Charging system

Abstract

A charging system, which is configured to provide charging services for a plurality of fixed parking spaces. The system (100) comprises: a charging pile (10), which is provided with a power supply input interface (11); a plurality of power supply interfaces (20), which are arranged corresponding to the plurality of fixed parking spaces on a one-to-one basis; and a power supply device (30), which is configured to output charging electric energy to the plurality of power supply interfaces (20) on the basis of the electric energy of the plurality of power supply sources (200), wherein when the charging pile (10) moves to a target power supply interface and the power supply input interface (11) of the charging pile (10) is connected to the target power supply interface, or when the power supply input interface (11) of the charging pile (10) is extended to the target power supply interface and is connected to the target power supply interface, the charging pile (10) charges, on the basis of the charging electric energy, a vehicle in the target parking space corresponding to the target power supply interface. Therefore, the number of mounted charging piles can be reduced, thereby also reducing costs; in addition, the charging power requirements in different scenarios can be met, thereby ensuring the charging effect of the vehicle.

Description

Charging system

[0001] Cross-reference to related applications

[0002] The present disclosure claims priority to the Chinese patent application No. 202421383007.1, filed on June 17, 2024, entitled “Charging system”, the entire content of which is incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the technical field of charging, in particular to a charging system. BACKGROUND

[0004] At present, in the electric vehicle charging station, one charging pile is configured for one parking space. This installation scheme leads to high initial investment cost of the charging station, and in actual application, the utilization rate of the charging pile is low, and the actual idle rate is high, which leads to a too long investment recovery period and cannot make a profit quickly.

[0005] DISCLOSURE

[0006] In view of the above problems, the present application provides a charging system, which can meet the charging demand of vehicles at different parking spaces based on charging piles, reduce the installation number of charging piles, reduce the cost, and at the same time, based on multiple power supply sources, can meet the charging power demand in different scenarios, and ensure the charging effect of vehicles.

[0007] The present application provides a charging system for providing charging service for multiple fixed parking spaces, the system comprising: a charging pile, the charging pile being provided with a power supply input interface; multiple power supply interfaces, the multiple power supply interfaces being arranged one by one corresponding to the multiple fixed parking spaces; a power supply device, the power supply device being connected with the multiple power supply interfaces and multiple power supply sources, and being configured to output charging electric energy to the multiple power supply interfaces based on the electric energy output of the multiple power supply sources; wherein, in the case that the charging pile moves to a target power supply interface, and the power supply input interface of the charging pile is connected with the target power supply interface, or the power supply input interface of the charging pile is extended to the target power supply interface and connected with the target power supply interface, the charging pile charges the vehicle of the target parking space corresponding to the target power supply interface based on the charging electric energy.

[0008] In the technical scheme of the embodiment of the present application, the plurality of power supply interfaces are arranged in one-to-one correspondence with the plurality of fixed parking spaces, the plurality of power supply interfaces are connected with the plurality of power supply sources through the power supply device, when the vehicle in the target fixed parking space has a charging demand, the charging pile is moved to the target power supply interface corresponding to the target fixed parking space, or the power supply input interface of the charging pile is extended to the target power supply interface, at this time, the vehicle owner connects the power supply input interface of the charging pile with the target power supply interface, and connects the power supply output interface of the charging pile, i.e. the charging gun, with the charging port of the vehicle, so as to charge the vehicle. In the charging process of the vehicle, the plurality of power supply sources establish a charging loop with the vehicle through the power supply device, the target power supply interface and the charging pile, so as to charge the vehicle. In this way, the charging demand of the vehicle at different parking spaces can be met based on the charging pile, the number of installed charging piles is reduced, the cost is reduced, and the charging demand in different scenarios can be met based on the electric energy of the plurality of power supply sources, thereby providing guarantee for the charging effect of the vehicle.

[0009] In some embodiments, the plurality of power supply sources include at least two of an alternating current power grid, an energy storage system and a new energy power generation system. In this way, two or three of the alternating current power grid, the energy storage system and the new energy power generation system are used as the power supply sources in the charging system, so as to meet the charging demand in different scenarios and provide guarantee for the charging effect of the vehicle.

[0010] In some embodiments, when the plurality of power supply sources include the alternating current power grid, the energy storage system and the new energy power generation system, the power supply device includes: a first power conversion unit, one end of the first power conversion unit being connected with the alternating current power grid; a second power conversion unit, one end of the second power conversion unit being connected with the other end of the first power conversion unit, the energy storage system and the new energy power generation system, and the other end of the second power conversion unit being connected with the plurality of power supply interfaces; wherein the charging electric energy is output based on the electric energy of the alternating current power grid, the energy storage system and the new energy power generation system through the first power conversion unit and the second power conversion unit.

[0011] The first power conversion unit is used to convert the alternating current provided by the alternating current power grid into direct current, and the second power conversion unit is used to convert the direct current provided by the first power conversion unit, the new energy power generation system and the energy storage system into target direct current output, so as to provide charging electric energy for the plurality of power supply interfaces. In this way, the electric energy of the alternating current power grid, the energy storage system and the new energy power generation system is converted and output as charging electric energy through the first power conversion unit and the second power conversion unit, so as to meet the charging demand in different scenarios and provide guarantee for the charging effect of the vehicle.

[0012] In some embodiments, the first power conversion unit is a unidirectional ACDC (Alternating Current-Direct Current) conversion unit or a bidirectional ACDC conversion unit; and / or, the second power conversion unit is a unidirectional DCDC (Direct Current-Direct Current) conversion unit or a bidirectional DCDC conversion unit. In this way, unidirectional flow, bidirectional flow or partial bidirectional flow of energy can be achieved, which can be suitable for energy demand in different application scenarios.

[0013] In some embodiments, the power supply input interface and the power supply interface are connected in a plug-in manner, which makes the connection of the power supply input interface and the power supply interface more convenient and reliable, and solves the problems of high difficulty in docking and high contact resistance that cannot meet the high-power charging of electric vehicles in the mode of directly docking the positive and negative poles of the charging pile and the power supply.

[0014] In some embodiments, the power supply input interface is a plug, and the power supply interface is a socket; or, the power supply input interface is a socket, and the power supply interface is a plug. In this way, the power supply input interface and the power supply output interface are connected in a plug-in manner, which makes the connection of the power supply input interface and the power supply interface more convenient and reliable, and solves the problems of high difficulty in docking and high contact resistance that cannot meet the high-power charging of electric vehicles in the mode of directly docking the positive and negative poles of the charging pile and the power supply.

[0015] In some embodiments, the charging system further comprises: a plurality of triggers, which are arranged one-to-one corresponding to the plurality of fixed parking spaces, and are configured to trigger the charging pile to move to the respective corresponding power supply interface; or, configured to trigger the power supply input interface of the charging pile to extend to the respective corresponding power supply interface.

[0016] In the charging system, the trigger, the fixed parking space and the power supply interface are arranged one-to-one. When charging is needed, the trigger is controlled to act to send a trigger signal to the charging pile. The charging pile can determine a target position based on the received trigger signal and move to the target position, or control the power supply input interface to extend to the target position. Then, the vehicle owner connects the power supply input interface of the charging pile with the power supply interface of the target position, and connects the power supply input interface of the charging pile with the charging port of the vehicle to charge the vehicle. The charging pile can realize automatic movement based on the state of the plurality of triggers or control its own power supply input interface to realize automatic extension, so that the charging process is more convenient.

[0017] In some embodiments, the trigger is a parking space information identifier including parking space information, the charging pile is further in communication connection with a terminal device, the terminal device is configured to acquire the parking space information based on the parking space information identifier, and the charging pile is further configured to automatically move to the target power supply interface based on the parking space information of the target parking space sent by the terminal device; or the charging pile is further configured to control its power supply input interface to extend and retract to the target power supply interface based on the parking space information of the target parking space sent by the terminal device.

[0018] The terminal device identifies the parking space information identifier of the target parking space to obtain the parking space information of the target parking space, and sends the parking space information of the target parking space to the charging pile based on wireless communication. The charging pile can automatically move to the target power supply interface of the target parking space or control its power supply input interface to extend and retract to the target power supply interface according to the received parking space information of the target parking space, so that the charging process is more convenient.

[0019] In some embodiments, the parking space information identifier is a bar code or a two-dimensional code. In this way, the terminal device can scan the bar code or the two-dimensional code of the target parking space to obtain the parking space information of the target parking space, and send the parking space information of the target parking space to the charging pile based on wireless communication, so that the charging pile can automatically move to the target power supply interface or control its power supply input interface to extend and retract to the target power supply interface according to the received parking space information, so that the charging process is more convenient.

[0020] In some embodiments, the trigger is a parking space switch, the parking space switch is connected with the charging pile, and the charging pile is further configured to automatically move to the target power supply interface when the state of the parking space switch corresponding to the target parking space is a target state; or the charging pile is further configured to control its power supply input interface to extend and retract to the target power supply interface when the state of the parking space switch corresponding to the target parking space is a target state.

[0021] The parking space switch and the charging pile can be connected by wire or wirelessly. For example, when the parking space switch is a mechanical switch, the mechanical switch is arranged on one side of the corresponding fixed parking space, and the state of the mechanical switch is transmitted to the charging pile by wire. When the parking space switch is an electronic switch, such as a pressure sensor or an infrared sensor, the electronic switch detects the vehicle in the corresponding parking space and sends the detection result to the charging pile by wire or wirelessly. When the charging pile identifies that the state of the parking space switch is a target state, the fixed parking space corresponding to the parking space switch in the target state is taken as the target parking space, and the charging pile automatically moves to the target power supply interface corresponding to the target parking space or controls its power supply input interface to extend and retract to the target power supply interface, so that the charging process is more convenient.

[0022] In some embodiments, the parking space switch comprises at least one of a mechanical switch, a pressure sensor and an infrared sensor. When the charging pile identifies that the state of the parking space switch is the target state, the charging pile determines the target parking space based on the parking space switch, and automatically moves to the target power supply interface corresponding to the target parking space, or controls the power supply input interface of the charging pile to stretch to the target power supply interface, so that the charging process is more convenient.

[0023] In some embodiments, the charging pile is further provided with a sensing device and a moving device, and the charging pile is further configured to control the moving device to automatically move to the target power supply interface based on the surrounding environment information sensed by the sensing device; or the charging pile is further provided with a sensing device and a stretching device, and the charging pile is further configured to control the stretching device to drive the power supply input interface to stretch to the target power supply interface based on the surrounding environment information sensed by the sensing device. The charging pile can automatically move to the target power supply interface through the sensing device and the moving device, or the charging pile can control its own power supply input interface to stretch to the target power supply interface based on the sensing device and the stretching device, without the need for personnel operation, so that the charging process is more convenient.

[0024] In some embodiments, the charging system further comprises a moving route marker provided with a plurality of pile position markers, the plurality of pile position markers are arranged one by one corresponding to the plurality of power supply interfaces, and the charging pile is further configured to control the moving device to automatically move to the target pile position marker corresponding to the target power supply interface based on the surrounding environment information sensed by the sensing device; or the charging pile is further configured to control the stretching device to drive the power supply input interface to stretch to the target pile position marker corresponding to the target power supply interface based on the surrounding environment information sensed by the sensing device. The charging pile can quickly move to the target power supply interface based on the moving route marker, or control its own power supply input interface to quickly stretch to the target power supply interface, which not only improves the moving speed, but also saves the cost without the need for laying guide rails.

[0025] In some embodiments, the number of charging piles is greater than 1 and less than the number of fixed parking spaces. In this way, multiple charging piles can be used to charge multiple vehicles at the same time, meeting the demand for simultaneous charging of multiple vehicles.

[0026] The above description is only a summary of the technical solutions of the present application. In order to more clearly understand the technical means of the present application, the specific embodiments of the present application can be implemented in accordance with the content of the description, and in order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0027] Various other advantages and benefits will become apparent to those of ordinary skill in the art, upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of preferred embodiments and are not intended to limit the scope of the present application. Furthermore, the drawings are included to illustrate embodiments of the application, and, therefore, should not be considered limiting in scope. Wherever possible, like reference numerals have been used throughout the drawings to refer to like components and / or elements. In the drawings:

[0028] Fig. 1 is a connection diagram of a charging system according to some embodiments of the present application;

[0029] Fig. 2 is a connection diagram of a charging system according to some embodiments of the present application;

[0030] Fig. 3 is a connection diagram of a charging system according to some embodiments of the present application;

[0031] Fig. 4 is a structural diagram of a charging pile according to some embodiments of the present application;

[0032] Fig. 5 is a scene diagram of a charging system in an uncharged state according to some embodiments of the present application;

[0033] Fig. 6 is a scene diagram of a charging system in a charged state according to some embodiments of the present application.

[0034] Reference signs: charging system 100, charging pile 10, power supply input interface 11, power supply output interface 12, sensing device 13, mobile device 14, power supply interface 20, power supply device 30, first power conversion unit 31, second power conversion unit 32, trigger 40, mobile route identifier 50, power supply source 200. DETAILED DESCRIPTION

[0035] The embodiments of the technical solutions of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing specific embodiments only and is not intended to be limiting of the present application; the terms "include" and "have" and any variations thereof used in the specification and claims of the present application and the above description of drawings are intended to cover the non-exclusive inclusion.

[0037] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0038] Reference to“an embodiment” herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase“in an embodiment” in various places in the specification are not necessarily referring to the same embodiment, nor are they necessarily mutually exclusive of one another. It is expressly understood that any of the embodiments described herein can be incorporated into any other embodiment.

[0039] In the description of the embodiments of the application, the term“and / or” only means an association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character“ / ” herein generally means that the front and rear associated objects are in an“or” relationship.

[0040] In the description of the embodiments of the application, the term“a plurality of” refers to two or more (including two), and similarly, “a plurality of groups” refers to two or more groups (including two groups), and “a plurality of pieces” refers to two or more pieces (including two pieces).

[0041] In the description of the embodiments of the application, the technical terms“center”,“longitudinal”,“transverse”,“length”,“width”,“thickness”,“upper”,“lower”,“front”,“rear”,“left”,“right”,“vertical”,“horizontal”,“top”,“bottom”,“inner”,“outer”,“clockwise”,“counterclockwise”,“axial”,“radial”,“circumferential” and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the application.

[0042] In the description of the embodiments of the application, unless otherwise explicitly specified and limited, the technical terms“mounting”,“connection”,“connection”,“fixing” and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the application can be understood according to the specific circumstances.

[0043] At present, in the electric vehicle charging station, an installation scheme of configuring one charging pile for one parking space is adopted. This installation scheme leads to high initial investment cost of the charging station, and at the same time, in actual application, the utilization rate of the charging pile is low, and the actual idle rate is high, which leads to too long investment recovery period and cannot quickly make a profit.

[0044] In the related art, a plurality of fixed parking spaces are provided with charging services by track type charging piles. The charging pile includes a charging pile body, the charging pile body is arranged on a bottom plate, a charging gun is arranged on the charging pile body, the charging pile further includes a guide rail frame, a guide rail is arranged on the guide rail frame, the guide rails are interconnected, a power supply frame is arranged at the end of the corresponding guide rail above each fixed parking space, and a power supply positive pole block and a power supply negative pole block are arranged on the inner side of the power supply frame. The charging pile body is arranged above the guide rail, the bottom of the bottom plate is provided with a roller which can roll along the guide rail, and a positive pole electrical connection block which can be in contact with the power supply positive pole block and a negative pole electrical connection block which can be in contact with the power supply negative pole block are arranged on the charging pile body. The technical scheme has the effects of one charging pile corresponding to a plurality of parking spaces, reducing the phenomenon of a large number of idle charging piles, intelligent control, and making the entire charging process more convenient and safe.

[0045] However, the technical scheme directly docks the charging pile and the positive and negative poles of the power supply of the parking space position, has a large difficulty in automatic docking, cannot meet the high-power charging requirements of existing electric vehicles, has a high safety risk due to the exposure of the positive and negative poles, cannot be practically popularized and applied, and only one charging pile cannot meet the simultaneous charging requirements of multiple vehicles.

[0046] To solve at least one of the above technical problems, the present application provides a charging system. In the technical scheme of the present application, a plurality of power supply interfaces are arranged one-to-one corresponding to a plurality of fixed parking spaces, the plurality of power supply interfaces are connected to a plurality of power supply sources through a power supply device, when a vehicle in a target parking space has a charging demand, the charging pile is moved to a target power supply interface corresponding to the target parking space, or the power supply input interface of the charging pile is extended to the target power supply interface corresponding to the target parking space, then the vehicle owner connects the power supply input interface of the charging pile to the target power supply interface, and connects the power supply output interface of the charging pile, i.e. the charging gun, to the charging port of the vehicle. At this time, the plurality of power supply sources establish a charging circuit with the vehicle through the power supply device, the target power supply interface and the charging pile, thereby charging the vehicle. The circuit design based on multiple power supply sources can meet the charging power requirements in different scenarios, thereby providing protection for the charging effect of the vehicle. Meanwhile, the charging pile can meet the charging requirements of vehicles at different parking spaces, thereby reducing the number of installed charging piles and reducing costs.

[0047] The following embodiments are described in conjunction with FIG. 1 for the convenience of illustration.

[0048] As shown in FIG. 1, the charging system 100 of the present application is used to provide charging services for a plurality of fixed parking spaces. The charging system 100 includes a charging pile 10, a plurality of power supply interfaces 20 and a power supply device 30.

[0049] The charging pile 10 is provided with a power input interface 11. The plurality of power supply interfaces 20 are arranged one-to-one corresponding to the plurality of fixed parking spaces. The power supply device 30 is connected with the plurality of power supply interfaces 20 and the plurality of power supply sources 200, and the power supply device 30 is configured to output charging power to the plurality of power supply interfaces 20 based on the power output of the plurality of power supply sources 200. In the case that the charging pile 10 moves to the target power supply interface and the power input interface 11 of the charging pile 10 is connected with the target power supply interface, the charging pile 10 charges the vehicle in the target parking space corresponding to the target power supply interface based on the charging power.

[0050] Specifically, the charging pile 10 can be a movable charging pile, which can move in position as needed. The moving mode can be manually pushed, or automatically moved based on a trigger instruction. Alternatively, only the power input interface of the charging pile 10 can move in position as needed. The extension control mode can be manually pulled, or automatically extended based on a trigger instruction. The specific mode is not limited. The charging pile 10 also has a power output interface 12 (as shown in FIG. 4), such as a charging gun, which is connected with the charging port of the vehicle to charge the vehicle. In addition, the charging pile 10 not only has the function of converting power, such as reducing the received charging power to a target voltage to charge the vehicle, but also has the function of charging monitoring, such as real-time monitoring of the working parameters of the vehicle power demand, charging voltage, charging current, charging time, etc. during charging, for charging control.

[0051] The power supply interface 20 is arranged one-to-one corresponding to the fixed parking space and is arranged near the corresponding fixed parking space, and is used to be connected with the power input interface 11 of the charging pile 10. At the same time, the plurality of power supply interfaces 20 are connected with the plurality of power supply sources 200 through the power supply device 30. The power supply source 200 can be an alternating current power grid, an energy storage system, a photovoltaic system, etc., and the specific mode is not limited, which is used to provide power. The power supply device 30 is a power conversion device, which is used to convert the power provided by the plurality of power supply sources 200 into charging power, and then provide the charging power to the charging pile 10 through the power supply interface 20 for vehicle charging. In addition, the power supply device 30 communicates with the charging pile 10 through the power supply interface 20 in addition to supplying power to the charging pile 10 through the power supply interface 20. The communication content can include vehicle power demand, real-time charging working parameters, etc. Then, during the charging process, the power supply device 30 can perform power distribution based on the vehicle power demand and the output power of each power supply source 200 to ensure the charging quality.

[0052] When the vehicle needs to be charged, the vehicle owner parks the vehicle in the corresponding fixed parking space, the power supply interface corresponding to the fixed parking space is the target power supply interface, the charging pile 10 moves to the target power supply interface or the power supply input interface 11 of the charging pile 10 is extended to the target power supply interface, then the vehicle owner connects the power supply input interface 11 of the charging pile 10 with the target power supply interface, and connects the charging gun of the charging pile 10 with the charging port of the vehicle. At this time, the vehicle establishes a charging loop through the charging pile 10, the target power supply interface, the power supply device 30 and the plurality of power supply sources 200, and charges through the charging electric energy provided by the plurality of power supply sources 200. During the charging process, the power supply device 30 communicates with the charging pile 10 to obtain the power demand of the vehicle, and performs power distribution on the plurality of power supply sources 200 based on the power demand of the vehicle, so as to ensure the charging quality.

[0053] This embodiment can meet the charging demand of the vehicle in different parking spaces based on the charging pile 10, reduce the installation number of the charging pile and reduce the cost, and can meet the charging mileage demand in different scenarios based on the plurality of power supply sources, so as to easily realize optimal power distribution output and provide guarantee for the charging effect of the vehicle.

[0054] In some embodiments of the present application, the plurality of power supply sources 200 includes at least two of an alternating current grid, an energy storage system and a new energy power generation system.

[0055] Specifically, the alternating current grid is a network that outputs alternating current and is composed of alternating current output lines and a transformer substation. The new energy power generation system is a system that generates power by using renewable energy (such as solar energy, wind energy, water energy, etc.), such as a photovoltaic power generation system and a wind power generation system. The energy storage system is a device system that converts electric energy into chemical energy and stores in the battery, which is composed of a plurality of storage batteries.

[0056] The plurality of power supply sources 200 can be composed of two or three of the alternating current grid, the energy storage system and the new energy power generation system. The power supply priority or power distribution strategy of the plurality of power supply sources 200 can be pre-set during the charging process, and the power supply device 30 performs power distribution during the charging process based on the power supply priority or power distribution strategy.

[0057] For example, in the case where the plurality of power supply sources 200 includes the alternating current grid and the energy storage system, the alternating current grid is preferentially selected to provide electric energy, and when the output power of the alternating current grid cannot meet the power demand of the vehicle, the energy storage system is controlled to supplement power supply, and at this time, the alternating current grid and the energy storage system supply power at the same time.

[0058] For example, when the plurality of power supply sources 200 include an alternating current power grid and a new energy power generation system, the new energy power generation system is preferentially selected to provide power. When the output power of the new energy power generation system cannot meet the power demand of the vehicle, the alternating current power grid is controlled to supplement power supply. At this time, the alternating current power grid and the new energy power generation system simultaneously provide power for vehicle charging. In addition, when the output power of the new energy power generation system is greater than the power demand of the vehicle, the excess power can be output to the alternating current power grid.

[0059] For example, when the plurality of power supply sources 200 include an energy storage system and a new energy power generation system, the new energy power generation system is preferentially selected to provide power. When the output power of the new energy power generation system cannot meet the power demand of the vehicle, the energy storage system is controlled to supplement power supply. At this time, the energy storage system and the new energy power generation system simultaneously provide power. In addition, when the output power of the new energy power generation system is greater than the power demand of the vehicle, the excess power can be output to the energy storage system for charging.

[0060] For example, when the plurality of power supply sources 200 include an alternating current power grid, an energy storage system and a new energy power generation system, the supply priority from high to low is: the new energy power generation system, the alternating current power grid and the energy storage system, to perform charging power distribution. The specific control strategy is not limited.

[0061] The embodiment adopts two or three of the alternating current power grid, the energy storage system and the new energy power generation system as the power supply source 200, which can meet the charging demand in different scenarios and ensure the vehicle charging effect.

[0062] In some embodiments of the present application, as shown in FIG. 2, when the plurality of power supply sources 200 include an alternating current power grid, an energy storage system and a new energy power generation system, the power supply device 30 includes: a first power conversion unit 31, one end of the first power conversion unit 31 being connected with the alternating current power grid; a second power conversion unit 32, one end of the second power conversion unit 32 being connected with the other end of the first power conversion unit 31, the energy storage system and the new energy power generation system, and the other end of the second power conversion unit 32 being connected with the plurality of power supply interfaces; wherein the charging power is output based on the power of the alternating current power grid, the energy storage system and the new energy power generation system through the first power conversion unit 31 and the second power conversion unit 32.

[0063] Specifically, the first power conversion unit 31 is configured to convert the alternating current provided by the alternating current power grid into direct current, and the second power conversion unit 32 is configured to convert the direct current provided by the first power conversion unit 31, the new energy power generation system and the energy storage system into target direct current output for providing charging power to the plurality of power supply interfaces 20. In this way, the power of the alternating current power grid, the energy storage system and the new energy power generation system is converted into charging power by the first power conversion unit 31 and the second power conversion unit 32, so as to meet the charging demand in different scenarios and ensure the charging effect of the vehicle.

[0064] In some embodiments of the present application, the first power conversion unit 31 is a unidirectional ACDC conversion unit or a bidirectional ACDC conversion unit; and / or, the second power conversion unit 32 is a unidirectional DCDC conversion unit or a bidirectional DCDC conversion unit.

[0065] Specifically, in the case that the first power conversion unit 31 is a unidirectional ACDC conversion unit, the alternating current provided by the alternating current power grid can only be converted into direct current output by the first power conversion unit 31. In the case that the first power conversion unit 31 is a bidirectional ACDC conversion unit, in addition to converting the alternating current provided by the alternating current power grid into direct current output by the first power conversion unit 31, the direct current can also be converted into alternating current output to the alternating current power grid by the first power conversion unit 31. For example, in the case that the power output by the new energy power generation system is greater than the demand power of the vehicle, and the energy storage system is fully charged, the new energy power generation system can be controlled to provide power to charge the vehicle, and at the same time, the excess power can be output to the alternating current power grid by the first power conversion unit 31.

[0066] In the case that the second power conversion unit 32 is a unidirectional DCDC conversion unit, the power can only be output from the first power conversion unit, the new energy power generation system and the energy storage system to the power supply interface 20 by the second power conversion unit 32 to provide charging power for charging the vehicle. In the case that the second power conversion unit 32 is a bidirectional DCDC conversion unit, bidirectional flow of power between the first power conversion unit, the new energy power generation system and the energy storage system and the power supply interface 20 can be realized.

[0067] For example, in the case that the power supply device 30 adopts the first power conversion unit 31 as a unidirectional ACDC conversion unit and the second power conversion unit 32 as a unidirectional DCDC conversion unit, at this time, the charging power is provided to the power supply interface 20 based on the alternating current power grid, the energy storage system and the new energy power generation system; in the case that the power supply device 30 adopts the first power conversion unit 31 as a unidirectional ACDC conversion unit and the second power conversion unit 32 as a bidirectional DCDC conversion unit, at this time, in addition to providing the charging power to the power supply interface 20 through the alternating current power grid, the energy storage system and the new energy power generation system, the energy storage system can also be charged through the externally input direct current; in the case that the power supply device 30 adopts the first power conversion unit 31 as a bidirectional ACDC conversion unit and the second power conversion unit 32 as a bidirectional DCDC conversion unit, at this time, in addition to providing the charging power to the power supply interface 20 through the alternating current power grid, the energy storage system and the new energy power generation system, the energy storage system can also be charged through the externally input direct current, and the new energy power generation system outputs the power to the alternating current power grid, etc., realizing the bidirectional flow of the power between the power supply interface 20 and the power supply source 200.

[0068] The embodiment can realize the unidirectional flow, bidirectional flow or partial bidirectional flow of the energy, so as to adapt to the energy demand in different application scenarios, improve the charging effect of the vehicle and application flexibility.

[0069] In some embodiments of the present application, the power supply input interface 11 and the power supply interface 20 are connected in a plug-in manner.

[0070] One of the power supply input interface 11 and the power supply interface 20 is a socket, and the other is a corresponding plug. For example, the power supply input interface 11 is a plug, and the power supply interface 20 is a socket; or the power supply input interface 11 is a socket, and the power supply interface 20 is a plug. The specific application can be carried out according to the actual situation. The power supply input interface 11 and the power supply interface 20 are connected in a plug-in manner, so that the connection of the power supply input interface 11 and the power supply interface 20 is more convenient and reliable, solving the problems of great difficulty in automatic docking and high contact resistance that cannot meet the high-power charging of electric vehicles in the related art direct docking scheme of the charging pile and the positive and negative poles of the parking position power source.

[0071] In some embodiments of the present application, as shown in FIG. 3, the charging system 100 further comprises a plurality of triggering pieces 40, the plurality of triggering pieces 40 are one-to-one correspondingly arranged with the plurality of fixed parking positions, and the plurality of triggering pieces 40 are configured to trigger the charging pile 10 to move to the respective corresponding power supply interface; or configured to trigger the power supply input interface 11 of the charging pile 10 to stretch to the respective corresponding power supply interface.

[0072] Specifically, the triggering piece 40, the fixed parking position and the power supply interface 20 are one-to-one correspondingly arranged.

[0073] The trigger 40 is used to trigger the charging pile 10 to move to the corresponding power supply interface, or to automatically extend the power supply input interface 11 to the corresponding power supply interface. The trigger 40 can be a device that can output a corresponding trigger signal by itself, or can be an intermediate medium for generating a corresponding trigger signal. For example, the trigger 40 can be a mechanical switch, which is wired connected with the charging pile 10. At this time, the trigger 40 can be manually controlled to be closed or opened to output a corresponding trigger signal to the charging pile 10 by itself. The trigger 40 can also be a detection sensor, which is wirelessly connected with the charging pile 10. At this time, the trigger 40 can automatically detect whether a vehicle is parked in the parking space to output a corresponding trigger signal to the charging pile 10. The trigger 40 can also be a two-dimensional code, a radio frequency tag, etc. that stores position information, which is used as an intermediate medium for generating a trigger signal. At this time, the user scans and identifies the trigger 40 by using a mobile phone, and sends a corresponding trigger signal to the charging pile 10.

[0074] It can be understood that the trigger signal includes position information. After receiving the trigger signal, the charging pile 10 can determine the target parking space based on signal analysis, i.e. the fixed parking space corresponding to the trigger 40 that sends the trigger signal with charging demand, so as to automatically move to the corresponding target power supply interface, or control the power supply input interface 11 to extend to the target power supply interface, to perform subsequent vehicle charging.

[0075] According to the embodiment, the charging pile 10 can be automatically moved to the target power supply interface, or the power supply input interface 11 of the charging pile 10 can be controlled to extend to the target power supply interface, so that the charging process is more convenient.

[0076] In some embodiments of the present application, the trigger 40 is a parking space information identifier that includes parking space information. The charging pile 10 is also communicatively connected with a terminal device. The terminal device is configured to obtain the parking space information based on the parking space information identifier. The charging pile 10 is also configured to automatically move to the target power supply interface based on the parking space information of the target parking space sent by the terminal device. Alternatively, the charging pile 10 is also configured to control the power supply input interface 11 to extend to the target power supply interface based on the parking space information of the target parking space sent by the terminal device.

[0077] Specifically, the parking space information identifier is a carrier for storing parking space information, such as a bar code, a two-dimensional code, a radio frequency tag, etc. The terminal device is a device terminal that can identify the parking space information identifier, such as a mobile phone equipped with a target APP (Application, mobile phone software).

[0078] Taking a parking space information identifier in the form of a two-dimensional code as an example, it is assumed that a user parks a vehicle in a fixed parking space with a serial number of 02, the user scans and identifies the two-dimensional code of the parking space 02 through a mobile phone, obtains the parking space information, i.e., the serial number 02, stored in the two-dimensional code, and generates a trigger signal based on the parking space information and sends the trigger signal to the charging pile 10. The charging pile 10 receives the trigger signal and wakes up, analyzes the received trigger signal to obtain the parking space information, i.e., the serial number 02, and then the charging pile 10 can automatically move to the power supply interface 20 of the parking space 02 or control the power supply input interface 11 of the charging pile 10 to automatically extend to the power supply interface 20 of the parking space 02. Then, the user connects the power supply input interface 11 of the charging pile 10 to the power supply interface 20 of the parking space 02, and connects the charging gun of the charging pile 10 to the charging port of the vehicle, so as to charge the vehicle with the electric energy output by the power supply 200.

[0079] Therefore, the terminal device identifies the parking space information of the target parking space through the parking space information identifier of the target parking space, and sends the parking space information of the target parking space to the charging pile based on wireless communication. The charging pile 10 automatically moves to the target power supply interface of the target parking space according to the received parking space information of the target parking space, or controls the power supply input interface 11 of the charging pile 10 to automatically extend to the target power supply interface, so that the charging process is more convenient.

[0080] In some embodiments of the present application, the trigger piece 40 is a parking space switch, the parking space switch is connected with the charging pile 10, and the charging pile 10 is further configured to automatically move to the target power supply interface in a case where the state of the parking space switch corresponding to the target parking space is a target state; or the charging pile 10 is further configured to control the power supply input interface 11 to extend to the target power supply interface in a case where the state of the parking space switch corresponding to the target parking space is the target state.

[0081] Specifically, the parking space switch can be a mechanical switch or an electronic switch, and the parking space switch can be arranged at the pile position or at the parking space. The connection mode of the parking space switch and the charging pile 10 can be wireless or wired. For example, when the parking space switch is a mechanical switch, the mechanical switch is arranged at one side of the corresponding parking space, and the disconnection or closure of the mechanical switch is controlled by the user. At this time, the state of the mechanical switch is transmitted to the charging pile 10 in a wired manner. When the parking space switch is an infrared sensor, the infrared sensor can be arranged at one side of the corresponding parking space, and the infrared sensor automatically identifies whether a vehicle is parked in the corresponding parking space. At this time, the state is transmitted to the charging pile 10 in a wired or wireless manner. When the parking space switch is a pressure sensor, the pressure sensor is arranged in the fixed parking space, and whether a vehicle enters is determined by pressure detection. At this time, the state can be transmitted to the charging pile 10 in a wired or wireless manner.

[0082] The target state is used to represent that the corresponding position has a charging demand. For example, when the parking space switch is a mechanical switch, the closed state of the mechanical switch is the target state, and after the mechanical switch is pressed by a person, the target state is transmitted to the charging pile 10 through a wired manner.

[0083] When the charging pile 10 identifies that the state of the parking space switch is the target state, the charging pile 10 regards the fixed parking space corresponding to the parking space switch in the target state as the target parking space, and automatically moves to the target power supply interface corresponding to the target parking space or controls the power supply input interface 11 to stretch to the target power supply interface, so that the charging process is more convenient.

[0084] In some embodiments of the present application, the parking space switch includes at least one of a mechanical switch, a pressure sensor and an infrared sensor.

[0085] Specifically, the parking space switch of each fixed parking space can adopt one or more of a mechanical switch, a pressure sensor and an infrared sensor. For example, the parking space switch adopts a combination of a mechanical switch and an infrared sensor. When a user correctly parks a vehicle in the parking space 02, the infrared sensor of the parking space 02 detects that a vehicle is parked, and at the same time, the user presses the mechanical switch of the parking space 02. Based on the infrared detection result of the parking space 02 and the closed state of the mechanical switch, the charging pile determines that the parking space switch of the parking space 02 is in the target state, and then automatically moves to the power supply interface of the parking space 02 or controls the power supply input interface 11 to stretch to the target power supply interface for charging the vehicle in the parking space 02. In this way, when the charging pile 10 identifies that the state of the parking space switch is the target state, the charging pile 10 determines the target parking space based on the parking space switch, and automatically moves to the target power supply interface corresponding to the target parking space or controls the power supply input interface 11 to stretch to the target power supply interface, so that the charging process is more convenient.

[0086] In some embodiments of the present application, as shown in FIG. 4, the charging pile 10 is further provided with a sensing device 13 and a moving device 14, and the charging pile 10 is further configured to control the moving device 14 to automatically move to the target power supply interface based on the surrounding environment information sensed by the sensing device 13. Alternatively, the charging pile 10 is further provided with a sensing device 13 and a stretching device, and the charging pile 10 is further configured to control the stretching device to drive the power supply input interface 11 to stretch to the target power supply interface based on the surrounding environment information sensed by the sensing device 13.

[0087] Specifically, the perception device 13 is configured to detect the surrounding environment information, such as detecting whether there is an obstacle in the forward direction, the current position information, whether the target position is reached, etc. The perception device 13 includes a radar, a position sensor, a scanning recognition device, etc. The perception device 13 can determine the moving route based on the recognized surrounding environment information, to control the movement device 14 to move, or control the telescopic device to drive the power input interface 11 to extend or retract, and determine whether the target power input interface is reached. The movement device 14 can include a control unit, a driving motor, and a moving part such as a roller installed on the charging pile 10. The telescopic device can also include a control unit, a driving motor, and a moving part installed on the power input interface 11, to drive the power input interface 11 to move, so as to realize the extension or retraction of the power input interface 11. The specific structure can be applied according to the actual situation.

[0088] In addition, the charging pile 10 can adopt a guide rail structure, or can not adopt a guide rail structure. For example, when the guide rail structure is adopted, the perception device 13 can recognize the surrounding environment information by recognizing the position marks on the guide rail structure, and control the movement device 14 or the telescopic device to move along the guide rail. The movement device 14 or the telescopic device can include a bottom clamping position matched with the guide rail. When the guide rail structure is not adopted, the perception device 13 can recognize the surrounding environment information by recognizing the surrounding mark information, to determine whether the target position is reached, and then control the movement device 14 or the telescopic device to act.

[0089] In this embodiment, the charging pile 10 automatically moves to the target power input interface by the perception device 13 and the movement device 14, or automatically extends or retracts the power input interface 11 to the target power input interface based on the perception device 13 and the telescopic device, so that the charging process is more convenient, and the manual participation is reduced.

[0090] In some embodiments of the present application, as shown in FIGS. 5 and 6, the charging system 100 further includes a moving route mark 50, the moving route mark 50 is provided with a plurality of pile position marks, the plurality of pile position marks are arranged one by one corresponding to the plurality of power input interfaces 20, and the charging pile 10 is further configured to control the movement device 14 to automatically move to the target pile position mark corresponding to the target power input interface based on the surrounding environment information perceived by the perception device 13; or the charging pile 10 is further configured to control the telescopic device to drive the power input interface 11 to extend or retract to the target pile position mark corresponding to the target power input interface based on the surrounding environment information perceived by the perception device 13.

[0091] Specifically, the moving route identifier 50 is used to identify a moving path of the charging pile 10, so that the charging pile 10 or the power input interface 11 of the charging pile 10 moves along the moving route identifier 50. The pile position identifier is used to identify the parking position of the charging pile 10 at each fixed parking space, and the pile position identifier, the power input interface 20 and the fixed parking space are in one-to-one correspondence. When the charging pile 10 moves to a target power input interface, the charging pile 10 parks at the parking position corresponding to the target power input interface, that is, the pile position identifier. Or when the power input interface 11 of the charging pile 10 moves to a target power input interface, the power input interface 11 parks at the parking position corresponding to the target power input interface, that is, the pile position identifier.

[0092] For example, there are five fixed parking spaces, which are parking space 01, parking space 02, parking space 03, parking space 04 and parking space 05. Five power input interfaces 20 are provided corresponding to the five fixed parking spaces, which are power input interface 1, power input interface 2, power input interface 3, power input interface 4 and power input interface 5. The moving route identifier 50 is provided with five pile position identifiers corresponding to the five power input interfaces 20, which are pile position 1, pile position 2, pile position 3, pile position 4 and pile position 5. When there is no charging demand, that is, no vehicle is parked in the five parking spaces, the charging pile 10 is parked at a preset position. When there is a charging demand, the charging pile 10 can move to a target pile position based on a trigger signal. For example, when it is determined through a parking space switch that a vehicle is parked in the parking space 02 and the vehicle needs to be charged, the charging pile 10 moves along the moving route identifier 50, and when the sensing device 13 identifies the pile position 2, the moving device 14 is controlled to park the charging pile 10 at the pile position 2. The user connects the power input interface 11 of the charging pile 10 with the power input interface 2, and connects the charging gun of the charging pile 10 with the charging port of the vehicle to charge the vehicle.

[0093] In this embodiment, the charging pile 10 can automatically move to a target position based on the moving route identifier 50 or automatically stretch or retract the power input interface 11 to a target position, without the need for laying a guide rail, which is not only fast but also cost-saving.

[0094] In some embodiments of the present application, the number of charging piles 10 is greater than 1 and less than the number of fixed parking spaces.

[0095] When the number of charging piles 10 is multiple, the trigger wake-up sequence of the multiple charging piles 10 can be set in advance, and the charging piles 10 wake up and move to a target position to perform a charging process according to the preset trigger sequence, for example, the preset serial number can be used as the trigger sequence.

[0096] This embodiment can charge multiple vehicles simultaneously through multiple charging piles 10, meeting the demand for simultaneous charging of multiple vehicles.

[0097] As a specific embodiment of the present application, as shown in FIG. 4 and FIG. 5, the charging system 100 includes two movable charging piles represented as charging pile 1 and charging pile 2; there are five fixed parking spaces represented as parking space 01, parking space 02, parking space 03, parking space 04 and parking space 05, and a corresponding two-dimensional code is set as a position identification code for each fixed parking space; a power supply interface is provided near each parking space, represented as power supply interface 1, power supply interface 2, power supply interface 3, power supply interface 4 and power supply interface 5, and the five power supply interfaces are connected to the alternating current power grid and the energy storage system through the power supply device 30. In the power supply device 30, the first power charging unit 31 is a bidirectional AC / DC conversion unit, and the second power charging unit 32 is a bidirectional DC / DC conversion unit, and the specific connection is as shown in the figure. In this charging system 100, two charging piles are provided, represented as charging pile 1 and charging pile 2, and the charging piles can move autonomously according to a preset program, and the user can trigger the charging piles to move to the corresponding position by scanning the two-dimensional code of the corresponding parking space.

[0098] Specifically, when there is no vehicle charging, as shown in FIG. 4, the charging pile 1 and the charging pile 2 are parked at the fixed standby position. When there is a charging demand, as shown in FIG. 5, the user parks the vehicle to be charged in the parking space 02, and the mobile phone obtains the parking space information corresponding to the parking space 02 by scanning the two-dimensional code corresponding to the parking space 02, and generates trigger information based on the parking space information corresponding to the parking space 02 and sends it to the charging pile. The charging pile 1 is awakened based on the trigger signal, and identifies the trigger information to determine that the target position is pile position 2, and automatically moves to pile position 2 through the sensing device 13 and the moving device 14. Then the user inserts the power supply input interface of the charging pile 1 into the power supply interface 2, and the charging gun of the charging pile 1 is connected to the charging port of the vehicle, and the charging of the vehicle is started. During the charging process, the power supply device 30 obtains the vehicle power demand and the number of connected charging vehicles based on communication, and performs power distribution on the current energy storage system and the alternating current power grid according to the vehicle power demand and the number of connected charging vehicles, until the charging is completed. The charging pile 1 automatically returns to the standby position.

[0099] During the charging process of the charging pile 1, if another vehicle to be charged is parked in the parking space 03, the vehicle owner obtains the parking space information corresponding to the parking space 03 by scanning the two-dimensional code corresponding to the parking space 03 through the mobile phone, and generates trigger information based on the parking space information corresponding to the parking space 03 and sends it to the charging pile. Since the charging pile 1 is performing charging, the charging pile 2 is awakened based on the trigger signal, and identifies the trigger information to determine that the target position is pile position 3, and the charging pile 2 moves to pile position 3 through its own sensing device 13 and moving device 14 to perform charging on the vehicle at the parking space 03. During the charging process, the power supply device 30 obtains the vehicle power demand and the number of connected charging vehicles based on communication, and performs power distribution on the current energy storage system and the alternating current power grid according to the vehicle power demand and the number of connected charging vehicles, until the charging is completed. The charging pile 2 automatically returns to the standby position.

[0100] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the description of the present application. In particular, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A charging system for providing charging services for a plurality of fixed parking spaces, the system comprising: a charging pile, the charging pile being provided with a power input interface; a plurality of power supply interfaces, the plurality of power supply interfaces being arranged in one-to-one correspondence with the plurality of fixed parking spaces; a power supply device, the power supply device being connected with the plurality of power supply interfaces and a plurality of power supply sources, and being configured to output charging power to the plurality of power supply interfaces based on the electric energy of the plurality of power supply sources; wherein, in the case that the charging pile moves to a target power supply interface, and the power input interface of the charging pile is connected with the target power supply interface, or the power input interface of the charging pile is extended to and connected with the target power supply interface, the charging pile charges a vehicle in a target parking space corresponding to the target power supply interface based on the charging power.

2. The charging system of claim 1, wherein, The plurality of power supply sources comprises at least two of an alternating current power grid, an energy storage system and a new energy power generation system.

3. The charging system of claim 2, wherein, In the case that the plurality of power supply sources comprises the alternating current power grid, the energy storage system and the new energy power generation system, the power supply device comprises: a first power conversion unit, one end of the first power conversion unit being connected with the alternating current power grid; a second power conversion unit, one end of the second power conversion unit being connected with the other end of the first power conversion unit, the energy storage system and the new energy power generation system, and the other end of the second power conversion unit being connected with the plurality of power supply interfaces; wherein, through the first power conversion unit and the second power conversion unit, the charging power is output based on the electric energy of the alternating current power grid, the energy storage system and the new energy power generation system.

4. The charging system of claim 3, wherein, The first power conversion unit is a unidirectional ACDC conversion unit or a bidirectional ACDC conversion unit; and / or, the second power conversion unit is a unidirectional DCDC conversion unit or a bidirectional DCDC conversion unit.

5. The charging system of any one of claims 1-4, wherein, The power input interface and the power supply interface are connected in a plug-in manner.

6. The charging system of claim 5, wherein, The power input interface is a plug, and the power supply interface is a socket; or the power input interface is a socket, and the power supply interface is a plug.

7. The charging system of any one of claims 1-4, wherein, The system further comprises: a plurality of triggers, the plurality of triggers being arranged in one-to-one correspondence with the plurality of fixed parking spaces, the plurality of triggers being configured to trigger the charging pile to move to a respective corresponding power supply interface; or being configured to trigger the power input interface of the charging pile to extend to a respective corresponding power supply interface.

8. The charging system of claim 7, wherein, The trigger is a parking space information identifier comprising parking space information, the charging pile is further communicatively connected with a terminal device, the terminal device is configured to obtain the parking space information based on the parking space information identifier, and the charging pile is further configured to automatically move to the target power supply interface based on the parking space information of the target parking space sent by the terminal device; or, the charging pile is further configured to control the power input interface thereof to extend to the target power supply interface based on the parking space information of the target parking space sent by the terminal device.

9. The charging system of claim 8, wherein, The parking space information identifier is a bar code or a two-dimensional code.

10. The charging system of claim 7, wherein, The trigger is a parking space switch, the parking space switch is connected with the charging pile, and the charging pile is further configured to automatically move to the target power supply interface when the state of the parking space switch corresponding to the target parking space is a target state; or the charging pile is further configured to control the power supply input interface of the charging pile to extend to the target power supply interface when the state of the parking space switch corresponding to the target parking space is a target state.

11. The charging system of claim 10, wherein, The parking space switch comprises at least one of a mechanical switch, a pressure sensor and an infrared sensor.

12. The charging system of any one of claims 1-4, wherein, The charging pile is further provided with a sensing device and a moving device, and the charging pile is further configured to control the moving device to automatically move to the target power supply interface based on the surrounding environment information sensed by the sensing device; or the charging pile is further provided with a sensing device and an extension device, and the charging pile is further configured to control the extension device to drive the power supply input interface to extend to the target power supply interface based on the surrounding environment information sensed by the sensing device.

13. The charging system of claim 12, wherein, The system further comprises: A moving route mark is provided with a plurality of pile marks, and the plurality of pile marks are arranged one by one with the plurality of power supply interfaces, the charging pile is further configured to control the moving device to automatically move to the target pile mark corresponding to the target power supply interface based on the surrounding environment information sensed by the sensing device; or the charging pile is further configured to control the extension device to drive the power supply input interface to extend to the target pile mark corresponding to the target power supply interface based on the surrounding environment information sensed by the sensing device.

14. The charging system of any one of claims 1-4, wherein, The number of the charging piles is greater than 1 and less than the number of the plurality of fixed parking spaces.

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