• Industrial Engineering and Management Systems
• /
• 제16권1호
• /
• pp.92-102
• /
• 2017

In this paper, we consider a typical health care system via the help of Wireless Sensor Network (WSN) for wireless patient tracking. The wireless patient tracking module of this system performs localization out of samples of Received Signal Strength (RSS) variations and tracking through a Particle Filter (PF) for WSN assisted by multiple transmit-power information. We propose a modified PF, Kullback-Leibler Distance (KLD)-resampling PF, to ameliorate the effect of RSS variations by generating a sample set near the high-likelihood region for improving the wireless patient tracking. The key idea of this method is to approximate a discrete distribution with an upper bound error on the KLD for reducing both location error and the number of particles used. To determine this bound error, an optimal algorithm is proposed based on the maximum gap error between the proposal and Sampling Important Resampling (SIR) algorithms. By setting up these values, a number of simulations using the health care system's data sets which contains the real RSSI measurements to evaluate the location error in term of various power levels and density nodes for all methods. Finally, we point out the effect of different power levels vs. different density nodes for the wireless patient tracking.

• Industrial Engineering and Management Systems
• /
• 제7권2호
• /
• pp.171-181
• /
• 2008

Home care, known also as domiciliary care, is part of the community care service that is a responsibility of the local government authorities in the UK as well as many other countries around the world. The aim is to provide the care and support needed to assist people, particularly older people, people with physical or learning disabilities and people who need assistance due to illness to live as independently as possible in their own homes. It is performed primarily by care workers visiting clients' homes where they provide help with daily activities. This paper is concerned with the dispatching of care workers to clients in an efficient manner. The optimized routine for each care worker determines a schedule to achieve the minimum total cost (in terms of distance traveled) without violating the capacity and time window constraints. A collaborative population-based meta-heuristic called Particle Swarm Optimization (PSO) is applied to solve the problem. A particle is defined as a multi-dimensional point in space which represents the corresponding schedule for care workers and their clients. Each dimension of a particle represents a care activity and the corresponding, allocated care worker. The continuous position value of each dimension determines the care worker to be assigned and also the assignment priority. A heuristic assignment scheme is specially designed to transform the continuous position value to the discrete job schedule. This job schedule represents the potential feasible solution to the problem. The Earliest Start Time Priority with Minimum Distance Assignment (ESTPMDA) technique is developed for generating an initial solution which guides the search direction of the particle. Local improvement procedures (LIP), insertion and swap, are embedded in the PSO algorithm in order to further improve the quality of the solution. The proposed methodology is implemented, tested, and compared with existing solutions for some 'real' problem instances.

• 한국보육지원학회지
• /
• 제9권1호
• /
• pp.51-79
• /
• 2013

이 연구는 노동권 부모권 관점의 일-가족양립정책을 통해서 여성이 노동자로서 어떻게 복지국가에 통합되어 가는지를 살펴보기 위함이었다. 일-가족양립정책의 노동권과 부모권이 국가차원에서 어떻게 구성되는지는, 돌봄을 둘러싼 젠더체계를 중심으로 돌봄의 사회화방식(탈가족화 탈상품화 가족화 상품화전략)을 통해서 살펴보았다. 실제로 영국과 스웨덴은 돌봄의 젠더체계를 기본으로 돌봄의 책임주체가 다르게 상정되면서, 돌봄의 사회화도 다른 성격으로 발전하였고, 이것이 여성과 남성의 노동권과 부모권에 주는 함의도 다른 결과를 가져온다는 것을 보여주었다. 특히 그 사회에서 여성을 노동자로 보는가, 혹은 돌봄자(carer)로 보는가는 돌봄의 사회화가 어떻게 발전되는가에 있어 중요한 출발점이었다. 돌봄이 사적문제로 한정되는 영국은 당연히 일과 가족의 양립문제는 개인과 시장이 풀어야 할 문제로 가치가 축소되었다. 스웨덴 사례는 돌봄의 사회적 가치가 합의된 상태에서 탈상품화를 통한 남성의 가족화와 탈가족화를 동반한 여성의 상품화 전략만이 실질적인 노동권과 부모권을 획득하는 수단이 될 수 있음을 보여주고 있다.

• Journal of Nutrition and Health
• /
• 제29권7호
• /
• pp.830-838
• /
• 1996

The purpose of this study were to : a) examine the current foodservice management practices by different types of elder-care sites, b)evaluate the attitudes of recipients of meal service programs, and c) provide feedback for the efficient and effective foodservice management of elder-care sites in Korea. A total of 91 elderly congregate sites was analyzed in Survey 1 and opinons of 190 recipients were surveyed in Survey 2. According to the result of meal cost analysis, the meal cost per a day was ranged from ￦728 to ￦5,500. Only 16.5% elder-care sites had one dietitian due to the lack of budges and the isolated geographical location of sites. These results suggested that financial and dystematical supports by the government would be very necessary to meet the goal of nutritional-balanced meal services at congregate sites. The survey results of recipients at sites, the mean of meal satisfaction score was rated 3.63 at the five-point scales. Significante differences were found between dependent variables(food, convenience, atmospere, menu, facility, and service) and independent variables(site type, gender, living years at sites, and health status). Thus, foodservice managers must consider characteristics of participants for menu planning, service, and distribution.

• 간호행정학회지
• /
• 제13권3호
• /
• pp.345-351
• /
• 2007

Purpose: The purpose of this study was to identify the relationship between patient characteristics and patient satisfaction. Methods: A cross-sectional questionnaire survey was conducted in an acute care hospital. The subjects were 317 patients discharged from general medical and surgical nursing care units during September, 2005. Patient satisfaction was measured using the short-form satisfaction scale of Hwang and Park(2001). Additional information about patient characteristics, including general demographics and health care utilization variables, was collected from the hospital information systems. Multiple regression analysis was performed to determine patient characteristics influencing patient satisfaction. Results: Patients were satisfied with hospital care with an average of 4.10 on a five-point Likert scale. Patient characteristics explained 13.5% of the variance of patient satisfaction. The significant factors influencing patient satisfaction were patients' age and perceived health status. There was no significant relationship between structural variables and patient satisfaction. Conclusion: This study showed that patients' characteristics were significant factors explaining patient satisfaction. Therefore, these characteristics should be adjusted in reporting patient satisfaction as an indicator for hospital-level or department-level rating.

• 산업공학
• /
• 제23권3호
• /
• pp.246-256
• /
• 2010

As wireless and mobile technologies have advanced significantly, lots of large sized healthcare organizations have implemented so called mobile hospital (m-Hospital) which provides a location independent and point of care (POC) clinical environment. Implementation of m-Hospital enhances quality of care because health professionals such as physicians and nurses can use hospital information systems at the very place where patients are located without any delay. This paper presents a real-time patient monitoring system based on wireless network technologies. A general framework for the patient monitoring process is introduced and the architecture and components of the proposed monitoring system is described. The system collects and analyzes biometric signals of in-patients who suffer from cancer. Specifically, it continuously monitors oxygen saturation of patients in bed and alarms health professionals instantly when an abnormal status of the patient is detected. The monitoring system has been used and clinically verified in a university hospital.

• 한국콘텐츠학회논문지
• /
• 제11권4호
• /
• pp.312-320
• /
• 2011

이 논문에서는 일개 POC(Point Of Care) 시스템을 사용하는 의료기관을 중심으로 의약품 처방조제지원 시스템(Clinical Decision Support System, CDSS)과 조직성과와의 관계를 규명하는 것에 목적을 두고 있다. 이를 위하여 정보시스템 평가요소에 대해 정의를 내리고, CDSS의 성과 평가 모형을 제시하여 설문조사 분석을 통해 의약품 처방조제지원시스템의 도입 효과를 밝히고자 하였다. 분석결과 시스템 품질을 제외하고는 각 평가 영역들 사이에 인과성이 존재하는 것으로 분석되었으며, 통계적으로 유의하게 지지되는 것으로 분석되었다. 평가모형 검증결과 의약품처방최적화를 위한 CDSS의 시스템 품질이 사용자 만족도에 영향을 미친다는 근거를 발견할 수 없었다. 그러나 정보품질이 사용자의 만족도에 긍정적인 영향을 미치며 사용자 만족은 조직성과에 긍정적인 영향을 미치는 것으로 나타났다.

• 소성∙가공
• /
• 제11권2호
• /
• pp.108-113
• /
• 2002

The application fields of medicine and biology are spotlighted because of the increasing concentration of health and the abundance of life. MEMS is very good solution in this fields for the concept of point of care which makes systems more useful and spread wide. This paper shows the major fabrication schemes and application fields of microelectromechanical system specially in medicine and biology fields.

• 전자공학회지
• /
• 제31권1호
• /
• pp.58-72
• /
• 2004

Smart sensors and biochip technologies have received a great deal of attention in recent years not only because of the enormous potential markets in the healthcare expenditures but more importantly because of its great impact on the quality of human life in the future. Collaborative research among BT (Bio Technologies), IT (Information Technologies) and NT (Nano Technologies) will bring us a new paradigm of the healthcare services. Examples include disease prediction based on the genetic tests, personal medicines, point-of-care analysis, rapid and sensitive infectious disease diagnostics, environmental monitoring for chemical or biological warfares, intelligent drug delivery systems etc. In this report, recent accomplishment in the research area on biosensors, DNA chips, Protein Chips and Lab-on-a-chips are reviewed.

• ETRI Journal
• /
• 제37권4호
• /
• pp.766-771
• /
• 2015

Robust motion estimation for human-computer interactions played an important role in a novel method of interaction with electronic devices. Existing pose estimation using a monocular camera employs either ego-motion or exo-motion, both of which are not sufficiently accurate for estimating fine motion due to the motion ambiguity of rotation and translation. This paper presents a hybrid vision-based pose estimation method for fine-motion estimation that is specifically capable of extracting human body motion accurately. The method uses an ego-camera attached to a point of interest and exo-cameras located in the immediate surroundings of the point of interest. The exo-cameras can easily track the exact position of the point of interest by triangulation. Once the position is given, the ego-camera can accurately obtain the point of interest's orientation. In this way, any ambiguity between rotation and translation is eliminated and the exact motion of a target point (that is, ego-camera) can then be obtained. The proposed method is expected to provide a practical solution for robustly estimating fine motion in a non-contact manner, such as in interactive games that are designed for special purposes (for example, remote rehabilitation care systems).