WO2020007328A1

WO2020007328A1 - Safety processing method and device for battery of unmanned aerial vehicle

Info

Publication number: WO2020007328A1
Application number: PCT/CN2019/094599
Authority: WO
Inventors: 秦威
Original assignee: 深圳市道通智能航空技术有限公司
Priority date: 2018-07-04
Filing date: 2019-07-03
Publication date: 2020-01-09
Also published as: CN108767929B; CN108767929A

Abstract

The present invention relates to a safety processing method and device for a battery of an unmanned aerial vehicle. The method comprises: collecting electrical performance parameters of a battery, wherein the electrical performance parameters include a discharge current value of the battery and a voltage value of a single battery; determining whether the battery is over-discharged according to the electrical performance parameters, and if so, controlling the battery, such that same cannot be charged or discharged. The present invention can effectively eradicate a safety risk of a battery caused by serious over-discharge, thereby improving the reliability of the battery.

Description

Method and device for safely processing unmanned aerial vehicle batteries

[Cross-reference to related applications]

This application claims priority to Chinese Patent Application No. 2018107255565, filed on July 4, 2018, the entire contents of which are incorporated herein by reference.

[Technical Field]

The invention relates to the technical field of battery management, and in particular, to a method and a device for safely processing a battery of an unmanned aerial vehicle.

【Background technique】

Unmanned aerial vehicle is a kind of product with higher safety requirements. As the core of unmanned aerial vehicle safety, battery is particularly important in the safety design of unmanned aerial vehicle. Lithium batteries are widely used in drones due to their light weight and high energy density. Lithium batteries also have some natural defects, such as: they are greatly affected by ambient temperature, and they require higher charge and discharge voltages. Among them, the problem of over-discharge has always been a common problem for lithium batteries, especially because of the high discharge rate of the drone and aeromodelling batteries and the greater internal chemical activity of the battery, which leads to a much higher self-discharge rate than ordinary lithium batteries. The risks are also higher.

Once the voltage of a lithium battery is less than 2 volts, there will be irreversible chemical reactions, which will cause the battery to swell, reduce its capacity, and cause internal lithium evolution, which will seriously affect the safety of the battery. At present, for the problem of over-discharging the battery, the traditional method is to reduce the power consumption or to discard the reminder. However, reducing the power consumption cannot eliminate the battery's self-consumption. When the time is long enough, the battery will be placed below 2 volts. There is no restriction on the user's re-use. Both of these approaches have certain security risks.

[Summary of the Invention]

In order to solve the above technical problems, embodiments of the present invention provide a method and a device for safely processing a UAV battery that can reduce losses as much as possible.

To solve the above technical problems, the embodiments of the present invention provide the following technical solutions:

A method for safely handling a UAV battery includes:

Collecting electrical performance parameters of the battery, the electrical performance parameters including a battery discharge current value and a single battery voltage value;

Determining whether the battery is over-discharged according to the electrical performance parameter,

If yes, control the battery to be unable to charge and discharge.

In one embodiment, before determining whether the battery is over-discharged according to the electrical performance parameter, the method includes:

Detecting the sleep instruction of the battery;

Determining a battery state according to the electrical performance parameter and the detection result;

The battery state includes a discharged state, a hibernation state, and a standby state.

In one embodiment, determining whether the battery is over-discharged according to the electrical performance parameter includes:

When it is determined that the single-cell battery voltage value is less than the first voltage threshold and the duration is greater than the first preset time, it is determined that the battery is over-discharged.

In one embodiment, the first voltage threshold is 2 volts, and the first preset time is 20 seconds.

In one embodiment, determining the battery state according to the electrical performance parameter and the detection result includes:

Comparing the discharge current value and the single-cell battery voltage value of the battery with the first current threshold value and the second voltage threshold value, respectively;

When the discharge current value of the battery is greater than the first current threshold, determining that the battery state is a discharge state;

When the discharge current value of the battery is less than or equal to the first current threshold value and no sleep instruction of the battery is detected, determining that the battery state is a standby state;

When the duration of the single-cell battery voltage value being less than the second voltage threshold value is greater than the second preset time or a sleep instruction of the battery is detected, it is determined that the battery state is a sleep state.

In one embodiment, when it is determined that the battery state is a hibernation state according to the electrical performance parameter and the detection result, the method further includes:

Detect external wake-up instruction;

When an external wake-up command is detected, the charging and discharging circuits of the battery are closed.

In one embodiment, the first current threshold is 30 milliamps, the second voltage threshold is 2.3 volts, and the second time threshold is 10 seconds.

In one embodiment, after controlling the battery to be unable to be charged and discharged, the method further includes:

Issues a reminder about the end of life.

To solve the above technical problems, the embodiments of the present invention further provide the following technical solutions:

An unmanned aerial vehicle battery safety processing device includes:

A collection module for collecting electrical performance parameters of the battery, the electrical performance parameters including a discharge current value of the battery and a single battery voltage value;

A judging module, configured to judge whether the battery is over-discharged according to the electrical performance parameter;

A control module is configured to control the battery from being unable to be charged and discharged when the determination result of the determination module is yes.

In one of the embodiments, the apparatus further includes:

A detection module for detecting a sleep instruction of the battery;

A determination module, configured to determine a battery state according to the electrical performance parameter and the detection result;

In one embodiment, the determining module is specifically configured to determine that the battery is over-discharged when the single-cell battery voltage value is less than a first voltage threshold and the duration is greater than a first preset time.

In one embodiment, the determining module is specifically configured to:

When the duration of the single-cell battery voltage value being less than the second voltage threshold value is greater than the second preset time or a battery sleep command is detected, it is determined that the battery state is a sleep state.

In one embodiment, when it is determined that the battery state is a hibernation state according to the electrical performance parameter and a detection result, the detection module is further configured to:

Detect external wake-up instruction;

When an external wake-up command is detected, the control module closes the charging and discharging circuits of the battery.

In one of the embodiments, the device further includes a prompting module, the prompting module is configured to issue a scrapped battery prompt after the control module controls the battery to be unable to be charged and discharged.

The embodiments of the present invention also provide the following technical solutions:

An unmanned aerial vehicle includes a memory and a processor. The memory stores a program, and when the program is read and executed by the processor, implements the foregoing method for safely handling an unmanned aerial vehicle battery.

Compared with the prior art, the method and device for safely processing unmanned aerial vehicle batteries according to the embodiments of the present invention determine whether the battery is over-discharged according to the collected electrical performance parameters of the battery, and control the battery under the condition of determining that the battery is over-discharged The battery cannot be charged and discharged, which can effectively prevent the safety risk of the battery caused by severe overdischarge and improve the reliability of the battery.

[Brief Description of the Drawings]

One or more embodiments are exemplified by the pictures in the accompanying drawings. These exemplary descriptions do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the drawings in the drawings do not constitute a limitation on scale.

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

FIG. 2 is a schematic flowchart of a method for safely processing a battery of an unmanned aerial vehicle according to an embodiment of the present invention; FIG.

3 is a schematic flowchart of a part of a method for safely processing a battery of an unmanned aerial vehicle according to an embodiment of the present invention;

4 is a schematic flowchart of a method for safely handling a battery of an unmanned aerial vehicle according to another embodiment of the present invention;

FIG. 5 is a schematic flowchart of a method for safely processing a UAV battery in a specific scenario according to an embodiment of the present invention; FIG.

6 is a schematic diagram of an unmanned aerial vehicle battery safety processing device according to an embodiment of the present invention;

FIG. 7 is a hardware structural block diagram of an unmanned aerial vehicle according to an embodiment of the present invention.

【detailed description】

In order to facilitate understanding of the present invention, the following describes the present invention in more detail with reference to the accompanying drawings and specific embodiments. It should be noted that the steps shown in the flowchart of the drawings may be executed in a computer system such as a set of computer-executable instructions. And, although the logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than here.

Unless defined otherwise, all technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the technical field of the present invention. The terms used in the specification of the present invention in this specification are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more of the associated listed items.

In addition, 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 conflict with each other. The terms "first", "second", "third", etc. are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

FIG. 1 is a schematic diagram of an application environment provided by an embodiment of the present invention. As shown in FIG. 1, the application environment includes a battery 10, a battery protection module 20, and a microprocessor 30.

The battery 10 is composed of one or more battery cells, and a battery cell group arranged in any form is used to provide DC power for electrical equipment such as a motor. The battery 10 may have a corresponding capacity, volume size, or packaging form according to actual conditions. The battery 10 can be discharged or recharged under controlled conditions, simulating normal operating conditions.

The battery protection module 20 may be an integrated chip or a peripheral circuit, and collects corresponding data to calculate and determine the current power, current, and voltage of the battery. The battery protection module 20 may also run one or more suitable software programs, record data and perform calculations based on the data.

The necessary electrical connection is established between the battery protection module 20 and the battery 10. The battery protection module 20 includes a current sampling circuit, a voltage sampling circuit, a temperature sampling circuit, a battery status feedback circuit, a main loop control circuit, etc.), the battery protection module 20 Collect and obtain the data of the battery 10 through these electrical connections to determine the current electrical performance parameters of the battery 10 such as power, current, voltage, etc., determine the battery state (discharge state, hibernation state, or standby state), etc., and implement related protection functions (such as Short circuit protection, over current protection, over voltage protection, over temperature protection, etc.).

The microprocessor 30 and the battery protection module 20 are communicatively connected. The microprocessor 30 can control the related protection function to be turned on or off according to the related electrical performance parameters transmitted by the battery protection module 20. For example, the microprocessor 30 may send a battery hibernation instruction to the battery protection module 20, and the microprocessor 30 may also issue a scrap battery reminder when the battery 10 is over discharged. The battery protection module 20 controls the charging and discharging of the battery 10 in combination with the electrical performance parameters of the battery 10 after monitoring the battery hibernation command issued by the microprocessor 30. The method is mainly to control the cut-off and switching of the switch tube on the main circuit. Continuity.

Embodiment one:

FIG. 2 is a schematic flowchart of a method for safely handling a battery of an unmanned aerial vehicle according to an embodiment of the present invention, and the technical solution in the first embodiment is described in conjunction with FIG. 1. As shown in FIG. 2, the method for safely handling a UAV battery includes:

Step S110: Collect electrical performance parameters of the battery, where the electrical performance parameters include a discharge current value of the battery and a single battery voltage value.

In this embodiment, the “current value” that appears is only a numerical value, and there is no difference between positive and negative. The preceding charge and discharge are used to indicate the direction of the current.

In this embodiment, the voltage value of a single battery refers to a voltage value of one battery among a plurality of batteries. The collection of electrical performance parameters can generally be accomplished through a corresponding sampling circuit in the battery protection module 20.

Step S120: Determine whether the battery is over-discharged according to the electrical performance parameter, and if yes, execute step S130.

In one embodiment, the battery protection module 20 determines that the battery 10 is over-discharged when the voltage value of a single battery is less than a first voltage threshold and the duration is greater than a first preset time according to the collected electrical performance parameters.

Under normal circumstances, when the voltage value of a single battery is 2 volts, it is already a limit value, because the battery is basically scrapped when it continues to discharge, and the first preset time is set to 20 seconds for sufficient time. Make sure the battery voltage is 2 volts.

It can be understood that, in other embodiments, the first voltage threshold may also be other values, such as 2.1 volts, 2.2 volts, 2.3 volts, and the like, which are not strictly limited herein. Similarly, the first preset time can also be other values, such as 19 seconds, 21 seconds, etc., which is not strictly limited here.

Step S130: controlling the battery to be unable to be charged and discharged.

In an embodiment, controlling the battery to be unable to be charged and discharged is mainly to close the charging circuit and the discharging circuit through the battery protection module 20, that is, to control the switch-off or conduction of the switch tube on the main circuit.

Compared with the prior art, the unmanned aerial vehicle battery safety processing method of the embodiment of the present invention judges whether the battery is over-discharged according to the collected electrical performance parameters of the battery, and controls the battery to be unable to be charged if the battery is over-discharged. And discharge, which can effectively prevent battery safety risks caused by severe overdischarge and improve battery reliability.

Embodiment two:

Referring to FIG. 3, in an embodiment, before step S120 in the first embodiment, the method further includes:

Step S112: Detect the sleep instruction of the battery.

The battery sleep command is generally issued by the microprocessor 30. The microprocessor 30 can automatically issue a sleep instruction when the value of the battery's electrical performance parameter reaches a certain threshold or when the value of the battery's electrical performance parameter reaches a certain threshold meets a preset time value; the microprocessor 30 can also The sleep instruction is issued according to the user's external operation instruction, which is not strictly limited here.

Step S114: Determine a battery state according to the electrical performance parameter and the detection result.

In one embodiment, the battery protection module 20 may first determine a battery state according to the electrical performance parameter and the detection result. Battery status generally includes discharge status, charge status, hibernation status, and standby status. In this embodiment, the battery state includes a discharge state, a sleep state, and a standby state, that is, the determined battery state will be a discharge state, a sleep state, or a standby state. Because there is no over-discharge condition in the charging state, the technical solution of this embodiment is not needed.

Specifically, in one embodiment, it is necessary to compare the discharge current value of the battery with a first current threshold value, and compare the single-cell battery voltage value with the second voltage threshold value, where the first current threshold value is 30 milliamps, the second voltage threshold is 2.3 volts.

Because when the discharge current value is less than 30 milliamps, it may be interfered by some reverse current, not necessarily a true discharge. Through this step, some interference situations can be filtered out. It can be understood that, in other embodiments, the first current threshold may also float around 30 milliamps, such as 29 milliamps, 31 milliamps, etc., which is not strictly limited here.

In this embodiment, the second voltage threshold is greater than the first voltage threshold, because the first voltage threshold is a condition for the battery to be scrapped, and the second voltage threshold is mainly to put the battery into a low-power sleep state. It can be understood that, in other embodiments, the second voltage threshold is not limited to 2.3 volts, and is not strictly limited herein.

When the discharge current value of the battery is greater than the first current threshold, it is determined that the battery state is a discharged state.

In one embodiment, when the discharge current value of the battery is greater than 30 milliamps, it can be determined that the battery state is a discharged state.

When the discharge current value of the battery is less than or equal to the first current threshold value and no sleep instruction of the battery is detected, it is determined that the battery state is a standby state.

In one embodiment, when the discharge current value of the battery is less than or equal to 30 milliamps and the battery is not sleeping, it is determined that the battery state is a standby state.

In one embodiment, the second pre-time is 10 seconds. When the duration of the single-cell battery voltage is less than 2.3 volts for more than 10 seconds or a sleep command of the battery has been detected, the battery state is determined to be a sleep state.

In one embodiment, when the battery state is a sleep state, an external wake-up command is also detected in real time. When an external wake-up command is received, its charging circuit and discharging circuit are closed first. To prevent the charger from charging the battery and increasing the battery voltage, which will affect the judgment.

Example three:

Referring to FIG. 4, in an embodiment, based on the first embodiment, after step S130, the method further includes:

S140: Issue a scrap battery reminder.

In one embodiment, the reminder of the used battery may be a light display, a voice prompt, or a combination of the two, and the like is not limited herein.

The following description is made with reference to a specific optional embodiment. As shown in FIG. 5, the battery state is determined after the battery is initialized. In this embodiment, it is necessary to determine whether the battery state is the discharged state, the hibernation state, or the standby state. In this determination process, the corresponding sampling circuit in the battery protection module will collect the electrical performance parameters of the battery, and the electrical performance parameters include the discharge current value of the battery and the single-cell battery voltage value.

(1) If a discharge current is detected and it is determined that the discharge current value is greater than 30 milliamps, it is determined that the battery has entered the discharge state. After the battery enters the discharge state, the battery protection module will track the condition of the single battery voltage in real time. When the battery voltage is less than 2.0 volts and the duration is more than 20 seconds, the battery will enter the scrap mode, that is, the battery protection module will close the input and output of the main circuit to control the battery cannot be charged and discharged, and the microprocessor will also send the scrap battery Instructions, such as sound prompts, light prompts, etc. If the battery is in a discharged state, and no single-cell battery voltage is less than 2.0 volts and the duration is greater than 20 seconds, the battery continues to be discharged.

(2) If a discharge current is detected and it is determined that the discharge current value is less than or equal to 30 milliamps and the battery is not asleep, the battery is determined to be in a standby state. After the battery enters the standby state, the battery protection module will track a single cell in real time Battery voltage. When the voltage of any battery is less than 2.0 volts and the duration is more than 20 seconds, the battery will enter the scrap mode, that is, the battery protection module will close the input and output of the main circuit to control the battery cannot be charged and discharged. At the same time, the microprocessor will also give out battery waste instructions, such as sound prompts, light prompts and so on. If the battery is not in the standby state, the single-cell battery voltage is less than 2.0 volts and the duration is more than 20 seconds, then the standby state is maintained.

(3) If the circuit protection module detects the sleep command issued by the microprocessor, or if any battery voltage is less than 2.3 volts and the duration is greater than 10 seconds, it is determined that the battery enters the sleep state, and the main circuit input and the The output goes into an ultra-low power state. After the battery is in the sleep state, the external protection circuit must be controlled by a charger or a microprocessor to perform an external wake-up before the circuit protection module can be woken up. When the circuit protection module is awakened, the input and output of the main circuit will be turned off first to prevent the charger from charging the battery and increasing the battery voltage and affecting the judgment. Then, the battery protection module will continue to track the voltage of a single battery in real time. When the voltage of any battery is less than 2.0 volts and the duration is more than 20 seconds, the battery will enter the waste mode, that is, the battery protection module will close the input of the main circuit And output to control the battery can not be charged and discharged, at the same time the microprocessor will also give out battery instructions, such as sound prompts, light prompts and so on. If the battery is in the sleep state, and the single-cell battery voltage is less than 2.0 volts and the duration is more than 20 seconds, the battery will enter the standby state.

Here, the first voltage threshold is set to 2.0 volts and the first preset time is 20 seconds. The main reason is that the battery is almost scrapped when the voltage of a single battery is about 2.0 volts, and once the battery is in scrap mode, the battery cannot It is used again, so 20 seconds is used to ensure that the battery is completely discharged.

Here, the second voltage threshold is set to 2.3 volts and the second preset time is 10 seconds. The main reason is that when the battery voltage is about 2.3 volts, it is already low power. At this time, it needs to enter low power consumption sleep. Mode, or it will soon be scrapped. The value of 10 seconds is set to be long enough to prevent misjudgment results, but this time should not be too long, otherwise the battery voltage will be consumed quickly.

It can be understood that the first voltage threshold, the first preset time, the second voltage threshold, and the second preset time are not limited to the foregoing values, as long as the second voltage threshold is ensured to be greater than the first voltage threshold.

Through the cooperation of the above battery protection module and the microprocessor, the monitoring of the battery in the discharging state, standby state and hibernation state can be completed, so as to ensure that the battery is immediately executed when the battery needs to be discarded, thereby reducing the hidden danger of the battery.

Embodiment 4:

Please refer to FIG. 6, which is an embodiment of an unmanned aerial vehicle battery safety processing device provided in the present invention. The unmanned aerial vehicle battery safety processing device includes a collection module 610, a determination module 620, and a control module 630.

The collection module 610 is used to collect electrical performance parameters of the battery, and the electrical performance parameters include a discharge current value of the battery and a single battery voltage value. The determining module 620 is configured to determine whether the battery is over-discharged according to the electrical performance parameter. The control module 630 is configured to control the battery to be unable to be charged and discharged when the determination result of the determination module is yes.

In one embodiment, the determining module 620 is specifically configured to determine that the battery is over-discharged when the single-cell battery voltage value is less than the first voltage threshold and the duration is greater than the first preset time.

Further, in one embodiment, the device further includes a detection module and a determination module, wherein the detection module is configured to detect a sleep instruction of the battery, and the determination module is configured to determine according to the electrical performance parameter and the detection result. Battery status. The battery state includes a discharged state, a sleep state, and a standby state.

Further, in one embodiment, the determining module is configured to determine that the state of the battery is a discharged state when the discharge current value of the battery is greater than the first current threshold; when the discharge current value of the battery is less than Or is equal to the first current threshold value and no battery hibernation instruction is detected, determining that the battery state is a standby state; when the duration of the single-cell battery voltage value is less than a second voltage threshold value is greater than a second preset time Or when a sleep instruction of a battery is detected, it is determined that the battery state is a sleep state.

Further, in one embodiment, when it is determined that the battery state is a hibernation state according to the electrical performance parameter and the detection result, the detection module is further configured to detect an external wake-up instruction, and when the detection module detects an external When the wake-up command is issued, the control module 630 closes the charging and discharging circuits of the battery.

In one embodiment, the device further includes a prompting module, and the prompting module is configured to issue a reminder to the end of the battery after the control module 630 controls the battery to be unable to be charged and discharged.

It should be noted that the above method embodiments and device embodiments are implemented based on the same inventive concept, and the technical effects and technical features that can be possessed by the method embodiments can be executed or implemented by corresponding functional modules in the device embodiments, for the sake of simplicity of presentation. I will not repeat them here.

Embodiment 5:

FIG. 7 is a schematic structural diagram of an unmanned aerial vehicle according to an embodiment of the present invention. The unmanned aerial vehicle may execute the method for safely handling a battery of an unmanned aerial vehicle as provided in the foregoing method embodiment. As shown in FIG. 7, the unmanned aerial vehicle 70 includes one or more processors 701 and a memory 702. Among them, one processor 701 is taken as an example in FIG. 7. The above-mentioned unmanned aerial vehicle may further include an end-of-life prompting device 703. Of course, other suitable device modules can also be added or omitted according to actual needs.

The processor 701, the memory 702, and the discarding prompting device 703 may be connected through a bus or other manners. In FIG. 7, the connection through the bus is taken as an example.

The memory 702 is a non-volatile computer-readable storage medium, and can be used to store non-volatile software programs, non-volatile computer executable programs, and modules, such as a method for safely processing a UAV battery in the embodiment of the present invention. Corresponding program instructions or modules, for example, the acquisition module 610, the judgment module 620, and the control module 630 shown in FIG. 6, and the scrap prompting device 703 in the UAV may be a voice playback device or a light indicating device, etc. No strict restrictions. The processor 701 executes various functional applications and data processing of the server by running non-volatile software programs, instructions, and modules stored in the memory 702, that is, a method for safely processing a battery of an unmanned aerial vehicle in the foregoing method embodiment.

The memory 702 may include a storage program area and a storage data area, where the storage program area may store an operating system and application programs required for at least one function; the storage data area may store some historical data calculated by the fuel gauge, and the like. In addition, the memory 702 may include a high-speed random access memory, and may further include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some embodiments, the memory 702 may optionally include a memory remotely set with respect to the processor 701. Examples of the foregoing network 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 should further realize that each step of the exemplary motor control method described in combination with the embodiments disclosed herein can be implemented by electronic hardware, computer software, or a combination of the two, in order to clearly explain The interchangeability of hardware and software. In the above description, the composition and steps of each example have been generally described in terms of functions. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution.

Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention. The computer software may be stored in a computer-readable storage medium. When the program is executed, the program may include the processes of the embodiments 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 describe the technical solution of the present invention, but not limited thereto; under the idea of the present invention, the technical features in the above embodiments or different embodiments can also be combined, The steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, for the sake of brevity, they are not provided in the details; although the invention has been described in detail with reference to the foregoing embodiments, it is common in the art The skilled person should understand that it can still modify the technical solutions described in the foregoing embodiments, or equivalently replace some of the technical features; and these modifications or replacements do not deviate from the essence of the corresponding technical solutions from the implementation of the present invention. Examples of technical solutions.

Claims

A method for safely handling a battery of an unmanned aerial vehicle is characterized in that it includes:

Collecting electrical performance parameters of the battery, the electrical performance parameters including a battery discharge current value and a single battery voltage value;

Determining whether the battery is over-discharged according to the electrical performance parameter,

If yes, control the battery to be unable to charge and discharge.
The method according to claim 1, wherein before determining whether the battery is over-discharged according to the electrical performance parameter, comprises:

Detecting the sleep instruction of the battery;

Determining a battery state according to the electrical performance parameter and the detection result;

The battery state includes a discharged state, a hibernation state, and a standby state.
The method according to claim 1, wherein the determining whether the battery is over-discharged according to the electrical performance parameter comprises:

When it is determined that the single-cell battery voltage value is less than the first voltage threshold and the duration is greater than the first preset time, it is determined that the battery is over-discharged.
The method according to claim 3, wherein the first voltage threshold is 2 volts, and the first preset time is 20 seconds.
The method according to claim 2, wherein determining the battery state according to the electrical performance parameter and the detection result comprises:

Comparing the discharge current value and the single-cell battery voltage value of the battery with the first current threshold value and the second voltage threshold value, respectively;

When the discharge current value of the battery is greater than the first current threshold, determining that the battery state is a discharge state;

When the discharge current value of the battery is less than or equal to the first current threshold value and no sleep instruction of the battery is detected, determining that the battery state is a standby state;

When the duration of the single-cell battery voltage value being less than the second voltage threshold value is greater than the second preset time or a sleep instruction of the battery is detected, it is determined that the battery state is a sleep state.
The method according to claim 5, wherein when it is determined that the battery state is a hibernation state according to the electrical performance parameter and the detection result, further comprising:

Detect external wake-up instruction;

When an external wake-up command is detected, the charging and discharging circuits of the battery are closed.
The method according to claim 5, wherein the first current threshold is 30 milliamps, the second voltage threshold is 2.3 volts, and the second time threshold is 10 seconds.
The method according to any one of claims 1 to 7, wherein after controlling the battery to be unable to be charged and discharged, further comprising:

Issues a reminder about the end of life.
An unmanned aerial vehicle battery safety processing device, comprising:

A collection module for collecting electrical performance parameters of the battery, the electrical performance parameters including a discharge current value of the battery and a single battery voltage value;

A judging module, configured to judge whether the battery is over-discharged according to the electrical performance parameter;

A control module is configured to control the battery from being unable to be charged and discharged when the determination result of the determination module is yes.
The apparatus according to claim 9, further comprising:

A detection module for detecting a sleep instruction of the battery;

A determination module, configured to determine a battery state according to the electrical performance parameter and the detection result;

The battery state includes a discharged state, a hibernation state, and a standby state.
The device according to claim 9, wherein the determining module is specifically configured to determine that the battery is over-discharged when the voltage value of a single battery is less than a first voltage threshold and the duration is greater than a first preset time.
The device according to claim 11, wherein the first voltage threshold is 2 volts, and the first preset time is 20 seconds.
The apparatus according to claim 10, wherein the determining module is specifically configured to:

Comparing the discharge current value and the single-cell battery voltage value of the battery with the first current threshold value and the second voltage threshold value, respectively;

When the discharge current value of the battery is greater than the first current threshold, determining that the battery state is a discharge state;

When the discharge current value of the battery is less than or equal to the first current threshold value and no sleep instruction of the battery is detected, determining that the battery state is a standby state;

When the duration of the single-cell battery voltage value being less than the second voltage threshold value is greater than the second preset time or a sleep instruction of the battery is detected, it is determined that the battery state is a sleep state.
The device according to claim 13, wherein when it is determined that the battery state is a hibernation state according to the electrical performance parameter and a detection result, the detection module is further configured to:

Detect external wake-up instruction;

When an external wake-up command is detected, the control module closes the charging and discharging circuits of the battery.
The device according to claim 13, wherein the first current threshold is 30 milliamps, the second voltage threshold is 2.3 volts, and the second time threshold is 10 seconds.
The device according to claim 9 to 15, wherein the device further comprises a prompting module, and the prompting module is configured to issue a prompt for discarded batteries after the control module controls the battery to be unable to be charged and discharged.
An unmanned aerial vehicle is characterized in that it includes a memory and a processor. The memory stores a program, and when the program is read and executed by the processor, the unmanned aircraft according to any one of claims 1 to 8 is implemented. Human aircraft battery safe handling method.