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밭 노지 작업을 위한 모듈형 농업 로봇 플랫폼 개선에 관한 연구
김동우(Dongwoo Kim),홍형길(Hyunggil Hong),조용준(Yongjun Cho),윤해룡(Haeyong Yun),오장석(Jangseok Oh),강민수(Minsu Gang),박희창(Huichang Park),서갑호(Kabho Seo) 한국기계가공학회 2021 한국기계가공학회지 Vol.20 No.10
Our study introduces an improved modular agricultural platform to provide convenience to agricultural workers. We upgrade the platform design in three parts, namely, by adding a 458 pattern tire, electricity control, and four-wheel steering function, to improve the platform performance. Results showed that the upgrades enhanced the platform performance and reduced its overall weight as compared with the existing platform. To demonstrate the performance of our improved platform, we conducted five types of experiments with respect to the climbing angle, variable width, attitude control, speed, and obstacle passing.
A Study on Bird Deterrent System to Improve the Performance of Repelling Harmful Birds
Yongjun Cho(조용준),Haeyong Yun(윤해룡),Hyunggil Hong(홍형길),Jangseok Oh(오장석),Senongyong Woo(우성용),Suhwan Song(송수환),Dongwoo Kim(김동우),Minsu Gang(강민수),Kabho Seo(서갑호),Youngtae Lee(이영태),Jaedoo Jo(조재두) 한국기계가공학회 2020 한국기계가공학회지 Vol.19 No.8
We improved the sound pressure of the speaker and allowed the speaker to rotate 360 degrees to improve the effectiveness of the acoustic type bird repellent system. The prototype of the bird repellent system was developed by evaluating sound pressure characteristics by distance and direction and installing orchards. As a result of the evaluation, the extermination sound pressure increased from a distance of about 30 m to a maximum of 60 m, and through the rotary speaker, the extermination distance could be widened in all directions without specific direction.
조용준(Yongjun Cho),윤해룡(Haeyong Yun),홍형길(Hyunggil Hong),오장석(Jangseok Oh),박희창(Hui Chang Park),강민수(Minsu Kang),박관형(Kwanhyung Park),서갑호(Kabho Seo),김순덕(Sunduck Kim),이영태(Youngtae Lee) 한국기계가공학회 2021 한국기계가공학회지 Vol.20 No.9
We developed a platform that was capable of autonomous steering in a furrow environment. It was developed to autonomously control steering by recognizing the furrow using a laser distance, three-axis tilt, and temperature sensor. The performance evaluation indicated that the autonomous steering success rate was 99.17%, and it was possible to climb up to 5° on the slope. The usage time was approximately 40 h, and the maximum speed was 6.7 ㎞/h.