Tracking variable conditions using radio frequency identification
US7659823B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2007 |
| Grant date | Feb 9, 2010 |
| Priority date | — |
| Expiry date | Feb 18, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2209/47
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and system for tracking variable conditions using radio frequency identification (RFID) are disclosed. In embodiments of the present invention, an RFID sensor tag is used to measure a condition. The condition can be any measurable condition such as location, temperature, humidity, pressure, time, date, inertial measurements, etc. Variable data representing the measured condition is read from the RFID sensor tag in order to track the measured condition. The variable data can be read from RFID sensor tags in addition to reading tag identification data from RFID tags, so that the variable data can be associated with tag identification data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.