Patent ID: 8737949
Filing Date: 2014-05-27
Classification: G08B,H01M,H04M,H04W,Y02D,Y02E

Abstract:
1. A method for operating a mobile battery-operated personal emergency signal device comprising: upon a determination that the personal emergency signal device is switched on or removed from a battery charging device, a central device initiating a check of a battery powering the personal emergency signal device to check a charge status of the battery, the check being performed by the central device, the central device being communicatively connected to the personal emergency signal device, the check of the battery comprising: the central device communicating with the personal emergency signal device to receive information relating to the charge status of the battery and comparing the charge status of the battery to a threshold value, the threshold value defining a minimum amount of required operating time for the personal emergency signal device; upon a determination by the central device that the charge status of the battery exceeds the threshold value such that the battery is charged sufficiently to power the personal emergency signal device for at least the minimum amount of required operating time, the central device communicating with the personal emergency signal device to permit the personal emergency signal device to operate; and upon a determination by the central device that the charge status of the battery is below the threshold value such that the battery is not charged sufficiently to power the personal emergency signal device for at least the minimum amount of required operating time, the central device communicating with the personal emergency signal device such that the central device prevents the personal emergency signal device from operating.