Is Direct to Device (D2D) Technology the Answer to Lone Worker Safety?

What is D2D?

D2D refers to the ability for an unmodified device – such as a cellphone – to access satellite connectivity. This was pioneered by Apple and Globalstar as they partnered to provide an emergency satellite communication service for iPhone users in 2022.

How Does D2D Work?

There are two ways D2D can be delivered. The first is by building a chipset into the device that allows it to access a specific satellite network. This is the option chosen by Apple, and its satellite network partner Globalstar. The benefit of this approach is that Globalstar has licensed radio spectrum that allows it to provide a service anywhere where it has a satellite overhead. The downside is that the device can only communicate with a single satellite network.

The second way to deliver D2D is to adapt the satellites themselves so that they are compatible with the communication protocols already in use by cellphones and other devices – i.e. 4G, 5G etc. This is the approach chosen by Starlink, AST SpaceMobile and Lynk, all of whom are in the process of launching satellites compatible with terrestrial network communication standards.

The benefit of this approach is that, in theory, all compatible satellite networks are available to the cellphone user as simply another network on which to roam, and they can do so depending on what their commercial agreement is with their usual network service provider (e.g. Vodafone, AT&T etc.).

The downside is that because these are new satellite networks, they do not have licensed radio spectrum through which to deliver their service; this is already distributed among older, more established satellite constellations. So to deliver service, the new satellite network operators need to partner with a terrestrial network operator to ‘borrow’ some of their licensed radio spectrum. Services are only available where these partnerships exist, so they are not global. Starlink, for example, has partnerships in 10 countries; outside of these countries, it cannot provide service.

How Could D2D Benefit Lone Workers?

In 2021, we asked lone workers across multiple industries if, as part of their job, they sometimes or often travelled out of cellular coverage. 51% responded yes. We then asked about the implications of this; did they ever feel unsafe, for example, or been unable to send or receive a message when they needed to.

As the graph illustrates, lone workers operating in areas without voice, text or internet services feel – and are – more vulnerable. 15% of the overall workforce are considered lone workers, and NSC data indicates that working alone increases both the likelihood of incidents, and the severity of adverse outcomes.

Although we can’t draw a parallel, it’s striking that industries with a high number of lone workers – Utilities & Renewables, Oil & Gas, Forestry, Emergency Response, Community Healthcare – are also struggling with staff retention.

• 80% of Oil & Gas workers are considering leaving the industry
• The US Forest Service has lost nearly half of its permanent employees in the last three years
• In the UK, 32% of social care workers leave their roles every year – an increase of 9.1% over the last decade.

While it’s not a silver bullet, the benefits of lone worker monitoring technologies are well documented: improved safety outcomes and staff morale, leading to greater staff retention, and saved costs in recruitment and insurance premiums.

An estimated 2.3 million lone workers in Europe, North America, and Australia & New Zealand now have access to a lone worker safety solution, with the market estimated to grow at a rate of 7.1% between 2024 and 2029 – further indication of the value of these platforms.

But if they can’t be accessed because the worker is outside cellular coverage, they fail. D2D with its ability to confer internet access to any compatible cellphone with a relevant commercial agreement, unlocks the ability to access these platforms from very remote locations where cellular coverage is nonexistent.

RockSTAR is more than just a rugged satellite tracker; it’s a powerful solution for real-time visibility, safety, and communication in the world’s most remote environments. When paired with Cloudloop Tracking, it offers an intuitive platform for monitoring, messaging, and emergency response, ensuring that lone workers, field teams, and mission-critical personnel remain connected no matter where they operate.

For organizations with specialized requirements, we work with trusted partners like Locate Global and JCSys, who provide advanced functionality for healthcare, emergency response, and military applications.

Additionally, our well-documented API allows operators to seamlessly integrate location, messaging, and event data into their own preferred platforms, giving them complete control over their tracking and communications ecosystem. Whether using Cloudloop Tracking or integrating with an existing system, RockSTAR ensures reliable, global connectivity for those who need it most.