PORTABLE ELECTRONIC DEVICE, SYSTEM AND METHOD FOR REPORTING ON ALARM CONDITIONS AND FOR DISPLAYING ADVERTISEMENT MESSAGES

摘要

A portage electronic device has a tracking system generating position data for the device and monitoring system comparing the position data with stored configuring data to determine whether an alarm condition exists. A wireless communications system transmits an alarm message to a control system or to a separate monitoring station such as a mobile telephone. The configuring data may be entered into the device using a user interface of the device by a guardian having security access. Advertising messages may be downloaded to the device and stored for subsequent display in accordance with a schedule. Use of the device is logged in terms of the number of advertising messages displayed and a remote control unit awards credits for rewarding the subscriber such as by free credits for prepaid mobile telephone communications. The device may be a hand held entertainments device for playing computer games or may comprise a mobile telephone.