基于物联网的多船舶联合通信系统设计

传统船舶通信系统,存在通信接通效率、数据传输容错率低下等现象。为有效改善上述问题,设计基于物联网的多船舶联合通信系统。通过核心框架功能模块设计、SCA+USPR物联网通信系统平台设计,完成系统硬件设计。通过多船舶联合通信软件平台设计、通信设备服务组件设计、逻辑设备通信接口设计,完成系统软件设计。设计对比实验结果表明,新型系统与传统系统相比,通信接通效率、数据传输容错率等属性,得到明显提升。     

物联网环境下船舶无线实时通信系统设计

普通船舶无线实时通信系统,存在通信数据传输效率低下、系统稳定性不高等弊端。为有效解决此问题,设计物联网环境下新型船舶无线实时通信系统。通过系统框架设计、电路布线设计,完成新型无线实时通信系统硬件设计。通过软件框架结构设计、调制解调单元设计、基带处理和接口单元设计,完成新型无线实时通信系统软件设计。模拟系统运行环境设计对比实验结果表明,新型系统与普通系统相比,大幅提升通信数据传播效率,解决系统稳定性低下问题。     

舰船轮机实验室中的智能监控系统设计

监控覆盖率较低、处理监控数据等待时间较长,是现有舰船轮机实验室中监控系统存在的主要弊端。为有效解决此问题,在原有系统基础上进行改进,设计新型舰船轮机实验室中的智能监控系统。通过功能模块设计、通信接口设计,完成系统硬件设计。通过软件体系结构设计、智能监控中心结构设计、数据库设计,完成系统软件设计。通过设计对比实验的方式,证明新型系统与普通系统相比,提升监控覆盖面积,大幅缩短处理监控数据等待时间。     

基于PLC技术的船舶电力推进系统设计

传统的船舶电力推进系统存在着可靠度低的缺陷,为此提出基于PLC技术的船舶电力推进系统设计研究。电力推进系统主要由电力系统、调速系统、回转系统和推进器组成。系统硬件设计包括变频器、PLC硬件设备和变频器通信硬件设备设计,系统软件设计包括通讯环境设计、电力推进控制系统冗余程序设计和电机运行程序设计。通过系统硬件与软件设计实现了电力推进系统的运行。实验结果显示,设计的船舶电力推进系统的可靠度比传统系统高出25.2%,说明设计的船舶电力推进系统具备极高的有效性。     

舰船火灾报警网络监控的嵌入式系统设计

传统舰船火灾报警监控系统,存在报警及时性差、监控范围分布不均等弊端。为有效解决上述问题,设计舰船火灾报警网络监控的嵌入式系统。通过基于S3C44BOX嵌入式硬件平台设计、系统中断模块设计,完成嵌入式系统的硬件设计。通过舰船火灾报警网络软件任务划分模块设计、总线应用层协议设计、报警监控程序设计,完成嵌入式系统的软件设计。设计对比实验结果表明,新型系统与传统系统相比,明显提升舰船火灾报警及时性,缓解监控范围分布不均现象。     

基于物联网的新型船舶远程快速通信系统设计

普通船舶实时通信系统,在数据传输过程中,较易发生丢包现象,且系统整体响应时间较长。为解决上述问题,设计基于物联网环境的新型船舶无线实时通信系统。通过逻辑层框架设计、物理层框架设计,完成新型系统的硬件设计。通过整体框架设计、实时通讯模块设计、数据库设计,完成新型系统的软件设计。模拟系统应用环境,设计对比实验结果表明,新型系统与普通系统相比,传输数据丢包情况得到较好控制,系统整体响应时间也大幅降低。     

船舶动力装置运行故障诊断系统

传统船舶运行故障诊断系统,存在执行时间过长、诊断效率低下等弊端。为解决上述问题,设计新型船舶动力装置运行故障诊断系统。通过系统框架设计、故障诊断子系统设计2个步骤,完成新型船舶动力装置运行故障诊断系统的硬件设计。通过功能模块设计、程序函数设计、运行故障诊断子程序设计3个步骤,完成新型船舶动力装置运行故障诊断系统的软件设计。模拟系统运行环境,设计对比实验结果表明,新型系统与传统系统相比,有效缓解执行时间过长、诊断效率低下的问题。     

热泵技术在船舶领域的应用

介绍了船用水源热泵系统的设计思路、设计方法 ,以及具体的设计方案。评价了水源热泵系统优点。依托某两型客船的研究、设计与建造,从船型需求入手,通过了解这两型客船的营运区域、舒适度要求等,并从设计原理、控制逻辑、供热系统等几个方面展开了设计。同时对比同型船常规供热系统的设计方案,分析比较节能效果,确定了最合适的节能系统。     

FPSO的UPS系统及其蓄电池的设计

基于FPSO项目,讨论UPS系统及其蓄电池的设计应用。针对UPS电源系统的必要性、UPS系统的结构、UPS的设计与选择、蓄电池的设计与选择及其布置原则,通过对相应规范的剖析及实船数据的验证,总结出FPSO上UPS系统的一套设计选型方法。对新建和改装FPSO项目的UPS系统设计具有一定的指导作用。     

电力线载波技术下船舶突出障碍物视频监控系统设计

普通船舶视频监控系统,存在障碍物定位准确性较低、系统执行等待时间较长等弊端。为有效解决上述问题,设计基于电力载波技术的船舶突出障碍物视频监控系统。通过系统整体框架设计、船舶电力载波通信层设计,完成基于电力载波技术的船舶系统硬件设计。通过突出障碍物监控功能分析、详细功能设计、数据库设计,完成基于突出障碍物视频监控的船舶系统软件设计。模拟系统运行环境,设计对比实验结果表明,新型系统与传统系统相比,障碍物定位准确性较低、系统执行等待时间较长等情况,均具有明显改善。     

33rd International Conference on Ocean,Offshore and Arctic Engineering （OMAE2014）

正San Francisco,California,June 8-13,2014.OMAE 2014 is the ideal forum for researchers,engineers,managers,technicians and students from the scientific and industrial communities from around the world to:·meet and present advances in technology and its scientific support;·to exchange ideas and experiences whilst promoting technological progress and its application in industry·to promote international cooperation in ocean,offshore and arctic engineering.In line with the tradition of excellence of previous OMAE conferences,more than 900 technical papers are planned for presentation.Outreach for Engineers Specialty Forum This Specialty Forum is designed for students and professionals who may not be familiar with the Ocean and Offshore industry,as well as those who have just recently specialized in this field.     

Errata

正In the paper"Influence of Fouling Assemblage on the Corrosion Behaviour of Mild Steel in the Coastal Waters of The Gulf of Mannar,India"in Vol.12,No.4,Page:509,References were lost,and the two authors’biographies were identical.The correct text is shown below.We apologize to the authors and our readers for any inconvenience caused by the errors.     

Journal of Marine Science and Application 2014 Sum. Contents

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第34届海洋、离岸及极地工程国际会议(英文)

正St.John's,Newfoundland,Canada,May 31-June 5,2015 OMAE2015 is the ideal forum for researchers,engineers,managers,technicians and students from the scientific and industrial communities from around the world to: meet and present advances in technology and its scientific support;     

联合作战计划和执行系统

全球指挥控制系统(GCCS)实施当前美国海军网络中心战信息基础设施的联合计划网络。联合作战计划和执行系统(JOPES)支持GCCS实现联合计划。JOPES有两类计划：时间不限的精密预案计划生成作战计划、方案计划或职能计划；时间敏感的危机行动计划生成作战命令或战役方案。前者在和平时期创建的作战计划是后者的计划基础，加速应付危机的能力。     

Recent progress on wave induced loading measurements in warships

Recent measurements of wave induced hull strain and flexure in RN warships are presented together with the derivation of the current design criteria for extreme hull girder bending loads. The history of the development of the shipboard instrumentation used is given and recent developments to improve the quality and ease of analysis of the data are described. An unexpectedly high transverse asymmetry in the longitudinal strains measured in destroyers is shown to be the result of a combination of vertical and lateral bending in oblique seas. Finally recent theoretical comparisons between the loading of Deep-Vee hulls and conventional UK rounded bilge hulls are presented which demonstrate the higher loading experienced by this type of hull form.     

The 11th International Conference on Hydrodynamics (ICHD 2014)

正19–24 October 2014 SingaporeCONFERENCE THEMES The overall aim of the ICHD Conference is to provide a forum for participants from around the world to review,discuss and present the latest developments in the broad discipline of hydrodynamics and fluid mechanics.The first International Conference on Hydrodynamics(ICHD)was initiated in 1994 in Wuxi,China.Since then,9 more ICHD conferences were held subsequently in Hong Kong,Seoul,Yokohama,Tainan,Perth,Ischia,Nantes,Shanghai and St Petersburg.Evidently the ICHD conference has become an important event among academics,researchers,engineers and operators,working in the fields closely related to the science and technology of hydrodynamics.The 11th ICHD will be held in Singapore in 2014.     

第十二届深水操作会议和展览会(英文)

正November 4-6,2014Moody Gardens HotelConvention Center/Galveston,TX The Deepwater Operations Conference and Exhibition is celebrating its 12th anniversary this year.This growing event will continue the tradition of excellence in addressing operational challenges involved in developing deepwater resources.We will return to the Moody Gardens Hotel and Convention Center on November 5-7,2014 in Galveston,Texas.     

Eastbound or westbound ?

In terms of equal sailing distances, where is the inflexion when ships depart from ports in the Asian Continent to New York via Suez and/or Panama？
The answer is China South Port Group （Hong Kong, Shenzhen and Guangzhou）.     

Impact of regulation on the performances of long-distance transport services: A comparison of the different approaches in Sweden and Norway

Despite the many socio-economic similarities between Sweden and Norway, differences in jurisdiction, organisation, cooperation, and financing of long-distance passenger train and coach services have led to the development of four distinctively different ways of serving the markets. This paper describes how the train and coach markets have developed in the two countries, with emphasis on regulatory and industrial structure and a couple of performance variables.Looking at passenger rail, both countries separated infrastructure from operation over a decade ago. However, while Norwegian rail is characterised by an almost monopoly supplier, rail services in Sweden are partly decentralised to the responsibility of county authorities and are widely subjected to competitive tendering. The rest of the network is about to be opened up for on-the-track competition. Swedish Rail (SJ) has spent the last decades consolidating its core business (passenger rail) and sold out its other businesses. In contrast, the Norwegian state rail (NSB) has expanded its business to become a major bus operator and property owner, with extensions also into the Swedish market.The coach industry was more recently deregulated in both countries. The Swedish coach market is dominated by privately owned companies operating services to and from Stockholm. In Norway, state-owned NSB is a major coach operator on medium distance routes, and is also the largest partner of Nor-Way Bussekspress which totally dominates long-distance coach services. Further, the Norwegian coach market is characterised by cross-ownership and cooperation which has enabled an extensive route network which covers most of Norway.We find distinct differences in achievements in the two modes and in the two countries. Swedish rail services have succeeded in winning market shares and in renewing and developing both infrastructure and service levels to a greater extent than the Norwegian model. On the other hand, the Norwegian coach market seems to be more developed and efficient compared to its Swedish counterpart.The paper concludes with a discussion on the possible links between the different approaches and the performance observed, with the aim to stimulate further and more detailed research on some important issues.