MOVING BODY AND COMMUNICATION METHOD

摘要

PROBLEM TO BE SOLVED: To ensure security as much as possible when a mobile terminal of a worker on a moving body communicates with the outside of the moving body. SOLUTION: A PDA 25 performs communication only within driver's cabins 18a and 18b. Data encryption level in wireless communication between the PDA 25 and an indoor access point 21 is higher than that in wireless communication between an outdoor wireless LAN (local area network) unit 23 and an access point 11. Therefore, security of communication can be ensured as much as possible in the wireless LAN system, even when a mobile terminal with a low communication security such as the PDA 25 is used. COPYRIGHT: (C)2010,JPO&INPIT