| 摘要 |
PROBLEM TO BE SOLVED: To provide an entrance and exit management system capable of detecting a contract among a plurality of users.SOLUTION: The entrance and exit management system includes: an antenna 1 for transmitting a detection radio wave; tags 11 for transmitting information including an ID when receiving the detection radio wave from the antenna 1; a receiver 2 for receiving the information from the tags 11; an electric lock controller 3 for unlocking an electric lock 5 on the basis of the ID included in the information received by the receiver 2; and a storage part 7 for storing the information received by the receiver 2. A first tag 11a and a second tag 11b among the tags 11 have a human body communication function for communicating between each other via a human body, and at least either the first tag 11a or the second tag 11b transmits communication record including the ID of the first tag 11a and the ID of the second tag 11b when communication is performed between the first tag 11a and the second tag 11b, and the storage part 7 stores the communication record.SELECTED DRAWING: Figure 3 |
