英语翻译Machine-control applications such as a gantry crane auto

英语翻译
Machine-control applications such as a gantry crane auto-steering system require
positioning accuracies better than a few centimetres with extremely high reliability in a
real-time kinematic mode and at a high update rate of positioning solutions.The
University of New Brunswick (UNB) has developed ultrahigh-precision GPS real-time
kinematic (RTK) software which provides such a capability and is being used to control
cranes at a large container port.The software works in conjunction with a dualfrequency
GPS receiver and an IEEE 108.11b compatible 2.4 GHz wireless LAN
(WLAN) base unit (Ethernet hub and access point) at a base station and two dualfrequency
GPS receivers and a WLAN adapter mounted on the cranes.The software
monitors a crane’s deviations from its intended tracks and feeds the data to the crane’s
auto-steering system.This software is able to provide navigation solutions in real time at
a 10 Hz update rate commensurate with the dual-frequency data rate.The horizontal
and vertical positioning accuracy guaranteed at essentially a 100 percent confidence
level is better than 2 and 3 centimetres,respectively.The RTK solutions are available
more than 99.9% of the time over the whole day.
We demonstrated the performance of the gantry crane auto-steering system at Korea
International Terminals’ Kwangyang Port in South Korea in May 2002,achieving
excellent results.Since then,we have carried out alpha and beta testing in different
environments,including Kwangyang Port,jointly with the manufacturer of the crane
control system.Following a period of test operation,the new system is now in
commercial operation at the port.Recently,we have carried out further tests of this
software at UNB using a 25 Hz update rate and obtained successful results.Technical
aspects of the gantry crane auto-steering system are discussed in this contribution.
Some of tests results carried out in a variety of situations at Kwangyang Port and UNB
are presented.
语句尽量通顺一些

关于机械控制应用例如龙门起重机自动转向系统要求定位精度优于几厘米具有极高的可靠性 .
实时运动模式和高更新率的定位解决方案.新不伦瑞克大学（ UNB ）制定了超高精度的GPS实时运动学（ RTK技术）软件,该软件提供了这样一种能力,是被用来控制起重机在大型集装箱港口.该软件协同工作,以全球定位系统接收器和一个IEEE 108.11b兼容的2.4 GHz无线局域网
（WLAN）的基本单元（以太网集线器和接入点）在一个基站和两个全球定位系统接收器和一个无线局域网适配器安装在起重机.该软件监控起重机偏离预定轨道的数据和饲料的起重机汽车转向系统.这个软件能提供导航解决方案在实时
10赫兹更新率相称双频数据传输速率.横向和垂直定位精度保证在本质上是一个百分之百的信心
水平比2和3厘米,分别为.RTK技术解决方案的提供99.9 ％以上的时间超过了整整一天.
我们表现出的性能,门式起重机自动转向系统在韩国
国际货柜码头'光阳港在韩国于2002年5月,实现良好的效果.自那时以来,我们进行了α和β在不同的测试环境,包括光阳港,与制造商共同的起重机控制系统.经过一段时间的试运行,新系统目前正在商业运作在港口.最近,我们又进行了进一步的试验本软件UNB使用25赫兹更新率,并取得成功的结果.技术方面的门式起重机自动转向系统中讨论这方面的贡献.一些试验结果进行了在各种情况下的光阳港和UNB介绍.