Laser scanning has transformed efficiency for Faithful Registered Surveying in Japan

作者：Yoshie Katagiri

“有了BLK360，基本上没有一个无法调查的地方，” Takashi Nakata。

忠实的注册测量(FRS) is a land surveying company based in Osaka City, Japan. The company’s work ensures an accurate record of property in the area, and is essential for the smooth running of the property market, validating corporate and individual property rights. The company recently increased the speed and efficiency of its on-site survey work by introducing Leica Geosystems' imaging laser scanner, theLeica BLK360.

Objective: reducing time spent on-site

FRS的土地和房屋测量师Takashi Nakata解释了检查过程。“通过土地检查，我们对地面进行调查，以定义财产的确切边界，澄清土地使用澄清，并注册到法律事务局。为了进行建筑物检查，我们将建筑物的类别进行分类，定义结构并调查地板区域空间，并将结果记录到法律事务局。我们测量并评估称为“边界”的看不见的东西。

The business’ customers are mainly real estate companies that handle custom construction as well as construction companies and design offices. Speed and price are important factors for clients, so the more quickly that FRS surveyors can work, the more competitive the business is. It was with this in mind that that company introduced 3D laser scanning. “I felt that it is significant to reduce the time of on-site work reliably,” Explains Nakata.

Nakata researched various laser scanners before choosing the BLK360. The deciding factors were fast performance and mobility, with some other products considered weighing up to four times more than the BLK360. “I liked the BLK360's extremely compact size and high performance. Its vertical orientation makes it convenient for measuring in tight spaces. We decided that being lightweight and highly manoeuvrable means that you can easily use it for everyday use, which is a significant advantage in terms of investment effect.”

快速测量可见度不佳的站点

3D激光扫描的主要好处是能够快速测量困难的空间。通过使用Total Station进行遍历测量，您只能在两个或更多点的视线之间进行测量。如果您需要在一个角落或被树木阻塞的墙壁上进行测量，则需要移动总站以测量更多点以在屏障周围建立一连串的视线。

A laser scanner works completely differently. It captures physical objects in 3D, producing a comprehensive set of measurement points known as a point cloud. Nakata explains, “In places with poor visibility, such as climbing stairs between high fences, it is very difficult to measure with a total station, and I feel stress. If you set BLK360 at multiple places in the survey site and acquire point clouds, you can register point clouds by using [a point of reference], for example, a utility pole that is visible on the side without walls. Even in a complex site where the visibility is blocked , the measurement data can be obtained with the minimum number of scans without any worries, which is a great advantage in reducing the time required for on-site work.”

Comprehensive datasets save time and prevent re-work

激光扫描仪捕获整个网站在一个点cloud, so if you are asked by a client for more detail than was in the original brief, you don’t need to go back on-site to take more measurements.

“Before, when I made a cross-section of a position and presented it, I was often suddenly told, ‘I want a cross-section of this position.’ In the past, we had to go to the site again and repeat the measurement each time. Not only revisiting the site but also measuring extra points just in case is an extra and wasteful task, which will increase the on-site work hours. With BLK360, the problem of redoing on-site work has been resolved. Since we have 3D data, we can handle level measurement and cross-sectional views immediately by processing point cloud data stored in office PC if we receive an additional request,” says Nakata.

减少工时30％

As initially expected, the BLK360 delivered significant results in reducing fieldwork time. “It took three hours for one person to use the BLK360 to measure a site, which would take three hours for two people with a total station. The number of man-hours has been halved to three man-hours," explains Nakata. Adding in the time taken to process and edit the point cloud and the time for projects, which still require using a total station, has saved the business about 30% in man hours since the 3D laser scanner was introduced.

“In addition to simply reducing the number of man-hours, two people can do other things in parallel, such as one person can go to the government office and request for necessary documents while one person is surveying with BLK360. It is also significant that the number of tasks that can be completed by one person has increased. The degree of freedom of work has increased,” Nakata explains.

通过激光扫描发展业务

能够提供3D激光扫描作为一项服务正在帮助FRS区分和发展其业务。该公司目前正在向客户和潜在公司教育激光扫描的优势和潜在用途。

Nakata says, “We have already made a video explaining the points of the point cloud data, and attached 3D images with the boundary points and boundaries highlighted, making it easy for customers and related parties to appreciate. Some customers are considering using it in the design of pre-built houses.” Nakata is also researching combiningUnmanned Aerial Vehicle（无人机）使用BLK360捕获数据，以扩大公司可以进行的工作范围。“有了BLK360，基本上没有任何地方无法调查。”