WO2019210678A1

WO2019210678A1 - Battery power consumption control method and apparatus, and unmanned aerial vehicle

Info

Publication number: WO2019210678A1
Application number: PCT/CN2018/116711
Authority: WO
Inventors: 秦威
Original assignee: 深圳市道通智能航空技术有限公司
Priority date: 2018-05-04
Filing date: 2018-11-21
Publication date: 2019-11-07
Also published as: CN108627773B; CN108627773A

Abstract

Disclosed are a battery power consumption control method and apparatus, and an unmanned aerial vehicle. The battery power consumption control method comprises: determining that a battery is in a state without a charging current, a discharging current or communication (S110); collecting an electrical performance parameter of the battery, wherein the electrical performance parameter comprises the lowest voltage of a cell of the battery (S120); determining, according to the electrical performance parameter, whether the lowest voltage of the cell is less than or equal to a first voltage threshold value (S130); and if so, controlling a coulometer (20) and a microprocessor (30) so that same both enter a deep sleep mode (S140). By using dual control of the coulometer (20) and the microprocessor (30), a battery can realize ultra-low power consumption when satisfying certain conditions, thereby protecting the battery from over-discharge to the greatest extent.

Description

Battery power control method, device and unmanned aerial vehicle

The application claims the priority of the Chinese patent application filed on May 4, 2018, the application number is 201101,435, 317,181, and the application name is "battery power consumption control method, device and unmanned aerial vehicle", the entire contents of which are incorporated herein by reference. in.

[Technical Field]

The present invention relates to the field of battery management technologies, and in particular, to a battery power consumption control method, apparatus, and an unmanned aerial vehicle.

【Background technique】

Unmanned aerial vehicles are a kind of products with high safety requirements. As the core of unmanned aerial vehicles safety, batteries are particularly important in the safety design of unmanned aerial vehicles. The battery stored for a long time will enter a very low voltage state due to its own self-consumption. Once the battery voltage is lower than a threshold (such as 1V), it may cause permanent damage to the battery, causing property damage to the user. . Therefore, we need to take some control strategies to reduce the rate of self-discharge of the battery.

However, in the existing battery power control scheme, only some of the functional modules that control the battery are stopped, and the microprocessor is still working normally. This control mode makes the overall power consumption of the battery still high.

[Summary of the Invention]

In order to solve the above technical problem, an embodiment of the present invention provides a battery power consumption control method, apparatus, and an unmanned aerial vehicle that can achieve low power consumption.

To solve the above technical problem, the embodiment of the present invention provides the following technical solutions:

A battery power consumption control method, the battery comprising a fuel gauge and a microprocessor, the method comprising:

Determining that the battery is in a state of no charging current, no discharging current, and no communication;

Collecting electrical performance parameters of the battery, the electrical performance parameters including a battery minimum voltage of the battery;

Determining, according to the electrical performance parameter, whether the minimum voltage of the battery cell is less than or equal to a first voltage threshold, and if so,

Both the fuel gauge and the microprocessor are controlled to enter a deep sleep mode.

In one embodiment, the determining that the battery is in a state of no charging current, no discharging current, and no communication is specifically:

Determining that the battery is in a state of no charging current, no discharging current, and no communication is longer than or equal to a first preset duration.

In one embodiment, the determining whether the minimum voltage of the battery is less than or equal to the first voltage threshold according to the electrical performance parameter, and when the determination result is no, further comprising:

Determining that the battery is in a state of no charging current, no discharging current, and no communication, and the duration of the battery is greater than or equal to a second preset duration;

Determining whether the minimum voltage of the cell is less than or equal to a second voltage threshold, and if so,

Controlling both the fuel gauge and the microprocessor to enter a deep sleep mode;

The second preset duration is greater than the first preset duration.

In one embodiment, the electrical performance parameter further includes a cell differential pressure, and before the controlling the coulometer and the microprocessor enter the deep sleep mode, the method further includes:

Determining, according to the electrical performance parameter, the cell voltage difference is less than a third voltage threshold.

In one embodiment, after the controlling the fuel gauge and the microprocessor both enter a deep sleep mode, the method further includes:

Receiving an external wake-up command;

The battery is awake according to the wake-up command to enter a discharging state or a charging state.

In one embodiment, the first voltage threshold is 3.6 volts, the second voltage threshold is 3.9 volts, and the third voltage threshold is 30 millivolts.

The embodiment of the invention further provides the following technical solutions:

A battery power consumption control device, the battery comprising a fuel gauge and a microprocessor, the device comprising:

a status confirmation module, configured to determine that the battery is in a state of no charging current, no discharging current, and no communication;

An electrical performance parameter acquisition module, configured to collect electrical performance parameters of the battery, where the electrical performance parameter includes a minimum voltage of the battery cell;

a first determining module, configured to determine, according to the electrical performance parameter, whether the minimum voltage of the battery cell is less than or equal to a first voltage threshold;

And a control module, configured to control the fuel gauge and the microprocessor to enter a deep sleep mode when the determination result of the first determining module is YES.

In one embodiment, the status confirmation module is specifically configured to determine that the battery is in a state of no charging current, no discharging current, and no communication for a duration greater than or equal to a first preset duration.

In one embodiment, the apparatus further includes a second determining module;

When the determination result of the first determining module is negative, the status confirming module is further configured to determine that the battery is in a state of no charging current, no discharging current, and no communication, and the duration is greater than or equal to the second preset. duration;

The second determining module is configured to further determine whether the minimum voltage of the battery cell is less than or equal to a second voltage threshold, and if so,

Controlling, by the control module, the fuel gauge and the microprocessor to enter a deep sleep mode;

The second preset duration is greater than the first preset duration.

In one embodiment, the electrical performance parameter further includes a cell differential pressure, and the state confirmation module is further configured to determine that the cell differential pressure is less than a third voltage threshold according to the electrical performance parameter.

In one embodiment, the method further includes a receiving module and a wake-up module;

The receiving module is configured to receive an external wake-up instruction;

The wake-up module is configured to wake up the battery to enter a discharging state or a charging state according to the wake-up instruction.

An unmanned aerial vehicle includes a memory and a processor, the memory storing a program that, when read by the processor, implements the above-described unmanned aerial vehicle battery power consumption control method.

Compared with the prior art, the battery power consumption control method of the embodiment of the present invention collects electrical performance parameters of the battery, and determines that the minimum voltage of the battery is less than or equal to the first voltage threshold according to the electrical performance parameter. Both the fuel gauge and the microprocessor are controlled to enter a deep sleep mode. This is equivalent to the dual control of the fuel gauge and the microprocessor, which enables the battery to achieve ultra-low power consumption under certain conditions, thereby maximally protecting the battery from overdischarge.

[Description of the Drawings]

The one or more embodiments are exemplified by the accompanying drawings in the accompanying drawings, and FIG. The figures in the drawings do not constitute a scale limitation unless otherwise stated.

1 is a schematic diagram of a battery application environment according to an embodiment of the present invention;

2 is a schematic flowchart of a battery power consumption control method according to a first embodiment of the present invention;

3 is a schematic partial flow chart of a method for controlling power consumption of a battery according to a second embodiment of the present invention;

4 is a schematic partial flow chart of a method for controlling power consumption of a battery according to a third embodiment of the present invention;

5 is a schematic partial flow chart of a method for controlling power consumption of a battery according to a fourth embodiment of the present invention;

FIG. 6 is a schematic flowchart of a battery power consumption control method in a specific scenario according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of a battery power consumption control apparatus according to a fifth embodiment of the present invention; FIG.

FIG. 8 is a block diagram showing the hardware structure of an unmanned aerial vehicle according to a sixth embodiment of the present invention.

【detailed description】

In order to facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the steps illustrated in the flowchart of the figures may be performed in a computer system such as a set of computer executable instructions. Also, although logical sequences are shown in the flowcharts, in some cases the steps shown or described may be performed in a different order than the ones described herein.

Unless otherwise defined, all technical and scientific terms used in the specification are the same meaning The terminology used in the description of the present invention is for the purpose of describing particular embodiments and is not intended to limit the invention. The term "and/or" used in this specification includes any and all combinations of one or more of the associated listed items.

Further, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

FIG. 1 is a schematic diagram of a battery application environment according to an embodiment of the present invention. As shown in FIG. 1, the battery includes a battery pack 10, a fuel gauge 20, and a microprocessor 30.

The battery pack 10 is composed of one or more batteries, which are arranged in any form to form a battery pack for supplying a DC power source to an electrical device such as an electric motor. The battery pack 10 can have a corresponding capacity, volume size or package form according to actual conditions. The battery pack 10 can be discharged or charged under controlled conditions to simulate normal operating conditions.

The fuel gauge 20 can be any type or brand of fuel gauge system or chip that calculates the current state of charge of the battery pack 10 by collecting corresponding data. The fuel gauge 20 can be run with one or more suitable software programs, record data and perform calculations based on the data.

A necessary electrical connection is established between the fuel gauge 20 and the battery pack 10 (the electrical connection may be an indirect connection formed by a related electrical performance parameter acquisition circuit, such as a current sampling circuit, a voltage sampling circuit, a temperature sampling circuit, etc. The fuel gauge 20 collects and acquires the data of the battery pack 10 through these electrical connections to determine the current electrical quantity, current, voltage and other electrical performance parameters of the battery pack 10. The fuel gauge 20 has modes of discharging, charging, sleeping, deep sleep, and the like. Among them, as long as the battery has no charging current and no discharging current, the fuel gauge 20 will automatically enter the sleep mode. At this time, other modules of the battery (such as the microprocessor 30) are still in the normal power supply state, and the recovery speed of this mode is fast. The charge meter 20 enters the deep sleep mode and requires the microprocessor 30 to send instructions to it.

The microprocessor 30 is in communication connection with the fuel gauge 20, and the microprocessor 30 can control the mode of the fuel gauge 20 based on the relevant electrical performance parameters. If the microprocessor 30 determines that the battery has no charging current, no discharging current, and no communication with the outside according to the electrical performance parameter transmitted by the fuel gauge 20, the Shutdown command is issued to the fuel gauge 20 to control the fuel gauge 20 Entering deep sleep mode, microprocessor 30 will then enter deep sleep mode.

In the present application, the deep sleep mode of the fuel gauge 20 means that the microprocessor 30 issues a Shutdown command to the fuel gauge 20, and the power supply of the fuel gauge 20 is cut off; the deep sleep mode of the microprocessor 30 means that the microprocessor 30 only retains Wake up the program and all other functions are closed. When both the fuel gauge 20 and the microprocessor 30 enter a deep sleep mode, it indicates that the battery will automatically cut off power to all of the functional modules, including the microprocessor 30, which has a slower recovery rate than the (sleep mode).

The battery of the present invention can supply power to different electronic devices, and there is no limitation on the application scenario of the battery. Various embodiments are described in detail below primarily in the context of battery application to an unmanned aerial vehicle.

Embodiment 1:

2 is a schematic flowchart of a battery power consumption control method according to an embodiment of the present invention. The technical solution in the first embodiment is described together with FIG. 1 . As shown in FIG. 2, the battery power control method includes:

Step S110: determining that the battery is in a state of no charging current, no discharging current, and no communication.

In one embodiment, considering that the battery is operating normally (eg, normal charging, normal discharging, or normal communication), if the fuel gauge 20 is controlled to enter deep sleep mode, serious consequences may result (eg, the fuel gauge while the UAV is flying) 20 entering the deep sleep mode will cause the consequences of the crash), so it is necessary to determine that the battery is in a state of no charging current, no discharge current, no communication. The charging current or discharge current of the battery can be collected by the current sampling circuit. It should be noted that the determination of the presence or absence of the charging current and the discharging current in the present embodiment is based on a relative value, and is not an absolute currentless state. For example, if we set a relative value of 50 mA, then when the charging current is less than 50 mA, it is determined that it is in a no-charge current state; similarly, when the discharge current is less than 50 mA, it is determined that it is a non-discharge current state. .

In one embodiment, it is also possible to count the length of time that the battery is in a state of no charging current, no discharging current, and no communication. Considering that the UAV may need to be used at any time, if the direct entry into the deep sleep mode affects the speed of the battery recovery operation, step S110 may also be: determining that the battery is in no charging current, no discharge current, no communication. The duration of the state is greater than or equal to the first preset duration. The first preset duration can be artificially set to reasonable data, such as 24 hours, 12 hours, etc., which is not strictly limited herein.

Step S120: Collecting electrical performance parameters of the battery, where the electrical performance parameters include a minimum voltage of the battery.

In the present embodiment, the lowest voltage of the cell that appears is the voltage value of the cell with the lowest voltage in the cell group 10. The acquisition of the electrical performance parameter is generally completed by a corresponding sampling circuit, such as by a voltage sampling circuit. The voltage value in the cell can be collected.

Step S130: Determine, according to the electrical performance parameter, whether the minimum voltage of the battery cell is less than or equal to a first voltage threshold.

If the result of the determination in step S130 is YES, step S140 is performed.

Step S140: Control the fuel gauge and the microprocessor to enter a deep sleep mode.

Under normal circumstances, as long as it is determined that the voltage value of the cell with the lowest voltage in the cell group 10 is less than or equal to the first voltage threshold, the microprocessor 30 issues a Shutdown command to the fuel gauge 20 to make the fuel gauge 20 enter the depth. In sleep mode, microprocessor 30 then turns off its internal function program, leaving only the wake-up program to monitor the user's wake-up action, ie microprocessor 30 is also followed by deep sleep mode, and the entire battery system goes into deep sleep. Mode, achieving ultra-low power consumption.

In one embodiment, the first voltage threshold is 3.6 volts. According to various test data and experience, when the minimum voltage of the battery cell of the battery pack 10 is lower than 3.6 volts, it is already a low power. If the power consumption is maintained high, the service life of the battery pack 10 will be affected. Therefore, when the minimum voltage of the cell is less than or equal to 3.6 volts, both the fuel gauge 20 and the microprocessor 30 are controlled to enter the deep sleep mode, thereby minimizing the power consumption of the battery.

It can be understood that the execution order of the above steps is not unique. For example, the steps S110 and S120 are interchangeable, and the embodiments including the above steps are all within the protection scope of the present invention.

It can be understood that in other embodiments, the first voltage threshold may also be other values, such as a first voltage threshold of 3.5 volts, etc., which is not strictly limited herein.

Embodiment 2:

Referring to FIG. 3, in an embodiment, when the determination result of step S130 in the first embodiment is negative, the method further includes:

Step S150: determining that the battery is in a state of no charging current, no discharging current, and no communication, and the duration of the battery is greater than or equal to the second preset duration.

In one embodiment, considering that the battery needs to better preserve the power of the battery pack 10 during transportation or storage for a long time, the battery can be maintained in a state of no charging current, no discharging current, and no communication. Counting the duration, when it is determined that the battery is in a state of no charging current, no discharging current, no communication, the duration of time is greater than or equal to the second preset duration, we can think that the battery is in the process of transportation or storage for a long time. .

The second preset duration can be artificially set to reasonable data, such as 3 days, 7 days, etc., which is not strictly limited herein.

Step S160: determining whether the minimum voltage of the cell is less than or equal to a second voltage threshold.

In one embodiment, the second voltage threshold is 3.9 volts. Since the cell voltage of the cell group 10 is above 3.9 volts, the chemical activity of the cell group 10 is relatively high, which is disadvantageous for the storage of the cell group 10. Therefore, in normal conditions, the cell group 10 will automatically discharge. Below 3.9 volts. It can be understood that in other embodiments, the second voltage threshold may be other values as long as it floats around 3.9 volts, such as 3.8 volts, 4.0 volts, etc., which are not strictly limited herein.

If the result of the determination in step S160 is YES, step S140 is also executed.

It can be understood that the order of execution of the above steps is not unique. For example, the steps S150 and S160 are interchangeable, and the embodiments including the above steps are all within the protection scope of the present invention.

In one embodiment, step S140 in the first embodiment and the second embodiment specifically includes: the microprocessor 30 issues a Shutdown command, and the fuel gauge 20 enters the deep sleep mode according to the Shutdown command, and then enters the depth in the fuel gauge 20 Microprocessor 30 also enters deep sleep mode after sleep mode.

Embodiment 3:

Referring to FIG. 4, in an embodiment, the electrical performance parameter in the second embodiment further includes a cell differential pressure, and before step S140, the method further includes:

Step S170: Determine, according to the electrical performance parameter, that the cell voltage difference is less than a third voltage threshold.

In this embodiment, the cell voltage difference that occurs is the absolute value of the voltage difference between any two cells in the cell group 10, that is, the absolute value of the voltage difference between any two cells is less than the third voltage. The threshold is considered to satisfy the condition.

In one embodiment, the third voltage threshold is 30 millivolts. Normally, when there is a cell voltage difference greater than 30 millivolts in the cell group 10, it indicates that the cell group 10 needs to be equalized, otherwise it is not suitable to enter the normal working state again.

It can be understood that in other embodiments, the third voltage threshold may also be other values, such as a third voltage threshold of 29 millivolts or 31 millivolts, etc., which is not strictly limited herein.

It can be understood that the execution order of the above steps is not unique. For example, step S150, step S160, and step S170 are interchangeable, as long as the embodiment including the above steps is within the protection scope of the present invention.

Embodiment 4:

Referring to FIG. 5, in an embodiment, after step S140 in the first embodiment, the method further includes:

Step S180: Receive an external wake-up instruction.

There are two types of external wake-up commands that are commonly used. One is to wake up through the battery button, and the other is to wake up by plugging in the charger.

Step S190: waking up the battery to enter a discharging state or a charging state according to the wake-up instruction.

Specifically, when the user wakes up through the button of the battery, the battery enters a discharging state, and when the user wakes up by accessing the charger, the battery enters a charging state.

The following is described in conjunction with a specific alternative embodiment. As shown in FIG. 6, first, after the battery is initialized, the microprocessor 30 determines whether the battery is charged, discharged, or communicated. The determination of charging and discharging the battery is mainly through The detection of current, while distinguishing whether the battery is charged or discharged depends mainly on the direction of the current, and the corresponding sampling circuit collects the electrical performance parameters of the battery, including the voltage difference between the cell and the minimum voltage of the cell.

When it is determined that the battery is in a state of no charging current, no discharging current, no communication, it is further determined whether the minimum voltage of the battery is less than or equal to 3.6 volts, and if so, further determining that the battery has no charging current, no discharging current, and no communication Whether the duration of the state is greater than or equal to 1 day, that is, 24 hours, and if so, the microprocessor 30 issues a Shutdown command, the fuel gauge 20 enters the ultra-low power deep sleep mode, and then the microprocessor 30 closes the function program. Only the wake-up program is kept working, and the deep sleep mode is also entered. At this time, the battery completely enters an ultra-low power state.

If the minimum voltage of the cell is greater than 3.6 volts, it is further determined whether the minimum voltage of the cell is less than 3.9 volts and the cell voltage difference is less than 30 millivolts, and the duration of the state in which the battery has no charging current, no discharging current, and no communication is greater than Or equal to 7 days, and if so, the microprocessor 30 issues a Shutdown command, the fuel gauge 20 enters the ultra-low power deep sleep mode, and then the microprocessor 30 turns off the function program, leaving only the wakeup program to work, and also enters the deep sleep mode. At this time, the cell group 10 completely enters an ultra-low power state.

When there is a button on the outside, the battery will be woken up and enter the discharge state; when the external charger is connected, the battery will be woken up to the charging state.

The above strategy for the minimum voltage of the cell is between 3.6 volts and 3.9 volts and lasts for more than 7 days, mainly considering the battery transportation process or the power consumption control of long-term storage, in order to obtain the maximum reserve power. The strategy that the minimum voltage of the cell is below 3.6 volts and lasts longer than one day is mainly to prevent over-discharge of the battery due to excessively low battery voltage.

Embodiment 5:

Please refer to FIG. 7 , which illustrates an embodiment of a power consumption control device for an unmanned aerial vehicle battery according to the present invention. The UAV battery power consumption control device includes: a status confirmation module 610, an electrical performance parameter acquisition module 620, a first determination module 630, and a control module 640.

The status confirmation module 610 is configured to determine that the battery is in a state of no charging current, no discharging current, and no communication. The electrical performance parameter collection module 620 is configured to collect electrical performance parameters of the battery, and the electrical performance parameters include a minimum voltage of the battery. The first determining module 630 is configured to determine, according to the electrical performance parameter, whether the minimum voltage of the battery is less than or equal to a first voltage threshold. The control module 640 is configured to control both the fuel gauge and the microprocessor to enter a deep sleep mode.

Further, in an embodiment, the status confirmation module 610 is specifically configured to determine that the battery is in a state of no charging current, no discharging current, and no communication, and the duration of the battery is greater than or equal to the first preset duration. This can be weighed against power consumption and boot speed.

Further, in an embodiment, the battery power control device further includes a second determining module.

When the determination result of the first determining module 630 is negative, the status confirming module 610 is further configured to determine that the battery is in a state of no charging current, no discharging current, and no communication, and the duration of the duration is greater than or equal to the second preset duration;

The second determining module is further configured to further determine whether the minimum voltage of the battery cell is less than or equal to a second voltage threshold, and if so,

Controlling, by the control module, the fuel gauge and the microprocessor both enter a deep sleep mode;

The second preset duration is greater than the first preset duration.

Further, in an embodiment, the electrical performance parameter further includes a cell voltage difference, and the state confirmation module 610 is further configured to determine, according to the electrical performance parameter, that the cell voltage difference is less than a third voltage threshold.

In one embodiment, the battery power control device further includes a receiving module and a wake-up module. The receiving module is configured to receive an external wake-up instruction, and the wake-up module is configured to wake up the battery to enter a discharging state or a charging state according to the wake-up instruction.

It should be noted that the foregoing method embodiments and device embodiments are implemented based on the same inventive concept, and the technical effects and technical features that can be provided by the method embodiments can be implemented or implemented by corresponding functional modules in the device embodiments, which is simple for presentation. I will not repeat them here.

Example 6:

FIG. 8 is a schematic structural diagram of an unmanned aerial vehicle according to an embodiment of the present invention. The UAV can perform the battery power control method as provided by the above method embodiments. As shown in FIG. 8, the UAV 70 includes one or more processors 701 and a memory 702. Wherein, a processor 701 is taken as an example in FIG. Of course, other suitable device modules can also be added or subtracted according to actual needs.

The processor 701 and the memory 702 may be connected by a bus or other means, as exemplified by a bus connection in FIG.

The memory 702 is a non-volatile computer readable storage medium for storing non-volatile software programs, non-volatile computer-executable programs, and modules, such as UAV battery power consumption control in embodiments of the present invention. The corresponding program instruction or module, for example, the status confirmation module 610, the electrical performance parameter acquisition module 620, the first determination module 630, and the control module 640 shown in FIG. 7, the processor 701 runs the non-stored memory 702. Volatile software programs, instructions, and modules to perform various functional applications and data processing of the server, that is, to implement the battery power control method of the above method embodiments.

The memory 702 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application required for at least one function; the storage data area may store some historical data calculated by the fuel gauge, and the like. Moreover, memory 702 can include high speed random access memory, and can also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some embodiments, memory 702 can optionally include a memory remotely located relative to processor 701, examples of which include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

Those skilled in the art will further appreciate that the various steps of the exemplary motor control method described in connection with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both, for clarity of illustration. The interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution.

Those skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention. The computer software can be stored in a computer readable storage medium, which, when executed, can include the flow of an embodiment of the methods described above. The storage medium may be a magnetic disk, an optical disk, a read-only storage memory, or a random storage memory.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not limited thereto; in the idea of the present invention, the technical features in the above embodiments or different embodiments may also be combined. The steps may be carried out in any order, and there are many other variations of the various aspects of the invention as described above, which are not provided in the details for the sake of brevity; although the invention has been described in detail with reference to the foregoing embodiments, It should be understood by those skilled in the art that the technical solutions described in the foregoing embodiments may be modified or equivalently substituted for some of the technical features; and the modifications or substitutions do not deviate from the embodiments of the present invention. The scope of the technical solution.

Claims

A battery power consumption control method, the battery comprising a fuel gauge and a microprocessor, wherein the method comprises:

Determining that the battery is in a state of no charging current, no discharging current, and no communication;

Collecting electrical performance parameters of the battery, the electrical performance parameters including a battery minimum voltage of the battery;

Determining, according to the electrical performance parameter, whether the minimum voltage of the battery cell is less than or equal to a first voltage threshold, and if so,

Both the fuel gauge and the microprocessor are controlled to enter a deep sleep mode.
The method according to claim 1, wherein the determining that the battery is in a state of no charging current, no discharging current, and no communication is specifically:

Determining that the battery is in a state of no charging current, no discharging current, and no communication is longer than or equal to a first preset duration.
The method according to claim 1 or 2, wherein the determining whether the minimum voltage of the battery cell is less than or equal to the first voltage threshold according to the electrical performance parameter, and when the determination result is negative, further comprising:

Determining that the battery is in a state of no charging current, no discharging current, and no communication, and the duration of the battery is greater than or equal to a second preset duration;

Determining whether the minimum voltage of the cell is less than or equal to a second voltage threshold, and if so,

Controlling both the fuel gauge and the microprocessor to enter a deep sleep mode;

The second preset duration is greater than the first preset duration.
The method of claim 3, wherein the electrical performance parameter further comprises a cell differential pressure, and the controlling the coulometer and the microprocessor before entering the deep sleep mode further comprises:

Determining, according to the electrical performance parameter, the cell voltage difference is less than a third voltage threshold.
The method according to claim 1, wherein after the controlling the fuel gauge and the microprocessor both enter a deep sleep mode, the method further comprises:

Receiving an external wake-up command;

The battery is awake according to the wake-up command to enter a discharging state or a charging state.
The method of claim 3 wherein said first voltage threshold is 3.6 volts, said second voltage threshold is 3.9 volts, and said third voltage threshold is 30 millivolts.
A battery power consumption control device, the battery comprising a fuel gauge and a microprocessor, wherein the device comprises:

a status confirmation module, configured to determine that the battery is in a state of no charging current, no discharging current, and no communication;

An electrical performance parameter acquisition module, configured to collect electrical performance parameters of the battery, where the electrical performance parameter includes a minimum voltage of the battery cell;

a first determining module, configured to determine, according to the electrical performance parameter, whether the minimum voltage of the battery cell is less than or equal to a first voltage threshold;

And a control module, configured to control the fuel gauge and the microprocessor to enter a deep sleep mode when the determination result of the first determining module is YES.
The device according to claim 7, wherein the state confirmation module is specifically configured to determine that the battery is in a state of no charging current, no discharging current, and no communication, and the duration of the battery is greater than or equal to the first preset duration. .
The device according to claim 7 or 8, wherein the device further comprises a second determining module;

When the determination result of the first determining module is negative, the status confirming module is further configured to determine that the battery is in a state of no charging current, no discharging current, and no communication, and the duration is greater than or equal to the second preset. duration;

The second determining module is further configured to further determine whether the minimum voltage of the battery cell is less than or equal to a second voltage threshold, and if so,

Controlling, by the control module, the fuel gauge and the microprocessor to enter a deep sleep mode;

The second preset duration is greater than the first preset duration.
The device according to claim 9, wherein the electrical performance parameter further comprises a cell voltage difference, and the state confirmation module is further configured to determine that the cell voltage difference is less than the third voltage according to the electrical performance parameter. Threshold.
The device according to claim 7, further comprising a receiving module and a wake-up module;

The receiving module is configured to receive an external wake-up instruction;

The wake-up module is configured to wake up the battery to enter a discharging state or a charging state according to the wake-up instruction.
The apparatus of claim 9 wherein said first voltage threshold is 3.6 volts, said second voltage threshold is 3.9 volts, and said third voltage threshold is 30 millivolts.
An unmanned aerial vehicle, comprising: a memory and a processor, the memory storing a program, the program implementing the battery according to any one of claims 1 to 6 when being read and executed by the processor Power control method.