For more detailed information about TONOX's Tx-IRI, please see the materials below, or enter your questions on the Contact page.
Tx-IRI Mounted Type (PDF/0.6 MB)Tx-IRI Vehicle-Mounted Type (PDF/0.2 MB)
Tx-IRI
Access & Contact
7 min from Samukawa-Minami IC (Ken-O Expressway)
20 min from Atsugi IC (Tomei Expressway)
10 min by car from JR Hiratsuka Station (Tokaido Line)
| Tel | +81-463-73-9151 |
| FAX | +81-463-23-6655 |
| Hours | 8:30-17:30 (closed Sat & Sun) |
Tx-IRI Overview
The Tx-IRI (vehicle-mounted non-contact road surface profiler) is a vehicle-mounted device that measures the road surface profile and IRI (International Roughness Index) simply by driving with the sensor box attached under the vehicle floor.
The sensor box contains two laser displacement sensors and an IMU (inertial measurement unit), which detect the road surface gradient with high accuracy. At the same time, the vehicle position is determined from GNSS data and vehicle speed pulse input. Through software processing, the device calculates the profile and IRI linked to positioning coordinates and distance data.
This product has been approved as a New Technology Utilization System by the technical review committee of the Ministry of Land, Infrastructure, Transport and Tourism (MLIT) and is listed in MLIT's
"Performance Catalog of Inspection Support Technologies" (in Japanese).
* TONOX detailed information: PDF p. 15 and pp. 62-68, Technology No. PA010006-V0022
Features
- IRI is calculated from the measured road surface profile, so the resulting IRI is highly accurate and reliable.
- It is not affected by vehicle acceleration or deceleration. Profiles are unaffected even by repeated acceleration and deceleration in traffic jams or at intersections. Profiles of the same accuracy are obtained at speeds from 0 to 80 km/h.
- Operation is simple: the driver just presses a button. Data is recorded on an SD card, so data can be accumulated alongside regular work.
Reference Materials
Tx-IRI Vehicle-Mounted Type (PDF/0.2 MB)
Access & Contact
7 min from Samukawa-Minami IC (Ken-O Expressway)
20 min from Atsugi IC (Tomei Expressway)
10 min by car from JR Hiratsuka Station (Tokaido Line)
| Tel | +81-463-73-9151 |
| FAX | +81-463-23-6655 |
| Hours | 8:30-17:30 (closed Sat & Sun) |