How Does A Lone Worker Safety Device’s GPS Tracking Work?

Global positioning system (GPS) tracking is a relatively modern form of navigation which relies on a network of 27 satellites in high orbit around the Earth to calculate the precise location of a tracking device; such as a TWIG Australia lone worker product. The satellites broadcast a signal at relevant intervals to calculate the position of a tracking device relative to the signal source. The time taken for the signal to return to the satellite gives an indication of how distant the tracker is and by taking three or more of these signals and triangulating the distances a set of GPS coordinates are generated; giving the position of the tracker. 

Once a set of GPS coordinates is recorded, it can be stored and communicated between networking devices using a 4G, WiFi, Bluetooth, SMS or GPRS connection. Most networking technology has a GPS function enabled: Android, IOS, laptops and desktops generally carry a GPS tracker which can be used to find, store and broadcast the location of the device. 

How Do TWIG GPS Functions Operate? 

TWIG Australia’s lone worker safety devices all carry a global position system which uses the global positioning system satellites in high orbit around the Earth to frequently monitor the location of the wearer. When a lone worker safety device’s alarm is triggered, the last known location of the tracker is broadcast to security headquarters where a call is made to emergency services. Responders can use this information to quickly retrieve the lone worker who has triggered the alarm to safety. 

Limitations of TWIG GPS Signals 

There are few, but relatively noteable situations where a TWIG Australia lone worker safety product would not be able to use its GPS signal. Underground work environments where lone workers are employed are one example where a GPS signal would get stuck in the heavy concrete structure located above the lone worker: between them and the GPS satellite. Highly remote areas are another example where a line of sight between three GPS satellites and the tracker is unavailable therefore the ability to triangulate a tracker’s coordinates is nonexistent. 

Solve Limitations on TWIG GPS Signals 

In underground working environments, TWIG Beacon devices can be used to transmit GPS coordinates between an underground relay before broadcasting them to a high-orbit satellite. This means that even if a direct GPS signal is nonexistent, a lone worker can still transmit their coordinates in the event of danger and be rescued successfully. In highly remote areas, TWIG lone worker safety devices can transmit a SMS signal using low-orbit satellites to alert security HQ about an incident.   

Lone Worker Safety Products For Sale 

TWIG Australia is open for business Monday to Friday, 9:00am to 4:00pm. Call our friendly sales team on (02) 9412 2100 to place an order for any of the GPS-enabled products listed on our site or to ask any questions about creating a lone worker safety plan for your work environment. Keep your workers safe from distress, injury and threatening situations. We look forward to receiving your call.