| 摘要 |
PROBLEM TO BE SOLVED: To provide a device for loss prevention and quick search of an article.SOLUTION: A device comprises a slave of an RFID tag function having unique identification information in an internal tag memory, and a handheld type master which has an RFID reader function and can vary recognition distance and recognition width for enabling the slave to be recognized. When deviation is made from a prescribed distance between a user and an article, a warning, such as an alarm and article guidance is outputted so that the user can quickly search for the article the user himself/herself leaves behind in a house or the like as well as that the user can prevent the article from being lost.SELECTED DRAWING: Figure 1 |
