Simoco Sentinel Lone Worker Protection Device with GPS Fall Detection and LTE Bidirectional Voice for Remote Field Operations

The Simoco Sentinel is the lone worker protection device designed for organizations that send personnel to work alone in risk environments — high-voltage line inspectors in rural zones, maintenance technicians at remote substations, security guards on nighttime rounds at industrial facilities, or field personnel in nighttime mining operations — where incapacitation from a fall, electrocution, or violent act may not be detected for hours without an automatic alert mechanism.

The fall detection system uses a three-axis accelerometer applying a movement classification algorithm trained via machine learning on real fall patterns — differentiating between the abrupt deceleration of a vertical fall (>3g in under 80 ms followed by immobility) and normal rapid movements from intense physical work like climbing stairs or handling tools, to reduce false alarms that degrade system credibility. When the algorithm detects a potential fall, the Sentinel emits an audible alert for 15 seconds allowing the worker to cancel it if it was a false fall; if there is no response, it automatically transmits an emergency alert with GPS location to the control center along with the 30 seconds of audio prior to the fall recorded in the internal circular buffer.

The configurable inactivity alarm — triggered when the device detects no movement for a programmable period of 3 to 60 minutes — protects against incapacitation scenarios without detected fall, such as loss of consciousness in seated position or immobilization. The LTE bidirectional voice link allows the control center operator to establish two-way voice communication with the field worker without them needing to do anything — the Sentinel answers the incoming call automatically in hands-free mode with the speaker activated, allowing verification of the worker's status or coordination of assistance while the worker may be incapacitated to handle the device.