Method and system for energy management of an offender monitor

摘要

A portable device, for example an offender monitor, can utilize a GPS receiver or other location detector to provide locational information for the device. The portable device can communicate over a cellular network, for example using a radio to transmit location readings over the network. The location detector and the radio can draw power from an onboard battery. The portable device can operate in at least two modes. When charge of the battery drops below a threshold, the device can switch from the first mode of operation to the second mode to conserve power and avoid fully depleting the battery.

主权项

1. An offender monitor comprising:
a battery; a location detector; a radio; a processor that is powered by the battery and that comprises:
a connection to the location detector;a connection to the radio; andmemory; and processor executable instructions stored in the memory to perform the steps of:
comparing level of the battery to a threshold;if the level of the battery is above the threshold, then acquiring location data at a first rate; andif the level of the battery is below the threshold, then acquiring location data at a second rate that is less than the first rate,wherein acquiring location data at a second rate that is less than the first rate comprises drawing power from a reserve portion of the battery.