Abstract
Alarms affect operations in most part of the ship. Their impact on modern Engine Control Room operations is no less significant. The state of an alarm system serves as an indication of the extent to which the ship’s operations are under management control. Thus, the design of efficient and reliable alarm monitoring system is vital for safe and sound operations. Although several design techniques have been proposed, all the proposed design methods employ sophisticated and expensive approaches in resolving alarm issues. In this paper, a cheap, yet reliable and efficient alarm design method for engine room device monitoring is presented. The design method employs PLCs and SCADA-based system and adopts certain basic design requirements of alarm monitoring system presented in literary works. Reasons for such a design method are highlighted, and the programming platforms for the design are given. The strengths and weaknesses of some design methods presented in some published works are reported and solutions to such problems are proposed. The proposed design technique, including fault diagnostic algorithm, have been subjected to real-time online testing at the shipyard, specifically ChangjiangWaterway Bureau, China (ship name–Ning Dao 501). The testing results proved that this design technique is reliable, efficient and effective for online engine control room device monitoring.
Highlights
Reports indicate that alarm monitoring issues are the biggest single issue affecting safety in modern engine control rooms [1], [2], [3], [4]
This paper presents a design method for real-time monitoring of engine room alarm systems, using PLCs and SCADAbase system
The proposed www.ijacsa.thesai.org design proceeded through PLCs and SCADA-based systems
Summary
Reports indicate that alarm monitoring issues are the biggest single issue affecting safety in modern engine control rooms [1], [2], [3], [4]. In Zaghloul’s proposal, a collection of standard software (Human Machine Interface) is used to provide a SCADA central host of all the statuses of the field machinery The shortfall of this design method is that, it only performs monitoring purposes, and ignores basic error detection algorithms. A SCADA based system for monitoring a central heating and power plant using Siemens equipment and software “Process Control System 7“ (PCS7) was proposed in [9] This design technique employs redundant servers and web-based applications via OPC and web servers to provide remote actions and uninterrupted monitoring. The basic design requirements of alarm monitoring system presented in [6] are adopted, and the communication methods of [13] are used to resolve these issues. The technique where each I/O point is fused is used to guarantee that one fault only disrupts the affected point [18]
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