WO2021142597A1

WO2021142597A1 - Battery control method and device, and storage medium

Info

Publication number: WO2021142597A1
Application number: PCT/CN2020/071860
Authority: WO
Inventors: 许柏皋; 刘强; 李鹏
Original assignee: 深圳市大疆创新科技有限公司
Priority date: 2020-01-13
Filing date: 2020-01-13
Publication date: 2021-07-22
Also published as: CN112956103A

Abstract

Disclosed are a battery control method and device, and a storage medium. The method comprises: acquiring battery parameters of a battery (S101); determining, according to the battery parameters, whether the battery is short-circuited (S102); if the battery is short-circuited, determining a battery protection strategy corresponding to the battery being short-circuited (S103); and controlling the battery to execute the battery protection strategy (S104).

Description

Battery control method, equipment and storage medium

Technical field

This application relates to the field of battery technology, and in particular to a battery control method, a smart battery, a charging system, a removable component, and a storage medium.

Background technique

Batteries are used to power electronic devices, such as lithium batteries used to power drones. When in use, there are often short circuits inside the battery. The occurrence of short circuits is accidental. There are many reasons for short circuits. Different use environments or The conditions of use may cause short circuits of varying degrees. A short circuit will cause the battery to fail and even cause a fire accident. Therefore, how to accurately identify and protect the short circuit in the battery becomes an urgent problem to be solved.

Summary of the invention

Based on this, the present application provides a battery control method, a smart battery, a charging system, a removable component, and a storage medium to improve the safety of battery use.

In the first aspect, the present application provides a battery control method applied to a battery, and the method includes:

Acquiring battery parameters of the battery;

Determining whether the battery has a short circuit according to the battery parameter;

If the battery is short-circuited, determine the short-circuit degree of the short-circuit according to the battery parameters;

Determining a battery protection strategy corresponding to a short circuit of the battery according to the degree of short circuit and a multi-level battery protection strategy, where the multi-level battery protection strategy includes a plurality of battery protection strategies corresponding to different degrees of short circuit;

The battery is controlled to execute the determined battery protection strategy.

In addition, this application also provides another battery control method, which includes:

Acquiring battery parameters of the battery;

If the battery is short-circuited, determine the battery protection strategy corresponding to the short-circuit of the battery in the multi-level battery protection strategy according to the multi-level battery protection strategy;

Controlling the battery to execute the battery protection strategy.

In a second aspect, the present application also provides a smart battery, the smart battery including a processor, a memory, a battery cell, and a battery circuit connected to the battery cell;

The battery circuit is connected to the processor, and is used to control battery charging or discharging;

The memory is used to store a computer program;

The processor is used to execute the computer program and when executing the computer program, implement the following steps:

Acquiring battery parameters of the battery;

In addition, this application also provides another smart battery, which includes a processor, a memory, a battery cell, and a battery circuit connected to the battery cell;

The memory is used to store a computer program;

Acquiring battery parameters of the battery;

If the battery is short-circuited, according to the multi-level battery protection strategy, a battery protection strategy corresponding to the short-circuit of the battery in the multi-level battery protection strategy is determined, and the battery protection strategy includes at least one of the following: Discharging the battery to a preset voltage range corresponding to the safe storage of the battery, and controlling the battery to be in a locked state;

Controlling the battery to execute the battery protection strategy.

In a third aspect, the present application also provides a charging system, the charging system includes the smart battery described in any one of the above and a charger, and the charger is used to charge the smart battery.

In a fourth aspect, the present application also provides a movable component, which includes a movable platform and a smart battery as described above; the smart battery is used to be installed on the movable platform for The movable platform is powered.

In a fifth aspect, the present application also provides a computer-readable storage medium that stores a computer program, and when the computer program is executed by a processor, the processor implements the above-mentioned battery control method.

The battery control method, device and storage medium proposed in this application obtain battery parameters of the battery; determine whether the battery has a short circuit according to the battery parameters; when the battery has a short circuit, determine whether the battery is short-circuited with the battery A battery protection strategy corresponding to the occurrence of a short circuit; controlling the battery to execute the battery protection strategy. Furthermore, when the battery is short-circuited, the protection of the battery is realized, thereby improving the safety of the battery.

It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the application.

Description of the drawings

In order to explain the technical solutions of the embodiments of the present application more clearly, the following will briefly introduce the drawings used in the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present application. Ordinary technicians can obtain other drawings based on these drawings without creative work.

FIG. 1 is a schematic structural diagram of a charging system provided by an embodiment of the present application;

2 is a schematic flowchart of steps of a battery control method provided by an embodiment of the present application;

FIG. 3 is a graph of charging voltage when a battery is short-circuited according to an embodiment of the present application;

FIG. 4 is a graph of the charging voltage when the battery is not short-circuited according to an embodiment of the present application; FIG.

FIG. 5 is a schematic diagram of an application scenario of a battery control method provided by an embodiment of the present application;

FIG. 6 is a schematic diagram of another application scenario of the battery control method provided by the embodiment of the present application;

FIG. 7 is a schematic flowchart of steps of another battery control method provided by an embodiment of the present application;

FIG. 8 is a schematic diagram of another application scenario of the battery control method provided by the embodiment of the present application;

FIG. 9 is a schematic flowchart of steps of another battery control method provided by an embodiment of the present application;

FIG. 10 is a schematic block diagram of a smart battery provided by an embodiment of the present application;

Fig. 11 is a schematic block diagram of a movable component provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of them. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

The flowchart shown in the drawings is only an example, and does not necessarily include all contents and operations/steps, nor does it have to be executed in the described order. For example, some operations/steps can also be decomposed, combined or partially combined, so the actual execution order may be changed according to actual conditions.

The embodiments of the present application provide a battery control method, a smart battery, a charging system, a removable component, and a storage medium. The battery control method can avoid accidents caused by a short circuit of the battery. The short circuit includes a micro short circuit, thereby improving The safety of battery use.

Hereinafter, some embodiments of the present application will be described in detail with reference to the accompanying drawings. In the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

Please refer to FIG. 1, which is a schematic block diagram of a charging system provided by an embodiment of the present application. The charging system 100 includes a smart battery 10 and a charger 20. The charger 20 is used to connect an external power source to charge the smart battery 10, and the smart battery 10 is used to power electronic devices, for example, to power a movable platform and a load carried on the movable platform.

In the embodiment of the present application, the smart battery 10 includes a battery management system (Battery Management System, BMS). The battery management system includes a Microcontroller Unit (MCU) and a discharging resistor. The discharging resistor is connected to the battery through a discharging circuit. It is used to discharge the battery under the control of the micro-control unit.

Among them, the micro-control unit is used to obtain the battery parameters of the battery and process the battery parameters, such as charging current, charging voltage, charging time, discharging current, discharging current, discharging time, battery temperature, constant voltage charging time, constant voltage The ratio of charge capacity to charge-discharge capacity and so on.

The battery management system can be used to estimate the State of Charge (SOC), that is, the remaining battery power, to ensure that the SOC is maintained within a reasonable range, and to prevent damage to the battery due to overcharge or overdischarge.

During the battery charging and discharging process, the battery management system can also collect the battery voltage, temperature, and charging and discharging current in real time to prevent the battery from being overcharged or overdischarged.

Among them, movable platforms include aircraft, robots, electric vehicles or autonomous unmanned vehicles.

For example, the smart battery 10 supplies power to the motor of the aircraft to control the rotation of the propeller of the motor, so as to realize the flight of the aircraft; for another example, the smart battery 10 powers the camera camera on board the aircraft for aerial photography and so on.

Among them, the aircraft includes drones, which include rotary-wing drones, such as four-rotor drones, hexa-rotor drones, and octo-rotor drones. It can also be a fixed-wing drone or It is a combination of rotary-wing and fixed-wing drones, and is not limited here.

Among them, the robots include educational robots, which use a Mecanum wheel omnidirectional chassis, and are equipped with multiple pieces of intelligent armor. Each intelligent armor has a built-in impact detection module that can quickly detect physical strikes. At the same time, it also includes a two-axis pan/tilt, which can be flexibly rotated, matched with the transmitter to accurately, stably and continuously fire crystal bombs or infrared beams, and matched with ballistic light effects, giving users a more realistic shooting experience.

It can be seen that the importance of the battery to the mobile platform, if the battery is abnormal, it will affect the safety of the mobile platform.

However, existing batteries, such as lithium-ion batteries, often have some internal short-circuits when they are in use, such as micro-shorts, which can cause accidents such as battery failure and fire. Since the internal short circuit of the battery has a certain contingency, it brings difficulty to the detection. At present, some related detection circuits are used for short-circuit detection, but the hardware cost is increased. At the same time, there are problems such as inability to perform effective protection after a short circuit is detected.

To this end, the embodiments of the present application provide a battery control method, a smart battery, a charging system, a removable component, and a storage medium. The battery control method can be applied to a smart battery. When it is determined that the battery is short-circuited, the battery is effectively controlled. The protection of the battery, thereby improving the safety of battery use.

Please refer to FIG. 2, which is a schematic flowchart of steps of a battery control method provided by an embodiment of the present application. The battery control method can be applied to a smart battery, so that the battery itself can identify whether the battery is short-circuited, and the use/storage safety of the battery is improved. This method can also be applied to electronic devices capable of communicating with batteries, such as chargers, battery stewards, control terminals, and mobile platforms. The electronic device can identify whether the battery is short-circuited online during use, and effectively protect the battery and/or the electronic group device.

As shown in FIG. 2, the battery control method includes steps S101 to S104.

S101. Obtain battery parameters of the battery.

Wherein, the battery parameters include at least one of constant voltage charging time, constant voltage charging capacity, charge-discharge capacity ratio, and battery temperature.

Specifically, the battery parameters collected through the battery circuit can be obtained. For example, when the battery is charged, it enters the constant voltage charging phase, and the constant voltage charging time is obtained by acquiring the time of the constant voltage charging phase. For another example, the battery temperature collected by a temperature sensor can be acquired, and the temperature sensor can be located on the surface of the battery or inside the battery. The battery circuit can communicate with the temperature sensor to obtain battery temperature data.

Specifically, the calculated battery parameters can also be obtained, for example, the charge and discharge capacity of the battery, that is, the charge capacity and the discharge capacity, can be calculated by the ampere-hour integral calculation, and then the charge and discharge capacity ratio can be calculated according to the charge capacity and the discharge capacity.

S102: Determine whether the battery has a short circuit according to the battery parameter.

You can determine whether the battery is short-circuited by judging whether the battery parameters are abnormal. For example, it is determined whether the battery parameter is abnormal by comparing with the standard parameter, and the standard parameter is the parameter when the battery is normal.

Exemplarily, determining whether the battery has a short circuit according to the battery parameters is specifically: obtaining the standard parameters of the battery; determining whether the battery has a short circuit according to the difference between the battery parameters and the standard parameters.

For example, to determine whether the difference between the battery parameters and the standard parameters is within the preset range; if the difference between the battery parameters and the standard parameters is within the preset range, it is determined that the battery does not have a short circuit; if the difference between the battery parameters and the standard parameters is If the difference is not within the preset range, it is determined that the battery is short-circuited. The preset range can accurately determine whether the battery is short-circuited.

Among them, the preset range is set according to the type of battery. Different types of batteries have different preset ranges. Different types of batteries include different battery capacities or different battery cell materials, such as lithium ion batteries and lead storage batteries.

For another example, determine whether the battery parameter is greater than the standard parameter; if the battery parameter is greater than the standard parameter, it is determined that the battery has a short circuit; if the battery parameter is less than or equal to the standard parameter, it is determined that the battery does not have a short circuit. This can quickly determine whether the battery has a short circuit.

In some embodiments, if the battery parameter is the constant voltage charging time, the standard parameter is the standard constant voltage charging time. Determine whether the battery is short-circuited, specifically: determine whether the constant voltage charging time is greater than the standard constant voltage charging time; if the constant voltage charging time is greater than the standard constant voltage charging time, determine whether the battery is short-circuited; if the constant voltage charging time is less than or equal to the standard constant voltage Charging time, make sure that the battery is not short-circuited.

Because battery charging generally includes a constant current charging stage and a constant voltage charging stage, for batteries of the same type and with a fixed capacity, the charging time in the constant voltage charging stage is basically the same, which can be based on the constant voltage charging time of the constant voltage charging stage To determine whether the battery is short-circuited.

For example, lithium batteries are charged with constant current and constant voltage, and the time for constant voltage charging is generally 20-30 minutes. When the battery is short-circuited, the time for constant voltage charging of the battery will be greatly extended. It may be 40-50 minutes, or it may be a couple of hours. Therefore, it is possible to determine whether the battery is short-circuited by detecting the charging time of the constant voltage charging stage of the battery.

In some embodiments, if the battery parameter is the constant voltage charging capacity, the standard parameter is the standard constant voltage charging capacity. Determine whether the battery is short-circuited, specifically: determine whether the constant voltage charging capacity is greater than the standard constant voltage charging capacity; if the constant voltage charging capacity is greater than the standard constant voltage charging capacity, confirm that the battery is short-circuited; if the constant voltage charging capacity is less than or equal to the standard constant voltage Charging capacity, make sure the battery is not short-circuited.

In the normal state, the constant voltage charging capacity of the battery is fixed. If there is a short circuit, the battery will have a leakage phenomenon, which will cause the constant voltage charging capacity of the battery to be larger, even far greater than the constant voltage charging of the battery in the normal state. capacitance. Therefore, the constant voltage charging capacity can be used to quickly and accurately determine whether the battery has a short circuit, such as a micro short circuit.

Exemplarily, if the battery parameter is the charge-discharge capacity ratio, the standard parameter is the standard charge-discharge capacity ratio. Determine whether the battery is short-circuited, specifically: determine whether the charge-discharge capacity ratio is greater than the standard charge-discharge capacity ratio; if the charge-discharge capacity ratio is greater than the standard charge-discharge capacity ratio, determine whether the battery is short-circuited; if the charge-discharge capacity ratio is less than or equal to the standard charge-discharge capacity ratio Discharge capacity ratio, it is determined that the battery does not have a short circuit.

In the normal state, the charge-discharge capacity ratio of the battery is generally in a fixed range, while the charge-discharge capacity ratio of the short-circuited battery is larger. Therefore, it can be determined whether the battery is short-circuited according to the change of the charge-discharge capacity ratio.

For example, for lithium-ion batteries, the charge-discharge capacity ratio will fluctuate in the range of 1.01-1.05 under normal conditions, while for lithium-ion batteries with micro-short circuits, the charge-discharge capacity ratio will be much greater than 1, which is based on the charge-discharge capacity ratio. Change to determine whether the battery is short-circuited. For example, when the ratio of the charge-discharge capacity ratio is greater than 1.1, it can be determined that the battery has a micro short circuit.

In some embodiments, in order to accurately determine whether the battery is short-circuited, the corresponding charging voltage and charging time can also be obtained when the battery is being charged. The charging voltage and charging time are used to indicate the battery parameters of the battery to determine whether the battery is short-circuited. .

Correspondingly, to determine whether the battery is short-circuited, it can be determined whether the battery is short-circuited according to the corresponding charging voltage and charging time when the battery is charging.

Since the change trend of the charging voltage with the charging time when the battery is short-circuited is different from the change trend of the charging voltage with the charging time in the normal state, it can be determined whether the battery is short-circuited according to the charging voltage and the charging time.

In some embodiments, the battery temperature rises to a certain threshold, which is often caused by a battery short circuit. The battery temperature can be detected. When the battery temperature rises to a certain threshold range, it is determined that the battery may have a short circuit.

As shown in Fig. 3, Fig. 3 is a graph showing the change trend of the charging voltage of a battery with a short circuit with the charging time; as shown in Fig. 4, Fig. 4 is a graph showing the change of the charging voltage of the battery under a normal state with the charging time. Therefore, it can be determined whether the battery is short-circuited according to the change trend graph corresponding to the charging voltage and the charging time.

It can be seen from Figure 3 and Figure 4 that the difference is more obvious in the constant voltage charging stage, in order to quickly and accurately determine whether the battery is short-circuited. The obtained charging voltage includes at least a constant voltage charging voltage; accordingly, the charging time includes at least a constant voltage charging time.

It should be noted that the constant voltage charging voltage and the constant voltage charging time are the charging voltage and the charging time when the battery enters the constant voltage charging stage.

S103: If the battery is short-circuited, determine a battery protection strategy corresponding to the battery's short-circuit.

In some embodiments, if the battery has a short circuit, a battery protection strategy corresponding to the battery short circuit in the multi-level battery protection strategy is determined according to a multi-level battery protection strategy. The multi-level battery protection strategy may also be related to other abnormal conditions of the battery. For example, the multi-level battery protection strategy may also have a battery protection strategy corresponding to the over-temperature of the battery, and the multi-level battery protection strategy may also have The battery protection strategy corresponding to the leakage current of the battery.

The battery protection strategy corresponding to the short-circuit of the battery may be a preset battery protection strategy, and the battery protection strategy may be a strategy for protecting the battery when the battery is short-circuited.

The battery protection strategy may include at least one of the following: discharging the battery to a preset voltage range corresponding to the safe storage of the battery, and controlling the battery to be in a locked state.

Of course, the battery protection strategy can also include other strategies. For example, output prompt information, which is used to process the battery according to the prompt information. The prompt information can be voice prompt information, text prompt information, indicator prompt information, and so on.

In some embodiments, the battery protection strategy includes a multi-level battery protection strategy. In the multi-level battery protection strategy, the protection mode of each level of the battery protection strategy is different, and the degree of short circuit corresponding to each level of the battery protection strategy is also different. In order to determine the corresponding protection strategy according to the short circuit degree of the battery, and then carry out effective and reasonable protection of the battery.

Exemplarily, the multi-level battery protection strategy includes at least one of the following: a first-level battery protection strategy, a second-level battery protection strategy, and a third-level battery protection strategy.

Among them, the first-level battery protection strategy includes: outputting prompt information for prompting the user to return for repair and maintenance.

Wherein, the second-level battery protection strategy includes: controlling the battery to enter a self-discharge procedure to discharge the battery, and/or outputting a prompt message for prompting the user that the battery is unusable.

Wherein, the third-level battery protection strategy includes: controlling the battery to be in a locked state, and/or outputting prompt information for prompting the user that the battery has been scrapped.

Specifically, the degree of short circuit corresponding to the short circuit of the battery can be determined first; and then the multi-level battery protection strategy corresponding to the short circuit can be determined according to the degree of short circuit.

For example, the degree of short circuit includes the degree of short circuit a, the degree of short circuit b, and the degree of short circuit c, respectively corresponding to the first-level battery protection strategy, the second-level battery protection strategy, and the third-level battery protection strategy.

Wherein, determining the degree of short circuit of the short circuit specifically includes: determining the degree of difference between battery parameters and standard parameters, and determining the degree of short circuit according to the degree of difference.

Exemplarily, the constant voltage charging time of the battery exceeds the standard constant voltage charging time by 10 minutes, which is defined as the degree of short circuit a; the constant voltage charging time of the battery exceeds the standard constant voltage charging time by 20 minutes, and is defined as the short circuit degree b; The charging time exceeds the standard constant voltage charging time for 30 minutes, which is defined as the degree of short circuit c.

For example, if the constant voltage charging time of the battery is 45 minutes, and the standard constant voltage charging time is 20 minutes, the short circuit degree of the battery can be determined as the short circuit degree b. Therefore, the multi-level battery protection strategy corresponding to the short circuit of the battery is determined to be the second level Battery protection strategy.

S104. Control the battery to execute the battery protection strategy.

Specifically, the battery is discharged through a discharge resistor preset in the battery management system, and discharged to a preset voltage range; and/or, the charging switch and the discharging switch of the battery are controlled to be in an off state, so that the battery is in a locked state , That is, permanent failure.

Among them, the preset voltage range is a safe voltage range, and a range value near 0V can be set, and the specific range value is not limited here.

In some embodiments, of course, other battery protection strategies can also be adopted, such as outputting a prompt message to prompt the user that the battery is short-circuited. The prompt information includes voice prompt information, text prompt information, and/or indicator prompt information. For example, the indicator prompt information uses different LEDs to form a light language to prompt the user that the battery is short-circuited.

It is understandable that when the battery is in the charging state, it is detected that the battery is short-circuited and the charging is stopped before executing the battery protection strategy; when the battery is in the discharging state, when the safety of the mobile platform using the battery is ensured, all the steps are executed. Describe the battery protection strategy.

Exemplarily, as shown in FIG. 5, if it is determined that the battery is short-circuited during the battery charging process, stop charging the battery, and execute the battery protection strategy. Wherein, to stop charging the battery, the micro-control unit can send a control signal to the charging switch circuit to turn off the charging switch circuit; of course, the micro-control unit can also send a control signal to the charger to stop the charger from charging.

For example, according to the constant voltage charging time, or the charging voltage and the corresponding charging time, determine that the smart battery is short-circuited, stop continuing to charge the battery, and discharge the battery to a preset voltage range, or control the battery to be in a locked state . This prevents the short-circuited battery from being used by the user, thereby improving the safety of the battery.

Exemplarily, as shown in Figure 6, the drone is equipped with a smart battery. During the flight of the drone, the micro-control unit of the smart battery determines that the battery is short-circuited according to the battery parameters, for example, the battery is determined based on the charge-discharge capacity ratio. Short-circuit, the micro-control unit of the smart battery sends an instruction to the drone's flight controller to instruct the drone to return home. After receiving the instruction, the flight controller controls the aircraft to return home and feeds it back to the micro-control unit of the smart battery. After receiving the feedback information, the micro control unit executes the battery protection strategy.

Of course, the micro-control unit of the smart battery sends an instruction to the drone's flight controller to instruct the drone to return home, and the flight controller sends the instruction to the ground control terminal, and the user knows that the battery is short-circuited and sends the return instruction To the flight controller, the flight controller starts to return home after receiving the return instruction from the ground control terminal.

Specifically, the battery can be discharged to a preset voltage range when the drone returns to home or when the return home is completed, and the battery is controlled to be in a locked state when the drone stops running, thereby improving the safety of the battery and Ensure the flight safety of drones.

It is understandable that if the battery protection strategy also includes a multi-level battery protection strategy, the battery can also be controlled to execute a determined multi-level battery protection strategy.

For example, if the multi-level battery protection strategy corresponding to the determined battery short circuit is the second-level battery protection strategy, the battery can be controlled to enter the self-discharge program to discharge the battery, and/or output a prompt message to remind the user that the battery is unavailable .

In some embodiments, after controlling the battery to execute the battery protection strategy, the battery control method further includes: when detecting that the battery is connected to the movable platform, outputting an alarm message to prompt the user that the battery is short-circuited. Not only can the safety of the battery be ensured, but also the operational safety of the movable platform can be improved.

In some embodiments, when the method is applied to a smart battery, the smart battery itself can accurately and quickly identify whether the battery is short-circuited, and when the battery is short-circuited, the battery protection strategy is used to protect the battery. This method enables the smart battery to execute related protection strategies without user's operation or permission when it recognizes that it has a short circuit, avoiding dangerous situations such as spontaneous combustion of the battery, thereby improving the safety of battery use.

In some embodiments, when the method is used in other electronic devices that communicate with smart batteries, it can accurately and quickly identify whether the battery is short-circuited online, and when the battery is short-circuited, the battery protection strategy is used to protect the battery, and The working state of the electronic device is adjusted so that the electronic device is also in a safe working state, which further avoids the use risk caused by the short-circuit of the battery. For example, when the charger/charging manager is charging/discharging the battery, if it recognizes that the battery is short-circuited, it controls to reduce or stop charging/discharging to improve the safety of the battery. When the battery is supplying power to the mobile platform, if the mobile platform recognizes that the battery is short-circuited, it controls to reduce the discharge current of the battery and/or gives corresponding prompts to improve the safety of the battery. Specifically, the discharge current of the battery can be reduced by restricting the operation of the movable platform, for example, adjusting the rotation speed of the motor, and restricting the camera mounted on the movable platform from shooting.

The battery control methods provided by the foregoing embodiments can accurately and quickly identify whether the battery is short-circuited online, and when the battery is short-circuited, the battery protection strategy is used to protect the battery, thereby improving the safety of battery use.

Existing batteries, such as lithium-ion batteries, often have some internal short-circuits when they are in use, such as micro-shorts, and short-circuits can cause accidents such as battery failure and fire. Due to the accidental occurrence of the internal short circuit of the battery, it is difficult to detect. A short circuit may occur under different working conditions of the battery, which makes it more difficult to detect a short circuit in the battery. At the same time, there are problems such as inability to perform effective protection after the short circuit is detected.

Please refer to FIG. 7, which is a schematic flowchart of steps of another battery control method provided by an embodiment of the present application. The battery control method is applied to smart batteries, which can more accurately identify whether the battery is short-circuited online and perform effective protection.

As shown in FIG. 7, the battery control method includes steps S201 to S205.

S201. Obtain the working status of the battery.

S202: Determine a target parameter according to the working state, and obtain the target parameter of the battery as the battery parameter of the battery;

S203: Determine whether the battery is short-circuited according to the battery parameter;

S204: If the battery has a short circuit, determine the battery protection strategy corresponding to the short circuit of the battery in the multi-level battery protection strategy according to the multi-level battery protection strategy;

S205: Control the battery to execute the battery protection strategy.

Among them, the working state of the battery includes a charging state and a discharging state, and the target parameter is one or more battery parameters related to the working state, that is, different working states need to use different battery parameters to identify whether the battery is short-circuited.

Specifically, the states of the charging switch and the discharging switch in the battery circuit can be detected, and the working state of the battery can be determined according to the states of the charging switch and the discharging switch.

For example, when the charging switch is turned on, it is determined that the working state of the battery is the charging state; the discharging switch is turned on to determine that the working state of the battery is the discharging state; the charging switch is off and the discharging switch is off, and the working state of the battery is determined to be the non-use state.

It should be noted that the micro-control unit can detect and determine the working state of the battery, or the related circuit can send a signal that can characterize the working state of the battery to the micro-control unit, so that the micro-control unit can determine the working state of the battery.

Specifically, after obtaining the working state of the battery, the target parameter is determined according to the working state of the battery, and the target parameter of the battery is obtained as the battery parameter of the battery.

Exemplarily, if the working state of the battery is the charging state, the constant voltage charging time and/or the constant voltage charging capacity are determined as the target parameters according to the charging state; or, if the working state is the discharging state, the charge-discharge capacity ratio is determined according to the discharging state as the target parameter Target parameters.

For example, when the battery is in the charging state, obtain the constant voltage charging time as the target parameter to determine whether the battery is short-circuited; for example, when the battery is in the discharging state, obtain the charge-discharge capacity ratio as the target parameter to determine Whether the battery is short-circuited.

After determining that the battery is short-circuited, determine the battery protection strategy corresponding to the battery's short-circuit, and control the battery to implement the determined battery protection strategy. The battery protection strategy includes at least one of the following: discharging the battery to a preset voltage range corresponding to the safe storage of the battery, and controlling the battery to be in a locked state.

For the battery installed on the movable platform, the battery temperature may be higher due to the short circuit of the battery. And in some cases, such as when an aircraft is flying, the battery cannot be discharged or locked out. Therefore, over-temperature use of the battery will result. Over-temperature use cannot guarantee the flight safety of the aircraft, nor can it guarantee the safety of battery use, and it is more prone to safety accidents.

Therefore, the battery protection strategy includes a preset multi-level temperature protection strategy, the preset multi-level battery protection strategy corresponds to the preset multi-level battery temperature range, and is used to control the battery to execute the battery protection strategy corresponding to the current battery temperature to control the mobile platform Running.

Specifically, after determining that the battery is short-circuited, obtain the current battery temperature of the battery; determine the battery protection strategy corresponding to the current battery temperature according to the current battery temperature and the preset multi-level battery protection strategy; control the mobile platform to perform the determined battery protection Strategy. By controlling the battery to execute a battery protection strategy corresponding to the current battery temperature, the safety of the mobile platform and the battery can be improved.

In some embodiments, the preset multi-level battery protection strategy includes a first-level battery protection strategy, a second-level battery protection strategy, a third-level battery protection strategy, and a fourth-level battery protection strategy; the preset multi-level battery temperature range includes The corresponding first-level battery temperature range, second-level battery temperature range, third-level battery temperature range, and fourth-level battery temperature range.

Among them, the first-level battery temperature range includes below the normal use temperature threshold, the second-level battery temperature range includes between the normal use temperature threshold and the restricted use temperature threshold, and the third-level battery temperature range includes the restricted use temperature threshold and the first impact life. Between the temperature thresholds, and the fourth-level battery temperature range includes the second life-influencing temperature threshold and above.

The preset multi-level battery protection strategy refers to a pre-set, multiple-level strategy for protecting battery safety. The preset multi-level battery protection strategy corresponds to the temperature range of multiple levels of the battery, and is used to control the battery to execute a battery protection strategy corresponding to the current battery temperature to control the operation of the movable platform.

Among them, a preset-level battery protection strategy can include one strategy or more than two strategies; a preset-level battery protection strategy can include battery-related (that is, battery-related) strategies, and can also include mobile platform-related strategies. Related (that is, mobile platform) strategies can also include user-related (that is, user-related) strategies.

In an embodiment, the preset multi-level battery protection strategy includes at least one of the following: controlling the battery to continue normal operation, reducing the discharge current of the battery, issuing an instruction for instructing the mobile platform to prepare to return to home before stopping operation, and telling the user Issue a reminder that the battery is over-temperature recommended to return home, issue a command to control the movable platform to warn the user to return home, issue a serious warning to the user that the battery temperature is recommended to return as soon as possible, record the current discharge temperature of the battery, and lock the battery.

In an application, the battery temperature range of multiple levels includes at least one of the following: below the normal use temperature threshold, between the normal use temperature threshold and the restricted use temperature threshold, between the restricted use temperature threshold and the first life-influencing temperature threshold, The second influence is above the lifetime temperature threshold. In some embodiments, controlling the movable platform to execute the determined battery protection strategy is specifically: if the current battery temperature is below the normal use temperature threshold, controlling the movable platform to continue normal operation. If the movable platform is flying, normal operation includes normal flight mode.

Exemplarily, the mobile platform is controlled to execute a certain battery protection strategy, specifically: if the current battery temperature is between the normal use temperature threshold and the restricted use temperature threshold, the discharge current of the battery is reduced, and the mobile platform is controlled to limit Sexual operation.

Among them, controlling the movable platform to perform restricted operations includes: reducing the discharge current of the battery, and controlling the aircraft to limit the flight attitude.

Exemplarily, restricting the flight attitude includes: controlling the aircraft to restrict variable-speed flight; or, controlling the aircraft to restrict the flying height.

For example, as shown in Figure 8, the flying height of the aircraft is lowered from H1 to H2, and the flying speed of the aircraft is reduced from V1 to V2, and the speed V1 is greater than V2, thereby ensuring the flight safety of the aircraft.

In some embodiments, controlling the movable platform to execute the determined battery protection strategy is specifically: if the current battery temperature is between the limited use temperature threshold and the first life-influencing temperature threshold, controlling the movable platform to execute the first time before stopping operation. A preparatory strategy, wherein the first preparatory strategy is used to make preparations for returning home before the movable platform stops operating.

For example, if the current battery temperature is between the limited use temperature threshold and the life-influencing temperature threshold, the aircraft is controlled to make preparations for returning home, and the user is prompted to return home when the battery is overheated.

In some embodiments, controlling the movable platform to execute the determined battery protection strategy is specifically: if the current battery temperature is above the second life-influencing temperature threshold, controlling the movable platform to execute the second preparatory strategy before stopping operation, wherein, The second preparatory strategy is used to warn the user to return home before the movable platform stops running.

For example, if the current battery temperature is above the second life-influencing temperature threshold, the aircraft is controlled to send a warning to the user that the battery temperature is severe and suggest returning home as soon as possible.

For example, if the current battery temperature is above the second life-influencing temperature threshold, the battery is controlled to record the current discharge temperature of the battery.

Specifically, if the mobile platform stops running and the discharge temperature recorded by the battery is above the second life-influencing temperature threshold, the battery is discharged to a safe storage voltage for storage and/or the battery is locked, so as to prohibit the battery from reusing the battery. Movable platform power supply.

In the embodiment of the present application, the normal use temperature threshold includes 65°C, the restricted use temperature threshold includes 75°C, the first life-influencing temperature threshold includes 85°C, and the second life-influencing temperature threshold includes 90°C.

The battery control method provided in the above embodiment can determine the corresponding battery parameters according to the working state of the battery to quickly and accurately determine whether the battery is short-circuited, and adopt corresponding protection after the battery is short-circuited, and when the battery temperature rises When the mobile platform is controlled to execute the corresponding protection strategy, the safety performance of the battery is improved and the safe operation of the mobile platform is ensured.

Please refer to FIG. 9, which is a schematic flowchart of steps of another battery control method provided by an embodiment of the present application. The battery control method is applied to smart batteries.

As shown in FIG. 9, the battery control method includes steps S301 to S305.

S301. Obtain battery parameters of the battery.

S302: Determine whether the battery has a short circuit according to the battery parameter;

S303: If the battery has a short circuit, determine the short circuit degree of the short circuit according to the battery parameter;

S304: Determine a battery protection strategy corresponding to the short circuit of the battery according to the degree of short circuit and the multi-level battery protection strategy;

S305: Control the battery to execute the determined battery protection strategy.

Among them, the multi-level battery protection strategy includes multiple battery protection strategies corresponding to different short-circuit degrees, and each battery protection strategy corresponds to a different protection method.

Wherein, the second-level battery protection strategy includes: controlling the battery to enter a self-discharge procedure to discharge the battery, and/or outputting a prompt message for prompting the user that the battery is unavailable.

Among them, the third-level battery protection strategy includes: controlling the battery to be in a locked state, and/or outputting a prompt message to remind the user that the battery has been scrapped.

Specifically, the degree of short circuit corresponding to the short circuit of the battery can be determined first; and then the battery protection strategy in the multi-level battery protection strategy corresponding to the short circuit can be determined according to the degree of short circuit.

In this way, the battery can be controlled to execute the second-level battery protection strategy, that is, the battery is controlled to enter a self-discharge program to discharge the battery, and/or, to output a prompt message for prompting the user that the battery is unavailable.

Since the battery is installed in the movable platform, it provides power for the movable platform. However, due to the variety of usage scenarios, the movable platform may fall, hit and other accidents. Correspondingly, the battery may also fall, hit, etc. Once the battery is dropped, hit, etc., it will often be squeezed, short-circuited or needled (such as when the battery is installed in a movable device and is strongly squeezed due to the drop or impact of the movable device), which will cause the internal diaphragm to rupture As a result, the positive and negative electrodes of the battery are short-circuited, and a large amount of heat is generated inside the battery in a short time. Due to the limitation of the battery structure, this heat cannot quickly diffuse to the outside of the battery, causing the battery temperature to be too high, thereby triggering the decomposition of the active material and the electrolyte. Combustion leads to thermal runaway, and the battery temperature rises explosively, causing combustion or explosion. Once this type of battery continues to be used, it will bring great safety hazards to users who use the battery, threatening personal and property safety, and once a burning or explosion problem occurs, the battery has burned out, making it difficult to investigate and analyze.

For this kind of problem, the traditional way to deal with this kind of problem is usually to judge whether the battery has been dropped or hit by visual inspection of the battery, or by reminding the battery shell problem or manual to advise the user not to drop the battery or make the battery hit. Do not use batteries that have been dropped or impacted, as this method cannot eliminate potential safety hazards.

It can be seen that accidents such as falling and impact of the movable platform are one of the reasons for the short circuit of the battery. Therefore, the battery control method provided by the embodiment of the present application can protect the battery after it is determined that the battery is short-circuited. Protect the battery before a short circuit occurs.

Specifically, before acquiring the battery parameters of the battery and determining whether the battery has a short circuit according to the battery parameters, the acceleration value of the battery is acquired; according to the acquired acceleration value, it is determined whether the battery has fallen or impacted; if it is determined that the battery has fallen or impacted, then The battery implements a safety strategy, and the safety strategy includes at least one of the following: recording abnormal information, performing abnormal prompts, limiting the charging and discharging of the battery, and controlling the self-discharge of the battery.

Wherein, the battery includes a micro control unit, and the acceleration value of the battery is obtained by the micro control unit. Specifically, the acceleration value of the battery can be detected by a sensing circuit provided in the battery and sent to the micro control unit; or the acceleration value of the movable platform can be obtained by the micro control unit as the acceleration value of the battery. It should be noted that the battery is a smart battery, and the following will take the smart battery as an example for introduction.

By obtaining the acceleration value of the smart battery, and determining whether the smart battery is dropped or impacted, the smart battery 1 can be detected in real time and reliably whether there is a safety hazard, and when the smart battery is determined to have a safety hazard, the smart battery will be implemented with a safety strategy. Therefore, the safety of battery use can be improved, and the occurrence of safety accidents can be reduced.

The obtained acceleration value is at least the acceleration value in the direction of gravity, which can be used for the acceleration value in the direction of gravity to determine whether the smart battery falls. When the movable platform is dropped or impacted, the smart battery carried by it also falls/impacts accordingly, and then it is determined that the movable platform has fallen/impacted. This can be used as a basis for judging the liability problem caused by the mobile platform bomber, which is helpful to determine whether the bomber is caused by the drop/impact of the movable platform, or the bomber caused by the abnormal output power of the battery itself, or it can be The battery circuit caused by the mobile platform bomber is waiting for you.

Specifically, it is determined whether the acceleration value of the smart battery in the direction of gravity continuously exceeds a predetermined threshold within a predetermined time, and if so, it is determined that the smart battery has fallen.

In addition, it can also be determined whether the change value of the acceleration value of the smart battery in any direction within a preset time exceeds a preset threshold, and if so, it is determined that the smart battery has an impact.

The abnormal information may include information related to the impact event (such as impact time, etc.). In this way, if a safety accident occurs in the future, the cause of the battery safety accident can be traced based on the abnormal information.

In some embodiments, when it is determined that the smart battery has an impact, a safety policy is executed on the smart battery, and the safety policy may include an abnormal prompt. For example, audible and/or visual safety prompts are issued when it is determined that the smart battery has an impact to remind the user.

Correspondingly, the smart battery may also include an audible and/or visual device (such as a speaker and/or a display) to present audible and/or visual safety prompts to the user.

In some embodiments, when it is determined that the smart battery has an impact, a safety policy is executed on the smart battery, and the safety policy may include restricting the charging and discharging use of the smart battery.

Exemplarily, restricting the charging and discharging use of the smart battery may include at least one of the following: limiting the number of charging and discharging of the smart battery, limiting the time for each charging and discharging of the smart battery, and prohibiting charging and discharging of the smart battery. It can fundamentally improve the safety of battery use and reduce the occurrence of safety accidents.

In some embodiments, when it is determined that the smart battery has an impact, a safety policy is executed on the smart battery, and the safety policy may include controlling the self-discharge of the smart battery.

Exemplarily, controlling the self-discharge of the smart battery may send out at least one of the following prompts: strengthen maintenance, keep clean, and keep dry. In this embodiment, the smart battery may also include an audible and/or visual device (such as a speaker and/or a display) to present the prompt to the user.

Of course, in addition to whether there is an impact or a drop, the smart battery can also record other information during use, such as discharge current, battery temperature, etc., so that after identifying the battery short circuit, the cause of the short circuit can be analyzed and located, and the cause of the short circuit can be determined. For example, it is caused by impact or falling of the movable platform, or caused by internal reasons of the battery.

The battery control method provided in the above embodiment can not only identify when a short circuit occurs in the battery according to the battery parameters of the battery, but also further determine the degree of short circuit according to the battery parameters, and then determine the corresponding battery protection strategy according to the degree of short circuit and the multi-level battery protection strategy. This realizes multi-level protection of the battery. In addition, the corresponding safety strategy can be implemented when the battery may be short-circuited. In turn, more effective protection of the battery is realized, and the safety performance of the battery is improved.

Please refer to FIG. 10, which is a schematic block diagram of a smart battery provided by an embodiment of the present application. The smart battery includes a processor 401, a memory 402, a battery cell 403, and a battery circuit 404. The battery circuit 404 is connected to the battery cell 403, and the battery circuit 404 is also connected to the processor 401 for controlling battery charging or discharging.

Specifically, the processor 401 may be a micro-controller unit (MCU), a central processing unit (CPU), a digital signal processor (Digital Signal Processor, DSP), or the like.

Specifically, the memory 402 may be a Flash chip, a read-only memory (ROM, Read-Only Memory) disk, an optical disk, a U disk, or a mobile hard disk.

Wherein, the processor is configured to run a computer program stored in a memory, and when executing the computer program, implement any battery control method as provided in the embodiments of the present application.

Exemplarily, the processor is configured to run a computer program stored in a memory, and implement the following steps when the computer program is executed:

Obtain the battery parameters of the battery; determine whether the battery has a short circuit according to the battery parameters; if the battery has a short circuit, determine the short circuit degree of the short circuit according to the battery parameter; according to the short circuit degree and the multi-level battery A protection strategy determines a battery protection strategy corresponding to a short circuit of the battery, the multi-level battery protection strategy includes a plurality of battery protection strategies corresponding to different short circuit degrees; and controls the battery to execute the determined battery protection strategy.

In some embodiments, the multi-level battery protection strategy includes at least one of the following: a first-level battery protection strategy, a second-level battery protection strategy, and a third-level battery protection strategy;

Wherein, the first-level battery protection strategy includes: outputting prompt information for prompting the user to return for repair and maintenance; the second-level battery protection strategy includes: controlling the battery to enter a self-discharge program to discharge the battery, and/ Or, output prompt information for prompting the user that the battery is unavailable; the third-level battery protection strategy includes: controlling the battery to be in a locked state, and/or, outputting prompt information for prompting the user that the battery is scrapped Prompt information.

In some embodiments, the processor implementing the determination of the short-circuit degree of the short-circuit according to the battery parameter includes:

The degree of difference between the battery parameter and the standard parameter is determined, and the degree of short circuit is determined according to the degree of difference.

In some embodiments, after the processor implements the control of the battery to execute the battery protection strategy, it further implements:

When it is detected that the battery is connected to the movable platform, an alarm message is output to remind the user that the battery is short-circuited.

In some embodiments, the battery parameter includes at least one of a constant voltage charging time, a constant voltage charging capacity, and a charge-discharge capacity ratio.

In some embodiments, before the processor implements the acquisition of the battery parameters of the battery, it further implements:

Obtaining the working state of the battery, and determining a target parameter according to the working state, where the target parameter is one or more battery parameters related to the working state; the obtaining the battery parameter of the battery includes: obtaining The target parameter of the battery is used as the battery parameter of the battery.

In some embodiments, the processor implementing the determination of the target parameter according to the working state includes:

If the working state is the charging state, the constant voltage charging time and/or the constant voltage charging capacity are determined as the target parameters according to the charging state; or if the working state is the discharging state, the charge-discharge capacity ratio is determined according to the discharging state As the target parameter.

In some embodiments, implementing the processor to determine whether the battery has a short circuit according to the battery parameter includes:

Obtain the standard parameters of the battery, and determine whether the battery has a short circuit according to the difference between the battery parameters and the standard parameters.

In some embodiments, implementing the processor to determine whether the battery has a short circuit based on the difference between the battery parameter and the standard parameter includes:

Determine whether the difference between the battery parameter and the standard parameter is within a preset range; if the difference is within the preset range, determine that the battery does not have a short circuit; if the difference is not within the preset range Within the range, it is determined that the battery is short-circuited.

In some embodiments, the standard parameter includes a standard constant voltage charging time; the processor implementing the determination of whether the battery has a short circuit according to the difference between the battery parameter and the standard parameter includes:

It is determined whether the constant voltage charging time is greater than the standard constant voltage charging time; if the constant voltage charging time is greater than the standard constant voltage charging time, it is determined that the battery is short-circuited.

In some embodiments, the standard parameter includes a standard constant voltage charging capacity; the processor implementing the determination of whether the battery has a short circuit according to the difference between the battery parameter and the standard parameter includes:

It is determined whether the constant voltage charging capacity is greater than the standard constant voltage charging capacity; if the constant voltage charging capacity is greater than the standard constant voltage charging capacity, it is determined that the battery has a short circuit.

In some embodiments, the standard parameter includes a standard charge-discharge capacity ratio; the processor implementing the determination of whether the battery has a short circuit based on the difference between the battery parameter and the standard parameter includes:

It is determined whether the charge-discharge capacity ratio is greater than the standard charge-discharge capacity ratio; if the charge-discharge capacity ratio is greater than the standard charge-discharge capacity ratio, it is determined that the battery has a short circuit.

In some embodiments, implementing, by the processor, the obtaining of battery parameters of the battery includes:

Acquire the corresponding charging voltage and charging time when the battery is being charged, and the charging voltage and charging time are used to represent battery parameters of the battery.

Determine whether the battery is short-circuited according to the corresponding charging voltage and the charging time when the battery is being charged.

In some embodiments, the charging voltage includes at least a constant voltage charging voltage, and the charging time includes at least a constant voltage charging time.

Obtain the battery parameters of the battery; determine whether the battery has a short circuit according to the battery parameters; if the battery has a short circuit, determine whether the battery has a short circuit in the multi-level battery protection strategy according to the multi-level battery protection strategy Battery protection strategy corresponding to short circuit.

Acquiring the working state of the battery; determining a target parameter according to the working state, the target parameter being one or more battery parameters related to the working state;

The obtaining the battery parameter of the battery includes: obtaining the target parameter of the battery as the battery parameter of the battery.

Obtain the standard parameters of the battery; determine whether the battery has a short circuit according to the difference between the battery parameters and the standard parameters.

In some embodiments, the standard parameter includes a standard constant voltage charging time;

The implementation of the processor to determine whether the battery has a short circuit according to the difference between the battery parameter and the standard parameter includes:

In some embodiments, the standard parameter includes a standard constant voltage charging capacity;

In some embodiments, the standard parameter includes a standard charge-discharge capacity ratio;

In some embodiments, implementing the processor to control the battery to execute the battery protection strategy includes:

Output prompt information for prompting the user that the battery is short-circuited; and/or the battery is discharged through a preset discharge resistance and discharged to the preset voltage range; and/or, the battery is controlled The charging switch and the discharging switch are in an off state, so that the battery is in the locked state.

In some embodiments, the battery protection strategy includes a multi-level battery protection strategy; each level of the battery protection strategy in the multi-level battery protection strategy has a different protection method, and each level of the battery protection strategy corresponds to a short circuit The degree is also different.

In some embodiments, the processor implementing the determination of the battery protection strategy corresponding to the short circuit includes:

Determine the short-circuit degree of the short-circuit; determine the multi-level battery protection strategy corresponding to the short-circuit according to the short-circuit degree.

In some embodiments, the determining, by the processor, of the degree of the short circuit includes:

As shown in FIG. 1, an embodiment of the present application also provides a charging system. The charging system 100 includes a smart battery 10 and a charger 20, and the charger 20 is used to charge the smart battery 10. The smart battery can realize the protection of the battery when the battery is short-circuited, thereby improving the safety of the battery.

As shown in FIG. 11, another embodiment of the present application also provides a movable component. The movable component 500 includes a movable platform 501 and a smart battery 502. The smart battery 502 is any one of the smart batteries provided in the above embodiments, which can realize the protection of the battery when the battery is short-circuited, thereby improving the safety of the battery.

The smart battery 502 is used to supply power to the movable platform 501 and the load on the movable platform 501. The smart battery 502 can be fixedly installed on the movable platform 501 or detachably installed on the movable platform 501.

The embodiments of the present application also provide a computer-readable storage medium, the computer-readable storage medium stores a computer program, the computer program includes program instructions, and the processor executes the program instructions to implement the foregoing implementation The steps of the battery control method provided in the example.

Wherein, the computer-readable storage medium may be an internal storage unit of the device described in any of the foregoing embodiments, for example, the memory or internal memory of the smart battery. The computer-readable storage medium may also be an external storage device of the smart battery, such as a plug-in hard disk equipped on the removable platform, a smart memory card (Smart Media Card, SMC), and a secure digital (Secure Digital, SD) card, flash card (Flash Card), etc.

The above are only specific implementations of this application, but the protection scope of this application is not limited to this. Anyone familiar with the technical field can easily think of various equivalents within the technical scope disclosed in this application. Modifications or replacements, these modifications or replacements shall be covered within the protection scope of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.

Claims

A battery control method, characterized in that it is applied to a battery, and the method includes:

Acquiring battery parameters of the battery;

Determining whether the battery has a short circuit according to the battery parameter;

If the battery is short-circuited, determine the short-circuit degree of the short-circuit according to the battery parameters;

Determining a battery protection strategy corresponding to a short circuit of the battery according to the degree of short circuit and a multi-level battery protection strategy, where the multi-level battery protection strategy includes a plurality of battery protection strategies corresponding to different degrees of short circuit;

The battery is controlled to execute the determined battery protection strategy.
The method according to claim 1, wherein the multi-level battery protection strategy comprises at least one of the following: a first-level battery protection strategy, a second-level battery protection strategy, and a third-level battery protection strategy;

Wherein, the first-level battery protection strategy includes: outputting prompt information for prompting the user to return for repair and maintenance;

The second-level battery protection strategy includes: controlling the battery to enter a self-discharge program to discharge the battery, and/or outputting a prompt message for prompting the user that the battery is unusable;

The third-level battery protection strategy includes: controlling the battery to be in a locked state, and/or outputting prompt information for prompting the user that the battery has been scrapped.
The method of claim 1, wherein the determining the short-circuit degree of the short-circuit according to the battery parameter comprises:

The degree of difference between the battery parameter and the standard parameter is determined, and the degree of short circuit is determined according to the degree of difference.
The method according to claim 1, wherein after the controlling the battery to execute the battery protection strategy, the method further comprises:

When it is detected that the battery is connected to the movable platform, an alarm message is output to remind the user that the battery is short-circuited.
The method according to any one of claims 1 to 4, wherein the battery parameter includes at least one of a constant voltage charging time, a constant voltage charging capacity, and a charge-discharge capacity ratio.
The method according to claim 5, wherein before said obtaining the battery parameters of the battery, the method further comprises:

Acquiring the working state of the battery, and determining a target parameter according to the working state, where the target parameter is one or more battery parameters related to the working state;

The acquiring battery parameters of the battery includes:

Obtain the target parameter of the battery as the battery parameter of the battery.
The method according to claim 6, wherein the determining the target parameter according to the working state comprises:

If the working state is the charging state, determining the constant voltage charging time and/or the constant voltage charging capacity as the target parameter according to the charging state; or

If the working state is the discharging state, the charge-discharge capacity ratio is determined according to the discharging state as the target parameter.
The method according to claim 5, wherein the determining whether the battery has a short circuit according to the battery parameter comprises:

Obtain the standard parameters of the battery, and determine whether the battery has a short circuit according to the difference between the battery parameters and the standard parameters.
The method according to claim 8, wherein the determining whether the battery has a short circuit according to the difference between the battery parameter and the standard parameter comprises:

Determine whether the difference between the battery parameter and the standard parameter is within a preset range;

If the difference is within the preset range, it is determined that the battery is not short-circuited;

If the difference is not within the preset range, it is determined that the battery is short-circuited.
The method according to claim 8, wherein the standard parameter includes a standard constant voltage charging time;

The determining whether the battery has a short circuit according to the difference between the battery parameter and the standard parameter includes:

Determining whether the constant voltage charging time is greater than the standard constant voltage charging time;

If the constant voltage charging time is longer than the standard constant voltage charging time, it is determined that the battery is short-circuited.
The method according to claim 8, wherein the standard parameter includes a standard constant voltage charging capacity;

The determining whether the battery is short-circuited according to the difference between the battery parameter and the standard parameter includes:

Determining whether the constant voltage charging capacity is greater than the standard constant voltage charging capacity;

If the constant voltage charging capacity is greater than the standard constant voltage charging capacity, it is determined that the battery has a short circuit.
The method according to claim 8, wherein the standard parameter includes a standard charge-discharge capacity ratio;

The determining whether the battery has a short circuit according to the difference between the battery parameter and the standard parameter includes:

Determining whether the charge-discharge capacity ratio is greater than the standard charge-discharge capacity ratio;

If the charge-discharge capacity ratio is greater than the standard charge-discharge capacity ratio, it is determined that the battery has a short circuit.
The method according to claim 1, wherein said acquiring battery parameters of said battery comprises:

Acquire the corresponding charging voltage and charging time when the battery is being charged, and the charging voltage and charging time are used to represent battery parameters of the battery.
The method according to claim 13, wherein the determining whether the battery has a short circuit according to the battery parameter comprises:

Determine whether the battery is short-circuited according to the corresponding charging voltage and the charging time when the battery is being charged.
The method according to claim 13, wherein the charging voltage includes at least a constant voltage charging voltage, and the charging time includes at least a constant voltage charging time.
A battery control method, characterized in that the method includes:

Acquiring battery parameters of the battery;

Determining whether the battery has a short circuit according to the battery parameter;

If the battery is short-circuited, determine the battery protection strategy corresponding to the short-circuit of the battery in the multi-level battery protection strategy according to the multi-level battery protection strategy;

Controlling the battery to execute the battery protection strategy.
The method according to claim 16, characterized in that, before said obtaining the battery parameters of the battery, the method further comprises:

Acquiring the working state of the battery;

Determining a target parameter according to the working state, where the target parameter is one or more battery parameters related to the working state;

The acquiring battery parameters of the battery includes:

Obtain the target parameter of the battery as the battery parameter of the battery.
The method according to claim 17, wherein the determining the target parameter according to the working state comprises:

If the working state is the charging state, determining the constant voltage charging time and/or the constant voltage charging capacity as the target parameter according to the charging state; or

If the working state is the discharging state, the charge-discharge capacity ratio is determined according to the discharging state as the target parameter.
The method according to claim 16, wherein the determining whether the battery has a short circuit according to the battery parameter comprises:

Obtaining the standard parameters of the battery;

Determine whether the battery has a short circuit according to the difference between the battery parameter and the standard parameter.
The method according to claim 19, wherein the determining whether the battery has a short circuit according to the difference between the battery parameter and the standard parameter comprises:

Determine whether the difference between the battery parameter and the standard parameter is within a preset range;

If the difference is within the preset range, it is determined that the battery is not short-circuited;

If the difference is not within the preset range, it is determined that the battery is short-circuited.
The method according to claim 19, wherein the battery parameter includes at least one of a constant voltage charging time, a constant voltage charging capacity, and a charge-discharge capacity ratio.
The method according to claim 21, wherein the standard parameter comprises a standard constant voltage charging time;

The determining whether the battery has a short circuit according to the difference between the battery parameter and the standard parameter includes:

Determining whether the constant voltage charging time is greater than the standard constant voltage charging time;

If the constant voltage charging time is longer than the standard constant voltage charging time, it is determined that the battery is short-circuited.
The method according to claim 21, wherein the standard parameter comprises a standard constant voltage charging capacity;

The determining whether the battery has a short circuit according to the difference between the battery parameter and the standard parameter includes:

Determining whether the constant voltage charging capacity is greater than the standard constant voltage charging capacity;

If the constant voltage charging capacity is greater than the standard constant voltage charging capacity, it is determined that the battery has a short circuit.
The method according to claim 21, wherein the standard parameter comprises a standard charge-discharge capacity ratio;

The determining whether the battery has a short circuit according to the difference between the battery parameter and the standard parameter includes:

Determining whether the charge-discharge capacity ratio is greater than the standard charge-discharge capacity ratio;

If the charge-discharge capacity ratio is greater than the standard charge-discharge capacity ratio, it is determined that the battery has a short circuit.
The method according to claim 16, wherein said acquiring battery parameters of said battery comprises:

Acquire the corresponding charging voltage and charging time when the battery is being charged, and the charging voltage and charging time are used to represent battery parameters of the battery.
The method according to claim 25, wherein the determining whether the battery has a short circuit according to the battery parameter comprises:

Determine whether the battery is short-circuited according to the corresponding charging voltage and the charging time when the battery is being charged.
The method according to claim 25, wherein the charging voltage includes at least a constant voltage charging voltage, and the charging time includes at least a constant voltage charging time.
The method according to any one of claims 16 to 27, wherein the controlling the battery to execute the battery protection strategy comprises:

Discharge the battery through a preset discharge resistor and discharge to the preset voltage range; and/or,

The charging switch and the discharging switch of the battery are controlled to be in an off state, so that the battery is in the locked state.
The method according to any one of claims 16 to 27, wherein the battery protection strategy comprises a multi-level battery protection strategy, and the protection mode of each level of the battery protection strategy in the multi-level battery protection strategy is different.
The method according to claim 29, wherein the degree of short circuit corresponding to each battery protection strategy of the multi-level battery protection strategy is different; and/or,

The multi-level battery protection strategy includes at least one of the following: a first-level battery protection strategy, a second-level battery protection strategy, and a third-level battery protection strategy;

Wherein, the first-level battery protection strategy includes: outputting prompt information for prompting the user to return for repair and maintenance;

The second-level battery protection strategy includes: controlling the battery to enter a self-discharge program to discharge the battery, and/or outputting a prompt message for prompting the user that the battery is unusable;

The third-level battery protection strategy includes: controlling the battery to be in a locked state, and/or outputting prompt information for prompting the user that the battery has been scrapped.
The method of claim 29, wherein the determining the battery protection strategy corresponding to the short circuit comprises:

Determine the short-circuit degree of the short-circuit;

A multi-level battery protection strategy corresponding to the short circuit is determined according to the degree of the short circuit.
The method according to claim 31, wherein the determining the short-circuit degree of the short-circuit comprises:

The degree of difference between the battery parameter and the standard parameter is determined, and the degree of short circuit is determined according to the degree of difference.
The method according to claim 16, wherein after the controlling the battery to execute the battery protection strategy, the method further comprises:

When it is detected that the battery is connected to the movable platform, an alarm message is output to remind the user that the battery is short-circuited.
A smart battery, wherein the smart battery includes a processor, a memory, a battery cell, and a battery circuit connected to the battery cell;

The battery circuit is connected to the processor, and is used to control battery charging or discharging;

The memory is used to store a computer program;

The processor is used to execute the computer program and when executing the computer program, implement the following steps:

Acquiring battery parameters of the battery;

Determining whether the battery has a short circuit according to the battery parameter;

If the battery is short-circuited, determine the short-circuit degree of the short-circuit according to the battery parameters;

Determining a battery protection strategy corresponding to the occurrence of a short circuit in the battery according to the degree of short circuit and a multi-level battery protection strategy, where the multi-level battery protection strategy includes a plurality of battery protection strategies corresponding to different degrees of short circuit;

The battery is controlled to execute the determined battery protection strategy.
The smart battery of claim 34, wherein the multi-level battery protection strategy includes at least one of the following: a first-level battery protection strategy, a second-level battery protection strategy, and a third-level battery protection strategy;

Wherein, the first-level battery protection strategy includes: outputting prompt information for prompting the user to return for repair and maintenance;

The second-level battery protection strategy includes: controlling the battery to enter a self-discharge program to discharge the battery, and/or outputting a prompt message for prompting the user that the battery is unusable;

The third-level battery protection strategy includes: controlling the battery to be in a locked state, and/or outputting prompt information for prompting the user that the battery has been scrapped.
The smart battery of claim 34, wherein the processor implementing the determination of the short-circuit degree of the short-circuit according to the battery parameter comprises:

The degree of difference between the battery parameter and the standard parameter is determined, and the degree of short circuit is determined according to the degree of difference.
The smart battery of claim 34, wherein after the processor implements the control of the battery to execute the battery protection strategy, it further implements:

When it is detected that the battery is connected to the movable platform, an alarm message is output to remind the user that the battery is short-circuited.
The smart battery according to any one of claims 34 to 37, wherein the battery parameter includes at least one of a constant voltage charging time, a constant voltage charging capacity, and a charge-discharge capacity ratio.
The smart battery according to claim 38, wherein before the processor implements the obtaining of the battery parameters of the battery, it further implements:

Acquiring the working state of the battery, and determining a target parameter according to the working state, where the target parameter is one or more battery parameters related to the working state;

The acquiring battery parameters of the battery includes:

Obtain the target parameter of the battery as the battery parameter of the battery.
The smart battery of claim 39, wherein the processor implementing the determination of the target parameter according to the working state comprises:

If the working state is the charging state, determining the constant voltage charging time and/or the constant voltage charging capacity as the target parameter according to the charging state; or

If the working state is the discharging state, the charge-discharge capacity ratio is determined according to the discharging state as the target parameter.
The smart battery of claim 38, wherein the processor implementing the determining whether the battery has a short circuit according to the battery parameter comprises:

Obtain the standard parameters of the battery, and determine whether the battery has a short circuit according to the difference between the battery parameters and the standard parameters.
The smart battery of claim 41, wherein the processor implementing the determination of whether the battery has a short circuit based on the difference between the battery parameter and the standard parameter comprises:

Determine whether the difference between the battery parameter and the standard parameter is within a preset range;

If the difference is within the preset range, it is determined that the battery is not short-circuited;

If the difference is not within the preset range, it is determined that the battery is short-circuited.
The smart battery of claim 41, wherein the standard parameter includes a standard constant voltage charging time;

The implementation of the processor to determine whether the battery has a short circuit according to the difference between the battery parameter and the standard parameter includes:

Determining whether the constant voltage charging time is greater than the standard constant voltage charging time;

If the constant voltage charging time is longer than the standard constant voltage charging time, it is determined that the battery is short-circuited.
The smart battery of claim 41, wherein the standard parameter comprises a standard constant voltage charging capacity;

The implementation of the processor to determine whether the battery has a short circuit according to the difference between the battery parameter and the standard parameter includes:

Determining whether the constant voltage charging capacity is greater than the standard constant voltage charging capacity;

If the constant voltage charging capacity is greater than the standard constant voltage charging capacity, it is determined that the battery has a short circuit.
The smart battery of claim 41, wherein the standard parameter comprises a standard charge-discharge capacity ratio;

The implementation of the processor to determine whether the battery has a short circuit according to the difference between the battery parameter and the standard parameter includes:

Determining whether the charge-discharge capacity ratio is greater than the standard charge-discharge capacity ratio;

If the charge-discharge capacity ratio is greater than the standard charge-discharge capacity ratio, it is determined that the battery has a short circuit.
The smart battery of claim 34, wherein the processor implementing the acquisition of battery parameters of the battery comprises:

Acquire the corresponding charging voltage and charging time when the battery is being charged, and the charging voltage and charging time are used to represent battery parameters of the battery.
The smart battery of claim 46, wherein the processor implementing the determining whether the battery has a short circuit according to the battery parameter comprises:

Determine whether the battery is short-circuited according to the corresponding charging voltage and the charging time when the battery is being charged.
The smart battery of claim 46, wherein the charging voltage includes at least a constant voltage charging voltage, and the charging time includes at least a constant voltage charging time.
A smart battery, wherein the smart battery includes a processor, a memory, a battery cell, and a battery circuit connected to the battery cell;

The battery circuit is connected to the processor, and is used to control battery charging or discharging;

The memory is used to store a computer program;

The processor is used to execute the computer program and when executing the computer program, implement the following steps:

Acquiring battery parameters of the battery;

Determining whether the battery has a short circuit according to the battery parameter;

If the battery is short-circuited, determine the battery protection strategy corresponding to the short-circuit of the battery in the multi-level battery protection strategy according to the multi-level battery protection strategy;

Controlling the battery to execute the battery protection strategy.
The smart battery of claim 49, wherein before the processor implements the obtaining of the battery parameters of the battery, it further implements:

Acquiring the working state of the battery;

Determining a target parameter according to the working state, where the target parameter is one or more battery parameters related to the working state;

The acquiring battery parameters of the battery includes:

Obtain the target parameter of the battery as the battery parameter of the battery.
The smart battery of claim 50, wherein the processor implementing the determination of the target parameter according to the working state comprises:

If the working state is the charging state, determining the constant voltage charging time and/or the constant voltage charging capacity as the target parameter according to the charging state; or

If the working state is the discharging state, the charge-discharge capacity ratio is determined according to the discharging state as the target parameter.
The smart battery of claim 49, wherein the processor implementing the determining whether the battery has a short circuit according to the battery parameter comprises:

Obtaining the standard parameters of the battery;

Determine whether the battery has a short circuit according to the difference between the battery parameter and the standard parameter.
The smart battery of claim 52, wherein the processor implementing the determination of whether the battery has a short circuit based on the difference between the battery parameter and the standard parameter comprises:

Determine whether the difference between the battery parameter and the standard parameter is within a preset range;

If the difference is within the preset range, it is determined that the battery is not short-circuited;

If the difference is not within the preset range, it is determined that the battery is short-circuited.
The smart battery of claim 52, wherein the battery parameter includes at least one of a constant voltage charging time, a constant voltage charging capacity, and a ratio of charge-discharge capacity.
The smart battery of claim 54, wherein the standard parameter comprises a standard constant voltage charging time;

The implementation of the processor to determine whether the battery has a short circuit according to the difference between the battery parameter and the standard parameter includes:

Determining whether the constant voltage charging time is greater than the standard constant voltage charging time;

If the constant voltage charging time is longer than the standard constant voltage charging time, it is determined that the battery is short-circuited.
The smart battery of claim 54, wherein the standard parameter comprises a standard constant voltage charging capacity;

The implementation of the processor to determine whether the battery has a short circuit according to the difference between the battery parameter and the standard parameter includes:

Determining whether the constant voltage charging capacity is greater than the standard constant voltage charging capacity;

If the constant voltage charging capacity is greater than the standard constant voltage charging capacity, it is determined that the battery has a short circuit.
The smart battery of claim 54, wherein the standard parameter comprises a standard charge-discharge capacity ratio;

The implementation of the processor to determine whether the battery has a short circuit according to the difference between the battery parameter and the standard parameter includes:

Determining whether the charge-discharge capacity ratio is greater than the standard charge-discharge capacity ratio;

If the charge-discharge capacity ratio is greater than the standard charge-discharge capacity ratio, it is determined that the battery has a short circuit.
The smart battery of claim 49, wherein the processor implementing the acquisition of battery parameters of the battery comprises:

Acquire the corresponding charging voltage and charging time when the battery is being charged, and the charging voltage and charging time are used to represent battery parameters of the battery.
The smart battery of claim 58, wherein the processor implementing the determining whether the battery has a short circuit according to the battery parameter comprises:

Determine whether the battery is short-circuited according to the corresponding charging voltage and the charging time when the battery is being charged.
The smart battery of claim 58, wherein the charging voltage includes at least a constant voltage charging voltage, and the charging time includes at least a constant voltage charging time.
The smart battery according to any one of claims 49 to 60, wherein the processor implementing the control of the battery to execute the battery protection strategy comprises:

Discharge the battery through a preset discharge resistor and discharge to the preset voltage range; and/or,

The charging switch and the discharging switch of the battery are controlled to be in an off state, so that the battery is in the locked state.
The smart battery according to any one of claims 49 to 60, wherein the battery protection strategy comprises a multi-level battery protection strategy; each level of the multi-level battery protection strategy has a different protection mode , And the degree of short circuit corresponding to each level of battery protection strategy is different.
The smart battery of claim 62, wherein the multi-level battery protection strategy comprises at least one of the following: a first-level battery protection strategy, a second-level battery protection strategy, and a third-level battery protection strategy;

Wherein, the first-level battery protection strategy includes: outputting prompt information for prompting the user to return for repair and maintenance;

The second-level battery protection strategy includes: controlling the battery to enter a self-discharge program to discharge the battery, and/or outputting a prompt message for prompting the user that the battery is unusable;

The third-level battery protection strategy includes: controlling the battery to be in a locked state, and/or outputting prompt information for prompting the user that the battery has been scrapped.
The smart battery of claim 62, wherein the processor implementing the determination of the battery protection strategy corresponding to the short circuit comprises:

Determine the short-circuit degree of the short-circuit;

A multi-level battery protection strategy corresponding to the short circuit is determined according to the degree of the short circuit.
The smart battery according to claim 64, wherein said determining, by said processor, the degree of short circuit of said short circuit comprises:

The degree of difference between the battery parameter and the standard parameter is determined, and the degree of short circuit is determined according to the degree of difference.
The smart battery of claim 49, wherein after the processor implements the control of the battery to execute the battery protection strategy, the processor further implements:

When it is detected that the battery is connected to the movable platform, an alarm message is output to remind the user that the battery is short-circuited.
A charging system, characterized by comprising the smart battery according to any one of claims 34 to 66 and a charger, the charger being used to charge the smart battery.
A movable component, characterized by comprising the smart battery according to any one of claims 34 to 66, and a movable platform, the smart battery is used to be installed on the movable platform and used for Said movable platform power supply.
The movable assembly of claim 68, wherein the movable platform comprises an aircraft, a robot, or an unmanned vehicle.
A computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the processor realizes: as in any one of claims 1 to 15 The steps of the battery control method, or the steps of the battery control method according to any one of claims 16 to 33.