• 정보과학회 컴퓨팅의 실제 논문지
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• 제21권4호
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• pp.290-298
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• 2015

본 논문은 CORBA, Ice 등의 다른 미들웨어들과 비교하여 성능, 품질, 사용자 편의성 등에서 높은 평가를 받고 있는 공개 메시지 지향 미들웨어인 ZeroMQ 기반의 다중 에이전트 메시지 전송 구조를 제안한다. 제안 구조는 FIPA 에이전트 표준 규격들로부터 MTS(Message Transfer System) 등의 개념들을 빌려와 사용하고 있으며, 다중 에이전트 플랫폼 SMAF(Smart Multi-Agent Framework)의 구조적 장점을 계승한다. 제안 구조는 ZeroMQ 커뮤니티에 알려져 있지 않은 새로운 방식의 피어 대 피어 구조를 사용한다. 제안 구조는 MTS 마다 단 하나의 라우터 소켓만을 사용하여 MTS들 간의 피어 대 피어 통신을 지원한다. 제안 구조는 ZeroMQ가 지원하는 다양한 장치들과 패턴들에 대한 호환성과 확장성을 가지며, 전통적인 분산 에이전트 응용 분야들 뿐 아니라 에이전트들 간의 밀접한 협력을 필요로 하는 지능형 로봇과 같은 분야도 지원할 수 있다.

• 전기학회논문지
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• 제64권8호
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• pp.1161-1167
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• 2015

Distribution Management System(DMS) ienhancing distribution automation system-based operation efficiency is an optimized system by various operational applications in a distribution network. DMS employs various applications like topology reconfiguration, volt/var control, and restoration at events such as overload, voltage violation, and a fault in a distribution system. An operation efficiency to employ multi-applications as restoration with short-term load forecasting is higher than a performance by a single application; and the applications are accomplished by an operator’s control. Applications’ combination is determined by various alarm information which means critical issues in order to operate a distribution system. Thus, this paper proposes an application management system which can configure application combination, control applications depending on alarm information and check their performance condition. The proposed application management system can be customized by operator easily and have high operation efficiency and reliability because it is worked by reviewed alarm information from operator.

• Nuclear Engineering and Technology
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• 제54권10호
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• pp.3587-3594
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• 2022

A distributed high-speed data acquisition and monitoring system for the RF negative ion source at Huazhong University of Science and Technology (HUST) is developed, which consists of data acquisition, data forwarding and data processing. Firstly, the data acquisition modules sample physical signals at high speed and upload the sampling data with corresponding absolute-time labels over UDP, which builds the time correlation among different signals. And a special data packet format is proposed for the data upload, which is convenient for packing or parsing a fixed-length packet, especially when the span of the time labels in a packet crosses an absolute second. The data forwarding modules then receive the UDP messages and distribute their data packets to the real-time display module and the data storage modules by PUB/SUB-pattern message queue of ZeroMQ. As for the data storage, a scheme combining the file server and MySQL database is adopted to increase the storage rate and facilitate the data query. The test results show that the loss rate of the data packets is within the range of 0-5% and the storage rate is higher than 20 Mbps, both acceptable for the HUST RF negative ion source.