On sensitive sites,
no lone worker stays invisible.
For CEA and Eiffage Energy Systems, Pole Star deployed a smartphone-based lone worker protection solution - real-time indoor location plus man-down alerting - running fully on-premise on a closed network, with no public cloud in the loop.
Working alone, where help is furthest away
In critical industrial environments, some operators must work alone - often in technical buildings, industrial zones or confined areas where risks run significantly higher than in standard operational settings. Industrial equipment, environmental constraints and physical isolation can all delay assistance when an incident occurs.
On sensitive, restricted-access sites, worker safety is not just operational - it is a regulatory and governance requirement.
The challenge was to provide continuous visibility and rapid alerting - without relying on public cloud services, and while keeping full control over data and infrastructure.
Safety services that respect the site's security rules
The deployment protects isolated workers in sensitive industrial environments - designed so that safety never comes at the cost of operational or cybersecurity constraints.
- Staff tracking based on smartphones, avoiding dedicated wearable devices
- Coverage of complex indoor environments, including technical buildings and industrial zones
- Operation on a closed network, with no dependency on public cloud infrastructure
- Deployment on restricted-access sites, subject to strict security and data governance rules
Closed network, on-premise - data never leaves the site
Located continuously, alerted three ways
Pole Star delivers a smartphone-based lone worker protection solution combining real-time indoor location with advanced alerting. Workers are located continuously as they move through technical and industrial spaces, so security teams keep real-time visibility even in complex layouts.
In case of danger, an alert can fire three ways
Panic button
The worker triggers an alert deliberately, the moment they sense a threat.
Immobility detection
Abnormal inactivity is flagged, even when the worker can't call for help.
Fall detection (man down)
A sudden fall is detected and signals a potential accident on its own.
A secure, industrial-grade architecture - kept on site
The solution runs fully on-premise on a closed network, combining Pole Star's location stack with WaryMe for alert management - so location and alerts stay under the site's control.
NAO® Mobile SDK
Smartphone-based location, embedded on the worker's device.
NAO® Maps
Integrated indoor cartography for the site's technical buildings.
NAO® BlueSpot beacons
BLE infrastructure bringing accuracy to complex indoor areas.
WaryMe integration
For alert management and escalation to the right responders.
Fully on-premise
Operating on a closed network - nothing leaves the site.
What safety teams can actually do with it
Day to day, the deployment gives safety teams a working toolkit - from live tracking to a full audit trail.
Continuous real-time tracking
Of isolated workers, as they move through the site.
Geolocated alerts
Triggered by button press, immobility or fall detection.
Indoor & near-outdoor location
Around complex industrial buildings, not just inside them.
Centralized supervision dashboards
A shared operational picture for safety teams.
Full event & alert history
Supporting audits and compliance requirements.
The through-line across all five: no worker remains invisible, even in the most constrained environments.
Clear benefits, where they matter most
On a critical, high-security site, the solution delivers benefits that are as much about compliance and control as they are about protecting people.
Significantly improved safety for isolated workers
The core outcome - protection that travels with the worker.
Reduced reaction times in case of incident
A geolocated alert points responders straight to the person.
Compliance with industrial & regulatory constraints
Including data governance on sensitive, restricted-access sites.
Robust and scalable
Adapted to critical and high-security environments, and ready to grow.
On a site where the rules are strict, the win is a solution that improves safety without bending those rules - data and infrastructure stay on site.
Delivered in partnership
Client / site
Integration
Alerting
Location platform
Real-time protection,
on your terms and your network.
If your teams work alone in technical or high-security environments, the same smartphone-based lone worker protection - man-down alerting, fully on-premise - can be deployed on your sites without sending a single data point to the public cloud.
Related worker-safety case studies
Rail · Field teams
SNCF
Indoor location supporting the safety and coordination of field staff.
Read case studyInfrastructure
Société des Grands Projets
Location services across the Grand Paris Express programme.
Read case studyFacilities · Airport
Onet at Paris CDG
Smartphone-based location for mobile facilities teams on a large site.
Read case study