| 摘要 |
<p>An activity monitoring device according to the present invention comprises: a target device unit to collect data information according to power consumption of a customer; and a management device unit to receive the data information from the target device unit, generate reference data information, compare the reference data information with the received data information, and determine activity of a target according to the result of the comparison, wherein the management device unit generates warning information when a difference between power consumption of the data information and power consumption of the reference data information is greater than a predetermined tolerance.</p> |
