II级*列出的历史建筑的完整激光扫描调查
Case study
作者：汤姆·惠特克罗夫特（Tom Wheatcroft Ba）（荣誉），建筑技术专家 /地理空间测量师
Ridge and Partners LLPis a multidiscipline Property and Construction Consultancy with over 650 employees working worldwide from 11 offices across the United Kingdom. In September 2019, their Geospatial team were commissioned by Oxford City Council to undertake a full laser scan survey and produce a Revit 3D Model of the Oxford Town Hall, a Grade II* listed building in the centre of Oxford. Completed in 1897, Oxford Town Hall is both the venue for public meetings, entertainment, events and the seat of Oxford City Council.
使用Autodesk Revit，即生产高质量3D建筑设计和文档的BIM（建筑信息建模）软件，专业Ridge团队创建了3D模型，以整合30年计划的维护报告和状况调查中的信息。该项目期间面临一些关键的挑战，主要围绕正在处理的数据量进行旋转。由于市政厅是一栋大型的历史建筑（7层，约18,000平方米），因此需要大量细节，因此需要从各种扫描仪进行1800多个颜色扫描以注册成完整的点云。
市议会需要一份准确的报告和有关建筑物当前布局的数据，因为它们的大量信息已过时或不准确。包括设施团队在内的每个人，以及现有的3D BIM就绪模型，应将条件和维护信息集成并易于访问，以进行资产维护，设计团队可以将其用于任何未来计划的工作。
SCCS提供的使用Leica Scanstation P40和RTC360激光扫描仪创建的牛津市政厅的全彩外和内点云。
结果是准确颜色poi注册nt cloud of the Oxford Town Hall which could be published in an Autodesk Recap format along with viewing capabilities for the client, usingLeica Jetstream。然后将使用点云来生成建筑物的准确且高度详细的3D修订BIM就绪模型，包括条件和维护信息。
Autodesk Revit 3D内部房间模型。
Equipment Ridge and Partners LLP used on this project:
Ridge established a long term relationship withSCCS调查设备,选择提供urveying equipment, through hire and sale due to their excellent customer service, reliability and technical support. A ScanStation P40, a high-definition 3D laser scanner was used because of its increased range and accuracy. This performance provided highly detailed controlled data capture for external elevations and across roof areas. The scanner was also used to traverse through the building from front to back and from the roof to ground floor, giving an accurately constrained control loop. Due to its efficiency, an RTC360 3D laser scanner was also employed to be used on internal offices, meeting rooms and function spaces, which was scanned quickly and accurately in full colour. The onboard Visual Inertial System (VIS) technology andLeica Cyclone FIELD 360mobile-device app saved processing time when the data made its way back to the office, meaning it could be exported to the modelling team quicker. It also allowed Ridge to asset tag mechanical and electrical assets in the field to be included in the Jetstream file.
使用Leica RTC360激光扫描仪进行进一步的内部扫描
通过使用GS16 GNSS智能天线，Ridge团队至少记录了两个控制点，以将扫描数据定向到OS，而TS16总站提供了与GPS收集的控制点相比，用于设置控制网络。TS16还用于选择目标以注册激光扫描数据。在调查结束时，然后处理来自两个扫描仪的捕获的原始扫描数据Leica Cyclone 3DRandLeica Cyclone REGISTER 360, to then output as E57 files to bring into Autodesk Recap.
建筑技术专家 /地理空间测量师Tom Wheatcroft BA（荣誉）评论说：“我强烈建议SCCS调查设备，他们在需要时提供所有设备，并在现场和办公室内部和办公室提供帮助，以帮助处理数据，处理数据，处理数据，这在这个规模的项目中是无价的。
