✓ Count and locate workers on 8 km of tunnel in real time
✓ Have an autonomy of at least 8 years on the deployed solution
✓ Decrease the annual cost of the metering solution
✓ Add alarm functionality in case of evacuation
From a technical point of view, the localization solution is based on a mesh network of fixed and mobile tags.The former, also known as anchors, are installed at regular intervals (25 meters) throughout the site, while the latter are carried by workers. The mobile Blue PUCK ID Mesh tags emit signals to the various anchors, which in turn pick up all dialogue and transmit the information to the gateway. However, since the data collected by the sensors is raw, it is transformed into GPS data (latitude and longitude) by the Wirepas Positioning Engine and visualized on the Synox Database web application.
In case of tunnel evacuation, it is possible to remotely activate an audible (buzzer) and visual (LED) alarm from the Synox business application. The LEDs are visible on the entire tag network (anchors and mobiles) and the audible alert is only triggered on mobile tags.
The battery-operated infrastructure, requiring no connection, facilitates the deployment of the solution and ensures an extremely competitive total cost of ownership.
✓ After implementing the solution, SNCF operators were able to know where each worker was at all times.
✓ In September 2019, ELA Innovation brought together all the SNCF operators, each person had positive feedback on the project.
