Method for estimating number of tags in slotted aloha-based RFID system
US7675403B2 · kind B2 · utility
23Cited by
4References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 2, 2006 |
| Grant date | Mar 9, 2010 |
| Priority date | — |
| Expiry date | Jan 5, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W74/08
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Provided is a method for estimating the number of tags in a slotted Aloha-based RFID system, which can estimate the number of tags through a new statistical average scheme using the number of slots, the measured number of empty slots, and the measured number of ID slots. The estimating method includes the steps of: a) setting the number (N) of slots, the measured number (c0) of empty slots, and the measured number (c1) of ID slots as parameters; and estimating the number (n) of the tags by substituting the set values into n=(N−1)/(c0/c1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.