| 摘要 |
A method of tracking an object (1) tagged with a radio frequency identification tag (2) having an identification code using a network of readers (3) is described. A reader (3) interrogates the tag (2) by transmitting its identification code. In response to receiving its identification code, the tag identifies itself to the reader. Otherwise, it does not identify itself. The method comprises identifying an expected location of the object and directing one or more selected readers according to the expected location to interrogate the tag using its identification code. |
