Keisoku Net’s Safety Monitoring to provide a safer and better quality of life in Construction Site. Quick, precise and reliable measurements for daily deformation monitoring of the ground and infrastructures.
Keisoku Net’s main goal is to reassure the safety and security of workers on site.
By integrating monitoring & measurement system with ICT, Keisoku Net is able to provide quick, precise, and reliable measurements to the public. This enable the daily deformation monitoring of the ground and infrastructures. The objective is to contribute “technology to measure” to reassure the safety and security of workers, leading the country development, and achieving better quality of life to the society.
Monitoring constant deformation of surrounding ground at construction site and existing structure. Detects exceeded permissible value of deformation. Notifying the responsible personnel.
Comparing with the layout data and on-site measurement data Plotting the improvement of construction quality
DAMSYS automatically measures deformation of the structure in 3-dimensions and patrols for 24 hours at the survey point of the structure using automatic target aiming total station and GNSS receiver.
DAMSYS is a system that measures the ground and the behaviors of existing structures in three dimensions by using the auto target aiming total station or the GNSS receiver.
This system is useful in a variety of fields including monitoring the effects of adjacent construction on bridge or rail and long-term dynamic observation on slope or dam.
- Observe the data anywhere using the web browser.
- System will alarm if it detects abnormality or reaches critical value in the data.
- Safety management.
Example of Total Station Install prisms at survey points and perform measurement with the total station to obtain coordinates. Deformation from the initial value is displayed in real-time.
Example of GNSSInstall the GNSS receivers at survey points to obtain coordinates in real-time. The GNSS is suitable for large sites and long-term construction projects. The GNSS is resistant to weather conditions such as fog, rain or snow.

- Precise 3D deformation measurement using automatic target aiming total station with an accuracy of 1mm distance and 1” angular measurement.
- Calculates the slope deformation by using the value of slope angle of two prism points placing one at the top and other at the bottom.
- Instantly calculate the obtained data which it allows to monitor the data anywhere through PC and web browser in real-time.
- When the system data reaches to the critical level, it will alarm the siren beacon and automatically notifies to responsible people through e-mail.
- Outputs arrow diagram of plane vector and subsidence cross section report.
3D-Surface is a system that manages the measurement area as a surface and visualizes the mesh deformation amount with colors by leveraging the Multi-Station quipped with the 3D auto measurement function and the 3D scanner function. This system automatically performs measurement for 24 hours a day and lets the user immediately see the scan result.

Data measured with the Multi-Station is transferred to the PC for measurement through wireless communication and the scanned measurement result is displayed on each mesh as the deformation amount using colors and numerical values.
- 24-hour auto measurement
- Arbitrary interval setting
- Scanning automatically correcting the machine position for each measurement session
- Obtaining point cloud data with rapid scan
The 3D Laser Scanner can be used for measurement to obtain a large amount of accurate point cloud coordinates data. Obtained 3D data can be used as a 3D-CAD model to identify the current situation of the construction site in 3D
Survey example of existing river conditions
- Using a large number of coordinates point cloud data measured from 3D Laser Scanner, specialized CAD software quickly creates and outputs an accurate 3D landscape model as a deliverable.
- Point cloud is thinner and its point density is equalized eliminating irrelevant data without damaging the shape of landscape.
- This scanner can be used in every field including dam, slope, tunnel and road in addition to river.
K-Cloud is a cloud service to manage many different measurement sensors in an integrated way by using the measurement IOT. This service contributes to the improvement of the operation efficiency by integrating multiple sensors implemented in the construction field including environmental measuring instruments, survey equipment, embedment instruments and webcams. Measurement data can be managed in the system from saving, analysis through output.
3D Bridge is an automatic monitoring system that displays the difference of estimated height and position information of the bridge girder.
- It manages the coordinates in 3D with auto target aiming total station.
- Real-time survey without any interruption to ongoing operation.
- Using web-browser, user can access the deformation data from any location.
Cantilever method / Cable-supported bridge method By surveying each step of the girder position, you can understand the subsidence on the bridge girder. You can use it as a reference to adjust the wire.

Incremental launch bridge method By surveying the position of the girder and the launching nose, you can understand the position of the girder during the incremental launching.

Cable Erection Method By surveying the position of receiving beam and wire pulley, you can verify the bridge deformation and position of the bridge girder during bridge construction.

- Precise 3D deformation measurement using automatic target aiming total station with an accuracy of 1mm distance and 1” angular measurement.
- Calculates the slope deformation by using the value of slope angle of two prism points placing one at the top and other at the bottom.
- Instantly calculate the obtained data which it allows to monitor the data anywhere through PC and web browser in real-time.
- When the system data reaches to the critical level, it will alarm the siren beacon and automatically notifies to responsible people through e-mail.
- Outputs arrow diagram of plane vector and subsidence cross section report.