| 摘要 |
A locating system and method employs a plurality of radio frequency readers (10, 20, 30) arrayed with respect to a region having a plurality of zones (Z10, Z12, Z123, Z20A, Z20B, Z23, Z30) within which a plurality of radio frequency tags (50, 52, 54, 56, 58) are to be located. Each reader (10, 20, 30) identifies those tags (50, 52, 54, 56, 58) present within its coverage area (12, 22, 32). The coverage areas (12, 22, 32) of all the readers (10, 2 0, 30) taken together substantially cover the region and at least part of the coverage area (12, 22, 32) of each reader (10, 20, 30) overlaps at least par t of the coverage area (12, 22, 32) of at least one other reader (10, 20, 30). A data processor (40) receives the identification (110) of the tags (50, 52, 5 4, 56, 58) within the coverage area (12, 22, 32) of each reader (10, 20, 30) an d applies a set of locating rules (112) to determine therefrom in which zone (Z10, Z12, Z123, Z23, Z30) within the region each identified tag is located (114).
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