Assembly detection method, device, equipment and system for voltage patrol device

Abstract

The application discloses an assembly detection method, device, equipment and system of a voltage inspector, and the method comprises the following steps: acquiring a standard vibration spectrum and excitation source information when a test voltage inspector interface module is normally connected with a single cell of a test electric pile; inputting the excitation source information into the current voltage inspector interface module to obtain a current vibration spectrum when the current voltage inspector interface module is connected with the single cell of the current electric pile; and judging whether the connection between the current voltage inspector interface module and the single cell in the current electric pile is normal according to the standard vibration spectrum and the current vibration spectrum. Through the comparison of the vibration spectra, it can be quickly and accurately detected whether the interface connection between the voltage inspector and the single cell of the electric pile is abnormal, the assembly inspection time is reduced, and the risk of electric pile testing and electric pile running caused by poor contact of the voltage inspector is avoided.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of fuel cells, and particularly relates to an assembly detection method, device, equipment and system of a voltage monitor. BACKGROUND

[0002] A proton exchange membrane fuel cell is a device for directly converting chemical energy into electrical energy, and has advantages of low working temperature, fast start, high reaction efficiency, zero emission, etc., and is regarded as the most promising power source for new energy vehicles. A single fuel cell can only provide a voltage of about 1V in an open circuit, and further decreases to 0.6-0.7V when working with the change of current density, and therefore, in actual application, a plurality of fuel cells are usually stacked and connected in series together, and are provided with a current collector plate, an insulating plate and an end plate, and the end plate and the cell structure are tightly pressed together by using a fastener to form a stacked structure, which is called an electric pile. The electric pile outputs power by doing work on the outside, but since the electric pile is stacked by a plurality of single cells, in order to ensure the normal operation of the electric pile, the voltage of the single cell needs to be monitored to judge the performance of the electric pile cell. At present, two single cells are generally monitored together, or a single cell is monitored at both ends of the electric pile. Such a voltage monitoring device is called a voltage monitor.

[0003] The voltage monitor (CVM) of the fuel cell needs to be installed on the single cell of the electric pile for voltage monitoring. For a high-power electric pile, since the number of single cells is large, the number of voltage signals to be detected is large, which leads to a large number of interfaces between the voltage monitor and the single cell of the electric pile. How to quickly and accurately judge whether the interface connection between the voltage monitor and the single cell of the electric pile is normal is a problem to be solved. SUMMARY

[0004] Embodiments of the present application provide an assembly detection method, device, equipment and system of a voltage monitor, which can at least to some extent quickly and accurately detect whether the interface connection between the voltage monitor and the single cell of the electric pile is abnormal, reduce the assembly inspection time, and avoid the risk of electric pile test and electric pile running due to poor contact of the voltage monitor.

[0005] Other characteristics and advantages of the present application will become apparent from the following detailed description, or will be learned by practice of the present application.

[0006] According to a first aspect of the embodiments of the present application, an assembly detection method of a voltage monitor is provided, comprising:

[0007] obtaining a standard vibration spectrum and excitation source information when an interface module of a test voltage monitor is normally connected with a single cell in a test electric pile;

[0008] inputting the excitation source information into an interface module of the current voltage inspector to obtain a current vibration spectrum when the interface module of the current voltage inspector is connected with the single cell of the current stack;

[0009] determining whether the connection between the interface module of the current voltage inspector and the single cell in the current stack is normal according to the standard vibration spectrum and the current vibration spectrum.

[0010] In some embodiments of the present application, based on the foregoing scheme, the determining whether the connection between the interface module of the current voltage inspector and the single cell in the current stack is normal according to the standard vibration spectrum and the current vibration spectrum comprises:

[0011] In a case where a difference between the maximum amplitude of the standard vibration spectrum and the maximum amplitude of the current vibration spectrum is within a preset range, it is determined that the connection between the interface module of the current voltage inspector and the single cell in the current stack is normal.

[0012] In some embodiments of the present application, based on the foregoing scheme, the determining whether the connection between the interface module of the current voltage inspector and the single cell in the current stack is normal according to the standard vibration spectrum and the current vibration spectrum comprises:

[0013] obtaining a standard amplitude average value of the standard vibration spectrum and a current amplitude average value of the current vibration spectrum in the same time period;

[0014] In a case where a difference between the standard amplitude average value and the current amplitude average value is within a preset range, it is determined that the connection between the interface module of the current voltage inspector and the single cell in the current stack is normal.

[0015] In some embodiments of the present application, based on the foregoing scheme, the determining whether the connection between the interface module of the current voltage inspector and the single cell in the current stack is normal according to the standard vibration spectrum and the current vibration spectrum comprises:

[0016] determining a first time difference corresponding to two same amplitudes in the current vibration spectrum;

[0017] determining a second time difference corresponding to two same amplitudes in the same period as the first time difference in the standard vibration spectrum;

[0018] In a case where a difference between the first time difference and the second time difference is within a preset range, it is determined that the connection between the interface module of the current voltage inspector and the single cell in the current stack is normal.

[0019] In some embodiments of the present application, based on the foregoing scheme, the determining whether the interface module of the current voltage inspector is normally connected with the single cells in the current stack according to the first slope and the second slope comprises:

[0020] The slope of all adjacent two amplitudes in the preset period in the current vibration spectrum is determined as a first slope;

[0021] The slope of all adjacent two amplitudes in the preset period in the standard vibration spectrum is determined as a second slope;

[0022] The determining whether the interface module of the current voltage inspector is normally connected with the single cells in the current stack according to the first slope and the second slope comprises:

[0023] In some embodiments of the present application, based on the foregoing scheme, the determining whether the interface module of the current voltage inspector is normally connected with the single cells in the current stack according to the first slope and the second slope comprises:

[0024] In a case where the difference between the average value of the first slope and the average value of the second slope is within a preset range, it is determined that the interface module of the current voltage inspector is normally connected with the single cells in the current stack.

[0025] In some embodiments of the present application, based on the foregoing scheme, the number of the interface modules of the test voltage inspector is the same as that of the current voltage inspector, the number of the interface modules of the current voltage inspector is more than one, and is less than the number of the single cells of the current stack.

[0026] According to a second aspect of the embodiments of the present application, a device for assembling and detecting a voltage inspector is provided, comprising:

[0027] A standard vibration spectrum acquisition module is configured to acquire a standard vibration spectrum and excitation source information when the interface modules of a test voltage inspector are normally connected with the single cells of a test stack.

[0028] A current vibration spectrum acquisition module is configured to input the excitation source information to the interface modules of a current voltage inspector to obtain a current vibration spectrum when the interface modules of the current voltage inspector are connected with the single cells of a current stack.

[0029] A vibration spectrum comparison module is configured to determine whether the interface modules of the current voltage inspector are normally connected with the single cells in the current stack according to the standard vibration spectrum and the current vibration spectrum.

[0030] According to a third aspect of the embodiments of the present application, a voltage inspector assembly detection device is provided, comprising a processor and a memory, the memory storing computer program instructions capable of being executed by the processor, and the processor executes the computer program instructions to implement the steps of the method according to any one of the first aspect.

[0031] According to a fourth aspect of the embodiments of the present application, a voltage inspector assembly detection system is provided, comprising a voltage inspector, a battery stack, a vibration collection point, a vibration and noise analyzer, and the voltage inspector assembly detection device described above; wherein,

[0032] The voltage inspector comprises an interface module, the interface module is used to connect with a single cell in the battery stack, and each interface module is provided with the vibration collection point, and the vibration collection point is connected with the voltage inspector assembly detection device through the vibration and noise analyzer.

[0033] In the present application, the standard vibration spectrum and the excitation source information when the interface module of the test voltage inspector is normally connected with the single cell of the test battery stack are acquired; the excitation source information is input to the interface module of the current voltage inspector to obtain the current vibration spectrum when the interface module of the current voltage inspector is connected with the single cell of the current battery stack; and whether the connection between the interface module of the current voltage inspector and the single cell in the current battery stack is normal is judged according to the standard vibration spectrum and the current vibration spectrum. Through the comparison of the vibration spectra, whether the interface connection between the voltage inspector and the single cell of the battery stack is abnormal can be quickly and accurately detected, the assembly inspection time is reduced, and the risk of battery stack test and battery stack running due to poor contact of the voltage inspector is avoided.

[0034] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0035] The drawings incorporated into the specification and forming a part thereof, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. In the drawings:

[0036] Figure 1 A flowchart of a voltage inspector assembly detection method in an embodiment is shown;

[0037] Figure 2 A schematic diagram of the assembly of the test voltage inspector and the test battery stack is shown in Figure 1 ​

[0038] Figure 3 FIG. 1 shows a block diagram of an assembly testing system for a voltage patrol in one embodiment;

[0039] Figure 4 FIG. 2 shows a diagram of a pulse excitation and response in one embodiment;

[0040] Figure 5 FIG. 3 shows a diagram of a broadband noise excitation in one embodiment;

[0041] Figure 6 FIG. 4 shows a diagram of responses of interface modules under broadband noise excitation in one embodiment;

[0042] Figure 7 FIG. 5 shows a block diagram of an assembly testing device for a voltage patrol in one embodiment;

[0043] Figure 8 FIG. 6 shows a block diagram of an assembly testing apparatus for a voltage patrol in one embodiment. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0045] In addition, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the present application. One skilled in the relevant art will recognize, however, that the technology can be practiced without one or more of the specific details, or with other methods, components, devices, steps, etc. In other instances, well-known methods, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the present application.

[0046] The block diagrams shown in the drawings are only functional entities, and do not necessarily correspond to physically independent entities. That is, these functional entities can be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0047] The flowcharts shown in the drawings are only illustrative, and do not necessarily include all contents and operations / steps, nor are they necessarily executed in the order described. For example, some operations / steps can be further decomposed, and some operations / steps can be combined or partially combined, so the actual execution order can be changed according to actual conditions.

[0048] It should also be noted that the terms "first", "second", and the like in the description, claims, and drawings of the present application are used to distinguish like objects, and are not necessarily used to describe a particular sequential or chronological order. It should be understood that the objects thus designated can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described.

[0049] In order for those skilled in the art to better understand the present application, first, the application scenario involved in the present application will be briefly described.

[0050] A high-power stack usually includes hundreds or thousands of single cells. Taking a stack including 500 single cells as an example, even if 2 single cells are monitored for voltage, the voltage patrol detector needs 250 interfaces to connect with the single cells in the stack. At the same time, because the thickness of the single cell is small (usually only a few millimeters), it is difficult to assemble the interface with the voltage patrol detector, and it is difficult to check whether the connection is normal after assembly. On the production line, it is usually necessary to manually check each interface of the voltage patrol detector to determine whether the interface and the single cell in the stack are normally connected, which not only leads to a long assembly inspection time, but also cannot guarantee the correctness of the inspection.

[0051] The embodiment of the present application divides the interfaces of the voltage patrol detector into modules, each interface module includes multiple interfaces, each interface is connected with a single cell in the stack, acquires the standard vibration spectrum and excitation source information when the interface module of the test voltage patrol detector is normally connected with the single cell in the test stack, and then inputs the same excitation source information to the same interface module of the current voltage patrol detector to obtain the current vibration spectrum. Finally, by comparing the two vibration spectra, it is determined whether the interface module of the current voltage patrol detector and the single cell in the current stack are normally connected. Through the above scheme, it can not only quickly and accurately detect whether the interface connection between the voltage patrol detector and the single cell of the stack is abnormal, but also can locate the abnormal interface, reduce the assembly inspection time, and avoid the risk of stack testing and stack running due to poor contact of the voltage patrol detector.

[0052] Figure 1 A flowchart of a method for detecting assembly of a voltage patrol detector in an embodiment is shown. As shown in Figure 1 In some embodiments, the method for detecting assembly of the voltage patrol detector can include the following steps 101 to 103.

[0053] In step 101, the standard vibration spectrum and excitation source information when the interface module of the test voltage inspector is normally connected with the single cells in the test stack are acquired.

[0054] It can be understood that the interface module of the test voltage inspector refers to the module composed of the interface combination of the test voltage inspector and the single cells in the test stack. The number of the interface module can be less than the number of the single cells in the test stack. For the voltage inspector with 2 cells per inspection, the interface module can be 1 / 2 of the number of the single cells, i.e., each interface module includes one interface, and one interface is connected with two single cells in the stack. Of course, in order to improve the detection efficiency, the number of the interface module can be less, for example, each interface module includes twenty interfaces, and one interface is connected with two or one single cell in the stack. The number of the interface module can be determined according to the specific channel number of the voltage inspector, and each interface module is not connected, and if there is a voltage inspection signal line related connection, the connection should be removed to ensure that each interface module is independent of each other and the vibration spectrum does not interfere with each other.

[0055] Figure 2 As shown in Figure 1 The assembly schematic diagram of the test voltage inspector and the test stack in the embodiment is shown. After the stack subjected to the vibration test or the automobile road test is disassembled from other auxiliary related parts, the stack is kept in the compressed state and connected with the related devices of the test voltage inspector, and the test components such as the voltage inspector are retained. Figure 2 As shown, the bottom plate 5 and the pressing plate 1 (the current collector plate and the insulating plate are simplified into the bottom plate and the pressing plate), the stack core 4 (stacked by multiple single cells) and the test voltage inspector are included. The test voltage inspector includes multiple interface modules 3 connected with the single cells of the stack, and each interface module 3 is connected with the single cell of the stack core 4 through the interface 2. At present, two single cells in the stack form an interface and are connected with the interface of the voltage inspector, and about 20 interfaces of the test voltage inspector can form an interface module. Of course, one single cell at the two ends of the stack core sometimes forms an interface and is connected with the interface module of the test voltage inspector. After assembly, each interface module of the test voltage inspector is normally connected with the single cell in the test stack, and the standard vibration spectrum corresponding to each interface module can be obtained by inputting the excitation source information to each interface module of the test voltage inspector.

[0056] Figure 3 The structure schematic diagram of the assembly detection system of the voltage inspector in one embodiment is shown. As Figure 3As shown, the assembly detection system of the voltage patroller may include: a voltage patroller, a battery stack, a vibration collection point, a vibration and noise analyzer, and an assembly detection device for the voltage patroller. The voltage patroller includes an interface module for connecting to the single cells in the battery stack. Each interface module is provided with a vibration collection point, which is connected to the assembly detection device of the voltage patroller via the vibration and noise analyzer. The assembly detection device of the voltage patroller is configured to perform steps 101 to 103. Of course, the assembly detection system of the voltage patroller may also include an excitation source, which is connected to each interface module of the voltage patroller and the assembly detection device of the voltage patroller, respectively, so that under the control of the assembly detection device of the voltage patroller, excitation source information is input to each interface module. The positions of the excitation points and the vibration collection points on each interface module are the same or have little difference. The vibration collection points and the vibration and noise analyzer are connected via a signal collection cable so that the collected vibration data is transmitted to the assembly detection device of the voltage patroller via the vibration and noise analyzer, ultimately obtaining a vibration spectrum and information such as the amplitude, mode shape, period, and amplitude average of the vibration spectrum.

[0057] In step 102, excitation source information is input to the interface module of the current voltage patroller to obtain a current vibration spectrum when the interface module of the current voltage patroller is connected to the single battery of the current battery stack.

[0058] It is understandable that the current voltage patroller refers to the voltage patroller to be tested, and the excitation source information input to the interface module of the current voltage patroller must be the same as the excitation source information input to the same interface module of the test voltage patroller to facilitate subsequent comparison.

[0059] During implementation, pulse excitation or broadband noise excitation can be input into the voltage patroller according to different types of the voltage patroller. Figure 4 FIG1 shows a schematic diagram of pulse excitation and response in one embodiment. Figure 4 As shown in FIG, a pulse of unit 1 is given to the voltage patroller, and its amplitude gradually decreases from large to small. As time goes by, the response waveform gradually returns to the static equilibrium position. Figure 5 FIG. 4 shows a schematic diagram of broadband noise excitation in one embodiment, Figure 6 FIG. 1 is a schematic diagram showing the response of each interface module under broadband noise excitation in one embodiment. Figure 6 As shown, Figure 5 After the broadband noise excitation in the voltage patroller acts on the voltage patroller, its response waveform is similar to Figure 4 Completely different.

[0060] Since there are multiple interface modules, it is necessary to input the excitation source information into each interface module, and the current vibration spectrum obtained is also the current vibration spectrum corresponding to each interface module. Figure 6As shown, the current vibration spectrum corresponding to different interface modules is also different.

[0061] In step 103, according to the standard vibration spectrum and the current vibration spectrum, it is judged whether the connection of the interface module of the current voltage inspector and the single cell in the current stack is normal.

[0062] It can be understood that the standard vibration spectrum and the current vibration spectrum in the embodiments of the application are the vibration spectrum corresponding to the same interface module. For example, the test voltage inspector is provided with interface module 1, interface module 2 and interface module 3, and after inputting the excitation source information, standard vibration spectrum 1, standard vibration spectrum 2 and standard vibration spectrum 3 are obtained. The current voltage inspector is provided with interface module 1', interface module 2' and interface module 3' at the same position, and after inputting the same excitation source information, current vibration spectrum 1', current vibration spectrum 2' and current vibration spectrum 3' are obtained. According to the standard vibration spectrum 1 and the current vibration spectrum 1', it is judged whether the connection of the interface module 1' is normal, according to the standard vibration spectrum 2 and the current vibration spectrum 2', it is judged whether the connection of the interface module 2' is normal, and according to the standard vibration spectrum 3 and the current vibration spectrum 3', it is judged whether the connection of the interface module 3' is normal.

[0063] In some embodiments, the connection of the interface module of the current voltage inspector and the single cell in the current stack can be determined to be normal when the difference between the maximum amplitude of the standard vibration spectrum and the maximum amplitude of the current vibration spectrum is within a preset range.

[0064] The lower limit of the preset range can be 0, and the upper limit can be set according to the maximum amplitude of the standard vibration spectrum, for example, it can be 10% of the maximum amplitude of the standard vibration spectrum, of course, it can also be set to 5% of the maximum amplitude of the standard vibration spectrum or other values, and the specific setting can be determined according to the actual situation.

[0065] In some embodiments, the standard amplitude average of the standard vibration spectrum and the current amplitude average of the current vibration spectrum in the same time period can be obtained, and the connection of the interface module of the current voltage inspector and the single cell in the current stack can be determined to be normal when the difference between the standard amplitude average and the current amplitude average is within a preset range.

[0066] The lower limit of the preset range can be 0, and the upper limit can be set according to the standard amplitude average of the standard vibration spectrum in different time, for example, it can be 10% of the standard amplitude average of the standard vibration spectrum, of course, it can also be set to 5% of the standard amplitude average of the standard vibration spectrum or other values, and the specific setting can be determined according to the actual situation.

[0067] Referring back to Figure 6The standard amplitude average value of the standard vibration spectrum in the time period from t=0 to t=T and the current amplitude average value of the current vibration spectrum in the time period from t=0 to t=T can be compared, and if the difference between the two is less than 10% of the standard amplitude average value of the standard vibration spectrum in the time period from t=0 to t=T, it is determined that the connection is normal.

[0068] In some embodiments, a first time difference corresponding to two same amplitudes in the current vibration spectrum can be determined; a second time difference corresponding to two same amplitudes in the standard vibration spectrum in the same period as the first time difference can be determined; and if the difference between the first time difference and the second time difference is within a preset range, it is determined that the interface module of the current voltage inspector and the single cell in the current stack are normally connected.

[0069] The lower limit of the preset range can be 0, and the upper limit can be set according to the second time difference corresponding to the two same amplitudes in the standard vibration spectrum, for example, it can be 10% of the second time difference corresponding to the two same amplitudes in the standard vibration spectrum, or it can be set to 5% or other values of the second time difference corresponding to the two same amplitudes in the standard vibration spectrum. The specific setting can be determined according to the actual situation.

[0070] It can be understood that the standard vibration spectrum and the current vibration spectrum can each include vibration waveforms of multiple different periods, and the embodiments of the present application need to compare the first time difference and the second time difference based on vibration waveforms of the same period to improve the accuracy of the comparison result.

[0071] In some embodiments, the slope of all adjacent two amplitudes in a preset period in the current vibration spectrum can be determined as a first slope, the slope of all adjacent two amplitudes in a preset period in the standard vibration spectrum can be determined as a second slope, and whether the interface module of the current voltage inspector and the single cell in the current stack are normally connected can be determined according to the first slope and the second slope.

[0072] It can be understood that the slope corresponding to the adjacent two amplitudes can be obtained by dividing the two amplitudes by the time difference corresponding to the two amplitudes, and then the connection can be determined according to the slope.

[0073] It can be understood that the standard vibration spectrum and the current vibration spectrum can each include vibration waveforms of multiple different periods, and the embodiments of the present application need to compare the first slope and the second slope based on vibration waveforms of the same period to improve the accuracy of the comparison result.

[0074] In the implementation process, if the difference between the average value of the first slope and the average value of the second slope is within a preset range, it is determined that the interface module of the current voltage inspector and the single cell in the current stack are normally connected.

[0075] Of course, the maximum value or the minimum value of the first slope and the second slope can also be compared. If the difference between the maximum value of the first slope and the maximum value of the second slope is within a preset range, or the difference between the minimum value of the first slope and the minimum value of the second slope is within a preset range, it can also be determined that the interface module of the current voltage inspector and the single cell in the current stack are normally connected.

[0076] By establishing a standard vibration spectrum that meets the normal connection of the test interface module of the test stack and the test voltage inspector in the vibration test or the automobile road test, the interface module of the newly assembled current stack and the current voltage inspector is connected, the current vibration spectrum is obtained under the same test condition as the standard vibration spectrum, and whether the interface module of the newly assembled current voltage inspector is connected to the single cell in the current stack without hindrance (or whether it meets the vibration test or the automobile road test) is determined by comparison. Compared with the scheme in which whether the connection of each interface is normal after artificial inspection on the production line can be determined, the assembly inspection time is greatly reduced, the accuracy of interface connection determination is ensured, the risk of stack test and stack running caused by poor contact of the voltage inspector is avoided, the core competitiveness of the product is improved, and the after-sales service cost of the product is reduced.

[0077] The device embodiment of the present application is introduced below, which can be used to execute the assembly detection method of the voltage inspector in the above-mentioned embodiments of the present application. For details not disclosed in the device embodiment of the present application, please refer to the above-mentioned assembly detection method of the voltage inspector.

[0078] Figure 7 A block diagram of the assembly detection device of the voltage inspector in an embodiment is shown. As Figure 7 shown, in some embodiments, the assembly detection device of the voltage inspector in the embodiments of the present application can include a standard vibration spectrum acquisition module 701, a current vibration spectrum acquisition module 702, and a vibration spectrum comparison module 703, wherein the standard vibration spectrum acquisition module 701 is configured to acquire a standard vibration spectrum and excitation source information when the interface module of the test voltage inspector is normally connected to the single cell of the test stack; the current vibration spectrum acquisition module 702 is configured to input the excitation source information to the interface module of the current voltage inspector to obtain a current vibration spectrum when the interface module of the current voltage inspector is connected to the single cell of the current stack; and the vibration spectrum comparison module 703 is configured to determine whether the connection of the interface module of the current voltage inspector and the single cell in the current stack is normal according to the standard vibration spectrum and the current vibration spectrum.

[0079] In some embodiments of the present application, based on the foregoing scheme, the vibration spectrum comparison module 703 is further configured to determine that the connection between the interface module of the current voltage inspector and the single battery in the current battery stack is normal when the difference between the maximum amplitude of the standard vibration spectrum and the maximum amplitude of the current vibration spectrum is within a preset range.

[0080] In some embodiments of the present application, based on the foregoing scheme, the vibration spectrum comparison module 703 is further configured to obtain a standard amplitude average value of the standard vibration spectrum and a current amplitude average value of the current vibration spectrum in the same time period; and determine that the connection between the interface module of the current voltage inspector and the single battery in the current battery stack is normal when the difference between the standard amplitude average value and the current amplitude average value is within a preset range.

[0081] In some embodiments of the present application, based on the foregoing scheme, the vibration spectrum comparison module 703 is further configured to determine a first time difference corresponding to two same amplitudes in the current vibration spectrum; determine a second time difference corresponding to the two same amplitudes in the standard vibration spectrum within the same period as the first time difference; and determine that the connection between the interface module of the current voltage inspector and the single battery in the current battery stack is normal when the difference between the first time difference and the second time difference is within a preset range.

[0082] In some embodiments of the present application, based on the foregoing scheme, the vibration spectrum comparison module 703 is further configured to determine a first slope of all adjacent two amplitudes in a preset period in the current vibration spectrum as a first slope; determine a second slope of all adjacent two amplitudes in a preset period in the standard vibration spectrum as a second slope; and determine whether the connection between the interface module of the current voltage inspector and the single battery in the current battery stack is normal according to the first slope and the second slope.

[0083] In some embodiments of the present application, based on the foregoing scheme, the vibration spectrum comparison module 703 is further configured to determine that the connection between the interface module of the current voltage inspector and the single battery in the current battery stack is normal when the difference between the average value of the first slope and the average value of the second slope is within a preset range.

[0084] In some embodiments of the present application, based on the foregoing scheme, the number of the interface modules of the test voltage inspector is the same as the number of the interface modules of the current voltage inspector, the number of the interface modules of the current voltage inspector is more than one, and is less than the number of the single batteries of the current battery stack.

[0085] Based on the same inventive concept, the present application also provides an assembly detection device of a voltage inspector, Figure 8 FIG. 1 shows a structural schematic diagram of an assembly detection device of a voltage inspector in an embodiment. As shown in FIG. 1, the assembly detection device of the voltage inspector includes a test voltage inspector 1 and a standard voltage inspector 2. Figure 8As shown, the assembly detection device of the voltage patroller includes one or more memories 804, one or more processors 802 and at least one computer program (computer program instruction) stored in the memory 804 and executable on the processor 802. When the processor 802 executes the computer program, the method described above is implemented.

[0086] Among them, Figure 8 In the embodiment of the present invention, a bus architecture (represented by bus 800) is shown. Bus 800 may include any number of interconnected buses and bridges, and bus 800 links together various circuits including one or more processors represented by processor 802 and memory represented by memory 804. Bus 800 may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. Bus interface 805 provides an interface between bus 800 and receiver 801 and transmitter 803. Receiver 801 and transmitter 803 may be the same component, namely a transceiver, which provides a unit for communicating with various other devices over a transmission medium. Processor 802 is responsible for managing bus 800 and general processing, while memory 804 may be used to store data used by processor 802 when performing operations.

[0087] Based on the same inventive concept, an embodiment of the present application provides a computer-readable storage medium, in which computer program instructions are stored. When the computer program instructions are executed by a processor, the processor is prompted to implement the steps of the method as described above.

[0088] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored as one or more instructions or codes on or transmitted via a computer-readable medium. Other examples and implementations are within the scope and spirit of this application and the appended claims. For example, due to the nature of software, the functions described above may be implemented using software executed by a processor, hardware, firmware, hardwiring, or a combination of any of these. Furthermore, the functional units may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit.

[0089] In several embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. Among them, the above-mentioned device embodiments are only schematic, for example, the division of the units can be a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the displayed or discussed each other can be through some interface, indirect coupling or communication connection between units or modules, which can be electrical or other forms.

[0090] The units described as separate components can or can not be physically separated, and the components of the control device can or can not be physical units, i.e. can be located in one place or can be distributed to multiple units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.

[0091] The integrated unit, if implemented in the form of a software function unit and sold or used as an independent product, can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application essentially or the part that contributes to the prior art or the whole or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, including a plurality of instructions for making a computer device (which can be a personal computer, a server or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: a U disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a mobile hard disk, a magnetic disk or an optical disk, and various computer program instruction storage media.

[0092] The above is only an embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the scope of claims of the present application.

Claims

1. A method for assembling and detecting a voltage patroller, characterized in that: include: Obtain the standard vibration spectrum and excitation source information when the interface module of the test voltage patroller is normally connected to the single battery in the test stack; Inputting the excitation source information into the interface module of the current voltage patroller to obtain a current vibration spectrum when the interface module of the current voltage patroller is connected to a single cell of the current battery stack; Determining whether the connection between the interface module of the current voltage patroller and the single battery in the current battery stack is normal based on the standard vibration spectrum and the current vibration spectrum; The step of determining whether the connection between the interface module of the current voltage patroller and the single battery in the current battery stack is normal based on the standard vibration spectrum and the current vibration spectrum includes: Determine a first time difference corresponding to two identical amplitudes in the current vibration spectrum; determine a second time difference corresponding to two identical amplitudes in the same period as the first time difference in the standard vibration spectrum; and determine that the connection between the interface module of the current voltage patroller and the single battery in the current battery stack is normal if the difference between the first time difference and the second time difference is within a preset range; or, The determining, based on the standard vibration spectrum and the current vibration spectrum, whether the connection between the interface module of the current voltage patroller and the single battery in the current battery stack is normal includes: The slope of all two adjacent amplitudes within a preset period in the current vibration spectrum is determined as the first slope; the slope of all two adjacent amplitudes within the preset period in the standard vibration spectrum is determined as the second slope; based on the first slope and the second slope, it is determined whether the connection between the interface module of the current voltage patroller and the single battery in the current battery stack is normal.

2. The assembly detection method of the voltage patroller according to claim 1, characterized in that: The determining, based on the standard vibration spectrum and the current vibration spectrum, whether the connection between the interface module of the current voltage patroller and the single battery in the current battery stack is normal includes: When the difference between the maximum amplitude of the standard vibration spectrum and the maximum amplitude of the current vibration spectrum is within a preset range, it is determined that the connection between the interface module of the current voltage patroller and the single battery in the current battery stack is normal.

3. The assembly detection method of the voltage patroller according to claim 1, characterized in that: The determining, based on the standard vibration spectrum and the current vibration spectrum, whether the connection between the interface module of the current voltage patroller and the single battery in the current battery stack is normal includes: Obtaining a standard amplitude average value of the standard vibration spectrum and a current amplitude average value of the current vibration spectrum within the same time period; When the difference between the standard amplitude average value and the current amplitude average value is within a preset range, it is determined that the connection between the interface module of the current voltage patroller and the single battery in the current battery stack is normal.

4. The assembly detection method of the voltage patroller according to claim 1, characterized in that: The determining, based on the first slope and the second slope, whether the connection between the interface module of the current voltage patroller and the single battery in the current battery stack is normal includes: When the difference between the average value of the first slope and the average value of the second slope is within a preset range, it is determined that the connection between the interface module of the current voltage patroller and the single cells in the current battery stack is normal.

5. The assembly detection method of a voltage patroller according to any one of claims 1 to 4, characterized in that: The number of the interface modules of the test voltage patroller is the same as the number of the interface modules of the current voltage patroller. The number of the interface modules of the current voltage patroller is multiple and is less than the number of single cells of the current battery stack.

6. An assembly detection device for a voltage patroller, characterized in that: include: A standard vibration spectrum acquisition module is used to obtain the standard vibration spectrum and excitation source information when the interface module of the test voltage patroller is normally connected to the single cell of the test stack; a current vibration spectrum acquisition module, configured to input the excitation source information into the interface module of the current voltage patroller, and obtain the current vibration spectrum when the interface module of the current voltage patroller is connected to the single cell of the current battery stack; a vibration spectrum comparison module, configured to determine whether the connection between the interface module of the current voltage patroller and the single battery in the current battery stack is normal based on the standard vibration spectrum and the current vibration spectrum; The vibration spectrum comparison module is further configured to determine a first time difference corresponding to two identical amplitudes in the current vibration spectrum; determine a second time difference corresponding to two identical amplitudes within the same period as the first time difference in the standard vibration spectrum; and determine that, when the difference between the first time difference and the second time difference is within a preset range, that the connection between the interface module of the current voltage patroller and the single battery in the current battery stack is normal; Alternatively, the vibration spectrum comparison module is further used to determine the slope of all two adjacent amplitudes within a preset period in the current vibration spectrum as a first slope; determine the slope of all two adjacent amplitudes within the preset period in the standard vibration spectrum as a second slope; and judge whether the connection between the interface module of the current voltage patroller and the single battery in the current battery stack is normal based on the first slope and the second slope.

7. An assembly detection device for a voltage patroller, comprising a processor and a memory, characterized in that: The memory stores computer program instructions that can be executed by the processor, and when the processor executes the computer program instructions, the steps of the method according to any one of claims 1 to 5 are implemented.

8. An assembly detection system for a voltage patroller, characterized in that: include: Voltage patroller, battery stack, vibration collection point, vibration and noise analyzer and assembly detection equipment of the voltage patroller according to claim 7; wherein, The voltage patroller includes an interface module, which is used to connect to the single battery in the battery stack. Each interface module is provided with the vibration collection point, which is connected to the assembly detection equipment of the voltage patroller via the vibration and noise analyzer.

Images