Equipment Monitoring

Signal Bond Monitoring
Overhead Equipment Monitoring
1
2

Establishment of a new inspection method using monitoring technology

A variety of electrical railway equipment is used to ensure that trains run safely. JR East has developed monitoring systems that use images to detect anomalies in two types of electrical railway equipment—signal bonds and overhead equipment—in order to make inspections less labor-intensive and enable condition-based maintenance (CBM). TEMS is the contractor for some of the monitoring operations performed using these systems.

MENU of What We Do
Back to top of What We Do

Inspections

Signal Bond Monitoring

Signal bond monitoring is performed by analyzing images captured by cameras installed on JR East’s commercial trains to identify any anomalies in the signal bonds.
After automatic judgment is performed, we check the data and send the results to JR East’s maintenance team. We are also preparing to expand the area of our monitoring work to include additional lines.

Overhead Equipment Monitoring

Image data captured by cameras installed on East-i, an inspection car, is used to check that the line hardware is in proper working order. TEMS screens the data to find possible issues, such as broken fittings, and sends it to JR East (Maintenance Center, etc.) who inspect the equipment. An AI-based automatic judgment system has been adopted as a monitoring system to make the screening work less labor-intensive. In future, we aim to be part of further work to establish and entrench new monitoring operations that will replace on-site inspections, improving the quality of screening and the safety and reliability of train services to an even greater degree.