How Warner Land Surveys uses the Leica Nova TS60
案例分析
Author: Andrew Griffin
华纳土地调查有限公司（华纳调查），建立1979年，是英国领先的土地和工程测量顾问之一。在40年历史上交付了超过11,000个单独的项目，Warner调查的重点一直是客户服务以及优质数据收集和交付。该公司努力成为“首选”提供商qualitysurveys. As the company evolved, it quickly developed both construction and industrial departments to support an evolving client base.
“From our roots as a small land survey company to where we are now, we continue to provide a consistent, cost-effective service to support our clients with comprehensive ‘end-to-end’ solutions for all their survey requirements, from project concept to completion,”Warner Surveys董事总经理David Hutson说。
三个应用程序，一个总站
土地和工程测量公司使用一系列技术和最先进的测量和定位技术来确保以精确，准确性和最具成本效益和最安全的调查解决方案进行每个项目。华纳调查的项目控制网络调查，经过验证的“查看调查”和3D运动监控的工具是Leica Nova TS60 – World’s most accurate total station。
“The Leica TS60 is the instrument Warner Surveys turn to for projects requiring an additional level of accuracy assurance. Being a 0.5-second instrument makes it ideal for manual monitoring schemes, and the surveying of large survey control point networks, particularly in the rail environment. We have also found an additional use for the TS60’s telescopic imaging capabilities in verified view surveys,”赫特森解释。
The examples below explain how using the TS60 Warner Surveys:
进行了最高精度的控制调查，以验证控制点网络指导伦敦国王十字架的重新设计；
Helps its clients visualise precisely how its new project or development will look like by providing surveys to produce ‘verified views’;
Movement monitoring schemes for the 3D monitoring of façades or old buildings.
Control network survey for Kings Cross Station remodelling project
各国正在适应和扩展其铁路系统，以动员不断增长的城市增长，并使经济继续前进 - 伦敦也不例外。
作为升级英国东海岸主线的Network Rail的一部分，将更换并重新设计了伦敦的国王越野基础设施。审查该电台的计划包括在新布局中重新布置轨道，并重新打开了一条废弃的隧道，允许进入车站的六个轨道而不是当前四个轨道。
华纳的调查于2019年初进行了调查，以恢复和重新调查Kings Cross Repodeling项目现有的调查控制点网络。调查这条铁路线需要在最短的时间内以最高的精度和标准捕获数据。
“由于这是一项铁路环境控制调查，需要非常高的准确性，因此我们立即选择了TS60进行所有遍历和控制点观测”，华纳（Warner）对国王交叉改造项目的首席测量师克里斯·吉尔克斯（Chris Gilks）说。“It is the ideal choice for a large-scale control survey as it utilises the instrument’s strengths. The TS60 allows us to observe and record ‘rounds’ or ‘sets of angles’ to a 0.5 second horizontal and vertical accuracy, and as a result, provides quality data sets, which ensure we achieve the required accuracies necessary to meet demanding Network Rail standards.”
准确性是一个重要的好处，但这并不是使用TS60进行控制网络调查的唯一优点。在国王交叉重塑项目中，除了地面控制观测外，还需要验证和协调几个壁挂式棱镜。
“With projects such as this, with high numbers of targets, when utilising the Leica Captivate ‘Sets of Angles’ app, it was often necessary to observe 12 or more different ground and wall targets in face left and right for seven complete rounds. For example; for 12 targets this would equate to 168 control observations for a single set up，”吉尔克斯解释说。
This process can be very demanding on time, especially in the rail environment where access and time on site are at a premium.
“ TS60非常适合这项任务，因为其压电技术无尽的驱动器与标准电动驱动器相反。TS60的旋转速度的提高大大减少了观察到如此庞大的角度的时间，因此，进而提高了我们每小时的生产率，并最终降低了Warner Surveys和我们的客户的成本，”添加吉尔克斯。
验证的视图调查
华纳调查一直是“经过验证”调查的长期提供商，以进行准确的视觉表示（AVR）。AVR，摄影图像准确地放置在新的开发项目中，建筑师和开发人员通常用于计划目的，以显示未来计划的外观。可以将照片准确地放置并渲染到3D模型中，以可视化潜在的站点，收集GPS和总站测量。
Warner Surveys provide its clients, or the company producing the AVRs, the survey data to facilitate 3D digital modelling. Experts survey and record a large range of photograph reference points and the camera locations to ensure a high level of accuracy. The surveyed data collected by the team is then imported into the client’s 3D digital model from which render images of a proposed scheme can be rendered.
“TS60图像捕获能力,紧密相联的ws us to provide our clients with images of the recorded or surveyed reference points. It adds a telescopic image record of the point surveyed which facilitates post-processing and can be supplied to the client in order to confirm or prove the point surveyed,”华纳调查的高级测量师詹姆斯·华莱士（James Wallace）备注。
3D movement monitoring
Accurate and reliable positioning on the status of structures is crucial to make fast and informed decisions and react to potential problems.
It is a commonplace now for refurbishment works to require that the existing façade is maintained, whilst the internal structure is demolished and rebuilt to suit a more modern design. In these instances, the appointed design/structural engineers may request the installation of a monitoring scheme to monitor a façade or structure with millimetre accuracy.
华纳的调查已使用TS60监视旧建筑物和立面，因为机器人总站可以确定其自己的位置和定向，并观察团队设定的控制点。
“当华纳调查开始建立这些监视方案之一的过程时，我们对参考控制和监视目标进行了三组角度观察，并在三个设置的基础读数位置上进行了监视目标。TS60在此基础读数中确实进入了其元素，这是由于其速度在左侧和右面之间的速度以及转动观察众多监视点时的速度。压电技术直接驱动器将TS60大大提高了AT的速度，可以采用监视方案，从而使我们能够更快地处理和将结果交付给客户的结果，”总结说Warner Surveys监测经理Peter Pearson。
