Battery capacity test method and device, electronic equipment and storage medium

Abstract

This application provides a method, apparatus, electronic device, and storage medium for testing the capacity of a storage battery. The method includes: receiving discharge start information and periodically recording the discharge load current and individual battery cell voltages; the discharge start information is the start of battery discharge when the power supply system fails; calculating the discharged capacity based on the discharge load current and individual battery cell voltages, and plotting a time-capacity discharge curve and a voltage-capacity discharge curve; comparing the time-capacity discharge curve and the voltage-capacity discharge curve with a standard discharge curve to evaluate the remaining battery capacity; and generating first capacity evaluation information based on the remaining battery capacity, the first capacity information including the battery's remaining runtime. This method reduces the workload of the capacity testing process and can also provide timely and effective data support for emergency response and dispatch.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of communication, and in particular to a storage battery capacity test method and device, an electronic device and a storage medium. BACKGROUND

[0002] The remaining capacity of a storage battery is an important indicator of battery life. According to the power maintenance regulations, the storage battery needs to be periodically discharged for capacity test, and if the capacity is less than 80% of the rated capacity, the storage battery life is terminated. In addition, the battery capacity can also be used to estimate the discharge duration of the battery, and to provide key data support for emergency disposal scheduling of power supply system failures.

[0003] The current capacity test method for storage batteries in the communication industry mainly involves disconnecting the storage battery from the power supply system, connecting a dummy load, and discharging the storage battery at a specific discharge rate. During the discharge period, the terminal voltage and other data of the storage battery are measured. The discharge is stopped when the specified discharge time or cut-off voltage is reached. The actual capacity discharged by the storage battery can be calculated according to the test data, and the remaining capacity of the storage battery can be obtained by capacity conversion.

[0004] The test method of the prior art can accurately calculate the remaining capacity of the storage battery, but the test process is labor-intensive, wastes energy, and the remaining capacity of the storage battery obtained by periodic discharge test cannot provide data support for emergency disposal scheduling at each power supply system failure. SUMMARY

[0005] The present application provides a storage battery capacity test method, device, electronic device and storage medium to solve the problem of large workload in the capacity test process of the prior art and the inability of the test results to provide data support for emergency disposal scheduling in a timely and effective manner.

[0006] In a first aspect, the present application provides a storage battery capacity test method, comprising:

[0007] receiving discharge start information and periodically recording discharge load current and battery cell voltage, the discharge start information being the discharge start information of the storage battery when the power supply system fails;

[0008] calculating the discharged capacity and drawing a time-capacity discharge curve and a voltage-capacity discharge curve according to the discharge load current and the battery cell voltage;

[0009] comparing the time-capacity discharge curve and the voltage-capacity discharge curve with a standard discharge curve to evaluate the remaining capacity of the battery;

[0010] generating first capacity evaluation information according to the remaining capacity of the battery, the first capacity information including the battery endurance duration.

[0011] In some examples, before receiving the discharge start information, the method further comprises:

[0012] obtaining historical discharge information and corresponding discharge load, the historical discharge information including discharge trigger alarm information and discharge end alarm information;

[0013] determining a discharge start time according to the discharge trigger alarm information;

[0014] determining a discharge end time according to the discharge end alarm information;

[0015] determining a discharge duration corresponding to the discharge load according to the discharge start time and the discharge end time, and generating second capacity evaluation information;

[0016] after receiving the discharge start information, further comprising:

[0017] generating first risk prompt information according to the second capacity evaluation information.

[0018] in some examples, after generating the second capacity evaluation information, further comprising:

[0019] evaluating the battery performance according to the first capacity evaluation information and the second capacity evaluation information, and generating second risk prompt information.

[0020] in some examples, determining the discharge start time according to the discharge trigger alarm information, comprises:

[0021] sequentially querying the discharge trigger alarm information according to a first priority, wherein different first priorities correspond to different discharge trigger reasons;

[0022] if multiple discharge trigger alarm information of multiple first priorities is queried, determining the occurrence time in the discharge trigger alarm information with the highest first priority as the discharge start time.

[0023] in some examples, determining the discharge end time according to the discharge end alarm information, comprises:

[0024] sequentially querying the discharge end alarm information according to a second priority, wherein different second priorities correspond to different discharge end reasons;

[0025] if multiple discharge end alarm information of multiple second priorities is queried, determining the occurrence time in the discharge end alarm information with the highest second priority as the discharge end time.

[0026] in some examples, after obtaining the historical discharge information, further comprising:

[0027] determining power supply system configuration data of the corresponding machine room according to the historical discharge information, the configuration data including battery manufacturer and model, and the historical discharge information further including historical discharge rate and historical environment temperature;

[0028] map the power system configuration data with historical discharge information;

[0029] draw and fit a temperature-discharge rate curve for the same manufacturer and same model battery.

[0030] In some examples, after receiving the discharge start information, further comprising:

[0031] record the ambient temperature during the discharge;

[0032] calculate the discharge rate according to the discharge load current;

[0033] after drawing and fitting a temperature-discharge rate curve for the same manufacturer and same model battery, further comprising:

[0034] evaluate the remaining capacity of the battery according to the ambient temperature, the discharge rate, and the temperature-discharge rate curve.

[0035] In a second aspect, the present application provides a battery capacity testing device, comprising:

[0036] a receiving module configured to receive discharge start information and periodically record a discharge load current and a battery cell voltage, the discharge start information being battery discharge start information when a power supply system fails;

[0037] a processing module configured to calculate a discharged capacity and draw a time-capacity discharge curve and a voltage-capacity discharge curve according to the discharge load current and the battery cell voltage;

[0038] an evaluation module configured to compare the time-capacity discharge curve and the voltage-capacity discharge curve with a standard discharge curve, and evaluate the remaining capacity of the battery;

[0039] the evaluation module is further configured to generate first capacity evaluation information according to the remaining capacity of the battery, the first capacity information including a battery endurance time.

[0040] In a third aspect, the present application provides an electronic device, comprising a memory and a processor;

[0041] the memory is configured to store a computer program, and the processor is configured to execute the computer program stored in the memory to implement the battery capacity testing method in the first aspect and any one of the examples of the first aspect.

[0042] In a fourth aspect, the present application provides a computer readable storage medium, the computer readable storage medium storing a computer program, the computer program being executed by a processor to implement the battery capacity testing method in the first aspect and any one of the examples of the first aspect.

[0043] The battery capacity test method, device, electronic equipment and storage medium provided by the application receive discharge start information and periodically record discharge load current and battery cell voltage when the power supply system failure is powered by the battery; calculate the discharged capacity according to the discharge load current and the battery cell voltage, draw a time-capacity discharge curve and a voltage-capacity discharge curve, and compare them with the standard discharge curve to evaluate the remaining capacity of the battery, generate first capacity evaluation information, and the first capacity information includes the battery endurance time. Compared with the prior art, the method of the application simplifies the capacity test process, and the test result can timely and effectively provide data support for emergency disposal scheduling. BRIEF DESCRIPTION OF DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0045] Figure 1 A flowchart of a battery capacity test method provided by an embodiment of the application;

[0046] Figure 2 A flowchart of another battery capacity test method provided by an embodiment of the application;

[0047] Figure 3 A structural schematic diagram of a battery capacity test device provided by an embodiment of the application;

[0048] Figure 4 A hardware structural schematic diagram of an electronic equipment provided by an embodiment of the application. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solutions and advantages of the application clearer, the technical solutions in the application will be described clearly and completely below in combination with the drawings in the application. Obviously, the described embodiments are some embodiments of the application, not all embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the application.

[0050] The terms "first", "second", etc. in the specification and claims of the application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances. For example, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information without departing from the scope of the present document.

[0051] As a backup power supply, the battery is the main component of uninterrupted power supply in the communication power supply industry and is widely used in the communication industry. The battery generally adopts parallel floating charging mode, that is, the battery bus is connected in parallel with the power supply system, and the power supply system supplements the charging of the battery. When the power supply system in the machine room and the power supply power device fail, the battery supplies power. During the discharging process of the battery, the terminal voltage gradually decreases, and when the terminal voltage decreases to the cut-off voltage, the power supply system cuts off the discharging process of the battery, the equipment in the station is powered off and disconnected from the network, causing the station to be disconnected. Therefore, the remaining capacity of the battery directly affects the discharging time. The remaining capacity of the battery is related to the machine room environment, charging and discharging management, load rate, discharging frequency and discharging time of each time. The battery capacity of the same manufacturer and the same type and specification of the battery under different use environments and discharging conditions is quite different. Evaluating the battery capacity, mastering the endurance time under the actual load condition and evaluating the end time of the battery life have always been the focus and difficulty of battery application management and operation and maintenance work.

[0052] At present, the capacity test of the battery in the communication industry is to disconnect the battery from the power supply system, connect a dummy load, and make the battery discharge at a rate of 10 hours or 3 hours or 1 hour. During the discharging period, the terminal voltage and other data of the battery are measured. When the discharging time reaches the specified time or the terminal voltage decreases to the cut-off voltage, the discharging is stopped. According to the test data, the actual capacity of the battery discharged can be calculated, and the remaining capacity of the battery can be obtained by capacity conversion.

[0053] However, the discharging load and discharging time in the above test method are quite different from the actual discharging process of the battery when the power supply system fails, and the measured remaining capacity of the battery cannot provide effective data support for each power supply system failure. The station disconnection rate is still too high.

[0054] In view of the above problems, the application provides a battery capacity test method, device, electronic equipment and storage medium. The method of the application is for the discharging process of the battery after the power supply system fails, receives the discharging start information and periodically records the discharging data, which is used to evaluate the remaining capacity of the battery and generate first capacity evaluation information. The first capacity information includes the battery endurance time. The method can effectively utilize the discharging data of the battery under the real working condition to provide risk prompt and data scheduling support for the subsequent discharging of the battery when the power supply system fails.

[0055] The technical solutions of the application will be described in detail in the following specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes can not be described in detail in some embodiments.

[0056] In this application, an electronic device is used as the execution subject to perform the battery capacity testing method of the following embodiments. Specifically, the execution subject can be the hardware device of the electronic device, or the software application implementing the following embodiments in the electronic device, or a computer-readable storage medium installed with the software application implementing the following embodiments, or the code implementing the software application.

[0057] Figure 1 A flowchart of a battery capacity testing method provided in one embodiment of this application is shown.

[0058] like Figure 1 As shown, with an electronic device as the execution subject, the method in this embodiment may include the following steps:

[0059] S101. Receive discharge start information and periodically record discharge load current and battery cell voltage. The discharge start information is the battery discharge start information when the power supply system fails.

[0060] In this embodiment, receiving the discharge start information refers to the discharge start information triggered when a power outage occurs due to a power supply system fault and the battery supplies power. The recording period can be set according to the actual situation of the discharge process, for example, recording once every 5 minutes until the discharge ends. The end of the discharge can be due to the power supply system fault being resolved and normal operation resuming, or the battery terminal voltage falling below the discharge cutoff voltage, causing a station outage.

[0061] S102. Calculate the discharged capacity based on the discharge load current and the battery cell voltage, and plot the time-capacity discharge curve and the voltage-capacity discharge curve.

[0062] In this embodiment, the discharged capacity can be accurately calculated using a PID algorithm. For example, an Artificial Intelligence (AI) clustering algorithm can be used to divide the discharge duration into multiple time periods, with each cycle lasting for one time period. The PID algorithm is then used to calculate the discharge rate and discharged capacity for each time period, and the total discharged capacity is calculated using a summation formula.

[0063] Based on the recorded voltage for each time period and the calculated capacity for each time period, plot the time-capacity discharge curve and the voltage-capacity discharge curve.

[0064] S103. Compare the time-capacity discharge curve and voltage-capacity discharge curve with the standard discharge curve to evaluate the remaining battery capacity.

[0065] In this embodiment, the standard discharge curve can be a discharge curve provided by the battery manufacturer, or a discharge curve obtained from the discharge test when the battery is put into service.

[0066] The remaining capacity can be assessed by comparing the time-capacity discharge curve, voltage-capacity discharge curve and standard discharge curve based on the deviation of the two sets of curves and the angle between the tangents. There are many records of specific comparison methods, which will not be repeated in this application.

[0067] S104. Generate first capacity assessment information based on the remaining battery capacity. The first capacity information includes the battery runtime.

[0068] In this embodiment, battery life refers to the battery life under the current discharge load, and the first capacity assessment information may also include the estimated possible downtime.

[0069] The battery capacity testing method provided in this application periodically records the discharge load current and individual cell voltage of the battery when it begins to discharge after a power supply system failure. Based on the recorded data, the discharged capacity is accurately calculated and time-capacity discharge curves and voltage-capacity discharge curves are plotted. These curves are then compared with standard discharge curves to assess the remaining battery capacity and generate first capacity assessment information. This method achieves accurate assessment of the remaining battery capacity, providing data support for emergency dispatch and handling during power supply system failures and reducing the downtime rate.

[0070] Figure 2 A flowchart illustrating another battery capacity testing method provided in an embodiment of this application is shown. Figure 2 As shown, with an electronic device as the execution subject, the method in this embodiment may include the following steps:

[0071] S201. Obtain historical discharge information and the corresponding discharge load. The historical discharge information includes discharge trigger alarm information and discharge end alarm information.

[0072] In this embodiment, the historical discharge information refers to the battery discharge information during historical power supply system failures.

[0073] S202. Determine the discharge start time based on the discharge trigger alarm information.

[0074] In this embodiment, an alarm message will be issued when the power supply system fails, triggering the battery to start discharging. This alarm message is the discharge-triggered alarm message.

[0075] In some examples, step 202 includes: querying discharge-triggered alarm information sequentially according to the first priority, wherein different first priorities correspond to different discharge-triggered reasons; if multiple discharge-triggered alarm information with multiple first priorities is found, the occurrence time in the discharge-triggered alarm information with the highest first priority is determined as the discharge start time.

[0076] For example, first query the level 1-3 alarms transmitted through the environmental monitoring platform interface: low-voltage distribution AC input power outage alarm, smart meter AC input power outage alarm, and switching power supply AC input power outage alarm. If the query result is empty, then query the level 4-5 alarms transmitted through the wireless platform interface: DC power supply abnormality alarm and input voltage abnormality alarm. If the query result is still empty, then query the level 6-8 alarms transmitted through the environmental monitoring platform interface, until all alarm causes have been queried. When there are multiple query results, retain the alarm occurrence time corresponding to the highest priority, denoted as tcn. For example, if both level 4 and level 5 alarm information are queried simultaneously, record the occurrence time of the level 4 alarm information as tc4. The discharge triggering causes and their corresponding first priorities are shown in Table 1.

[0077] Table 1. Reasons for Discharge Triggered Alarms and Corresponding First Priority

[0078] Network management identification Alarm cause Value First priority Dynamic ring Low-voltage power distribution AC input power failure alarm Occurrence time 1 Dynamic ring Smart meter AC input power failure alarm Occurrence time 2 Dynamic ring Switching power supply AC input power failure alarm Occurrence time 3 Wireless DC power supply abnormal alarm Occurrence time 4 Wireless Input voltage abnormal alarm Occurrence time 5 Dynamic ring Switching power supply output DC voltage too low alarm Occurrence time 6 Dynamic ring Switching power supply DC voltage out-of-limit alarm Occurrence time 7 Dynamic ring Battery pack total voltage low alarm Occurrence time 8

[0079] S203. Determine the discharge end time based on the discharge end alarm information.

[0080] In this embodiment, the battery discharge may end when the battery terminal voltage is lower than the cutoff voltage, or the battery discharge may end when the power supply system fault is resolved.

[0081] In some examples, step S203 includes: querying discharge end alarm information sequentially according to the second priority, wherein different second priorities correspond to different discharge end reasons; if multiple discharge end alarm information with multiple second priorities is found, the occurrence time in the discharge end alarm information with the highest second priority is determined as the discharge end time.

[0082] For example, first query the indoor baseband processing unit (BBU) outage alarm transmitted through the wireless platform interface and record the time as to1; if the query result is empty, then query the level 2-6 alarm information transmitted through the environmental monitoring platform interface, until all alarms have been retrieved. Similarly, if two or more level 2-6 alarm information are found, record the alarm occurrence time corresponding to the highest second priority, denoted as ton. The discharge end reason and the corresponding second priority are shown in Table 2.

[0083] Table 2. Reasons for discharge termination and corresponding second priority levels.

[0084] Network management identification Alarm cause Value First priority Wireless BBU station break Occurrence time 1 Dynamic ring Local station communication interruption Occurrence time 2 Dynamic ring Secondary power down Occurrence time 3 Wireless Low-voltage power distribution AC input power failure alarm Occurrence time 4 Wireless Smart meter AC input power failure alarm Occurrence time 5 Dynamic ring Switching power supply AC input power failure alarm Occurrence time 6

[0085] S204. Based on the discharge start time and discharge end time, determine the discharge duration corresponding to the discharge load and generate the second capacity assessment information.

[0086] In this embodiment, the discharge duration and remaining battery capacity for each discharge can be obtained based on multiple historical discharge information. Since the load for each discharge may be different, the battery capacity obtained from the test will also be different, and the corresponding second capacity evaluation information will also be different. Multiple second capacity evaluation information can be used to determine the degree of battery degradation.

[0087] The calculation of discharge time can continue to refer to the previous example. If the first priority is level 1 and the second priority is level 1, then the battery discharge time = to1 - tc1, which represents the time from battery discharge caused by the power outage to the station disconnection. If the first priority is level 4 and the second priority is level 2, then the battery discharge time = to2 - tc4, which represents the time from battery discharge caused by the DC power supply abnormality to the interruption of station communication.

[0088] S205. Receive discharge start information and periodically record discharge load current and battery cell voltage. The discharge start information is the battery discharge start information when the power supply system fails.

[0089] S206. Generate the first risk warning information based on the second capacity assessment information.

[0090] In this embodiment, the first risk warning information is used to use the battery discharge time under historical load conditions and the remaining battery capacity evaluated based on historical data as reference data when the battery starts to discharge again, so as to avoid the battery discharge time being too long and causing the station to be disconnected.

[0091] S207. Calculate the discharged capacity based on the discharge load current and the battery cell voltage, and plot the time-capacity discharge curve and the voltage-capacity discharge curve.

[0092] S208. Compare the time-capacity discharge curve and voltage-capacity discharge curve with the standard discharge curve to evaluate the remaining battery capacity.

[0093] S209. Generate first capacity assessment information based on the remaining battery capacity. The first capacity information includes the battery runtime.

[0094] Steps S205 and S207-S209 are respectively with Figure 1 The implementation methods of steps S101-S104 in the embodiments are the same, and will not be repeated in this embodiment.

[0095] The battery capacity testing method provided in this embodiment can effectively use historical discharge information to determine the degree of battery degradation. The second capacity assessment information can also provide timely data support for emergency dispatch and handling in the event of the next power supply system failure, thereby reducing the downtime rate.

[0096] In some examples, after generating the second capacity assessment information, the process further includes: assessing the battery performance based on the first and second capacity assessment information and generating a second risk warning information.

[0097] In this example, whenever a station experiences an incremental power outage or outage, an evaluation mechanism is triggered. This mechanism outputs corresponding first-level capacity evaluation information, which is compared with the second-level capacity evaluation information generated during the previous power outage or outage at that station. Based on the comparison result, risk warnings and rectification suggestions are sent to the station. Both the first and second-level capacity evaluation information include battery performance assessments. This comparison allows for the evaluation of battery degradation levels, enabling the estimation of subsequent battery discharge duration and the timely development of emergency power supply plans to reduce the outage rate.

[0098] In some examples, after obtaining historical discharge information, the process also includes: determining the power system configuration data of the corresponding computer room based on the historical discharge information. The configuration data includes the battery manufacturer and model. The historical discharge information also includes the historical discharge rate and historical ambient temperature. The power system configuration data is mapped and associated with the historical discharge information. The temperature-discharge rate curve of batteries of the same manufacturer and model is plotted and fitted.

[0099] In this example, the power system configuration data is associated with the battery discharge information to facilitate the fitting of temperature-discharge rate curves for batteries of the same manufacturer and model. Specifically, an AI classification and aggregation algorithm can be used to aggregate the curves of batteries of the same manufacturer and model at different temperatures and discharge rates, forming multiple temperature-discharge rate fitting curves. This example method, based on the temperature-discharge rate curves of batteries of the same manufacturer and model, can accurately evaluate battery capacity at different temperatures and discharge rates.

[0100] Based on the above example, after receiving the discharge start information, the ambient temperature during the discharge process can be recorded; the discharge rate can be calculated based on the discharge load current; and the remaining battery capacity can be evaluated based on the ambient temperature, discharge rate, and temperature-discharge rate curve.

[0101] In this example, from multiple temperature-discharge rate curves fitted based on historical discharge information, the curve that best matches the ambient temperature and discharge rate of the current discharge process can be determined to evaluate the remaining battery capacity and driving range. If a curve that best matches the ambient temperature and discharge rate cannot be determined, the remaining battery capacity and driving range are evaluated based on a temperature-discharge rate curve with a higher discharge rate. This eliminates the impact of discharge current fluctuations on the discharge time calculation and avoids the estimated driving range being longer than the actual discharge time, thus preventing battery outages. The method in this example effectively utilizes historical discharge information to provide data support for the current discharge process, avoiding battery outages caused by excessively long battery discharge times.

[0102] Figure 3 A schematic diagram of a battery capacity testing device according to an embodiment of this application is shown. Figure 3 As shown, the battery capacity testing device 30 of this embodiment is used to implement the operation corresponding to the electronic device in any of the above method embodiments. The battery capacity testing device 30 of this embodiment includes:

[0103] The receiving module 301 is used to receive discharge start information and periodically record the discharge load current and battery cell voltage. The discharge start information is the battery discharge start information when the power supply system fails.

[0104] Processing module 302 is used to calculate the discharged capacity and plot the time-capacity discharge curve and voltage-capacity discharge curve based on the discharge load current and the battery cell voltage.

[0105] Evaluation module 303 is used to compare the time-capacity discharge curve and voltage-capacity discharge curve with the standard discharge curve to evaluate the remaining capacity of the battery;

[0106] The evaluation module 303 is also used to generate first capacity evaluation information based on the remaining battery capacity, the first capacity information including battery life.

[0107] In some examples, the battery capacity testing device 30 can receive the information required for capacity testing from a database and send the first capacity assessment information to the work order system.

[0108] The database contains information collected or configured by the environmental monitoring network management system, the wireless network management system, and the resource management system. The environmental monitoring network management system can collect power system configuration information, voltage, current, ambient temperature, and other data. The wireless network management system can collect the BBU's operating status, including BBU voltage information. Cross-validation between the power system voltage data collected by the environmental monitoring network management system and the BBU voltage data collected by the wireless network management system allows for accurate collection of discharge duration, discharge current, and cutoff voltage, avoiding issues of missing or inaccurate data from a single network management system. The resource management system provides resource information for the power system, battery, and load, enabling the identification of the power system to which the battery and load belong. The work order system pushes alarm information generated based on the initial capacity assessment information, presenting the battery's remaining battery life and estimated downtime.

[0109] The battery capacity testing device 30 can pre-create resource views in the database according to the needs of battery capacity analysis, storing battery discharge start and end records, such as a list of battery discharge trigger / end alarm standard IDs and titles, a list of BBU DC voltage abnormality alarm signals, a history of battery discharge trigger alarms, a history of station communication interruption alarms, and a BBU DC voltage abnormality alarm record table. The battery capacity testing device 30 can also retrieve and store data in the corresponding resource views by calling the environmental monitoring platform interface and the wireless platform interface, providing basic data for the next step of data analysis.

[0110] The battery capacity testing device 30 provided in this application embodiment can execute the above method embodiment. Its specific implementation principle and technical effect can be found in the above method embodiment, and will not be repeated here.

[0111] Figure 4 A schematic diagram of the hardware structure of an electronic device according to an embodiment of this application is shown. Figure 4 As shown, the electronic device 40 is used to implement the operation corresponding to the electronic device in any of the above method embodiments. The electronic device 40 in this embodiment may include: a memory 401, a processor 402, and a communication interface (not shown in the figure).

[0112] Memory 401 is used to store computer programs. Memory 401 may include high-speed random access memory (RAM) and may also include non-volatile memory (NVM), such as at least one disk storage device, and may also be a USB flash drive, external hard drive, read-only memory, disk, or optical disc, etc.

[0113] Processor 402 is used to execute the computer program stored in the memory to implement the battery capacity testing method in the above embodiments. For details, please refer to the relevant descriptions in the foregoing method embodiments. The processor 402 can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), etc. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in this invention can be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor.

[0114] Alternatively, the memory 401 can be either standalone or integrated with the processor 402.

[0115] When the memory 401 is a device independent of the processor 402, the electronic device 40 may also include a bus. This bus is used to connect the memory 401 and the processor 402. This bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc. For ease of illustration, the buses shown in the accompanying drawings are not limited to a single bus or a single type of bus.

[0116] The communication interface can be connected to the processor 402 via a bus. The processor 402 can control the communication interface to realize the functions of receiving and sending signals.

[0117] The electronic device 40 provided in this embodiment can be used to perform the above-described battery capacity testing method. Its implementation method and technical effect are similar, and will not be described again in this embodiment.

[0118] This application also provides a computer-readable storage medium storing a computer program / instructions, which, when executed by a processor, are used to implement the methods provided in the various embodiments described above.

[0119] The computer-readable storage medium can be a computer storage medium or a communication medium. A communication medium includes any medium that facilitates the transfer of a computer program from one location to another. A computer storage medium can be any available medium accessible to a general-purpose or special-purpose computer. For example, a computer-readable storage medium is coupled to a processor, enabling the processor to read information from and write information to the computer-readable storage medium. Of course, the computer-readable storage medium can also be a component of the processor. The processor and the computer-readable storage medium can reside in an Application Specific Integrated Circuit (ASIC). Alternatively, the ASIC can reside in a user equipment. Of course, the processor and the computer-readable storage medium can also exist as discrete components in a communication device.

[0120] Specifically, the computer-readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as Static Random-Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The storage medium can be any available medium accessible to general-purpose or special-purpose computers.

[0121] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of modules is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple modules may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or modules may be electrical, mechanical, or other forms.

[0122] The modules can be physically separate, for example, installed in different locations within a single device, installed on different devices, distributed across multiple network units, or distributed across multiple processors. Alternatively, the modules can be integrated, for example, installed in the same device, or integrated into a single codebase. The modules can exist in hardware form, software form, or a combination of both. This application can select some or all of the modules to achieve the objectives of this embodiment based on actual needs.

[0123] It should be understood that although the steps in the flowcharts of the above embodiments are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some of the steps in the figures may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the sub-steps or stages of other steps.

[0124] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A method for testing the capacity of a storage battery, characterized in that, The method includes: The system receives discharge start information and periodically records the discharge load current and individual battery cell voltage. The discharge start information is the battery discharge start information when the power supply system fails. Based on the discharge load current and the battery cell voltage, calculate the discharged capacity and plot the time-capacity discharge curve and the voltage-capacity discharge curve; The remaining battery capacity is evaluated by comparing the time-capacity discharge curve and the voltage-capacity discharge curve with the standard discharge curve. Based on the remaining battery capacity, first capacity assessment information is generated, which includes battery runtime.

2. The method according to claim 1, characterized in that, Before receiving the discharge start information, the method further includes: Obtain historical discharge information and corresponding discharge loads, wherein the historical discharge information includes discharge trigger alarm information and discharge end alarm information; The discharge start time is determined based on the discharge trigger alarm information; The discharge end time is determined based on the discharge end alarm information; Based on the discharge start time and the discharge end time, determine the discharge duration corresponding to the discharge load and generate second capacity assessment information; After receiving the discharge start information, the method further includes: A first risk warning message is generated based on the second capacity assessment information.

3. The method according to claim 2, characterized in that, After generating the second capacity assessment information, the method further includes: Based on the first capacity assessment information and the second capacity assessment information, the performance of the battery is assessed and a second risk warning information is generated.

4. The method according to claim 2, characterized in that, Determining the discharge start time based on the discharge trigger alarm information includes: According to the first priority, the discharge-triggered alarm information is queried sequentially, wherein different first priorities correspond to different discharge-triggered reasons; If multiple discharge-triggered alarm messages with the first priority are found, the occurrence time in the discharge-triggered alarm message with the highest first priority is determined as the discharge start time.

5. The method according to claim 2, characterized in that, Determining the discharge end time based on the discharge end alarm information includes: According to the second priority, the discharge end alarm information is queried sequentially, wherein different second priorities correspond to different discharge end reasons; If multiple discharge end alarm messages of the second priority are found, the occurrence time in the discharge end alarm message with the highest second priority is determined as the discharge end time.

6. The method according to any one of claims 2-5, characterized in that, After obtaining historical discharge information, the process also includes: Based on the historical discharge information, the power system configuration data for the corresponding computer room is determined. The configuration data includes the battery manufacturer and model. The historical discharge information also includes the historical discharge rate and historical ambient temperature. Map and associate the power system configuration data with the historical discharge information; Temperature-discharge rate curves of batteries from the same manufacturer and of the same model were plotted and fitted.

7. The method according to claim 6, characterized in that, After receiving the discharge start information, the method further includes: Record the ambient temperature during the discharge process; Calculate the discharge rate based on the discharge load current; After drawing and fitting the temperature-discharge rate curves of batteries from the same manufacturer and of the same model, the process also includes: The remaining battery capacity is evaluated based on the ambient temperature, the discharge rate, and the temperature-discharge rate curve.

8. A battery capacity testing device, characterized in that, The device includes: The receiving module is used to receive discharge start information and periodically record the discharge load current and battery cell voltage. The discharge start information is the battery discharge start information when the power supply system fails. The processing module is used to calculate the discharged capacity and plot the time-capacity discharge curve and voltage-capacity discharge curve based on the discharge load current and the battery cell voltage. The evaluation module is used to compare the time-capacity discharge curve and the voltage-capacity discharge curve with the standard discharge curve to evaluate the remaining battery capacity. The evaluation module is further configured to generate first capacity evaluation information based on the remaining battery capacity, wherein the first capacity information includes battery runtime.

9. An electronic device, characterized in that, The device includes: a memory and a processor; The memory is used to store computer programs; The processor is used to execute the computer program stored in the memory to implement the battery capacity testing method as described in any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program, which, when executed by a processor, is used to implement the battery capacity testing method as described in any one of claims 1-7.

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