Verifying absolute accuracy for records to help the world

Author: Richard Davies

It is March 2020, and British artistSacha Jafriis one of many to be impacted by the COVID-19 pandemic when he found himself stuck in Dubai, United Arab Emirates, during a lockdown. Famous around the world for his large-format paintings, Mr Jafri has been dedicated to helping people, especially the young, throughout his career. Over the past 18 years, sales of his paintings have helped to raise USD $60m for children’s charities around the world, and so he decided that he would use his time in lockdown to make a positive impact on a variety of people and organisations.

他的“人类灵感”项目out with two clear goals: raise $30 million USD for various charities whilst setting a new world record for the ‘Largest Painted Art Canvas in the World’. Children from across the globe were invited to share their own artworks online, with a theme of ‘connection and isolation’; Mr Jafri then used these submissions as a base for the 17,000-square-foot artwork he planned to create. The response was phenomenal; children from 140 countries sent in their work, with over 6,000 submissions the first 24 hours alone. Mr Jafri needed a workspace large enough to lay out and paint the huge canvas, and the ballroom of the famous Atlantis, The Palm hotel in Dubai was chosen as a suitable venue.

使其正式

To achieve the world record, Mr Jafri needed to verify the authenticity of the record attempt and the actual canvas size. Guinness World Records are an organisation that collate and publish notable records of many feats, and their record adjudicators answered the call to make sure the painting was created precisely and was large enough to set a world record.

裁决者知道，需要绝对准确地验证画布的大小，并接近基于迪拜的PRD Survey Services协助测量。自2010年以来，PRD已成为该地区在水平和垂直混合用途社区和复杂地层标题分区的领先调查咨询公司之一。他们向整个中东地区的开发商提供了一套调查咨询，现场调查，计划准备和标题的注册服务。为了完成许多任务，他们正在使用Leica RTC360 3D Laser Scanner.

The right equipment

PRD agreed to carry out the measurement of the world record attempt free-of-charge and assigned their Survey and Special Projects Manager, Chris McGinty, a Chartered Land Surveyor from the United Kingdom, to carry out the measurement. In 2019, Chris was responsible for driving PRD’s adoption of Reality Capture technology when they invested in their RTC360. As an existing customer of Leica Geosystems, he did not hesitate to approach the local Leica Geosystems technical support team in Dubai for support with the world record project; this is a team that he is familiar with, as they were there to assist PRD at every stage of their adoption of Reality Capture technology.

A joint decision was made to take two products to measure the canvas in order to provide redundancy: aLeica Nova MS60 MultiStation, and PRD’s RTC360. Both instruments provided the accuracy required for the record attempt, but the RTC360 was selected on the day to measure the record due to the high density of points it was able to measure in a short space of time. Due to the canvas sides being unreliable and showing deviations, an accuracy of around +/10mm was predicted.

According to McGinty,

“这是正在拍摄的高压环境，因此测量必须是正确的。我们需要确保PRD不会犯错，并确保我们选择了可以依靠的正确设备。”

Once the 3D representation of the canvas was captured with the RTC360, the data was quickly downloaded, processed and inspected usingLeica Cyclone FIELD 360软件。这使团队能够非常迅速地为吉尼斯世界记录审判员提供准确的画布测量。麦金蒂（McGinty）能够确认画布确实创造了新的世界纪录 - 组织者对所使用的技术和结果的速度和准确性感到惊讶。

Local support

McGinty has been using Leica Geosystems products for over 35 years, and worked with legacy instruments such as the acclaimed Wild T2 Theodolite and the Wild T2002 electronic theodolite. He states that PRD chose to invest in the RTC360, primarily due to local relationships and the support provided in Dubai.

“There is always somebody you can pick up the phone and speak to. This level of support is something that has always influenced our choosing of Leica Geosystems. I also find that the solutions offered are highly refined - from usability, compatibility, accessories and even the packaging. Everything just works,” says McGinty.

PRD决定，他们的18位测量师中有两名将接受RTC360 3D激光扫描仪的培训。这项培训采用了由迪拜当地技术支持团队提供的专门为期两天的培训课程的形式。麦金蒂（McGinty）认为，尽管他的团队是现实捕获技术的新手，但他们从一开始就发现RTC360非常易于亚博ag真人规律使用，尽管他很感谢他们在此期间得到了当地技术团队的持续支持。

The team are mainly using their RTC360 3D laser scanner for checking plans of existing buildings. The information is then utilised in submissions to the Dubai Land Department and other authorities for issues surrounding titling and areas of commercial premises. PRD believe capturing the full floorplate of these premises in the form of a 3D point cloud ensures absolute accuracy of measurements. This means all parties involved are far more confident that the information they submit is correct. The speed of the RTC360 is also beneficial to PRD, as limited access to commercial sites means they have to be very quick when capturing data. They also believe that capturing all of the data and then being able to visualise sites usingLeica Cyclone REGISTER 360software when back in the office prevents returns to the site, which can be costly and time-consuming.

According to McGinty, this is even more important due to COVID-19 restrictions,

“我们的员工需要进行COVID-19的测试，以便从我们所在的迪拜前往阿布扎比。在进入阿布扎比的第四天之后，他们需要重新测试。这是耗时且昂贵的。RTC360使我们能够在4天窗口中捕获所需的所有数据，即使在大型站点上也是如此。然后，我们可以在返回办公室时使用Leica Cyclone软件来检查数据并拿我们需要的东西。什么都没有错过。”

Benefitting business in the long term

PRD对RTC360非常满意，尤其是在初始培训期间及以后的当地团队获得的支持速度和援助的速度。McGinty认为，Leica GeoSystems提供的硬件和软件解决方案确实可以帮助PRD多样化和发展业务，同时使客户受益。

“The Leica RTC360 has allowed us to offer more services to our customers and complete jobs faster. The number of visits to site are reduced; this all helps us to be more efficient and to offer of these cost-effective to customers,” explains McGinty.

PRD are now investigating theLeica BLK2GO handheld imaging laser scanner, that recreates spaces in 3D as you move. It is handheld, wireless, and lightweight, designed for fast capture reality on the move, anywhere the user goes. They believe that this may be the next step in their development, allowing them to offer more services and higher efficiency to their trusted customers.

As for Mr Jafri, he is now officially in the record book and the sale of his painting has begun, with 70 individually numbered, signed, catalogued, and framed panels being individually auctioned over the coming 12 months. The proceeds will help some of the poorest communities in the world, with a goal of saving 10 million child-lives. He also hopes to “bring education, healthcare and opportunities to those that have previously had neither, with the goal of giving those that need it most a very real opportunity to change the world around them.”

有关这一有价值原因的更多信息可以在人类启发的网站上找到：https://humanity-inspired.com

The world’s largest painting, which was created by British artist Sacha Jafri, has been sold for £45m to raise funds for children's charities –read the BBC News article.