• Journal of the Korean Institute of Telematics and Electronics S
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• v.35S no.11
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• pp.75-87
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• 1998

KARES (KAIST Rehabilitation Engineering System) is the rehabilitation robot system in the type of the 6 degrees of freedom robot arm mounted on the wheelchair, in order to assist the independent livelihood of the disabled and the elderly. The interface device for programming and controlling of the robot arm is essential in the rehabilitation robotic system. Specially, in the case of the manual operation of the robot arm, the user has the burden of cognition and the difficulty for the operation of the robot arm. As a remedy, color vision system for the autonomous performance of jobs is proposed, and four basic desired jobs are specified. By mounting the camera in eye-in-hand type, color vision system for KARES is set up. The desired jobs for picking up the target and moving it to the user's face for drinking are successfully performed in real-time at the indoor environment.

• Journal of rehabilitation welfare engineering & assistive technology
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• v.5 no.1
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• pp.111-115
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• 2011

In this paper, we present a novel time-synchronization method for distributed systems to measure the body motion. The distributed system scheme is considered because human data acquisition systems tend to have a centralized controller with sensors connected with a long range of electric wires running through the subject's body, which results in inconvenience. Utilizing simple key switches and digital input ports for reading the key, the proposed method requires a very simple hardware structure, which means less power consumption compared with the well-known ubiquitous sensor network. After measuring the motion data as well as the synchronization pulses, the proposed method compensates, in offline, the difference of the sampling instance between the two systems by scaling the time difference. The paper presents experimental results to show the validity of the proposed method.

• ICROS
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• v.11 no.2
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• pp.34-53
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• 2005

• Journal of Digital Convergence
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• v.13 no.2
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• pp.381-391
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• 2015

The purpose of this study was to investigate the trends in research on the effects of virtual reality technology applied to rehabilitation for disabled. I have collected 60 papers published in Korea(2000-2014), and analyzed it by the P.I.C.O. method. As a result, adults and the elderly are most common subjects, and projection type has been used frequently in researches. It were included mostly balance, upper extremity function, and gait that the dependent variables represents the intervention effects. I interpreted it as the ICF factors. So, research topics were the most common mobility, in contrast to educational, vocational, recreational area as dealing with the participation area is very small. In the future, we should focused on social aspects for useful intervention in real life of people with disabilities based on virtual reality technology, and virtual reality technology should be easy to apply in terms of cost and accessibility.

• Proceedings of the Korean Society of Computer Information Conference
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• 2014.07a
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• pp.21-24
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• 2014

본 연구는 뇌손상(뇌졸중, 외상성 뇌손상, 뇌성마비 등)으로 인하여 손의 능동적 움직임이 결여되어 발생하는 관절의 구축, 근육의 단축, 근육의 탄력성 저하 등의 문제점을 분석하여 인체 역학적 모델에 따른 과학적 설계를 기반으로 환자의 손 기능 회복을 위하여 로봇 기술과 스마트폰의 융합을 통한 재활 로봇 보조 치료기를 설계하고 구현하였다. 제안된 시스템은 일반적인 근 경직을 치료하는 방법을 응용하여 IT 기술과 로봇기술을 융합하여 치료사들의 부담을 덜어 주고, 환자들에게 오랫동안 정확한 운동을 반복적으로 할 수 있도록 하는데 목적이 있다. 하나의 구동기로 2자유도의 움직임을 조절 할 수 있는 링크 매커니즘과 링크의 길이를 조절하여 신전(extension)과 과신전(Hyperextension)의 범위 조절이 가능하도록 로봇 플랫폼을 설계하였다. 또한 환자의 재활정도 및 상태에 적합한 운동속도, 운동반복횟수 등을 손쉽게 조작할 수 있는 등의 개인 맞춤형 재활훈련이 가능한 사용자 인터페이스를 설계 및 구현하였다.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.21 no.2
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• pp.117-124
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• 2021

This study is a study to recognize hand movements using a neural network for wrist rehabilitation. The rehabilitation of the hand aims to restore the function of the injured hand to the maximum and enable daily life, occupation, and hobby. It is common for a physical therapist, an occupational therapist, and a security tool maker to form a team and approach a doctor for a hand rehabilitation. However, it is very inefficient economically and temporally to find a place for treatment. In order to solve this problem, in this study, patients directly use smart devices to perform rehabilitation treatment. Using this will be very helpful in terms of cost and time. In this study, a wrist rehabilitation dataset was created by collecting data on 4 types of rehabilitation exercises from 10 persons. Hand gesture recognition was constructed using a neural network. As a result, the accuracy of 93% was obtained, and the usefulness of this system was verified.

• Proceedings of the Korean Information Science Society Conference
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• 2002.04a
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• pp.424-426
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• 2002

기존의 컴퓨터 시스템보다 한정된 자원을 갖는 임베디드 시스템은 사용이 늘어나고 있지만 효율적인 관리 시스템이 부족하였다. 본 논문에서는 정보가전기기, PDA, 휴대폰등과 같은 인터넷으로 연결된 임베디드 시스템으로 구성된 분산 시스템 환경을 가정하고 임베디드 시스템의 효율적인 관리를 위한 관리 시스템 프레임워크를 제안하고 이를 구현한다. 제안하는 임베디드 시스템 관리 프레임워크는 이의 응용을 통해 임베디드 시스템의 상태를 모니터링하고 시스템의 성능저하, 작동정지를 사전에 방지하는 소프트웨어 재활 기법을 사용하여 임베디드 시스템의 관리 비용을 절감하고 성능을 향상시킬 수 있게 된다.

• Journal of rehabilitation welfare engineering & assistive technology
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• v.5 no.1
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• pp.53-58
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• 2011

Recently, the welfare of the elderly and the disabled has been becoming more important. For this reason, many facilities to accommodate them are being constructed in government and public offices. However, the facilities are usually just installed without providing information to the elderly and the disabled. So they are still faced with many difficulties due to the insufficient information on these new facilities. In this study, we implemented the information system of facilities which provides information to the elderly and the disabled through web pages. The objective of this system is to provide visual information about facilities. This system uses web service technology for effective management of data. It is being offered in Incheon's local office. Also, we see a high level of system satisfaction via a survey.

• Journal of the Korean Society for Precision Engineering
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• v.26 no.4
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• pp.64-71
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• 2009

A 3-D rehabilitation robot system is developed in this paper. The robot system is for the rehabilitation of upper extremities, especially the shoulder and elbow joints, and has 3-D workspace for enabling occupational therapy to recover physical functions in activities of daily living(ADL). The rehabilitation robot system, which is driven by actuators, has 1 DOF in horizontal rotational motion and 2 DOF in vertical rotational motion, where all actuators are set on the ground. Parallelogram linkage mechanisms lower the equivalent inertia of the control elements as well as control forces. Also the mechanisms have high mechanical rigidity for the end effector and the handle. Passive motion mode experiments have been performed to evaluate the proposed robot system. The results of the experiments show and excellent performance in simulating spasticity of patients.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2011.11a
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• pp.292-294
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• 2011

별개의 컨트롤러 없이 사용자의 신체만을 이용하여 다양한 게임과 엔터테인먼트를 경험할 수 있는 키넥트에 대한 관심이 높아지고 있다. 최근 재활 치료를 필요로 하는 환자가 늘어남에 따라 본 논문에서는 운동 장애를 가진 환자들이나 노인들이 고가의 장비 또는 다른 사람의 도움 없이 키넥트와 컴퓨터만을 이용하여 손 재활 운동을 할 수 있도록 하는 것을 목적으로 한다. 키넥트 영상으로부터 손 영역을 찾고, 영역의 윤곽선을 추출 한다. 이 때 손가락 중심선을 찾아 손가락과 손바닥 영역을 구분해 준다. 손가락의 개수를 확인하기 위해서 손의 중심점과 끝 점을 찾은 후 두 점을 연결함으로써 손가락의 개수를 확인할 수 있고, 실시간으로 손의 움직임을 감지하도록 한다.