METHOD, APPARATUS AND COMPUTER-READABLE MEDIUM FOR DEVICE CONTROL

• US 20180062408A1
• Filed: 08/18/2017
• Published: 03/01/2018
• Est. Priority Date: 08/25/2016
• Status: Active Grant

• Current Assignee: Beijing Xiaomi Mobile Software Co., Ltd. (Xiaomi Corp.)
• Original Assignee: Beijing Xiaomi Mobile Software Co., Ltd. (Xiaomi Corp.)
• Inventors: LIU, Dongxu, HUANG, Xiaobo, FENG, Huanyuan
• Granted Patent: US 10,498,153 B2
• Time in Patent Office: Days
• CPC Class Codes: G05B 15/02 electric
• CPC Class Codes: G06F 1/30 Means for acting in the event of power-supply failure or interruption, e.g. power-supply fluctuations for resetting only G06F1/24
• CPC Class Codes: G06F 1/3296 by lowering the supply or operating voltage
• CPC Class Codes: H02J 7/0048 Detection of remaining charge capacity or state of charge [SOC]
• CPC Class Codes: H02J 7/0063 with circuits adapted for supplying loads from the battery
• CPC Class Codes: H02J 7/00712 the cycle being controlled or terminated in response to electric parameters
• CPC Class Codes: Y02D 10/00 Energy efficient computing, e.g. low power processors, power management or thermal management

Abstract

The disclosure relates to a method, an apparatus and a computer-readable medium for device control. The method includes obtaining remaining battery energy, an operating power and a timing period for the device and determining a power change curve of the device when the remaining battery energy is insufficient to enable the device to operate with the operating power for the timing period. The method also includes adjusting the operating power of the device according to the power change curve of the device to enable the device to operate for the timing period.

Claims

1. A method for device control, comprising:

obtaining remaining battery energy, an operating power and a timing period for the device;

determining a power change curve of the device based on the remaining battery energy, the operating power and the timing period when the remaining battery energy is insufficient to enable the device to operate with the operating power for the timing period; and

adjusting the operating power of the device according to the power change curve of the device to enable the device to operate for the timing period.

2. The method of claim 1, wherein determining the power change curve of the device based on the remaining battery energy, the operating power and the timing period comprises:

partitioning the timing period evenly into a plurality of predetermined time intervals, at a start of each of the predetermined time intervals, reducing the operating power of the device by a predetermined value, and generating a first power change curve based on an operating power value within each of the predetermined time intervals; and

determining the first power change curve as the power change curve of the device when the energy required for operating for the timing period, which is calculated according to the first power change curve, is equal to or less than the remaining battery energy.

3. The method of claim 2, wherein the predetermined value is determined by determining a difference between the operating power and a minimum operating power of the device and evenly partitioning the difference by the number of the predetermined time intervals.

4. The method of claim 3, wherein determining the power change curve of the device further comprises:

adjusting the predetermined value to increase, among the predetermined time intervals, the number of predetermined time intervals during which the device is operating with the minimum operating power of the device, and generating a second power change curve based on the operating power value within each of the predetermined time intervals when the energy required for operating for the timing period, which is calculated according to the first power change curve, is greater than the remaining battery energy; and

determining the second power change curve as the power change curve of the device when the energy required for operating for the timing period, which is calculated according to the second power change curve, is equal to or less than the remaining battery energy.

5. The method of claim 4, wherein determining the power change curve of the device further comprises:

when the energy required for operating for the timing period, which is calculated according to the second power change curve, is greater than the remaining battery energy, repeatedly adjusting the predetermined value to gradually increase, among the predetermined time intervals, the number of predetermined time intervals during which the device is operating with the minimum operating power of the device, and then regenerating the second power change curve based on the operating power value within each of the predetermined time intervals until energy required for operating for the timing period, which is calculated according to the regenerated second power change curve, is equal to or less than the remaining battery energy; and

determining the regenerated second power change curve as the power change curve of the device.

6. The method of claim 4, wherein adjusting the predetermined value comprises:

partitioning the difference evenly by a number of predetermined time intervals, among the predetermined time intervals, during which the device is not operating with the minimum operating power of the device to redetermine the predetermined value.

7. The method of claim 1, wherein, when the remaining battery energy is insufficient to enable the device to operate with the operating power for the timing period, the method comprises:

determining that the remaining battery energy is insufficient to enable the device to operate with the operating power for the timing period when a period of time resulted from the remaining battery energy divided by the operating power is less than the timing period.

8. An apparatus for device control, comprising:

a processor; and

a memory used to store processor-executable instructions to be executable by the processor;

wherein the processor is configured to;

obtain remaining battery energy, an operating power and a timing period for the device;

determine a power change curve of the device based on the remaining battery energy, the operating power and the timing period when the remaining battery energy is insufficient to enable the device to operate with the operating power for the timing period; and

adjust the operating power of the device according to the power change curve of the device to enable the device to operate for the timing period.

9. The apparatus of claim 8, wherein the processor is further configured to:

partition the timing period evenly into a plurality of predetermined time intervals, at a start of each of the predetermined time intervals, reduce the operating power of the device by a predetermined value, and generate a first power change curve based on an operating power value within each of the predetermined time intervals; and

determine the first power change curve as the power change curve of the device when the energy required for operating for the timing period, which is calculated according to the first power change curve, is equal to or less than the remaining battery energy.

10. The apparatus of claim 9, wherein the processor is configured to determine the predetermined value by determining a difference between the operating power and a minimum operating power of the device and evenly partition the difference by a number of the predetermined time intervals.

11. The apparatus of claim 10, wherein the processor is further configured to:

adjust the predetermined value to increase, among the predetermined time intervals, the number of predetermined time intervals during which the device is operating with the minimum operating power of the device, and generate a second power change curve based on the operating power value within each of the predetermined time intervals when the energy required for operating for the timing period, which is calculated according to the first power change curve, is greater than the remaining battery energy; and

determine the second power change curve as the power change curve of the device when the energy required for operating for the timing period, which is calculated according to the second power change curve, is equal to or less than the remaining battery energy.

12. The apparatus of claim 11, wherein the processor is further configured to:

when the energy required for operating for the timing period, which is calculated according to the second power change curve, is greater than the remaining battery energy, repeatedly adjust the predetermined value to gradually increase, among the predetermined time intervals, the number of predetermined time intervals during which the device is operating with the minimum operating power of the device, and then regenerate the second power change curve based on the operating power value within each of the predetermined time intervals until the energy required for operating for the timing period, which is calculated according to the regenerated second power change curve, is equal to or less than the remaining battery energy; and

determine the regenerated second power change curve as the power change curve of the device.

13. The apparatus of claim 11, wherein the processor is configured to partition the difference evenly by the number of predetermined time intervals, among the predetermined time intervals, during which the device is not operating with the minimum operating power of the device to redetermine the predetermined value.

14. The apparatus of claim 8, wherein the processor is further configured to determine that the remaining battery energy is insufficient to enable the device to operate with the operating power for the timing period when a period of time resulted from the remaining battery energy divided by the operating power is less than the timing period.

15. A non-transitory computer-readable storage medium having stored therein instructions that, when executed by a processor, cause the processor to perform:

obtaining remaining battery energy, an operating power and a timing period for the device;

determining a power change curve of the device based on the remaining battery energy, the operating power and the timing period when the remaining battery energy is insufficient to enable the device to operate with the operating power for the timing period; and

adjusting the operating power of the device according to the power change curve of the device to enable the device to operate for the timing period.