| 英文摘要 |
This invention is related to a RFID tag, particularly, to a positioning method using an algorithm. Nowadays, communication over wireless technique is widely applied on our daily lives. It brings us extreme convenience and usefulness on many aspects. Positioning is an example of applying the wireless technique. The known techniques about positioning include global positioning system (GPS), Cell identification, infrared, IEEE 802.11, supersonic, Ultra-wideband, Zig-bee, radio frequency identification (RFID), etc. GPS provides precisely positioning with low cost, however, it is appropriate for outdoor use only. Cell ID and super-wide band are apt in large district positioning. Infrared position is known for environmental interference-prone and high cost for apparatus installation. The performances of IEEE 802.11 and Zig- Bee techniques in positioning have been found not as good as expectation. Cost for constructing a supersonic positioning system is usually expensive. |
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