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基于CAN总线的船舶自动化系统研究与设计 总被引:2,自引:0,他引:2
阐述船舶自动化系统CAN总线的应用,分析船舶自动化CAN总线并与其它通信方案比较。总结CAN总线的优点和船舶自动化系统采用CAN总线的特点,并分析船舶自动化系统的组成和CAN总线的总体设计方案。详细介绍了船舶自动化CAN控制系统网络总体结构、硬件组成、电路设计和软件设计,大大地提高了船舶自动化控制系统运行的可靠、安全、稳定性,从而解决船舶自动化系统的模块可维护性和故障可诊断性等实际问题。 相似文献
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水面无人船的发展与使命(英文) 总被引:5,自引:0,他引:5
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In the present economic climate, it is often the case that profits can only be improved, or for that matter maintained, by improving efficiency and cutting costs. This is particularly notorious in the shipping business, where it has been seen that the competition is getting tougher among carriers, thus alliances and partnerships are resulting for cost effective services in recent years. In this scenario, effective planning methods are important not only for strategic but also operating tasks, covering their entire transportation systems. Container fleet size planning is an important part of the strategy of any shipping line. This paper addresses the problem of fleet size planning for refrigerated containers, to achieve cost-effective services in a competitive maritime shipping market. An analytical model is first discussed to determine the optimal size of an own dry container fleet. Then, this is extended for an own refrigerated container fleet, which is the case when an extremely unbalanced trade represents one of the major investment decisions to be taken by liner operators. Next, a simulation model is developed for fleet sizing in a more practical situation and, by using this, various scenarios are analysed to determine the most convenient composition of refrigerated fleet between own and leased containers for the transpacific cargo trade. 相似文献
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Dimitrios V. Lyridis Nikolaos P. Ventikos Panayotis G. Zacharioudakis Konstantinos Dilzas Harilaos N. Psaraftis 《WMU Journal of Maritime Affairs》2005,4(1):33-55
This paper proposes a tool to estimate crew composition based on safety/operational and financial requirements. As there is
a tendency of ship owners to implement improved technologies on board their vessels, there is no systematic way to predict
their potential effect on crew size and composition (typically determined by flag state authorities on a case-to-case basis)
nor on the type and complexity of on board duties new technologies might dictate. The main aim of this paper is to develop
a tool to assist in determining crew composition, by taking into account both administration’s and the ship owner’s point
of view. Based on data collected from ship owners, a data mining technique is implemented in order to form a generalized framework
that estimates crew composition as a function of ship type, size, and degree of automation. The agreement of model predictions
with records from specific (vessel) cases is very good in terms of safety (for operations such as watchkeeping, mooring/unmooring,
loading/unloading). The specific intended use of this tool is to help a ship owner decide whether it is cost-beneficial to
retrofit a conventional vessel with advanced technologies that would potentially entail a reduced crew (probably dealing with
different and more complex on board duties). Its main benefits are that it can be used to estimate crew composition before
any vessel construction or upgrade has actually taken place and that it allows crew composition to be easily adapted to the
technological evolution of ship systems even at their current rapid pace. 相似文献
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邱中梁 《船舶与海洋工程学报》2008,7(4):255-260
Variable ballast systems are necessary for manned submersibles to adjust their buoyancy. In this paper, the design of a variable ballast system for a manned submersible is described. The variable ballast system uses a super high pressure hydraulic seawater system. A super high pressure seawater pump and a deep-sea brushless DC motor are used to pump seawater into or from the variable ballast tank, increasing or decreasing the weight of the manned submersible. A magnetostrictive linear displacement transducer can detect the seawater level in the variable ballast tank. Some seawater valves are used to control pumping direction and control on-off states. The design and testing procedure for the valves is described. Finally, the future development of variable ballast systems and seawater hydraulic systems is projected. 相似文献
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Location aware management and location based automation are fast upcoming technologies which are facilitated by availability of reliable, accurate, and cheap global positioning systems and location based services. This paper discusses the development of C++ classes, which may be used for development of software for location aware management and control, specifically in merchant shipping, so as to provide improved safety, increased automation, prevention of pollution and reducing the work burden of the crew. The GPS is used in conjunction with the regionally accessible nested global shorelines (RANGS) dataset for this purpose. The design of two main C++ classes named CShorelines and CGPSInput have been discussed. A control system mandatory on all oil-tankers above 150 GRT (and few other vessels) called ODMCS has been made location aware using the novel software developed and the results obtained have been critically examined and presented. 相似文献
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9000DWT化学品船的DNV一人桥楼设计 总被引:2,自引:0,他引:2
作为技术进步与自动化的成果,船舶一人桥楼日益受到船东和船级社重视。它既可以减少船员,提高工作效率,又能够改善船舶的安全性。结合9000DWT化学品船的一人桥楼设计,着重介绍了挪威船级社(DNV)NAUT-OC入级符号的设计要求.并从驾驶室的视野、工作环境以及规范强制要求的工作站等各个方面分析了一人桥楼的设计要点和注意事项。 相似文献
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数字化变电站自动化系统的应用探讨 总被引:1,自引:0,他引:1
论述了数字化变电站自动化系统的结构和特点,分析了目前变电站自动化系统的实际情况,对实现变电站全部数字化功能需解决的有关技术问题进行了探讨,并给出了实现方案。 相似文献
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发展海洋渔业可以缓解国家粮食安全压力,拓宽中国海洋渔业发展空间,维护国家海洋权益。专业化渔业物流船队是保障和支撑海洋渔业发展的重要组成部分,文章从不同的服务对象角度对渔业物流船队进行了划分,详细介绍了各类型渔业物流船队的发展历程、主要做法和取得的成效,指出了我国的渔业物流船船龄大,装备陈旧,自动化程度低和信息化水平弱等严重制约我国渔业物流船队发展的问题,提出了全面推进渔业物流船队的专业化建设、推动渔业物流船装备自动化革新、提升渔业物流船的信息化水平等实现渔业现代化的经验启示。 相似文献
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This paper presents the recent results from an ongoing analysis of the effects of high-speed naval operations on the performance, comfort, and safety of crew and passengers. A 127-m trimaran, the Benchijigua Express, which is similar in hull design to the General Dynamics Littoral Combat Ship (LCS) vessel, was investigated for motion-induced interruptions, motion sickness, and biodynamic feed-through to manual tasks. Data were obtained on two 2-hour transits per day for a total of 86 transits during February and March 2006. Survey questionnaires were obtained from nearly 2,000 passengers. The motion effects on manual dexterity were negligible, but motion sickness symptoms were reported by a majority of the passengers. The capability to manage the motion sickness issue for unadapted passengers may be important for the effective use of LCS to transport ground combatants and for Sea Basing concepts. 相似文献
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文中主要阐述船舶自动化机舱CAN总线控制系统,介绍了船舶自动化机舱CAN总线优点,分析了船舶自动化机舱系统核心功能和自动化机舱系统CAN总线的总体设计方案,指出CAN总线控制系统具有广阔的应用前景. 相似文献
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针对海军装备保障的特点,提出了一种基于地理信息系统(GIS)的海军装备保障指挥自动化系统设计方法,并在海军装备指挥自动化系统开发中得以应用。 相似文献