The purpose of the bathymetric survey was to confirm and clarify possible sediment build-up at the dam and to enhance the hydraulic model for the river at the dam. The scope further included several tributaries with three other smaller dams. The project extents ranged 10 kilometres, noting that the river is over 0.5 kilometres wide at the Dunnville Dam. An engineering sub-consultant, KD2 Consulting, was also engaged by Hunt Surveys to assist in project management and final deliverables. was contracted by the Grand River Conservation Authority (GRCA) to provide a bathymetric survey of the Grand River at the Dunnville Dam. The Kingfisher system technologies, including Topcon and Sokkia GPS hardware, and the TopNET live network, have performed exceptionally well.īathymetric survey with USV of the Grand River at Dunnville Dam
Economy: faster, more efficient, lower-cost quality data collection over larger areas Going into year three of operation, Hunt Surveys has seen 100% growth per year in bathymetric surveys revenues.Safety: remote control minimizes risk to staff and all stakeholders.Accuracy: survey grade, more and better data, planning and executing the project requirements.The real-time aspect of the RC bathymetric survey USV is highlighted in the three key success factors of Hunt Surveys business model for bathymetric surveys: Areas of weak data coverage can be identified and re-measured at a time when it is easy to do so. Real-time XYZ GPS map data allows the remote operator to drive Kingfisher exactly along the pre-planned routes, and to make the coverages required instantly. The Hypack bathymetry software on the operator’s laptop allows for pre-planning routes, the density of coverages, and instant monitoring of the readings and their quality. The real-time XYZ GPS data from the TopNET live network makes Kingfisher “live” to the on-shore, remote controller operator. The TopNET live network was also chosen for the extensive coverage in Ontario, including many remote locations of the bathymetric surveys. At the time of the Kingfisher build-out for Hunt Surveys, the selected Topcon and Sokkia GNSS hardware were chosen for the ease of integration into the custom Clearpath controller software, and with the bathymetry software by Hypack. Hunt Surveys Inc., an Ontario land surveyor firm, acquired Kingfisher from Clearpath Robotics in 2014, in order to expand into the growing bathymetric survey marketplace. Onshore, the survey data is received by the remote control operator in real-time with the map and data view screens on a laptop. Kingfisher is loaded with survey-grade sonar, an inertial measurement unit, a remote controller Wi-Fi system, and survey-grade RTK GPS. Bathymetric USV With Extensive GNSS Network Coverage
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