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비정형 작업 대상물의 고속 고정밀 처리를 위한 작업 분배 알고리즘 설계 및 구현
정예찬(Ye-Chan Jeong),정학상(Hak-Sang Jung),송인설(In-Sul Song),정일균(Il-Kyun Jung),임선(Sun Lim) 대한전자공학회 2017 대한전자공학회 학술대회 Vol.2017 No.6
Robots has been widely used in the industrial automation systems. Thus Job Distribution Algorithm becomes more important since it boosts work performance and reduces defect rate. Our research suggests 5 different methods of Job Distribution Algorithm and conducts experiment in the simulated environment. The results are analyzed through experiment.
0.18um CMOS 공정을 사용한 카오스 난수 발생기 분석
정예찬 ( Ye-chan Jung ),차민드라 ( Chamindra Jayawickra ),알라딘 ( Alaaddin Al-shidaifat ),이송욱 ( Song-wook Lee ),니한 ( Nihan Kahrama ),송한정 ( Han-jung Song ) 한국산업융합학회 2021 한국산업융합학회 논문집 Vol.24 No.5
As times goes by, a ton of electric devices have been developing. Nowadays, there are many personal electric goods that are connected each other and have important private information such as identification, account number, passwords, and so on. As many people own at least one electric device, security of the electric devices became significant. To prevent leakage of the information, study of Chaotic TRNG, “Chaotic True Random Number Generator”, protecting the information by generating random numbers that are not able to be expected, is essential. In this paper, A chaotic TRNG is introduced is simulated. The proposed Chaotic TRNG is simulated with Virtuoso &, a circuit design program of Cadence that is a software company. For simulating the mentioned Chaotic TRNG, setting values, 0V low and 3V high on Vpulse, 1.2V on V-ref, 3.3V on VDD, and 0V on VSS, are used.
YOLOPv2 를 활용한 차선 탐지 기반 자율주행 구현
박준혁 ( Joon-hyuk Park ),이재인 ( Jae-in Lee ),정예찬 ( Ye-chan Jung ),이시우 ( Si-woo Lee ),전재욱 ( Jae-wook Jeon ) 한국정보처리학회 2023 한국정보처리학회 학술대회논문집 Vol.30 No.2
본 연구에서는 전동 차량의 자율주행 기능 구현을 위한 방법을 제시한다. 주요 구성 요소로는 카메라, PC, 아두이노, 모터드라이브, 가변저항 등이 사용되었다. 카메라를 통해 데이터를 수집한다. YOLOPv2 lane detection 딥러닝 모델을 사용하여 차선을 탐지하고, 후처리 과정을 통해 주행 경로를 정확히 인식한다. RANSAC 알고리즘을 활용하여 outlier 에 강건한 2 차 함수 회귀를 수행하고, 이를 바탕으로 주행 중 필요한 정보를 파악한다. 이러한 정보를 바탕으로 차량의 조향각을 조절하여 안전하고 효율적인 자율 주행을 구현하였다.
돼지 운송 차량과 운전자에 대한 도축장에서의 세척 및 소독 과정에 대한 고찰
김환주 ( Hwan-ju Kim ),김승채 ( Seung-chai Kim ),정창기 ( Chang-gi Jeong ),김재엽 ( Jae-yeob Kim ),김재홍 ( Jae-hong Kim ),백예찬 ( Ye-chan Baek ),정용진 ( Yong-jin Jung ),김원일 ( Won-il Kim ) 한국동물위생학회(구 한국가축위생학회) 2021 韓國家畜衛生學會誌 Vol.44 No.1
Various infectious diseases have threatened swine industries in Korea. One of the major risk factors of disease spread is livestock transport vehicle. For this reason, all abattoirs are required by law to have vehicle washing and disinfection facilities. However, detailed guidelines for cleaning and disinfection procedures were not provided. So in this study, assessment by visual observation was conducted to evaluate how well the cleaning and disinfection procedures of livestock transport vehicles have been performed in four different abattoirs in Jeonbuk, Korea. The observation included length of car washing time, the number of washing bay, type of washperson, type of disinfectant application, length of disinfection time, and compliance of driver’s hygienic procedure. Every vehicle in all abattoirs conducted washing and disinfection procedure. However, there were procedural differences for each abattoirs and defects in the washing and disinfection procedures. In addition to that, the compliance of driver’s hygienic procedure was not sufficient. Hence, detailed manuals on washing and disinfection procedures for involved people are required and it is necessary to establish an inspection and evaluation system.