A method, device, equipment and storage medium for determining battery discharge depth

Abstract

The present invention discloses a method, device, equipment and storage medium for determining the discharge depth of a battery. The method for determining the discharge depth of a battery comprises: obtaining historical remaining charge record data of an energy storage battery, determining daily remaining charge record data from the historical remaining charge record data of the energy storage battery; using at least one daily remaining charge record data to determine the maximum remaining charge, and determining the time period corresponding to the maximum remaining charge; within the time period, determining a maximum remaining charge value and a minimum remaining charge value contained in each daily remaining charge record data; and using all maximum remaining charge values ​​and all minimum remaining charge values ​​to determine the discharge depth.

Description

Technical Field

[0001] The embodiments of the present invention relate to battery life estimation technology, and more particularly to a method, device, equipment and storage medium for determining battery discharge depth. Background Art

[0002] Battery life prediction usually includes the following two aspects of work, namely the establishment of a life model for a single operating condition (constant temperature, constant rate, constant discharge depth) and the prediction of battery life in actual scenarios. Due to the limitations of the single operating condition life model, in order to make the prediction results close to the actual attenuation characteristics of the battery, it is necessary to set the life model of a specific unit according to the actual working field, analyze the current conditions, temperature conditions and other information in the actual working scenario, and complete the simulation calculation of the life model of the specific unit.

[0003] For the above current working conditions, when obtaining information, it is necessary to extract the cycle / storage time, equivalent current value, cycle discharge depth, and storage SOC information that can represent the actual working process of the battery.

[0004] Currently, there is a lack of a method that can accurately determine the cycle discharge depth, which leads to low accuracy in the simulation calculation of the life model of a specific unit. Summary of the invention

[0005] The present invention provides a method, device, equipment and storage medium for determining the discharge depth of a battery, so as to achieve the purpose of accurately determining the cycle discharge depth.

[0006] In a first aspect, an embodiment of the present invention provides a method for determining a battery discharge depth, comprising:

[0007] Acquire historical remaining charge record data of the energy storage battery, and determine daily remaining charge record data from the historical remaining charge record data of the energy storage battery;

[0008] Using at least one of the daily remaining charge record data, determine the maximum remaining charge, and determine the time period corresponding to the maximum remaining charge;

[0009] Determine, within the time period, a maximum value of the remaining charge and a minimum value of the remaining charge contained in each item of the daily remaining charge record data;

[0010] The discharge depth is determined by using all the maximum values ​​of the remaining charge and all the minimum values ​​of the remaining charge.

[0011] Optionally, using all the maximum values ​​of the remaining charge and all the minimum values ​​of the remaining charge to determine the depth of discharge includes:

[0012] Determine the maximum value of the remaining charge in the maximum value of the remaining charge and the minimum value of the remaining charge in the minimum value of the remaining charge contained in each item of the daily remaining charge record data;

[0013] Calculate a first average value of all the maximum values ​​of the remaining charge, and calculate a second average value of all the minimum values ​​of the remaining charge;

[0014] The difference between the first average value and the second average value is used as the discharge depth.

[0015] Optionally, it also includes obtaining historical operating condition record data of the energy storage battery;

[0016] The historical operating condition record data of the energy storage battery is used to determine the daily idle time record data of the energy storage battery, and at least two idle state time periods are determined according to the daily idle time record data of the energy storage battery;

[0017] The discharge depth corresponding to each of the shelf state periods is determined respectively.

[0018] Optionally, determining the maximum value of the remaining charge and the minimum value of the remaining charge includes:

[0019] A unit time length is set. If a unique maximum value or minimum value appears within the unit time length, the maximum value is taken as the maximum value of the remaining charge, and the minimum value is taken as the minimum value of the remaining charge.

[0020] Optionally, also include:

[0021] A unit time period is set. If the number of maximum values ​​and / or minimum values ​​within the unit time period is within a set number range, the maximum value is taken as the maximum value of the remaining charge, and the minimum value is taken as the minimum value of the remaining charge.

[0022] Optionally, at least one item of the daily remaining charge record data is used to determine the maximum remaining charge, and determining the time period corresponding to the maximum remaining charge includes:

[0023] Determine the maximum remaining charge corresponding to each item of daily remaining charge record data, and determine the maximum remaining charge time period corresponding to each of the maximum remaining charge;

[0024] The maximum remaining charge time period with the largest number of repetitions is taken as the time period.

[0025] Optionally, the discharge depth determination method is applied to determine the cycle discharge depth of a household energy storage battery.

[0026] In a second aspect, an embodiment of the present invention further provides a battery discharge depth determination device, including a discharge depth determination unit, wherein the discharge depth determination unit includes a first module, a second module, a third module, and a fourth module;

[0027] The first module is used to: obtain the historical remaining charge record data of the energy storage battery, and determine the daily remaining charge record data from the historical remaining charge record data of the energy storage battery;

[0028] The second module is used to: use one of the daily remaining charge record data to determine the maximum remaining charge and determine the time period corresponding to the maximum remaining charge;

[0029] The third module is used to: determine the maximum value of the remaining charge and the minimum value of the remaining charge contained in each item of the daily remaining charge record data within the time period;

[0030] The fourth module is used to determine the discharge depth using all the maximum values ​​of the remaining charge and all the minimum values ​​of the remaining charge.

[0031] In a third aspect, an embodiment of the present invention further provides an electronic device, comprising at least one processor, and a memory communicatively connected to the at least one processor;

[0032] The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the battery discharge depth determination method described in the embodiment of the present invention.

[0033] In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the battery discharge depth determination method recorded in the embodiment of the present invention when executed.

[0034] Compared with the prior art, the beneficial effect of the present invention lies in that: the present invention proposes a method for determining the discharge depth of a battery, in which daily residual charge record data is obtained, the maximum residual charge contained therein is determined, and the time period corresponding to the maximum residual charge is further determined, and then the maximum residual charge value and the minimum residual charge value contained in the daily residual charge record data within the time period are determined, and the discharge depth of the energy storage battery is determined according to the maximum residual charge value and the minimum residual charge value. The discharge depth is determined by using the maximum residual charge value and the minimum residual charge value within the above time period, which can reduce the calculation abnormality of the discharge depth caused by numerical abnormality. At the same time, the discharge depth is related to the change characteristics of the residual charge of the energy storage battery, thereby improving the calculation accuracy of the discharge depth in real scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is a flow chart of a method for determining a battery discharge depth in an embodiment;

[0036] Figure 2 is a flow chart of another method for determining a battery discharge depth in an embodiment;

[0037] Figure 3 Schematic diagram of an electronic device in an embodiment. DETAILED DESCRIPTION

[0038] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0039] Embodiment 1

[0040] Figure 1 is a flow chart of a method for determining a battery discharge depth in an embodiment, refer to Figure 1 , the discharge depth determination method includes:

[0041] S101. Obtain historical remaining charge record data of the energy storage battery, and determine daily remaining charge record data from the historical remaining charge record data of the energy storage battery.

[0042] In this embodiment, the discharge depth determination method is used to determine the equivalent discharge depth of the energy storage battery after undergoing a cyclic charge and discharge process, which is particularly suitable for determining the equivalent discharge depth (cyclic discharge depth) of household energy storage batteries.

[0043] Exemplarily, in this embodiment, the historical remaining charge record data of the energy storage battery includes the remaining charge of the energy storage battery at each data recording time point within a certain period of time (such as year, quarter, month, etc.).

[0044] Exemplarily, in this embodiment, the remaining charge is used to represent the state of charge (SOC) of the energy storage battery.

[0045] Exemplarily, in this embodiment, after obtaining the historical remaining charge record data of the energy storage battery, the historical remaining charge record data of the energy storage battery is divided into a number of daily remaining charge record data based on the timestamp and in days.

[0046] Exemplarily, in this embodiment, a daily remaining charge record data includes the remaining charge of the energy storage battery at each data recording time point in one day.

[0047] S102. Using at least one item of daily remaining charge record data, determine a maximum remaining charge, and determine a time period corresponding to the maximum remaining charge.

[0048] Exemplarily, in this embodiment, taking the use of a daily remaining charge record data to determine the above time period as an example, when determining the above time period, the maximum remaining charge included in the daily remaining charge record data is determined, and the time period corresponding to the maximum remaining charge is determined.

[0049] Illustratively, in this embodiment, the length of the time period can be set according to design requirements, for example, the length of the time period can be 1 to 3 hours.

[0050] Exemplarily, in this embodiment, determining the time period corresponding to the maximum remaining charge specifically includes determining the start time and the end time of the time period;

[0051] For example, the time corresponding to the maximum remaining charge can be used as the midpoint of the time period, thereby determining the start time and end time of the time period;

[0052] For example, if the time when the maximum remaining charge occurs is 11:00 and the length of the time period is set to 2 hours, the time period may be specifically 10:00-12:00.

[0053] Exemplarily, in one possible implementation scheme, the time period corresponding to the maximum remaining charge may also be determined in the following manner:

[0054] Determine the maximum remaining charge corresponding to each item of daily remaining charge record data, and determine the maximum remaining charge time period corresponding to each maximum remaining charge;

[0055] The time period with the maximum remaining charge and the most repetition times is taken as the above time period.

[0056] Exemplarily, in this scheme, for a daily remaining charge record data, the method of determining the maximum remaining charge time period corresponding to the maximum remaining charge (the maximum remaining charge included in the daily remaining charge record data) is the same as the aforementioned method of determining the above time period using a daily remaining charge record data.

[0057] Exemplarily, in this solution, if the maximum deviation of the two maximum remaining charge time periods is less than a set value (e.g., 10 to 30 minutes), it is determined that the maximum remaining charge time period is repeated;

[0058] For example, if the four determined maximum remaining charge time periods are 10:00-12:00, 10:20-12:20, 8:00-10:00, and 10:10-12:10, 10:00-12:00 (or 10:20-12:20, 10:10-12:10) may be used as the above time period.

[0059] S103. Determine the maximum remaining charge value and the minimum remaining charge value contained in each daily remaining charge record data within the time period.

[0060] Exemplarily, in this embodiment, there may be a plurality of extreme values ​​of the remaining charge (including a maximum value of the remaining charge and a minimum value of the remaining charge) within a time period.

[0061] Exemplarily, in this embodiment, the method for determining the extreme value of the remaining charge is not specifically limited. For example, the extreme value of the remaining charge can be determined based on the definition of the extreme value.

[0062] S104. Determine the depth of discharge using the maximum value of the total remaining charge and the minimum value of the total remaining charge.

[0063] Exemplarily, in this embodiment, after determining all the maximum values ​​of the remaining charge and the minimum values ​​of the remaining charge contained in the historical remaining charge record data of the energy storage battery, the discharge depth can be determined according to the following method:

[0064] Calculating a first average value of all maximum values ​​of the remaining charge, calculating a second average value of all minimum values ​​of the remaining charge, and taking the difference between the first average value and the second average value as the depth of discharge;

[0065] Alternatively, the depth of discharge can be determined as follows:

[0066] Determine the maximum value of the remaining charge in the maximum value of the remaining charge and the minimum value of the remaining charge in the minimum value of the remaining charge contained in each daily remaining charge record data;

[0067] A first average value of all the maximum values ​​of the remaining charge is calculated, a second average value of all the minimum values ​​of the remaining charge is calculated, and a difference between the first average value and the second average value is used as the depth of discharge.

[0068] Exemplarily, in this embodiment, the calculated discharge depth is the equivalent discharge depth after a certain period of time (such as a year, quarter, month, etc.) after the energy storage battery undergoes a cyclic charge and discharge process.

[0069] This embodiment proposes a method for determining the depth of discharge, in which daily residual charge record data is obtained, the maximum residual charge contained therein is determined, and the time period corresponding to the maximum residual charge is further determined. Subsequently, the maximum residual charge value and the minimum residual charge value contained in the daily residual charge record data within the time period are determined, and the depth of discharge of the energy storage battery is determined according to the maximum residual charge value and the minimum residual charge value. The maximum residual charge value and the minimum residual charge value within the above time period are used to determine the depth of discharge, which can reduce the calculation abnormality of the depth of discharge caused by numerical abnormality. At the same time, the depth of discharge is related to the change characteristics of the residual charge of the energy storage battery, thereby improving the calculation accuracy of the depth of discharge in real scenarios.

[0070] Figure 2 is another flow chart of a method for determining a battery discharge depth in an embodiment, refer to Figure 2 As an implementable embodiment, the method for determining the discharge depth can be:

[0071] S201. Obtain historical remaining charge record data of the energy storage battery, and determine daily remaining charge record data from the historical remaining charge record data of the energy storage battery.

[0072] S202. Using at least one item of daily remaining charge record data, determine the maximum remaining charge, and determine a time period corresponding to the maximum remaining charge.

[0073] S203. Determine the maximum remaining charge value and the minimum remaining charge value contained in each daily remaining charge record data within the time period.

[0074] Exemplarily, in this solution, the implementation methods of steps S201 to S203 are the same as the corresponding contents recorded in steps S101 to S103.

[0075] S204. Obtain historical operating condition record data of the energy storage battery, and use the historical operating condition record data of the energy storage battery to determine the daily idle time record data of the energy storage battery.

[0076] Exemplarily, in this solution, the historical operating condition record data of the energy storage battery includes the operating condition data of the energy storage battery within a certain period of time (such as year, quarter, month, etc.).

[0077] Exemplarily, in this solution, the operating condition data may be energy storage battery input power data (such as grid feed input power, grid input power, photovoltaic power generation input power, etc.), energy storage battery output power data (such as user load), etc.

[0078] Exemplarily, in this solution, after obtaining the historical operating condition record data of the energy storage battery, the historical operating condition record data of the energy storage battery is divided into a number of daily idle time record data of the energy storage battery according to the timestamp and in units of days.

[0079] Exemplarily, in this solution, an item of daily storage battery idle time record data includes the operating condition data of the energy storage battery at each data recording time point in one day.

[0080] S205. Determine at least two idle state periods according to the daily idle time record data of the energy storage battery.

[0081] Exemplarily, in this solution, based on the working condition data included in the daily idle time record data, the idle time of the energy storage battery on that day can be analyzed;

[0082] If the hold times corresponding to the two daily hold time record data are the same (or approximately the same), and the timestamps of the two daily hold time record data are adjacent, the unit days are accumulated to determine at least two hold status periods.

[0083] Exemplarily, in this scheme, the unit of the shelving status period can be month. For example, as a shelving status period segmentation result, January and December are divided into high shelving status periods, February, March, October and November are medium shelving status periods, and April to September are low shelving status periods, totaling 7 shelving status periods.

[0084] S206. Determine the discharge depth corresponding to each idle state period using the maximum value of the remaining charge and the minimum value of the remaining charge.

[0085] Exemplarily, in this solution, the discharge depth corresponding to each shelf state period is determined in the following manner:

[0086] Determine the maximum value of all remaining charge and the minimum value of all remaining charge contained in each idle state period;

[0087] The discharge depth of each shelf state period is determined by using the maximum value of all remaining charge and the minimum value of all remaining charge.

[0088] Exemplarily, in this solution, except that the maximum value of the remaining charge and the minimum value of the remaining charge are different, the method of calculating the discharge depth of each idle state period is the same as that recorded in step S104.

[0089] exist Figure 1On the basis of the beneficial effects of the scheme shown, in this scheme, the shelving period of the energy storage battery is determined according to the daily shelving time record data of the energy storage battery, and the discharge depth corresponding to each shelving period is calculated respectively. Based on this, the discharge depth of the energy storage battery can be avoided from being affected by time factors such as seasons, thereby improving the calculation accuracy of the discharge depth.

[0090] Exemplarily, based on the content recorded in step S103, in one possible implementation scheme, determining the maximum value of the remaining charge and the minimum value of the remaining charge includes:

[0091] Set a unit time. If a unique maximum or minimum value appears within the unit time, the maximum value is used as the maximum value of the remaining charge, and the minimum value is used as the minimum value of the remaining charge.

[0092] Exemplarily, in this solution, the unit time is a short period of time (eg, 1 to 10 minutes). If there is a unique maximum or minimum value within the unit time, the maximum value is taken as the maximum value of the remaining charge, and the minimum value is taken as the minimum value of the remaining charge.

[0093] exist Figure 1 On the basis of the beneficial effects of the scheme shown, in the present scheme, when determining the maximum value and the minimum value of the remaining charge, a unit time is set. If the maximum value or the minimum value that appears within the unit time is unique, the maximum value is used as the maximum value of the remaining charge, and the minimum value is used as the minimum value of the remaining charge. Based on this, the problem of inaccurate determination of the maximum value or the minimum value of the remaining charge due to the repeated rise and fall of the remaining charge in a short period of time caused by the current fluctuation in a short period of time can be avoided.

[0094] Exemplarily, based on the content recorded in step S103, in one possible implementation scheme, determining the maximum value of the remaining charge and the minimum value of the remaining charge includes:

[0095] Set the unit time length and determine whether a unique maximum or minimum value appears within the unit time length;

[0096] Set a unit time period, and determine whether the number of maximum values ​​and / or minimum values ​​in the unit time period is within a set number range;

[0097] If there is only one maximum or minimum value in a unit time period, and the number of maximum and / or minimum values ​​in the unit time period is within the set quantity range;

[0098] The above maximum value is taken as the maximum value of the remaining charge, and the minimum value is taken as the minimum value of the remaining charge.

[0099] Exemplarily, in this solution, the unit duration is a short period of time (eg, 1 to 10 minutes), and the duration of the unit period is the same as the duration of the period used in step S103.

[0100] Exemplarily, in this scheme, when determining the maximum value and the minimum value of the remaining charge, if there is a unique maximum value or minimum value within a unit time period, and the number of maximum values ​​and / or minimum values ​​within the unit time period is within the set number range; then the above maximum value is used as the maximum value of the remaining charge, and the minimum value is used as the minimum value of the remaining charge. Based on this, the problem of inaccurate determination of the maximum value or the minimum value of the remaining charge caused by abnormal extreme values ​​on individual days can be minimized.

[0101] Embodiment 2

[0102] This embodiment provides a battery discharge depth determination device, including a discharge depth determination unit, the discharge depth determination unit including a first module, a second module, a third module, and a fourth module:

[0103] The first module is used to: obtain the historical remaining charge record data of the energy storage battery, and determine the daily remaining charge record data from the historical remaining charge record data of the energy storage battery;

[0104] The second module is used to: use a daily remaining charge record data to determine the maximum remaining charge and determine the time period corresponding to the maximum remaining charge;

[0105] The third module is used to: determine the maximum value of the remaining charge and the minimum value of the remaining charge contained in each daily remaining charge record data within the time period;

[0106] The fourth module is used to determine the discharge depth using the maximum value of the total remaining charge and the minimum value of the total remaining charge.

[0107] Exemplarily, in one possible implementation scheme, the fourth module may also be used for:

[0108] Obtain the historical working condition record data of the energy storage battery, and use the historical working condition record data of the energy storage battery to determine the daily storage time record data of the energy storage battery;

[0109] Determine at least two idle state periods based on the daily idle time record data of the energy storage battery;

[0110] The maximum value of the remaining charge and the minimum value of the remaining charge are respectively used to determine the discharge depth corresponding to each shelf state period.

[0111] Exemplarily, in one possible implementation, the third module determines the maximum value of the remaining charge and the minimum value of the remaining charge, including:

[0112] Set a unit time. If a unique maximum or minimum value appears within the unit time, the maximum value is used as the maximum value of the remaining charge, and the minimum value is used as the minimum value of the remaining charge.

[0113] Exemplarily, in one possible implementation, the third module determines the maximum value of the remaining charge and the minimum value of the remaining charge, including:

[0114] Set the unit time length and determine whether a unique maximum or minimum value appears within the unit time length;

[0115] Set a unit time period, and determine whether the number of maximum values ​​and / or minimum values ​​in the unit time period is within a set number range;

[0116] If there is only one maximum or minimum value in a unit time period, and the number of maximum and / or minimum values ​​in the unit time period is within the set quantity range;

[0117] The above maximum value is taken as the maximum value of the remaining charge, and the minimum value is taken as the minimum value of the remaining charge.

[0118] Illustratively, in this embodiment, the specific implementation process and beneficial effects of the discharge depth determination unit are the same as the corresponding contents recorded in the first embodiment, and are not described again here.

[0119] Embodiment 3

[0120] Figure 3 A schematic diagram of the structure of an electronic device 10 that can be used to implement an embodiment of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or required herein.

[0121] like Figure 3As shown, the electronic device 10 includes at least one processor 11, and a memory connected to the at least one processor 11, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., wherein the memory stores a computer program that can be executed by at least one processor, and the processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 to the random access memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 can also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other through a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0122] A number of components in the electronic device 10 are connected to the I / O interface 15, including: an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0123] The processor 11 may be a variety of general and / or dedicated processing components with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 11 executes the various methods and processes described above, such as a method for determining a battery discharge depth.

[0124] In some embodiments, the battery discharge depth determination method may be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed on the electronic device 10 via the ROM 12 and / or the communication unit 19. When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the battery discharge depth determination method described above may be performed. Alternatively, in other embodiments, the processor 11 may be configured to execute the battery discharge depth determination method in any other appropriate manner (e.g., by means of firmware).

[0125] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0126] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that when the computer program is executed by the processor, the functions / operations specified in the flow chart and / or block diagram are implemented. The computer program may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0127] In the context of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in combination with an instruction execution system, device or equipment. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0128] To provide interaction with a user, the systems and techniques described herein may be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices may also be used to provide interaction with the user; for example, the feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form (including acoustic input, voice input, or tactile input).

[0129] The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0130] A computing system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The client and server relationship is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services.

[0131] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A method for determining a battery discharge depth, characterized in that: include: Acquire historical remaining charge record data of the energy storage battery, and determine daily remaining charge record data from the historical remaining charge record data of the energy storage battery; Using at least one of the daily remaining charge record data, determine the maximum remaining charge, and determine the time period corresponding to the maximum remaining charge; Determine the maximum value of the remaining charge and the minimum value of the remaining charge contained in each item of the daily remaining charge record data within the time period; Determine the depth of discharge according to all the maximum values ​​of the remaining charge and all the minimum values ​​of the remaining charge; Determining the discharge depth using all the maximum values ​​of the remaining charge and all the minimum values ​​of the remaining charge includes: Determine the maximum value of the remaining charge in the maximum value of the remaining charge and the minimum value of the remaining charge in the minimum value of the remaining charge contained in each item of the daily remaining charge record data; Calculate a first average value of all the maximum values ​​of the remaining charge, and calculate a second average value of all the minimum values ​​of the remaining charge; The difference between the first average value and the second average value is used as the discharge depth.

2. The method for determining the battery discharge depth according to claim 1, wherein: The method also includes obtaining historical operating condition record data of the energy storage battery; Determine the daily idle time record data of the energy storage battery according to the historical working condition record data of the energy storage battery, and determine at least two idle state time periods according to the daily idle time record data of the energy storage battery; The discharge depth corresponding to each of the shelf state periods is determined respectively.

3. The method for determining battery discharge depth according to claim 1, wherein: Determining the maximum value of the remaining charge and the minimum value of the remaining charge includes: A unit time length is set. If a unique maximum value or minimum value appears within the unit time length, the maximum value is taken as the maximum value of the remaining charge, and the minimum value is taken as the minimum value of the remaining charge.

4. The method for determining the battery discharge depth as claimed in claim 3, characterized in that: Also includes: A unit time period is set. If the number of maximum values ​​and / or minimum values ​​within the unit time period is within a set number range, the maximum value is taken as the maximum value of the remaining charge, and the minimum value is taken as the minimum value of the remaining charge.

5. The method for determining battery discharge depth according to claim 1, wherein: Using at least one of the daily remaining charge record data to determine the maximum remaining charge, and determining the time period corresponding to the maximum remaining charge includes: Determine the maximum remaining charge corresponding to each item of daily remaining charge record data, and determine the maximum remaining charge time period corresponding to each of the maximum remaining charge; The maximum remaining charge time period with the largest number of repetitions is taken as the time period.

6. The method for determining the battery discharge depth according to any one of claims 1 to 5, characterized in that: The discharge depth determination method is used to determine the cycle discharge depth of a household energy storage battery.

7. A device for determining a battery discharge depth, characterized in that: A discharge depth determination unit is included, wherein the discharge depth determination unit includes a first module, a second module, a third module, and a fourth module; The first module is used to: obtain the historical remaining charge record data of the energy storage battery, and determine the daily remaining charge record data from the historical remaining charge record data of the energy storage battery; The second module is used to: use one of the daily remaining charge record data to determine the maximum remaining charge and determine the time period corresponding to the maximum remaining charge; The third module is used to: determine the maximum value of the remaining charge and the minimum value of the remaining charge contained in each item of the daily remaining charge record data within the time period; The fourth module is used to: determine the discharge depth by using all the maximum values ​​of the remaining charge and all the minimum values ​​of the remaining charge; The fourth module is used to: determine the maximum value of the remaining charge in the maximum value of the remaining charge, and the minimum value of the remaining charge in the minimum value of the remaining charge, contained in each item of the daily remaining charge record data; Calculate a first average value of all the maximum values ​​of the remaining charge, and calculate a second average value of all the minimum values ​​of the remaining charge; The difference between the first average value and the second average value is used as the discharge depth.

8. An electronic device, characterized in that: comprising at least one processor, and a memory communicatively connected to the at least one processor; The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can perform the method for determining the battery discharge depth according to any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the method for determining the battery discharge depth according to any one of claims 1 to 6 when executed.

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