WO2020024163A1

WO2020024163A1 - Intelligent battery control method, intelligent battery, and unmanned aerial vehicle

Info

Publication number: WO2020024163A1
Application number: PCT/CN2018/098081
Authority: WO
Inventors: 林茂疆; 田杰
Original assignee: 深圳市大疆创新科技有限公司
Priority date: 2018-08-01
Filing date: 2018-08-01
Publication date: 2020-02-06
Also published as: CN110785909A

Abstract

The present invention provides an intelligent battery control method, an intelligent battery, and an unmanned aerial vehicle. The intelligent battery is separately connected to electric equipment and an extension device. The intelligent battery control method comprises the following steps: receiving a signal identifying instruction of the intelligent battery, a working state parameter of the intelligent battery, and a working state parameter of the extension device; and according to the signal identifying instruction of the intelligent battery, the working state parameter of the intelligent battery, and the working state parameter of the extension device, controlling turning-on or turning-off of a charging/discharging link of the intelligent battery, so as to control the charging/discharging of the intelligent battery. According to the present invention, a user is able to directly connect multiple independent intelligent batteries together, and direct communication is able to be implanted among the multiple connected intelligent batteries, so as to adapt to multiple application scenarios.

Description

Control method of intelligent battery, intelligent battery and unmanned aerial vehicle

Technical field

The present disclosure relates to a control method for a smart battery, a smart battery, and a drone.

Background technique

In the prior art, a design in which a plurality of batteries are connected in parallel to form a large-capacity battery is generally adopted to meet the higher endurance requirements of electric equipment. However, the current battery is not provided with an independent expansion interface, and users cannot directly connect the independent batteries together, and the batteries cannot directly communicate with each other. Therefore, the application scenarios are limited.

Summary of the invention

The technical problem to be solved by the present disclosure is how to provide a control method for a smart battery.

Another technical problem to be solved by the present disclosure is how to provide a smart battery that is easy to connect and has a communication function.

Another technical problem to be solved by the present disclosure is how to provide a drone having the above-mentioned smart battery.

Additional aspects and advantages of the present disclosure will be set forth in part in the following description, and will become apparent in part from the description, or may be learned through the practice of the present disclosure.

To achieve the above objective, the present disclosure adopts the following technical solutions:

According to an aspect of the present disclosure, a method for controlling a smart battery is provided. The smart battery is respectively connected to an electric device and an expansion device. The method for controlling a smart battery includes the following steps: receiving a signal recognition instruction of the smart battery; , The working state parameter of the smart battery and the working state parameter of the expansion device; controlling the according to the signal recognition instruction of the smart battery, the working state parameter of the smart battery and the working state parameter of the expansion device The charging and discharging link of the smart battery is switched on and off to control the charging and discharging of the smart battery.

According to another aspect of the present disclosure, a smart battery is provided for supplying power to a powered device. The smart battery includes a power supply interface, an expansion interface, and a control unit. The power supply interface is connected to the electric device. The expansion interface is connected to an expansion device, and the expansion interface is configured to send a signal identification instruction and a working state parameter of the expansion device to the control unit. The control unit is configured to obtain an operating state parameter of the smart battery, and control charging and discharging of the smart battery according to the signal identification instruction, an operating state parameter of the expansion device, and an operating state parameter of the smart battery. On and off of the link.

According to yet another aspect of the present disclosure, a drone is provided, including a body and a power mechanism. The drone further includes a battery assembly, the battery assembly includes at least one smart battery; the smart battery includes a power supply interface, an expansion interface, and a control unit; and the power supply interface is used to connect with the power device of the drone Connection; the expansion interface is configured to connect with an expansion device, the expansion interface is configured to send a signal identification instruction to the control unit, and is used to send a working state parameter of the expansion device to the control unit; The control unit is configured to obtain an operating state parameter of the smart battery, and control a charging and discharging link of the smart battery according to the signal identification instruction, an operating state parameter of the expansion device, and an operating state parameter of the smart battery. On and off.

It can be known from the above technical solution that the smart battery control method provided by the present disclosure receives and recognizes the smart battery signal recognition instruction, the smart battery working state parameter, and the working state parameter of the expansion device to control the communication of the smart battery charging and discharging link To control the charging and discharging of the smart battery, which can adapt to a variety of application scenarios of the smart battery.

The smart battery provided by the present disclosure includes a power supply interface, an expansion interface, and a control unit. The power supply interface is connected with the electric equipment. The expansion interface is connected to an expansion device, and the expansion interface is configured to send a signal identification instruction and a working state parameter of the expansion device to the control unit. The control unit is configured to obtain the working state parameters of the smart battery, and control the on-off of the charging and discharging link of the smart battery according to the signal recognition instruction, the working state parameters of the expansion device, and the working state parameters of the smart battery. The smart battery provided by the present disclosure has an independently set expansion interface, which is convenient for users to directly connect multiple independent smart batteries together, and also enables direct communication between multiple connected smart batteries, thereby adapting to various application scenarios. .

Further, in one of the embodiments of the present disclosure, when applied to an application scenario in which multiple smart batteries are connected, the present disclosure can preferentially select a smart battery with a high power supply to supply power until each smart battery has the same power, so that The smart battery provided by the present disclosure can meet higher endurance requirements while ensuring power supply safety.

The drone proposed by the present disclosure includes a body, a power mechanism, and a battery assembly, and the battery assembly includes at least one smart battery. The power supply interface is connected to the electric equipment of the drone, so that the battery assembly of the drone has the above-mentioned beneficial effects of the smart battery proposed by the present disclosure, thereby enabling the drone to meet higher endurance requirements while ensuring flight safety. .

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a control flowchart of a method for controlling a smart battery according to an exemplary embodiment;

Fig. 2 is a schematic structural diagram of a smart battery according to an exemplary embodiment;

FIG. 3 is a connection schematic diagram of the smart battery shown in FIG. 2 in a multi-battery connection scenario; FIG.

FIG. 4 is a connection schematic diagram of the smart battery shown in FIG. 2 in a connection scenario of a charging device.

Among them, the reference signs are described as follows:

100. Smart battery;

110. Power supply interface;

120. Expansion interface;

130. Battery switch;

140. control unit;

200. Charging device.

detailed description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments To those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted.

Referring to FIG. 1, an embodiment of the present disclosure discloses a method for controlling a smart battery. The control method may be used to control the smart battery. The smart battery is connected to the power consumption equipment and the expansion device respectively. The control method of the smart battery includes the following steps:

Step S01, receiving a working state parameter of the smart battery;

Step S02, receiving a signal recognition instruction of the smart battery;

Step S03, receiving a working state parameter of the expansion device;

In step S04, according to the signal recognition instruction of the smart battery, the working state parameter of the smart battery and the working state parameter of the expansion device, the on / off of the charging and discharging link of the smart battery is controlled to control the charging and discharging of the smart battery.

Among them, as shown in FIG. 1, the working state parameters of the smart battery, the smart battery signal recognition instruction (sent by the expansion device to the smart battery), and the working state parameters of the expansion device can be received at the same time, or can be received in any order, that is, steps The execution order of S01, step S02, and step S03 is not limited in any way, and step S04 may be performed after step S01, step S02, and step S03.

For example, in order to implement the above method, a smart battery may be provided. The smart battery mainly includes a power supply interface, an expansion interface, and a control unit. Specifically, the power supply interface is used to connect with a power-consuming device. The expansion interface is used to connect with an expansion device, which may be, for example, another smart battery or a charging device. The expansion interface can send a signal identification instruction to the control unit, and can send a working state parameter of the expansion device to the control unit. The control unit can obtain the working state parameters of the smart battery, and control the on-off of the charging and discharging link of the smart battery according to the signal recognition instruction, the working state parameters of the expansion device, and the working state parameters of the smart battery.

Further, in this embodiment, the smart battery control method provided by the present disclosure further includes the following steps: the smart battery further includes a signal recognition device, the signal recognition device receives a signal recognition instruction sent by the expansion device, and determines the type of the signal recognition instruction .

When the expansion device includes at least one smart battery, the signal recognition instruction of the expansion device is a first signal recognition instruction, the working state parameters of the smart battery include the output voltage of the smart battery, and the working state parameters of the expansion device include the output of at least one smart battery Voltage. The control method of the smart battery includes receiving a first signal recognition instruction, an output voltage of the smart battery, and an output voltage of at least one smart battery. According to the first signal recognition instruction, the output voltage of the smart battery and the output voltage of at least one smart battery, the on / off of the charge and discharge link of the smart battery is controlled to control the charge and discharge of the smart battery.

Furthermore, when at least two smart batteries are connected in parallel, controlling the on / off of the charge and discharge link of the smart batteries includes: calculating a voltage difference between the at least two smart batteries according to the output voltage of the at least two smart batteries. When the voltage difference is greater than or equal to the first preset voltage threshold, control the charging link of the smart battery on the high output voltage side to be disconnected and connect the discharge link, and control the charging link and discharge chain of the smart battery on the low output voltage side The roads are all disconnected. When the voltage difference is less than the first preset voltage threshold, the discharge links of the multiple smart batteries are controlled to be connected and the charging link is disconnected.

In addition, the smart battery control method may further include the following steps: determining the smart battery connected to the power-consuming device as the main battery, the main battery obtaining the working state parameters of at least two smart batteries, and according to the working state parameters of the at least two smart batteries Control the on-off of the charging and discharging links of at least two smart batteries. It can be understood that when the expansion device connected to the main battery is a smart battery, the smart battery can be connected to another smart battery through the expansion interface again. In this way, the number of smart batteries connected to the power-consuming device is multiple, and multiple The smart battery can supply power to the electric equipment.

It can be understood that the setting of the main battery is not limited to a smart battery connected to a power-consuming device, and an intelligent battery can be designated as the main battery arbitrarily. In another embodiment, the main battery may not be specified, but the working state parameters of the smart batteries may be obtained in each smart battery, and the control of the at least two smart batteries may be controlled according to the working state parameters of the at least two smart batteries. The on-off of the charge-discharge link is not limited in this embodiment.

Furthermore, when the expansion device includes a charging device, the signal identification instruction of the expansion device is a second signal identification instruction, the working state parameters of the smart battery include the output voltage of the smart battery, and the working state parameters of the expansion device include the output voltage of the charging device. . As mentioned above, the control method of the smart battery includes: receiving a second signal identification instruction, the output voltage of the smart battery and the output voltage of the charging device. According to the second signal recognition instruction, the output voltage of the smart battery and the output voltage of the charging device, the on / off of the charge and discharge link of the smart battery is controlled to control the charge and discharge of the smart battery.

Further, controlling the on / off of the charging and discharging link of the smart battery includes: when the output voltage of the smart battery is greater than or equal to a second preset voltage threshold, controlling the charging link of the smart battery to be disconnected and the discharging link to be connected . When the output voltage of the smart battery is less than the second preset voltage threshold, the charging link of the smart battery is controlled to be connected, and the discharging link may be disconnected or connected. That is, the smart battery can disconnect the discharge link while the charging device is charging. At this time, the charging device does not supply power to the electrical equipment while the charging device is charging. The smart battery can also connect the discharging link while the charging device is charging. While the charging device is charging, power is supplied to the electric equipment, which is not limited in this embodiment.

Further, in this embodiment, the power supply interface of the smart battery and the power consumption device may be preferably connected through a power supply bus.

Furthermore, in this embodiment, the power supply bus may be an I2C bus or a UART bus.

Further, in this embodiment, the expansion interface of the smart battery and the expansion device (such as the expansion interface of other smart batteries or the charging interface of the charging device) may be preferably connected through a cascade bus.

Furthermore, in this embodiment, the cascade bus may be a CAN bus.

Further, in this embodiment, a battery switch may be further provided on the smart battery. The battery switch can control the on-off of the charging and discharging links of the smart battery, so that the operator can manually adjust the working status of the smart battery. For example, when multiple smart batteries are connected, the smart battery with high power is controlled by manual operation to give priority to power supply. When all smart batteries have the same charge, turn on all smart batteries to supply power at the same time.

In summary, the smart battery control method provided by the present disclosure receives and recognizes the smart battery's signal recognition instruction, the smart battery's working state parameters, and the expansion device's working state parameters to control the on / off of the charging and discharging link of the smart battery. In order to control the charging and discharging of the smart battery, it can adapt to various application scenarios of the smart battery.

Referring to FIG. 2, an embodiment of the present disclosure further provides a smart battery 100. A schematic structural diagram of a smart battery capable of embodying the principles of the present disclosure is representatively shown in FIG. 2. In this exemplary embodiment, the smart battery 100 proposed in the present disclosure is described by taking an example of a smart battery applied to a drone. Those skilled in the art can easily understand that in order to apply the smart battery proposed by the present disclosure to other electric devices, various modifications, additions, substitutions, deletions, or other changes are made to the following specific implementations. These changes Still within the scope of the principles of the smart battery proposed by this disclosure.

As shown in FIG. 2, in this embodiment, the smart battery 100 proposed by the present disclosure mainly includes a power supply interface 110, an expansion interface 120, and a control unit 140. Specifically, the power supply interface 110 is used to connect with a power-consuming device such as a drone. The expansion interface 120 is used to connect with an expansion device, which may be, for example, another smart battery 100 or a charging device provided by the present disclosure. The expansion interface 120 can send a signal identification instruction to the control unit 140, and can send a working state parameter of the expansion device to the control unit 140. The control unit 140 can obtain the working state parameters of the smart battery 100, and control the on / off of the charging and discharging link of the smart battery 100 according to the signal recognition instruction, the working state parameters of the expansion device, and the working state parameters of the smart battery 100. Through the above design, the smart battery 100 provided by the present disclosure has an independent expansion interface 120, which is convenient for users to directly connect a plurality of independent smart batteries 100 together, and also enables direct connection between a plurality of connected smart batteries 100. Communication to adapt to multiple application scenarios.

In the present embodiment, the extension interface 120 is provided with a signal identification device that can receive a signal identification instruction sent by the extension device and determine the type of the signal identification instruction sent by the extension device.

In succession, referring to FIG. 3, FIG. 3 schematically illustrates a connection diagram of a smart battery 100 capable of embodying the principles of the present disclosure in a multi-battery connection scenario. That is, in the working scenario of the smart battery 100 shown in FIG. 3, the expansion device includes at least one smart battery 100. At this time, the signal identification instruction sent by the expansion device is a first signal identification instruction. The working state parameter of the smart battery 100 is the output voltage of the smart battery 100. The working state parameter of the expansion device is an output voltage of at least one smart battery 100 included in the expansion device. Accordingly, the expansion interface 120 of the smart battery 100 can send a signal identification instruction and an output voltage parameter of another smart battery 100 to the control unit 140. The control unit 140 can obtain the output voltage of the smart battery 100, and control the on / off of the charge and discharge link of the smart battery 100 according to the signal recognition instruction and the output voltage of at least one smart battery 100 included in the expansion device.

When the signal recognition instruction is the first signal recognition instruction, at least two smart batteries 100 are connected in parallel, and the control unit 140 according to the signal recognition instruction and the working state parameters of the expansion device (that is, the at least one smart battery 100 included in the expansion device). Output voltage) and the output voltage of the smart battery 100. The on-off control of the charge and discharge link of each smart battery 100 includes the following: Calculate between at least two smart batteries 100 based on the output voltage of at least two smart batteries 100 When the voltage difference is greater than or equal to the first preset voltage threshold, the control unit 140 controls the charging link of the smart battery 100 on the high output voltage side to be disconnected, the discharge link to be connected, and controls the intelligence on the low output voltage side. Both the charging link and the discharging link of the battery 100 are disconnected. When the voltage difference is less than the first preset voltage threshold, the control unit 140 controls the discharge links of the plurality of smart batteries 100 to be connected and the charging links to be disconnected.

Further, in this embodiment, when the expansion device includes at least one smart battery 100, the smart battery 100 connected to the power-consuming device is configured as a main battery, and the control unit 140 of the main battery can obtain the output of at least two smart batteries 100 Voltage, and controlling the on-off of the charging and discharging links of the at least two smart batteries according to the output voltage of the at least two smart batteries 100. It should be noted that based on the above design, the main battery may be any one of the at least two smart batteries 100. Of course, in other embodiments, the main battery may not be provided, but the control unit 140 in each smart battery 100 may perform the above calculation once.

In succession, referring to FIG. 4, FIG. 4 schematically illustrates a connection diagram of a smart battery 100 capable of embodying the principles of the present disclosure in a connection scenario of a charging device 200. That is, in the working scenario of the smart battery 100 shown in FIG. 4, the expansion device includes at least one charging device 200. At this time, the signal identification instruction sent by the expansion device is a second signal identification instruction. The working state parameters of the smart battery 100 include an output voltage of the smart battery 100. The operating state parameters of the expansion device include the output voltage of the charging device 200. The control unit 140 controls the on-off control of the charging and discharging link of the smart battery 100 according to the signal recognition instruction, the output voltage of the charging device 200 and the output voltage of the smart battery 100. The control unit 140 includes the following: when the output voltage of the smart battery 100 is greater than or equal to the second When the voltage threshold is preset, the control unit 140 controls the charging link of the smart battery 100 to be disconnected and the discharging link to be connected. When the output voltage of the smart battery 100 is less than the second preset voltage threshold, the control unit 140 controls the charging link of the smart battery 100 to be connected and the discharging link to be disconnected or connected. That is, the smart battery 100 can disconnect the discharge link while the charging device 200 is charging, and at this time, the charging device 200 does not supply power to the electrical equipment while charging; the smart battery 100 can also discharge the chain while the charging device 200 is charging. It is connected at this time. At this time, the charging device 200 is charged while supplying power to the electric equipment, which is not limited in this embodiment.

Further, in this embodiment, in order to prevent the mutual charging of the smart batteries 100 with different power levels when cascaded, the battery may be configured to turn off the charging MOS tube on the protection board in the default state and set the charging device on the charging device. When 200 is inserted into the expansion interface 120, the charging MOS tube is immediately turned on for charging.

Further, in this embodiment, the power supply interface 110 of the smart battery 100 and a power-consuming device such as a drone may be preferably connected through a power supply bus.

Further, in this embodiment, the expansion interface 120 of the smart battery 100 and the expansion device (such as the expansion interface 120 of the other smart battery 100 or the charging interface of the charging device 200) may be preferably connected through a cascade bus.

Furthermore, in this embodiment, the cascade bus may be a CAN bus.

Further, in this embodiment, the smart battery 100 may further be provided with a battery switch 130. The battery switch 130 can control the on-off of the charging and discharging link of the smart battery 100, so that the operator can manually adjust the working state of the smart battery 100. For example, when multiple smart batteries 100 are connected, the smart battery with high power is controlled by manual operation. 100 gives priority to power supply, until all smart batteries 100 have the same power, all smart batteries 100 are turned on at the same time to supply power.

Further, as shown in FIG. 2, in this embodiment, when the expansion interface 120 is disposed on one end of the smart battery 100, the power supply interface 110 is preferably disposed on the other end of the smart battery 100. For example, the expansion interface 120 may be disposed on the top of the smart battery 100, and the power supply interface 110 may be disposed on the bottom of the smart battery 100. In this way, it is convenient for the smart battery 100 to be connected to the power-consuming device, and connected to the expansion device through the expansion interface 120 in a superimposed manner. It can be understood that the positions of the expansion interface 120 and the power supply interface 110 in this embodiment are merely exemplary descriptions, and are not limited.

Further, as shown in FIG. 2, in this embodiment, when the power supply interface 110 is disposed at one end of the smart battery 100, the battery switch 130 is preferably disposed at the other end of the smart battery 100. For example, the power supply interface 110 may be provided on the bottom of the smart battery 100, and the battery switch 130 may be provided on the top of the smart battery 100. In other embodiments, the battery switch 130 may be disposed at other positions of the smart battery 100, such as a side.

It should be noted here that the smart battery shown in the drawings and described in this specification is only one example of many kinds of smart batteries that can adopt the principles of the present disclosure. It should be clearly understood that the principles of the present disclosure are by no means limited to any details of the smart battery or any component of the smart battery shown in the drawings or described in this specification.

In summary, the smart battery proposed by the present disclosure includes a “smart battery including a power supply interface, an expansion interface, and a control unit. The power supply interface is connected to a power-consuming device. The expansion interface is connected to an expansion device, and the expansion interface is configured to send a signal for identification The command and the working state parameters of the expansion device are sent to the control unit. The control unit is configured to obtain the working state parameters of the smart battery, and control the charging and discharging of the smart battery according to the signal recognition instruction, the working state parameters of the expansion device, and the working state parameters of the smart battery. The design of “on-off of the link” makes the smart battery provided by the present disclosure have an independently set expansion interface, which is convenient for users to directly connect multiple independent smart batteries together, and also enables multiple connected smart batteries to Achieve direct communication to adapt to multiple application scenarios.

Further, when applied to an application scenario in which multiple smart batteries are connected, the present disclosure can preferentially select a smart battery with a high power supply, and supply power simultaneously when the power of each smart battery is the same, so that the smart battery proposed by the present disclosure can guarantee At the same time of safe power supply, it meets higher endurance requirements.

An embodiment of the present disclosure also discloses a drone that includes a smart battery provided by the present disclosure. Further, in this exemplary embodiment, the unmanned aerial vehicle proposed in the present disclosure is described using an unmanned aerial vehicle as an example. It can be understood that the drone may also be other unmanned vehicles, such as unmanned cars, unmanned ships, and other suitable carriers, which are not limited in this embodiment. Those skilled in the art can easily understand that in order to apply the design of the drone to other types of vehicles, various modifications, additions, substitutions, deletions, or other changes are made to the following specific implementations. These changes are still within the scope of the principles of drones proposed by this disclosure.

In this embodiment, the drone proposed by the present disclosure mainly includes a body, a power mechanism, and a battery assembly. The battery assembly includes at least one smart battery 100, and the smart battery 100 is a smart battery 100 proposed in the present disclosure and exemplarily described in the above embodiments. The power supply interface 110 of the smart battery 100 is connected to the electric device of the drone, and is used to supply power to the drone. For example, electric equipment for drones includes power mechanisms. It can be understood that the power consumption equipment of the drone is not limited to the power mechanism, and may also include other power consumption equipment, such as a PTZ, a PTZ load, a sensing device, etc. At this time, the smart battery 100 may be used for part or all of the drone. Powered by electrical equipment. The charging and discharging process of the smart battery is as described above, and is not repeated here.

It should be noted here that the drones shown in the drawings and described in this specification are just one example of many types of drones capable of employing the principles of the present disclosure. It should be clearly understood that the principles of the present disclosure are by no means limited to any details of the drone or any component of the drone shown in the drawings or described in this specification.

In summary, the unmanned aerial vehicle proposed by the present disclosure has a design that “the battery assembly includes at least one intelligent battery. The power supply interface is connected to the power mechanism”, so that the battery assembly of the unmanned aerial vehicle has the above-mentioned beneficial effects of the smart battery proposed by the present disclosure So that the UAV can meet the higher endurance requirements while ensuring flight safety.

Although the present disclosure has been described with reference to several exemplary embodiments, it should be understood that the terminology used is illustrative and exemplary, and not restrictive. Since the present disclosure can be embodied in various forms without departing from the spirit or essence of the invention, it should be understood that the above-mentioned embodiments are not limited to any of the foregoing details, but should be broadly interpreted within the spirit and scope defined by the appended claims. , Therefore, all changes and modifications falling within the scope of the claims or their equivalents shall be covered by the appended claims.

Claims

A method for controlling a smart battery, characterized in that the smart battery is connected to a power consumption device and an expansion device, respectively, and the method for controlling the smart battery includes the following steps:

Receiving a signal identification instruction of the smart battery, a working state parameter of the smart battery, and a working state parameter of the expansion device;

Controlling the on / off of the charging and discharging link of the smart battery according to the signal recognition instruction of the smart battery, the operating state parameter of the smart battery and the operating state parameter of the expansion device, so as to control the charging and discharging of the smart battery Discharge.
The method for controlling a smart battery according to claim 1, further comprising the following steps:

The smart battery further includes a signal identification device that receives a signal identification instruction sent by the expansion device and determines a type of the signal identification instruction.
The method for controlling a smart battery according to claim 2, wherein:

When the extension device includes at least one of the smart batteries, the signal identification instruction of the extension device is a first signal identification instruction;

The working state parameter of the smart battery includes an output voltage of the smart battery;

The working state parameter of the expansion device includes an output voltage of at least one of the smart batteries;

The control method of the smart battery includes:

Receiving the first signal identification instruction, the output voltage of the smart battery, and the output voltage of at least one of the smart batteries;

Controlling the on / off of the charge and discharge link of the smart battery according to the first signal identification instruction, the output voltage of the smart battery, and the output voltage of the smart battery to control the charge and discharge of the smart battery .
The method for controlling a smart battery according to claim 3, wherein:

When at least two of the smart batteries are connected in parallel, controlling the on / off of the charge and discharge link of the smart batteries includes:

Calculating a voltage difference between at least two of the smart batteries according to an output voltage of the at least two of the smart batteries;

When the voltage difference is greater than or equal to the first preset voltage threshold, controlling the charging link of the smart battery on the high output voltage side to be disconnected and the discharge link to be connected, and controlling the smart battery on the low output voltage side Both the charging and discharging links are disconnected;

When the voltage difference is less than the first preset voltage threshold, controlling the discharge links of a plurality of the smart batteries to communicate and disconnect the charging links.
The method for controlling a smart battery according to claim 3, further comprising the following steps:

Determining that the smart battery connected to the electric device is a main battery;

The main battery obtains the working state parameters of at least two of the smart batteries, and controls the on-off of the charging and discharging links of at least two of the smart batteries according to the working state parameters of at least two of the smart batteries.
The method for controlling a smart battery according to claim 2, wherein:

When the expansion device includes a charging device, the signal recognition instruction of the expansion device is a second signal recognition instruction, the working state parameters of the smart battery include the output voltage of the smart battery, and the working state parameters of the expansion device include An output voltage of the charging device;

The control method of the smart battery includes:

Receiving the second signal identification instruction, the output voltage of the smart battery, and the output voltage of the charging device;

Controlling the on-off of the charge-discharge link of the smart battery according to the second signal recognition instruction, the output voltage of the smart battery and the output voltage of the charging device to control the charge-discharge of the smart battery.
The method for controlling a smart battery according to claim 6, wherein:

Controlling the on / off of the charging and discharging link of the smart battery includes:

When the output voltage of the smart battery is greater than or equal to a second preset voltage threshold, controlling the charging link of the smart battery to be disconnected and the discharge link to be connected;

When the output voltage of the smart battery is less than a second preset voltage threshold, controlling the charging link of the smart battery to be connected and the discharging link to be disconnected or connected.
The method for controlling a smart battery according to claim 1, wherein:

The power supply interface is connected to the power consumption device through a power supply bus.
The method for controlling a smart battery according to claim 8, wherein:

The power supply bus is an I2C bus or a UART bus.
The method for controlling a smart battery according to claim 1, wherein:

The expansion interface is connected to the expansion device through a cascade bus.
The method for controlling a smart battery according to claim 10, wherein:

The cascade bus is a CAN bus.
The method for controlling a smart battery according to claim 1, wherein:

The expansion interface is provided at one end of the smart battery;

The power supply interface is provided at the other end of the smart battery opposite to the end.
The method for controlling a smart battery according to claim 1, wherein:

The smart battery also has a battery switch;

The battery switch is configured to control on / off of a charge / discharge link of the smart battery.
An intelligent battery is used to supply power to electrical equipment, which is characterized by:

The smart battery includes a power supply interface, an expansion interface, and a control unit;

The power supply interface is used to connect with the power consumption device;

The expansion interface is configured to connect with an expansion device, and the expansion interface is configured to send a signal identification instruction to the control unit, and is used to send a working state parameter of the expansion device to the control unit;

The control unit is configured to obtain an operating state parameter of the smart battery, and control charging and discharging of the smart battery according to the signal identification instruction, an operating state parameter of the expansion device, and an operating state parameter of the smart battery. On and off of the link.
The smart battery according to claim 14, wherein:

The extension interface is provided with a signal identification device, and the signal identification device is configured to receive a signal identification instruction sent by the extension device and determine a type of the signal identification instruction.
The smart battery according to claim 15, wherein:

The expansion device includes at least one of the smart batteries, and the signal identification instruction is a first signal identification instruction;

The working state parameter of the smart battery includes an output voltage of the smart battery;

The operating state parameter of the expansion device includes an output voltage of at least one of the smart batteries.
The smart battery according to claim 16, wherein:

At least two of the smart batteries are connected in parallel, and the control unit charges and discharges the link of each of the smart batteries according to the signal recognition instruction, the operating state parameters of the expansion device, and the operating state parameters of the smart battery On-off control includes:

Calculate a voltage difference between at least two of the smart batteries according to the output voltages of at least two of the smart batteries, and when the voltage difference is greater than or equal to a first preset voltage threshold, the control unit controls the high output voltage side The charging link of the smart battery is disconnected, the discharge link is connected, and the charging and discharging links of the smart battery on the low output voltage side are controlled to be disconnected;

When the voltage difference is less than the first preset voltage threshold, the control unit controls the discharge links of a plurality of the smart batteries to be connected and the charging links to be disconnected.
The smart battery according to claim 16, wherein:

The smart battery connected to the power-consuming device is configured as a main battery, and the control unit of the main battery is configured to obtain working state parameters of at least two of the smart batteries, and according to at least two of the smart batteries The working state parameters of the control control the on-off of the charging and discharging links of at least two of the smart batteries.
The smart battery according to claim 15, wherein:

The expansion device includes a charging device, and the signal identification instruction is a second signal identification instruction;

The working state parameter of the smart battery includes an output voltage of the smart battery;

The working state parameter of the expansion device includes an output voltage of the charging device.
The smart battery according to claim 19, wherein:

The control unit's on / off control of the charging and discharging link of the smart battery according to the signal identification instruction, the operating state parameter of the expansion device, and the operating state parameter of the smart battery includes:

When the output voltage of the smart battery is greater than or equal to a second preset voltage threshold, the control unit controls the charging link of the smart battery to be disconnected and the discharge link to be connected;

When the output voltage of the smart battery is less than a second preset voltage threshold, the control unit controls the charging link of the smart battery to be connected and the discharging link to be disconnected or connected.
The smart battery according to claim 14, wherein:

The power supply interface is connected to the power consumption device through a power supply bus.
The smart battery according to claim 21, wherein:

The power supply bus is an I2C bus or a UART bus.
The smart battery according to claim 14, wherein:

The expansion interface is connected to the expansion device through a cascade bus.
The smart battery according to claim 23, wherein:

The cascade bus is a CAN bus.
The smart battery according to claim 14, wherein:

The expansion interface is provided at one end of the smart battery;

The power supply interface is provided at the other end of the smart battery opposite to the end.
The smart battery according to claim 14, wherein:

The smart battery also has a battery switch;

The battery switch is configured to control on / off of a charge / discharge link of the smart battery.
A drone includes a body and a power mechanism, and is characterized by:

The drone further includes a battery assembly, and the battery assembly includes at least one smart battery;

The smart battery includes a power supply interface, an expansion interface, and a control unit;

The power supply interface is used to connect with an electric device of the drone;

The expansion interface is configured to connect with an expansion device, and the expansion interface is configured to send a signal identification instruction to the control unit, and is used to send a working state parameter of the expansion device to the control unit;

The control unit is configured to obtain an operating state parameter of the smart battery, and control charging and discharging of the smart battery according to the signal identification instruction, an operating state parameter of the expansion device, and an operating state parameter of the smart battery. On and off of the link.
The drone according to claim 27, wherein:

The extension interface is provided with a signal identification device, and the signal identification device is configured to receive a signal identification instruction sent by the extension device and determine a type of the signal identification instruction.
The drone according to claim 28, wherein:

The expansion device includes at least one of the smart batteries, and the signal identification instruction is a first signal identification instruction;

The working state parameter of the smart battery includes an output voltage of the smart battery;

The operating state parameter of the expansion device includes an output voltage of at least one of the smart batteries.
The drone according to claim 29, wherein:

At least two of the smart batteries are connected in parallel, and the control unit charges and discharges the link of each of the smart batteries according to the signal recognition instruction, the operating state parameters of the expansion device, and the operating state parameters of the smart battery On-off control includes:

Calculate a voltage difference between at least two of the smart batteries according to the output voltages of at least two of the smart batteries, and when the voltage difference is greater than or equal to a first preset voltage threshold, the control unit controls the high output voltage side The charging link of the smart battery is disconnected, the discharge link is connected, and the charging and discharging links of the smart battery on the low output voltage side are controlled to be disconnected;

When the voltage difference is less than the first preset voltage threshold, the control unit controls the discharge links of a plurality of the smart batteries to be connected and the charging links to be disconnected.
The drone according to claim 29, wherein:

The smart battery connected to the power-consuming device is configured as a main battery, and the control unit of the main battery is configured to obtain working state parameters of at least two of the smart batteries, and according to at least two of the smart batteries The working state parameters of the control control the on-off of the charging and discharging links of at least two of the smart batteries.
The drone according to claim 28, wherein:

The expansion device includes a charging device, and the signal identification instruction is a second signal identification instruction;

The working state parameter of the smart battery includes an output voltage of the smart battery;

The working state parameter of the expansion device includes an output voltage of the charging device.
The drone according to claim 32, wherein:

The control unit's on / off control of the charging and discharging link of the smart battery according to the signal identification instruction, the operating state parameter of the expansion device, and the operating state parameter of the smart battery includes:

When the output voltage of the smart battery is greater than or equal to a second preset voltage threshold, the control unit controls the charging link of the smart battery to be disconnected and the discharge link to be connected;

When the output voltage of the smart battery is less than a second preset voltage threshold, the control unit controls the charging link of the smart battery to be connected and the discharging link to be disconnected or connected.
The drone according to claim 27, wherein:

The power supply interface is connected to the power consumption device through a power supply bus.
The drone according to claim 34, wherein:

The power supply bus is an I2C bus or a UART bus.
The drone according to claim 27, wherein:

The expansion interface is connected to the expansion device through a cascade bus.
The drone according to claim 36, wherein:

The cascade bus is a CAN bus.
The drone according to claim 27, wherein:

The expansion interface is provided at one end of the smart battery;

The power supply interface is provided at the other end of the smart battery opposite to the end.
The drone according to claim 27, wherein:

The smart battery also has a battery switch;

The battery switch is configured to control on / off of a charge / discharge link of the smart battery.