智能网络型船舶机舱监测报警系统设计

为解决传统单元组合式机舱监测报警系统中存在的运行稳定性低、时效性差等问题,结合PLC嵌入技术对船舶机舱监测报警系统进行了优化设计。利用PLC技术对智能网络船舶机舱监控数据进行有效的采集和压缩处理,对船舶机舱监测预警系统结构模块和功能进行规划,并建立了机舱监测报警数据传输控制单元,对优化后的预警系统结构运行流畅进行创新设计,保障智能网络型船舶机舱监测报警系统快速安全的运行。通过仿真对比检测证实,智能网络型船舶机舱监测报警系统可有效解决传统单元组合式船舶机舱监测预警系统中存在的行稳定性低、时效性差等问题,充分满足监测报警系统设计要求。     

基于Web的远程监控技术研究及应用

本文探讨了基于Web的远程监控技术及应用,以现场总线技术设计了船舶机舱智能化检测系统,使船舶机舱智能化检测与远程控制诊断于一体,实现了船舶监控指挥自动化、数字化和信息化。     

《智能船舶规范》下的机舱智能化探究

船舶智能化作为船舶设计领域技术变革的中坚力量,将使船舶设计从理念到方法发生质的改变。机舱堪称船舶的"心脏",船舶自动化的推进和发展在很大程度上体现在机舱的自动化程度上,各船级社规范中,也对机舱自动化有着详细的规定和要求。文章在介绍CCS《智能船舶规范》的基础上,对比智能船舶与无人机舱在自动化系统设计上存在的区别,并对机舱智能化的设计思路和智能机舱自动化系统的构建进行探究。     

CAN总线技术在船舶机舱自动化报警系统中的应用

机舱是船舶的操纵与控制中心,机舱内部含有柴油主机、汽轮机、船舵、操控台等设施。为了提高船舶机舱的安全性和自动化水平,研发机舱自动化报警系统成为船舶工业的研究热点。近年来,通信技术发展迅速,CAN总线通信技术在工业领域的应用越来越广泛。本文对CAN总线通信技术做了详细介绍,在传统的船舶机舱报警系统的基础上,设计了一种基于CAN总线的机舱自动化报警系统,并设计了该系统的硬件结构和软件程序。     

一种新型的船舶机舱自动化系统

本文分析了船舶机舱自动化技术发展趋势，针对目前船舶机舱自动化系统存在的２，结合现场总线在船舶机舱经中的应用，提出了一种新型的船舶机舱自动化系统，即现场总线式机舱监控系统。     

高度智能化的舰船机舱系统设计

当前国际形势下舰船的自动化水平以及稳定性决定了舰船性能的高低。舰船机舱是舰船自动化系统的重要组成部分,设计舰船智能化机舱系统对于提高舰船运行的稳定性以及提高作战能力具有非常重要的意义。本文在分析当前舰船机舱系统存在问题的基础上,提出一种基于CAN总线技术和以太网的智能机舱系统,对系统进行整体设计,详细说明智能机舱系统工作的过程,对智能检测节点进行硬件和软件设计,本文设计的智能化舰船机舱系统使用模块化技术,提高了舰船机舱系统的可维护性。     

舰船机舱的全自动化系统设计

舰船机舱自动化系统是保障舰船稳定可靠工作的关键,同时实现机舱全自动化可有效减轻舰船工作人员的工作强度,提高舰船运行稳定性。CAN总线技术是一种非常成熟的现场总线技术,已经广泛应用于船舶工业。本文提出使用CAN总线技术来构建舰船机舱的全自动化系统,包括船舶电站自动化系统、主机监控系统等,通过CAN总线和现场设备以及监控电路进行连接,因而具备很好的实时性及可靠性。     

现场总线技术在船舶主机遥控系统的应用研究

当船舶操作人员离开机舱时,为了实现对船舶主机的远程控制,必须建立一个高效、稳定的船舶主机遥控系统。远程主机遥控系统不仅能够提高船舶的操作性能,改善工作人员的工作环境,还能提高船舶的可靠性,促进船舶机舱的自动化水平。本文以现场总线为遥控系统的通信网络基础,对船舶主机遥控系统的网络节点设计、总线分布、硬件电路设计和软件程序设计等模块进行系统研究。基于现场总线技术的船舶主机遥控系统在信号采集、传输和处理等方面,相对于传统的逻辑电路主机遥控系统具有速度快、精度高、不易失真等优点,具有重要的应用前景。     

机舱监测系统的新发展

船舶机监测系统的可靠性直接影响到船舶的安全，及船舶营运的经济效益，它的自动化程度即反映了船舶自动化的程度。本文简要回顾了机舱检测系统几十年来的发展历程，据ＭＥＭＡＣ机舱监控系统实例，介绍，分析了最新机舱监测系统的发展情况。     

现场总线技术与机舱自动化的研究

在研究当今流行的几种现场总线标准的基础上，分析了现场总线系统的结构特点和技术特点。根据船舶自动化的发展趋势和船舶机舱监控系统的特点，提出了以现场总线为基础的船舶机舱自动化系统的结构，并论述了在船舶机舱中采用现场总线系统的优点。     

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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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.     

某海港码头的撞损修复

依据码头撞击受损区域调查检测结果,对受损构件提出合理的修复方案,为码头的安全运行提供保障。