Filming without stopping the waterway.
【Background and Necessity】 ● Some water channels in hydropower plants, water supply systems, and agricultural irrigation cannot be drained. As a result, internal inspections cannot be conducted for extended periods. ● This system allows for the inspection of wall conditions through camera imaging without draining the water. 【Product Overview】*Please also refer to the leaflet. Patent Application No. 2020-002756, Patent Application No. 2020-117943 ● A system that uses a camera-equipped floating device controlled by a parachute anchor to flow nearly centrally through the waterway tunnel, capturing images of the wall surfaces and tunnel cross-sectional shapes, enabling waterway inspections based on those images. 【Features】 ● Inspections of waterway tunnels in a flowing state are possible (there are no losses due to power generation stoppages from draining). ● In waterways directly connected to rivers, temporary closures and the hassle of water drainage are unnecessary. ● Inspections of small-diameter tunnels that inspectors cannot enter are possible. ● Video recording of the waterway walls is possible, allowing for the creation of unfolded photographs and diagrams. *Note: Under murky water, underwater imaging is not possible. ● Continuous monitoring of cross-sectional shapes (such as wall surface peeling) is feasible. ● The parachute anchor pulls the camera nearly to the center of the waterway, allowing for comprehensive imaging of the wall surfaces.
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Model Name WTI-1 WTI-2 WTI-3 WTI-4 Compatible Diameter Diameter 1.5m〜3.0m Diameter 2.0〜4.0m Diameter 1.5m〜3.0m Diameter 0.5〜1.5m Body Width (cm) 65 50 50 23 Body Length (cm) 100 150 102 45 Body Height (cm) 75 86〜144 26 15 Weight (kg) 18 23〜25 7 1.5 Camera Compact Video Camera Waterproof High Brightness LED
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It is widely adopted in electric power companies' hydroelectric power plants and others.
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Company information
Tosetsu Civil Engineering Consultant Co., Ltd. has been engaged in the maintenance and management of facilities for hydroelectric power generation, such as dams, and civil engineering structures for thermal and nuclear power generation, including intake and discharge channels, through investigations, surveys, measurements, analyses, and diagnostics. Additionally, we have developed systems that capture images of tunnel walls using vehicles equipped with digital cameras while driving through tunnels, as well as systems that efficiently inspect marine structures from ships while controlling the ship's motion.