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DOC-0132 Crewsafe User Manual v.1.2
Mobilarm Ltd. © 2009
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Overview of Mobilarm Crewsafe
Mobilarm Crewsafe is a wireless safety network designed to improve the workplace
safety of commercial mariners by keeping track of the crew at work at all times. A
'meshed' series of wireless routers automatically detects emergencies involving
personnel and can initiate a full-scale alert within seconds of an incident such as a man
overboard event occurring.
Each employee carries a small transceiver Tag,
which remains connected to the network via
Crewsafe wireless routers. The network immediately
detects any break in the signal and automatically
raises an alarm if the connection is not re-
established within a few seconds. Therefore, if a
crew member goes overboard, the signal is lost and
an alarm is raised. Each Tag also features a duress
button that can be manually activated if an employee
is in distress onboard a vessel.
Any break in a Tag's signal, for any reason, raises an alarm. If a Tag is damaged, its
battery dies or if a person moves out of range of the network, an alarm is raised. This
ensures that co-workers are immediately aware of a possible emergency and employees
are not be left unprotected.
When installed on vessels, Crewsafe can interface with existing chart plotter navigation
systems and GPS devices. In a man overboard (MOB) emergency, your Crewsafe
system can automatically send a waypoint position of where an incident occurs to your
vessel’s chart plotter. This provides essential track back navigation data. The system can
report and track multiple events, but will always prioritise the more serious risk of man
overboard over other emergencies.
Following is an introduction to the various elements of the Crewsafe system.