| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a wireless tag communication device capable of retrieving a target wireless tag in a short time without losing sight of the wireless tag to be retrieved.SOLUTION: The wireless tag communication device for communicating with a wireless tag which is installed on an article and has a storage unit for storing identification information on the article, through an antenna having maximum directivity characteristics in a specific direction comprises: a wireless tag communication unit for performing communication with the wireless tag; a calculation unit for estimating a direction and an angle range in which the wireless tag exists on the basis of information on transmission output power from the wireless tag communication unit and an assumption reading distance to the wireless tag, and calculating and processing information showing a direction range of the tag; and a display unit for displaying a processing result of the calculation unit.</p> |
