自2016年以来，Topcon定位集团专门为芬兰（NLS） - 或MAANMITTAUSLAITOS的国家土地调查提供 - 以其高精度的地理系统解决方案，使本组织能够保持最高的工作标准和数据生产标准。现在，NLS执行的最近测试已经证明了Topcon的GNSS接收者在市场上最有效，结果看到TopCon至少举行了唯一的供应商。
芬兰的国家土地调查是什么？
The National Land Survey of Finland is an official body that performs cadastral surveys, maintains information about properties and dwellings, handles registrations of titles and mortgages, produces map data and promotes the research of spatial data. The organization is responsible for various national geo-data services online and at various service locations throughout the country, with users including landowners, real estate agents and hikers. They have offices in 36 localities across Finland, from Mariehamn to Ivalo, employing 1,630 people.
A Lasting Relationship
每四年一次，NLS对地理设备，服务和解决方案进行评估，以确保最佳效率和可靠性。此招标过程最后在2015年进行，Topcon接收器优于现场测试中的所有替代品，满足所有其他要求。这一LED TOPCON赢得了2016年供应400个Hiper SR网络GNSS接收器，并保留合同两年。
The receivers were used to carry out field-based operations connecting to and receiving real-time kinematic (RTK) data from the national network’s GNSS system. Field surveyors have also been using Topcon’s MAGNET software to facilitate seamless field-to-office workflow.
在2016年底，NLS测试了Topcon的Hiper HR接收器和FC-5000现场控制器，发现它是他们使用的最佳组合，所以次年他们订购了206个这些套件 - 以及2018年的其他171。
将Topcon置于测试中
Towards the end of last year, the NLS was faced with the decision to either continue its partnership with Topcon or initiate its routine tender for the years 2020-2024. With a tender process typically taking around 18 months to complete, the NLS decided to first take all available GNSS receivers on the market in Finland and pit them against each other in a series of controlled tests to determine which was most effective.
The tests saw eight different options compared, including Topcon HiPer HR and Topcon HiPer VR. The receivers were monitored at one of NLS’ test sites in Kuusijarvi, Vantaa, which has a terrain typical of those the NLS works in: one with dense-growing, high evergreen trees. The tests involved setting up all of the receivers in the same spot and counting how many correct fixes – and how many errors – each receiver made in the space of 20 minutes. This was repeated in ten different locations, with all the findings recorded and compared.
And the Winner is…
Once the results were in, the NLS confirmed that Topcon’s HiPer VR was indeed the best performing receiver of the group, with the HiPer HR in a close second place, and therefore agreed it was already equipped with the ideal solution so did not need to open a tender in 2019.
Marko Ollikainen, chief expert production support services at NLS, said “The environments we work in at NLS can make it tricky to take accurate RTK measurements. Quite a lot of our work has to be done in forests, where trees and bushes can make the initialization difficult and often unreliable. However, the Topcon devices we’ve been using over the past few years have been so productive and the results so reliable that most of our measurements can now be done by RTK, even in more challenging environments.
“As a result, our use of traditional total stations has decreased even further – we’re doing the same job more efficiently and more accurately with Topcon’s RTK receivers, which ultimately helps us to reduce the time span of our cadastral surveys and therefore improve cost efficiencies. These most recent tests have corroborated the superior quality of Topcon’s solutions and we look forward to continuing our excellent relationship for years to come.”
Considering the recent findings, NLS has decided to continue with Topcon as the sole provider for the coming year. At the moment, the total number of Topcon equipment used is 400.
