Charging method and system based on charging pile

Abstract

A charging method and system based on a charging pile. The method comprises: after the use of a first charging gun to charge a first device stops, looping out to a second charging gun first energy outputted from the first charging gun (S110); and by means of the second charging gun, transmitting to a second charging pile the first energy looped out to the second charging gun, and by means of a third charging gun on the second charging pile, transmitting to a second device the first energy and second energy that is generated by the second charging pile itself, in order to charge the second device (S120).

Description

Charging method and system based on charging pile

[0001] The present application claims priority to the Chinese patent application No. 202410622502.1, filed on May 20, 2024, with the Chinese Patent Office, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of charging piles, for example, to a charging method and system based on charging piles. BACKGROUND

[0003] With the rapid development and increasing popularity of new energy vehicles, the demand for new energy charging piles is also increasing. For example, direct current charging piles and other products have gradually been widely used in the market.

[0004] A prominent problem with direct current charging piles is the lack of effective interaction logic between individuals. When a vehicle completes charging at a direct current charging pile, if the vehicle does not leave in time, the direct current charging pile will be in an idle state. At the same time, the current direct current charging pile resources are still relatively scarce, and users often compete for charging piles. This not only seriously affects the user experience, but also limits the development of new energy vehicles, which may adversely affect the use of new energy vehicles. SUMMARY

[0005] The present application provides a charging method and system based on charging piles to realize the rational use of charging pile electric energy and greatly shorten the charging time.

[0006] The present application provides a charging method based on charging piles, which comprises:

[0007] After stopping using the first charging gun to charge the first device, the first energy output by the first charging gun is circulated to the second charging gun. The first charging gun is configured on the first charging pile and is set to charge the first device. The second charging gun is configured on the second charging pile and is set to charge the first device. The first device supports simultaneous charging using the first charging gun and the second charging gun.

[0008] The first energy circulated to the second charging gun is transmitted to the second charging pile through the second charging gun, and the first energy and the second energy generated by the second charging pile itself are transmitted to the second device through the third charging gun on the second charging pile to charge the second device.

[0009] The present application also provides a charging system based on charging piles, which comprises:

[0010] The domain controller is configured to, after detecting that the first device stops being charged by the first charging gun, instruct the first energy output by the first charging gun to be looped out to the second charging gun, the first charging gun being arranged on the first charging pile and configured to charge the first device, the second charging gun being arranged on the second charging pile and configured to charge the first device, and the first device supporting simultaneous charging by the first charging gun and the second charging gun.

[0011] The domain controller is further configured to instruct the first energy looped out to the second charging gun to be transmitted to the second charging pile through the second charging gun, and the first energy and second energy generated by the second charging pile itself to be transmitted to the second device through the third charging gun on the second charging pile, so as to charge the second device. BRIEF DESCRIPTION OF DRAWINGS

[0012] FIG. 1 is a flowchart of a charging method based on a charging pile according to an embodiment of the present application;

[0013] FIG. 2 is a schematic diagram of a connection relationship among a charging pile, a domain controller and a charging vehicle according to an embodiment of the present application;

[0014] FIG. 3 is a schematic diagram of an energy conversion process among charging guns according to an embodiment of the present application;

[0015] FIG. 4 is a structural schematic diagram of a charging system based on a charging pile according to an embodiment of the present application. DETAILED DESCRIPTION

[0016] Embodiments of the present application will be described below with reference to the accompanying drawings. Although some embodiments of the present application are shown in the drawings, the present application can be implemented in various forms, and should not be interpreted as being limited to the embodiments described herein, but rather, these embodiments are provided to understand the present application. The drawings and embodiments of the present application are for exemplary purposes only, and are not intended to limit the scope of protection of the present application.

[0017] The plurality of steps described in the method embodiment of the present application can be executed in different orders and / or in parallel. In addition, the method embodiment can include additional steps and / or omit the execution of the steps shown. The scope of the present application is not limited in this respect.

[0018] The term "comprising" and variations thereof as used herein are open-ended, that is "including, but not limited to". The term "based on" is "based, at least in part, on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Related definitions will be given in the description below.

[0019] The terms "first", "second", and the like in the present application are only used to distinguish different devices, modules or units, and do not limit the order or interdependence of the functions performed by these devices, modules or units.

[0020] The terms "one", "multiple" in the present application are illustrative and not restrictive, and should be understood as "one or more" unless otherwise indicated in the context.

[0021] The names of the messages or information exchanged between the devices in the embodiments of the present application are only for illustrative purposes, and are not used to limit the scope of the messages or information.

[0022] FIG. 1 is a flowchart of a charging method based on charging piles according to an embodiment of the present application. The embodiment of the present application is applicable to the case of reasonably using charging piles to charge devices. The method can be executed by a charging device based on charging piles, which can be implemented in the form of software and / or hardware, and is generally integrated on any electronic device with network communication function, such as a mobile terminal, a personal computer (PC) or a server.

[0023] As shown in FIG. 1, the charging method based on charging piles according to the embodiment of the present application can include the following processes.

[0024] S110, after stopping using the first charging gun to charge the first device, the first energy output by the first charging gun is circulated to the second charging gun.

[0025] The first charging gun is configured on the first charging pile and is set to charge the first device, the second charging gun is configured on the second charging pile and is set to charge the first device, and the first device supports simultaneous charging by the first charging gun and the second charging gun. The charging pile establishes a connection relationship with the domain controller, and the charging pile reports the use state of the charging gun corresponding to each charging pile to the domain controller, and the domain controller issues an instruction to the charging pile; the use state can include information such as whether the charging gun is in charging, charging output power, and charging duration. The device can be a charging vehicle with two charging ports, i.e., a vehicle supporting double-gun charging.

[0026] Optionally, when the first energy output by the first charging gun is circulated to the second charging gun, it further includes: if it is detected that the fourth charging gun is stopped for charging the device, the energy to be output by the fourth charging gun allocated on the first charging pile is converted to the first charging gun for output, so as to ensure that the energy on the charging pile is fully utilized, and the fourth charging gun is another charging gun configured on the first charging pile except the first charging gun.

[0027] As an optional but non-limiting implementation, the first energy output by the first charging gun is looped out to the second charging gun, including steps A1-A2:

[0028] Step A1, the charging port energy loop-out function of the first device is started.

[0029] Wherein, the device can be a new energy vehicle with two charging ports, i.e. a vehicle supporting double-gun charging. When the charging vehicle is not fully charged, the two charging ports can be used as energy input to charge the charging vehicle, accelerating the charging progress and shortening the charging time. When the charging vehicle is fully charged, the charging port energy loop-out function of the charging vehicle is started, i.e. the two charging ports can be connected and conducted using a relay or contactor, realizing physical connection, so that the energy input by the charging port 1 can be transmitted to the charging port 2 for output, without passing through the battery of the charging vehicle, accelerating the charging progress and shortening the charging time.

[0030] For example, in response to the charging port energy loop-out start instruction sent by the domain controller, the charging port energy loop-out function of the first device is started. The domain controller is configured to send a charging port energy loop-out start instruction for controlling the first charging pile and the second charging pile to cooperate to charge the second device after detecting that the second device is being charged and that the first charging gun of the first charging pile and the second charging gun of the second charging pile are in a state of stopping charging the first device.

[0031] Step A2, based on the started charging port energy loop-out function of the first device, the first energy output by the first charging gun to the first charging port of the first device is looped out to the second charging gun of the second charging port of the first device.

[0032] For example, as shown in FIGS. 2 and 3, the DC charging pile 1, the DC charging pile 2, the DC charging pile 3 and the domain controller establish a connection relationship, the DC charging pile 1, the DC charging pile 2, the DC charging pile 3 report the use state of each charging gun to the domain controller, and the domain controller can issue a command to control the DC charging pile to output energy; if the maximum output power of the DC charging pile 1, the DC charging pile 2 and the DC charging pile 3 is 120KW, if the maximum output power of each charging gun is 60KW when the DC charging pile double-gun works simultaneously, if the maximum output power of each charging gun is 120KW when the DC charging pile single-gun works, and the charging vehicle supports double-gun charging;

[0033] If the direct current charging pile 1 is the first charging pile, the direct current charging pile 2 is the second charging pile, the charging gun 2 is the first charging gun, the charging gun 3 is the second charging gun, the charging gun 4 is the third charging gun, the charging vehicle 1 is the first device, and the charging vehicle 2 is the second device, if the charging gun 2 and the charging gun 3 charge the charging vehicle 1 at this time, the charging gun 4 and the charging gun 5 charge the charging vehicle 2, if the charging vehicle 1 is charged, the charging gun 2 and the charging gun 3 first exit the charging and become idle, the charging output power of the charging gun 4 is changed from 60KW to 120KW, and the domain controller is informed that the charging gun 2 and the charging gun 3 are charged and have become idle, the domain controller issues the first energy output by the charging gun 2 to the charging gun 3, the charging gun 2 outputs 120KW of the first energy, and the charging gun 3 receives 120KW of the first energy and inputs to the direct current charging pile 2.

[0034] The technical scheme of the embodiment starts the charging port energy loop-out function of the first device, based on the started charging port energy loop-out function of the first device, the first energy output by the first charging gun to the first charging port of the first device is looped out to the second charging gun of the second charging port of the first device, and the energy on the charging pile is fully utilized, and the charging time of the device is shortened.

[0035] S120, the first energy looped out to the second charging gun is transmitted to the second charging pile through the second charging gun, and the first energy and the second energy generated by the second charging pile itself are transmitted to the second device through the third charging gun on the second charging pile to charge the second device.

[0036] For example, as shown in FIG. 2, the direct current charging pile 1 is the first charging pile, the direct current charging pile 2 is the second charging pile, the charging gun 2 is the first charging gun, the charging gun 3 is the second charging gun, the charging gun 4 is the third charging gun, the charging vehicle 1 is the first device, and the charging vehicle 2 is the second device, when the charging vehicle 1 is charged, the domain controller issues the first energy output by the charging gun 2 to the charging gun 3, the charging gun 2 loops out the first energy, the charging gun 3 receives the first energy and inputs to the direct current charging pile 2, the direct current contactor inside the direct current charging pile 2 is switched, the first energy and the second energy generated by the second charging pile itself are transmitted to the charging vehicle 2 through the charging gun 4 on the direct current charging pile 2 to charge the charging vehicle 2.

[0037] As an optional but non-limiting implementation, the transmission of the first energy and the second energy generated by the second charging pile to the second device through the third charging gun on the second charging pile comprises: superimposing the first energy and the second energy generated by the second charging pile through a DC contactor in the second charging pile, and transmitting the superimposed energy to the second device through the third charging gun on the second charging pile. Wherein, the first charging pile and the second charging pile are DC charging piles.

[0038] For example, as shown in FIG. 2 and FIG. 3, the DC charging pile 1 is the first charging pile, the DC charging pile 2 is the second charging pile, the charging gun 2 is the first charging gun, the charging gun 3 is the second charging gun, the charging gun 4 is the third charging gun, the charging vehicle 1 is the first device, and the charging vehicle 2 is the second device. When the charging of the charging vehicle 1 is completed, the domain controller issues the first energy output by the charging gun 2 to the charging gun 3, the charging gun 2 outputs 120KW of first energy, the charging gun 3 receives 120KW of first energy and inputs it to the DC charging pile 2, the internal DC contactor of the DC charging pile 2 switches, and the DC charging pile 2 outputs 240KW of energy to the charging gun 4 to charge the charging vehicle 2.

[0039] As an optional but non-limiting implementation, when the first energy and the second energy generated by the second charging pile are transmitted to the second device through the third charging gun on the second charging pile, it further comprises: transmitting the third energy generated by the third charging pile to the second device through the fifth charging gun on the third charging pile to cooperate with the third charging gun to charge the second device. Wherein, the second device supports charging by the third charging gun and the fifth charging gun at the same time, and the fifth charging gun is arranged on the third charging pile and is configured to cooperate with the third charging gun to charge the second device.

[0040] For example, when the third energy generated by the third charging pile is transmitted to the second device through the fifth charging gun on the third charging pile, if it is detected that the use of the sixth charging gun for device charging is stopped, the energy allocated to the output through the sixth charging gun on the third charging pile is converted to the fifth charging gun for output. The sixth charging gun is another charging gun arranged on the third charging pile except the fifth charging gun.

[0041] Exemplarily, as shown in FIG. 2 and FIG. 3, the charging vehicle 2 is the second device, the direct-current charging pile 3 is the third charging pile, the charging gun 4 is the third charging gun, the charging gun 5 is the fifth charging gun, the charging gun 6 is the sixth charging gun, the third energy generated by the direct-current charging pile 3 itself is transmitted to the charging vehicle 2 through the charging gun 5 on the direct-current charging pile 3 to cooperate with the charging gun 4 to charge the charging vehicle 2, if it is detected that the charging gun 6 is stopped from being used to charge the device, the energy allocated to be output through the charging gun 6 on the direct-current charging pile 3 is converted to be output through the charging gun 5. The charging gun 5 always outputs 120KW energy to the charging vehicle 2 for power supply, the application can totally use 360KW energy to supply power to the charging vehicle 2, the charging power is greatly improved, the charging time is greatly shortened, and the performance of the direct-current charging pile cluster product is improved.

[0042] Optionally, the domain controller closes the charging port energy loop-out function of the first device after detecting that the charging pile stops charging the second device, and stops the first charging gun from outputting the first energy to the second charging gun, so as to avoid the situation that the first charging pile transmits energy to the second charging pile when the second device has stopped charging.

[0043] Optionally, closing the charging port energy loop-out function of the first device comprises: sending a charging port energy loop-out stop instruction to the first device through the domain controller, and closing the charging port energy loop-out function of the first device in response to the charging port energy loop-out stop instruction sent by the domain controller, and the domain controller is further configured to send a charging port energy loop-out stop instruction for controlling the first charging pile and the second charging pile to stop cooperating to charge the second device after detecting that the second device is stopped from being charged or the first charging gun configured in the first charging pile and the second charging gun configured in the second charging pile need to charge the first device.

[0044] Exemplarily, as shown in FIG. 3, when the charging of the charging vehicle 2 is completed, the charging guns 1 to 6 become idle, and the domain controller is informed that the charging guns 2, 3, 4, 5 of the charging vehicle 2 are completed and have become idle; when the charging guns 1 to 6 are completed, the domain controller sends a charging port energy loop-out switch-off instruction to the charging gun 2 of the direct-current charging pile 1 and the charging gun 3 of the direct-current charging pile 2 to make the charging port energy loop-out of the charging vehicle 1 disconnected.

[0045] The first charging gun is arranged on the first charging pile and is configured to charge the first device, the second charging gun is arranged on the second charging pile and is configured to charge the first device, the first device supports charging by using the first charging gun and the second charging gun at the same time, when the first charging gun stops charging the first device, the first energy output by the first charging gun is looped out to the second charging gun, the first energy looped out to the second charging gun is transmitted to the second charging pile through the second charging gun, and the first energy and the second energy generated by the second charging pile itself are transmitted to the second device through the third charging gun on the second charging pile to charge the second device, so that the second device can use the energy in the first charging pile even if the first device does not leave in time, the rational use of charging pile energy is realized, and the charging time is greatly shortened.

[0046] FIG. 4 is a structural schematic diagram of a charging system based on a charging pile provided by an embodiment of the application, and the embodiment of the application is suitable for the case of reasonably using a charging pile to charge a device.

[0047] As shown in FIG. 4, the charging system based on a charging pile of the embodiment of the application can include a domain controller 210, charging piles 220, and devices 230, and each charging pile 220 has at least two charging guns 221.

[0048] The domain controller 210 is configured to, after detecting that the first charging gun stops charging the first device, instruct the first energy output by the first charging gun to be looped out to the second charging gun, the first charging gun is arranged on the first charging pile and is configured to charge the first device, the second charging gun is arranged on the second charging pile and is configured to charge the first device, and the first device supports charging by using the first charging gun and the second charging gun at the same time.

[0049] The domain controller 210 is further configured to instruct the first energy looped out to the second charging gun to be transmitted to the second charging pile through the second charging gun, and the first energy and the second energy generated by the second charging pile itself to be transmitted to the second device through the third charging gun on the second charging pile to charge the second device.

[0050] On the basis of the above-mentioned embodiment, optionally, the first energy output by the first charging gun is looped out to the second charging gun, including:

[0051] Starting the charging port energy looping out function of the first device;

[0052] Based on the started charging port energy looping out function of the first device, the first energy output by the first charging gun to the first charging port of the first device is looped out to the second charging gun of the second charging port of the first device.

[0053] On the basis of the above-mentioned embodiments, optionally, the charging port energy loop-out function of the first device is started, comprising:

[0054] In response to the charging port energy loop-out starting instruction sent by the domain controller, the charging port energy loop-out function of the first device is started, and the domain controller is configured to send the charging port energy loop-out starting instruction for controlling the first charging pile and the second charging pile to cooperatively charge the second device after detecting that the first charging gun configured on the first charging pile and the second charging gun configured on the second charging pile are in a state of stopping charging the first device and respectively configuring the second device.

[0055] On the basis of the above-mentioned embodiments, optionally, when the first energy output by the first charging gun is looped out to the second charging gun, further comprising:

[0056] If it is detected that the use of the fourth charging gun for device charging is stopped, the energy to be output by the fourth charging gun allocated on the first charging pile is converted to the first charging gun for output, and the fourth charging gun is another charging gun except the first charging gun configured on the first charging pile.

[0057] On the basis of the above-mentioned embodiments, optionally, the first charging pile and the second charging pile are direct current charging piles, and the first energy and the second energy generated by the second charging pile itself are transmitted to the second device through the third charging gun on the second charging pile, comprising:

[0058] The first energy and the second energy generated by the second charging pile itself are superimposed through the direct current contactor in the second charging pile;

[0059] The superimposed energy is transmitted to the second device through the third charging gun on the second charging pile.

[0060] On the basis of the above-mentioned embodiments, optionally, the second device supports simultaneous charging by the third charging gun and the fifth charging gun, and the fifth charging gun is configured on the third charging pile and is configured to cooperate with the third charging gun to charge the second device;

[0061] Correspondingly, when the first energy and the second energy generated by the second charging pile itself are transmitted to the second device through the third charging gun on the second charging pile, further comprising:

[0062] The third energy generated by the third charging pile itself is transmitted to the second device through the fifth charging gun on the third charging pile to cooperate with the third charging gun to charge the second device.

[0063] On the basis of the above-mentioned embodiments, when the third charging pile itself generates the third energy and transmits the third energy to the second device through the fifth charging gun on the third charging pile, the method further comprises the following steps of:

[0064] If it is detected that the sixth charging gun is stopped from charging the device, the energy distributed on the third charging pile and output through the sixth charging gun is converted to the fifth charging gun for output, and the sixth charging gun is another charging gun configured on the third charging pile except the fifth charging gun.

[0065] On the basis of the above-mentioned embodiments, optionally, after the domain controller detects that the charging of the second device is stopped, the domain controller instructs the charging port energy loop-out function of the first device to be closed, and stops the first energy output by the first charging gun from being looped out to the second charging gun.

[0066] On the basis of the above-mentioned embodiments, optionally, the instruction to close the charging port energy loop-out function of the first device comprises the following steps of:

[0067] The domain controller sends a charging port energy loop-out stop instruction to the first device and instructs the charging port energy loop-out function of the first device to be closed, and the domain controller is further configured to send a charging port energy loop-out stop instruction to control the first charging pile and the second charging pile to stop cooperating to charge the second device after detecting that the charging of the second device is stopped or the first charging gun configured on the first charging pile and the second charging gun configured on the second charging pile need to charge the first device.

[0068] The charging system based on the charging pile provided in the embodiments of the present application can execute the charging method based on the charging pile provided in any of the embodiments of the present application, and has the corresponding function modules and effects of executing the charging method based on the charging pile.

[0069] The embodiments of the present application further provide a computer readable storage medium, which stores a computer program, and the computer program is executed by a processor to implement the charging method based on the charging pile.

[0070] Computer program code for carrying out operations of the present application can be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code can execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the latter scenario, the remote computer can be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or the connection can be made to an external computer (for example, through the Internet using an Internet Service Provider).

[0071] The computer program instructions can also be loaded onto a computer or other programmable information processing apparatus to cause a series of operations to be performed on the computer or other programmable information processing apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable information processing apparatus implement the functions / acts specified in the flowchart and / or block diagram block or blocks.

[0072] The units described in the embodiments of the present application can be implemented by software, or by hardware. Among them, the name of the unit does not constitute a limitation to the unit itself in one case. For example, the first obtaining unit can also be described as "a unit for obtaining at least two Internet protocol addresses".

[0073] The functionality described above in this document can be performed, at least in part, by one or more hardware logic components. For example, and without limitation, non- limiting example types of hardware logic components that can be used include Field Programmable Gate Arrays (FPGAs), Application-Specific Integrated Circuits (ASICs), Application-Specific Standard-Products (ASSPs), System-on-a-Chip (SOCs), Complex Programmable Logic Devices (CPLDs), etc.

[0074] In the context of this application, a machine-readable medium can be a tangible medium that contains or stores a program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium can include an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. A machine-readable storage medium includes an electrical connection based on one or more lines of wire, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a flash memory, a fiber optic, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. A storage medium can be a non-transitory storage medium.

[0075] Moreover, while various aspects have been described above, it is to be understood that the application can include many more applications than those described above. Accordingly, the scope of the application should not be limited by the foregoing description, but instead should be given broadest interpretation under the numerously applicable legal principles. Furthermore, although exemplary aspects have been described in some detail, because it would be undue burden to the application to describe all possible combinations of the numerous aspects and implementations, only " representative" examples of possible implementations have been described. Many other implementations will be apparent to those skilled in the art in view of this disclosure. For example, although a number of examples have been described above, the present application can be embodied in many different forms and should not be construed as limited to the specific forms described herein. Characteristic features and / or examples of the present application are set forth in the appended claims. As used in this application, the term "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any implementation described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations. Likewise, the term "embodiment" does not require that all embodiments include

[0076] Although the subject matter has been described in language specific to structural features and / or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.

Claims

1. A charging method based on charging piles, comprising: after stopping charging a first device by using a first charging gun, outputting first energy output by the first charging gun to a second charging gun, wherein the first charging gun is arranged on a first charging pile and is configured to charge the first device, the second charging gun is arranged on a second charging pile and is configured to charge the first device, and the first device supports simultaneous charging by using the first charging gun and the second charging gun; transmitting the first energy output to the second charging gun to the second charging pile through the second charging gun, and transmitting the first energy and second energy generated by the second charging pile to a second device through a third charging gun on the second charging pile, so as to charge the second device.

2. The method of claim 1, wherein, The step of outputting the first energy output by the first charging gun to the second charging gun comprises: starting a charging port energy output function of the first device; based on the started charging port energy output function of the first device, outputting the first energy output by the first charging gun to a first charging port of the first device to a second charging port of the first device and the second charging gun.

3. The method of claim 2, wherein, The step of starting the charging port energy output function of the first device comprises: in response to a charging port energy output start instruction sent by a domain controller, starting the charging port energy output function of the first device, wherein the domain controller is configured to send the charging port energy output start instruction for controlling the first charging pile and the second charging pile to cooperatively charge the second device after detecting that the second device is being charged and that the first charging gun arranged on the first charging pile and the second charging gun arranged on the second charging pile are in a state of stopping charging the first device.

4. The method of claim 1, wherein, The step of outputting the first energy output by the first charging gun to the second charging gun further comprises: in response to detecting that a fourth charging gun is stopped from charging a device, converting energy to be output by the fourth charging gun on the first charging pile to the first charging gun for output, wherein the fourth charging gun is a charging gun other than the first charging gun arranged on the first charging pile.

5. The method of claim 1, wherein, The first charging pile and the second charging pile are direct current charging piles, and the step of transmitting the first energy and the second energy generated by the second charging pile to the second device through the third charging gun on the second charging pile comprises: superimposing the first energy and the second energy generated by the second charging pile through a direct current contactor in the second charging pile; transmitting the superimposed energy to the second device through the third charging gun on the second charging pile.

6. The method of claim 1, wherein, The second device supports simultaneous charging by using the third charging gun and a fifth charging gun, and the fifth charging gun is arranged on a third charging pile and is configured to charge the second device in cooperation with the third charging gun. In the process of transmitting the first energy and the second energy generated by the second charging pile itself to the second device through the third charging gun on the second charging pile, further comprising: transmitting third energy generated by the third charging pile itself to the second device through a fifth charging gun on the third charging pile to cooperate with the third charging gun to charge the second device.

7. The method of claim 6, wherein, In the process of transmitting the third energy generated by the third charging pile itself to the second device through the fifth charging gun on the third charging pile, further comprising: In response to detecting that the device charging using the sixth charging gun is stopped, converting the energy allocated on the third charging pile to be output through the sixth charging gun to the fifth charging gun for output, wherein the sixth charging gun is another charging gun configured on the third charging pile except the fifth charging gun.

8. The method of claim 2, further comprising: after detecting that the charging of the second device is stopped, closing the charging port energy loop-out function of the first device and stopping the loop-out of the first energy output by the first charging gun to the second charging gun.

9. The method of claim 8, wherein, The closing of the charging port energy loop-out function of the first device comprises: sending a charging port energy loop-out stop instruction to the first device through a domain controller; in response to the charging port energy loop-out stop instruction sent by the domain controller, closing the charging port energy loop-out function of the first device, wherein the domain controller is further configured to send a charging port energy loop-out stop instruction to control the first charging pile and the second charging pile to stop cooperating to charge the second device after detecting that the charging of the second device is stopped or the first charging gun configured on the first charging pile and the second charging gun configured on the second charging pile need to charge the first device respectively.

10. The method of claim 1, further comprising: controlling the charging pile to establish a connection relationship with a domain controller and controlling the charging pile to report the use state of each charging gun corresponding to each charging pile to the domain controller, and issuing an instruction to the charging pile through the domain controller; wherein the use state includes whether the charging gun is in charging, charging output power, or charging duration.

11. A charging system based on a charging pile, comprising: a domain controller configured to instruct the loop-out of the first energy output by the first charging gun to the second charging gun after detecting that the charging of the first device using the first charging gun is stopped, wherein the first charging gun is configured on the first charging pile and is configured to charge the first device, the second charging gun is configured on the second charging pile and is configured to charge the first device, and the first device supports charging using the first charging gun and the second charging gun at the same time. The domain controller is further configured to instruct the first energy output by the first charging gun to be transmitted to the second charging pile through the second charging gun, and the first energy and second energy generated by the second charging pile itself to be transmitted to the second device through the third charging gun on the second charging pile to charge the second device.

12. The charging system of claim 11, wherein, The first energy output by the first charging gun is looped out to the second charging gun, including: starting the charging port energy loop-out function of the first device; based on the started charging port energy loop-out function of the first device, the first energy output by the first charging gun to the first charging port of the first device is looped out to the second charging gun of the second charging port of the first device.

13. The charging system of claim 12, wherein, The starting of the charging port energy loop-out function of the first device includes: in response to the charging port energy loop-out starting instruction sent by the domain controller, the charging port energy loop-out function of the first device is started, and the domain controller is configured to send the charging port energy loop-out starting instruction for controlling the first charging pile and the second charging pile to cooperate to charge the second device after detecting that the second device is being charged and the first charging gun configured on the first charging pile and the second charging gun configured on the second charging pile are in a state of stopping charging the first device.

14. The charging system of claim 11, wherein, The domain controller is further configured to: when the first energy output by the first charging gun is looped out to the second charging gun, in response to detecting that the fourth charging gun is stopped for charging the device, instructing the energy to be output by the first charging gun to be converted from the energy to be output by the fourth charging gun allocated on the first charging pile, wherein the fourth charging gun is another charging gun configured on the first charging pile except the first charging gun.

15. The charging system of claim 11, wherein, The first charging pile and the second charging pile are direct current charging piles, and the transmission of the first energy and the second energy generated by the second charging pile itself to the second device through the third charging gun on the second charging pile includes: superimposing the first energy and the second energy generated by the second charging pile itself through a direct current contactor in the second charging pile; transmitting the superimposed energy to the second device through the third charging gun on the second charging pile.

16. The charging system of claim 11, wherein, The second device supports simultaneous charging by the third charging gun and a fifth charging gun, and the fifth charging gun is configured on a third charging pile and is configured to cooperate with the third charging gun to charge the second device; The domain controller is further configured to, when the first energy and the second energy generated by the second charging pile itself are transmitted to the second device through the third charging gun on the second charging pile, instructing the third charging pile to generate third energy through the fifth charging gun on the third charging pile to the second device to cooperate with the third charging gun to charge the second device.

17. The charging system of claim 16, wherein, The domain controller is further configured to, when the third energy generated by the third charging pile itself is transmitted to the second device through the fifth charging gun on the third charging pile, in response to detecting that the device charging using the sixth charging gun is stopped, instruct the energy allocated to the output through the sixth charging gun on the third charging pile to be converted to the output through the fifth charging gun, wherein the sixth charging gun is a charging gun other than the fifth charging gun configured on the third charging pile.

18. The charging system of claim 12, wherein, The domain controller is further configured to, after detecting that the charging of the second device is stopped, instruct the closing of the charging port energy loop-out function of the first device and stop the loop-out of the first energy output by the first charging gun to the second charging gun.

19. The charging system of claim 18, wherein, The closing of the charging port energy loop-out function of the first device comprises: The domain controller is further configured to send a charging port energy loop-out stop instruction to the first device; in response to the charging port energy loop-out stop instruction sent by the domain controller, instruct the closing of the charging port energy loop-out function of the first device, and the domain controller is further configured to, after detecting that the charging of the second device is stopped or the first charging gun configured on the first charging pile and the second charging gun configured on the second charging pile need to charge the first device, send a charging port energy loop-out stop instruction to control the first charging pile and the second charging pile to stop cooperating to charge the second device.

20. The charging system of claim 11, wherein, The domain controller is further configured to establish a connection relationship with the charging pile, receive the use state of the charging gun corresponding to each charging pile reported by the charging pile, and issue an instruction to the charging pile; wherein the use state includes whether the charging gun is in charging, the charging output power, or the charging duration.

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