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전동휠체어의 주행보조를 위한 다영역 ToF 거리 센서 기반의 비정렬 상태 추정 기법에 관한 연구
신진우(J. W. Shin),김대위(D. W. Kim),이원영(W. Y. Lee),엄수홍(S. H. Eom),이응혁(E. H. Lee) 한국재활복지공학회 2022 한국재활복지공학회 학술대회논문집 Vol.2022 No.11
This paper describes a wall distortion calculation algorithm based on a single distance sensor module for walking assistance in an electric wheelchair. The proposed algorithm calculates the deviation from the wall using a single multi-domain ToF laser sensor. Calculate the angle of both end points of the measurement area from the center of the distance sensor and estimate the deviation by comparing it with the angle when it is parallel to the wall. To verify the performance of the developed technique, as a result of applying this technique to the wall at 0°, clockwise and counterclockwise 5°, 10°, 15°, and 20°, respectively, the result of the experiment was a minimum of 0.092° and a maximum of 0.628. It was confirmed that it has a high accuracy.
고령자를 위한 낙상 사고 및 사용자 설정 지역 이탈 시 문자 알림 시스템 설계 및 APP 개발
신진우(J. W. Shin),이상현(S. H. Lee),엄수홍(S. H. Eom),이철우(C. U. Lee),이응혁(E. H. Lee) 한국재활복지공학회 2017 한국재활복지공학회 학술대회논문집 Vol.2017 No.11
In this paper, we propose a system that has the function of notifying the structural characters in the fall of the elderly, To determine the fall situation, an external fall detection device is used. The system performs appropriate functions according to each situation through the information received from the outside. Through the experiment, it was confirmed that the characters including the contents of the accident situation and the accident situation were immediately sent to the guardian during the fall situation. Also, we confirmed that when a person leaves the safety zone, he / she sends a character including the location of the elderly person to the guardian.
초음파 센서 기반 분절형 캐터필러 계단 승강 로봇의 계단 치수 검출 기법에 관한 연구
신진우(Jin-woo Shin),염승호(Sung-ho Yum),이원영(Won-yung Lee),이응혁(Eung-hyuk Lee) 대한전기학회 2021 대한전기학회 학술대회 논문집 Vol.2021 No.10
In this paper, several ultrasonic sensor-based stair height and width detection techniques are proposed to generate the approach angle when the segmented caterpillar stair climbing robot enters the stairway. The location of the sensor to accurately analyze the height and width of the stairs was selected. Based on the distance data acquired through the sensor, an equation for detecting the dimension of the stairs was proposed. The performance test of the step dimension detection technique proposed in this paper was conducted. As a result of the experiment, it was confirmed that the accuracy of the step height and width detection technique was about 95.96% and 94.18%, respectively, with high performance.
ToF 거리 센서의 데이터 융합을 통한 전동휠체어의 환경판단 기법에 관한 연구
신진우(Shin Jin-Woo),이원영(Lee Won-Young),엄수홍(Eom Su-Hong),김대위(Kim Dae-We),이응혁(Lee Eung-Hyuk) 대한전자공학회 2022 대한전자공학회 학술대회 Vol.2022 No.4
In this paper, an obstacle detection technique through the fusion of a 3D ToF optical sensor module and an ultrasonic sensor is presented to detect obstacles made of light reflectors and light transmitting materials. In addition, we proposed a cliff detection technique that can detect the cliff in front of the electric wheelchair using a 3D ToF optical sensor module. For the fusion of the two sensors, a multi-distance sensor module was manufactured, and the technique was verified using this. As a result of the experiment, obstacles of various materials and distances for each obstacle were detected, and the cliff in front of the electric wheelchair was detected.