• 대한전자공학회논문지SD
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• 제46권10호
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• pp.9-15
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• 2009

본 논문에서는 고속 ATC(Automatic Threshold Control) 회로 구조를 고안하고 이를 이용하여 고속 ATC 기능을 갖는 버스트 모드 제한증폭기를 설계하였고, $0.8{\mu}m$ SiGe BiCMOS 상용 파운드리 기술을 이용하여 제작하였다. 제작된 버스트 모드 제한증폭기는 $PRBS=2^7-1$에서 무에러(error free)의 아이를 보였고, 160ps이내의 지터 특성과 95ps이내의 상승/하강시간을 보였다. ATC특성 측정결과 버스트 데이터의 신호의 초기부터 안정되게 파형을 잘 잡아낼 정도로 빠른 ATC동작이 이루어지고 있어 고안한 ATC회로의 고속특성을 확인할 수 있었다. 그러나 버스트 초기에서 듀티사이클 왜곡이 발생했고, 입력 신호의 크기가 커짐에 따라 듀티사이클이 59%까지 증가하는 특성을 보였다. 그러나 10 사이클이 지난 후에는 모든 입력 신호의 크기에 대해 듀티사이클이 52% 이내로 안정화되고 있음을 확인하였다

• KIEE International Transactions on Power Engineering
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• 제4A권4호
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• pp.192-200
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• 2004

This paper evaluates FACTS control on the available transfer capability (ATC) enhancement. Technical merits of FACTS technology on boosting ATC are analyzed. More effective control means for line flow and bus voltage require the application of FACTS. In this paper, the power flow calculation method for the power systems with FACTS is based on the current injection model (CIM) and the Newton-Raphson method. An integrated scheme for ATC calculation, which considers the dynamic characteristic of the power system, is suggested. The study is applied to the IEEE 57-bus power system to demonstrate the effectiveness of FACTS control on ATC enhancement.

• 제어로봇시스템학회논문지
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• 제9권10호
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• pp.836-843
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• 2003

The automatic train control (ATC) system development project for the Automated Guideway Transit (AGT) system has high technical risk because the system is unmanned train control system using wireless technology which was unprecedented in train control industry of Korea. To overcome the technical risk during concept design phase of the ATC system development project, the integrated product team(IPT) carried out a reverse and reengineering process using a systems engineering design model. The generic systems engineering process is incorporated in the both reverse and reengineering process. As a result of the systems engineering effort, the IPT has built top layer systems engineering design model of the ATC subsystem. The purpose of this paper is to deliver the reverse and reengineering process which was used to develop the systems engineering design model of ATC system using a computer aided systems engineering tool. This study also shows that the model based reverse and reengineering process can reduce the technical risk by identifying the differences of requirement, functional and physical architecture between a reference system and a target system.

• 한국통신학회논문지
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• 제30권1C호
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• pp.107-115
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• 2005

본 논문에서는 네트워크의 생존성을 보장하고 신뢰성 높은 인터넷 서비스를 제공하기 위한 차세대 보안기술로서 인터넷의 액세스점에 위치하는 이상 트래픽 제어기(ATC, Abnormal Traffic Controller)를 제안한다. ATC의 주요 개념은 이상 트래픽 감지와 트래픽 제어기술에 있는데, 네트워크에서 에러의 요인이 계속 존재하거나 반복되는 경우 이상 트래픽 제어를 통해 서비스 완료성을 가능한 보장하는 것을 그 목적으로 한다. 분석결과, 이상 트래픽 중 유효 트래픽의 비율이 $30{\%}$를 초과하는 경우에는 이상 트래픽에 대한 제어정책을 사용하는 ATC는 기존의 네트워크 노드 뿐만 아니라 차단정책을 사용하는 ATC보다 우수한 성능을 나타내었다. 과다 트래픽의 알려지지 않은 공격이 발생하는 경우, 높은 오탐지율로 인해 기존의 네트워크 IDS로는 한계가 있는데, 이러한 환경에서 ATC는 네트워크 노드를 도와서 이상 트래픽을 제어하는데 주요한 역할을 수행하게 된다.

• 대한전기학회논문지:전력기술부문A
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• 제53권8호
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• pp.446-453
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• 2004

This paper focuses on the evaluation of FACTS control on available transfer capability(ATC) enhancement. Technical merit of FACTS technology on ATC boosting are analyzed. More effective control means for line flow and bus voltage are required for appling FACTS. In this paper, the power flow calculation method for deriving FACTS control parameters based on current injection model(CIM) and newton method. Integrated scheme for ATC calculation considering dynamic characteristic of power system is suggested. Study is based on the IEEE 57-bus system demonstrate the effectiveness of FACTS control on ATC enhancement.

• 한국전자통신학회논문지
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• 제10권8호
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• pp.875-882
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• 2015

최근 국내 도시철도 신설 및 개량사업에 무선통신기반 열차제어시스템 도입이 적극 검토되고 있다. 그러나 여러 가지 이유로 일부구간 또는 차량기지를 기존 궤도회로 기반으로 구축하는 경우가 있어 이종(CBTC, ATC) 열차제어시스템 간 상호운행이 필요하다. 따라서 본 논문에서는 신분당선 무선통신기반(CBTC) 차상신호장치를 탑제한 열차가 분당선 궤도회로(ATC)구간을 상호운행하기 위한 차상신호장치 설계와 두 노선을 탈선분기기 없이 안전하게 연결하는 방안을 제시한다.

• Journal of Animal Science and Technology
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• 제64권5호
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• pp.950-969
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• 2022

This study aimed to determine the effect of dietary supplementation with Acremonium terricola culture (ATC) on the quality, conventional characteristics, and flavor substances of Hortobágy goose meat. A total of 720 one-day-old goslings were divided into four dietary treatments, each consisting of six cages of 30 goslings. The dietary conditions consisted of the control group and three treatment groups supplemented with 3, 5, or 7 g/kg ATC. In male geese, supplementation with 3 g/kg ATC elevated the crude ash (CA) content of the thigh muscle compared to the control group, and the CA content of the pectoralis major was significantly elevated when geese were supplemented with 5 g/kg ATC (p < 0.05). In females, compared with the control group, supplementation with 7 g/kg ATC enhanced the crude protein (CP) content of the pectoralis major. Supplementation with 7 g/kg ATC also increased the crude fat (CF) content of the pectoralis major in females as well as in both sexes; moreover, this supplementation dose increased the inosinic acid content of the thigh muscle in males and in both sexes. In contrast, supplementation with 5 g/kg ATC decreased the pH of the thigh muscle at 12 h postmortem (p < 0.01). No significant changes in meat color, water loss rate, shear force, moisture content or amino acid (AA) levels were observed after ATC supplementation (p > 0.05). Levels of saturated fatty acids (SFAs) and polyunsaturated FAs (PUFAs) in the pectoralis major and levels of SFAs, monounsaturated FAs (MUFAs), and PUFAs in the thigh muscle were not affected by the supplementation. Overall, ATC supplementation had positive effects on the pH, and CA, CP, CF, inosinic acid contents as well as on the FA composition of gosling meat. The optimal level of ATC supplementation was 7 g/kg in goslings from 1 to 70 days of age.

• 전력전자학회:학술대회논문집
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• 전력전자학회 1996년도 창립기념 전력전자학술발표회 논문집
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• pp.43-46
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• 1996

The carborne Automatic Train Control(ATC) system keeps automatically optimum train speed code signals from wayside(track) circuit equipment. If there is no response for braking against the over speed detected, the driver will be noticed instantly by visual and audible warning signals. And then the ATC processes into braking mode for safe train operations to prevent any hazards by over speed limit. In this paper we are introduced the novel ATC system which has triple constructed structure made by 32 bit floating point DSP(ADSP21020-20) and process dealed with frequency domain and time domain for detecting signals. Owing to these reason it is no needed several band pass filters used in conventional ATC systems to detect the speed limit frequency. Also system's reliability and tolerance are incremented by adopt to 2 out of 3 logic to the outputs decision.

• 대한교통학회:학술대회논문집
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• 대한교통학회 1998년도 Proceedings The 4th International Transport Symposium
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• pp.100-107
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• 1998

With the rapid development of Urban Mass Transit in China, the Intelligent Transport System becomes inevitable. Based on the brief introduction of the blueprint of Urban Mass Transit in Shanghai, this paper analyses in detail the components and functions of Automatic Train Control (ATC) system applied in Shanghai Metro, presents the key technology of the main three subsystems of the ATC system : Automatic Train Supervision (ATS) subsystem, Automatic Train Protection (ATP) subsystem, Automatic Train Operation (ATO) subsystem. After reading this paper, you will have an general grasp of ATC system. At the end of the paper, it suggests a good resolution about the ATC system equipment to be made in China. If you are interested in the resolution, we'd like to exchange our thought.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2004년도 하계학술대회 논문집 B
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• pp.1300-1303
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• 2004

Using AF(Audio Frequency) track circuits to control block signal automatically. ATC(Automatic Train Control) system employed in urban transit 3/4 line, Gwacheon-line, Bundang-line and Ilsan-line pursues the safety of train operation. ATC is employed as important means for the safety. in which the distance between trains is controlled to satisfy the safety requirement. In this paper, we analyze the control algorithm of ATC and investigate the improvement plan of urban transit driving control mode to guarantee the automatic driving function.