水运交通电视监控图像传输技术研究

介绍水运交通电视监控图象通过电话线路的传输技术，相应的硬件装置、软件框图以及软件特点，特别是针对水运交通电视监控图象，对ＪＰＥＧ编码标准作了修改，以进一步提高压缩比，以及自编调制解调器程序以充分发挥调制解调器的传输速率，最后介绍达到预期效果的系统性能测试及现场试验结果。     

水运交通电视监控图像目标识别技术研究

针对水运交通的特点,提出一种水运交通电视监控图像目标识别技术,使用条件细缝检测窗,对窗内的图像数据进行似然比法求差图像,序列图像相关去时域噪声及进行闭运算以弥合孔洞和裂缝,之后进行目标检测和跟踪（匹配）, 最后计算各种交通参考。     

风行水上三十年

7月27日，“改革开放30年中国水路交通发展”新闻发布会在2008北京国际新闻中心召开。交通运输部水运司司长宋德星在会上介绍了改革开放30年中国水路交通发展成就，他指出，改革开放30年以来，我国水运业深化改革，扩大开放，制定实施水路交通长远发展规划，颁布出台了一系列鼓励和支持水运发展的法规、政策，取得了举世瞩目的成就，主要表现在统一开放、竞争有序的水运市场体系基本建立、水运基础设施建设成效显著、水路运输生产增长迅猛和水运服务能力明显增强等方面。     

近现代武汉对外交通时代变迁

根据近现代各时期武汉对外交通的构成以及各构成因子之间的关联程度以及特征，将武汉自汉口开埠（水运占绝对统治地位）至今（多种交通方式竞相发展时代）的对外交通历史划分为三个时代，即近代水运时代、水陆联运时代、快速立体综合交通时代。     

水运交通信息网发展概述

论述国内外信息化概况以及水运交通信息网的现状和发展，重点介绍交通部ＣＴＩｎｅｔ的物理构成和信息资源网的重点开发内容及服务功能。     

山东沿海移动电视监控系统规划研究

随着海事执法模式的改革以及视频监控技术的发展,在海巡船舶和执法车辆上配备移动电视监控设备,建设全省沿海重点监控区域的移动电视监控系统,是加强海上交通监控、提高海上应急反应能力的必然选择,将有力地保证山东沿海水域的船舶交通安全,为山东省海洋经济的可持续发展做出坚实的保障。     

海运发展若干意见出台在即航运龙头获重大利好

交通运输部水运局局长宋德星近日在《中国交通报》上撰文指出，2014年水运行业将坚持稳中求进的工作总基调，以促进水运持续健康发展为目标，以推进重点领域改革为动力，以强化管理服务为抓手，加快推进“四个交通”发展。在促进水运持续健康发展方面将采取以下措施。     

自主产权的航道设计BIM软件的研发与工程应用

针对水运工程航道设计BIM软件“卡脖子”问题,进行了航道设计软件关键性能需求分析和软件研发。结合国内某30万吨级航道改扩建工程,介绍了自研软件在航道工程设计中三维地质模型、航道参数化设计、自动剖图、工程量计算以及与其他BIM软件交互等应用。结果表明,自研的航道设计BIM软件符合国内航道工程设计习惯,满足当前国内水运工程航道的BIM设计要求,可为类似航道项目设计软件的自主可控提供借鉴和参考。     

理事单位风采——中交紫光

北京中交紫光科技有限公司（以下简称”中交紫光”）是由中国交通集团直属企业中交水运规划设计院有限公司和清华紫光股份有限公司的直属企业北京紫光捷通科技有限公司共同出资而成立,旨在港口水运行业智能化、信息化、自动化的技术研究、产品开发和系统集成。公司凭借中交水运规划设计院以及中国交通信息中心多年来在港口水运行业积累的丰富设计经验与行业资源．依托紫光捷通在智能交通领域的技术、资金、和人才优势,     

两会热点看水运

"民之所期、政之所向",2020年的全国两会,牵动着世界的目光,也承载着更多更高的期盼。来自交通水运行业的代表委员们,肩负时代使命、承载人民重托,紧紧围绕交通水运行业改革发展大势,深入调研,了解民意,认真建言,直面热点难点问题,提交了诸多以交通水运为关键词的议案和提案。     

一种内河船舶信息自动报告系统的设计与实现

针对目前内河航运中普遍使用VHF语音通信进行船舶信息交流的缺点,设计了一种基于自组织无线数据通信、GPS定位、嵌入式软硬件设计和电子江图等关键技术实现的内河船舶信息自动报告系统,研制的实验室样机实现了自动感知临近船舶并对距离过近的危险船舶报警、船舶向岸基设备自动发送相关航运信息等功能。该系统具有运营低成本、自动准确报告船舶信息的特点,能够提高内河航运安全技术水平。     

Spatial and Temporal Variability in Shipping Traffic Off San Francisco,California

Shipping traffic poses a worldwide threat to many large whale species. Spatially explicit risk assessments are increasingly being used as a tool to minimize ship-strike risk. These assessments often use static representations of shipping patterns. We used Automatic Identification System data to quantify variability in cargo shipping traffic entering and exiting San Francisco Bay, which contains some of the busiest ports in the United States, at three temporal resolutions: (1) before and after implementation of the California Air Resources Board's Ocean-Going Vessels Fuel Rule, (2) among seasons, and (3) day versus night. We used the nonparametric Mood's Median test to compare median daily distance traveled because the data were not normally distributed and the variance was not homogeneous. Our analyses show that shipping traffic off San Francisco is dynamic at both interannual and daily temporal resolutions, but that traffic was fairly consistent among the seasons considered. Our analyses emphasize the importance of economic and regulatory drivers on interannual shipping traffic patterns. Shipping traffic is expected to continue to change off the U.S. West Coast and to increase globally. These changes in shipping traffic could have implications for the risk of ships striking whales and should be included in risk assessments.     

长江口深水航道整治效益分析 ——以船舶通航变化为例

根据VTS和AIS船舶数据记录,利用AIS船舶航行轨迹线分析及流量统计软件,对长江口深水航道建设不同时期 的船舶流量、船舶货运量及船舶的实际吃水情况进行统计分析,从而为深水航道建设带来的航运经济利益推算提供基础数据。     

单片机系统利用电话进行远程数据通信的研究

介绍了遥测、遥控系统中远程数据通信的基本模式和一般的系统组成结构;论述了有线电话MODEM的基本工作原理和常用工作方式;给出了遥测终端机中的单片机与MODEM的接口方法和AT指令集的用法及通信程序设计。     

一种简单易行的摄像机标定方法

提出一种适用于电视测量系统中的方便的投影参数求取方法，主要着眼于方法的易用性，并在此基础上设计出了一套用于自动测量船模运动参数的电视测量系统。它首先利用测试卡上的方格线求出摄像机镜头的变形修正系数，然后利用已知的5个地面坐标与图像中的对应点的关系求出摄像机的标定参数。根据上述两步得出的参数，可以通过图像上的任何一个像素点计算出其在地面上的对应坐标值。实验证明，本文提出的方法是有效的，且能够比较方便地解决视觉监控中摄像机标定的问题。     

Development of ship sinking frequency model over Subsea Pipeline for Madura Strait using AIS data

It is important to study the risk posed by heavy shipping traffic to a subsea pipeline located near an industrial port area. In this context, it is essential to estimate the accident frequency in an attempt to eliminate subjectivity in the analysis process. This study proposes a model for estimating the ship sinking frequency over the subsea pipeline in the Madura Strait area. The Madura Strait is one of the busiest shipping lanes in Indonesia. Many ships pass through the fairway in the strait, and many industrial ports have been built in this area. The proposed model is developed based on Fujii’s Model, and it uses Automatic Identification System (AIS) data as a ship traffic survey. Ship sinking accidents are considered based on ship–ship collisions over the critical subsea pipeline area. The ship–ship collision locations around the subsea pipeline and the ship traffic distribution models are estimated using AIS data. The causation probability Pc is determined based on a synthetics approach using a Bayesian network modified from Det Norske Veritas’ and Hänninen’s models. The causation probability is estimated by considering factors such as human performance, weather, technical problems, and support. The proposed model is validated by comparing its result with actual accident records for the Madura Strait area. The ratio value of 0.33 is considered to be reasonably agreement (ratio value ≥0.2).     

The perception and image of shipping

The image of the shipping industry plays a vital role in developing maritime transport as a major future, sustainable transport alternative. In particular, it is crucial to understand the image the shipping industry has among young people and the anatomy of the concept in order to be able to effectively promote careers in shipping, to cultivate shipping as an attractive labour market and to develop attractive educational programmes. The focus of this paper is the image of the shipping industry. This study reports on the findings of a large-scale survey of the image of shipping- and image-related concepts among upper secondary school pupils in Sweden, Norway and Greece. We define and analyse empirically by means of multivariate statistical analysis the anatomy of the image concept. We identify various image dimensions, estimate how young people rate the shipping industry along these dimensions and estimate their relative importance to young people who are planning their future careers. The results from this study can be used as a base for describing and explaining the images that young people have of the shipping industry. Such knowledge is fundamental for deriving and developing constructive strategies to promote careers in shipping, to adapt shipping to the expectations of young people and to develop creative and relevant educational programmes. Finally, understanding the image of shipping among young people is important not only for the shipping industry, but for other stakeholders as well, such as ship-owners associations, trade associations, labour unions, transport authorities and administrations and policy makers at the national and supra-national level.     

“远望3”号航天测量船时音记录仪接口电路的设计

详细介绍我国第三艘远洋航天测量船“远望３”号上时音记录仪接口电路的原理、组成及语音延时芯片ＤＮ８８８的工作原理，同时对时间码变换电路及ＭＯＤＥＭ电路进行了分析介绍。     

浅析内河中小型船舶的安全监督管理

做好内河中小型船舶的安全监督管理,维护公平竞争的航运市场秩序,为经济发展提供可靠的航运安全保障,就必须立足现状,找出存在的问题并形成行之有效的管理对策。