Being the portable information terminal in the embarkation management system which is formed the embarkation management server who detects the information of transmission original position

摘要

PROBLEM TO BE SOLVED: To provide a mobile terminal device capable of detecting a passenger even when the passenger is outside the detection area of a tag reader.;SOLUTION: In the mobile terminal device 20, a server transmitting/receiving part 20d receives a tag ID and location information of a radio tag 30 from a passenger control server 10. A wireless signal receiving part 20b receives a radio signal transmitted from the radio tag 30. A display part 20c displays the tag ID and the location information received by the server transmitting/receiving part 20d. When a radio signal is received by the wireless signal receiving part 20b, location information of the radio tag 30 based on a value of the radio field strength of the radio signal, and the tag ID contained in the radio signal are displayed on the screen.;COPYRIGHT: (C)2006,JPO&NCIPI