Off-site power battery state monitoring method, device and equipment and storage medium

Abstract

The present application relates to the technical field of new energy vehicles, and particularly relates to a state monitoring method, device and equipment of off-site power batteries and a storage medium, the present application obtains a vehicle identifier of a new energy vehicle and theoretical battery pack attributes corresponding to the vehicle identifier by responding to a power supplement request of the new energy vehicle; after the new energy vehicle finishes power supplement, actual battery pack attributes of the new energy vehicle are obtained; the battery state of the power battery on the new energy vehicle is monitored according to the theoretical battery pack attributes and the actual battery pack attributes, the theoretical battery pack attributes of the vehicle are queried through the vehicle identifier of the new energy vehicle requesting power supplement, and the actual battery pack attributes of the new energy vehicle are obtained after the new energy vehicle finishes power supplement, so that the battery state of the power battery is monitored according to the consistency of the actual battery pack attributes and the theoretical battery pack attributes, the monitoring steps of the power battery are simplified, and the monitoring efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of new energy vehicle technology, and in particular to a method, device, equipment, and storage medium for monitoring the status of off-site power batteries. Background Technology

[0002] In the field of battery swapping, new energy vehicles can quickly replenish energy by replacing batteries. However, in real life, under the vehicle-battery separation model, battery asset management companies lack the means to monitor the status of power batteries, making it difficult to achieve early warning of power battery status and trace the source of problems.

[0003] In the traditional approach, battery asset management can only be carried out manually at battery swapping stations. After the power battery is swapped, an asset inventory is conducted to verify the battery status and ensure its safety. However, this method has low accuracy, is time-consuming, and cannot effectively guarantee the value of battery assets. Furthermore, some battery swapping vehicle owners will choose to charge their vehicles when they need to replenish their energy. In the charging mode, it is impossible to manually verify the battery status and achieve the purpose of monitoring the power battery status.

[0004] The above content is only used to help understand the technical solution of the present invention and does not represent an admission that the above content is prior art. Summary of the Invention

[0005] The main objective of this invention is to provide a method, apparatus, device, and storage medium for monitoring the status of off-site power batteries, aiming to solve the technical problems of difficulty in tracing the status of swapped power batteries and the difficulty in monitoring battery status in the prior art.

[0006] To achieve the above objectives, the present invention provides a method for monitoring the status of off-site power batteries, the method comprising the following steps:

[0007] In response to a refueling request from a new energy vehicle, the vehicle identifier of the new energy vehicle and the theoretical battery pack attributes corresponding to the vehicle identifier are obtained.

[0008] After the new energy vehicle finishes recharging, obtain the actual battery pack attributes of the new energy vehicle;

[0009] Monitor the battery status of the power battery in the new energy vehicle based on the theoretical battery pack attributes and the actual battery pack attributes.

[0010] Optionally, the energy replenishment request includes: a battery swapping request and a charging request, and the battery pack attributes include at least: battery number and battery health.

[0011] The off-site power battery status monitoring method includes:

[0012] When the energy replenishment request is a battery swapping request, the actual battery number of the power battery in the new energy vehicle is obtained;

[0013] When the actual battery number is inconsistent with the theoretical battery number, the historical charging records and historical battery health status of the new energy vehicle are obtained based on the vehicle identifier.

[0014] Based on the historical power replenishment records and the historical battery health status, trace the battery abnormality period;

[0015] A battery early warning report is generated based on the traceability results.

[0016] Optionally, after obtaining the actual battery number of the power battery in the new energy vehicle when the energy replenishment request is a battery swapping request, the method further includes:

[0017] When the actual battery number matches the theoretical battery number, the current battery health status of the power battery is obtained;

[0018] Calculate the battery health state difference between the current health state and the historical battery health state;

[0019] When the difference in battery health status is within a preset attenuation range, the battery status of the power battery in the new energy vehicle is determined to be normal.

[0020] Optionally, the off-site power battery status monitoring method further includes:

[0021] When the energy replenishment request is a charging request, a communication connection channel is established with the new energy vehicle;

[0022] Based on the communication connection channel, a battery health status request is sent to the new energy vehicle so that the new energy vehicle periodically sends the battery health status of the power battery.

[0023] A theoretical battery charging curve is constructed based on the battery health state.

[0024] Monitor the actual charging curve of the power battery during the charging process;

[0025] Calculate the deviation rate between the theoretical battery charging curve and the actual charging curve;

[0026] The battery status of the power battery on the new energy vehicle is monitored based on the deviation rate.

[0027] Optionally, calculating the deviation rate between the theoretical battery charging curve and the actual charging curve includes:

[0028] Determine the critical charging moments in the theoretical battery charging curve;

[0029] Based on the critical charging moments, the theoretical battery charging curve is divided into multiple segments to obtain the theoretical battery charging curve.

[0030] Based on the critical charging moments, multiple segments of the actual battery charging curve are determined on the actual charging curve.

[0031] Calculate the deviation rate between each segment of the theoretical battery charging curve and each segment of the actual battery charging curve to obtain multiple deviation rates;

[0032] The multiple deviation rates are normalized to obtain the deviation rate between the theoretical battery charging curve and the actual charging curve.

[0033] Optionally, obtaining the vehicle identifier of the new energy vehicle and the theoretical battery pack attributes corresponding to the vehicle identifier includes:

[0034] Obtain the vehicle identifier of the new energy vehicle, and obtain the historical energy replenishment records of the new energy vehicle based on the vehicle identifier;

[0035] Generate a set of power battery state changes for the new energy vehicle based on the historical recharge records;

[0036] By using the set of power battery state changes, the theoretical battery pack attributes of the new energy vehicle can be queried.

[0037] Furthermore, to achieve the above objectives, the present invention also proposes an off-site power battery status monitoring device, the off-site power battery status monitoring device comprising:

[0038] The acquisition module is used to acquire the vehicle identifier of the new energy vehicle and the theoretical battery pack attributes corresponding to the vehicle identifier in response to the energy replenishment request of the new energy vehicle.

[0039] The acquisition module is also used to acquire the actual battery pack attributes of the new energy vehicle after the refueling of the new energy vehicle is completed;

[0040] The monitoring module is used to monitor the battery status of the power battery in the new energy vehicle based on the theoretical battery pack attributes and the actual battery pack attributes.

[0041] Furthermore, to achieve the above objectives, the present invention also proposes an off-site power battery status monitoring device, the off-site power battery status monitoring device comprising: a memory, a processor, and an off-site power battery status monitoring program stored in the memory and executable on the processor, the off-site power battery status monitoring program being configured to implement the steps of the off-site power battery status monitoring method described above.

[0042] In addition, to achieve the above objectives, the present invention also proposes a storage medium storing an off-site power battery status monitoring program, wherein the off-site power battery status monitoring program, when executed by a processor, implements the steps of the off-site power battery status monitoring method described above.

[0043] In addition, to achieve the above objectives, this application also provides a computer program product, which includes a computer program that, when executed by a processor, implements the steps of the off-site power battery status monitoring method described above.

[0044] This invention responds to a recharge request from a new energy vehicle, obtains the vehicle identifier of the new energy vehicle and the theoretical battery pack attributes corresponding to the vehicle identifier; after the new energy vehicle completes recharge, it obtains the actual battery pack attributes of the new energy vehicle; and monitors the battery status of the power battery on the new energy vehicle based on the consistency between the actual and theoretical battery pack attributes. It queries the theoretical battery pack attributes of the vehicle by using the vehicle identifier of the new energy vehicle requesting recharge, and obtains the actual battery pack attributes after the new energy vehicle completes recharge. This simplifies the monitoring steps for the power battery, improves monitoring efficiency, and avoids the technical problems of difficulty in tracing the status of swapped power batteries and the difficulty in monitoring battery status in existing technologies. Attached Figure Description

[0045] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0046] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0047] Figure 1 This is a flowchart illustrating the first embodiment of the off-site power battery status monitoring method of the present invention;

[0048] Figure 2 This is a flowchart illustrating the second embodiment of the off-site power battery status monitoring method of the present invention;

[0049] Figure 3 This is a flowchart illustrating another implementation of the second embodiment of the off-site power battery status monitoring method of the present invention;

[0050] Figure 4This is a structural block diagram of the first embodiment of the off-site power battery status monitoring device of the present invention;

[0051] Figure 5 This is a schematic diagram of the structure of the off-site power battery status monitoring device in the hardware operating environment involved in the embodiments of the present invention.

[0052] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0053] It should be understood that the specific embodiments described herein are merely illustrative of the technical solutions of this application and are not intended to limit this application.

[0054] Based on this, embodiments of the present invention provide a method for monitoring the status of off-site power batteries, referring to... Figure 1 , Figure 1 This is a flowchart illustrating the first embodiment of the off-site power battery status monitoring method of the present invention.

[0055] In this embodiment, the off-site power battery status monitoring method includes:

[0056] Step S10: In response to the energy replenishment request of the new energy vehicle, obtain the vehicle identifier of the new energy vehicle and the theoretical battery pack attributes corresponding to the vehicle identifier.

[0057] It should be noted that the executing entity in this embodiment can be a computing service device with data processing, network communication, and program execution functions, such as a personal computer, a cloud server, or an electronic device capable of performing the above functions, such as a battery swapping station control computer. The following description uses a battery swapping station control computer as an example to illustrate this embodiment and the subsequent embodiments.

[0058] It should be noted that in the field of battery swapping, car owners have two ways to replenish energy: charging and battery swapping. In the case of vehicle-battery separation, battery asset management companies can only monitor the status of off-site power batteries before and after battery swapping. Moreover, they can only check the status data of the swapped-out batteries through manual inventory to determine whether the off-site power batteries have been damaged or modified, which is inefficient.

[0059] Based on this, this embodiment has a corresponding off-site power battery status monitoring strategy for the energy replenishment process of any mode of new energy vehicle, and the status of the off-site power battery is monitored throughout the process by changes in battery pack attributes, which improves monitoring efficiency and monitoring strength.

[0060] It is understood that the energy replenishment request includes: battery swapping request and charging request. The vehicle identifier can be a data identifier used to characterize the vehicle's uniqueness, such as: VIN, vehicle number, or other strings that can identify the vehicle's uniqueness. The battery pack attributes include at least: battery number and battery health, and may also include the current battery pack charge level. This embodiment does not impose specific limitations on this.

[0061] Optionally, obtaining the vehicle identifier of the new energy vehicle and the theoretical battery pack attributes corresponding to the vehicle identifier includes:

[0062] Obtain the vehicle identifier of the new energy vehicle, and obtain the historical energy replenishment records of the new energy vehicle based on the vehicle identifier;

[0063] Generate a set of power battery state changes for the new energy vehicle based on the historical recharge records;

[0064] By using the set of power battery state changes, the theoretical battery pack attributes of the new energy vehicle can be queried.

[0065] In practice, after each battery replacement, the battery leaving the battery swapping station is recorded, forming a battery replacement record for each vehicle. Therefore, before swapping batteries, each vehicle can query its historical charging records, especially the battery swapping records, to find information such as the theoretically installed battery model, battery health, and battery number. As long as the owner has not disassembled or modified the power battery after leaving the station, its theoretical battery pack attributes should be the same as the recorded data.

[0066] However, considering that some car owners have long battery swapping cycles and different usage styles, the health of the off-site power battery may change. In this embodiment, the attributes of the power battery on the vehicle can be predicted by combining the state change set of the off-site power battery. By establishing a mapping and binding relationship between the vehicle identifier and the state change set of the off-site power battery, the state change of the battery can be automatically identified before and after the vehicle is recharged, thereby ensuring the safety of the off-site power battery and the income of the battery asset management company.

[0067] Step S20: After the new energy vehicle finishes recharging, obtain the actual battery pack attributes of the new energy vehicle.

[0068] In this embodiment, both the battery swapping process and the charging process can adopt conventional charging and swapping schemes in the art, and this embodiment does not impose any specific limitations on them.

[0069] Specifically, after a vehicle completes a battery swap, the removed battery can be tested using instruments to measure its actual health, battery number, and other information. This allows for monitoring of the power battery's status based on the consistency between the actual and theoretical battery pack attributes.

[0070] Even when the vehicle is recharged by charging, the charging status curve of the battery can be monitored by the power station to monitor the current status of the power battery. In addition, the current status of the battery can be uploaded to the network by the vehicle's control chip. Considering that the battery status upload of the control chip of new energy vehicles may be affected by network, environment or subjective factors of the vehicle owner, there may be upload delays or disconnections. Therefore, this embodiment and subsequent embodiments are mainly described based on power station monitoring.

[0071] Step S30: Monitor the battery status of the power battery in the new energy vehicle based on the theoretical battery pack attributes and the actual battery pack attributes.

[0072] It should be understood that when the theoretical battery pack attributes of the off-site power battery pack are consistent with the actual battery pack attributes, it indicates that the off-site power battery is in normal condition. When any of the theoretical battery pack attributes and the actual battery pack attributes are inconsistent, an early warning message can be generated to remind the battery asset management company to trace the problem to its source and avoid greater losses. Specifically, during the problem tracing process, the power battery status change set can be combined with the battery replacement record to directly trace the vehicle at the time of the problem, thereby improving the efficiency of tracing.

[0073] This embodiment responds to a new energy vehicle's recharge request, obtains the vehicle identifier of the new energy vehicle and the theoretical battery pack attributes corresponding to the vehicle identifier; after the new energy vehicle completes recharge, it obtains the actual battery pack attributes of the new energy vehicle; based on the theoretical battery pack attributes and the actual battery pack attributes, it monitors the battery status of the power battery on the new energy vehicle. It queries the vehicle's theoretical battery pack attributes using the vehicle identifier of the new energy vehicle requesting recharge, and obtains the actual battery pack attributes after the new energy vehicle completes recharge. Therefore, based on the consistency between the actual and theoretical battery pack attributes, it monitors the power battery status, simplifies the power battery monitoring steps, improves monitoring efficiency, and avoids the technical problems of difficulty in tracing the status of swapped power batteries and the difficulty in monitoring battery status in existing technologies.

[0074] Based on the first embodiment of this application, in the second embodiment of this application, the content that is the same as or similar to that in Embodiment 1 above can be referred to the above description, and will not be repeated hereafter. Based on this, please refer to... Figure 2 After step S10, the following steps are also included:

[0075] Step S201: When the energy replenishment request is a battery swapping request, obtain the actual battery number of the power battery in the new energy vehicle.

[0076] Step S202: When the actual battery number is inconsistent with the theoretical battery number, obtain the historical charging records and historical battery health status of the new energy vehicle based on the vehicle identifier.

[0077] Step S203: Trace the abnormal battery periods based on the historical power replenishment records and the historical battery health status.

[0078] Step S204: Generate a battery warning report based on the traceability results.

[0079] It should be noted that when a vehicle requests a battery swap, after the swap is completed, the actual battery number of the removed battery can be read. This allows for comparison with the theoretical battery number of the power battery that was replaced during the previous swap, thus determining whether the power battery has been swapped or modified.

[0080] When it is discovered that the battery may have been swapped or modified, the vehicle's historical charging records and the historical battery health status during the charging process can be queried online. Finally, based on the historical charging records and historical battery health status, the abnormal battery period can be traced, that is, it can be detected which charging period the battery health status changed abnormally, thereby ensuring the monitoring of the power battery status and providing a rights protection report for the battery asset management company.

[0081] Optionally, after obtaining the actual battery number of the power battery in the new energy vehicle when the energy replenishment request is a battery swapping request, the method further includes:

[0082] When the actual battery number matches the theoretical battery number, the current battery health status of the power battery is obtained;

[0083] Calculate the battery health state difference between the current health state and the historical battery health state;

[0084] When the difference in battery health status is within a preset attenuation range, the battery status of the power battery in the new energy vehicle is determined to be normal.

[0085] It should be understood that if the actual battery number matches the theoretical battery number, it only indicates that the off-site power battery has not been replaced without authorization, but it is still unknown whether the battery has been damaged. Therefore, in this embodiment, when the actual battery number matches the theoretical battery number, the current battery health status of the power battery can be obtained, and the difference between the current health status and the historical battery health status can be calculated. When the difference in battery health status is within a preset decay range, it is determined that the battery status of the power battery on the new energy vehicle is normal, thereby improving the accuracy of off-site battery monitoring.

[0086] Based on this, please refer to Figure 3 After step S10, the following steps are also included:

[0087] Step S201: When the energy replenishment request is a charging request, establish a communication connection channel with the new energy vehicle.

[0088] Step S202: Send a battery health status request to the new energy vehicle based on the communication connection channel, so that the new energy vehicle periodically sends the battery health status of the power battery.

[0089] Step S203: Construct a theoretical battery charging curve based on the battery health state.

[0090] Step S204: Monitor the actual charging curve of the power battery during the charging process.

[0091] Step S205: Calculate the deviation rate between the theoretical battery charging curve and the actual charging curve.

[0092] Step S206: Monitor the battery status of the power battery on the new energy vehicle according to the deviation rate.

[0093] It should be noted that, unlike the battery swapping mode, in the charging mode, since the power battery is inside the vehicle, it is difficult to read the battery number. In addition, the charging station is different from the battery swapping station, and the charging station cannot directly monitor the battery health status. In this embodiment, the actual charging curve of the power battery in the vehicle during the charging process can be monitored, and the actual charging curve can be compared with the theoretical battery charging curve. The battery status of the power battery in the new energy vehicle can be judged based on the magnitude of the deviation rate between the theoretical battery charging curve and the actual charging curve.

[0094] In addition, the theoretical battery charging curve can also be determined by the vehicle's historical charging records or the power battery state change set, and this embodiment does not impose specific restrictions on this.

[0095] Optionally, calculating the deviation rate between the theoretical battery charging curve and the actual charging curve includes:

[0096] Determine the critical charging moments in the theoretical battery charging curve;

[0097] Based on the critical charging moments, the theoretical battery charging curve is divided into multiple segments to obtain the theoretical battery charging curve.

[0098] Based on the critical charging moments, multiple segments of the actual battery charging curve are determined on the actual charging curve.

[0099] Calculate the deviation rate between each segment of the theoretical battery charging curve and each segment of the actual battery charging curve to obtain multiple deviation rates;

[0100] The multiple deviation rates are normalized to obtain the deviation rate between the theoretical battery charging curve and the actual charging curve.

[0101] In this embodiment, the deviation rate, a key indicator in the economic field, is innovatively applied to the battery swapping field to determine the health status of the battery. The formula for calculating the deviation rate is as follows:

[0102]

[0103] Where BIAS is the deviation rate, P is the actual power of multiple segments of the actual battery charging curve on the actual charging curve, and P1 is the theoretical charging power of multiple segments of the actual battery charging curve on the theoretical charging curve.

[0104] In practice, the key moments of charging can be several pre-defined power nodes based on the battery power, or they can be time nodes where the charging power fluctuates. The theoretical battery charging curve includes the charging power curve and the current power curve. The charging capacity of the battery varies under different temperature and pressure environments, and its charging power will also fluctuate due to the influence of the battery power. In order to accurately measure the deviation rate between the theoretical battery charging curve and the actual charging curve, the reliability of battery status monitoring can be improved.

[0105] This embodiment solves the problem of unmonitored battery status when the energy replenishment request is a charging request by establishing a communication connection channel with the new energy vehicle; sending a battery health status request to the new energy vehicle through the communication connection channel, so that the new energy vehicle periodically sends the battery health status of the power battery; constructing a theoretical battery charging curve based on the battery health status; monitoring the actual charging curve of the power battery during the charging process; calculating the deviation rate between the theoretical battery charging curve and the actual charging curve; and monitoring the battery status of the power battery on the new energy vehicle according to the deviation rate. This improves the reliability of battery status monitoring and solves the problem of unmonitored battery status when the power battery is charging off-site.

[0106] This application also provides a status monitoring device for off-site power batteries; please refer to... Figure 4 The off-site power battery status monitoring device includes:

[0107] The acquisition module 10 is used to acquire the vehicle identifier of the new energy vehicle and the theoretical battery pack attributes corresponding to the vehicle identifier in response to the energy replenishment request of the new energy vehicle.

[0108] The acquisition module 10 is also used to acquire the actual battery pack attributes of the new energy vehicle after the refueling of the new energy vehicle is completed.

[0109] The monitoring module 20 is used to monitor the battery status of the power battery on the new energy vehicle based on the theoretical battery pack attributes and the actual battery pack attributes.

[0110] This embodiment responds to a new energy vehicle's recharge request, obtains the vehicle identifier of the new energy vehicle and the theoretical battery pack attributes corresponding to the vehicle identifier; after the new energy vehicle completes recharge, it obtains the actual battery pack attributes of the new energy vehicle; based on the theoretical battery pack attributes and the actual battery pack attributes, it monitors the battery status of the power battery on the new energy vehicle. It queries the vehicle's theoretical battery pack attributes using the vehicle identifier of the new energy vehicle requesting recharge, and obtains the actual battery pack attributes after the new energy vehicle completes recharge. Therefore, based on the consistency between the actual and theoretical battery pack attributes, it monitors the power battery status, simplifies the power battery monitoring steps, improves monitoring efficiency, and avoids the technical problems of difficulty in tracing the status of swapped power batteries and the difficulty in monitoring battery status in existing technologies.

[0111] In one embodiment, the acquisition module 10 further includes: when the energy replenishment request is a battery swapping request, acquiring the actual battery number of the power battery in the new energy vehicle; when the actual battery number is inconsistent with the theoretical battery number, acquiring the historical energy replenishment record and historical battery health status of the new energy vehicle based on the vehicle identifier; tracing the abnormal battery period based on the historical energy replenishment record and the historical battery health status; and generating a battery early warning report based on the tracing result.

[0112] In one embodiment, the acquisition module 10 further includes: when the actual battery number matches the theoretical battery number, acquiring the current battery health status of the power battery; calculating the battery health status difference between the current health status and the historical battery health status; and determining that the battery status of the power battery in the new energy vehicle is normal when the battery health status difference is within a preset decay range.

[0113] In one embodiment, the acquisition module 10 further includes: establishing a communication connection channel with the new energy vehicle when the energy replenishment request is a charging request; sending a battery health status request to the new energy vehicle based on the communication connection channel, so that the new energy vehicle periodically sends the battery health status of the power battery; constructing a theoretical battery charging curve based on the battery health status; monitoring the actual charging curve of the power battery during the charging process; calculating the deviation rate between the theoretical battery charging curve and the actual charging curve; and monitoring the battery status of the power battery on the new energy vehicle according to the deviation rate.

[0114] In one embodiment, the acquisition module 10 further includes: determining key charging moments in the theoretical battery charging curve; dividing the theoretical battery charging curve into multiple segments based on the key charging moments; determining multiple segments of actual battery charging curves on the actual charging curve based on the key charging moments; calculating the deviation rate between each segment of the theoretical battery charging curve and each segment of the actual battery charging curve to obtain multiple deviation rates; and normalizing the multiple deviation rates to obtain the deviation rate between the theoretical battery charging curve and the actual charging curve.

[0115] In one embodiment, the acquisition module 10 further includes: acquiring the vehicle identifier of the new energy vehicle, and acquiring the historical charging records of the new energy vehicle based on the vehicle identifier; generating a power battery state change set of the new energy vehicle based on the historical charging records; and querying the theoretical battery pack attributes of the new energy vehicle through the power battery state change set.

[0116] This application provides a status monitoring device for off-site power batteries. The off-site power battery status monitoring device includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the off-site power battery status monitoring method in the above embodiment 1.

[0117] The following is for reference. Figure 5 This document illustrates a structural schematic diagram of an off-site power battery status monitoring device suitable for implementing embodiments of this application. The off-site power battery status monitoring device in this application embodiment may include, but is not limited to, mobile terminals such as mobile phones, laptops, digital radio receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Description), PMPs (Portable Media Players), and in-vehicle terminals (e.g., in-vehicle navigation terminals), as well as fixed terminals such as digital TVs and desktop computers. Figure 5 The off-site power battery status monitoring device shown is merely an example and should not impose any limitations on the functionality and scope of use of the embodiments of this application.

[0118] like Figure 5As shown, the off-site power battery status monitoring device may include a processing unit 1001 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 1002 or a program loaded from a storage device 1003 into a random access memory (RAM) 1004. The RAM 1004 also stores various programs and data required for the operation of the off-site power battery status monitoring device. The processing unit 1001, ROM 1002, and RAM 1004 are interconnected via a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Typically, the following systems can be connected to I / O interface 1006: input devices 1007 including, for example, touchscreens, touchpads, keyboards, mice, image sensors, microphones, accelerometers, gyroscopes, etc.; output devices 1008 including, for example, liquid crystal displays (LCDs), speakers, vibrators, etc.; storage devices 1003 including, for example, magnetic tapes, hard disks, etc.; and communication devices 1009. Communication device 1009 allows the off-site power battery status monitoring equipment to communicate wirelessly or wiredly with other devices to exchange data. Although the figure shows an off-site power battery status monitoring equipment with various systems, it should be understood that it is not required to implement or possess all the systems shown. More or fewer systems can be implemented alternatively.

[0119] Specifically, according to the embodiments disclosed in this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments disclosed in this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication device, or installed from storage device 1003, or installed from ROM 1002. When the computer program is executed by processing device 1001, it performs the functions defined in the methods of the embodiments disclosed in this application.

[0120] The off-site power battery status monitoring device provided in this application, employing the off-site power battery status monitoring method in the above embodiments, can solve the technical problem of off-site power battery status monitoring. Compared with the prior art, the beneficial effects of the off-site power battery status monitoring device provided in this application are the same as the beneficial effects of the off-site power battery status monitoring method provided in the above embodiments, and other technical features in the off-site power battery status monitoring device are the same as the features disclosed in the method of the previous embodiment, and will not be repeated here.

[0121] It should be understood that the various parts disclosed in this application can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0122] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0123] This application provides a computer-readable storage medium having computer-readable program instructions (i.e., a computer program) stored thereon, the computer-readable program instructions being used to execute the off-site power battery status monitoring method in the above embodiments.

[0124] The computer-readable storage medium provided in this application may be, for example, a USB flash drive, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, system, or device. The program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0125] The aforementioned computer-readable storage medium may be included in the off-site power battery status monitoring device; or it may exist independently and not be installed in the off-site power battery status monitoring device.

[0126] The aforementioned computer-readable storage medium carries one or more programs, which, when executed by the off-site power battery status monitoring device, enable the off-site power battery status monitoring device to monitor the status of the off-site power battery.

[0127] Computer program code for performing the operations of this application can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a Local Area Network (LAN) or a Wide Area Network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0128] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0129] The modules described in the embodiments of this application can be implemented in software or hardware. The names of the modules do not necessarily limit the functionality of the unit itself.

[0130] The readable storage medium provided in this application is a computer-readable storage medium that stores computer-readable program instructions (i.e., a computer program) for executing the above-described off-site power battery state monitoring method, thereby solving the technical problem of off-site power battery state monitoring. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in this application are the same as the beneficial effects of the off-site power battery state monitoring method provided in the above embodiments, and will not be repeated here.

[0131] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the off-site power battery status monitoring method described above.

[0132] The computer program product provided in this application can solve the technical problem of off-site power battery status monitoring. Compared with the prior art, the beneficial effects of the computer program product provided in this application are the same as the beneficial effects of the off-site power battery status monitoring method provided in the above embodiments, and will not be repeated here.

[0133] The above description is only a part of the embodiments of this application and does not limit the patent scope of this application. All equivalent structural transformations made under the technical concept of this application and using the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included in the patent protection scope of this application.

Claims

1. A method for monitoring the state of an off-site power battery, characterized in that, The method for monitoring the status of the off-site power battery includes: In response to a refueling request from a new energy vehicle, the vehicle identifier of the new energy vehicle and the theoretical battery pack attributes corresponding to the vehicle identifier are obtained. After the new energy vehicle finishes recharging, obtain the actual battery pack attributes of the new energy vehicle; Monitor the battery status of the power battery in the new energy vehicle based on the theoretical battery pack attributes and the actual battery pack attributes; When the energy replenishment request is a charging request, a communication connection channel is established with the new energy vehicle; Based on the communication connection channel, a battery health status request is sent to the new energy vehicle so that the new energy vehicle periodically sends the battery health status of the power battery. A theoretical battery charging curve is constructed based on the battery health state. Monitor the actual charging curve of the power battery during the charging process; Calculate the deviation rate between the theoretical battery charging curve and the actual charging curve; The battery status of the power battery on the new energy vehicle is monitored based on the deviation rate.

2. The off-site power battery status monitoring method as described in claim 1, characterized in that, The energy replenishment request includes: battery swapping request and charging request, and the battery pack attributes include at least: battery number and battery health status; The off-site power battery status monitoring method includes: When the energy replenishment request is a battery swapping request, the actual battery number of the power battery in the new energy vehicle is obtained; When the actual battery number is inconsistent with the theoretical battery number, the historical charging records and historical battery health status of the new energy vehicle are obtained based on the vehicle identifier. Based on the historical power replenishment records and the historical battery health status, trace the battery abnormality period; A battery early warning report is generated based on the traceability results.

3. The off-site power battery status monitoring method as described in claim 2, characterized in that, When the energy replenishment request is a battery swapping request, after obtaining the actual battery number of the power battery in the new energy vehicle, the process further includes: When the actual battery number matches the theoretical battery number, the current battery health status of the power battery is obtained; Calculate the battery health state difference between the current battery health state and the historical battery health state; When the difference in battery health status is within a preset attenuation range, the battery status of the power battery in the new energy vehicle is determined to be normal.

4. The off-site power battery status monitoring method as described in claim 1, characterized in that, The calculation of the deviation rate between the theoretical battery charging curve and the actual charging curve includes: Determine the critical charging moments in the theoretical battery charging curve; Based on the critical charging moments, the theoretical battery charging curve is divided into multiple segments to obtain the theoretical battery charging curve. Based on the critical charging moments, multiple segments of the actual battery charging curve are determined on the actual charging curve. Calculate the deviation rate between each segment of the theoretical battery charging curve and each segment of the actual battery charging curve to obtain multiple deviation rates; The multiple deviation rates are normalized to obtain the deviation rate between the theoretical battery charging curve and the actual charging curve.

5. The off-site power battery status monitoring method as described in claim 1, characterized in that, The step of obtaining the vehicle identifier of the new energy vehicle and the theoretical battery pack attributes corresponding to the vehicle identifier includes: Obtain the vehicle identifier of the new energy vehicle, and obtain the historical energy replenishment records of the new energy vehicle based on the vehicle identifier; Generate a set of power battery state changes for the new energy vehicle based on the historical recharge records; By using the set of power battery state changes, the theoretical battery pack attributes of the new energy vehicle can be queried.

6. A status monitoring device for off-site power batteries, characterized in that, The off-site power battery status monitoring device is applied to the off-site power battery status monitoring method as described in any one of claims 1 to 5, the device comprising: The acquisition module is used to acquire the vehicle identifier of the new energy vehicle and the theoretical battery pack attributes corresponding to the vehicle identifier in response to the energy replenishment request of the new energy vehicle. The acquisition module is also used to acquire the actual battery pack attributes of the new energy vehicle after the refueling of the new energy vehicle is completed; The monitoring module is used to monitor the battery status of the power battery in the new energy vehicle based on the theoretical battery pack attributes and the actual battery pack attributes.

7. A status monitoring device for off-site power batteries, characterized in that, The off-site power battery status monitoring device includes: a memory, a processor, and an off-site power battery status monitoring program stored in the memory and executable on the processor. The off-site power battery status monitoring program is configured to implement the off-site power battery status monitoring method as described in any one of claims 1 to 5.

8. A storage medium, characterized in that, The storage medium stores a status monitoring program for the off-site power battery, which, when executed by a processor, implements the status monitoring method for the off-site power battery as described in any one of claims 1 to 5.

9. A computer program product, characterized in that, The computer program product includes a computer program that, when executed by a processor, implements the steps of the off-site power battery status monitoring method as described in any one of claims 1 to 5.

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