다. SIP 프로토콜은 요청메시지와 그에 대한 응답으로 구성되는 Request-Response방식이다. SIP의 장점은 유일한 개인 ID를 이용하여 장소와 단말기에 구애를 받지 알고 SIP서비스를 제공받을 수 있는 Personal Mobility Service에 있다. 본 논문에서는 User Agent 사이에 이루어지는 SIP 트랜잭션 (Transaction)을 기본적인 Call-Flow를 통해서 살펴보고자 한다.

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SELAX Technology for Poly-Si TFTs Integrated with Amorphous-Si TFTs

  • Kaitoh, Takuo;Miyazawa, Toshio;Miyake, Hidekazu;Noda, Takeshi;Sakai, Takeshi;Owaku, Yoshiharu;Saitoh, Terunori
    • 한국정보디스플레이학회:학술대회논문집
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    • 2008.10a
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    • pp.903-906
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    • 2008
  • We developed the advanced LTPS (A-LTPS) manufacturing process. The a-Si TFT process was combined with selectively enlarging laser crystallization (SELAX) technology to improve the carrier mobility in the region where the peripheral circuits are to be fabricated. A 2.4-inch IPS-pro LCD panel for personal digital assistant use was successfully fabricated using the developed technology.

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