http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
정구익,남기웅,이상준 한국IT정책경영학회 2020 한국IT정책경영학회 논문지 Vol.12 No.1
As 3D Printing and Virtual Reality Business taking point in IT industry, at the same time, 3D modeling technology value is on the rise and various software is provided for different purpose. Existing modeling software have inconvenient in usage because user must have knowledge on software tool. This thesis suggest automation of 3D modeling web application program that extract standardized data from figure and text by computer vision library. Through automation of 3D modeling, we offer simple usage for beginner. Futhermore, we expect convenient use in architectural modeling industry.
Anomaly Detection of Facilities and Non-disruptive Operation of Smart Factory Using Kubernetes
정구익,하현수,이상준 한국정보처리학회 2021 Journal of information processing systems Vol.17 No.6
Since the smart factory has been recently recognized as an industrial core requirement, various mechanisms to ensure efficient and stable operation have attracted much attention. This attention is based on the fact that in a smart factory environment where operating processes, such as facility control, data collection, and decision making are automated, the disruption of processes due to problems such as facility anomalies causes considerable losses. Although many studies have considered methods to prevent such losses, few have investigated how to effectively apply the solutions. This study proposes a Kubernetes based system applied in a smart factoryproviding effective operation and facility management. To develop the system, we employed a useful and popular open source project, and adopted deep learning based anomaly detection model for multi-sensor anomaly detection. This can be easily modified without interruption by changing the container image for inference. Through experiments, we have verified that the proposed method can provide system stability through nondisruptive maintenance, monitoring and non-disruptive updates for anomaly detection models.
WDM-PON Link에서 upstream, transmission 성능 향상에 대한 연구
권혁춘,정구익,하상진,한상국 연세대학교 전파통신연구소 2001 電波通信論文誌 Vol.5 No.1
본 논문에서는 파장 분할 WDM-PON 구조를 제안하였으며, CW source를 가지고 Fabry-Perot laser에 injection 시키는 방법을 사용하여 4 channel 155Mbps를 20km upstream 전송하여 분석해 보았다. 제안된 WDM-PON 시스템에서의 이 injection locking 방법은 약 -7dBm ∼ -4dBm 정도의 높은 출력 파워를 제공하였고, 155Mbps 전송시 BER=10-9에서 receiver sensitivity 는 -38dBm정도를 유지하였다. 또한 제안된 구조에서 CW source로 파장 분할된 LED와 FP laser를 사용하여 각각에 대한 시스템에서의 성능을 비교 분석해 보았다. In this paper, we propose a spectrally sliced WDM-PON architecture and analyze the upstream transmission of 4 channels 155Mbps signals by 25km using an injection locking method of Fabry-Perot laser as a CW source. For a proposed WDM-PON system, This injection locking method provides high output power of -7dBm ∼ -4dBm and satisfies receiver sensitivity -38dBm for 10-9 Bit Error Rate for 155Mbps transmission. Also, we compare performances using spectrum-sliced LED and FP laser respectively as CW source for a proposed WDM-FON system.