• Title/Summary/Keyword: Engine Monitoring System (EMS)

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Development of Power Energy Management System for Ships including Energy Saving of Separated Load Systems (개별 부하 시스템의 에너지 절감을 포함한 선박 전력 에너지 관리 시스템 개발)

  • Kang, Young-Min;Oh, Jin-Seok
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.22 no.1
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    • pp.131-139
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    • 2018
  • Many ship researches have been carried out in connection with the fourth revolution, one of which focuses on EMS(energy management system). The EMS is referred to as systems for managing the energy of ships and include various systems. In this paper, we analyze the energy saving field in ship and propose a ship power energy management system including individual load control systems that can save energy in the engine room. EMS includes individual load control systems of PCS (Pump Control System), ERFCS (Engine Room Fan Control System), LCS (Load Control System), HVACS (Heating, Ventilation, Air conditioning Control System). Proposed EMS primarily conserves energy in the individual load systems of the engine room. Secondly, the integrated monitoring and control system is used to control the power generation system and the power load system to save energy.

Dynamic Bandwidth Allocation of CAN-based Network using increments of signal applied to Marine Engine Monitoring System (신호 증감 량을 이용한 CAN 기반 선박 엔진 모니터링 시스템의 동적인 대역폭 할당)

  • Lee, Hyun;Lee, Jun-Seok;Lim, Hyun-Seop;Lee, Jang-Myung
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.61 no.6
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    • pp.838-844
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    • 2012
  • This paper proposes the effective monitoring method for marine engine system, which is implemented based upon Controller Area Network (CAN). As the marine engine monitoring system requires various kind of information, a lot of sensor nodes are distributed to several places. The CAN supports huge numbers of message IDs for the sensor nodes and provides a stable communication channel in a wide area such as a 12,000 TEU container ship. Since the CAN is priority-based communication system, some of hard real-time messages like alarm messages which are time-critical to the operation of the vessel cannot be communicated within the dead-time. Therefore it is desirable to distinguish the bandwidth of the CAN for static state messages and transition-state messages not to be harmful to the engine operations. Using the features of message arbitration ability of the CAN, it is proposed in this paper that the bandwidth allocation is dynamically adjusted to cope with the increment of input signal to improve the performance of monitoring system. Effectiveness and validity of the proposed scheme have been demonstrated through real experiments.

Instantaneous Speed Variation of Crankshaft on a Low Speed Marine Diesel Engine (저속박용디젤기관의 순간회전속도 변동에 관한 연구)

  • Choi, Jae-Sung;Lee, Jin-Uk;Lee, Sang-Dug;Cho, Kwon-Hae
    • Journal of Advanced Marine Engineering and Technology
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    • v.31 no.2
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    • pp.138-144
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    • 2007
  • The variation of the crankshaft speed in a multi-cylinder engine is determined by the resultant gas pressure torque and the torsional deformation of the crankshaft. Under steady state operation, the crankshaft speed has a quasi-periodic variation. For the diagnosis the engine instantaneous speed versus crankshaft angle is utilized. This paper describes a simple measurement method of the engine instantaneous speed versus crankshaft angle using the teeth on the flywheel of the crankshaft. Two non-contacting magnetic pickup combinations detect the crank angle and TDC position for the data acquisition. The results from experiments on a 6 cylinder marine diesel engine demonstrate that the crankshaft speed variation are detected with good resolution. And the crankshaft speed variation is investigated according to the operation conditions. Also, it is confirmed that the engine output measured by EMS can be evaluated larger than the actual value due to TDC position error caused by instantaneous speed variation.

A Study for Space-based Energy Management System to Minimizing Power Consumption in the Big Data Environments (소비전력 최소화를 위한 빅데이터 환경에서의 공간기반 에너지 관리 시스템에 관한 연구)

  • Lee, Yong-Soo;Heo, Jun;Choi, Yong-Hoon
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.13 no.6
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    • pp.229-235
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    • 2013
  • This paper proposed the method to reduce and manage the amount of using power by using the Self-Learning of inference engine that evolves through learning increasingly smart ways for each spaces with in the Space-Based Energy Management System (SEMS, Space-based Energy Management System) that is defined as smallest unit space with constant size and similar characteristics by using the collectible Big Data from the various information networks and the informations of various sensors from the existing Energy Management System(EMS), mostly including such as the Energy Management Systems for the Factory (FEMS, Factory Energy Management System), the Energy Management Systems for Buildings (BEMS, Building Energy Management System), and Energy Management Systems for Residential (HEMS, Home Energy Management System), that is monitoring and controlling the power of systems through various sensors and administrators by measuring the temperature and illumination.

The Design and Implementation of an Elevator 3D Model Simulator Framework based on Unreal Engine (언리얼엔진 기반 승강기 3D모델 시뮬레이터 프레임워크 설계 및 구현)

  • Woon-Yong Kim
    • Convergence Security Journal
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    • v.23 no.2
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    • pp.67-74
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    • 2023
  • An elevator is a mechanical and electronic device composed of about 20,000 various parts, and is systematically operated with a close relationship with each other. By intuitively understanding this complex elevator structure and efficiently recognizing the operating model, it will be possible to increase the understanding of the elevator system and the efficiency of maintenance. The existing elevator management system is a process of collecting and understanding information based on data generated from elevators, and has a structure that lacks efficiency in expressing and managing real-world information during elevator maintenance. Therefore, this paper proposes a simulator framework that can operate efficiently based on the actual elevator model. By constructing the recognition of specific objects through a 3D-based service model and visualizing the operation process, it will be possible to enhance the understanding of the structure and operation required for elevator operation. To this end, the core components of the elevator system are identified, the relationship between them and the operating method are visualized, and a simulator is implemented. Based on this, it will be possible to provide a realistic information management and operating environment in virtual space and real platform.