# US 12,224,618 B2 · Backup power supply control method, apparatus, and system

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- Number: US 12,224,618 B2
- Document ID: US12224618B2
- Status: Granted
- Kind: B2
- Application number: 17/651,853
- Filed: 2022-02-21
- Published: 2022-06-09
- Granted: 2025-02-11
- Earliest claimed: 2019-08-22
- Assignees: Huawei Technologies Co., Ltd.
- Applicants: Huawei Technologies Co., Ltd.
- Inventors: Bing Luo; Liangren Fang; Guoqiang Yao; Yundong Wan; Jinfeng Li
- Web page: https://patentgrep.com/patent/US12224618B2

## CPC

- H02J 9/04: in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J 7/40: characterised by the exchange of charge or discharge related data
- H02J 7/82: Control of state of charge [SOC]
- H02J 7/855: {with circuits adapted for supplying loads from the battery}
- H02J 9/061: {for DC powered loads}
- Y02B 70/30: Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
- Y04S 20/20: End-user application control systems
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y04S: SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS

## Abstract

This application relates to the field of communications technologies, and discloses a backup power supply control method, to obtain target power supplying duration of a battery, and determine average power consumption of a communication station (101) within a time period corresponding to the target power supplying duration. Further, a state of charge of the battery is obtained, and actual power supplying duration for the battery to supply power to the communication station (101) is determined based on the state of charge of the battery and the average power consumption. Therefore, an operation mode of a communication device in the communication station (101) may be adjusted, to reduce the average power consumption of the communication station (101) within the time period corresponding to the target power supplying duration.

## Claims

### Claim 1

A backup power supply control method comprising:
obtaining a target power supplying duration of a battery, and determining an average power consumption of a communication station within a time period corresponding to the target power supplying duration;
obtaining a state of charge of the battery, and determining, based on the state of charge of the battery and the average power consumption, an actual power supplying duration for the battery to supply a power to the communication station; and
in response to the actual power supplying duration being less than the target power supplying duration, adjusting an operation mode of a communication device in the communication station, to reduce the average power consumption, such that the actual power supplying duration for the battery to supply the power to the communication station is enabled to be greater than or equal to the target power supplying duration,
wherein the determining the average power consumption of the communication station within the time period corresponding to the target power supplying duration comprises:
obtaining historical power consumption data of the communication station within a first preset historical time period, and obtaining a current power consumption of the communication station;
determining a total power consumption of the communication station within a first historical time period based on the historical power consumption data, wherein a start point of time of the first historical time period is a first historical point of time, and the first historical time period has a duration equal to the target power supplying duration; and
determining the average power consumption based on the total power consumption and a relationship between a first power consumption and the current power consumption.

### Claim 2 (depends on 1)

The method according to claim 1, wherein the determining the average power consumption of the communication station within the time period corresponding to the target power supplying duration further comprises:
matching the current power consumption of the communication station with the historical power consumption data, and determining, based on the historical power consumption data, the first power consumption corresponding to the current power consumption, wherein the first power consumption is a power consumption corresponding to the communication station at the first historical point of time within the first preset historical time period.

### Claim 3 (depends on 1)

The method according to claim 1, wherein the obtaining the target power supplying duration of the battery comprises:
obtaining the target power supplying duration entered by a user through a human-computer interaction interface.

### Claim 4 (depends on 1)

The method according to claim 1, wherein the obtaining the target power supplying duration of the battery comprises:
obtaining mains outage data of the communication station within a second preset historical time period;
determining, based on the mains outage data, a mains average daily outage duration of the communication station within the second preset historical time period, and determining, based on the mains outage data, a mains maximum daily outage duration of the communication station within the second preset historical time period; and
determining the target power supplying duration based on the mains average daily outage duration and the mains maximum daily outage duration, wherein the target power supplying duration is greater than the average daily outage duration and less than the maximum daily outage duration.

### Claim 5 (depends on 1)

The method according to claim 1, wherein the adjusting the operation mode of the communication device in the communication station, to reduce the average power consumption comprises performing at least one of:
controlling the communication device in the communication station to be turned off, or controlling a power of the communication device in the communication station to be reduced.

### Claim 6

A backup power supply control system comprising:
a first controller configured to:
obtain a target power supplying duration of a battery, and determine an average power consumption of a communication station within a time period corresponding to the target power supplying duration;
obtain a state of charge of the battery, and determine, based on the state of charge of the battery and the average power consumption, an actual power supplying duration for the battery to supply a power to the communication station;
in response to the actual power supplying duration being less than the target power supplying duration, send an energy saving instruction to a second controller; and
the second controller configured to adjust an operation mode of a communication device in the communication station according to the energy saving instruction, to reduce the average power consumption, such that the actual power supplying duration for the battery to supply the power to the communication station is enabled to be greater than or equal to the target power supplying duration,
wherein the first controller is configured to:
obtain historical power consumption data of the communication station within a first preset historical time period, and obtain a current power consumption of the communication station;
determine a total power consumption of the communication station within a first historical time period based on the historical power consumption data, wherein a first historical point of time is a start point of time of the first historical time period, and the first historical time period has a duration equal to the target power supplying duration; and
determine the average power consumption based on the total power consumption and a relationship between a first power consumption and the current power consumption.

### Claim 7 (depends on 6)

The system according to claim 6, wherein the first controller is further configured to:
match the current power consumption of the communication station with the historical power consumption data, and determine, based on the historical power consumption data, the first power consumption corresponding to the current power consumption, wherein the first power consumption is a power consumption corresponding to the communication station at the first historical point of time within the first preset historical time period.

### Claim 8 (depends on 6)

The system according to claim 6, wherein the first controller is configured to:
obtain the target power supplying duration entered by a user through a human-computer interaction interface.

### Claim 9 (depends on 6)

The system according to claim 6, wherein the first controller is configured to:
obtain mains outage data of the communication station within a second preset historical time period;
determine, based on the mains outage data, a mains average daily outage duration of the communication station within the second preset historical time period, and determining, based on the mains outage data, a mains maximum daily outage duration of the communication station within the second preset historical time period; and
determine the target power supplying duration based on the mains average daily outage duration and the mains maximum daily outage duration, wherein the target power supplying duration is greater than the average daily outage duration and less than the maximum daily outage duration.

### Claim 10 (depends on 6)

The system according to claim 6, wherein the energy saving instruction carries a target energy saving level; and
wherein the second controller is configured to:
determine, based on a predetermined mapping relationship between an energy saving level and an energy saving policy, a target energy saving policy corresponding to the target energy saving level; and
adjust the operation mode of the communication device in the communication station according to the target energy saving policy, to reduce the average power consumption.

### Claim 11 (depends on 6)

The system according to claim 6, wherein the second controller is configured to:
control the communication device in the communication station to be turned off, and/or control a power of the communication device in the communication station to be reduced.

### Claim 12

A backup power supply control apparatus comprising:
a memory and at least one processor, wherein the memory is configured to store a program, and wherein the at least one processor is configured to invoke the program in the memory, wherein the program instructs the at least one processor to:
obtain a target power supplying duration of a battery;
determine an average power consumption of a communication station within a time period corresponding to the target power supplying duration;
obtain a state of charge of the battery;
determine, based on the state of charge of the battery and the average power consumption, an actual power supplying duration for the battery to supply a power to the communication station; and
in response to the actual power supplying duration being less than the target power supplying duration, adjust an operation mode of a communication device in the communication station, to reduce the average power consumption, wherein the actual power supplying duration for the battery to supply the power to the communication station is enabled to be greater than or equal to the target power supplying duration,
wherein the program instructs the at least one processor to:
obtain historical power consumption data of the communication station within a first preset historical time period, and obtain a current power consumption of the communication station;
determine a total power consumption of the communication station within a first historical time period based on the historical power consumption data, wherein a first historical point of time is a start point of time of the first historical time period, and the first historical time period has a duration equal to the target power supplying duration; and
determine the average power consumption based on the total power consumption and a relationship between a first power consumption and the current power consumption.

### Claim 13 (depends on 12)

The apparatus according to claim 12, wherein the program further instructs the at least one processor to:
match the current power consumption of the communication station with the historical power consumption data, and determine, based on the historical power consumption data, the first power consumption corresponding to the current power consumption, wherein the first power consumption is a power consumption corresponding to the communication station at the first historical point of time within the first preset historical time period.

### Claim 14 (depends on 12)

The apparatus according to claim 12, wherein the program instructs the at least one processor to:
obtain the target power supplying duration entered by a user through a human-computer interaction interface.

### Claim 15 (depends on 12)

The apparatus according to claim 12, wherein the program instructs the at least one processor to:
obtain mains outage data of the communication station within a second preset historical time period;
determine, based on the mains outage data, a mains average daily outage duration of the communication station within the second preset historical time period, and determining, based on the mains outage data, a mains maximum daily outage duration of the communication station within the second preset historical time period; and
determine the target power supplying duration based on the mains average daily outage duration and the mains maximum daily outage duration, wherein the target power supplying duration is greater than the average daily outage duration and less than the maximum daily outage duration.

### Claim 16 (depends on 12)

The apparatus according to claim 12, wherein the program instructs the at least one processor to:
control the communication device in the communication station to be turned off, and/or control a power of the communication device in the communication station to be reduced.