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편마비 환자의 보행 자세 교정을 위한 보행 양상 검출 장치(II)
박준호(J. H. Park),조종만(J. M. Cho),최정현(J. H. Choi) 한국재활복지공학회 2008 한국재활복지공학회 학술대회논문집 Vol.2008 No.11
This paper describes the design and development of gait phase analyzing devices which are key components consisting of the gait training equipment for hemiplegia patients. The devices should be durable against the friction of rotating rubber belt of the gait training equipment and robust to the mechanical vibration caused by the operation of the gait training equipment so that they can detect the gait phase accurately during training. We could develop the gait phase analyzing device that can satisfy these criteria by designing and implementing of two new devices, a magnet shoe and magnetic sensor array board. The magnet shoe has three rows of magnetic sensor array and each row has different number of permanent magnets so that which parts of the shoe are touched to the magnet sensor array board. In addition, the shoe was designed as an overshoe so that a patient can attach and detach the shoe easily. The magnet sensor array board has 1,620 magnetic sensors which are arranged in 30 rows and each row consists of 54 magnetic sensors where the distance between sensors is 2 ern in horizontal and vertical direction. The experiment results show that they have spatial resolution of I cm in horizontal and vertical directions and temporal resolution of 20 frames per second of the gait phase. The gait phase analyzing devices developed in this study were incorporated into the design . of gait training equipment for hemiplegiapatients and they showed feasibility in practical operating environment. They also can be applied to other similar equipment which needs the gait phase analysis function.
박준호(J. H. Park),이원교(W. K. Lee),최인혁(I. H. Choi),이동일(D. I. Lee) 대한전기학회 2007 대한전기학회 학술대회 논문집 Vol.2007 No.11
송배전용 설비에 사용되는 옥외 절연물로는 porcelain이나 glass insulator가 주로 사용되어 왔지만 최근 신소재의 발달로 가볍고 절연성능이 우수한 폴리머애자(composite insulator)가 보편화되기 시작하였다. 고분자 소재를 이용한 대형절연물의 제조 기술이 성숙되어 가고 있고, 생산 원가 면에서도 porcelain보다 유리하여 이미 폴리머애자의 가격이 저렴해지고 있는 실정이다. 더욱이 국토가 좁아 송배전 설비의 시설환경이 좋지 않고(산악, 도서) 선진사회화 되면서 인건비 상승으로 인하여 취급이 용이하고 경량인 이들 폴리머애자의 장점이 부각되는 시점에 와 있다. 본 논문은 철탑에서 도체를 지지하고 있는 기존의 무거운 금속 암과 애자련 대신 전기적 특성과 내환경성이 우수한 암 절연물을 사용한 154㎸급 철탑 설계 방법과 컴팩트화에 대한 방법을 제시하고자 한다.
최정현(J. H. Choi),조종만(J. M. Cho),박준호(J. H. Park) 한국재활복지공학회 2008 한국재활복지공학회 학술대회논문집 Vol.2008 No.11
In this study we developed an improved model of the previous automatic ankle stretching device (ASD) by using electro-mechanical cylinders which have built-in encoders. Also, a user friendly human-computer interface (Her) device was developed and employed for this device to provide patients with easy access to the ASD and effective visual feedback of the training activity. It can reduce the workload of physical therapists and improve the effect of rehabilitation exercise for lower limb monoplegia patients.