| 摘要 |
This RFID reading device has a response requesting means (20) for outputting a response request signal to a wireless tag, a response receiving means (24) for extracting an ID of the wireless tag and detecting a signal collision of a response from the wireless tag on the basis of a response signal outputted by the wireless tag in response to the response request signal, a read result acquiring means (25) for acquiring a read tag count indicating the number of wireless tags for which an ID was successfully read, a collision occurrence status acquiring means (26) for counting a number of time slots in which a signal collision occurred and computing a number of collisions, and a read result complementing means (27) for estimating the number of readable wireless tags on the basis of the read tag count and the number of collisions. |
