Keeping a close eye on a vital and extensive infrastructure complex in the Northern Territory around the clock and in virtually all weather conditions has become a reality thanks to Trimble technology, UPG (Ultimate Positioning Group) expertise and the foresight of a highly regarded surveying group.

Earl James and Associates (EJA), which was established in 1982, have employed the Trimble T4D system operating with two S9 robotic total stations, supplied by UPG. The system has enabled automated monitoring of a concrete structure’s subsidence in the Northern Territory since the middle of last year.

The system is configured to measure 70 monitoring prisms installed along the structure every hour around the clock with the results streamed live via the internet. From this, results and data can be viewed from any connected device for analyses, and configured to send email and SMS alerts should movement be identified that exceeds set parameters.

EJA installed the equipment and system which was then followed by UPG’s T4D ‘guru’ Brent Dawson coming to the site to do training and assist with the system’s configuration.

There were a number of hurdles to overcome in the early stages due to poor internet connection at the site and power issues. UPG worked with EJA around the clock to ensure delivery of the product met client expectations and our own Brent Dawson was instrumental in problem shooting. The hurdles were overcome and the system has proven to be reliable despite the extremely harsh conditions the instruments are operating in.

In fact, the system didn’t so much as miss a beat during a recent cyclone in the region, even continuing to stream data while crews cleaned up the site, post-cyclone. Also, at the time of preparing this article, one of the S9 Instruments currently has 6900 hours continuous operation without issue.

EJA’s Franck Delmas said while Trimble had been its preferred supplier, and in turn UPG, for many years, the service and support was a big part of why the firm continues to work with UPG.

“Brent Dawson really went above and beyond for us to ensure the system was delivering what we needed. The UPG team’s flexibility and drive to deliver what it promises is second to none. We couldn’t be happier. We have a two-year contract on this monitoring project. If that isn’t extended, we know we will be able to put the S9’s to good use in other areas of our business.”

Franck also said the use of Trimble S9 robotic stations meant they could be utilised for other work after this project was completed.

LOCATION
Northern Territory
CLIENT
Earl James and Associates
SCOPE
70 monitoring prisms installed along the structure
START DATE
08/10/2018
COMPLETION DATE
07/02/2019
“The system didn’t miss a beat”

EJA undertook the equipment install prior to UPG’s T4D guru Brent Dawson attending site to undertake training and assist with the system’s configuration. There were a number of hurdles to overcome in the early stages due to poor internet connection at the site and power issues. UPG worked with EJA around the clock to ensure that the delivery of the product met client expectations. UPG’s Brent Dawson was instrumental in troubleshooting.

The hurdles were overcome and the system has proven to be reliable. The conditions in which the instruments operate are extremely harsh, so much so the system didn’t miss a beat during cyclone Marcus, continuing to stream data whilst crews cleaned the site.

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