| 摘要 |
A position monitoring system comprising a casing which attaches to an item and a locator chip which inserts into the casing; a distance monitoring unit, where the distance monitoring unit houses a global positioning device which monitors a location of the locator chip; a display screen on a front face of the distance monitoring unit, where said display screen shows the location of the locator chip; a dial attached to the front face of the distance monitoring unit; a range of distances displayed radially around the dial, where an individual distance determines a radius for a circular boundary around the distance monitoring unit and where the dial turns to the individual distance to set the radius for the circular boundary; and a speaker attached to the distance monitoring unit, wherein the speaker sounds an alarm to alert a user when the locator chip leaves the circular boundary. |
