Multi-stage cell synchronous sampling system and electronic equipment for capacity composition

Abstract

The present invention relates to the field of sampling technology, and discloses a multi-stage battery cell synchronous sampling system and electronic equipment for chemical component capacity. The system comprises a differential processing matching module and a sampling control module. The differential processing matching module comprises at least two first differential processing modules. When the multi-stage battery cell information of the determined multi-stage battery cell group does not meet the preset synchronous sampling condition, the differential processing matching module matches the second differential processing module in all the first differential processing modules according to the multi-stage battery cell information and the preset synchronous sampling condition. The second differential processing module is used to adjust the multi-stage battery cell information so that the multi-stage battery cell information meets the preset synchronous sampling condition. The sampling control module generates a differential processing control parameter according to the second differential processing module to control the second differential processing module and the sampling control module to perform matching synchronous sampling control operations on the multi-stage battery cell group. It can be seen that the implementation of the present invention can improve the sampling efficiency of the multi-stage battery cell.

Description

Technical Field

[0001] The present invention relates to the technical field of sampling of an automated production line of new energy power batteries, and in particular to a multi-stage battery cell synchronous sampling system and electronic equipment for capacity conversion. Background Art

[0002] During the battery cell production process, it is necessary to charge and discharge the battery cells and sample the actual voltage of the battery cells in order to evaluate the production quality of the battery cells.

[0003] In the prior art, battery cell sampling is limited by sampling equipment (such as ADC), especially for multi-stage battery cell sampling, and it is still necessary to sample each single battery cell separately. This sampling method is inefficient and affects the actual production efficiency. Moreover, if the sampling is not timely, it may also affect the subsequent circuit integration during the battery cell production process, posing certain production safety risks.

[0004] It can be seen that it is particularly important to propose a technical solution to improve the sampling efficiency of multi-stage batteries. Summary of the invention

[0005] The present invention provides a multi-stage battery cell synchronous sampling system and electronic equipment for capacity fractionation, which can improve the multi-stage battery cell sampling efficiency.

[0006] In order to solve the above technical problems, the first aspect of the present invention discloses a multi-stage battery cell synchronous sampling system for capacity conversion, the system comprising a differential processing matching module and a sampling control module, the differential processing matching module comprising at least two first differential processing modules, wherein:

[0007] The first end of the differential processing matching module is electrically connected to the first end of the sampling control module, and the second end of the sampling control module is used to electrically connect to the multi-stage battery cell group to be sampled;

[0008] A differential processing matching module, configured to match a second differential processing module among all the first differential processing modules according to the multi-level battery cell information and the preset synchronous sampling condition when the determined multi-level battery cell information of the multi-level battery cell group does not meet the preset synchronous sampling condition, wherein the second differential processing module is configured to adjust the multi-level battery cell information so that the multi-level battery cell information meets the preset synchronous sampling condition;

[0009] The sampling control module is used to generate a differential processing control parameter according to the second differential processing module, so as to control the second differential processing module and the sampling control module to perform matching synchronous sampling control operations on the multi-stage battery cell group.

[0010] As an optional implementation, in the first aspect of the present invention, the differential processing matching module further includes a first determination submodule, a judgment submodule and a first matching submodule, wherein:

[0011] A first end of the first determination submodule is electrically connected to a first end of the judgment submodule, a second end of the judgment submodule is electrically connected to a first end of the first matching submodule, a second end of the first matching submodule is electrically connected to a first end of the second differential processing module, and a second end of the second differential processing module is electrically connected to a first end of the sampling control module;

[0012] A first determination submodule, used to determine the multi-stage battery cell information of the multi-stage battery cell group;

[0013] A judgment submodule, used to judge whether the multi-level battery cell information meets the preset synchronous sampling condition, and the preset synchronous sampling condition is used to indicate that the multi-level battery cell information matches the preset sampling range information;

[0014] The first matching submodule is used to match a second differential processing module in all the first differential processing modules according to the multi-stage battery cell information and the preset synchronous sampling condition when the judging submodule judges that the multi-stage battery cell information does not meet the preset synchronous sampling condition.

[0015] As an optional implementation, in the first aspect of the present invention, the first matching submodule includes a first calculation submodule and a second matching submodule, wherein:

[0016] The first end of the first calculation submodule is electrically connected to the first end of the second matching submodule, the second end of the first calculation submodule is electrically connected to the second end of the judgment submodule, and the second end of the second matching submodule is electrically connected to the first end of the second differential processing module;

[0017] The first calculation submodule is used to calculate at least one differential sampling processing range matching the preset sampling range information according to the multi-stage battery cell information and the preset synchronous sampling condition;

[0018] The second matching submodule is used for matching a third differential processing module matching the differential sampling processing range among all the first differential processing modules for each differential sampling processing range;

[0019] The second matching submodule is also used to match the second differential processing module according to all the third differential processing modules and preset processing conditions, wherein the preset processing conditions are used to indicate that the comprehensive processing capability value of the third differential processing module is greater than or equal to a preset comprehensive processing capability threshold, and the comprehensive processing capability value is used to indicate the comprehensive differential processing capability of the third differential processing module.

[0020] As an optional implementation, in the first aspect of the present invention, the second matching submodule includes a third matching submodule, a first analysis submodule and a second calculation submodule, wherein:

[0021] The first end of the third matching submodule is electrically connected to the first end of the first calculation submodule, the second end of the third matching submodule is electrically connected to the first end of the first analysis submodule, the second end of the first analysis submodule is electrically connected to the first end of the second calculation submodule, the second end of the second calculation submodule is electrically connected to the third end of the third matching submodule, and the fourth end of the third matching submodule is electrically connected to the first end of the second differential processing module;

[0022] The third matching submodule is used for matching the third differential processing module matching the differential sampling processing range among all the first differential processing modules for each differential sampling processing range;

[0023] The first analysis submodule is used to analyze the differential processing resource utilization and the comprehensive processing efficiency of each of the third differential processing modules according to the multi-stage battery cell information;

[0024] The second calculation submodule is used to calculate the comprehensive processing capacity value of the third differential processing module according to the differential processing resource utilization and the comprehensive processing efficiency, and the differential processing resource utilization and the comprehensive processing efficiency both have corresponding preset priority values;

[0025] The third matching submodule is further used to match the second differential processing module that meets the preset processing condition among all the third differential processing modules according to all the comprehensive processing capability values.

[0026] As an optional implementation, in the first aspect of the present invention, the first analysis submodule includes a second determination submodule, a second analysis submodule and an acquisition submodule, wherein:

[0027] The first end of the second determination submodule is electrically connected to the second end of the third matching submodule, the second end of the second determination submodule is electrically connected to the first end of the second analysis submodule, the second end of the second analysis submodule is electrically connected to the first end of the acquisition submodule, and the third end of the second analysis submodule is electrically connected to the first end of the second calculation submodule;

[0028] The second determination submodule is used to determine, for each of the third differential processing modules, at least one differential processing submodule and a matching differential control submodule of the third differential processing module according to the multi-stage battery cell information and the differential sampling processing range of the third differential processing module;

[0029] The second analysis submodule is used to analyze the differential processing resource utilization of the third differential processing module according to all the differential processing submodules and all the differential control submodules;

[0030] The acquisition submodule is used to acquire the scheduling information of all the difference processing submodules and all the difference control submodules;

[0031] The second analysis submodule is further used to analyze the comprehensive processing efficiency of the third differential processing module based on the scheduling information, all the differential processing submodules and all the differential control submodules.

[0032] As an optional implementation, in the first aspect of the present invention, the scheduling information includes scheduling timeliness information, and the second analysis submodule includes a third analysis submodule and a fourth analysis submodule, wherein:

[0033] The first end of the third analysis submodule is electrically connected to the second end of the second determination submodule, the second end of the third analysis submodule is electrically connected to the first end of the acquisition submodule, the first end of the fourth analysis submodule is electrically connected to the first end of the acquisition submodule, and the second end of the fourth analysis submodule is electrically connected to the first end of the second calculation submodule;

[0034] The third analysis submodule is used to analyze the differential processing resource utilization of the third differential processing module according to all the differential processing submodules and all the differential control submodules;

[0035] The fourth analysis submodule is used to analyze the single-sampled cell quantity and the single-sampled cell aging information of the third differential processing module according to the multi-stage cell information, all the differential processing submodules and all the differential control submodules;

[0036] The fourth analysis submodule is further used to analyze the total aging information of the cell group samples of the third difference processing module according to the single sampled cell quantity and the single sampled cell aging information;

[0037] The fourth analysis submodule is further used to analyze the comprehensive processing efficiency of the third differential processing module according to the scheduling timeliness information and the total timeliness information of the cell group sampling.

[0038] As an optional implementation, in the first aspect of the present invention, the differential processing submodule is a differential operational amplifier, the common-mode input range of the differential operational amplifier matches the differential sampling processing range, and the differential control submodule is a first control switch.

[0039] As an optional implementation, in the first aspect of the present invention, the sampling control module includes a generation submodule, a sampling submodule and a sampling control submodule, the sampling submodule matches the preset sampling range information, and the sampling control submodule matches the second differential processing module, wherein:

[0040] The first end of the generating submodule, the first end of the sampling submodule and the first end of the sampling control submodule are electrically connected to the first end of the differential processing matching module, the second end of the generating submodule is electrically connected to the second end of the sampling submodule, the third end of the generating submodule is electrically connected to the second end of the sampling control submodule, and the third end of the sampling control submodule is used to electrically connect to the multi-stage battery cell group;

[0041] The generating submodule is used to generate a differential processing control strategy according to the multi-stage battery cell information, the sampling control submodule and the second differential processing module;

[0042] The generating submodule is further used to generate the differential processing control parameters according to the differential processing control strategy, so as to control the second differential processing module, the sampling submodule and the sampling control submodule to perform matching synchronous sampling control operations on the multi-stage battery cell group.

[0043] As an optional implementation, in the first aspect of the present invention, the sampling submodule is an ADC sampling device, and the sampling control submodule is a second control switch.

[0044] A second aspect of the present invention discloses an electronic device, which includes a main body, and further includes the multi-stage battery cell synchronous sampling system for capacity fractionation according to the first aspect of the present invention.

[0045] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0046] In an embodiment of the present invention, the multi-stage battery cell synchronous sampling system applied to capacity conversion includes a differential processing matching module and a sampling control module, wherein the differential processing matching module includes at least two first differential processing modules, wherein when the multi-stage battery cell information of the determined multi-stage battery cell group does not meet the preset synchronous sampling condition, the differential processing matching module matches the second differential processing module in all the first differential processing modules according to the multi-stage battery cell information and the preset synchronous sampling condition, and the second differential processing module is used to adjust the multi-stage battery cell information so that the multi-stage battery cell information meets the preset synchronous sampling condition; the sampling control module generates a differential processing control parameter according to the second differential processing module to control the second differential processing module and the sampling control module to perform matching synchronous sampling control operations on the multi-stage battery cell group. It can be seen that the implementation of the present invention can match the second differential processing module in all first differential processing modules according to the multi-level battery cell information and the preset synchronous sampling conditions when the differential processing matching module determines that the multi-level battery cell information of the multi-level battery cell group does not meet the preset synchronous sampling conditions. The second differential processing module is used to adjust the multi-level battery cell information so that the multi-level battery cell information meets the preset synchronous sampling conditions. The sampling control module generates differential processing control parameters according to the second differential processing module to control the second differential processing module and the sampling control module to perform matching synchronous sampling control operations on the multi-level battery cell group. In this way, compared with the prior art, the multi-level battery cell sampling efficiency and sampling safety can be improved and the sampling cost can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0048] Figure 1 It is a structural schematic diagram of a multi-stage battery cell synchronous sampling system for capacity fractionation disclosed in an embodiment of the present invention;

[0049] Figure 2 It is a structural schematic diagram of another multi-stage battery cell synchronous sampling system for capacity fractionation disclosed in an embodiment of the present invention;

[0050] Figure 3 It is a structural schematic diagram of another multi-stage battery cell synchronous sampling system for capacity fractionation disclosed in an embodiment of the present invention;

[0051] Figure 4 It is a structural schematic diagram of another multi-stage battery cell synchronous sampling system for capacity fractionation disclosed in an embodiment of the present invention. DETAILED DESCRIPTION

[0052] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of the present invention.

[0053] The terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish different objects rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, device, product or end including a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units inherent to these processes, methods, products or ends.

[0054] 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 invention. The appearance of the phrase in various places 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.

[0055] The present invention discloses a multi-stage battery cell synchronous sampling system and electronic device for capacity conversion. When the differential processing matching module determines that the multi-stage battery cell information of the multi-stage battery cell group does not meet the preset synchronous sampling condition, the second differential processing module is matched in all first differential processing modules according to the multi-stage battery cell information and the preset synchronous sampling condition. The second differential processing module is used to adjust the multi-stage battery cell information so that the multi-stage battery cell information meets the preset synchronous sampling condition. The sampling control module generates a differential processing control parameter according to the second differential processing module to control the second differential processing module and the sampling control module to perform matching synchronous sampling control operations on the multi-stage battery cell group. In this way, compared with the prior art, the multi-stage battery cell sampling efficiency and sampling safety can be improved and the sampling cost can be reduced. The following are detailed descriptions.

[0056] Embodiment 1

[0057] See also Figure 1 , Figure 1 The structure diagram of a multi-stage cell synchronous sampling system for capacity fractionation disclosed in an embodiment of the present invention is shown in FIG. Figure 1The multi-stage battery cell synchronous sampling system for chemical formation and capacity division described above can be applied to chemical formation / capacity division equipment in an automated production line, such as a chemical formation / capacity division integrated machine, and can also be applied to intelligent devices related to chemical formation / capacity division equipment, including but not limited to one or more of battery devices, sampling devices, cloud devices, edge computing devices, relay devices, base station devices, urban management devices, and intelligent networked devices, which are not limited in the embodiments of the present invention. Figure 1 As shown, the multi-stage battery cell synchronous sampling system applied to capacity conversion may include a differential processing matching module 10 and a sampling control module 20, wherein the differential processing matching module 10 includes at least two first differential processing modules 101, wherein:

[0058] The first end of the differential processing matching module 10 is electrically connected to the first end of the sampling control module 20, and the second end of the sampling control module 20 is used to electrically connect to the multi-stage battery cell group to be sampled;

[0059] The differential processing matching module 10 is used to match the second differential processing module 102 in all the first differential processing modules 101 according to the multi-level battery cell information and the preset synchronous sampling condition when the multi-level battery cell information of the determined multi-level battery cell group does not meet the preset synchronous sampling condition, and the second differential processing module 102 is used to adjust the multi-level battery cell information so that the multi-level battery cell information meets the preset synchronous sampling condition;

[0060] The sampling control module 20 is used to generate a differential processing control parameter according to the second differential processing module 102 to control the second differential processing module 102 and the sampling control module 20 to perform a matching synchronous sampling control operation on the multi-stage battery cell group.

[0061] In the embodiment of the present invention, optionally, different first differential processing modules correspond to different processing efficiencies, different resource consumptions, and different processing ranges.

[0062] It can be seen that the implementation of the embodiment of the present invention can match the second differential processing module in all first differential processing modules according to the multi-level battery cell information and the preset synchronous sampling condition when the differential processing matching module determines that the multi-level battery cell information of the multi-level battery cell group does not meet the preset synchronous sampling condition. The second differential processing module is used to adjust the multi-level battery cell information so that the multi-level battery cell information meets the preset synchronous sampling condition. The sampling control module generates a differential processing control parameter according to the second differential processing module to control the second differential processing module and the sampling control module to perform matching synchronous sampling control operations on the multi-level battery cell group. In this way, compared with the prior art, the multi-level battery cell sampling efficiency and sampling safety can be improved and the sampling cost can be reduced.

[0063] In the embodiment of the present invention, as an optional implementation mode, Figure 2As shown, the above-mentioned differential processing matching module 10 further includes a first determination submodule 103, a judgment submodule 104 and a first matching submodule 105, wherein:

[0064] A first end of the first determination submodule 103 is electrically connected to a first end of the judgment submodule 104, a second end of the judgment submodule 104 is electrically connected to a first end of the first matching submodule 105, a second end of the first matching submodule 105 is electrically connected to a first end of the second differential processing module 102, and a second end of the second differential processing module 102 is electrically connected to a first end of the sampling control module 20;

[0065] A first determination submodule 103 is used to determine multi-level battery cell information of a multi-level battery cell group;

[0066] A judgment submodule 104 is used to judge whether the multi-level battery cell information meets a preset synchronous sampling condition, where the preset synchronous sampling condition is used to indicate that the multi-level battery cell information matches the preset sampling range information;

[0067] The first matching submodule 105 is used to match the second differential processing module 102 in all the first differential processing modules 101 according to the multi-level battery cell information and the preset synchronous sampling condition when the judging submodule 104 judges that the multi-level battery cell information does not meet the preset synchronous sampling condition.

[0068] It can be seen that the implementation of this optional embodiment can determine the multi-level battery cell information of the multi-level battery cell group through the first determination submodule. When the judgment submodule determines that the multi-level battery cell information does not meet the preset synchronous sampling conditions, the first matching submodule matches the second differential processing module in all first differential processing modules according to the multi-level battery cell information and the preset synchronous sampling conditions, thereby improving the matching accuracy and matching feasibility of the second differential processing module, which is beneficial to improving the accuracy of adjusting the multi-level battery cell information so that the multi-level battery cell information meets the preset synchronous sampling conditions, and is beneficial to improving the sampling efficiency and sampling safety of the multi-level battery cells.

[0069] In this optional embodiment, as an optional implementation, Figure 2 As shown, the first matching submodule 105 includes a first calculation submodule 1051 and a second matching submodule 1052, wherein:

[0070] A first end of the first calculation submodule 1051 is electrically connected to a first end of the second matching submodule 1052, a second end of the first calculation submodule 1051 is electrically connected to a second end of the judgment submodule 104, and a second end of the second matching submodule 1052 is electrically connected to a first end of the second differential processing module 102;

[0071] A first calculation submodule 1051 is used to calculate at least one differential sampling processing range matching the preset sampling range information according to the multi-level battery cell information and the preset synchronous sampling condition;

[0072] The second matching submodule 1052 is used to match a third differential processing module matching the differential sampling processing range in all the first differential processing modules 101 for each differential sampling processing range;

[0073] The second matching submodule 1052 is also used to match the second differential processing module 102 according to all third differential processing modules and preset processing conditions. The preset processing conditions are used to indicate that the comprehensive processing capability value of the third differential processing module is greater than or equal to a preset comprehensive processing capability threshold, and the comprehensive processing capability value is used to indicate the comprehensive differential processing capability of the third differential processing module.

[0074] In this optional embodiment, the third difference processing module is an intermediate definition transition module in the process of matching the second difference processing module. Figure 2 This is no longer marked.

[0075] It can be seen that the implementation of this optional embodiment can calculate at least one differential sampling processing range that matches the preset sampling range information according to the multi-level battery cell information and the preset synchronous sampling condition through the first calculation submodule. For each differential sampling processing range, the second matching submodule matches the third differential processing module that matches the differential sampling processing range in all the first differential processing modules, and matches the second differential processing module according to all the third differential processing modules and the preset processing conditions. The preset processing condition is used to indicate that the comprehensive processing capacity value of the third differential processing module is greater than or equal to the preset comprehensive processing capacity threshold, and the comprehensive processing capacity value is used to indicate the differential processing comprehensive capacity of the third differential processing module. Therefore, on the basis that the third differential processing module can adjust the multi-level battery cell information so that the multi-level battery cell information meets the preset synchronous sampling condition, the second differential processing module with a comprehensive processing capacity value greater than or equal to the preset comprehensive processing capacity threshold is further screened out, and on the basis of improving the sampling efficiency and sampling safety of the multi-level battery cell, the sampling cost is further reduced and the utilization rate of the sampling resources is improved.

[0076] In this optional embodiment, as another optional implementation, as Figure 2 As shown, the second matching submodule 1052 includes a third matching submodule 10521, a first analysis submodule 10522 and a second calculation submodule 10523, wherein:

[0077] A first end of the third matching submodule 10521 is electrically connected to a first end of the first calculation submodule 1051, a second end of the third matching submodule 10521 is electrically connected to a first end of the first analysis submodule 10522, a second end of the first analysis submodule 10522 is electrically connected to a first end of the second calculation submodule 10523, a second end of the second calculation submodule 10523 is electrically connected to a third end of the third matching submodule 10521, and a fourth end of the third matching submodule 10521 is electrically connected to a first end of the second differential processing module 102;

[0078] The third matching submodule 10521 is used for matching a third differential processing module matching the differential sampling processing range in all the first differential processing modules 101 for each differential sampling processing range;

[0079] A first analysis submodule 10522 is used to analyze the differential processing resource utilization and comprehensive processing efficiency of each third differential processing module according to the multi-stage battery cell information;

[0080] The second calculation submodule 10523 is used to calculate the comprehensive processing capability value of the third differential processing module according to the differential processing resource utilization rate and the comprehensive processing efficiency, and the differential processing resource utilization rate and the comprehensive processing efficiency both have corresponding preset priority values;

[0081] The third matching submodule 10521 is further used to match the second differential processing module 102 that meets the preset processing conditions among all the third differential processing modules according to all the comprehensive processing capability values.

[0082] It can be seen that the implementation of this optional embodiment can match the third differential processing module that matches the differential sampling processing range in all the first differential processing modules through the third matching submodule for each differential sampling processing range. For each third differential processing module, the first analysis submodule analyzes the differential processing resource utilization and the comprehensive processing efficiency of the third differential processing module according to the multi-stage battery cell information. The second calculation submodule calculates the comprehensive processing capacity value of the third differential processing module according to the differential processing resource utilization and the comprehensive processing efficiency, thereby improving the calculation accuracy and calculation feasibility of the comprehensive processing capacity value of the third differential processing module. The differential processing resource utilization and the comprehensive processing efficiency both have corresponding preset priority values. The third matching submodule matches the second differential processing module that meets the preset processing conditions in all the third differential processing modules according to all the comprehensive processing capacity values, thereby further improving the matching accuracy and matching executability of the second differential processing module, and on the basis of improving the multi-stage battery cell sampling efficiency and sampling safety, further reducing the sampling cost and improving the utilization of sampling resources.

[0083] In an optional embodiment, if Figure 2 As shown, the first analysis submodule 10522 includes a second determination submodule 105221, a second analysis submodule 105222 and an acquisition submodule 105223, wherein:

[0084] A first end of the second determination submodule 105221 is electrically connected to a second end of the third matching submodule 10521, a second end of the second determination submodule 105221 is electrically connected to a first end of the second analysis submodule 105222, a second end of the second analysis submodule 105222 is electrically connected to a first end of the acquisition submodule 105223, and a third end of the second analysis submodule 105222 is electrically connected to a first end of the second calculation submodule 10523;

[0085] The second determination submodule 105221 is used to determine, for each third differential processing module, at least one differential processing submodule and a matching differential control submodule of the third differential processing module according to the multi-stage battery cell information and the differential sampling processing range of the third differential processing module;

[0086] The second analysis submodule 105222 is used to analyze the differential processing resource utilization of the third differential processing module according to all differential processing submodules and all differential control submodules;

[0087] An acquisition submodule 105223 is used to acquire the scheduling information of all differential processing submodules and all differential control submodules;

[0088] The second analysis submodule 105222 is further used to analyze the comprehensive processing efficiency of the third differential processing module according to the scheduling information, all differential processing submodules and all differential control submodules.

[0089] It can be seen that the implementation of this optional embodiment can determine, for each third differential processing module, at least one differential processing submodule and a matching differential control submodule of the third differential processing module according to the multi-level battery cell information and the differential sampling processing range of the third differential processing module through the second determination submodule, the second analysis submodule analyzes the differential processing resource utilization of the third differential processing module according to all differential processing submodules and all differential control submodules, thereby improving the analysis accuracy and analysis executability of the differential processing resource utilization of the third differential processing module, and the acquisition submodule acquires all differential processing submodules and all differential control submodules. The second analysis submodule analyzes the comprehensive processing efficiency of the third differential processing module according to the scheduling information, all differential processing submodules and all differential control submodules, thereby improving the accuracy and executability of the comprehensive processing efficiency analysis of the third differential processing module, which is beneficial to further improve the calculation accuracy and feasibility of the comprehensive processing capability value of the third differential processing module, thereby helping to further improve the matching accuracy and matching executability of the second differential processing module, and on the basis of improving the sampling efficiency and sampling safety of multi-stage battery cells, further reducing the sampling cost and improving the utilization rate of sampling resources.

[0090] In this optional embodiment, as an optional implementation, the above-mentioned scheduling information includes scheduling timeliness information, and the second analysis submodule 105222 includes a third analysis submodule 1052221 and a fourth analysis submodule 1052222, wherein:

[0091] A first end of the third analysis submodule 1052221 is electrically connected to a second end of the second determination submodule 105221, a second end of the third analysis submodule 1052221 is electrically connected to a first end of the acquisition submodule 105223, a first end of the fourth analysis submodule 1052222 is electrically connected to a first end of the acquisition submodule 105223, and a second end of the fourth analysis submodule 1052222 is electrically connected to a first end of the second calculation submodule 10523;

[0092] The third analysis submodule 1052221 is used to analyze the differential processing resource utilization of the third differential processing module according to all differential processing submodules and all differential control submodules;

[0093] The fourth analysis submodule 1052222 is used to analyze the single-sampled cell quantity and the single-sampled cell aging information of the third differential processing module according to the multi-level cell information, all differential processing submodules and all differential control submodules;

[0094] The fourth analysis submodule 1052222 is further used to analyze the total aging information of the cell group sampling of the third difference processing module according to the single sampled cell quantity and the single sampled cell aging information;

[0095] The fourth analysis submodule 1052222 is further used to analyze the comprehensive processing efficiency of the third differential processing module according to the scheduling timeliness information and the total timeliness information of the cell group sampling.

[0096] It can be seen that the implementation of this optional embodiment can analyze the differential processing resource utilization rate of the third differential processing module according to all differential processing submodules and all differential control submodules through the third analysis submodule, analyze the single sampling cell quantity and single sampling cell aging information of the third differential processing module according to the multi-level cell information, all differential processing submodules and all differential control submodules, analyze the total aging information of the cell group sampling of the third differential processing module according to the single sampling cell quantity and the single sampling cell aging information, and analyze the total aging information of the cell group sampling of the third differential processing module according to the fourth analysis submodule according to the scheduling time. The comprehensive processing efficiency of the third differential processing module is analyzed by combining the efficiency information and the total time efficiency information of the battery group sampling, which can further improve the accuracy of the comprehensive processing efficiency analysis and the feasibility of the analysis of the third differential processing module, and is beneficial to combining the analyzed differential processing resource utilization of the third differential processing module, improving the calculation accuracy and feasibility of the comprehensive processing capability value, and further improving the matching accuracy and matching feasibility of the second differential processing module, which is beneficial to further reduce the sampling cost and improve the utilization of sampling resources on the basis of improving the sampling efficiency and sampling safety of multi-stage battery cells.

[0097] In an optional embodiment, if Figure 3 As shown, the above-mentioned differential processing submodule is a differential operational amplifier, the common-mode input range of the differential operational amplifier matches the differential sampling processing range, and the differential control submodule is a first control switch.

[0098] It can be seen that implementing the above optional embodiments can provide a specific execution module, thereby improving the executability of synchronous sampling of multi-stage battery cells and the efficiency of synchronous sampling of multi-stage battery cells. On this basis, it is also beneficial to further reduce the sampling cost.

[0099] In another optional embodiment, Figure 3 As shown, the above-mentioned sampling control module 20 includes a generation submodule 201, a sampling submodule 202 and a sampling control submodule 203, the sampling submodule 202 matches the preset sampling range information, and the sampling control submodule 203 matches the second difference processing module 102, wherein:

[0100] The first end of the generating submodule 201, the first end of the sampling submodule 202 and the first end of the sampling control submodule 203 are electrically connected to the first end of the differential processing matching module 10, the second end of the generating submodule 201 is electrically connected to the second end of the sampling submodule 202, the third end of the generating submodule 201 is electrically connected to the second end of the sampling control submodule 203, and the third end of the sampling control submodule 203 is used to electrically connect to the multi-stage battery cell group;

[0101] A generating submodule 201, for generating a differential processing control strategy according to the multi-stage battery cell information, the sampling control submodule 203 and the second differential processing module 102;

[0102] The generating submodule 201 is further used to generate the differential processing control parameters according to the differential processing control strategy, so as to control the second differential processing module 102, the sampling submodule 202 and the sampling control submodule 203 to perform matching synchronous sampling control operations on the multi-stage battery cell group.

[0103] In yet another optional embodiment, Figure 4 As shown, the sampling submodule 202 may be an ADC sampling device, and the sampling control submodule 203 may be a second control switch.

[0104] It can be seen that the implementation of this optional embodiment can generate a differential processing control strategy through the generation submodule according to the multi-stage battery cell information, the sampling control submodule and the second differential processing module, and then generate differential processing control parameters according to the differential processing control strategy to control the second differential processing module, the sampling submodule and the sampling control submodule to perform matching synchronous sampling control operations on the multi-stage battery cell group, thereby further improving the intelligence of the sampling control and the accuracy of the joint control, which is beneficial to improving the synchronous sampling control efficiency and control accuracy of the multi-stage battery cells.

[0105] In the embodiment of the present invention, as an optional implementation mode, Figure 4 As shown, Figure 4 This is a schematic diagram of the structure of another multi-stage cell synchronous sampling system for fractional capacity disclosed in an embodiment of the present invention. For the electronic components included in the system, the connection relationship between the electronic components included therein, and the connection relationship between the electronic components included therein and other circuit structures, please refer to Figure 4 ,exist Figure 4 In the embodiment of the present invention, all differential operational amplifiers marked with differential processing together constitute the second differential processing module described in the embodiment of the present invention. Before this, the matching process of the second differential processing module has been completed. For the other modules included in the differential processing matching module 10 in the embodiment of the present invention, they are implemented with an integrated MCU in this optional embodiment. For the sampling control module 20, as shown in FIG. Figure 4 As shown, Figure 4The ADC is a highly integrated ADC, which includes a generation submodule 201 and a sampling submodule 202 as defined in the embodiment of the present invention, and a sampling control submodule 203. Figure 4 All control switches in the system, specifically, the control switches include S-GND and S. Figure 4 C1-C6 in the figure are the multi-stage battery cell groups to be sampled.

[0106] In an optional embodiment, if Figure 4 As shown, if the differential sampling processing range (or common mode input range) of the second differential processing module is plus or minus 18, by first connecting S-GND and then connecting all S switches, the voltage range of each battery cell is 0~5V. Relative to the GND point, the positive pole of battery cell C1 can reach +15V, and the negative pole of battery cell C6 can reach -15V. After differential processing, the voltage signal of each battery cell becomes a 0~5V signal relative to GND, which is equivalent to moving the voltage to the 0~5V range. Then input the ADC for quantization. The ADC uses synchronous sampling ADC to quantize the 6-channel input voltage at one time. After the ADC quantization is completed, it can be switched to the other 6 battery cell inputs through the switch for polling sampling. Assuming that a string of series-connected battery cells has 24 battery cells, sampling can be completed by switching only 4 times. If the single sampling time of the ADC is 1 ms, the voltage sampling of the 24 cascaded battery cells needs 4 samples to be completed, and the voltage sampling of the entire string of battery cells can be completed in 4 ms. Correspondingly, if the efficiency of synchronous sampling of multi-stage battery cells is to be further improved, the above purpose can be achieved by matching the second differential processing module under other ranges in the embodiment of the present invention.

[0107] Further optionally, if the differential sampling processing range (or common mode input range) of the second differential processing module is plus or minus 28, a multi-level battery cell group with 10 single-cell voltages of 0-5V can be sampled simultaneously.

[0108] Embodiment 2

[0109] An embodiment of the present invention discloses an electronic device, which includes a main body and a multi-stage battery cell synchronous sampling system for capacity fractionation as described in the first embodiment of the present invention.

[0110] The system embodiments described above are only illustrative, wherein the modules described by the separated components may or may not be physically separated, and the components displayed as modules may or may not be physical modules, i.e., they may be located in one place, or they may be distributed on multiple network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Those of ordinary skill in the art may understand and implement it without paying creative labor.

[0111] Through the specific description of the above embodiments, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on such an understanding, the above technical solution can be essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer storage medium, and the storage medium includes a read-only memory (ROM), a random access memory (RAM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), a one-time programmable read-only memory (OTPROM), an electronically erasable programmable read-only memory (EEPROM), a compact disc (CD-ROM) or other optical disc storage, magnetic disk storage, magnetic tape storage, or any other computer-readable medium that can be used to carry or store data.

[0112] Finally, it should be noted that the multi-stage battery cell synchronous sampling system and electronic device for capacity fractionation disclosed in the embodiments of the present invention are only preferred embodiments of the present invention, which are only used to illustrate the technical solution of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, it should be understood by those skilled in the art that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features therein can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-stage cell synchronous sampling system for capacity fractionation, characterized in that: The system comprises a differential processing matching module and a sampling control module, wherein the differential processing matching module comprises at least two first differential processing modules, wherein: The first end of the differential processing matching module is electrically connected to the first end of the sampling control module, and the second end of the sampling control module is used to electrically connect to the multi-stage battery cell group to be sampled; A differential processing matching module, configured to match a second differential processing module among all the first differential processing modules according to the multi-level battery cell information and the preset synchronous sampling condition when the determined multi-level battery cell information of the multi-level battery cell group does not meet the preset synchronous sampling condition, wherein the second differential processing module is configured to adjust the multi-level battery cell information so that the multi-level battery cell information meets the preset synchronous sampling condition; The sampling control module is used to generate a differential processing control parameter according to the second differential processing module, so as to control the second differential processing module and the sampling control module to perform matching synchronous sampling control operations on the multi-stage battery cell group.

2. The multi-stage battery cell synchronous sampling system for capacity fractionation according to claim 1, characterized in that: The differential processing matching module further includes a first determination submodule, a judgment submodule and a first matching submodule, wherein: A first end of the first determination submodule is electrically connected to a first end of the judgment submodule, a second end of the judgment submodule is electrically connected to a first end of the first matching submodule, a second end of the first matching submodule is electrically connected to a first end of the second differential processing module, and a second end of the second differential processing module is electrically connected to a first end of the sampling control module; A first determination submodule, used to determine the multi-stage battery cell information of the multi-stage battery cell group; A judgment submodule, used to judge whether the multi-level battery cell information meets the preset synchronous sampling condition, and the preset synchronous sampling condition is used to indicate that the multi-level battery cell information matches the preset sampling range information; The first matching submodule is used to match a second differential processing module in all the first differential processing modules according to the multi-stage battery cell information and the preset synchronous sampling condition when the judging submodule judges that the multi-stage battery cell information does not meet the preset synchronous sampling condition.

3. The multi-stage battery cell synchronous sampling system for capacity fractionation according to claim 2, characterized in that: The first matching submodule includes a first calculation submodule and a second matching submodule, wherein: The first end of the first calculation submodule is electrically connected to the first end of the second matching submodule, the second end of the first calculation submodule is electrically connected to the second end of the judgment submodule, and the second end of the second matching submodule is electrically connected to the first end of the second differential processing module; The first calculation submodule is used to calculate at least one differential sampling processing range matching the preset sampling range information according to the multi-stage battery cell information and the preset synchronous sampling condition; The second matching submodule is used for matching a third differential processing module matching the differential sampling processing range among all the first differential processing modules for each differential sampling processing range; The second matching submodule is also used to match the second differential processing module according to all the third differential processing modules and preset processing conditions, wherein the preset processing conditions are used to indicate that the comprehensive processing capability value of the third differential processing module is greater than or equal to a preset comprehensive processing capability threshold, and the comprehensive processing capability value is used to indicate the comprehensive differential processing capability of the third differential processing module.

4. The multi-stage battery cell synchronous sampling system for capacity fractionation according to claim 3 is characterized in that: The second matching submodule includes a third matching submodule, a first analysis submodule and a second calculation submodule, wherein: The first end of the third matching submodule is electrically connected to the first end of the first calculation submodule, the second end of the third matching submodule is electrically connected to the first end of the first analysis submodule, the second end of the first analysis submodule is electrically connected to the first end of the second calculation submodule, the second end of the second calculation submodule is electrically connected to the third end of the third matching submodule, and the fourth end of the third matching submodule is electrically connected to the first end of the second differential processing module; The third matching submodule is used for matching the third differential processing module matching the differential sampling processing range among all the first differential processing modules for each differential sampling processing range; The first analysis submodule is used to analyze the differential processing resource utilization and the comprehensive processing efficiency of each of the third differential processing modules according to the multi-stage battery cell information; The second calculation submodule is used to calculate the comprehensive processing capacity value of the third differential processing module according to the differential processing resource utilization and the comprehensive processing efficiency, and the differential processing resource utilization and the comprehensive processing efficiency both have corresponding preset priority values; The third matching submodule is further used to match the second differential processing module that meets the preset processing condition among all the third differential processing modules according to all the comprehensive processing capability values.

5. The multi-stage battery cell synchronous sampling system for capacity fractionation according to claim 4, characterized in that: The first analysis submodule includes a second determination submodule, a second analysis submodule and an acquisition submodule, wherein: The first end of the second determination submodule is electrically connected to the second end of the third matching submodule, the second end of the second determination submodule is electrically connected to the first end of the second analysis submodule, the second end of the second analysis submodule is electrically connected to the first end of the acquisition submodule, and the third end of the second analysis submodule is electrically connected to the first end of the second calculation submodule; The second determination submodule is used to determine, for each of the third differential processing modules, at least one differential processing submodule and a matching differential control submodule of the third differential processing module according to the multi-stage battery cell information and the differential sampling processing range of the third differential processing module; The second analysis submodule is used to analyze the differential processing resource utilization of the third differential processing module according to all the differential processing submodules and all the differential control submodules; The acquisition submodule is used to acquire the scheduling information of all the difference processing submodules and all the difference control submodules; The second analysis submodule is further used to analyze the comprehensive processing efficiency of the third differential processing module based on the scheduling information, all the differential processing submodules and all the differential control submodules.

6. The multi-stage battery cell synchronous sampling system for capacity fractionation according to claim 5, characterized in that: The scheduling information includes scheduling timeliness information, and the second analysis submodule includes a third analysis submodule and a fourth analysis submodule, wherein: The first end of the third analysis submodule is electrically connected to the second end of the second determination submodule, the second end of the third analysis submodule is electrically connected to the first end of the acquisition submodule, the first end of the fourth analysis submodule is electrically connected to the first end of the acquisition submodule, and the second end of the fourth analysis submodule is electrically connected to the first end of the second calculation submodule; The third analysis submodule is used to analyze the differential processing resource utilization of the third differential processing module according to all the differential processing submodules and all the differential control submodules; The fourth analysis submodule is used to analyze the single-sampled cell quantity and the single-sampled cell aging information of the third differential processing module according to the multi-stage cell information, all the differential processing submodules and all the differential control submodules; The fourth analysis submodule is further used to analyze the total aging information of the cell group sampling of the third difference processing module according to the single sampled cell quantity and the single sampled cell aging information; The fourth analysis submodule is further used to analyze the comprehensive processing efficiency of the third differential processing module according to the scheduling timeliness information and the total timeliness information of the cell group sampling.

7. The multi-stage battery cell synchronous sampling system for capacity fractionation according to claim 6, characterized in that: The differential processing submodule is a differential operational amplifier, the common mode input range of the differential operational amplifier matches the differential sampling processing range, and the differential control submodule is a first control switch.

8. The multi-stage battery cell synchronous sampling system for capacity fractionation according to any one of claims 1 to 7, characterized in that: The sampling control module includes a generation submodule, a sampling submodule and a sampling control submodule, the sampling submodule matches the preset sampling range information, and the sampling control submodule matches the second differential processing module, wherein: The first end of the generating submodule, the first end of the sampling submodule and the first end of the sampling control submodule are electrically connected to the first end of the differential processing matching module, the second end of the generating submodule is electrically connected to the second end of the sampling submodule, the third end of the generating submodule is electrically connected to the second end of the sampling control submodule, and the third end of the sampling control submodule is used to electrically connect to the multi-stage battery cell group; The generating submodule is used to generate a differential processing control strategy according to the multi-stage battery cell information, the sampling control submodule and the second differential processing module; The generating submodule is further used to generate the differential processing control parameters according to the differential processing control strategy, so as to control the second differential processing module, the sampling submodule and the sampling control submodule to perform matching synchronous sampling control operations on the multi-stage battery cell group.

9. The multi-stage battery cell synchronous sampling system for capacity fractionation according to claim 8, characterized in that: The sampling submodule is an ADC sampling device, and the sampling control submodule is a second control switch.

10. An electronic device, comprising a main body, characterized in that: The electronic device further comprises a multi-stage battery cell synchronous sampling system for capacity fractionation as described in any one of claims 1 to 9.

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