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ICT 융합기술을 활용한 암반특성 예측기능을 가진 유압 브레이커 개발에 관한 연구
윤복중(Bok Joong Yoon),이길수(Kil Soo Lee),임훈(Hoon Lim),이호연(Ho Yeon Lee),이명규(Myung Gyu Lee),권혁진(Hyuk Jin Kwon),김갑태(Kab Tae Kim),주진무(Jin Moo Joo) 대한기계학회 2017 大韓機械學會論文集A Vol.41 No.7
고유가, 환경규제 등의 국제무역환경 변화에 따라 수출주력상품인 유압 브레이커의 고부가가치화를 위하여 지능형 전자제어유압시스템 분야인 ICT 융합기술을 활용하여 암반특성을 예측하고 최적모드(다단형)로 구동하는 지능형 파쇄기술 및 에너지 효율을 극대화할 수 있는 유압 브레이커 개발에 관한 연구를 수행하였다. 본 연구에서는 암반의 강도에 따라 최적의 타격력을 제공하기 위해 근접센서를 이용해 암반 타격 시 피스톤의 하강 깊이를 측정하고 이를 통해 암반의 특성을 판별하여 타격력을 결정하는 피스톤 스트로크의 길이를 솔레노이드 밸브를 이용해 제어하였다. 다단 타격시스템을 위해 컨트롤러와 디스플레이/조작장치를 개발하였고, 무선통신을 이용하여 상호 정보교환이 가능하도록 하였다. 최종적으로 암반 강도에 따라 3단으로 타격할 수 있는 제어시스템을 개발하였고, 실차실험을 통해 이를 검증하였다. We have carried out the development for hydraulic breaker which can be operated by optimal mode with ICT convergence technology. This developed system can predict the rock properties. Moreover, this system can maximize the energy efficient with intelligent control of hydraulic system. In order to provide the optimal impact force, this system can measure the descending depth of piston with the proximity sensor and discriminate the rock properties with the measuring data and control the piston stroke using solenoid valve eventually. In addition, we have developed the controller, display module and operating device for cascade (multi-level impact) system and applied the module which can communicate each system by wireless communications. In conclusion, the control system which can control the multi-level impact in accordance with strength of rocks has been developed and approved by several field tests.
이종센서를 활용한 재난재해 현장에서의 지형인지 기술 개발
서명국(Myoung Kook Seo),윤복중(Bok Joong Yoon),이길수(Gil Soo Lee),신희영(Hee Young Shin),임훈(Hoon Lim),최창수(Chang Soo Choi) 대한기계학회 2017 대한기계학회 춘추학술대회 Vol.2017 No.11
Special purpose machines have been recently developed to support rescue and initial recovery in the event of a disaster or accident. The machine can perform various tasks such as holding the obstacle, spreading it on both sides. And It can move the unstable field freely using the four crawlers. On the other hand, the driver is difficult to grasp the topographical information on the moving route only by the visual or image due to the residue of building, dust, weather, etc. This may result in delays in responding to the initial operation of the machine or a second accident such as an overturning. This paper develops terrain cognitive technology using heterogeneous sensors such as image sensor and distance measurement sensor to provide driver with topographical information of movement route. This paper proposes two types topography recognition methods.
LiDAR 기반 차량-인프라 연계 상황인지를 통한 사고다발지역에서의 차량 종방향 능동제어 시스템 연구
김재환(Jae-Hwan Kim),이제욱(Je-Wook Lee),윤복중(Bok-Joong Yoon),박재웅(Jae-Ung Park),김정하(Jung-HaKim) 제어로봇시스템학회 2012 제어·로봇·시스템학회 논문지 Vol.18 No.5
This is a research of an adaptive longitudinal control system for situated cognition in wide range, traffic accidents reduction and safety driving environment by integrated system which graft a road infrastructure"s information based on IT onto the intelligent vehicle combined automobile and IT technology. The road infrastructure installed by laser scanner in intersection, speed limited area and sharp curve area where is many risk of traffic accident. The road infra conducts objects recognition, segmentation, and tracking for determining dangerous situation and communicates real-time information by Ethernet with vehicle. Also, the data which transmitted from infrastructure supports safely driving by integrated with laser scanner"s data on vehicle bumper.