| 摘要 |
The invention refers to a device and a method for providing at least one service to at least one of a number of users who are connected to the device. The device includes a portable unit (1) for each user and at least one central unit (2, 2') having a computer (13, 13'). Furthermore, the device includes first means (15), which are arranged to enable communication from at least one producer (14) of said service to said central unit, second means (5) which are arranged to determine the geographic position of essentially each portable unit (1), and third means (3) which are arranged to enable communication in both directions between each portable unit and said central unit via a wireless communication network. The central unit (2, 2') is arranged to provide said service to the portable units fulfilling a certain criterion with respect to said geographic position. |
