Safe & quick
inspection

No traffic
regulation
requiredCompliance
Inspection
light remains
on while
driving—New Tunnel
Inspection—
Vehicle dedicated to tunnel inspection

MIMM
Through facility diagnosis, our company
solves customers’ problems and provides
local society with “Safety and Security”

3D Configuration

Simultaneous measurements possible

Keisokukensa Co., Ltd. ~ MIMM ~http://www.keisokukensa.co.jp/MIMM.html

New Tunnel Inspection Vehicle dedicated totunnel inspection

MIMM
Feature1

Safe & quick

Feature 2
3D simultaneousmeasurements

Feature 3

Feature 4

High accuracyIntuitive!!

The total number of road tunnels is currently around 10,000, which extend a total distance of about 4,000 km. Our
company adopts exclusive vehicles (which we call MIMM) and develops technology which enables inspecting andexamining a large number of tunnels efficiently and with a high level of accuracy. MIMM allows you to capture image
data and 3D laser data in one single measurement.
These images are comprehensively analyzed and a wide range of cracks (deformed states) in the concrete walls of thetunnel can be expressed visually along with any deformation. Enabling you to intuitively understand any abnormal areas,
MIMM is well suited for examining tunnels.

New product

MIMM Compact Measurement SystemFeatures(1) Compact, but equipped with a laserand camera system which enables
simultaneous measurements

Camerasystem(2) On-site assembly is possible when
conducting measurements
1,300mm

Lasersystem(3) Measurements are possible using theportable batterym0m

80m

800m

Railwaytunnel

Water supply
canalCarried by a lighttruck

MIMM 2 Measurement System Outputs
MIMM laser measurement technology

MIMM image measurement technology
Camera partIMUGPSRecorder
Recording unit

High-densitylaser

Lighting system

Main specification

Main specification• GPS (3 units), IMU (Inertial Measurement Unit), cameraand high-density laser scanner are integrated tocomprise one unit.

• Consists of a lighting system, a camera that
captures the standard tunnel wall in high-resolution
images of 2 mm/pixel and a recorder that records
captured images continuously.

• 3 GPS units capture the vehicle position with a highlevel of accuracy, which enables the 3-dimensional
space of roadway surfaces and surrounding areas to bemeasured with a high level of accuracy, within 10 cm ofabsolute accuracy and within 1 cm of relative accuracy.

(1) Laser measurement output• The camera can be quickly adjusted for any shapeof tunnel by combining with an electric universal
head in order to film high-definition images at theoptimum angle.

(2) Image measurement output- New analysis -Group of points in a tunnel

Filmed development image

CSV format, coordinates andGPS time

jpg-format, at every single span+=Analyze a group of points inthe tunnel and measure thedimensions of their relativepositions

Section DWG
Cut the section every 20 m

You can have an
accurately designed
detailed inspection
and repair plan!

Compared with current
analysis, provides low-cost,
simple and intuitive results.

Deformation development plan
View using CAD software(dwg format also available)(1) + (2) Record the shape dimensions and the deformation of the entire tunnel, for age management

- New Development No. 1 Automatic extraction using AI learning
Automatically extract cracks and objects from images

Box
LightingDevelopment image

Firehydrant TelephoneboothLightingBoxSign

Correct image

Results of extracting objects

Results of automatically extracted cracks

Result of extracting water leakage and free lime

No. 2 Point group analysis to measure section displacement
Output tunnel displacement (vertical, horizontal) on agraphNo. 3 Composite support software of images
Compound images from multiple cameras using asemi-automatic process

Correlation
displacement
Process concept

Flatdisplacement

Vertical displacement

MIMM laser and image data

Contact

Keisokukensa Co., Ltd.

1-8-3 Jinnoharu, Yahatanishiku, Kitakyushu 807-0821

TEL. +81-93-642-8231 (main)
FAX. +81-93-641-2010
http://www.keisokukensa.co.jp

Composite
image