Educational Support
Underwater survey business
We made the most of the ROV
underwater survey
We solve various work problems in underwater civil engineering (marine, port, river, lake, etc.).
Issues in visual observation of underwater infrastructure by divers
・Inefficiency and difficulty in turbid water, high-velocity water areas, and water depths of 40 m or more
・Evaluation by estimating the entire structure from observation results of points or lines
・Evaluation of underwater infrastructure is determined by individual divers. Varies depending on skill and experience.
・The results are mainly 2D drawings and photo collections, and it is difficult to support IOT and ICT.
ROV Solves Visual Observation Challenges
With ROVs, underwater surveys and observations become familiar.The survey of underwater structures such as rivers, fish reefs, bridge piers, dams, and harbor facilities can be conducted more frequently and at lower cost, and it is expected to be used in a wide range of areas such as rescue, search, and assistance in times of disaster.
It is also possible to combine observation equipment such as ROV and sonar to visualize and convert underwater topography and structures into data.
Advanced optional equipment
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U-QPS
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imaging sonar
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laser scaler, etc.
Characteristics of the ROV business
low cost
It is possible to provide it at a low cost because the survey is conducted at our own facilities.
high safety
It ensures a high level of safety because it does not require human diving work.
solid research
Since the survey video can be shared in real time, reliable surveys are possible.
Main usage scene
Structure/ship bottom survey
Investigation of structures installed on the seabed such as sinkers, sinker chains, structure foundations, caisson installation status, search for lost items, etc.
Investigation of closed spaces (pipes, water tanks, etc.)
Investigate the state of deterioration of walls and pipes in closed spaces. It is possible to navigate while acquiring the position inside the structure using the omnidirectional sonar.
Dam/offshore wind power survey
Investigation of dam ancillary facilities (embankment body, screen, water intake device), investigation of offshore wind farm foundations, power cable burial status, etc.
Deputy features ROV
made the most of
Promoting Underwater Surveys for “Urban Agricultural Civil Engineering”
We provide cost reduction by realizing high operation and longevity of agricultural and civil engineering equipment through regular inspection and maintenance.
low cost
high safety
solid research
Main achievements
Fixed net survey
Depth 40~80m
Fish tank sinker survey
Searching for a sinker whose sinker chain has come off
Fixed boom survey
Investigation of the status of oil fences installed in the sea
Chemical plant pure water tank
internal investigation
Offshore wind farm cable survey
Investigation of buried power cables
Chemical plant pure water tank inner surface investigation
Vessel shell survey
Investigation of large work boats (side thrusters and bilge keel)
Ship survey, seafloor survey
Deterioration investigation of moored commemorative ships
Port Seabed Block Survey
Installation status survey of wave-dissipating blocks installed on the seabed of harbors
pipeline survey
Box culvert pipeline survey (500m)
Dam body investigation
Investigation of location information of damaged areas
Tanker shell survey
Follow-up observation of repaired areas
Tokyo Bay Seabed Salvage Survey
Search for damaged parts of offshore structures
Ironworks cooling tank bottom survey
Measurement survey of cooling tank walls
Port jetty caisson survey
Port caisson section installation status measurement survey
