Temperature monitoring system and temperature monitoring method

Abstract

The invention relates to a temperature monitoring system and method, and the system comprises a temperature collection module and a data analysis module, and the temperature collection module is connected with the data analysis module. The temperature acquisition module comprises at least one moving assembly, at least one temperature acquisition unit is arranged on each moving assembly, and the temperature acquisition unit can move in an area above the surface of the cell stack based on the moving assembly; the temperature acquisition unit is used for acquiring initial temperature data of the surface of the cell stack based on the condition that the mobile assembly moves in an area above the surface of the cell stack; and the data analysis module is used for determining temperature distribution data of the electrolyte in the cell stack according to the initial temperature data and generating a temperature analysis result corresponding to the temperature distribution data.

Description

Technical Field

[0001] This disclosure relates to the field of battery technology, and more specifically, to a temperature monitoring system and a temperature monitoring method. Background Technology

[0002] As an electrochemical reaction device, a fluid battery generates heat during charging and discharging, causing the electrolyte temperature to rise. When the overall or localized temperature of the battery becomes excessively high, fluid circuit blockage may occur, leading to battery malfunction. Therefore, monitoring the battery temperature is necessary to mitigate safety hazards such as overheating.

[0003] Currently, the common method to monitor battery temperature is to install sensors at the inlet and outlet of the electrolyte in the fluid battery. However, this monitoring method has low accuracy and cannot accurately reflect the temperature distribution inside the battery stack, which may still lead to safety issues caused by excessively high battery temperatures. Summary of the Invention

[0004] In order to overcome the problems existing in the related technologies, this disclosure provides a temperature monitoring system and a temperature monitoring method.

[0005] According to a first aspect of the present disclosure, a temperature monitoring system is provided, the system comprising: a temperature acquisition module and a data analysis module, the temperature acquisition module and the data analysis module being connected; the temperature acquisition module comprising at least one moving component, each moving component having at least one temperature acquisition unit disposed thereon, the temperature acquisition unit being capable of moving in an area above the surface of a battery stack based on the moving component; the temperature acquisition unit being configured to acquire initial temperature data of the surface of the battery stack based on the movement of the moving component in the area above the surface of the battery stack; the data analysis module being configured to determine temperature distribution data of the electrolyte inside the battery stack based on the initial temperature data, and generate temperature analysis results corresponding to the temperature distribution data.

[0006] Optionally, the moving component includes a moving track arranged around the battery stack, with the moving track centered on the battery stack. The moving track includes a transverse moving track and a longitudinal moving track, with the track angle between adjacent transverse moving tracks being a first preset angle and the track angle between adjacent longitudinal moving tracks being a second preset angle. The temperature acquisition module is used to determine the number of first tracks for the transverse moving track and the number of second tracks for the longitudinal moving track based on the size information of the battery stack, as well as to determine the number of temperature acquisition units arranged on each moving track and the target sliding speed, and to slide the temperature acquisition units on the moving track at the target sliding speed to acquire the initial temperature data.

[0007] Optionally, the temperature acquisition module is used to generate grayscale image information corresponding to the initial temperature data based on the initial temperature data; the data analysis module is used to input the grayscale image information into a preset temperature model and determine the temperature distribution data of the electrolyte inside the battery stack based on a preset data processing method.

[0008] Optionally, the temperature analysis results include the maximum temperature, minimum temperature, temperature variance, and temperature range of the electrolyte inside the battery stack; the data analysis module is used to determine the maximum temperature, the minimum temperature, the temperature variance, and the temperature range based on the temperature distribution data.

[0009] Optionally, the system further includes: an early warning module; the early warning module is connected to the data analysis module; the early warning module is configured to output a first early warning message when the maximum temperature value is greater than or equal to a first preset temperature threshold; the early warning module is also configured to output a second early warning message when the minimum temperature value is less than or equal to a second preset temperature threshold; the early warning module is also configured to output a third early warning message when the difference between the variance of the temperature variance and the historical temperature variance is greater than or equal to a preset variance difference threshold; the historical temperature variance is used to characterize the temperature variance of the electrolyte temperature inside the battery stack over a historical period; the early warning module is also configured to output a fourth early warning message when the difference between the temperature range and the historical temperature range is greater than or equal to a preset range difference threshold; the historical temperature range is used to characterize the temperature range of the electrolyte temperature inside the battery stack over a historical period.

[0010] Optionally, the size information includes the width and height of the battery stack; the temperature acquisition unit includes a lateral temperature acquisition unit arranged on a lateral moving track and a longitudinal temperature acquisition unit arranged on a longitudinal moving track; the target sliding speed includes a first target sliding speed of the lateral temperature acquisition unit and a second target sliding speed of the longitudinal temperature acquisition unit; the number of temperature acquisition units includes a first number of lateral temperature acquisition units and a second number of longitudinal temperature acquisition units; the temperature acquisition module is used to determine the number of the first track, the first number of units, and the first target sliding speed based on the height of the battery stack; the temperature acquisition module is also used to determine the number of the second track, the second number of units, and the second target sliding speed based on the width of the battery stack.

[0011] Optionally, the temperature acquisition module is configured to, when the width of the battery stack is greater than or equal to a first preset width and less than a second preset width, determine the number of the second tracks as the first preset track number, the number of the second arrangement as the first preset arrangement number, and the second target sliding speed as the first preset sliding speed; or, when the width of the battery stack is greater than or equal to the second preset width and less than a third preset width, determine the number of the second tracks as the second preset track number, the number of the second arrangement as the second preset arrangement number, and the second target sliding speed as the second preset sliding speed; or, when the width of the battery stack is greater than or equal to the third preset width, determine the number of the second tracks as the third preset track number, and the number of the second arrangement as the third preset arrangement number, and the second target sliding speed as the third preset sliding speed; wherein the first preset sliding speed is less than the second preset sliding speed, and the second preset sliding speed is less than the third preset sliding speed.

[0012] Optionally, the area above the surface of the battery stack includes a region 0m-3m above the surface of the battery stack; the temperature acquisition unit is arranged vertically relative to the battery stack.

[0013] According to a second aspect of the present disclosure, a temperature monitoring method is provided, applied to a temperature monitoring system, the system comprising: a temperature acquisition module and a data analysis module, the temperature acquisition module and the data analysis module being connected; the temperature acquisition module comprising at least one moving component, each moving component having at least one temperature acquisition unit disposed thereon, the temperature acquisition unit being capable of moving in an area above the surface of a battery stack based on the moving component; the method comprising: acquiring initial temperature data of the surface of the battery stack based on the movement of the moving component in the area above the surface of the battery stack; determining temperature distribution data of the electrolyte inside the battery stack based on the initial temperature data; and generating a temperature analysis result corresponding to the temperature distribution data.

[0014] Optionally, the moving component includes a moving track arranged around the battery stack, with the moving track centered on the battery stack. The moving track includes a transverse moving track and a longitudinal moving track, with the track angle between adjacent transverse moving tracks being a first preset angle and the track angle between adjacent longitudinal moving tracks being a second preset angle. The step of sliding the temperature acquisition unit on the moving track at a target sliding speed to collect initial temperature data of the battery stack surface includes: determining the number of first transverse moving tracks and the number of second longitudinal moving tracks based on the size information of the battery stack, and determining the number of temperature acquisition units arranged on each moving track and the target sliding speed; and sliding the temperature acquisition unit on the moving track at the target sliding speed to collect the initial temperature data.

[0015] Optionally, determining the temperature distribution data of the electrolyte inside the battery stack based on the initial temperature data includes: generating grayscale image information corresponding to the initial temperature data based on the initial temperature data; inputting the grayscale image information into a preset temperature model; and determining the temperature distribution data of the electrolyte inside the battery stack based on a preset data processing method.

[0016] The above technical solution allows for the deployment of a temperature acquisition unit that can move based on a movable component above the surface of the battery stack. By moving this unit along the movable component, initial temperature data of the battery stack surface is collected. Based on this initial temperature data, the temperature distribution data of the electrolyte inside the battery stack is determined, and corresponding temperature analysis results are generated. This allows for the determination of the electrolyte temperature distribution within the battery stack by collecting temperature data from its surface, improving the accuracy of temperature monitoring. Furthermore, using a movable temperature acquisition unit above the battery stack surface enhances the real-time performance of temperature monitoring and reduces monitoring costs.

[0017] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a block diagram illustrating a temperature monitoring system according to an exemplary embodiment of the present disclosure.

[0019] Figure 2 It is based on Figure 1 The diagram shows a structural schematic of a temperature acquisition module.

[0020] Figure 3 This is a block diagram illustrating another temperature monitoring system according to an exemplary embodiment of the present disclosure.

[0021] Figure 4 This is a flowchart illustrating a temperature monitoring method according to an exemplary embodiment of the present disclosure.

[0022] Explanation of reference numerals in the attached figures 1011a - Lateral moving track; 1011b - Longitudinal moving track; 1012a - Lateral temperature acquisition unit; 1012b - Longitudinal temperature acquisition unit; 200 - Battery stack. Detailed Implementation

[0023] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0024] The terms "first," "second," etc., used in the disclosed specification, claims, and the aforementioned drawings are used to distinguish similar objects and should not be construed as referring to a specific order or sequence. Furthermore, in the description of the accompanying drawings, the same reference numerals in different drawings denote the same elements.

[0025] In the description of this disclosure, unless otherwise stated, "multiple" means two or more, and other quantifiers are similar; "at least one," "one or more," or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one 'a' can represent any number of 'a's; as another example, one or more of a, b, and c can represent: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple; "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone, where A and B can be singular or plural. The character " / " indicates that the preceding and following related objects are in an "or" relationship.

[0026] In related technologies, fluid batteries, as electrochemical reaction devices, experience heat accumulation during charging and discharging, causing the electrolyte temperature to rise. When the overall or localized temperature of the battery becomes excessively high, fluid circuit blockage may occur, leading to battery malfunction. Therefore, monitoring the battery temperature is necessary to mitigate safety hazards such as overheating. Currently, temperature monitoring typically involves installing sensors at the electrolyte inlet and outlet of the fluid battery. However, this monitoring method has low accuracy and cannot accurately reflect the internal temperature distribution of the battery stack, potentially leading to safety issues caused by overheating.

[0027] Therefore, to overcome the problems existing in related technologies, this disclosure provides a temperature monitoring system and method. A temperature acquisition unit, movable based on a moving component, is arranged above the surface of the battery stack. By moving the temperature acquisition unit on the moving component, initial temperature data of the battery stack surface is collected. Based on the collected initial temperature data, the temperature distribution data of the electrolyte inside the battery stack is determined, and temperature analysis results corresponding to the temperature distribution data are generated. In this way, the temperature distribution of the electrolyte inside the battery stack can be determined by collecting temperature data from the battery stack surface, improving the accuracy of temperature monitoring. Simultaneously, by collecting the temperature of the battery stack surface using a movable temperature acquisition unit, the real-time performance of temperature monitoring can be improved, and monitoring costs can be reduced.

[0028] The present disclosure will now be described in conjunction with specific embodiments.

[0029] Figure 1 This is a block diagram illustrating a temperature monitoring system according to an exemplary embodiment of the present disclosure, such as... Figure 1 As shown, the temperature monitoring system 100 includes a temperature acquisition module 101 and a data analysis module 102, which are connected. The temperature acquisition module 101 includes at least one moving component 1011, and at least one temperature acquisition unit 1012 is arranged on each moving component 1011. The temperature acquisition unit 1012 is capable of moving in the area above the surface of the battery stack based on the moving component 1011. The temperature acquisition unit 1012 is used to acquire initial temperature data of the surface of the battery stack based on the movement of the moving component 1011 in the area above the surface of the battery stack. The data analysis module 102 is used to determine the temperature distribution data of the electrolyte inside the battery stack based on the initial temperature data, and generate temperature analysis results corresponding to the temperature distribution data.

[0030] The temperature acquisition unit 1012 may include an infrared temperature sensor or a diaphragm temperature sensor. The temperature acquisition unit 1012 has data acquisition and data transmission functions. It can acquire the initial temperature data of the surface of the battery stack in real time and transmit the acquired initial temperature data to the data analysis module 102 through wireless communication technologies such as Wi-Fi or 4G / 5G. The data analysis module 102 can then determine the temperature distribution data of the electrolyte inside the battery stack based on the initial temperature data and generate the temperature analysis results corresponding to the temperature distribution data.

[0031] The above-described scheme allows for the deployment of temperature acquisition units that can move based on a movable component above the battery stack surface. By moving these units along the movable component, initial temperature data of the battery stack surface is collected. Based on this initial temperature data, the temperature distribution data of the electrolyte inside the battery stack is determined, and corresponding temperature analysis results are generated. This approach improves the accuracy of temperature monitoring by determining the temperature distribution of the electrolyte inside the battery stack through the acquisition of temperature data from its surface. Furthermore, using a movable temperature acquisition unit above the battery stack surface enhances the real-time performance of temperature monitoring and reduces monitoring costs.

[0032] In some embodiments, such as Figure 2 As shown, the moving component may include a moving track arranged around the battery stack as the center. The moving track includes a horizontal moving track 1011a and a vertical moving track 1011b. The track angle between adjacent horizontal moving tracks 1011a is a first preset angle, and the track angle between adjacent vertical moving tracks 1011b is a second preset angle. The temperature acquisition module 101 is used to determine the first number of horizontal moving tracks 1011a and the second number of vertical moving tracks 1011b based on the size information of the battery stack, as well as to determine the number of temperature acquisition units 1012 arranged on each moving track and the target sliding speed, and to slide the temperature acquisition units 1012 on the moving track at the target sliding speed to acquire the initial temperature data.

[0033] The battery stack may include a cuboid battery stack, and the shape of the moving track may include any one of a rectangle, a circle, or an ellipse. The geometric center point of the moving track, for example, the center of a circular track, is the center of the battery stack. The first preset angle... The range of values ​​is The range of values ​​for the second preset included angle is: The temperature acquisition unit 1012 can slide along the moving track in a clockwise direction or in a counterclockwise direction.

[0034] Additionally, this dimensional information includes the width x and height z of the battery stack, which can be referenced. Figure 2 In the coordinate system, the x-axis represents the width of the battery stack, and the z-axis represents its height. The moving track arranged along the xy-plane is the transverse track, and the track arranged along the xy-plane is the longitudinal track. The target's sliding speed... The first target sliding velocity may include the lateral temperature acquisition unit 1012a. The second target sliding speed of the longitudinal temperature acquisition unit 1012b The number n of the temperature acquisition units 1012 includes the first number of horizontal temperature acquisition units 1012a. The second arrangement number of longitudinal temperature acquisition units 1012b The lateral temperature acquisition unit 1012a can slide around the front, right, back, and left sides of the battery stack to collect initial temperature data for these sides. Similarly, the longitudinal temperature acquisition unit 1012b can slide around the front, top, back, and bottom surfaces of the battery stack to collect initial temperature data for these sides as well. If different temperature acquisition units collect initial temperature data for the same surface—for example, if both the lateral and longitudinal temperature acquisition units 1012a and 1012b collect initial temperature data for the front of the battery stack—the first initial temperature data collected by the lateral unit 1012a and the second initial temperature data collected by the longitudinal unit 1012b can be averaged to obtain a comprehensive initial temperature data for the front, thus improving the accuracy of temperature acquisition.

[0035] In some embodiments, the temperature acquisition module 101 is configured to determine the number of first tracks and the number of first arrangements based on the height z of the battery stack. and the sliding speed of the first target .

[0036] For example, at the height z of the battery stack, the following conditions can be met. In this case, the number of the first orbits is determined to be ,in The range of values ​​is At the same time, the quantity of the first arrangement can be determined. for ,in The range of values ​​is The sliding speed of the first target can be determined. The range of values ​​is Among them Let be the circumference of the transverse moving track 1011a.

[0037] In some embodiments, the temperature acquisition module 101 is further configured to determine the number of second tracks and the number of second arrangements based on the width x of the battery stack. and the sliding speed of the second target .

[0038] The temperature acquisition module 101 is used to determine the number of second tracks as the number of first preset tracks, the number of second arrangements as the number of first preset arrangements, and the second target sliding speed as the first preset sliding speed when the width of the battery stack is greater than or equal to the first preset width and less than the second preset width; or, when the width of the battery stack is greater than or equal to the second preset width and less than the third preset width, to determine the number of second tracks as the number of second preset tracks, the number of second arrangements as the number of second preset arrangements, and the second target sliding speed as the second preset sliding speed; or, when the width of the battery stack is greater than or equal to the third preset width, to determine the number of second tracks as the number of third preset tracks, the number of second arrangements as the number of third preset arrangements, and the second target sliding speed as the third preset sliding speed.

[0039] For example, the width x of the battery stack can satisfy... In the case of, For the first preset width, This is the second preset width. The value can be 0.3 meters. The value can be taken as 0.8 meters, and the number of the second track is determined to be... ,in The range of values ​​is At the same time, the quantity of the second arrangement can be determined. The first preset arrangement quantity ,in The range of values ​​is The sliding speed of the second target can be determined. The first preset sliding speed , The range of values ​​is Among them Let be the circumference of the longitudinal moving track 1011b.

[0040] Correspondingly, the width x of the battery stack can satisfy... In the case of, This is the second preset width. For the third preset width, A value of 0.8 meters is acceptable. The value can be taken as 1.5 meters, and the number of the second track is determined as follows. ,in The range of values ​​is At the same time, the quantity of the second arrangement can be determined. For the second preset arrangement quantity ,in The range of values ​​is The sliding speed of the second target can be determined. For the second preset sliding speed , The range of values ​​is Among them Let be the circumference of the longitudinal moving track 1011b.

[0041] Correspondingly, the width x of the battery stack can satisfy... In the case of, For the third preset width, The value can be taken as 2.5 meters, and the number of the second track is determined as follows. ,in The range of values ​​is At the same time, the quantity of the second arrangement can be determined. For the second preset arrangement quantity ,in The range of values ​​is The sliding speed of the second target can be determined. For the third preset sliding speed , The range of values ​​is Among them Let be the circumference of the longitudinal moving track 1011b.

[0042] It should be noted that this first preset sliding speed Less than the second preset sliding speed The second preset sliding speed Less than the third preset sliding speed This allows us to determine the number of temperature acquisition units and their sliding speed by referring to the size information of the battery stack, thereby improving the accuracy of temperature acquisition.

[0043] In some embodiments, the temperature acquisition module 101 is used to generate grayscale image information corresponding to the initial temperature data based on the initial temperature data; the data analysis module 102 is used to input the grayscale image information into a preset temperature model and determine the temperature distribution data of the electrolyte inside the battery stack based on a preset data processing method.

[0044] The temperature acquisition module 101 can partition and process the electrical signals acquired by the temperature acquisition unit 1012 according to the target acquisition area, converting them into temperature data of the surface of the battery stack under test, and displaying it through a grayscale image. The preset temperature model can be a three-dimensional model of the battery stack. The data analysis module 102 can mark the brightness values ​​of different target acquisition areas in the three-dimensional model based on the brightness values ​​of the grayscale image. The preset data processing method can include inverse distance weighted interpolation; detailed steps can be found in related applications of inverse distance weighted interpolation in relevant technologies, and will not be elaborated here. In this way, based on the temperature model and data processing method, the surface temperature data of the battery stack can be analyzed to determine the temperature distribution of the electrolyte inside the battery stack, improving the accuracy of temperature monitoring.

[0045] In some embodiments, the temperature analysis results may include the maximum temperature, minimum temperature, temperature variance, and temperature range of the electrolyte inside the battery stack; the data analysis module 102 is used to determine the maximum temperature, the minimum temperature, the temperature variance, and the temperature range based on the temperature distribution data.

[0046] Specifically, based on the distribution of the electrolyte, m sampling points can be collected at preset intervals, and the temperatures can be denoted as follows: , ... Determine the maximum temperature from the temperatures collected at m data points. and minimum temperature .

[0047] The temperature variance can be calculated using the following formula:

[0048]

[0049] in, Let m be the temperature variance, and m be the number of data collection points. The average temperature value is the sum of the values ​​collected from m data points. For the first Temperature values ​​at each collection point.

[0050] The temperature range can be calculated using the following formula:

[0051] Where R represents the temperature range. This is the maximum value of that temperature. This is the minimum temperature.

[0052] In addition, multiple sampling points in the electrolyte can be collected, and the temperature variance and temperature range can be calculated. The least squares fitting method is used to perform error control processing on the temperature variance and temperature range calculated multiple times, so as to eliminate the random errors that may exist in the single calculation results, and the accuracy of the temperature analysis results is higher.

[0053] In some embodiments, such as Figure 3 As shown, the system 100 further includes: an early warning module 103; the early warning module 103 is connected to the data analysis module 102; the early warning module 103 is used to output a first early warning message when the maximum temperature value is greater than or equal to a first preset temperature threshold; the early warning module 103 is also used to output a second early warning message when the minimum temperature value is less than or equal to a second preset temperature threshold; the early warning module 103 is also used to output a third early warning message when the variance difference between the temperature variance and the historical temperature variance is greater than or equal to a preset variance difference threshold; the early warning module 103 is also used to output a fourth early warning message when the range difference between the temperature range and the historical temperature range is greater than or equal to a preset range difference threshold.

[0054] The historical temperature variance characterizes the temperature variance of the electrolyte temperature within the battery stack over a historical period, and the historical temperature range characterizes the temperature range of the electrolyte temperature within the battery stack over a historical period. The historical period can be the previous calculation period. The first warning information can include both voice and text warnings, such as "High temperature detected, please take precautions!" output through a user terminal. The second warning information can include both voice and text warnings, such as "Low temperature detected, please take precautions!" output through a user terminal. The third warning information can include both voice and text warnings, such as "Large temperature variance, please take precautions!" output through a user terminal. The fourth warning information can include both voice and text warnings, such as "Large temperature range, please take precautions!" output through a user terminal.

[0055] For example, it is possible to In this case, the first warning message is output, where This is the maximum value of that temperature. For this first preset temperature threshold, it is possible to In this case, the second warning message is output, where This is the minimum temperature. For this second preset temperature threshold, it is possible to In this case, the first warning message is output, where Let this temperature variance be... This is the historical temperature variance. This is the preset variance difference threshold; in In this case, the second warning message is output, where R represents the temperature range. This is due to the extreme temperature range in history. This is the preset range difference threshold. This allows for the output of early warning messages when abnormal electrolyte temperatures are detected inside the battery stack, enabling users to promptly investigate and address the anomaly.

[0056] In some embodiments, the area above the surface of the battery stack includes a region 0m-3m above the surface of the battery stack; the temperature acquisition unit is arranged vertically relative to the battery stack.

[0057] The range of the acquisition distance is set to take into account the impact of ambient temperature on acquisition accuracy when the distance is too large, which can improve the accuracy of temperature acquisition. When the temperature acquisition unit 1012 slides along the moving track, the probe of the temperature acquisition unit 1012 remains perpendicular to the battery stack to ensure acquisition accuracy.

[0058] Figure 4 This is a flowchart illustrating a temperature monitoring method according to an exemplary embodiment of the present disclosure, with reference to... Figure 4 The method is applied to a temperature monitoring system, which includes a temperature acquisition module 101 and a data analysis module 102, the temperature acquisition module 101 and the data analysis module 102 being connected; the temperature acquisition module 101 includes at least one moving component 1011, and at least one temperature acquisition unit 1012 is arranged on each moving component 1011, the temperature acquisition unit 1012 being capable of moving in an area above the surface of the battery stack based on the moving component 1011; the method includes: S401. When the moving component moves in the area above the surface of the battery stack, the initial temperature data of the surface of the battery stack is collected.

[0059] S402. Based on the initial temperature data, determine the temperature distribution data of the electrolyte inside the battery stack.

[0060] S403. Generate temperature analysis results corresponding to the temperature distribution data.

[0061] Optionally, the moving component includes a moving track arranged around the battery stack, with the moving track centered on the battery stack. The moving track includes a transverse moving track and a longitudinal moving track, with the track angle between adjacent transverse moving tracks being a first preset angle and the track angle between adjacent longitudinal moving tracks being a second preset angle. The process of sliding the temperature acquisition unit on the moving track at a target sliding speed to collect initial temperature data of the battery stack surface includes: determining the number of first transverse moving tracks and the number of second longitudinal moving tracks based on the size information of the battery stack, and determining the number of temperature acquisition units arranged on each moving track and the target sliding speed; and sliding the temperature acquisition unit on the moving track at the target sliding speed to collect the initial temperature data.

[0062] Optionally, determining the temperature distribution data of the electrolyte inside the battery stack based on the initial temperature data includes: generating grayscale image information corresponding to the initial temperature data; inputting the grayscale image information into a preset temperature model; and determining the temperature distribution data of the electrolyte inside the battery stack based on a preset data processing method.

[0063] Optionally, the temperature analysis results include the maximum temperature, minimum temperature, temperature variance, and temperature range of the electrolyte inside the battery stack; the temperature analysis results corresponding to the generated temperature distribution data include: determining the maximum temperature, minimum temperature, temperature variance, and temperature range based on the temperature distribution data.

[0064] Optionally, the system further includes: an early warning module; the early warning module is connected to the data analysis module; the method further includes: outputting a first early warning message when the maximum temperature is greater than or equal to a first preset temperature threshold; outputting a second early warning message when the minimum temperature is less than or equal to a second preset temperature threshold; outputting a third early warning message when the difference between the variance of the temperature variance and the historical temperature variance is greater than or equal to a preset variance difference threshold; the historical temperature variance is used to characterize the temperature variance of the electrolyte temperature inside the battery stack over a historical period; outputting a fourth early warning message when the difference between the range of the temperature range and the historical temperature range is greater than or equal to a preset range difference threshold; the historical temperature range is used to characterize the temperature range of the electrolyte temperature inside the battery stack over a historical period.

[0065] Optionally, the size information includes the width and height of the battery stack; the temperature acquisition unit includes a lateral temperature acquisition unit arranged on a lateral moving track and a longitudinal temperature acquisition unit arranged on a longitudinal moving track; the target sliding speed includes a first target sliding speed of the lateral temperature acquisition unit and a second target sliding speed of the longitudinal temperature acquisition unit; the number of temperature acquisition units includes a first number of lateral temperature acquisition units and a second number of longitudinal temperature acquisition units; determining the first number of lateral moving tracks and the second number of longitudinal moving tracks based on the size information of the battery stack, and determining the number of temperature acquisition units and the target sliding speed on each moving track, includes: determining the first number of tracks, the first number of units, and the first target sliding speed based on the height of the battery stack; and determining the second number of tracks, the second number of units, and the second target sliding speed based on the width of the battery stack.

[0066] Optionally, determining the number of second tracks, the number of second arrangements, and the second target sliding speed based on the width of the battery stack includes: when the width of the battery stack is greater than or equal to a first preset width and less than a second preset width, determining the number of second tracks as the first preset track number, the number of second arrangements as the first preset arrangement number, and the second target sliding speed as the first preset sliding speed; or, when the width of the battery stack is greater than or equal to a second preset width and less than a third preset width, determining the number of second tracks as the second preset track number, the number of second arrangements as the second preset arrangement number, and the second target sliding speed as the second preset sliding speed; or, when the width of the battery stack is greater than or equal to a third preset width, determining the number of second tracks as the third preset track number, the number of second arrangements as the third preset arrangement number, and the second target sliding speed as the third preset sliding speed; wherein the first preset sliding speed is less than the second preset sliding speed, and the second preset sliding speed is less than the third preset sliding speed.

[0067] Optionally, the area above the surface of the battery stack includes a region 0m-3m above the surface of the battery stack; the temperature acquisition unit is arranged vertically relative to the battery stack.

[0068] Using the above method, a temperature acquisition unit that can move based on a movable component can be deployed above the surface of the battery stack. By moving the temperature acquisition unit on the movable component, initial temperature data of the battery stack surface is collected. The temperature distribution data of the electrolyte inside the battery stack is determined through a preset temperature model and preset data processing method, and the corresponding maximum temperature, minimum temperature, temperature variance, and temperature range are generated. In this way, the temperature distribution of the electrolyte inside the battery stack can be determined by collecting temperature data from the battery stack surface, improving the accuracy of temperature monitoring. Simultaneously, by collecting the temperature of the battery stack surface using a temperature acquisition unit that can slide along a moving track, the real-time performance of temperature monitoring can be improved, and monitoring costs can be reduced. Furthermore, if the maximum temperature, minimum temperature, temperature variance, and temperature range are not found to meet preset conditions, an early warning message can be output, allowing users to promptly investigate and handle anomalies, reducing safety hazards such as excessively high or low battery temperatures.

[0069] Regarding the methods in the above embodiments, the specific manner in which the methods are executed has been described in detail in the embodiments related to the system, and will not be elaborated upon here.

[0070] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0071] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0072] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A temperature monitoring system, characterized in that, The system includes a temperature acquisition module and a data analysis module, which are connected to each other. The temperature acquisition module includes at least one moving component, and at least one temperature acquisition unit is arranged on each moving component. The temperature acquisition unit is capable of moving in an area above the surface of the battery stack based on the moving component. The temperature acquisition unit is used to acquire initial temperature data of the surface of the battery stack based on the movement of the moving component in the area above the surface of the battery stack. The data analysis module is used to determine the temperature distribution data of the electrolyte inside the battery stack based on the initial temperature data, and generate temperature analysis results corresponding to the temperature distribution data.

2. The system according to claim 1, characterized in that, The moving component includes a moving track, which is arranged around the battery stack with the battery stack as the center. The moving track includes a horizontal moving track and a vertical moving track. The track angle between adjacent horizontal moving tracks is a first preset angle, and the track angle between adjacent vertical moving tracks is a second preset angle. The temperature acquisition module is used to determine the number of first tracks for the horizontal movement track and the number of second tracks for the vertical movement track based on the size information of the battery stack, as well as the number of temperature acquisition units arranged on each movement track and the target sliding speed, and to slide the temperature acquisition units on the movement track at the target sliding speed to acquire the initial temperature data.

3. The system according to claim 1, characterized in that, The temperature acquisition module is used to generate grayscale image information corresponding to the initial temperature data based on the initial temperature data. The data analysis module is used to input the grayscale image information into a preset temperature model and determine the temperature distribution data of the electrolyte inside the battery stack based on a preset data processing method.

4. The system according to claim 3, characterized in that, The temperature analysis results include the maximum temperature, minimum temperature, temperature variance, and temperature range of the electrolyte temperature inside the battery stack. The data analysis module is used to determine the maximum temperature, the minimum temperature, the temperature variance, and the temperature range based on the temperature distribution data.

5. The system according to claim 4, characterized in that, The system further includes: an early warning module; the early warning module is connected to the data analysis module; The early warning module is used to output a first early warning message when the maximum temperature value is greater than or equal to a first preset temperature threshold. The warning module is also used to output a second warning message when the minimum temperature value is less than or equal to a second preset temperature threshold. The early warning module is also used to output a third early warning message when the difference between the variance of the temperature variance and the historical temperature variance is greater than or equal to a preset variance difference threshold; the historical temperature variance is used to characterize the temperature variance of the electrolyte temperature inside the battery stack over a historical period. The early warning module is also used to output a fourth early warning message when the difference between the temperature range and the historical temperature range is greater than or equal to a preset range difference threshold; the historical temperature range is used to characterize the temperature range of the electrolyte temperature inside the battery stack over a historical period.

6. The system according to claim 2, characterized in that, The size information includes the width and height of the battery stack; the temperature acquisition unit includes a lateral temperature acquisition unit arranged on a lateral moving track and a longitudinal temperature acquisition unit arranged on a longitudinal moving track; the target sliding speed includes a first target sliding speed of the lateral temperature acquisition unit and a second target sliding speed of the longitudinal temperature acquisition unit; the number of temperature acquisition units includes a first number of lateral temperature acquisition units and a second number of longitudinal temperature acquisition units. The temperature acquisition module is used to determine the number of the first tracks, the number of the first arrangement, and the sliding speed of the first target based on the height of the battery stack. The temperature acquisition module is also used to determine the number of the second tracks, the number of the second arrangement, and the second target sliding speed based on the width of the battery stack.

7. The system according to claim 6, characterized in that, The temperature acquisition module is used to determine the number of the second track as the number of the first preset track, the number of the second arrangement as the number of the first preset arrangement, and the second target sliding speed as the first preset sliding speed when the width of the battery stack is greater than or equal to the first preset width and less than the second preset width. or, When the width of the battery stack is greater than or equal to the second preset width and less than the third preset width, the second number of tracks is determined to be the second preset number of tracks, the second arrangement number is determined to be the second preset arrangement number, and the second target sliding speed is determined to be the second preset sliding speed. or, When the width of the battery stack is greater than or equal to the third preset width, the number of the second track is determined to be the third preset track number, the number of the second arrangement is determined to be the third preset arrangement number, and the second target sliding speed is determined to be the third preset sliding speed. The first preset sliding speed is less than the second preset sliding speed, and the second preset sliding speed is less than the third preset sliding speed.

8. The system according to any one of claims 1-7, characterized in that, The area above the surface of the battery stack includes the region 0m-3m above the surface of the battery stack; the temperature acquisition unit is arranged vertically relative to the battery stack.

9. A temperature monitoring method, characterized in that, An application is made in a temperature monitoring system, the system comprising: a temperature acquisition module and a data analysis module, the temperature acquisition module and the data analysis module being connected; the temperature acquisition module includes at least one moving component, each moving component having at least one temperature acquisition unit disposed thereon, the temperature acquisition unit being capable of moving based on the moving component in an area above the surface of the battery stack; the method includes: While the moving component moves in the area above the surface of the battery stack, initial temperature data of the surface of the battery stack is collected; Based on the initial temperature data, determine the temperature distribution data of the electrolyte inside the battery stack; Generate temperature analysis results corresponding to the temperature distribution data.

10. The method according to claim 9, characterized in that, The moving component includes a moving track, which is arranged around the battery stack with the battery stack as the center. The moving track includes a horizontal moving track and a vertical moving track. The track angle between adjacent horizontal moving tracks is a first preset angle, and the track angle between adjacent vertical moving tracks is a second preset angle. The acquisition of initial temperature data of the battery stack surface, based on the movement of the moving component in the region above the battery stack surface, includes: Based on the size information of the battery stack, determine the number of first tracks for the transverse moving track and the number of second tracks for the longitudinal moving track, as well as the number of temperature acquisition units and the target sliding speed on each moving track. The temperature acquisition unit is slid along the moving track at the target sliding speed to acquire the initial temperature data.

11. The method according to claim 9, characterized in that, The step of determining the temperature distribution data of the electrolyte inside the battery stack based on the initial temperature data includes: Based on the initial temperature data, generate grayscale image information corresponding to the initial temperature data; The grayscale image information is input into a preset temperature model, and the temperature distribution data of the electrolyte inside the battery stack is determined based on a preset data processing method.

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