Charging state display method, charging device, and charging system

Abstract

The application discloses a charging state display method, a charging device and a charging system, and relates to the technical field of charging. The method is applied to a first charging device, the first charging device comprises a display screen, the first charging device is connected with N first charging guns, N is a positive integer, and the method comprises the following steps: entering a first display mode under the condition that a preset condition is met; and controlling the display screen to display L first interfaces at different time points based on the first display mode, wherein L is a positive integer, L is less than or equal to N, the L first interfaces correspond to L first charging guns in the N first charging guns in a one-to-one manner, each first interface comprises a first display element associated with the corresponding first charging gun, and the first display element is highlighted in the first interface. Thus, the problem that the visual distance of the existing charging device is small and the user experience is poor can be solved.

Description

Technical Field

[0001] This application relates to the field of charging technology, and in particular to a charging status display method, charging device and charging system. Background Technology

[0002] With the rapid popularization of new energy vehicles, charging piles, as the core infrastructure for energy replenishment of electric vehicles, are becoming increasingly important in terms of performance and user interaction experience.

[0003] Currently, most charging stations on the market are equipped with touchscreen displays for information display and human-computer interaction. However, the display and interaction design of existing charging stations has some shortcomings. For example, the font and icon sizes of the displayed content on existing charging station screens are generally too small, making it difficult for users to clearly identify key information at a distance or in bright light, thus affecting the charging experience. Another example is the insufficient sensitivity of the touchscreens in existing charging stations, which can easily lead to accidental touches or response delays, requiring users to perform repeated operations; furthermore, users need to click multiple times to complete the charging operation, making the process cumbersome. These defects seriously affect the user experience. Summary of the Invention

[0004] The main purpose of this application is to provide a charging status display method, charging device, and charging system to solve the problems of short viewing distance and poor user experience of existing charging devices. By increasing the effective viewing distance of the charging device's display screen, users can obtain relevant information about each charging gun from a distance through the display screen, thereby improving the user experience.

[0005] To achieve the above objectives, this application provides a charging status display method applied to a first charging device. The first charging device includes a display screen and is used to provide power output to N first charging guns, where N is a positive integer. The method includes:

[0006] If the preset conditions are met, the system will enter the first display mode.

[0007] Based on the first display mode, the display screen is controlled to display L first interfaces at different times; where L is a positive integer and L≤N, the L first interfaces correspond one-to-one with the L first charging guns among the N first charging guns, and each first interface includes a first display element associated with the corresponding first charging gun, and the first display element is highlighted in the first interface.

[0008] Optionally, when L equals N, controlling the display screen to display L first interfaces at different times includes: controlling the display screen to rotate each of the first interfaces at different times.

[0009] Optionally, controlling the display screen to rotate each of the first interfaces at different times includes: determining the rotation frequency of each of the first interfaces based on the status information of each of the first charging guns; and controlling the display screen to rotate each of the first interfaces at different times based on the rotation frequency of each of the first interfaces.

[0010] Optionally, controlling the display screen to display L first interfaces at different times includes: determining L first charging guns from N first charging guns based on the status information of each first charging gun; and controlling the display screen to rotate the L first interfaces corresponding to the L first charging guns at different times.

[0011] Optionally, the status information includes one or more of idle status, charging status, fault status, and vehicle SOC value, and the first display element includes a combination of one or more of text, numbers, and graphic elements used to represent the status information.

[0012] Optionally, after controlling the display screen to rotate the L first interfaces corresponding to the L first charging guns at different times, the method further includes: if the state information of any first charging gun changes, then re-determine the L first charging guns from the N first charging guns based on the state information of each first charging gun.

[0013] Optionally, the method further includes: acquiring the status information of M second charging guns connected to the second charging device, where M is a positive integer; controlling the display screen to display M second interfaces at different times, wherein the M second interfaces correspond one-to-one with the M second charging guns, each second interface includes a second display element, the second display element in each second interface is used to represent the status information of the corresponding second charging gun, and the second display element is highlighted in the second interface.

[0014] Optionally, the method further includes: obtaining the device types of the first charging device and the second charging device; determining the carousel frequency of the first interface based on the device type of the first charging device, and determining the carousel frequency of the second interface based on the device type of the second charging device; and controlling the display screen to rotate each of the first interface and each of the second interface according to the carousel frequency of the first interface and the carousel frequency of the second interface.

[0015] Optionally, the display screen is a touch-sensitive display screen; the preset conditions include: no user touch operation is detected within a preset time period, the first charging gun enters a specified state, user manual operation triggers, and / or it is within a preset time period.

[0016] Optionally, the display screen is a touch-sensitive display screen; the method further includes: entering a second display mode when the first charging device is turned on or when a user's touch operation is detected; and controlling the display screen to display a third interface based on the second display mode; wherein the third interface includes N third display elements, the N third display elements correspond one-to-one with the N first charging guns, and the third display elements are used to characterize the relevant information of the corresponding first charging gun.

[0017] Optionally, the first display element is located in the middle of the first interface and the area ratio of the first display element is greater than a preset threshold; wherein, the area ratio of the first display element is the ratio between the area of ​​the first display element and the area of ​​the first interface.

[0018] In addition, to achieve the above objectives, this application also provides a charging device, including a display screen and a controller; the controller is connected to the display screen and is used to execute the charging status display method as described in any of the preceding claims.

[0019] This application also provides a charging system, characterized in that it includes a charging host and at least one charging terminal, wherein the charging host is connected to each of the charging terminals; the charging host includes a first display screen, a first controller, a power distribution device, and at least one power module, wherein the first controller is connected to the first display screen, the power distribution device, and each of the power modules, and the power distribution device is connected to each of the power modules, and the first controller is used to execute the charging status display method as described in any of the above claims; the charging terminal includes a second display screen, a second controller, and at least one charging interface, wherein the second controller is connected to the first controller and the second display screen, and each of the charging interfaces is connected to the power distribution device, and the second controller is used to execute the charging status display method as described in any of the above claims.

[0020] Optionally, the first display screen is used to display each first interface or third interface corresponding to each of the charging terminals, and the second display screen is used to display each first interface or third interface of the corresponding charging terminal.

[0021] The charging status display method of this application controls the charging device to enter a first display mode when the first charging device meets preset conditions. In the first display mode, the display screen will display multiple first interfaces at different times. The first display elements in different first interfaces are associated with different first charging guns, and the first display elements are highlighted in the first interface. Therefore, it can provide users with a farther and clearer viewing distance, so that users can clearly know the relevant information of each first charging gun from a distance. This makes it easier for users to select a charging gun for charging, effectively improving the convenience of charging and the user experience. Attached Figure Description

[0022] Figure 1 This is a scenario example of the charging status display method according to an embodiment of this application;

[0023] Figure 2 This is one of the flowcharts of the charging status display method according to an embodiment of this application;

[0024] Figure 3 This is the second flowchart of the charging status display method according to an embodiment of this application;

[0025] Figure 4 This is a schematic diagram of the first interface of the first example of this application;

[0026] Figure 5 This is a schematic diagram of the first interface of the second example of this application;

[0027] Figure 6 This is a schematic diagram of the first interface of the third example of this application;

[0028] Figure 7 This is the third flowchart of the charging status display method according to an embodiment of this application;

[0029] Figure 8 This is the fourth flowchart of the charging status display method according to an embodiment of this application;

[0030] Figure 9 This is the fifth flowchart of the charging status display method according to an embodiment of this application;

[0031] Figure 10 This is a schematic diagram of the third display element in the first example of this application;

[0032] Figure 11 This is a schematic diagram of the third display element in the second example of this application;

[0033] Figure 12 This is a schematic diagram of the third display element in the third example of this application;

[0034] Figure 13This is a schematic diagram of the third display element in the fourth example of this application;

[0035] Figure 14 This is a schematic diagram of the third display element in the fifth example of this application;

[0036] Figure 15 This is a schematic diagram of a third interface as an example of this application;

[0037] Figure 16 This is a flowchart illustrating the switching between the first display mode and the second display mode in an embodiment of this application.

[0038] Figure 17 This is a schematic diagram of the charging system according to an embodiment of this application;

[0039] In the diagram, 110 is the charging host; 111 is the first display screen; 112 is the first controller; 113 is the power distribution device; 114 is the power module; 115 is the first card reader; 120 is the charging terminal; 121 is the second display screen; 122 is the second controller; 123 is the charging interface; and 124 is the second card reader.

[0040] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0042] As a key infrastructure for charging new energy electric vehicles, charging piles play a vital role. They mainly consist of the charging pile itself, charging modules, control systems, electricity meters, and communication modules. The charging pile is sometimes equipped with a display screen, which not only displays basic information and real-time data but also supports user interaction via touch, allowing users to easily obtain the necessary information and complete charging operations.

[0043] Many charging stations on the market today tend to use their display screens to play advertisements to generate additional revenue when unattended, or they may dim the screen brightness or even turn it off completely to save energy. While a few charging stations do use displays to show basic information, this information is usually presented in text and small images, resulting in poor visual appeal and negatively impacting the user experience.

[0044] Furthermore, some charging stations' main display screens feature both "APP" and "Card Swipe" buttons for users to initiate charging. However, in actual use, if a user intends to charge via card swipe but accidentally presses the "APP" button, they must first click the "back" button and then select the "Card Swipe" button to complete the operation, a process that is particularly cumbersome. Additionally, the charging station's main interface fails to clearly display the current status of the charging station, and the small text size limits reading distance, further reducing user experience, convenience, and satisfaction.

[0045] Based on this, this application provides a charging status display method, a charging device, and a charging system. By displaying only the relevant information for one charging gun on the charging device's screen, and highlighting this information through prominent elements, users can easily read the current status and related information of the charging station even from a distance. This also simplifies the process of selecting a charging gun for vehicle charging. In this way, users can quickly obtain the necessary information, reducing the time spent searching for and identifying the required charging gun, significantly improving the convenience and intuitiveness of operation, and greatly enhancing the user experience. This method is also more suitable for optimizing the interactive experience of charging devices in multi-user scenarios such as public charging stations, providing a more user-friendly and efficient charging service environment for new energy vehicle users.

[0046] For ease of understanding, this specification provides a scenario example of a charging status display method, which is applied in situations such as... Figure 1 In the application environment shown, the scenario example is a large charging station scenario, which includes multiple charging hosts 110, each charging host 110 is connected to multiple charging terminals 120, and the charging hosts 110 and charging terminals 120 form a split charging pile.

[0047] In this scenario example, each charging host 110 can be a charging host 110 with different power, such as a charging host 110 for a 360kW charging pile, a charging host 110 for a 480kW charging pile, etc. The charging host 110 is used to provide and distribute electrical energy to each charging terminal 120. The charging host 110 may include a display screen, a controller, a power distribution device, a card reader, and several power modules. The controller of the charging host 110 can be connected to the display screen, the power distribution device, the card reader, and each power module.

[0048] The charging terminal 120 can be of different specifications, such as a 600A charging terminal 120, a 400A charging terminal 120, etc. The charging terminal 120 may include a display screen, a controller, a card reader, and multiple charging ports. The display screen and card reader are connected to the controller, and each charging port is connected to the power distribution device of the charging host 110. The charging terminal 120 is mainly for user use. Each charging port can be connected to a charging gun, and the power distribution device can output power to each charging gun through each charging port, allowing the user to charge their electric vehicle using the charging gun.

[0049] To ensure consistency between the charging gun status and information displayed on the charging host 110 display and the charging terminal 120 display, the charging host 110 controller and the charging terminal 120 controller need to communicate and synchronize data. The communication connection method is not limited to 485, CAN, Ethernet, Bluetooth, Wi-Fi, etc. The data communication between the charging host 110 and the charging terminal 120 includes periodic transmission and burst transmission. Burst transmission means that data synchronization will be performed immediately when the status of the charging gun changes. Periodic transmission means that data will be synchronized every preset period (5 seconds or other periodic time) when the system is in a relatively stable state during charging or when it is not in a charging state.

[0050] In this scenario example, when no user operates the charging host 110, the display screen of the charging host 110 can rotate through multiple first interfaces. Each first interface includes a highlighted display element, and each first interface displays only information related to a charging gun connected to the charging host 110. The highlighted display element can be a status icon of a charging gun. Similarly, when no user operates the charging terminal 120, the display screen of the charging terminal 120 can also rotate through multiple first interfaces, with each first interface displaying only information related to a charging gun connected to the charging terminal 120.

[0051] Therefore, when a user needs to charge their electric vehicle, they don't need to get out of the car and go to the display screen of the charging host 110 or charging terminal 120 to check which charging gun is available. Instead, the user can quickly find out the relevant information for each charging gun by watching the rotating displays on the charging host 110's screen, thus determining which charging gun is currently available. This allows users to easily find an available charging gun and drive directly to its location, improving charging efficiency.

[0052] In this scenario example, when all charging guns are charging, users can obtain specific charging progress information for each charging gun by observing the first interface displayed in a loop on the charging host 110 screen. This allows users to quickly identify charging guns that are about to finish charging, thus prioritizing those charging stations nearing completion and queuing accordingly, effectively improving user efficiency and charging station turnover rate.

[0053] Referring to the scenario examples of the charging status display method in the foregoing embodiments, the charging status display method of this application embodiment will be described in detail below.

[0054] Figure 2 This is one of the flowcharts for a charging status display method according to an embodiment of this application. This charging status display method can be applied to a first charging device and executed by the controller of the first charging device; the first charging device is used to provide power output to N first charging guns, where N is a positive integer. Figure 2 As shown, the charging status display method may include the following steps:

[0055] Step 210: If the preset conditions are met, enter the first display mode.

[0056] Step 220: Based on the first display mode, control the display screen to display L first interfaces at different times; where L is a positive integer and L≤N, the L first interfaces correspond one-to-one with the L first charging guns among the N first charging guns, and each first interface includes a first display element associated with the corresponding first charging gun, and the first display element is highlighted in the first interface.

[0057] First, it should be noted that the first charging device described in the embodiments of this application can be an integrated charging pile, or it can be a charging host or charging terminal of a split charging pile. The first charging gun refers to a charging gun that is connected to the charging device. If the first charging device is a charging host, then the charging guns of all charging terminals connected to the charging host can be the first charging gun.

[0058] Furthermore, the display screen of the first charging device uses touch screen technology to realize human-computer interaction functions, specifically capacitive touch screens or resistive touch screens. This display screen not only has color display capabilities, clearly presenting visual information such as charging status and operation instructions, but also supports direct human-computer touch interaction, allowing users to complete various functions such as charging start, parameter setting, and payment confirmation through touch operation. The controller can take the form of a PCB board (but is not limited to), and its core configuration includes built-in memory and a high-performance computing unit. The controller is equipped with dedicated charging pile application control software, establishing a two-way communication connection with the touch screen through an electrical interface. On the one hand, the controller can dynamically control the content displayed on the screen; on the other hand, the controller can continuously collect the user's touch action signals, identify the user's operation intention by parsing the touch coordinate data, and then execute corresponding business logic processing, such as interface navigation and function switching.

[0059] In this embodiment, after the first charging device is powered on, its controller can first obtain relevant information about each of the first charging guns. This information may include the status information and gun number of each charging gun, and the status information may include idle state, charging state, fault state, and vehicle SOC value. Further, the controller can control the display to show the interface in normal mode based on the relevant information of each charging gun. It should be noted that in normal mode, the interface displayed on the screen can include relevant information about multiple charging guns.

[0060] When the first charging device meets the preset conditions, the controller controls the display screen to enter the first display mode, which in this embodiment is the large screen display mode. In the first display mode, the controller can control the display screen to display L first interfaces at different times, that is, the display screen displays only one first interface at a time. The time mentioned here can be a time period set by the staff. For example, the time period can be 2 seconds, that is, after 2 seconds, the display screen of the first charging device switches the first interface once.

[0061] In this embodiment, the number of first interfaces can be less than or equal to the number of first charging guns, and each first interface displays only the relevant information of one first charging gun. Different first interfaces are used to display the relevant information of different first charging guns.

[0062] Specifically, the first interface may include a first display element, which represents relevant information about a first charging gun. For example, the first display element may represent the current state of a first charging gun. Furthermore, the first display element is highlighted in the first interface. This highlighting can be achieved by increasing the area of ​​the first display element, making the first display element bold, or placing the first display element in a highlighted area. Alternatively, multiple highlighting methods can be used simultaneously, such as increasing the area of ​​the first display element while also making it bold. This creates strong visual recognition, allowing users to quickly locate the status of each charging gun even at a distance, in low light, or in complex environments (such as rainy or foggy weather), reducing decision-making time.

[0063] In this embodiment, the first display element refers to a visual component used to intuitively display key information in the human-machine interface of the charging pile. Depending on different information delivery needs and interface design strategies, these elements can be presented individually or in combination in various forms. Specifically, the first display element can be text, numbers, or graphic elements, or a combination of text, numbers, and graphic elements. As an example, if the first display element is used to represent the current state of the first charging gun, it can be words such as "Idle," "Fault," or "Charging," or it can be the vehicle's SOC value (such as "80%)," or it can be a battery graphic element or embed the number "80%" inside a battery graphic, etc.

[0064] Therefore, the display of the first charging terminal shows multiple first interfaces at different times. Each first interface displays relevant information about a charging gun through highlighted elements, effectively increasing the viewing distance of the display screen. This design is particularly suitable for large charging station scenarios, enabling users to quickly and conveniently locate available charging guns and thus efficiently complete vehicle charging. At the same time, this solution effectively alleviates the difficulty for users in selecting charging stations in harsh environments (such as cold or rainy days), avoids the inconvenience of drivers needing to get out of their vehicles to check the charging status of each charging gun up close, and significantly improves the user charging experience.

[0065] In some implementations, the first display element is located in the middle of the first interface and the area of ​​the first display element is greater than a preset threshold; wherein, the area ratio of the first display element is the ratio between the area of ​​the first display element and the area of ​​the first interface.

[0066] It should be noted that the preset threshold can be set manually by staff according to actual needs. For example, the preset threshold can be set to 50%, that is, the ratio of the area of ​​the first display element to the area of ​​the first interface needs to be greater than 50%.

[0067] In this embodiment, the first display element can be located in the central area of ​​the first interface, and the display area of ​​the first display element needs to be greater than a preset threshold. This dual enhancement mechanism, through the combination strategy of "central positioning + large-area rendering", can provide strong visual recognition, thereby increasing the user's viewing distance.

[0068] In some implementations, the status information includes one or more of idle status, charging status, fault status, and vehicle SOC value, and the first display element includes a combination of one or more of text, numbers, and graphic elements used to represent the status information.

[0069] In this embodiment, the first display element can be a display element used to highlight the status information of the first charging gun. Specifically, the first display element can be highlighted text, and the text corresponds to the status information. For example, the first display element can be words such as "Idle" or "Fault". The first display element can also be a highlighted number, which can be the gun number of the first charging gun, or the vehicle's SOC value, etc. The first display element can also be a graphic element. For example, if the first charging gun is in a charging state, the first display element can be a highlighted battery graphic element. Similarly, it can also be a combination of multiple elements. For example, the first display element can be a display element that embeds the number "80%" inside the battery graphic, etc.

[0070] In some implementations, different first display elements may be set according to the type of the first charging device.

[0071] As an example, if the first charging device is a charging host, then after entering the first display mode, the first interface corresponding to the first charging gun in the charging state can highlight the charging level (i.e., the vehicle's SOC value). As another example, if the first charging device is a charging terminal, then after entering the first display mode, the first interface corresponding to the first charging gun in the charging state can highlight graphic elements corresponding to the charging level (e.g., a combination of battery graphic elements and numbers). This provides users with different visual interaction experiences.

[0072] In some implementations, when L equals N, the display screen is controlled to display L first interfaces at different times, including: the display screen is controlled to rotate each first interface at different times.

[0073] In this embodiment, the number of first interfaces can be the same as the number of first charging guns, with each first interface corresponding to one first charging gun. Furthermore, the controller can control the display screen to show each first interface in a carousel format, meaning each first interface is played sequentially in each round.

[0074] As an example, if the first charging guns connected to the first charging device are: charging gun 1, charging gun 2, charging gun 3, charging gun 4, charging gun 5, and charging gun 6, then there will also be 6 first interfaces, each displaying information about one charging gun. In this case, the controller can control the display screen to cycle through these 6 first interfaces according to a preset order and interval, ensuring that the information for each first charging gun is presented periodically. The preset order can be manually set by the staff, for example, according to the charging gun numbers.

[0075] Therefore, by using a carousel, users can quickly browse all the relevant information about the first charging gun, making it easier to select an upcoming vacant gun and significantly improving queuing efficiency. Furthermore, the carousel mechanism reduces the complexity of user operations, allowing them to obtain all the information without manually switching interfaces, which is particularly useful in large charging stations.

[0076] Figure 3 This is the second flowchart of the charging status display method according to an embodiment of this application. Figure 3 As shown, in some implementations, controlling the display screen to rotate through the various first interfaces at different times may include the following steps:

[0077] Step 310: Determine the rotation frequency of each first interface based on the status information of each first charging gun.

[0078] Step 320: Control the display screen to rotate each first interface at different times according to the rotation frequency of each first interface.

[0079] In this embodiment, the relevant information of each first charging gun acquired by the controller can specifically be status information. Specifically, the controller can acquire the status information of each first charging gun from its own storage medium, from the power distribution device, or directly from each first charging gun. The specific acquisition method can refer to existing methods and will not be elaborated here. The status information may include idle state, charging state, and fault state, and may also include the SOC value of the vehicle being charged by the first charging gun, etc.

[0080] In some implementations, the controller can send the number, status information and vehicle SOC value of each first charging gun to the display screen, which then displays the corresponding first interface based on these data.

[0081] As an example, Table 1 is the status information table in the first display mode. Table 1 shows the status information of charging gun 1 to charging gun 3. As shown in Table 1, the status information can be represented by numbers. When the status information of charging gun 1 is 0 and the vehicle SOC value is empty, it means that charging gun 1 is in an idle state. At this time, the first interface corresponding to charging gun 1 displayed on the screen can be as follows: Figure 4 The interface shown.

[0082] If the status information of charging gun 2 is 1 and the vehicle's SOC value is the current SOC value of the vehicle being charged (80%), it indicates that charging gun 2 is in charging mode. At this time, the first interface corresponding to charging gun 2 displayed on the screen can be as follows: Figure 5 The interface shown here. It should be noted that the vehicle's SOC value can be uploaded to the charging equipment by the vehicle's BMS battery management system.

[0083] If the status information for charging gun 3 is 2 and the vehicle's SOC value is empty, it indicates that charging gun 3 is in a fault state. In this case, the first interface displayed on the screen corresponding to charging gun 3 can be as follows: Figure 6 The interface shown.

[0084] Table 1 Status Information Table in First Display Mode

[0085] 1 0 null 2 1 80％ 3 2 null

[0086] After determining the first interface corresponding to each first charging gun, the controller can control the display screen to rotate through each first interface at different times. Specifically, the controller can first determine the rotation frequency of each first interface based on the status information of each first charging gun, that is, different first interfaces can be set to rotate different times.

[0087] In this embodiment, the status information of the first charging gun can represent its current state. The current state of the first charging gun can include three types: idle state, charging state, and fault state. The controller can choose to make the first interface with any one or any two states rotate more frequently than the other first interfaces.

[0088] As an example, the frequency of the first interface rotation for the first charging gun in an idle state can be increased, while the frequency of the first interface rotation for the first charging gun in a charging state and a faulty state can be decreased. By increasing the frequency of the first interface rotation for the first charging gun in an idle state, users can find an available charging gun more quickly. For example, if the first charging device is connected to 12 first charging guns, of which 4 are charging, 7 are idle, and 1 is faulty, the display screen can be controlled to display the first interface corresponding to the 12 first charging guns in the first round, the first interface corresponding to the 7 idle first charging guns in the second round, and the first interface corresponding to the 12 first charging guns again in the third round. Following this rotation method, the first interface corresponding to the idle first charging gun will be rotated more frequently than the other first interfaces.

[0089] After determining the rotation frequency of each first interface using the above method, the controller can control the display screen to rotate each first interface according to the rotation frequency of each first interface.

[0090] It should be noted that when the status information of the first charging gun changes, the rotation frequency of the first interface corresponding to the first charging gun also changes. For example, the first charging device is connected to 12 charging guns, of which 4 are charging, 7 are idle, and 1 is faulty. If one of the 4 charging guns completes the charging process, its status information changes to idle, and the rotation frequency of the first interface corresponding to that charging gun increases.

[0091] In some implementations, the decision to enter a variable-frequency rotation mode for each first interface can be determined based on the proportion of first charging guns in an idle state. If the proportion of first charging guns in an idle state is greater than a preset proportion, each first interface can rotate at the same frequency. If the proportion of first charging guns in an idle state is less than or equal to the preset proportion, the rotation frequency of each first interface can be adjusted as described above. It should be noted that the preset proportion can be set by the operator according to actual needs, for example, it can be set to 50%.

[0092] As an example, if the preset percentage is set to 50%, and the first charging device is connected to 12 charging guns, of which 3 are charging, 8 are idle, and 1 is faulty, the percentage of idle charging guns exceeds 50%, allowing the 12 interfaces to rotate in a fixed manner. If 7 charging guns are charging, 4 are idle, and 1 is faulty, the percentage of idle charging guns is less than 50%. In this case, the controller can control the display screen to show the interfaces corresponding to the 12 charging guns in the first round, the interfaces corresponding to the 4 idle charging guns in the second round, and the interfaces corresponding to the 12 charging guns again in the third round, rotating in this manner to increase the display rate of the idle charging guns.

[0093] In some implementations, controlling the display screen to display L first interfaces at different times may include: determining L first charging guns from N first charging guns based on the status information of each first charging gun; and controlling the display screen to rotate the L first interfaces corresponding to the L first charging guns at different times.

[0094] In large charging stations and other applications where charging equipment is connected to numerous charging guns, the display screen can be controlled to only rotate through the selected first screen, thereby improving efficiency and practicality.

[0095] Specifically, the controller can select the first charging guns whose information needs to be displayed in rotation based on the status information of each first charging gun, and then control the display screen to only display the first interface corresponding to the selected first charging gun. As an example, the controller can select the first charging guns that are in an idle state from all the first charging guns based on the status information of each first charging gun, and control the display screen to only display the first interface corresponding to the first charging guns that are in an idle state, thereby making it easier for users to quickly locate available charging guns.

[0096] As another example, the controller can also select the first charging guns that are charging and the first charging guns that are idle from all the first charging guns based on the status information of each first charging gun, and control the display screen to only rotate the first interface corresponding to the first charging guns that are charging and the first charging guns that are idle, so that users can easily check the charging status of the vehicle and quickly find available charging guns.

[0097] Staff can also designate a portion of the first screen for carousel display based on actual needs; no specific restrictions are placed on how the first screen is determined for carousel display.

[0098] In some implementations, after the control display screen rotates through the L first interfaces corresponding to the L first charging guns at different times, the charging status display method may further include: if the status information of any first charging gun changes, then re-determine the L first charging guns from the N first charging guns based on the status information of each first charging gun.

[0099] When the display screen only shows the first interface corresponding to a portion of the first charging guns, if the status information of any first charging gun changes (for example, from idle state to charging state), the controller needs to reselect L first charging guns according to the new status information of each first charging gun, and control the display screen to display the first interface corresponding to the reselected L first charging guns.

[0100] As an example, suppose the first charging device is connected to six charging guns (charging gun 1 to charging gun 6), and the controller controls the display screen to only cycle through the first interface corresponding to the charging gun that is currently charging. If initially four charging guns are charging (e.g., charging guns 1, 3, 4, and 5), the controller will select the first interfaces corresponding to these four charging guns for cycling. At this time, the display screen will cycle through the status information of charging guns 1, 3, 4, and 5. If charging gun 2 is connected by a new user and starts charging, the controller will immediately detect this status change and dynamically adjust the cycle queue in the next cycle, adding the first interface corresponding to charging gun 2 to the cycle sequence, increasing the number of cycled first interfaces from four to five (i.e., charging guns 1, 2, 3, 4, and 5). Similarly, if a charging gun finishes charging (e.g., charging gun 5 stops charging), the controller will remove it from the cycle queue, potentially reducing the number of cycled first interfaces from five to four.

[0101] This dynamic adjustment mechanism ensures that the display screen is always focused on the required charging gun information. At the same time, by updating the first interface in real time, users can keep abreast of the latest available charging gun positions, which significantly improves the operational efficiency of charging stations and user experience. It can also intelligently optimize information presentation strategies based on actual usage, making the management of charging equipment more flexible and efficient.

[0102] Figure 7 This is the third flowchart of the charging status display method according to an embodiment of this application. Figure 7 As shown, in some embodiments, the charging status display method may further include the following steps:

[0103] Step 710: Obtain the status information of the M second charging guns connected to the second charging device, where M is a positive integer.

[0104] Step 720: Control the display screen to display M second interfaces at different times. The M second interfaces correspond one-to-one with the M second charging guns. Each second interface includes a second display element. The second display element in each second interface is used to represent the status information of the corresponding second charging gun. The second display element is highlighted in the second interface.

[0105] It should be noted that the second charging device can be any other charging device in the charging station besides the first charging device; the second charging gun refers to a charging gun that is connected to the second charging device.

[0106] Charging stations typically include multiple charging devices (including integrated charging piles, separate charging hosts, and charging terminals), and these devices may vary in type, such as 360kW charging piles, 20kW charging piles, and 7kW charging piles. 7kW charging piles usually connect to fewer charging guns and may not have a display screen. Therefore, in this embodiment, the charging gun information for this type of charging device is also displayed on the display screen of the first charging device (e.g., a high-power 360kW charging pile). This method effectively saves resources, and users only need to view the display screen of one charging device to obtain relevant information about other charging devices, thereby further improving convenience and user experience.

[0107] In this embodiment, there can be multiple second charging devices, and each second charging device can interact with the first charging device in a network configuration. The controller of the second charging device can send the status information and gun number of the second charging gun connected to it to the controller of the first charging device, so that the controller of the first charging device can control the display screen to show the second interface corresponding to the second charging gun. The status information of the second charging gun may also include (but is not limited to): idle state, charging state, and fault state.

[0108] Similarly, the number of second interfaces can be less than or equal to the number of second charging guns, and each second interface displays only the relevant information of one second charging gun. Different second interfaces are used to display the status information of different second charging guns.

[0109] Specifically, the second interface may include a second display element, which is used to represent the status information of a second charging gun. Furthermore, the second display element is highlighted in the second interface. This highlighting can be achieved by increasing the area of ​​the second display element, making it bold, or placing it in a highlighted area; alternatively, multiple highlighting methods can be used simultaneously.

[0110] In this embodiment, the second display element can be text, numbers, or graphic elements, or a combination of text, numbers, and graphic elements. As an example, if the first display element is used to represent the current state of the second charging gun, the second display element can be words such as "idle," "fault," or "charging," or it can be the vehicle's SOC value (such as "80%)," or it can be a battery graphic element or embed the number "80%" inside the battery graphic, etc.

[0111] In some implementations, the second display element is located in the middle of the second interface, and the area of ​​the second display element is greater than a preset threshold. It should be noted that the preset threshold can be set manually by the staff according to actual needs. For example, the preset threshold can be set to 50%, that is, the ratio of the area of ​​the first display element to the area of ​​the first interface needs to be greater than 50%.

[0112] Similarly, the second display element can be located in the central area of ​​the second interface, and its display area must occupy a proportion greater than a preset threshold. This provides strong visual recognition and increases the user's viewing distance. For specific styles of the second interface, please refer to [reference needed]. Figure 4 , Figure 5 as well as Figure 6 The specific style of the first interface shown in the image will not be described in detail here.

[0113] In this embodiment, the display screen of the first charging device can display L first interfaces and M second interfaces at different times. Similarly, the controller can also control the display screen to rotate through the first interfaces and the second interfaces.

[0114] Figure 8 This is the fourth flowchart of the charging status display method according to an embodiment of this application. Figure 8 As shown, in some embodiments, the charging status display method may further include the following steps:

[0115] Step 810: Obtain the device types of the first charging device and the second charging device.

[0116] Step 820: Determine the carousel frequency of the first interface based on the device type of the first charging device, and determine the carousel frequency of the second interface based on the device type of the second charging device.

[0117] Step 830: Control the display screen to rotate each of the first interface and each of the second interfaces according to the rotation frequency of the first interface and the rotation frequency of the second interface.

[0118] Specifically, the controller of the first charging device can acquire the device types of the first charging device and each of the second charging devices. Device types include, for example, 600A charging terminal, 400A charging terminal, 360kW charging pile, 20kW charging pile, 7kW charging pile, etc. The device types of the first charging device and each of the second charging devices can be manually entered into the controller of the first charging device by staff, or they can be obtained from the controller of the second charging device.

[0119] Furthermore, after obtaining the device types of the first and second charging devices, the controller of the first charging device can determine the carousel frequency of the first interface based on its device type, and determine the carousel frequency of the second interface based on the device type of the second charging device. In this embodiment, the carousel frequency of the interface corresponding to high-power charging devices can be set higher than that of the interface corresponding to low-power charging devices, thereby improving the turnover rate of high-power charging piles. It should be noted that the turnover rate refers to the number of times a charging pile is reused per unit time.

[0120] As an example, if the first charging device is the charging host of a 360kW split-type charging pile, and the second charging device is a 7kW charging pile, then a higher rotation frequency can be set for the first interfaces corresponding to the first charging device, and a lower rotation frequency can be set for the second interfaces corresponding to the second charging device, thereby increasing the turnover rate of the 360kW split-type charging pile. For example, the controller of the first charging device can control the display screen to rotate the first interfaces three times, and then control the display screen to rotate the second interfaces once. The display screen rotates the first and second interfaces in this way, with the rotation frequency of the first interfaces being higher than that of the second interfaces.

[0121] Figure 9 This is the fifth flowchart of the charging status display method according to an embodiment of this application. Figure 9 As shown, in some embodiments, the charging status display method may further include the following steps:

[0122] Step 910: When the first charging device is turned on or the user's touch operation is detected, enter the second display mode.

[0123] Step 920: Based on the second display mode, control the display screen to display the third interface; wherein, the third interface includes N third display elements, and the N third display elements correspond one-to-one with the N first charging guns, and the third display elements are used to represent the relevant information of the corresponding first charging gun.

[0124] It should be noted that the second display mode is the aforementioned normal mode. The difference between the second and first display modes is that the third interface displayed on the screen in the second display mode does not have any highlighted elements, and the third interface can display multiple pieces of information related to the first charging gun.

[0125] Specifically, after the first charging device is powered on, it can enter the second display mode. Alternatively, when the display screen shows the first interfaces in the first display mode, if the controller detects a user touch operation, it can then control the first charging device to enter the second display mode.

[0126] In the second display mode, the controller controls the display screen to show the third interface. It should be noted that in the second display mode, all interfaces displayed on the display screen can be called the third interface, and the third interface does not refer to any specific interface.

[0127] The third interface may include N third display elements, and each of the N third display elements corresponds one-to-one with one of the N first charging guns. That is, each third display element is used to represent the relevant information of a corresponding first charging gun. In the second display mode, the relevant information of the first charging gun may include (but is not limited to): the status information of the first charging gun, payment code, etc. The status information may include (but is not limited to): idle status, plugged-in status, charging status, fault status, and the vehicle's SOC value, etc.

[0128] The third display element refers to the visual component used to intuitively display key information in the human-machine interface of a charging pile. Depending on different information delivery needs and interface design strategies, these elements can be presented individually or in combination in various forms. Specifically, the third display element can be text, numbers, or graphics, or a combination of text, numbers, and graphics. As an example, if the third display element is used to represent the current status of the first charging gun, it could be a combination of a charging gun graphic element and the words "Please insert the gun," a battery graphic element and the words "Charging (50%)," etc.

[0129] Similarly, the controller can send the number, status information and vehicle SOC value of each first charging gun to the display screen, and the display screen will then show the corresponding third interface based on these data.

[0130] As an example, Table 2 is the status information table in the second display mode. Table 2 shows the status information of charging gun 1 to charging gun 4. As shown in Table 2, the status information can be represented by numbers. When the status information of charging gun 1 is 0 and the vehicle SOC value is empty, it indicates that charging gun 1 is in an idle state. At this time, the third display element corresponding to charging gun 1 displayed on the screen can be as follows: Figure 10 The displayed elements are shown.

[0131] If the status information of charging gun 2 is 1 and the vehicle SOC value is the current SOC value of the vehicle being charged (50%), it indicates that charging gun 2 is in charging mode. At this time, the third display element corresponding to charging gun 2 displayed on the screen can be as follows: Figure 11 The displayed elements are shown.

[0132] If the status information of charging gun 3 is 2 and the vehicle's SOC value is empty, it indicates that charging gun 3 is in a fault state. In this case, the third display element corresponding to charging gun 3 displayed on the screen can be as follows: Figure 12 The displayed elements are shown.

[0133] If the charging gun 4's status information is 3 and the vehicle's SOC value is empty, it indicates that the charging gun 4 is inserted into the vehicle and is waiting to start charging. At this time, the display screen can directly show the QR code image information matching the charging gun 4, or it can directly show the card swipe information. Users can use their mobile phones or other mobile terminals to directly scan the code to start charging, or users can place their charging card on the card reader of the first charging device. The card reader will then search for, read, and complete the card swipe to start charging. The third display element corresponding to the charging gun 4 can be as follows: Figure 13 The displayed elements or such Figure 14 The displayed elements are shown.

[0134] Figure 15 This is a schematic diagram of an example third interface of this application. The third interface displayed on the screen can be as follows: Figure 15 The interface shown includes third display elements corresponding to charging guns 1 to 4.

[0135] It should be noted that the card reader of the first charging device can be an RFID card reader. In the charging card types in Table 2, 0 can represent an ID card, 1 can represent an IC card, 2 can represent an M1 card, and 3 can represent a CPU card. This is just an example. The card reader can support all types of charging cards.

[0136] Table 2 Status Information Table in Second Display Mode

[0137] 1 0 null 0 **** 2 1 50％ 1 **** 3 2 null 2 **** 4 3 null 3 ****

[0138] In some implementations, when the first charging gun is in the plug-in ready-to-charge state, the display screen may first display as follows: Figure 13 The third display element, in the form of a QR code, allows users to initiate charging by swiping a card. The user simply clicks the QR code corresponding to the number of the first charging gun. Furthermore, the controller responds to the user's click, controlling the display screen to switch interfaces. The resulting third interface displays as shown below. Figure 14 The third display element shown is in the form of a card swipe.

[0139] Therefore, after the user inserts the first charging gun into the vehicle, the display screen will directly jump to the third interface, which shows a QR code or a card swipe notification element. The user can start charging directly without any additional touch or click. If the user wants to change the payment method, they only need to click the corresponding charging gun's third display element once to quickly switch interfaces. This design makes charging operations simpler and faster, while reducing the error rate caused by user mis-touches due to complex operations, thus further improving the user experience.

[0140] It's worth noting that the first charging guns share a single card reader, meaning they all use the same card reader on the first charging device. This eliminates the need for a separate card reader for each charging gun, thus saving on charging pile production costs. Operation process: When a user selects a target charging gun on the touchscreen, the touchscreen accurately captures the coordinates of the user's click location and transmits this coordinate information to the main controller in real time via the communication interface. The controller uses a coordinate analysis algorithm to determine the selected charging gun number and simultaneously activates the shared RFID card reader to enter card-finding mode. The first charging device guides the user to place the charging card in the shared card reader area through audible and visual prompts (such as a buzzer or LED indicator). After the RFID card reader reads the card information, the controller verifies the card's permissions and initiates the charging process for the corresponding charging gun position.

[0141] In some implementations, in the second display mode, the third interface may include M+N third display elements, wherein the M third display elements can be used to represent the relevant information of each second charging gun. That is, the third interface can display the relevant information of the first charging gun, and can also display the relevant information of each second charging gun of the second charging device. The display method of the relevant information of the second charging gun can refer to the display method of the relevant information of the first charging gun described above, and will not be repeated here.

[0142] In the above embodiments, how to enter the second display mode has been described in detail. The following describes in detail how to enter the first display mode (i.e., the switching process between the first display mode and the second display mode).

[0143] In some implementations, the preset conditions include: no user touch operation is detected within a preset time period, the first charging gun enters a specified state, user manual operation triggers, and / or it is within a preset time period.

[0144] It should be noted that the preset time can be manually set by staff according to actual needs; for example, the preset time can be set to 2 minutes. In addition, the preset time period can also be manually set by staff according to actual needs; for example, the preset time period can be set to 8:00 to 20:00.

[0145] Figure 16 This is a flowchart illustrating the switching between the first display mode and the second display mode in an embodiment of this application.

[0146] like Figure 16 As shown, when no user touch operation is detected within a preset time, the switching process between the first display mode and the second display mode is as follows:

[0147] After the first charging device is powered on, the controller first controls the display screen to display in the second display mode (i.e., normal mode). Furthermore, the controller continuously detects whether the user is performing a touch operation and uses a timer to keep track. If, after a preset time has elapsed since the first charging device was started, the controller does not detect any touch operation from the user, then the controller controls the display screen to display in the first display mode.

[0148] If the controller detects a user touch operation before the preset time has elapsed after the first charging device is started, the controller will control the display screen to continue displaying in the second display mode. Simultaneously with detecting a user touch operation, the controller resets the timer and restarts the timing process, continuing to detect user touch operations. If no user touch operation is detected after the preset time, the controller will control the display screen to display in the first display mode.

[0149] When the display screen is in the first display mode, the controller detects the user's touch operation. At this time, the controller responds to the user's touch operation and controls the display screen to display in the second display mode, that is, to switch the first interface to the third interface.

[0150] The switching logic described above allows for the switching between the first display mode and the second display mode.

[0151] If the preset condition is that the first charging gun enters a designated state, then when the controller detects that any first charging gun or the target first charging gun has entered the designated state, it controls the display screen to display in the first display mode. For example, when the target first charging gun enters the charging state, the controller can control the display screen to display in the first display mode; or, when any first charging gun enters the idle state, the controller can control the display screen to display in the first display mode; or, when any first charging gun enters a fault state, the controller can control the display screen to display in the first display mode.

[0152] If the preset condition is triggered by manual user operation, that is, the user controls the display screen to display in the first display mode via touch operation. Specifically, if the display screen is currently displaying a third interface in the second display mode, and the third interface includes a mode switching control, the user can control the display screen to switch to the first display mode by clicking the mode switching control. The controller then responds to the user's click operation and executes the control to control the display screen to display in the first display mode.

[0153] If the preset condition is that the device is within a preset time period, i.e., the first charging device is within the preset time period, the controller will control the display screen to display in the first display mode. As an example, if the preset time period is from 8:00 to 20:00, then the controller will control the display screen to display in the first display mode between 8:00 and 20:00.

[0154] In this embodiment, the switching process between the first display mode and the second display mode can be triggered by any of the above methods; or the switching process between the first display mode and the second display mode can be triggered after any two or three preset conditions are met.

[0155] Therefore, the charging status display method of this application embodiment, by displaying the charging device display screen in a first display mode, significantly increases the effective viewing distance of the charging device display screen, regardless of whether it is under strong sunlight or in a dim environment. This increases the long-distance observability of the charging device display screen, and in certain application scenarios (especially large charging station scenarios), it can significantly improve the user experience. When a user drives a new energy vehicle to the vicinity of a charging device to charge, the owner needs to select a charging device or charging gun. The user can observe the charging status or SOC value of the charging gun from a distance, or even without getting out of the car. It is easy to determine which charging device is idle or about to finish charging. Therefore, the user can directly choose to charge at that charging device or wait near that charging device or charging gun, thereby reducing the difficulty of selecting a charging device or charging gun. Especially in harsh environments, such as cold weather or rainy weather, it avoids the inconvenience caused by the user having to get out of the car to check the status of the charging device, thus providing a better user experience.

[0156] Based on the above embodiments, this application also provides a charging device, which includes a display screen and a controller; the controller is connected to the display screen and is used to execute the charging status display method as described above.

[0157] In this embodiment, if the charging pile is an integrated charging pile, the charging device can be the integrated charging pile; if the charging pile is a split charging pile, the charging device can be the charging host in the split charging pile or the charging terminal in the split charging pile.

[0158] It should be noted that for details not disclosed in the charging device of this embodiment, please refer to the details disclosed in the embodiment of the charging status display method in this specification, which will not be repeated here.

[0159] Based on the above embodiments, this application also provides a charging system. Figure 17 This is a schematic diagram of the charging system according to an embodiment of this application. Figure 17 As shown, the charging system may include a charging host 110 and at least one charging terminal 120, with the charging host 110 connected to each charging terminal 120. It should be noted that, for ease of demonstration, Figure 17 Only one charging terminal is shown; the connection methods for other charging terminals can be found directly in the provided text. Figure 17 The connection method shown.

[0160] The charging host 110 includes a first display screen 111, a first controller 112, a power distribution device 113, and at least one power module 114. The first controller 112 is connected to the first display screen 111, the power distribution device 113, and each power module 114. The power distribution device 113 is connected to each power module 114. The first controller 112 is used to execute the charging status display method described above. The charging host 110 also includes a first card reader 115.

[0161] The charging terminal 120 includes a second display screen 121, a second controller 122, and at least one charging interface 123. The second controller is connected to both the first controller 112 and the second display screen 121. Each charging interface 123 is connected to a power distribution device 113. The second controller 122 is used to execute the charging status display method described above. The charging terminal 120 also includes a second card reader 124.

[0162] In some implementations, the first display screen is used to display each first interface or third interface corresponding to each charging terminal, and the second display screen is used to display each first interface or third interface of the corresponding charging terminal.

[0163] Specifically, the first display screen of the charging host can display multiple carousel interfaces of all charging terminals connected to it, such as the first interface or third interface of each charging terminal, so that users can know the status of the first charging guns connected to all charging terminals under the charging host through the first display screen. The second display screen of the charging terminal only needs to display its own carousel interface, such as the first interface or third interface of all the first charging guns connected to the charging terminal.

[0164] In addition, the power module 114 is used to convert the AC power of the power grid into DC power and provide it to the charging interface 123. The controller is also used to obtain the power demand of each charging interface 123 and generate a scheduling command according to the connection relationship of the controllable switches in the power distribution device 113 and the power demand. The power distribution device 113 is used to control the opening or closing of the controllable switches according to the scheduling command so as to distribute the output power of each power module 114 to each charging interface 123.

[0165] It should be noted that for details not disclosed in the charging system of this embodiment, please refer to the details disclosed in the embodiments of the charging status display method in this specification, which will not be repeated here.

[0166] Based on the above embodiments, the present invention also provides a non-transitory computer-readable storage medium storing a computer program thereon. When the computer program is executed by a processor, it implements the charging status display method provided by the above methods. The method includes: entering a first display mode when preset conditions are met; and controlling the display screen to display L first interfaces at different times based on the first display mode. Wherein, L is a positive integer and L≤N, the L first interfaces correspond one-to-one with L of the N first charging guns, and each first interface includes a first display element associated with the corresponding first charging gun, and the first display element is highlighted in the first interface.

[0167] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0168] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0169] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for displaying charging status, characterized in that, The method, applied to a first charging device including a display screen, is used to provide power output to N first charging guns, where N is a positive integer, and includes: If the preset conditions are met, the system will enter the first display mode. Based on the first display mode, the display screen is controlled to display L first interfaces at different times; where L is a positive integer and L≤N, the L first interfaces correspond one-to-one with the L first charging guns among the N first charging guns, and each first interface includes a first display element associated with the corresponding first charging gun, and the first display element is highlighted in the first interface. The display screen is a touch-sensitive display screen; the method further includes: When the first charging device is turned on or a user touch operation is detected, the second display mode is entered; Based on the second display mode, the display screen is controlled to display a third interface; wherein, the third interface includes N third display elements, and the N third display elements correspond one-to-one with the N first charging guns, and the third display elements are used to represent the relevant information of the corresponding first charging gun.

2. The charging status display method according to claim 1, characterized in that, When L equals N, controlling the display screen to display L first interfaces at different times includes: The display screen is controlled to rotate through the first interface at different times.

3. The charging status display method according to claim 2, characterized in that, The control of the display screen to rotate through the first interfaces at different times includes: Based on the status information of each of the first charging guns, determine the carousel frequency of each of the first interfaces; The display screen is controlled to rotate through each of the first interfaces at different times based on the rotation frequency of each of the first interfaces.

4. The charging status display method according to claim 1, characterized in that, The control of the display screen to display L first interfaces at different times includes: Based on the status information of each first charging gun, determine L first charging guns from N first charging guns; The display screen is controlled to rotate through the L first interfaces corresponding to the L first charging guns at different times.

5. The charging status display method according to claim 4, characterized in that, The status information includes one or more of idle status, charging status, fault status, and vehicle SOC value, and the first display element includes a combination of one or more of text, numbers, and graphic elements used to represent the status information.

6. The charging status display method according to claim 4, characterized in that, After controlling the display screen to rotate through the L first interfaces corresponding to the L first charging guns at different times, the method further includes: If the status information of any first charging gun changes, then L first charging guns are re-determined from the N first charging guns based on the status information of each first charging gun.

7. The charging status display method according to claim 1, characterized in that, The method further includes: Obtain the status information of the M second charging guns connected to the second charging device, where M is a positive integer; The display screen is controlled to display M second interfaces at different times, wherein each of the M second interfaces corresponds to one of the M second charging guns. Each second interface includes a second display element, and the second display element in each second interface is used to represent the status information of the corresponding second charging gun. The second display element is highlighted in the second interface.

8. The charging status display method according to claim 7, characterized in that, The method further includes: Obtain the device types of the first charging device and the second charging device; The frequency of the first interface is determined according to the device type of the first charging device, and the frequency of the second interface is determined according to the device type of the second charging device. The display screen is controlled to rotate through each of the first and second interfaces according to the rotation frequency of the first interface and the second interface.

9. The charging status display method according to any one of claims 1 to 8, characterized in that, The display screen is a touch-sensitive display screen; The preset conditions include: no user touch operation is detected within a preset time period, the first charging gun enters a specified state, user manual operation triggers, and / or it is within a preset time period.

10. The charging status display method according to any one of claims 1 to 8, characterized in that, The first display element is located in the middle of the first interface and the area of ​​the first display element is greater than a preset threshold. Wherein, the area ratio of the first display element is the ratio between the area of ​​the first display element and the area of ​​the first interface.

11. A charging device, characterized in that, Includes display screen and controller; The controller is connected to the display screen and is used to execute the charging status display method as described in any one of claims 1 to 10.

12. A charging system, characterized in that, It includes a charging host and at least one charging terminal, wherein the charging host is connected to each of the charging terminals; The charging host includes a first display screen, a first controller, a power distribution device, and at least one power module. The first controller is connected to the first display screen, the power distribution device, and each of the power modules. The power distribution device is connected to each of the power modules. The first controller is used to execute the charging status display method as described in any one of claims 1 to 10. The charging terminal includes a second display screen, a second controller, and at least one charging interface. The second controller is connected to the first controller and the second display screen, respectively. Each of the charging interfaces is connected to the power distribution device. The second controller is used to execute the charging status display method as described in any one of claims 1 to 10.

13. The charging system according to claim 12, characterized in that, The first display screen is used to display each first interface or third interface corresponding to each of the charging terminals, and the second display screen is used to display each first interface or third interface of the corresponding charging terminal.

Images