| 摘要 |
A security and tracking apparatus includes at least a first signaling unit and a second signaling unit, wherein the apparatus is adapted for transmitting the location of each signaling unit when the first and second signaling units are separated by more than a preselected distance. A method to locate a person, animal, or object, includes providing in contact with or at least in close proximity to the person, the animal, or the object, at least a first signaling unit and a second signaling unit, wherein each respective signaling unit is adapted for identifying the location of the signaling units and for transmitting the location of the signaling units when the first and second signaling units are separated more than a preselected distance; and activating the signaling units to transmit the location of the signaling units.
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