New Research
Lloyd's Register has published Effective Alarm Management in the Maritime Industry — an analysis of more than 40 million alarm events across 11 vessels spanning over 2,000 days. This is the second volume in their alarm management research series. AnchorGuardian is Lloyd's Register Certified.
Lloyd’s Register does not publish research lightly. When the organisation that sets the standards for maritime safety analyses 40 million alarm events and concludes that alarm systems have become a safety problem in their own right, it is worth paying attention.
Their finding, in plain terms: crews exposed to too many alarms stop trusting them. And a crew that has stopped trusting its alarm system is more vulnerable in the moments when an alarm genuinely matters — not because they are negligent, but because they have been trained by the system itself to expect it to be wrong.
Duncan Duffy, Lloyd’s Register’s Global Head of Technology, was direct about the implications:
Lloyd’s research focuses on commercial vessels — the alarm volumes on a large cruise ship or chemical tanker are a world apart from a superyacht. But the psychological mechanism they describe is identical across every vessel type that runs an alarm system. False alarms erode trust. Eroded trust slows response. And a slowed response is what turns an otherwise manageable situation into a harder one.
For superyacht crews, the dynamic Lloyd’s describes is not a commercial shipping problem. It is an anchor watch problem — familiar, recurring, and entirely solvable.
What alarm fatigue looks like on anchor watch
Most superyacht anchor watch setups do not run one alarm. They run many — GPS position, wind speed, wind direction, depth. Each monitors something that might indicate the anchor is dragging. None of them monitors the anchor itself.
The result is a system that generates frequent, low-confidence signals requiring the watch keeper to make a judgment call each time: is this worth waking the captain? By the second or third alert of the night, that judgment is being made by someone who has learned, through direct experience, that the answer is usually no.
A TYPICAL ANCHOR WATCH
Wind picks up slightly: wind alarm. The vessel swings on its rode as the breeze shifts — entirely normal behaviour: GPS position alarm. The tide drops a little: depth alarm. Three alerts, three judgment calls, two conversations with the captain. None of them were drag events. It is now 01:30 and the watch keeper's relationship with his alarm system has quietly changed.
Lloyd’s documented this dynamic precisely across their research. Crews silencing alarms without proper acknowledgment, losing confidence in their systems, and becoming slower to respond to signals they had learned to discount. Their conclusion was unambiguous: the solution is not more monitoring. It is more meaningful monitoring.
One superyacht captain who piloted AnchorGuardian arrived at exactly the same place through her own experience.
But you have your GPS alarm monitoring your boat?
We use a plethora of alarms, not just the GPS. Basically, anything that can indicate a change in conditions — increased wind speed, wind shifts, changes in depth. This can all lead to a lot of alarms. But that takes me back to the issue of complacency. If you start getting too many alarms, you will certainly react the first time and speak with the watch keeper, but the second time, you may not react so quickly.
With AnchorGuardian, you only require the one reliable alarm. All the other ones — which give slight indications of the possibility of dragging without actually monitoring the anchor itself — they can all be turned off. In the end it should be less alarms but better, more useful ones.
Superyacht captain — AnchorGuardian pilot programme
This is, almost word for word, what Lloyd’s recommends. Fewer signals. Higher confidence in each one. A system the crew can actually trust.
What Lloyd’s recommends — and how AnchorGuardian was built
The Lloyd’s report closes with a set of principles for effective alarm management that map directly onto how AnchorGuardian was designed:
Alarm systems should be designed around how operators actually use them. The person with the most contextual knowledge — the captain — should control the thresholds.
Graduated:
Systems should distinguish between conditions that warrant attention and those that require immediate action. That distinction preserves crew trust and protects rest.
The goal is the smallest number of alarms that provide genuine operational value — not the largest number of things that can be monitored.
AnchorGuardian monitors the anchor directly — force, movement, speed of movement, rate of change — rather than the indirect proxies that conventional setups rely on. By doing so, it removes most of the noise that generates alarm fatigue in the first place. Wind alarms, GPS position alerts, depth triggers: when the anchor itself is being monitored reliably, these indirect indicators can be turned off or significantly reduced.
Alerts before alarms — and the watch keeper’s role
AnchorGuardian uses a graduated model that reflects how anchor watch actually works on a well-run vessel. The watch keeper is the first line of assessment. The captain is the escalation point. The system serves both.
ALERT
Conditions are developing. The anchor is showing early signs of movement or increased load. Anyone monitoring has the information needed to assess the situation and decide whether action is required.
ALARM
The anchor has crossed the threshold that the captain himself defined as significant. Not a generic limit — a professional judgment, set in advance, for this vessel and these conditions. When this sounds, everyone on board knows it means something.
When the alarm sounds, both crew member and captain know it is real. That confidence — built across every quiet night when the system stayed appropriately silent — is what makes the response immediate and certain when it is needed.
Configurable for every vessel and anchorage
Because no two vessels, crews, or anchorages are identical, AnchorGuardian puts threshold control in the hands of the captain. Parameters can be set around:
- Force at anchor — monitor load progressively, flagging a gradual increase in conditions early rather than only at the point of concern.
- Speed of anchor movement — distinguish between slow tidal drift and the sudden acceleration that signals the anchor has broken out.
- Distance of anchor movement — calibrated to the actual swing room in a specific anchorage, not a generic default.
- Rate of change — how quickly conditions are evolving, because gradual change and rapid movement are different situations that deserve different responses.
This level of control means the system reflects the captain’s professional judgment rather than substituting for it. He knows the vessel, the holding ground, the conditions forecast for the night. He sets the parameters accordingly.
A note on Lloyd’s certification
AnchorGuardian is Lloyd's Register Certified
Lloyd's Register is the organisation whose research this article is built around — and the body that has independently certified AnchorGuardian. That is not a coincidence. It means the system has been reviewed against rigorous maritime safety standards by the same organisation that has studied alarm management at sea more deeply than any other. For captains and owners making equipment decisions, that independence carries specific weight.
Less noise. Better rest. A crew that performs.
The Lloyd’s research is a significant piece of work. The full Volume 2 report is available here, and the original Volume 1 report here.
It puts hard data and institutional credibility behind something the superyacht world already understands from experience: an alarm system that generates too much noise eventually stops being listened to. Our own experience with captains confirms what their research shows — anchor watch on a superyacht is, the vast majority of the time, an uneventful night. The question is whether the systems running through that night leave the crew rested and confident, or worn down and sceptical of the next alert.
One reliable alarm. Monitoring the thing that actually matters. Trusted by everyone on watch — and everyone relying on them. That is what good anchor watch looks like — and what Lloyd’s, in their own terms, is asking the maritime industry to build toward.