| 摘要 |
The Wearable Satellite Tracker (WST) is a worn by the operator and carries a two-way satellite transceiver that communicates to a Central Tracking Monitor a message with; a unique serial number of the device, position information (via GPS receiver), and the status of the WST. It requires no local equipment, local power or monitoring personal. Because it does not relay on any local equipment, cellular or any local network it can therefore can be used anywhere in the world. The system provides for test messages which give an acknowledgement that the complete system is working. It can be embedded into a personal floatation device for use on water or into a utility belt for use on land. The alarm can be triggered with a water sensor, panic button for the operator and/or other sensors as require by the operation environment. The Central Tracking Monitor will register test messages the WST has passed and for alarms it will alert persons or organizations as required. The ability to send and receive a system check message from the Central Tracking Monitor by the operator gives a high degree of confidence of the WST working in an alarm state.
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