Leak hole position determination method and device, positioning system and computer equipment

Abstract

The invention relates to a leak hole position determination method and device, a positioning system and computer equipment. The method comprises the steps of controlling an air suction pipe to move along the surface of a target battery so that the air suction pipe sucks leaked air of the target battery, determining a first time point corresponding to a moving starting point of the air suction pipe, and determining a second time point corresponding to a response peak value in a response signal generated by a sensor based on the leaked air of the target battery, and determining the position of the leak hole in the target battery according to the first duration from the second time point to the first time point and the moving speed of the air suction pipe, thereby realizing positioning of the position of the leak hole in the target battery.

Description

Technical Field

[0001] The present application relates to the technical field of leak hole location positioning, and in particular to a leak hole location determination method, device, positioning system, and computer equipment. Background Art

[0002] The hydrogen-nitrogen leak detection method is a gas tightness detection method based on a gas sensor array. A mixture of hydrogen and nitrogen at a certain pressure concentration is filled into the test piece, and then the concentration of the leak is measured using a gas sensor array. In this way, the gas leakage at any position can be calculated based on the concentration and flow of the leak. The hydrogen-nitrogen leak detection method is simple to operate, has high detection accuracy, fast response speed, and low cost, so it has obvious advantages in battery tightness detection.

[0003] During the detection process, the suction tube can be moved along the battery in a trajectory to absorb the leaked gas. The leaked gas from the battery is transmitted to the sensor through the suction tube at a certain suction speed, so as to perform gas concentration detection and determine whether leakage occurs at the sealing interface based on the detected gas concentration.

[0004] However, it is currently difficult to determine the location of the leak hole on the battery. Summary of the invention

[0005] Based on this, it is necessary to provide a method, device, positioning system, and computer equipment for determining the position of the leak hole on the battery in order to solve the above technical problems.

[0006] In a first aspect, the present application provides a method for determining a leak hole position. The method comprises:

[0007] Controlling the air intake pipe to move along the surface of the target battery so that the air intake pipe inhales the leaked gas of the target battery;

[0008] Determine a first time point corresponding to a moving starting point of the air intake pipe, and determine a second time point corresponding to a response peak in a response signal generated by the sensor based on leakage of the target battery;

[0009] The position of the leak hole on the target battery is determined according to a first time period between the second time point and the first time point and a moving speed of the air intake pipe.

[0010] The method for determining the location of a leakage hole provided in an embodiment of the present application controls an intake pipe to move along the surface of a target battery so that the intake pipe inhales leakage from the target battery, determines a first time point corresponding to the starting point of the movement of the intake pipe, and determines a second time point corresponding to a response peak in a response signal generated by a sensor based on the leakage of the target battery, and then determines the location of the leakage hole on the target battery based on a first time length between the second time point and the first time point and the moving speed of the intake pipe, thereby locating the location of the leakage hole on the target battery.

[0011] In one embodiment, determining the location of the leak hole on the target battery according to a first time period between the second time point and the first time point and a moving speed of the air intake pipe includes:

[0012] Determine the latency of the response peak;

[0013] The position of the leak hole on the target battery is determined according to the first duration, the moving speed of the suction pipe and the delay duration.

[0014] The method provided in the embodiment of the present application determines the delay duration of the response peak, determines the position of the leak hole on the target battery according to the first duration, the moving speed of the intake pipe and the delay duration. Since the delay duration of the response peak is taken into consideration, the position of the leak hole can be determined more accurately, thereby improving the accuracy of leak hole positioning.

[0015] In one embodiment, determining the delay duration of the response peak includes:

[0016] Determine a second time duration from when the leaked gas enters the air intake pipe to when the leaked gas leaves the sensor;

[0017] The delay duration is determined according to the second duration.

[0018] The method provided in the embodiment of the present application determines the second time duration from the leakage entering the air intake pipe to the leakage leaving the sensor, and determines the delay time duration based on the second time duration, thereby facilitating determination of the position of the leakage hole on the target battery based on the delay time duration, thereby improving the accuracy of locating the leakage hole.

[0019] In one embodiment, determining the delay duration according to the second duration includes:

[0020] Obtaining a third time duration required for the sensor to generate a response signal;

[0021] The delay duration is determined according to the second duration and the third duration.

[0022] The method provided in the embodiment of the present application obtains the third time required for the sensor to generate a response signal, determines the delay time according to the second time and the third time, thereby achieving a more comprehensive consideration of the delay time that affects the response peak, thereby further improving the accuracy of leak position positioning.

[0023] In one embodiment, determining a second time period from when the leaked air enters the air intake pipe to when the leaked air leaves the sensor comprises:

[0024] determining a first ratio between a volume of the inhalation pipe and an inhalation speed of the inhalation pipe, and determining a fourth time duration for the leakage air to be transmitted in the inhalation pipe according to the first ratio;

[0025] Determine a second ratio between the volume of the chamber and the air inhalation speed, and determine a fifth time duration between the leakage gas entering the chamber and the leakage gas leaving the sensor according to the second ratio;

[0026] The second duration is determined based on the fourth duration and the fifth duration.

[0027] The method provided in the embodiment of the present application determines a first ratio between the volume of the intake pipe and the intake speed of the intake pipe, determines a fourth time duration of the leakage transmission in the intake pipe according to the first ratio, determines a second ratio between the volume of the chamber and the intake speed, determines a fifth time duration between the leakage entering the chamber and the leakage leaving the sensor according to the second ratio, and then determines the second time duration based on the fourth time duration and the fifth time duration, thereby achieving more accurate determination of the second time duration, making the delay time duration determined based on the second time duration and the third time duration more accurate, thereby further improving the accuracy of leak hole locating.

[0028] In one embodiment, the fifth duration is not less than the first preset duration and not greater than the second ratio.

[0029] In the embodiment of the present application, by limiting the value range of the fifth time length, the value of the fifth time length can be determined more accurately, laying the foundation for determining the delay duration of the response peak, and thus being able to more accurately locate the position of the leak.

[0030] In one embodiment, determining the location of the leak hole on the target battery according to the first duration, the moving speed of the air intake pipe, and the delay duration includes:

[0031] Determine the duration difference between the first duration and the delayed duration;

[0032] Determine the product of the time difference and the speed of movement of the suction tube;

[0033] The location of the leak hole on the target battery is determined based on the product.

[0034] The method provided in the embodiment of the present application determines the time difference between the first time duration and the delay time duration, determines the product of the time difference and the moving speed of the intake pipe, and then determines the position of the leakage hole on the target battery according to the product, thereby more accurately locating the position of the leakage hole on the target battery.

[0035] In one of the embodiments, the moving speed of the intake pipe is determined based on other test condition information except the moving speed; the inner diameter of the intake pipe is determined based on other test condition information except the inner diameter; the suction speed of the intake pipe is determined based on other test condition information except the suction speed.

[0036] In an embodiment of the present application, the moving speed of the intake pipe is determined based on other test condition information except the moving speed; the inner diameter of the intake pipe is determined based on other test condition information except the inner diameter; the suction speed of the intake pipe is determined based on other test condition information except the suction speed, so that during the movement of the intake pipe, even if a tiny amount of gas leakage is inhaled, an obvious response signal can be captured, thereby reducing the probability of not being able to capture a relatively accurate response peak due to the response signal being too weak.

[0037] In a second aspect, the present application also provides a leak hole location determination device. The device comprises:

[0038] A control module, used for controlling the air intake pipe to move along the surface of the target battery so that the air intake pipe inhales the leaked gas of the target battery;

[0039] A first determination module is used to determine a first time point corresponding to a moving starting point of the air intake pipe, and to determine a second time point corresponding to a response peak in a response signal; the response signal is generated by the sensor based on leakage of a target battery;

[0040] The second determination module is used to determine the position of the leak hole on the target battery according to a first time period between the second time point and the first time point and a moving speed of the air intake pipe.

[0041] In a third aspect, the present application further provides a leak position positioning system, the system comprising a leak position detection device and a processor, the leak position detection device comprising an air intake pipe, a chamber, and a sensor disposed in the chamber, one end of the air intake pipe being connected to the chamber;

[0042] A processor is used to execute the steps of any of the above methods.

[0043] In one of the embodiments, the leak hole position detection device further includes a moving component, and the suction pipe is connected to the moving component;

[0044] A processor for sending control instructions to the mobile component;

[0045] The moving component is used for controlling the air intake pipe to move along the surface of the target battery based on the control instruction.

[0046] In one embodiment, the sensor is configured to generate a response signal based on a concentration of leaked gas from a target battery discharged into the chamber through the suction pipe.

[0047] In a third aspect, the present application further provides a computer device, which includes a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the method provided in the above embodiment when executing the computer program.

[0048] In a fourth aspect, the present application further provides a computer-readable storage medium, wherein a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method provided in the above embodiment are implemented.

[0049] In a fifth aspect, the present application further provides a computer program product, which includes a computer program, and when the computer program is executed by a processor, the steps of the method provided in the above embodiment are implemented.

[0050] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0052] Figure 1 is an application environment diagram of the leak hole location determination method provided in an embodiment of the present application;

[0053] Figure 2 It is a flow chart of a method for determining a leak hole position provided in an embodiment of the present application;

[0054] Figure 3 This is a schematic diagram of a leak hole location determination process provided by an embodiment of the present application;

[0055] Figure 4 It is a flow chart of another method for determining the position of a leak hole provided in an embodiment of the present application;

[0056] Figure 5 is a schematic diagram of a response signal of a sensor provided in an embodiment of the present application;

[0057] Figure 6 It is a flowchart of a method for determining a delay duration provided in an embodiment of the present application;

[0058] Figure 7 It is a flowchart of another method for determining a delay duration provided in an embodiment of the present application;

[0059] Figure 8 is a flow chart of a second duration determination method provided in an embodiment of the present application;

[0060] Fig. 9It is a flow chart of another method for determining the position of a leak hole provided in an embodiment of the present application;

[0061] Fig.10 is a schematic diagram of a response signal provided in an embodiment of the present application;

[0062] Fig.11 is a flow chart of another method for determining a leak hole position provided in an embodiment of the present application;

[0063] Fig.12 It is one of the structural schematic diagrams of the leak hole position determination device provided in the embodiment of the present application;

[0064] Fig.13 This is the second structural schematic diagram of the leak hole position determination device provided in the embodiment of the present application;

[0065] Fig.14 This is the third structural schematic diagram of the leak hole position determination device provided in the embodiment of the present application;

[0066] Fig.15 It is a structural schematic diagram of a leak hole position determination device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0067] The following embodiments of the technical solution of the present application will be described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0068] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0069] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0070] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0071] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0072] The hydrogen-nitrogen leak detection method is a gas tightness detection method based on a gas sensor array. A mixture of hydrogen and nitrogen at a certain pressure concentration is filled into the test piece, and then the concentration of the leak is measured using a gas sensor array. In this way, the gas leakage at any position can be calculated based on the concentration and flow of the leak. The hydrogen-nitrogen leak detection method is simple to operate, has high detection accuracy, fast response speed, and low cost, so it has obvious advantages in battery tightness detection.

[0073] During the detection process, the suction tube can be moved along the battery in a trajectory to absorb the leaked gas. The leaked gas from the battery is transmitted to the sensor through the suction tube at a certain suction speed, so as to perform gas concentration detection and determine whether leakage occurs at the sealing interface based on the detected gas concentration.

[0074] However, it is currently difficult to determine the exact location of the leak hole on the battery.

[0075] In order to solve the above technical problems, the present application provides a method for determining the position of a leak hole, such as Figure 1 As shown, Figure 1: This is an application environment diagram of the method for determining the location of a leak provided in an embodiment of the present application. It includes a target battery 11, an air intake pipe 12, a chamber 13, a sensor 14 disposed in the chamber 13, and a processor 15. The processor 15 can control the air intake pipe to move along the surface of the target battery, so that the air intake pipe 12 inhales the leak of the target battery 11, and the leak inhaled by the air intake pipe 12 is transmitted to the chamber 13. After the sensor 14 in the chamber 13 contacts the leak in the chamber, a response signal is generated based on the concentration of the gas in the chamber. The sensor 14 sends the response signal to the processor 15. The processor 15 determines the second time point corresponding to the response peak in the response signal, and calculates the first time length between the second time point and the first time point corresponding to the moving starting point of the air intake pipe. According to the first time length and the moving speed of the air intake pipe, the location of the leak on the target battery is determined, and the location of the leak on the target battery is located.

[0076] Reference Figure 2 , Figure 2 is a flow chart of a method for determining a leak hole position provided in an embodiment of the present application, and the method is applied to Figure 1 The processor shown includes:

[0077] S201, controlling the air intake pipe to move along the surface of the target battery so that the air intake pipe inhales the leaked gas of the target battery.

[0078] Reference Figure 3 , Figure 3 : is a schematic diagram of a leak hole location determination process provided by an embodiment of the present application. The air intake pipe 31 can be installed on a manipulator, and the processor can send a control instruction to the manipulator, and the manipulator drives the air intake pipe 31 to move from the moving starting point 32 along the surface of the target battery based on the control instruction. Alternatively, the air intake pipe 31 is installed on a moving guide rail, and the air intake pipe 31 is controlled to move from the moving starting point 32 along the surface of the target battery 33 by controlling the movement of the moving guide rail.

[0079] When the air intake pipe 31 moves along the surface of the target battery 33 and moves to the vicinity of the leak hole 34, the air intake pipe 31 inhales the leaked gas from the leak hole 34 of the target battery 33, and the inhaled leaked gas enters the target battery 33 through the air intake pipe 31. Figure 1 In the chamber 13 shown, after the sensor 14 in the chamber 13 contacts the gas leak, the sensor 14 can generate a response signal based on the concentration of the gas leak, and send the response signal to the processor 15. It should be noted that the generation of the response signal may also be affected by environmental factors such as the temperature and humidity of the gas leak, that is, the sensor generates the response signal based on the concentration, temperature, humidity, etc. of the gas leak.

[0080] S202, determining a first time point corresponding to a moving starting point of the air intake pipe, and determining a second time point corresponding to a response peak in a response signal; the response signal is generated by the sensor based on leakage of the target battery.

[0081] The sensor may be a gas sensor, including but not limited to a hydrogen sensor and an ethanol sensor.

[0082] The processor may determine the first time point corresponding to the moving starting point 32 of the air intake pipe. Exemplarily, the processor may use the sending time point corresponding to the control instruction as the first time point, or use the time point when the response instruction is received as the first time point, where the response instruction is the instruction returned by the manipulator to the processor based on the control instruction. Alternatively, the processor may record the sending time point corresponding to the control instruction as 0, that is, determine the first time point corresponding to the moving starting point of the air intake pipe as 0.

[0083] Since the response signal can reflect the corresponding relationship between the response value and the time point, when the response signal is found in the sensor, a potential leak is found at this time. When the response signal has a response peak, the time point corresponding to the response peak can be used as the second time point. Therefore, the second time point corresponding to the response peak can be determined based on the response signal. Among them, the response value of the sensor in the embodiment of the present application refers to the ratio between the electrical signal value generated by the sensor after contact with the air leak and the electrical signal value of the sensor in the air. The electrical signal value can be a voltage value, a current value or a resistance value.

[0084] S203, determining a position of the leak hole on the target battery according to a first time period between the second time point and the first time point and a moving speed of the air intake pipe.

[0085] In the embodiment of the present application, the moving speed of the intake pipe is a vector, and the moving speed of the intake pipe includes a direction and a speed magnitude, that is, the intake pipe has a moving path during its movement.

[0086] In one possible implementation, Figure 3 As shown, when the air intake pipe 31 moves to the position of the leak hole 34 of the target battery 33, a response peak appears in the response signal. That is, the second time point corresponding to the response peak is the time point when the air intake pipe moves to the leak hole 34, and the first duration can represent the time required for the air intake pipe to move from the moving starting point 32 to the position of the leak hole 34. The first duration is multiplied by the speed of the air intake pipe 31 to obtain the moving distance of the air intake pipe 31 when it moves from the moving starting point 32 to the position of the leak hole 34. According to the moving distance, the position of the leak hole on the target battery can be determined, that is, the position on the surface of the target battery that is the moving distance from the moving starting point is taken as the position of the leak hole.

[0087] In another possible implementation, when the air intake pipe 31 moves to the position of the leak hole 34 of the target battery, the response signal generated by the sensor does not show a response peak due to the response delay of the sensor itself, but the response peak appears after a certain delay, that is, after the air intake pipe 31 moves to the position of the leak hole 34 of the target battery, the response peak appears after the delay time. In this case, the time difference can be obtained by subtracting the delay time from the first time, and the time difference can be multiplied by the moving speed of the air intake pipe to obtain the moving distance of the air intake pipe when it moves from the moving starting point 32 to the position of the leak hole 34. According to the moving distance, the position of the leak hole 34 on the target battery 33 can be determined, that is, the position on the surface of the target battery 33 that is the moving distance from the moving starting point 32 is used as the position of the leak. Among them, the size of the response delay of the sensor itself is related to the performance of the sensor itself.

[0088] The method for determining the location of a leakage hole provided in an embodiment of the present application controls an intake pipe to move along the surface of a target battery so that the intake pipe inhales leakage from the target battery, determines a first time point corresponding to the starting point of the movement of the intake pipe, and determines a second time point corresponding to a response peak in a response signal generated by a sensor based on the leakage of the target battery, and then determines the location of the leakage hole on the target battery based on a first time length between the second time point and the first time point and the moving speed of the intake pipe, thereby locating the location of the leakage hole on the target battery.

[0089] In one embodiment, if Figure 4 As shown, Figure 4 : is a flow chart of another method for determining the location of a leak hole provided in an embodiment of the present application. This embodiment relates to a possible implementation method of how to determine the location of a leak hole on a target battery based on a first time length between a second time point and a first time point and a moving speed of an air intake pipe. Based on the above embodiment, the above S203 may include the following steps:

[0090] S401, determining a delay time of a response peak.

[0091] like Figure 1 As shown, the delay time may include at least one of the propagation time of the leakage gas in the air intake pipe, the time between the leakage gas entering the chamber and the leakage gas leaving the sensor, and the delay time caused by the response delay of the sensor itself.

[0092] like Figure 3 and Figure 5 As shown, Figure 5 is a schematic diagram of a response signal of a sensor provided in an embodiment of the present application. If there is a delay time, the corresponding time point when the air intake pipe is moved to the position of the leakage hole 34 of the target battery is recorded as t1, such as Figure 5It can be seen from the signal diagram 51 on the left side of FIG5 that the concentration of the leaked air inhaled in the air intake pipe reaches the maximum value at t1, but it can be seen from the signal diagram 52 on the right side of FIG5 that the response peak value of the response signal generated by the sensor appears at t2. That is, the delay time of the response peak value is equal to t2-t1.

[0093] For example, if the propagation time of the leak in the air intake pipe is recorded as t pipe , the time from when the leak enters the chamber to when it leaves the sensor is recorded as t box , the delay time caused by the response delay of the sensor itself is recorded as t delay .

[0094] In a possible implementation, the delay time in response to the peak value includes t pipe In the case of , then t2-t1=t pipe .

[0095] In another possible implementation, the delay time of the response peak includes t pipe and t box In the case of t2-t1=t pipe +t box .

[0096] In another possible implementation, the delay time of the response peak includes t pipe ,t box and t delay In the case of t2-t1=t pipe +t box +t delay .

[0097] S402, determining a position of a leak hole on a target battery according to the first duration, a moving speed of the air intake pipe, and a delay duration.

[0098] According to the first duration, the moving speed of the suction pipe and the delay duration, the location of the leak hole on the target battery can be determined in the following manner:

[0099] In one possible implementation, a first product of a first duration and a moving speed of the intake pipe is determined, a second product of a delay duration and a moving speed of the intake pipe is determined, and a difference is obtained by subtracting the second product from the first product. The difference is the distance difference, and the position of the leak hole on the target battery can be determined based on the distance difference. For example, the position on the moving path of the intake pipe that is the distance difference from the starting point of the movement is taken as the position of the leak hole.

[0100] In another possible implementation, the first product of the first duration and the moving speed of the air intake pipe is determined, that is, the distance between the end position and the moving starting point is equal to the first product, and the end position can be determined according to the first product. The second product of the delay duration and the moving speed of the air intake pipe is determined, and the position on the reverse moving path of the air intake pipe that is the second product away from the end position is used as the position of the leak. The reverse moving path refers to a moving path in the opposite direction to the actual moving path of the air intake pipe.

[0101] The method provided in the embodiment of the present application determines the delay duration of the response peak, determines the position of the leak hole on the target battery according to the first duration, the moving speed of the intake pipe and the delay duration. Since the delay duration of the response peak is taken into consideration, the position of the leak hole can be determined more accurately, thereby improving the accuracy of leak hole positioning.

[0102] In one embodiment, if Figure 6 As shown, Figure 6 4 is a flow chart of a method for determining a delay duration provided in an embodiment of the present application. This embodiment relates to a possible implementation method of how to determine the delay duration of a response peak. Based on the above embodiment, the above S401 may include the following steps:

[0103] S601, determining a second time length from when the leaked air enters the air intake pipe to when the leaked air leaves the sensor.

[0104] In the embodiment of the present application, the second time length from the leakage entering the air intake pipe to the leakage leaving the sensor can be equal to t in the above embodiment. pipe With t box Or, the second duration is equal to the sum of the first product and the second product, and the first product is equal to t pipe The second product is equal to t box The product of the second preset value.

[0105] t pipe = The ratio of the volume of the suction pipe to the suction speed. If the volume of the suction pipe is recorded as V p , suction speed v p ,but r is half of the inner diameter of the suction pipe, and l is the length of the suction pipe.

[0106] t box It can be determined based on the ratio between the volume of the chamber and the air suction speed. The ratio between the volume of the chamber and the air suction speed is the maximum delay time required for a certain concentration of leaked gas to enter the chamber and leave the sensor in the chamber. That is, the maximum delay time V b represents the volume of the chamber. boxThe size of t is also affected by the distance between the air outlet of the air intake pipe and the sensor. The smaller the distance, the smaller the distance. box The smaller the value, the larger the distance, t box The larger the value of t box It may be equal to 0, or less than or equal to t box-max A numerical value of .

[0107] S602: Determine a delay duration according to the second duration.

[0108] In a possible implementation, the second duration can be used as the delay duration, that is, t pipe +t box The sum is taken as the delay time.

[0109] The method provided in the embodiment of the present application determines the second time duration from the leakage entering the air intake pipe to the leakage leaving the sensor, and determines the delay time duration based on the second time duration, thereby facilitating determination of the position of the leakage hole on the target battery based on the delay time duration, thereby improving the accuracy of locating the leakage hole.

[0110] In one embodiment, if Figure 7 As shown, Figure 7 1 is a flow chart of another method for determining a delay duration provided by an embodiment of the present application. This embodiment relates to a possible implementation of how to determine a delay duration according to a second duration. The above S602 may include the following steps:

[0111] S701, obtaining a third time length required for the sensor to generate a response signal.

[0112] The third time required for the sensor to generate a response signal refers to the delay time for the sensor itself to respond to the leak, that is, the delay time t caused by the response delay of the sensor itself delay Different sensors have different delay times t delay It may also be different, the delay time t delay A performance parameter of the sensor, which is known and can be delayed for a period of time t delay Stored in the processor, the processor can directly obtain the stored delay time t delay .

[0113] S702: Determine a delay duration according to the second duration and the third duration.

[0114] In the embodiment of the present application, the sum of the second duration and the third duration may be determined and used as the delay duration, or the sum multiplied by a preset value to obtain a result as the delay duration.

[0115] The method provided in the embodiment of the present application obtains the third time required for the sensor to generate a response signal, determines the delay time according to the second time and the third time, thereby achieving a more comprehensive consideration of the delay time that affects the response peak, thereby further improving the accuracy of leak position positioning.

[0116] In one embodiment, if Figure 8 As shown, Figure 8 : is a flow chart of a method for determining a second duration provided in an embodiment of the present application. This embodiment relates to a possible implementation method of how to determine the second duration from when the leak enters the air intake pipe to when the leak leaves the sensor. Based on the above embodiment, the above S601 may include the following steps:

[0117] S801, determining a first ratio between a volume of an intake duct and an intake speed of the intake duct, and determining a fourth time duration for leakage air to be transmitted in the intake duct according to the first ratio.

[0118] The first ratio is equal to t in the above embodiment. pipe , The first ratio may be used as the fourth time duration of the leaked air being transmitted in the air intake pipe. Alternatively, the first ratio may be multiplied by a preset value to obtain a result as the fourth time duration. The first ratio may be adjusted by multiplying the first ratio by a preset value, and the adjusted first ratio may be used as the fourth time duration.

[0119] S802, determining a second ratio between the volume of the chamber and the air inhalation speed, and determining a fifth time duration between the leakage gas entering the chamber and the leakage gas leaving the sensor according to the second ratio.

[0120] The second ratio is equal to t in the above embodiment. box-max ,Right now The fifth time length between the leaked gas entering the chamber and the leaked gas leaving the sensor refers to the time length between the leaked gas entering the chamber from the air outlet of the air intake pipe and the leaked gas leaving the sensor. The fifth time length may be a value not less than 0 and not greater than the second ratio.

[0121] S803: Determine a second duration according to the fourth duration and the fifth duration.

[0122] The sum of the fourth duration and the fifth duration may be determined and used as the second duration. Alternatively, the sum multiplied by a preset value may be used as the second duration.

[0123] The method provided in the embodiment of the present application determines a first ratio between the volume of the intake pipe and the intake speed of the intake pipe, determines a fourth time duration of the leakage transmission in the intake pipe according to the first ratio, determines a second ratio between the volume of the chamber and the intake speed, determines a fifth time duration between the leakage entering the chamber and the leakage leaving the sensor according to the second ratio, and then determines the second time duration based on the fourth time duration and the fifth time duration, thereby achieving more accurate determination of the second time duration, making the delay time duration determined based on the second time duration and the third time duration more accurate, thereby further improving the accuracy of leak hole locating.

[0124] In one embodiment, the fifth duration is not less than the first preset duration and not greater than the second ratio.

[0125] The first preset duration may be equal to 0, or the first preset duration may be a positive number very close to 0.

[0126] In the embodiment of the present application, by limiting the value range of the fifth time length, the value of the fifth time length can be determined more accurately, laying the foundation for determining the delay duration of the response peak, and thus being able to more accurately locate the position of the leak.

[0127] In one embodiment, if Fig. 9 As shown, Fig. 9 It is a flow chart of another method for determining the location of a leak hole provided by an embodiment of the present application. This embodiment relates to a possible implementation method of how to determine the location of a leak hole on a target battery based on a first duration, a moving speed of an intake pipe, and a delay duration. Determine the location of a leak hole on a target battery based on a first duration, a moving speed of an intake pipe, and a delay duration. Based on the above embodiment, the above S402 may include the following steps:

[0128] S901: Determine a duration difference between a first duration and a delay duration.

[0129] Since t2-t1 = delay time, the delay time is equal to t pipe +t box +t delay For example, the formula is as follows:

[0130] t2-t1=t pipe +t box +t delay , the duration difference based on this formula is as follows:

[0131] t1=t2-(t pipe +t box +t delay ).

[0132] By determining the time difference, the moving distance of the suction pipe can be compensated to obtain the position of the suction pipe when it moves from the moving starting point to the leak hole.

[0133] S902, determining the product of the time difference and the moving speed of the air intake pipe.

[0134] In the embodiment of the present application, the product of the time difference and the moving speed of the suction pipe can be determined, and the product is used to represent the distance when the suction pipe moves from the moving starting point to the leakage hole.

[0135] S903, determining the location of the leak hole on the target battery according to the product.

[0136] This product represents the distance between the moving starting point and the leak hole. If this product is recorded as distance A, the position on the moving path of the intake pipe that is the distance A from the moving starting point can be regarded as the position of the leak hole.

[0137] Alternatively, the first product of the first duration and the moving speed of the intake pipe is determined, and the first product is used to characterize the moving distance of the intake pipe from the moving starting point to the time when the response peak occurs. The moving distance is subtracted from the distance A to obtain a difference, and the difference is recorded as the distance B. Then, the position on the reverse moving path of the intake pipe that is the distance B from the end position can be used as the position of the leak. The reverse moving path refers to a moving path in the opposite direction to the actual moving path of the intake pipe.

[0138] The method provided in the embodiment of the present application determines the time difference between the first time duration and the delay time duration, determines the product of the time difference and the moving speed of the intake pipe, and then determines the position of the leakage hole on the target battery according to the product, thereby more accurately locating the position of the leakage hole on the target battery.

[0139] In one of the embodiments, the moving speed of the intake pipe is determined based on other test condition information except the moving speed; the inner diameter of the intake pipe is determined based on other test condition information except the inner diameter; the suction speed of the intake pipe is determined based on other test condition information except the suction speed.

[0140] The test operating condition information of the target battery may include, but is not limited to, the pressure of the gas injected into the battery pack, the moving speed of the suction pipe, the inner diameter of the suction pipe, the suction speed of the suction pipe, the temperature, humidity and other environmental conditions. In the case of different environmental conditions such as the pressure of the gas injected into the battery pack, the temperature and humidity in the test operating condition information, different moving speeds of the suction pipe, the inner diameter of the suction pipe and the suction pipe can be determined, so that the determined moving speed of the suction pipe, the inner diameter of the suction pipe and the suction speed of the suction pipe match the environmental conditions such as the pressure of the gas injected into the battery pack, the temperature and humidity, so as to obtain a response signal with better signal quality and capture a more accurate response peak, thereby improving the accuracy of leak location.

[0141] Among them, the moving speed of the intake pipe, the suction speed and the inner diameter of the intake pipe need to be reasonably matched. For example, when other test condition information except the moving speed of the intake pipe remains unchanged, the moving speed of the intake pipe increases, and the response value of the sensor decreases; when other test condition information except the suction speed of the intake pipe remains unchanged, the response value of the sensor is maximized when the suction speed increases to a certain value; when other test condition information except the inner diameter of the intake pipe remains unchanged, the response value of the sensor is maximized when the inner diameter of the intake pipe increases to a certain value.

[0142] In an embodiment of the present application, the moving speed of the intake pipe is determined based on other test condition information except the moving speed; the inner diameter of the intake pipe is determined based on other test condition information except the inner diameter; the suction speed of the intake pipe is determined based on other test condition information except the suction speed, so that during the movement of the intake pipe, even if a tiny amount of gas leakage is inhaled, an obvious response signal can be captured, thereby reducing the probability of not being able to capture a relatively accurate response peak due to the response signal being too weak.

[0143] It should be noted that the response peak value measured by the moving inhalation of the inhalation tube needs to be easy to identify, that is, the response peak value cannot be too low, otherwise it may be difficult to distinguish the response peak value due to interference from other environmental factors, such as Fig.10 As shown, Fig.10 It is a schematic diagram of a response signal provided in an embodiment of the present application. Therefore, by reasonably matching the test working condition information such as the moving speed of the air intake pipe, the air intake speed, and the inner diameter of the air intake pipe, the relative visibility of the response peak generated by the sensor can be improved. Fig.10 The solid line in the middle is a schematic diagram of the response value after the test condition information is optimized, and the dotted line is a schematic diagram of the response value after the test condition information is not optimized.

[0144] Reference Fig.11 , Fig.11 It is a flow chart of another method for determining the location of a leak hole provided in an embodiment of the present application.

[0145] S1101, controlling the air intake pipe to move along the surface of the target battery so that the air intake pipe absorbs the leaked gas of the target battery.

[0146] S1102, determining a first time point corresponding to the moving starting point of the air intake pipe, and determining a second time point corresponding to a response peak value in the response signal.

[0147] S1103, determining a first ratio between the volume of the intake duct and the intake speed of the intake duct, and determining a fourth time duration for the leakage air to be transmitted in the intake duct according to the first ratio.

[0148] S1104, determining a second ratio between the volume of the chamber and the air intake speed, and determining a fifth time duration between the leakage gas entering the chamber and the leakage gas leaving the sensor according to the second ratio.

[0149] S1105: Determine the second duration according to the fourth duration and the fifth duration.

[0150] S1106, obtaining a third time length required for the sensor to generate a response signal.

[0151] S1107, determining a delay duration according to the second duration and the third duration.

[0152] S1108: Determine a duration difference between the first duration and the delay duration.

[0153] S1109, determining the product of the time difference and the moving speed of the intake pipe.

[0154] S1110, determining the location of the leak hole on the target battery according to the product.

[0155] In one embodiment, if Figure 1 As shown, a leak hole position positioning system is also provided, the system includes a leak hole position detection device and a processor, the leak hole position detection device includes an air suction pipe, a chamber, and a sensor arranged in the chamber, and one end of the air suction pipe is connected to the chamber.

[0156] A processor is used to execute the steps provided by any of the above method embodiments.

[0157] In one of the embodiments, the leak hole position detection device further includes a moving component, and the suction pipe is connected to the moving component;

[0158] A processor for sending control instructions to the mobile component;

[0159] The moving component is used for controlling the air intake pipe to move along the surface of the target battery based on the control instruction.

[0160] In one embodiment, the sensor is configured to generate a response signal based on a concentration of leaked gas from a target battery discharged into the chamber through the suction pipe.

[0161] It should be understood that, although the steps in the flowcharts involved in the above embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps is not strictly limited in order, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above embodiments may include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0162] Based on the same inventive concept, the embodiment of the present application also provides a leak position determination device for implementing the leak position determination method involved above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above method, so the specific limitations in one or more leak position determination device embodiments provided below can refer to the limitations of the leak position determination method above, and will not be repeated here.

[0163] In one embodiment, Fig.12 As shown, Fig.12 12 is one of the structural schematic diagrams of the leak hole position determination device provided in the embodiment of the present application, and the device 1200 includes:

[0164] A control module 1201 is used to control the air intake pipe to move along the surface of the target battery so that the air intake pipe inhales the leaked gas of the target battery;

[0165] A first determination module 1202 is used to determine a first time point corresponding to a moving starting point of the air intake pipe, and to determine a second time point corresponding to a response peak in a response signal; the response signal is generated by the sensor based on leakage of the target battery;

[0166] The second determining module 1203 is used to determine the position of the leak hole on the target battery according to the first time period between the second time point and the first time point and the moving speed of the air intake pipe.

[0167] In one embodiment, if Fig.13 As shown, Fig.13 1 is a second structural diagram of a leak hole position determination device provided in an embodiment of the present application. The second determination module 1203 in the device 1300 includes:

[0168] The first determination submodule 1301 is used to determine the delay duration of the response peak;

[0169] The second determination submodule 1302 is used to determine the position of the leak hole on the target battery according to the first duration, the moving speed of the air intake pipe and the delay duration.

[0170] In one embodiment, if Fig.14 As shown, Fig.14 3 is a structural diagram of a leak hole position determination device provided in an embodiment of the present application. The first determination submodule 1301 in the device 1400 includes:

[0171] The first determining unit 1401 is used to determine a second time length from when the leaked air enters the air intake pipe to when the leaked air leaves the sensor;

[0172] The second determining unit 1402 is configured to determine a delay duration according to a second duration.

[0173] In one embodiment, the second determining unit 1402 is specifically configured to obtain a third time duration required for the sensor to generate a response signal; and determine a delay time duration according to the second time duration and the third time duration.

[0174] In one of the embodiments, the first determination unit 1401 is specifically used to determine a first ratio between the volume of the intake duct and the intake speed of the intake duct, and determine a fourth duration of the leakage transmission in the intake duct according to the first ratio; determine a second ratio between the volume of the chamber and the intake speed, and determine a fifth duration between the leakage entering the chamber and the leakage leaving the sensor according to the second ratio; and determine the second duration according to the fourth duration and the fifth duration.

[0175] In one embodiment, the fifth duration is not less than the first preset duration and not greater than the second ratio.

[0176] In one embodiment, the second determination submodule 1302 is specifically used to determine the time difference between the first time duration and the delay time duration; determine the product of the time difference and the moving speed of the intake pipe; and determine the position of the leak hole on the target battery according to the product.

[0177] In one of the embodiments, the moving speed of the intake pipe is determined based on other test condition information except the moving speed; the inner diameter of the intake pipe is determined based on other test condition information except the inner diameter; the suction speed of the intake pipe is determined based on other test condition information except the suction speed.

[0178] Each module in the above-mentioned leak hole location determination device can be implemented in whole or in part by software, hardware, or a combination thereof. Each of the above-mentioned modules can be embedded in or independent of a processor in a computer device in the form of hardware, or can be stored in a memory in a computer device in the form of software, so that the processor can call and execute operations corresponding to each of the above modules.

[0179] In one embodiment, a computer device is provided. The computer device may be a terminal, and its internal structure diagram may be as follows: Fig.15 As shown. The computer device includes a processor, a memory, a communication interface, a display screen and an input device connected through a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be achieved through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. When the computer program is executed by the processor, a method for determining the position of a leak hole is implemented. The display screen of the computer device can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covered on the display screen, or a button, a trackball or a touch pad set on the computer device housing, or an external keyboard, touch pad or mouse, etc.

[0180] Those skilled in the art will understand that Fig.15 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0181] In one embodiment, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and when the processor executes the computer program, the following steps are implemented:

[0182] Controlling the air intake pipe to move along the surface of the target battery so that the air intake pipe inhales the leaked gas of the target battery;

[0183] Determine a first time point corresponding to a moving starting point of the air intake pipe, and determine a second time point corresponding to a response peak in a response signal generated by the sensor based on leakage of the target battery;

[0184] The position of the leak hole on the target battery is determined according to a first time period between the second time point and the first time point and a moving speed of the air intake pipe.

[0185] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0186] Determine the delay time of the response peak; and determine the position of the leak hole on the target battery according to the first time, the moving speed of the suction pipe and the delay time.

[0187] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0188] Determine a second time duration from when the leaked air enters the air intake pipe to when the leaked air leaves the sensor; and determine a delay time duration based on the second time duration.

[0189] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0190] A third time duration required for the sensor to generate a response signal is obtained; and a delay time duration is determined according to the second time duration and the third time duration.

[0191] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0192] Determine a first ratio between the volume of the intake duct and the intake speed of the intake duct, and determine a fourth duration of the leakage gas transmission in the intake duct based on the first ratio; determine a second ratio between the volume of the chamber and the intake speed, and determine a fifth duration between the leakage gas entering the chamber and the leakage gas leaving the sensor based on the second ratio; determine the second duration based on the fourth duration and the fifth duration.

[0193] In one embodiment, the fifth duration is not less than the first preset duration and not greater than the second ratio.

[0194] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0195] Determine the time difference between the first time length and the delay time length; determine the product of the time difference and the moving speed of the suction pipe; and determine the position of the leak hole on the target battery according to the product.

[0196] In one embodiment, the moving speed of the intake pipe is determined based on other test condition information except the moving speed; the inner diameter of the intake pipe is determined based on other test condition information except the inner diameter; the intake speed of the intake pipe is determined based on other test condition information except the intake speed.

[0197] In one embodiment, a computer readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:

[0198] Controlling the air intake pipe to move along the surface of the target battery so that the air intake pipe inhales the leaked gas of the target battery;

[0199] Determine a first time point corresponding to a moving starting point of the air intake pipe, and determine a second time point corresponding to a response peak in a response signal generated by the sensor based on leakage of the target battery;

[0200] The position of the leak hole on the target battery is determined according to a first time period between the second time point and the first time point and a moving speed of the air intake pipe.

[0201] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0202] Determine the delay time of the response peak; and determine the position of the leak hole on the target battery according to the first time, the moving speed of the suction pipe and the delay time.

[0203] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0204] Determine a second time duration from when the leaked air enters the air intake pipe to when the leaked air leaves the sensor; and determine a delay time duration based on the second time duration.

[0205] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0206] A third time duration required for the sensor to generate a response signal is obtained; and a delay time duration is determined according to the second time duration and the third time duration.

[0207] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0208] Determine a first ratio between the volume of the intake duct and the intake speed of the intake duct, and determine a fourth duration of the leakage gas transmission in the intake duct based on the first ratio; determine a second ratio between the volume of the chamber and the intake speed, and determine a fifth duration between the leakage gas entering the chamber and the leakage gas leaving the sensor based on the second ratio; determine the second duration based on the fourth duration and the fifth duration.

[0209] In one embodiment, the fifth duration is not less than the first preset duration and not greater than the second ratio.

[0210] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0211] Determine the time difference between the first time length and the delay time length; determine the product of the time difference and the moving speed of the suction pipe; and determine the position of the leak hole on the target battery according to the product.

[0212] In one embodiment, the moving speed of the intake pipe is determined based on other test condition information except the moving speed; the inner diameter of the intake pipe is determined based on other test condition information except the inner diameter; the intake speed of the intake pipe is determined based on other test condition information except the intake speed.

[0213] In one embodiment, a computer program product is provided, comprising a computer program, which, when executed by a processor, implements the following steps:

[0214] Controlling the air intake pipe to move along the surface of the target battery so that the air intake pipe inhales the leaked gas of the target battery;

[0215] Determine a first time point corresponding to a moving starting point of the air intake pipe, and determine a second time point corresponding to a response peak in a response signal generated by the sensor based on leakage of the target battery;

[0216] The position of the leak hole on the target battery is determined according to a first time period between the second time point and the first time point and a moving speed of the air intake pipe.

[0217] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0218] Determine the delay time of the response peak; and determine the position of the leak hole on the target battery according to the first time, the moving speed of the suction pipe and the delay time.

[0219] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0220] Determine a second time duration from when the leaked air enters the air intake pipe to when the leaked air leaves the sensor; and determine a delay time duration based on the second time duration.

[0221] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0222] A third time duration required for the sensor to generate a response signal is obtained; and a delay time duration is determined according to the second time duration and the third time duration.

[0223] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0224] Determine a first ratio between the volume of the intake duct and the intake speed of the intake duct, and determine a fourth duration of the leakage gas transmission in the intake duct based on the first ratio; determine a second ratio between the volume of the chamber and the intake speed, and determine a fifth duration between the leakage gas entering the chamber and the leakage gas leaving the sensor based on the second ratio; determine the second duration based on the fourth duration and the fifth duration.

[0225] In one embodiment, the fifth duration is not less than the first preset duration and not greater than the second ratio.

[0226] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0227] Determine the time difference between the first time length and the delay time length; determine the product of the time difference and the moving speed of the suction pipe; and determine the position of the leak hole on the target battery according to the product.

[0228] In one embodiment, the moving speed of the intake pipe is determined based on other test condition information except the moving speed; the inner diameter of the intake pipe is determined based on other test condition information except the inner diameter; the intake speed of the intake pipe is determined based on other test condition information except the intake speed.

[0229] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties.

[0230] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in the present application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on regional blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in the present application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but are not limited to this.

[0231] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0232] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A method for determining a leak hole position, characterized in that: The method comprises: Controlling the air intake pipe to move along the surface of the target battery so that the air intake pipe inhales the leaked gas of the target battery; Determine a first time point corresponding to a moving starting point of the air intake pipe, and determine a second time point corresponding to a response peak in a response signal generated by a sensor based on leakage of a target battery; The position of the leak hole on the target battery is determined according to a first time length between the second time point and the first time point and a moving speed of the air intake pipe.

2. The method according to claim 1, characterized in that The determining the position of the leak hole on the target battery according to a first time length between the second time point and the first time point and a moving speed of the air intake pipe includes: Determining the delay duration of the response peak; The position of the leak hole on the target battery is determined according to the first time duration, the moving speed of the air intake pipe, and the delay time duration.

3. The method according to claim 1, characterized in that The determining of the delay duration of the response peak comprises: determining a second time duration from when the leaked gas enters the air intake pipe to when the leaked gas leaves the sensor; The delay duration is determined according to the second duration.

4. The method according to claim 3, characterized in that The determining the delay duration according to the second duration includes: Acquire a third time duration required for the sensor to generate the response signal; The delay duration is determined according to the second duration and the third duration.

5. The method according to claim 3 or 4, characterized in that: The determining of a second time duration from when the leaked air enters the air intake pipe to when the leaked air leaves the sensor comprises: determining a first ratio between a volume of the intake pipe and an intake speed of the intake pipe, and determining a fourth time duration for the leaked air to be transmitted in the intake pipe according to the first ratio; determining a second ratio between the volume of the chamber and the air inhalation speed, and determining a fifth time duration between the leakage gas entering the chamber and the leakage gas leaving the sensor according to the second ratio; The second duration is determined according to the fourth duration and the fifth duration.

6. The method according to claim 5, characterized in that The fifth duration is not less than the first preset duration and not greater than the second ratio.

7. The method according to any one of claims 1 to 4, characterized in that: The determining the position of the leak hole on the target battery according to the first duration, the moving speed of the air intake pipe and the delay duration includes: Determine a duration difference between the first duration and the delay duration; Determine the product of the time difference and the moving speed of the suction pipe; The location of the leak hole on the target battery is determined according to the product.

8. The method according to any one of claims 1 to 4, characterized in that: The moving speed of the air intake pipe is determined based on other test condition information except the moving speed; The inner diameter of the intake pipe is determined based on other test condition information other than the inner diameter; The air intake speed of the air intake pipe is determined based on other test condition information except the air intake speed.

9. A leak hole location determination device, characterized in that: The device comprises: A control module, used for controlling the air intake pipe to move along the surface of the target battery so that the air intake pipe inhales the leaked gas of the target battery; A first determination module, used to determine a first time point corresponding to a moving starting point of the air intake pipe, and to determine a second time point corresponding to a response peak in a response signal; the response signal is generated by the sensor based on leakage of a target battery; The second determination module is used to determine the position of the leak hole on the target battery according to a first time length between the second time point and the first time point and a moving speed of the intake pipe.

10. A leak hole location positioning system, characterized in that: The system includes a leak position detection device and a processor, wherein the leak position detection device includes an air intake pipe, a chamber, and a sensor disposed in the chamber, wherein one end of the air intake pipe is connected to the chamber; The processor is used to execute the steps of the method described in any one of claims 1 to 8.

11. The system according to claim 10, characterized in that The leak hole position detection device also includes a moving component, and the air suction pipe is connected to the moving component; The processor is used to send a control instruction to the mobile component; The moving component is used to control the air intake pipe to move along the surface of the target battery based on the control instruction.

12. The system according to claim 10 or 11, characterized in that The sensor is configured to generate a response signal based on a concentration of leaked gas from a target battery discharged into the chamber by the air intake pipe.

13. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 8 are implemented.

14. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 8 are implemented.

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