Battery cell numerical value display method and device and detection equipment

Abstract

The invention is suitable for the technical field of data display, and provides a battery cell numerical value display method and device and detection device.The method is applied to the detection device.The method comprises the steps that communication connection with a target vehicle is established through the detection device, and battery cell data of each battery cell in a battery pack of the target vehicle are obtained; generating a histogram corresponding to the battery pack according to the battery cell data of each battery cell; in response to a received display instruction, displaying the corresponding histogram on a display screen of the detection equipment according to display content indicated by the display instruction; wherein the display instruction is a voltage display instruction used for indicating and displaying a voltage analysis histogram or a temperature display instruction used for indicating and displaying a temperature analysis histogram. The battery cell data is displayed on the display screen of the detection equipment in the form of the histogram, and the voltage and temperature change conditions of the battery cell are visually displayed, so that the detection efficiency is improved.

Description

Technical Field

[0001] This application belongs to the technical field of data display, and particularly relates to a method and device for displaying cell values and a detection device. Background Art

[0002] Currently, with the popularization of new energy vehicles, the demand for the detection of the battery safety of new energy vehicles is increasing. Therefore, battery pack detection devices that help users view battery pack safety problems and analyze the reasons have emerged as the times require.

[0003] However, the battery analysis visualization interface and some combined data of existing battery pack detection devices are somewhat unsatisfactory. For example, during the detection period, since the number of battery cells in new energy vehicles is relatively large and the screens of detection devices are relatively small, when all cell units are displayed through the traditional grid layout, the situation where a page cannot be fully displayed often occurs. When the voltage value or temperature value of the cell changes, it is not intuitive enough, and it will be tiring to look at for a long time, resulting in low work efficiency. Summary of the Invention

[0004] The embodiments of this application provide a method and device for displaying cell values and a detection device, which can solve the problems that when the existing battery pack detection device displays the cell value status through the traditional grid layout, there are problems such as incomplete display, non-intuitive numerical change, and low detection efficiency due to the large number of battery pack cells in new energy vehicles and the relatively small screens of existing battery pack detection devices.

[0005] In a first aspect, the embodiments of this application provide a method for displaying cell values, which is applied to a detection device. The detection device establishes a communication connection with a target vehicle. The method includes:

[0006] Obtain the cell data of each cell in the battery pack of the target vehicle, where the cell data includes at least one of the following: unit serial number, voltage value, temperature value;

[0007] Generate a bar chart corresponding to the battery pack according to the cell data of each cell; where the bar chart includes at least one of the following: a voltage analysis bar chart for characterizing the voltage change of the cell, a temperature analysis bar chart for characterizing the temperature of the cell;

[0008] In response to the received display instruction, display the corresponding bar chart on the display screen of the detection device according to the display content indicated by the display instruction; where the display instruction is a voltage display instruction for instructing to display the voltage analysis bar chart or a temperature display instruction for instructing to display the temperature analysis bar chart.

[0009] In a possible implementation of the first aspect, generating the bar chart corresponding to the battery pack according to the cell data of each cell includes:

[0010] According to the voltage conversion rule, convert the voltage value of each cell into a first floating-point value corresponding to each voltage value;

[0011] According to the temperature conversion rule, convert the temperature value of each cell into a second floating-point value corresponding to each temperature value;

[0012] Display the first floating-point value or the second floating-point value in the form of a bar chart to generate the voltage analysis bar chart or the temperature analysis bar chart of the battery pack.

[0013] In a possible implementation of the first aspect, after displaying the corresponding bar chart on the display screen of the detection device according to the display content indicated by the display instruction, the method further includes:

[0014] In the voltage analysis bar chart or the temperature analysis bar chart, display the numerical states of the voltage values or temperature values of multiple cells through different preset colors, where the numerical states include at least one of the following: normal state, highest state, lowest state, abnormal state.

[0015] In a possible implementation of the first aspect, displaying the numerical states of the voltage values or temperature values of multiple cells through different preset colors includes:

[0016] According to the voltage values of the multiple cells being in the voltage reference value range or the temperature values being in the temperature reference value range, determine that the numerical states of the voltage values or temperature values of the multiple cells are in the normal state, and then display the multiple cells with the numerical state of the normal state through a first preset color;

[0017] According to the voltage value or temperature value being the highest value among the multiple cells with the numerical state of the normal state, determine that the numerical states of the multiple cells are in the highest state, and then display the multiple cells with the numerical state of the highest state through a second preset color;

[0018] According to the voltage value or temperature value being the lowest value among the multiple cells with the numerical state of the normal state, determine that the numerical states of the multiple cells are in the lowest state, and then display the multiple cells with the numerical state of the lowest state through a third preset color;

[0019] If the voltage values of the multiple battery cells are not within the voltage reference value range or the temperature values are not within the temperature reference value range, determine that the numerical status of the voltage values or temperature values of the multiple battery cells is an abnormal status, and then display the multiple battery cells with the abnormal numerical status in a fourth preset color.

[0020] In a possible implementation manner of the first aspect, before displaying the numerical status of the voltage values or temperature values of the multiple battery cells in different preset colors, the method further includes:

[0021] In response to a received voltage customization instruction, display a voltage customization reference value interface on the display screen to enable the user to set or select the voltage reference value range of the battery cells; wherein, the voltage customization reference value interface includes at least one of the following: a voltage minimum value input box, a voltage maximum value input box, a lithium iron phosphate battery voltage reference box, a ternary lithium battery voltage reference box, and a nickel-metal hydride battery voltage reference box;

[0022] In response to a received temperature customization instruction, display a temperature customization reference value interface on the display screen to enable the user to set or select the temperature reference value range of the battery cells; wherein, the temperature customization reference value interface includes at least one of the following: a temperature minimum value input box, a temperature maximum value input box, a lithium iron phosphate battery temperature reference box, a ternary lithium battery temperature reference box, and a nickel-metal hydride battery temperature reference box.

[0023] In a possible implementation manner of the first aspect, after displaying the corresponding bar chart on the display screen of the detection device according to the display content indicated by the display instruction, the method further includes:

[0024] In response to a received touch perception event of the user on the voltage analysis bar chart or the temperature analysis bar chart, determine the display ratio of the voltage analysis bar chart or the temperature analysis bar chart according to the dragging span value when the user touches, and adjust the voltage analysis bar chart or the temperature analysis bar chart according to the display ratio.

[0025] In a possible implementation manner of the first aspect, after displaying the corresponding bar chart on the display screen of the detection device according to the display content indicated by the display instruction, the method further includes:

[0026] In response to a received click event of the user on a bar unit in the voltage analysis bar chart or the temperature analysis bar chart, determine the battery cell data corresponding to the bar unit according to the clicked bar unit, and display the unit serial number, voltage value, or temperature value corresponding to the battery cell.

[0027] In a possible implementation of the first aspect, after the bar chart corresponding to the display content indicated by the display instruction is displayed on the display screen of the detection device, the method further includes:

[0028] In response to the received full-screen instruction, perform full-screen display of the voltage analysis bar chart or the temperature analysis bar chart, and

[0029] When the voltage analysis bar chart or the temperature analysis bar chart is in a dense display state, display the corresponding cell serial number below the bar units in the voltage analysis bar chart or the temperature analysis bar chart at every preset span value;

[0030] When the voltage analysis bar chart or the temperature analysis bar chart is in a non-dense display state, display the corresponding cell serial number below each bar unit in the voltage analysis bar chart or the temperature analysis bar chart.

[0031] In a second aspect, an embodiment of the present application provides a cell numerical value display device, which is applied to a detection device, and the detection device establishes a communication connection with a target vehicle. The device includes:

[0032] An acquisition module, configured to acquire cell data of each cell in the battery pack of the target vehicle, where the cell data includes at least one of the following: cell serial number, voltage value, temperature value;

[0033] A generation module, configured to generate a bar chart corresponding to the battery pack according to the cell data of each cell; where the bar chart includes at least one of the following: a voltage analysis bar chart for characterizing the voltage change of the cell, a temperature analysis bar chart for characterizing the temperature of the cell;

[0034] A display module, configured to, in response to a received display instruction, display the corresponding bar chart on the display screen of the detection device according to the display content indicated by the display instruction; where the display instruction is a voltage display instruction for instructing to display a voltage analysis bar chart or a temperature display instruction for instructing to display a temperature analysis bar chart.

[0035] In a third aspect, an embodiment of the present application provides a detection device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the cell numerical value display method described in any one of the above is implemented.

[0036] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the cell numerical value display method described in any one of the above is implemented.

[0037] In a fifth aspect, an embodiment of the present application provides a computer program product. When the computer program product runs on a terminal device, the terminal device is caused to execute the cell value display method described in any one of the first aspects above.

[0038] The beneficial effects of the embodiments of the present application compared with the prior art are as follows:

[0039] An embodiment of the present application provides a cell value display method. The method is applied to a detection device. By establishing a communication connection between the detection device and a target vehicle, cell data of each cell in the battery pack of the target vehicle is obtained. The cell data includes at least one of the following: unit serial number, voltage value, temperature value. According to the cell data of each cell, a bar chart corresponding to the battery pack is generated. The bar chart includes at least one of the following: a voltage analysis bar chart for characterizing the voltage change of the cell, a temperature analysis bar chart for characterizing the temperature of the cell. In response to a received display instruction, the corresponding bar chart is displayed on the display screen of the detection device according to the display content indicated by the display instruction. The display instruction is a voltage display instruction for instructing to display the voltage analysis bar chart or a temperature display instruction for instructing to display the temperature analysis bar chart. By displaying the cell data of the cell in the form of a bar chart on the display screen of the detection device, the voltage and temperature change conditions of the cell are intuitively displayed, thereby improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0041] Figure 1 is a flowchart of a cell value display method provided by an embodiment of the present application;

[0042] Figure 2 is a schematic diagram of a voltage analysis bar chart provided by an embodiment of the present application;

[0043] Figure 3 is a schematic diagram of a voltage custom reference value interface provided by an embodiment of the present application;

[0044] FIG. 4(a) is a reduced schematic diagram of a voltage analysis bar chart provided by an embodiment of the present application;

[0045] FIG. 4(b) is an enlarged schematic diagram of a voltage analysis bar chart provided by an embodiment of the present application;

[0046] Figure 5 It is a schematic diagram of the display voltage value of a columnar unit provided by an embodiment of the present application;

[0047] Figure 6 It is a full-screen schematic diagram of a voltage analysis bar chart provided by an embodiment of the present application;

[0048] Figure 7(a) is a schematic diagram of the temperature unit being metric in a temperature analysis bar chart provided by an embodiment of the present application;

[0049] Figure 7(b) is a schematic diagram of the temperature unit being imperial in a temperature analysis bar chart provided by an embodiment of the present application;

[0050] Figure 8 It is a schematic diagram of the structure of a battery cell numerical display device provided by an embodiment of the present application;

[0051] Figure 9 It is a schematic diagram of the structure of a detection device provided by an embodiment of the present application. Detailed implementation manners

[0052] In the following description, for the purpose of illustration rather than limitation, specific details such as specific system structures and technologies are presented to thoroughly understand the embodiments of the present application. However, those skilled in the art should clearly understand that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from interfering with the description of the present application.

[0053] It should be understood that when used in the specification of the present application and the appended claims, the term "comprising" indicates the presence of the described features, wholes, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or their combinations.

[0054] It should also be understood that the term " / and" as used in the specification of the present application and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0055] As used in the specification and appended claims of this application, the term "if" can be interpreted as "when" or "once" or "in response to determining" or "in response to detecting" depending on the context. Similarly, the phrases "if determined" or "if [the described condition or event] is detected" can be interpreted as meaning "once determined" or "in response to determining" or "once [the described condition or event] is detected" or "in response to detecting [the described condition or event]" depending on the context.

[0056] In addition, in the description of the specification and appended claims of this application, the terms "first", "second", "third", etc. are only used for differential description and cannot be construed as indicating or implying relative importance.

[0057] References to "one embodiment" or "some embodiments" or the like described in the specification of this application mean that a specific feature, structure, or characteristic described in connection with that embodiment is included in one or more embodiments of this application. Thus, statements such as "in one embodiment", "in some embodiments", "in other some embodiments", "in still other embodiments", etc. that appear in different places in this specification do not necessarily all refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in another way. The terms "comprising", "including", "having" and their variants all mean "including but not limited to", unless otherwise specifically emphasized in another way.

[0058] Currently, detection devices for detecting the safety performance of battery packs of new energy vehicles have been popularized, but the battery analysis visualization interface and some combined data are still not satisfactory. For example, during the detection period, since the number of battery cells in the battery pack of new energy vehicles is relatively large and the screens of detection devices are relatively small, it is often impossible to display the status of all battery cells in one layout by the traditional grid layout. When the voltage value of the battery cell changes, it is not intuitive enough, and it will be quite tiring to look at for a long time, resulting in low detection efficiency.

[0059] In view of the above situation, this application provides a method for displaying the values of battery cells of a battery pack. This method can display the status of all battery cells on one screen of the detection device through a bar chart, and can also display the default specified number of battery cells. At the same time, when the value of each battery cell changes, its corresponding bar chart can also change its shape in real time according to the value change, so that it is possible to determine whether the status of the battery cell is normal through the shape change of the bar chart, making the display of the battery cell values more intuitive.

[0060] Please refer to Figure 1 , Figure 1 is a schematic flowchart of a method for displaying the values of battery cells provided by an embodiment of this application. This method is applied to a detection device, and the detection device establishes a communication connection with a target vehicle. The method for displaying the values of battery cells includes:

[0061] S11. Obtain the cell data of each cell in the battery pack of the target vehicle, where the cell data includes at least one of the following: cell serial number, voltage value, temperature value.

[0062] S12. Generate a bar chart corresponding to the battery pack according to the cell data of each cell; wherein, the bar chart includes at least one of the following: a voltage analysis bar chart for characterizing the voltage change of the cell, a temperature analysis bar chart for characterizing the temperature of the cell.

[0063] S13. In response to the received display instruction, display the corresponding bar chart on the display screen of the detection device according to the display content indicated by the display instruction; wherein, the display instruction is a voltage display instruction for instructing to display the voltage analysis bar chart or a temperature display instruction for instructing to display the temperature analysis bar chart.

[0064] It should be noted that this method is mainly applied to the detection device for the safety performance of the battery pack in new energy vehicles, including but not limited to the battery pack in new energy vehicles.

[0065] It should be noted that in this embodiment, the execution subject can be a terminal device such as a server, and no specific limitation is made thereto.

[0066] In this embodiment, first, establish a communication connection between the detection device and the target vehicle, where the target vehicle is the vehicle that needs to detect the safety performance of the battery pack. After that, the detection device obtains the cell data of each cell in its battery pack from the target vehicle. The cell data is the relevant information reflecting each cell in the battery pack, and may include but not limited to the cell serial number, voltage value, temperature value; the cell serial number is the serial number identifying each cell, the voltage value reflects the voltage condition of each cell, and the temperature value reflects the temperature condition of each cell. After obtaining the cell data of each cell, generate a bar chart of the battery pack according to the cell data of each cell. Then, after receiving the display instruction triggered by the user, display the display content indicated by the display instruction on the display screen of the detection device through the bar chart.

[0067] The voltage analysis bar chart is a bar chart showing the voltage change of the cell, and the temperature analysis bar chart is a bar chart showing the temperature change of the cell. Specifically, when the display instruction is a voltage display instruction for instructing to display the voltage change of all cells, display the voltage analysis bar chart on the display screen of the detection device; when the display instruction is a temperature display instruction for instructing to display the temperature change of all cells, display the temperature analysis bar chart on the display screen of the detection device.

[0068] It should be understood that by displaying the voltage analysis histogram or temperature analysis histogram of the battery pack on the display screen of the detection device in real time, the voltage change or temperature change of all the battery cells in the battery pack can be intuitively shown, and the user can directly view the histogram to judge whether the state of the battery cells is normal.

[0069] It can be understood that the battery cell numerical value display method provided in this embodiment is applied to a detection device. By establishing a communication connection between the detection device and the target vehicle, the battery cell data of each battery cell in the battery pack of the target vehicle is obtained. Among them, the battery cell data includes at least one of the following: unit serial number, voltage value, temperature value; according to the battery cell data of each battery cell, a histogram corresponding to the battery pack is generated; among them, the histogram includes at least one of the following: a voltage analysis histogram for characterizing the voltage change of the battery cells, a temperature analysis histogram for characterizing the temperature of the battery cells; in response to the received display instruction, the corresponding histogram is displayed on the display screen of the detection device according to the display content indicated by the display instruction; among them, the display instruction is a voltage display instruction for instructing to display the voltage analysis histogram or a temperature display instruction for instructing to display the temperature analysis histogram. By displaying the battery cell data of the battery cells in the form of a histogram on the display screen of the detection device, the voltage and temperature changes of the battery cells are intuitively shown, thus improving the detection efficiency.

[0070] In a possible implementation manner, generating a histogram corresponding to the battery pack according to the battery cell data of each battery cell includes:

[0071] According to the voltage conversion rule, convert the voltage value of each battery cell into a first floating-point value corresponding to each voltage value.

[0072] According to the temperature conversion rule, convert the temperature value of each battery cell into a second floating-point value corresponding to each temperature value.

[0073] Display the first floating-point value or the second floating-point value in the form of a histogram to generate a voltage analysis histogram or a temperature analysis histogram of the battery pack.

[0074] Specifically, the voltage conversion rule is a rule preset for converting the voltage value of the battery cell into a corresponding floating-point number. The temperature conversion rule is a rule preset for converting the temperature value of the battery cell into a corresponding floating-point number. The first floating-point value is the floating-point number obtained by converting the voltage value of each battery cell according to the voltage conversion rule. In this embodiment, the first floating-point value can be a floating-point number accurate to three decimal places, and its unit is V. The second floating-point value is the floating-point number obtained by converting the temperature value of each battery cell according to the temperature conversion rule. In this embodiment, the second floating-point value can be a floating-point number accurate to one decimal place, and its unit is °C or °F. The unit of the second floating-point value can be selected according to actual needs.

[0075] After converting the voltage value or temperature value into a floating-point number, the voltage value or temperature value of the battery cell is displayed in the form of a bar chart, so as to obtain a voltage analysis bar chart or a temperature analysis bar chart of the battery pack.

[0076] In a possible implementation manner, after displaying the corresponding bar chart on the display screen of the detection device according to the display content indicated by the display instruction, the method further includes:

[0077] In the voltage analysis bar chart or the temperature analysis bar chart, the numerical states of the voltage values or temperature values of multiple battery cells are displayed by different preset colors, where the numerical states at least include one of the following: normal state, highest state, lowest state, abnormal state.

[0078] Specifically, as Figure 2 shown, Figure 2 FIG. 13 is a schematic diagram of a voltage analysis bar chart provided by an embodiment of the present application. Figure 2 In FIG. 13, region A represents the option content of battery pack data analysis, region B represents the summary content of battery pack data, and region C represents the display region of the voltage analysis bar chart or the temperature analysis bar chart of all battery cells in the battery pack. Figure 2 In FIG. 13, the voltage conditions of all battery cells, that is, the numerical states of the voltage values of the battery cells, are displayed by different preset colors in region C. Correspondingly, the numerical states of the temperature values of all battery cells can also be displayed by different preset colors. The numerical state reflects the voltage value condition or temperature value condition of each battery cell in the battery pack, that is, whether the voltage value or temperature value of each battery cell is in a normal state, an abnormal state, a highest state, or a lowest state.

[0079] Specifically, displaying the numerical states of the voltage values or temperature values of multiple battery cells by different preset colors includes:

[0080] If it is determined that the numerical states of the voltage values of multiple battery cells are in the voltage reference value section or the temperature values of multiple battery cells are in the temperature reference value section, the numerical states of the voltage values or temperature values of multiple battery cells are determined to be in the normal state, and then multiple battery cells with the numerical state of the normal state are displayed by the first preset color.

[0081] If it is determined that the numerical state of multiple battery cells is the highest state according to the highest voltage value or temperature value among multiple battery cells with the numerical state of the normal state, then multiple battery cells with the numerical state of the highest state are displayed by the second preset color.

[0082] If it is determined that the numerical state of multiple battery cells is the lowest state according to the lowest voltage value or temperature value among multiple battery cells with the numerical state of the normal state, then multiple battery cells with the numerical state of the lowest state are displayed by the third preset color.

[0083] If the voltage values of multiple battery cells are not within the voltage reference value range or the temperature values are not within the temperature reference value range, it is determined that the numerical status of the voltage values or temperature values of the multiple battery cells is an abnormal status, and then the multiple battery cells with the abnormal numerical status are displayed in a fourth preset color.

[0084] It should be noted that the user can preset a voltage reference value range, which is used to distinguish the numerical status of the voltage values of the battery cells. When the voltage value of a battery cell is within the voltage reference value range, it indicates that the numerical status of the voltage value of this battery cell is normal. At this time, the column unit corresponding to this battery cell in the voltage analysis bar chart is represented by a first preset color. When the voltage value of a battery cell is not within the voltage reference value range, it indicates that the numerical status of the voltage value of this battery cell is abnormal. At this time, the column unit corresponding to this battery cell in the voltage analysis bar chart is represented by a fourth preset color. If among multiple battery cells with a normal numerical status, the voltage values of several battery cells are the highest values, it indicates that the numerical status of the voltage values of these several battery cells is the highest status. At this time, the column units corresponding to these several battery cells in the voltage analysis bar chart are represented by a second preset color. If among multiple battery cells with a normal numerical status, the voltage values of several battery cells are the lowest values, it indicates that the numerical status of the voltage values of these several battery cells is the lowest status. At this time, the column units corresponding to these several battery cells in the voltage analysis bar chart are represented by a third preset color.

[0085] For example Figure 2 in, the first preset color can be green, the second preset color can be red, the third preset color can be blue, and the fourth preset color can be yellow. In this embodiment, the specific colors of the first preset color, the second preset color, the third preset color, and the fourth preset color are not limited.

[0086] Accordingly, the user can also preset a temperature reference value range in advance, which is used to distinguish the numerical status of the temperature value of the battery cell. When the temperature value of the battery cell is within the temperature reference value range, it indicates that the numerical status of the temperature value of the battery cell is normal. At this time, the column unit corresponding to the battery cell in the temperature analysis bar chart is represented by the first preset color. When the temperature value of the battery cell is not within the temperature reference value range, it indicates that the numerical status of the temperature value of the battery cell is abnormal. At this time, the column unit corresponding to the battery cell in the temperature analysis bar chart is represented by the fourth preset color. If among multiple battery cells with a normal numerical status, the temperature values of some battery cells are the highest values, it indicates that the numerical status of the temperature values of these battery cells is the highest status. At this time, the column units corresponding to these battery cells in the temperature analysis bar chart are represented by the second preset color. If among multiple battery cells with a normal numerical status, the temperature values of some battery cells are the lowest values, it indicates that the numerical status of the temperature values of these battery cells is the lowest status. At this time, the column units corresponding to these battery cells in the temperature analysis bar chart are represented by the third preset color.

[0087] It should be noted that the first preset color, the second preset color, the third preset color, and the fourth preset color in the temperature analysis bar chart can be the same as or different from the first preset color, the second preset color, the third preset color, and the fourth preset color in the voltage analysis bar chart, and can be selected according to actual needs.

[0088] It should be understood that by distinguishing the column units corresponding to battery cells with different numerical statuses with colors, the status of all battery cells in the battery pack can be more intuitively displayed to the user, providing a convenient and intuitive operation method for the user, thereby improving the detection efficiency.

[0089] In a possible implementation manner, before displaying the numerical statuses of the voltage values or temperature values of multiple battery cells through different preset colors, the battery cell numerical display method further includes:

[0090] In response to the received voltage custom instruction, a voltage custom reference value interface is displayed on the display screen to enable the user to set or select the voltage reference value range of the battery cell; wherein, the voltage custom reference value interface includes at least one of the following: a voltage minimum value input box, a voltage maximum value input box, a lithium iron phosphate battery voltage reference box, a ternary lithium battery voltage reference box, and a nickel-metal hydride battery voltage reference box.

[0091] In response to the received temperature custom instruction, a temperature custom reference value interface is displayed on the display screen to enable the user to set or select the temperature reference value range of the battery cell; wherein, the temperature custom reference value interface includes at least one of the following: a temperature minimum value input box, a temperature maximum value input box, a lithium iron phosphate battery temperature reference box, a ternary lithium battery temperature reference box, and a nickel-metal hydride battery temperature reference box.

[0092] It should be noted that the voltage customization instruction is an instruction indicating that the voltage reference value range can be set. The user can trigger the voltage customization instruction and set the voltage reference value range through the voltage customization reference value interface. Specifically, when the voltage customization instruction triggered by the user is received, a voltage customization reference value interface will be displayed on the display screen of the detection device for the user to set the voltage reference value range. In this embodiment, as Figure 3 shown, Figure 3 is a schematic diagram of a voltage customization reference value interface provided in an embodiment of the present application. Figure 3 In it, the user can customarily set the minimum value and the minimum value of the voltage reference value range in the minimum voltage input box and the maximum voltage input box in the voltage customization reference value interface; the user can also select the reference boxes corresponding to the battery pack types through the lithium iron phosphate battery voltage reference box, the ternary lithium battery voltage reference box, and the nickel-metal hydride battery voltage reference box provided in the voltage customization reference value interface. Among them, the lithium iron phosphate battery voltage reference box, the ternary lithium battery voltage reference box, and the nickel-metal hydride battery voltage reference box are the default voltage reference value ranges corresponding to each type of battery. As Figure 3 shown, the voltage reference value range of the lithium iron phosphate battery is 2.50V to 3.65V, the voltage reference value range of the ternary lithium battery is 2.80V to 4.02V, and the voltage reference value range of the nickel-metal hydride battery is 0.8V to 1.4V.

[0093] Correspondingly, when the temperature customization instruction triggered by the user is received, a temperature customization reference value interface will be displayed on the display screen of the detection device for the user to set the temperature reference value range. In this embodiment, the user can set the minimum value and the minimum value of the temperature reference value range through the minimum temperature input box and the maximum temperature input box in the temperature customization reference value interface; the user can also select the reference boxes corresponding to the battery pack types through the lithium iron phosphate battery temperature reference box, the ternary lithium battery temperature reference box, and the nickel-metal hydride battery temperature reference box provided in the temperature customization reference value interface. The lithium iron phosphate battery temperature reference box, the ternary lithium battery temperature reference box, and the nickel-metal hydride battery temperature reference box are the default temperature reference value ranges corresponding to each type of battery.

[0094] In a possible implementation manner, after the corresponding bar chart is displayed on the display screen of the detection device according to the display content indicated by the display instruction, the cell numerical value display method further includes:

[0095] In response to the touch perception event of the user on the voltage analysis bar chart or the temperature analysis bar chart received, determine the display ratio of the voltage analysis bar chart or the temperature analysis bar chart according to the dragging span value when the user touches, so as to adjust the voltage analysis bar chart or the temperature analysis bar chart according to the display ratio.

[0096] It should be noted that the display screen of the detection device has touch perception operation. A touch perception event is an event that can be sensed and recorded by the detection device when a user performs a touch operation on the display screen of the detection device. The touch perception event can include various types such as touch start, touch movement, or touch end. The drag span value is the distance or span between the starting point and the ending point of the dragging operation when the user touches and drags on the display screen of the detection device. This drag span value can represent the amplitude of the user's dragging action when touching the display screen. Through this drag span value, the display ratio of the bar chart can be determined, that is, the scaling ratio when the bar chart is displayed on the display screen of the detection device. By adjusting this display ratio, the display of the size, value range, etc. of the bar chart can be changed.

[0097] Specifically, when receiving a touch perception event triggered by the user, according to the drag span value dragged by the user when analyzing the voltage analysis bar chart or the temperature analysis bar chart, the display ratio for adjusting the voltage analysis bar chart or the temperature analysis bar chart can be determined. Then, according to this display ratio, the voltage analysis bar chart or the temperature analysis bar chart is adjusted to achieve the scaling or magnification of the voltage analysis bar chart or the temperature analysis bar chart. As shown in FIGS. 4(a) and 4(b), FIG. 4(a) is a schematic diagram of reducing a voltage analysis bar chart provided by an embodiment of the present application, and FIG. 4(b) is a schematic diagram of magnifying a voltage analysis bar chart provided by an embodiment of the present application. It can be seen that in FIG. 4(a), the voltage conditions of all battery cells can be displayed. In FIG. 4(b), the voltage conditions of partial battery cells can be displayed, and at the same time, the unit numbers of each battery cell can be displayed in detail.

[0098] It should be understood that in this embodiment, this method allows the user to adjust the display ratio of the bar chart through touch operations, so as to flexibly view and analyze the battery cell data situation, improve the interactivity between the user and the detection device, and enable the user to customize the display method of the bar chart according to their own needs.

[0099] In a possible implementation manner, after the corresponding bar chart is displayed on the display screen of the detection device according to the display content indicated by the display instruction, this battery cell value display method further includes:

[0100] In response to the click event of the user on the bar unit in the voltage analysis bar chart or the temperature analysis bar chart, according to the clicked bar unit, the battery cell data corresponding to the bar unit is determined, and the unit number, voltage value, or temperature value corresponding to the battery cell is displayed.

[0101] It should be noted that a click event is an operation where the user briefly touches a certain area (such as a bar unit in a bar graph) on the display screen of the detection device and then releases the finger. A bar unit is each bar element in the bar unit, representing the voltage value or temperature value of a battery cell.

[0102] Specifically, after receiving the click event, the detection device will trigger a corresponding response action, that is, based on the bar unit clicked by the user, search for and determine the data of the battery cell corresponding to the bar unit, and display the data of the battery cell (such as the unit serial number, voltage value or temperature value) above the corresponding bar unit in the bar graph. As Figure 5 shown, Figure 5 is a schematic diagram showing the display of voltage values for bar units provided by an embodiment of the present application. As Figure 5 shown, the voltage value of the battery cell with unit serial number #52 is 3.289V, and this voltage value is displayed above the bar unit of the battery cell.

[0103] It should be understood that in this embodiment, this method allows the user to obtain and view the detailed data information of the corresponding battery cell by clicking on the bar unit in the bar graph, improving the interactivity between the user and the detection device, and enabling the user to more intuitively understand the status and performance of the battery cell.

[0104] In a possible implementation manner, after displaying the corresponding bar graph on the display screen of the detection device according to the display content indicated by the display instruction, this battery cell value display method further includes:

[0105] In response to the received full-screen instruction, display the voltage analysis bar graph or the temperature analysis bar graph in full screen, and,

[0106] When the voltage analysis bar graph or the temperature analysis bar graph is in a dense display state, display the unit serial number of the corresponding battery cell below the bar units in the voltage analysis bar graph or the temperature analysis bar graph at every preset span value.

[0107] When the voltage analysis bar graph or the temperature analysis bar graph is in a non-dense display state, display the unit serial number of the corresponding battery cell below each bar unit in the voltage analysis bar graph or the temperature analysis bar graph.

[0108] It should be noted that the full-screen instruction is used to instruct the display screen of the detection device to display the voltage analysis bar graph or the temperature analysis bar graph in full screen. That is, switch the voltage analysis bar graph or the temperature analysis bar graph to the full-screen mode so that the user can view the details of the bar graph more clearly. As Figure 6 shown, Figure 6 is a full-screen schematic diagram of a voltage analysis bar graph provided by an embodiment of the present application. Comparing Figure 6 and Figure 2 it can be seen thatFigure 6 When receiving a full-screen instruction, Figure 2 hide areas A and B in

[0109] The dense display state means that the bar units in the bar chart are so dense that displaying the cell serial number below each bar unit will cause the interface to be crowded. The non-dense display state means that the bar units in the bar chart are relatively sparse, and the cell serial number can be clearly displayed below each bar unit.

[0110] Specifically, when the voltage analysis bar chart or the temperature analysis bar chart is in the dense display state, the cell serial number corresponding to each bar unit will be displayed below every preset span value to avoid information overload. Here, the preset span value is a preset numerical value, that is, how many bar units to display a cell serial number at intervals. When the voltage analysis bar chart or the temperature analysis bar chart is in the non-dense display state, the cell serial number corresponding to each bar unit will be displayed below each bar unit so that the user can clearly identify the cell corresponding to each data point.

[0111] It should be noted that in this embodiment, when displaying the temperature value of the cell, the metric and imperial numerical values and temperature units can also be switched. Specifically, the user can adjust the temperature value to the metric or imperial mode in the interface settings. When switching between metric and imperial, the attributes of the bar units are automatically adjusted to the corresponding numerical values. As shown in FIGS. 7(a) and 7(b), FIG. 7(a) is a schematic diagram of the temperature unit being metric in a temperature analysis bar chart provided by an embodiment of the present application, and FIG. 7(b) is a schematic diagram of the temperature unit being imperial in a temperature analysis bar chart provided by an embodiment of the present application. When the temperature value is displayed in the metric mode, the temperature unit is °C (Celsius); when the temperature value is displayed in the imperial mode, the temperature unit is °F (Fahrenheit). Among them, the numerical conversion formulas are as follows: (1) The formula for converting Celsius to Fahrenheit is: F = C × 1.8 + 32.0; (2) The formula for converting Fahrenheit to Celsius is: C = (F - 32.0) × 5.0 / 9.0; where, F represents the Fahrenheit temperature value, and C represents the Celsius temperature value. For example, if the current temperature value is 20 °C, the corresponding Fahrenheit temperature value is 20 × 1.8 + 32.0 = 68.0 °F; if the current temperature value is 70 °F, the corresponding Celsius temperature value is (70 - 32.0) × 5.0 / 9.0 = 21.1 °C.

[0112] Furthermore, the method further includes that when it is detected that the numerical state of the cell is an abnormal state, an alarm signal is automatically triggered, and the user can be reminded to pay attention in a preset reminder manner on the display screen of the detection device. Here, the preset reminder manner can be an alarm reminder sound, or an alarm reminder graphic, etc., which is not limited in this embodiment.

[0113] It should be understood that the magnitudes of the sequence numbers of the steps in the above embodiments do not mean the order of execution. The order of execution of each process should be determined according to its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0114] A method for displaying cell values corresponding to the above embodiments Figure 8 The structure diagram of a cell value display device provided by an embodiment of the present application is shown. For the sake of convenience of description, only the parts related to the embodiments of the present application are shown.

[0115] Refer to Figure 8 , the cell value display device 3 of this embodiment is applied to a detection device. The detection device establishes a communication connection with the target vehicle. The cell value display device 3 includes:

[0116] An acquisition module 31, configured to acquire cell data of each cell in the battery pack of the target vehicle, where the cell data includes at least one of the following: unit serial number, voltage value, temperature value.

[0117] A generation module 32, configured to generate a bar chart corresponding to the battery pack according to the cell data of each cell; where the bar chart includes at least one of the following: a voltage analysis bar chart for characterizing the voltage change of the cell, a temperature analysis bar chart for characterizing the temperature of the cell.

[0118] A display module 33, configured to, in response to a received display instruction, display the corresponding bar chart on the display screen of the detection device according to the display content indicated by the display instruction; where the display instruction is a voltage display instruction for instructing to display the voltage analysis bar chart or a temperature display instruction for instructing to display the temperature analysis bar chart.

[0119] It can be understood that in the cell value display device 3 of this embodiment, the acquisition module 31 acquires the cell data of each cell in the battery pack of the target vehicle, where the cell data includes at least one of the following: unit serial number, voltage value, temperature value; the generation module 32 generates a bar chart corresponding to the battery pack according to the cell data of each cell; where the bar chart includes at least one of the following: a voltage analysis bar chart for characterizing the voltage change of the cell, a temperature analysis bar chart for characterizing the temperature of the cell; the display module 33, in response to the received display instruction, displays the corresponding bar chart on the display screen of the detection device according to the display content indicated by the display instruction; where the display instruction is a voltage display instruction for instructing to display the voltage analysis bar chart or a temperature display instruction for instructing to display the temperature analysis bar chart. By displaying the cell data of the cell in the form of a bar chart on the display screen of the detection device, the voltage and temperature change conditions of the cell are intuitively displayed, thereby improving the detection efficiency.

[0120] Further, the generation module 32 includes:

[0121] A voltage conversion unit, configured to convert the voltage value of each battery cell into a first floating-point value corresponding to each voltage value according to a voltage conversion rule.

[0122] A temperature conversion unit, configured to convert the temperature value of each battery cell into a second floating-point value corresponding to each temperature value according to a temperature conversion rule.

[0123] A bar chart generation unit, configured to display the first floating-point value or the second floating-point value in the form of a bar chart, and generate a voltage analysis bar chart or a temperature analysis bar chart of the battery pack.

[0124] Further, the battery cell numerical display device 3 further includes:

[0125] A color marking module, configured to display the numerical status of the voltage values or temperature values of multiple battery cells through different preset colors in the voltage analysis bar chart or the temperature analysis bar chart, where the numerical status includes at least one of the following: normal status, highest status, lowest status, and abnormal status.

[0126] Further, the color marking module includes:

[0127] A first marking unit, configured to determine that the numerical status of the voltage values or temperature values of multiple battery cells is in a normal status according to that the voltage values of multiple battery cells are in a voltage reference value section or the temperature values are in a temperature reference value section, and then display the multiple battery cells with the numerical status of normal status through a first preset color.

[0128] A second marking unit, configured to determine that the numerical status of multiple battery cells is in a highest status according to that the voltage value or temperature value among the multiple battery cells with the numerical status of normal status is the highest value, and then display the multiple battery cells with the numerical status of highest status through a second preset color.

[0129] A third marking unit, configured to determine that the numerical status of multiple battery cells is in a lowest status according to that the voltage value or temperature value among the multiple battery cells with the numerical status of normal status is the lowest value, and then display the multiple battery cells with the numerical status of lowest status through a third preset color.

[0130] A fourth marking unit, configured to determine that the numerical status of the voltage values or temperature values of multiple battery cells is in an abnormal status according to that the voltage values of multiple battery cells are not in a voltage reference value section or the temperature values are not in a temperature reference value section, and then display the multiple battery cells with the numerical status of abnormal status through a fourth preset color.

[0131] Further, the battery cell numerical display device 3 further includes:

[0132] A voltage customization module, which is used to respond to the received voltage customization instruction and display a voltage customization reference value interface on the display screen, so that the user can set or select the voltage reference value range of the battery cell; wherein, the voltage customization reference value interface includes at least one of the following: a voltage minimum value input box, a voltage maximum value input box, a lithium iron phosphate battery voltage reference box, a ternary lithium battery voltage reference box, and a nickel-metal hydride battery voltage reference box.

[0133] A temperature customization module, which is used to respond to the received temperature customization instruction and display a temperature customization reference value interface on the display screen, so that the user can set or select the temperature reference value range of the battery cell; wherein, the temperature customization reference value interface includes at least one of the following: a temperature minimum value input box, a temperature maximum value input box, a lithium iron phosphate battery temperature reference box, a ternary lithium battery temperature reference box, and a nickel-metal hydride battery temperature reference box.

[0134] Furthermore, the battery cell numerical value display device 3 further includes:

[0135] A zooming module, which is used to respond to the received touch perception event of the user on the voltage analysis bar chart or the temperature analysis bar chart, determine the display ratio of the voltage analysis bar chart or the temperature analysis bar chart according to the dragging span value when the user touches, and adjust the voltage analysis bar chart or the temperature analysis bar chart according to the display ratio.

[0136] Furthermore, the battery cell numerical value display device 3 further includes:

[0137] A numerical value display module, which is used to respond to the received click event of the user on the bar unit in the voltage analysis bar chart or the temperature analysis bar chart, determine the battery cell data of the battery cell corresponding to the clicked bar unit, and display the unit serial number, voltage value or temperature value corresponding to the battery cell.

[0138] Furthermore, the battery cell numerical value display device 3 further includes:

[0139] A full-screen display module, which is used to respond to the received full-screen instruction and display the voltage analysis bar chart or the temperature analysis bar chart in full screen; and,

[0140] A first unit serial number display unit, which is used to display the unit serial number of the corresponding battery cell below the bar unit in the voltage analysis bar chart or the temperature analysis bar chart at every preset span value when the voltage analysis bar chart or the temperature analysis bar chart is in a dense display state.

[0141] A second unit serial number display unit, which is used to display the unit serial number of the corresponding battery cell below each bar unit in the voltage analysis bar chart or the temperature analysis bar chart when the voltage analysis bar chart or the temperature analysis bar chart is in a non-dense display state.

[0142] It should be noted that, for the information interaction, execution process, etc. among the modules in the above-mentioned battery cell numerical value display device 3, since they are based on the same concept as the method embodiments of the present application, for their specific functions and the technical effects brought, reference can be specifically made to the method embodiment part, and details will not be repeated here.

[0143] The embodiments of the present application also provide a detection device, as Figure 9 shown Figure 9 is a schematic structural diagram of a detection device provided by an embodiment of the present application. Referring to Figure 9 , the detection device 4 of this embodiment includes: a memory 41, a processor 42, and a computer program stored in the memory 41 and operable on the processor 42. When the processor 42 executes the computer program, it implements the steps in the method embodiments of the battery cell numerical value display method described in any one of the above.

[0144] The embodiments of the present application also provide a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, it can implement the steps in the above-mentioned various method embodiments.

[0145] The embodiments of the present application provide a computer program product. When the computer program product runs on a mobile terminal, it enables the mobile terminal to implement the steps in the above-mentioned various method embodiments.

[0146] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, to implement all or part of the processes in the method of the above embodiments of the present application, a computer program can be used to instruct relevant hardware to complete. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by a processor, it can implement the steps in the above-mentioned various method embodiments. Among them, the computer program includes computer program code, and the computer program code can be in the form of source code, object code, executable file, or some intermediate form, etc. The computer-readable medium can at least include: any entity or device that can carry the computer program code to the photographing device / terminal device, recording medium, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electrical carrier signal, telecommunication signal, and software distribution medium. For example, a USB flash drive, a mobile hard disk, a magnetic disk, or an optical disc, etc. In some jurisdictions, according to legislation and patent practice, the computer-readable medium may not be an electrical carrier signal and a telecommunication signal.

[0147] In the above embodiments, the descriptions of the various embodiments have their own emphases. For the parts not detailed or recorded in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0148] Those of ordinary skill in the art will recognize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented in electronic hardware, or in a combination of computer software and electronic hardware. Whether these functions are executed in hardware or software depends on the specific application and design constraints of the technical solution. A professional technician can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of this application.

[0149] In the embodiments provided in this application, it should be understood that the disclosed device / network device and method can be implemented in other ways. For example, the device / network device embodiments described above are merely illustrative. For example, the division of modules or units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces. The indirect coupling or communication connection of the device or unit can be in electrical, mechanical or other forms.

[0150] The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they can be located in one place, or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0151] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them; although this application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included in the protection scope of this application.

Claims

1. A method for displaying cell values, characterized in that, Applied to a detection device, the detection device establishes a communication connection with a target vehicle, and the method includes: Obtain the cell data of each cell in the battery pack of the target vehicle, where the cell data includes at least one of the following: unit serial number, voltage value, temperature value; Generate a corresponding bar chart for the battery pack according to the cell data of each cell; where the bar chart includes at least one of the following: a voltage analysis bar chart for characterizing the voltage change of the cell, a temperature analysis bar chart for characterizing the temperature of the cell; In response to the received display instruction, display the corresponding bar chart on the display screen of the detection device according to the display content indicated by the display instruction; where the display instruction is a voltage display instruction for instructing to display a voltage analysis bar chart or a temperature display instruction for instructing to display a temperature analysis bar chart.

2. The method for displaying cell numerical values according to claim 1, wherein, The generating a corresponding bar chart for the battery pack according to the cell data of each cell includes: Convert the voltage value of each cell into a first floating-point value corresponding to each voltage value according to a voltage conversion rule; Convert the temperature value of each cell into a second floating-point value corresponding to each temperature value according to a temperature conversion rule; Display the first floating-point value or the second floating-point value in the form of a bar chart to generate the voltage analysis bar chart or the temperature analysis bar chart of the battery pack.

3. The method for displaying the numerical value of the battery cell according to claim 1, wherein After displaying the corresponding bar chart on the display screen of the detection device according to the display content indicated by the display instruction, the method further includes: In the voltage analysis bar chart or the temperature analysis bar chart, display the numerical states of the voltage values or temperature values of multiple cells through different preset colors, where the numerical states at least include one of the following: normal state, highest state, lowest state, abnormal state.

4. The method for displaying cell numerical values according to claim 3, wherein The displaying the numerical states of the voltage values or temperature values of multiple cells through different preset colors includes: According to the voltage values of multiple cells being in a voltage reference value section or the temperature values being in a temperature reference value section, determine that the numerical states of the voltage values or temperature values of multiple cells are in a normal state, and then display multiple cells with a numerical state of normal state through a first preset color; According to the voltage value or temperature value among multiple cells with a numerical state of normal state being the highest value, determine that the numerical states of multiple cells are in the highest state, and then display multiple cells with a numerical state of highest state through a second preset color; According to the voltage value or temperature value among multiple cells with a numerical state of normal state being the lowest value, determine that the numerical states of multiple cells are in the lowest state, and then display multiple cells with a numerical state of lowest state through a third preset color; According to the voltage values of multiple cells not being in a voltage reference value section or the temperature values not being in a temperature reference value section, determine that the numerical states of the voltage values or temperature values of multiple cells are in an abnormal state, and then display multiple cells with a numerical state of abnormal state through a fourth preset color.

5. The method for displaying cell numerical values according to claim 4, wherein Before displaying the numerical states of the voltage values or temperature values of the multiple battery cells in different preset colors, the method further includes: In response to a received voltage customization instruction, a voltage customization reference value interface is displayed on the display screen to enable a user to set or select the voltage reference value range of the battery cells; wherein, the voltage customization reference value interface includes at least one of the following: a voltage minimum value input box, a voltage maximum value input box, a lithium iron phosphate battery voltage reference box, a ternary lithium battery voltage reference box, and a nickel-metal hydride battery voltage reference box; In response to a received temperature customization instruction, a temperature customization reference value interface is displayed on the display screen to enable the user to set or select the temperature reference value range of the battery cells; wherein, the temperature customization reference value interface includes at least one of the following: a temperature minimum value input box, a temperature maximum value input box, a lithium iron phosphate battery temperature reference box, a ternary lithium battery temperature reference box, and a nickel-metal hydride battery temperature reference box.

6. The method for displaying cell numerical values according to claim 1, wherein, After displaying the corresponding bar chart on the display screen of the detection device according to the display content indicated by the display instruction, the method further includes: In response to a received touch perception event of the user on the voltage analysis bar chart or the temperature analysis bar chart, according to the dragging span value when the user touches, determine the display ratio of the voltage analysis bar chart or the temperature analysis bar chart, and adjust the voltage analysis bar chart or the temperature analysis bar chart according to the display ratio.

7. The method for displaying cell numerical values according to claim 1, characterized in that After displaying the corresponding bar chart on the display screen of the detection device according to the display content indicated by the display instruction, the method further includes: In response to a received click event of the user on a bar unit in the voltage analysis bar chart or the temperature analysis bar chart, determine the battery cell data of the battery cell corresponding to the clicked bar unit, and display the unit serial number, voltage value, or temperature value corresponding to the battery cell.

8. The method for displaying cell numerical values according to claim 1, wherein, After displaying the corresponding bar chart on the display screen of the detection device according to the display content indicated by the display instruction, the method further includes: In response to a received full-screen instruction, display the voltage analysis bar chart or the temperature analysis bar chart in full screen, and When the voltage analysis bar chart or the temperature analysis bar chart is in a dense display state, display the unit serial number of the corresponding battery cell below the bar unit in the voltage analysis bar chart or the temperature analysis bar chart at every preset span value; When the voltage analysis bar chart or the temperature analysis bar chart is in a non-dense display state, display the unit serial number of the corresponding battery cell below each bar unit in the voltage analysis bar chart or the temperature analysis bar chart.

9. A numerical display device for an electric cell, characterized in that, Applied to a detection device, the detection device establishes a communication connection with a target vehicle, and the device includes: An acquisition module, configured to acquire the battery cell data of each battery cell in the battery pack of the target vehicle, wherein the battery cell data includes at least one of the following: unit serial number, voltage value, and temperature value; A generation module, configured to generate a bar chart corresponding to the battery pack according to the cell data of each of the cells; wherein, the bar chart includes at least one of the following: a voltage analysis bar chart for characterizing the voltage change of the cells, and a temperature analysis bar chart for characterizing the temperature of the cells. A display module, configured to, in response to a received display instruction, display the corresponding bar chart on the display screen of the detection device according to the display content indicated by the display instruction; wherein, the display instruction is a voltage display instruction for indicating to display the voltage analysis bar chart or a temperature display instruction for indicating to display the temperature analysis bar chart.

10. A detection device, characterized in that, It includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the method described in any one of claims 1 to 7 is implemented.

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