Rail

Monitoring requirements typically include tunnel clearance and displacement. Traditional monitoring solutions (AMTS) can also be combined with complementary solutions such as mesh networks of tilt-meters to monitor track alignment, longitudinal profiles to detect local heave or settlement, as well as cant and twist for changes in the two rails geometry.

Automated solutions

Continuous and automated monitoring is often required to guarantee safety on the tracks. All GEO-Instruments systems are weatherproof and continuously connected to provide permanent feedback from the tracks. Alerts can be set for threshold breaches to warn the relevant people selected in the instrumentation and monitoring plan.

Tilt monitoring

Wireless mesh networks of tilts provide a simple to install solution that does not need any external references. Tilts can be installed on the ties or on the rail to directly measure track geometry. Further processed values can be calculated in real time by Quickview, with the data accessible 24/7.

The wireless solution does not require cables which could be damaged, and the sensor case is robust enough to withstand years of use under any weather conditions.

Having a mesh network also ensures a robust signal which can be routed through each measuring point which together act as a relay to the main datalogger unit.

Direct line of sight and obstructions such as railway traffic are not an issue.

Automated motorized total stations (AMTS) monitoring

Total stations are a complete solution which can handle all rail monitoring requirements provided references and direct line of sight can be achieved. If necessary, several AMTS systems can be networked so that common points can be shared and overall accuracy can be improved. GEO-Instruments has successfully deployed one of the biggest underground network of AMTS in London, with 13 Automatic Total Stations.