Power management device and method thereof for managing power consumption of electronic device

• US 8,117,467 B2
• Filed: 10/27/2008
• Issued: 02/14/2012
• Est. Priority Date: 06/30/2008
• Status: Active Grant

• Current Assignee: Acer, Inc.
• Original Assignee: Acer, Inc.
• Inventors: Chang, Shih-Jie, Tsao, Ling-Fan, Hsu, Yin-Hsong, Liao, Shu-Chun
• Primary Examiner(s): TRAN, VINCENT HUY
• Application Number:
  US12/289,379
• Publication Number:
  US 20090327785A1
• Time in Patent Office: 1,205 Days
• Field of Search: 713/300, 713/320, 713/323, 713/324, 713/340
• US Class Current: 713/300
• CPC Class Codes: G06F 1/3203 Power management, i.e. event-based initiation of a power-saving mode

Abstract

A power management device and method thereof for managing power consumption of an electronic device are disclosed. The electronic device has at least one adjustable unit and each adjustable unit has a plurality of power statuses. The method includes the following steps: generating a collection table having a plurality of power status collections according to the plurality of power statuses; selecting a power status collection from the collection table; measuring the power consumption corresponding to the selected power status collection; and providing the measured power consumption to the user.

Claims

1. A power management method for managing power consumption of an electronic device, the electronic device including at least one adjustable unit and each adjustable unit having a plurality of power status, the method comprising:

detecting all power statuses of all adjustable units of the electronic device;

selecting one power status from each adjustable unit to form one corresponding power status collection;

generating a collection table including all power status collections corresponding to the adjustable units,

selecting a power status collection from the collection table;

measuring power consumption corresponding to the selected power status collection; and

providing the measured power consumption to the user.

2. The method according to claim 1, further comprising:

selecting another power status collection in response to the user;

measuring power consumption corresponding to the another power status collection;

comparing the power consumptions corresponding to the power status collections to obtain a comparison result; and

providing the comparison result to the user.

3. The method according to claim 1, wherein the step of measuring further comprises:

measuring the power consumption of the electronic device for predetermined times with a predetermined interval;

determining whether the predetermined times of measured results are stable; and

providing a stable result as the measured power consumption.

4. The method according to claim 3, wherein the step of determining further comprises:

determining the measured results as stable when the predetermined times of measured results are within a predetermined variation range.

5. A power management method for managing power consumption of an electronic device, the electronic device including at least one adjustable unit and each adjustable unit having a plurality of power status, the method comprising:

a) detecting all power statuses of all adjustable units of the electronic device;

b) selecting one power status from each adjustable unit to form one corresponding power status collection; and

c) generating a collection table including all power status collections corresponding to the adjustable units;

d) selecting a power status collection from the collection table;

e) measuring power consumption corresponding to the selected power status collection;

f) repeating step d) and e) until all power status collections are measured;

g) generating a consumption table; and

h) providing power consumption corresponding to a user-selected power status collection.

6. The method according to claim 5, further comprising:

i) a user adjusting from one power status collection to another power status collection;

j) querying power consumptions corresponding to each power status collections;

k) comparing the power consumptions corresponding to the power status collections to obtain a comparison result; and

l) providing the comparison result to the user.

7. The method according to claim 5, further comprising:

m) a user adjusting from one power status collection to another power status collection;

n) measuring power consumption corresponding to the another power status collection; and

o) updating the consumption table with the measured power consumption.

8. The method according to claim 5, wherein the step e) further comprises:

e1) measuring the power consumption of the electronic device for predetermined times with a predetermined interval;

e2) determining whether the predetermined times of measured results are stable; and

e3) providing a stable result as the measured power consumption.

9. The method according to claim 8, wherein the step e3) further comprises:

e4) determining the measured results as stable when the predetermined times of measured results are within a predetermined variation range.

10. An electronic device capable of managing power consumption, comprising:

at least one adjustable unit, each adjustable unit including a plurality of power statuses;

a measurement device for measuring the power consumption of the electronic device;

a management device for generating a collection table according to the plurality of power statuses, and selecting a power status collection from the collection table for measurement device measuring the corresponding power consumption to obtain a consumption table according to the measured power consumption; and

a storage device for storing the collection table and the consumption table;

wherein, in response to a user adjusting the power status collection to another power status collection, the management device queries the power consumptions corresponding to each power status collections and providing the comparison result between power consumptions to the user.

11. The device according to claim 10, wherein, in response to a user adjusting from one power status collection to another power status collection, the management device instructs the measurement device to measure power consumption corresponding to the another power status collection, and updates the consumption table with the measured power consumption.

12. The device according to claim 10, wherein the management device detects all power statuses of all adjustable units of the electronic device, selects one power status from each adjustable unit to form one corresponding power status collection, and generates the collection table including all power status collections corresponding to the adjustable units.

13. The device according to claim 10, further comprising an user interface for receiving an input from the user and providing information to the user.

14. The device according to claim 10, wherein the measurement device measures the power consumption of the electronic device for predetermined times with a predetermined interval and provides a stable result as the measured power consumption.

15. The device according to claim 14, wherein the measurement device determines the measured results as stable when the predetermined times of measured results are within a predetermined variation range.