Battery remote monitoring method and system and power supply equipment

Abstract

The invention discloses a battery remote monitoring method and system and power supply equipment, and relates to the technical field of battery management.The battery remote monitoring method comprises the steps that state data of a battery pack are obtained, and the state data comprise the voltage, the current, the battery cell temperature and the SOC of each single battery in the battery pack; when the state data of the battery pack exceeds a first preset threshold value and does not exceed a second preset threshold value, storing the state data exceeding the first preset threshold value as alarm data, and outputting an alarm signal to a remote server; and when the state data of the battery pack exceeds a second preset threshold value, storing the state data exceeding the second preset threshold value as fault data, and outputting a fault signal to a remote server. According to the technical scheme of the invention, the problem that a battery system in the prior art cannot remotely obtain the state information of the battery pack and cannot prevent and process the fault of the battery pack can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery management, and in particular to a battery remote monitoring method, system and power supply equipment. Background Art

[0002] At present, battery systems that use multiple battery cells in series and parallel to form a battery pack as a power source are widely used in people's production and life. However, the existing battery pack BMS (battery management system) mostly focuses on protection when a fault occurs, rather than prevention or early intervention. In addition, when an abnormality occurs in the battery pack, maintenance personnel need to conduct on-site inspections to obtain specific battery pack status information, and are unable to handle and control the abnormality of the battery pack in a timely manner.

[0003] Therefore, the battery system in the prior art cannot remotely obtain the status information of the battery pack, and preventing and handling the failure of the battery pack is a problem that needs to be solved. Summary of the invention

[0004] The main purpose of the present invention is to provide a battery remote monitoring method, system and power supply equipment, aiming to solve the problem in the prior art that the battery system cannot remotely obtain the status information of the battery pack and prevent and handle the failure of the battery pack.

[0005] To achieve the above object, the present invention provides a battery remote monitoring system, the method comprising:

[0006] Acquire status data of the battery pack, wherein the status data includes voltage, current, cell temperature and SOC of each battery cell in the battery pack;

[0007] When the status data of the battery pack exceeds a first preset threshold value and does not exceed a second preset threshold value, an alarm signal is output to a remote server, wherein the first preset threshold value is less than the second preset threshold value;

[0008] When the status data of the battery pack exceeds a second preset threshold, a fault signal is output to a remote server.

[0009] In one embodiment, the status data of the battery pack further includes the total voltage of the battery pack, the total current of the battery pack and the ambient temperature of the battery pack, and the step of obtaining the status data of the battery pack includes:

[0010] Obtain the total voltage, total current, ambient temperature of the battery pack and the voltage, current, cell temperature and SOC of each battery cell in the battery pack.

[0011] In one embodiment, after the step of obtaining the status data of the battery pack, the method further includes:

[0012] When the status data of the battery pack does not exceed a first preset threshold, storing the status data that does not exceed the first preset threshold as normal data;

[0013] The normal data is uploaded to the remote server at a first preset period.

[0014] In one embodiment, after the step of obtaining the status data of the battery pack, the method further includes:

[0015] The state data exceeding the first preset threshold and not exceeding the second preset threshold is stored as warning data, and the state data exceeding the second preset threshold is stored as fault data;

[0016] The alarm data and the fault data are uploaded to a remote server in real time.

[0017] In one embodiment, the step of uploading the alarm data and the fault data to the remote server in real time includes:

[0018] Every time the fault data of a preset number of times is uploaded to the remote server, the fault data stored for all time is uploaded to the remote server.

[0019] To achieve the above object, the present invention further provides a battery remote monitoring system, which is applied to the battery remote monitoring method as described above, and is characterized in that the battery remote monitoring system comprises:

[0020] A battery management system connected to each battery cell in the battery pack, the battery management system is used to obtain status data of the battery pack, wherein the status data includes voltage, current, cell temperature and SOC of each battery cell in the battery pack; when the status data of the battery pack exceeds a first preset threshold value and does not exceed a second preset threshold value, an alarm signal is output to a remote server, wherein the first preset threshold value is less than the second preset threshold value; when the status data of the battery pack exceeds the second preset threshold value, a fault signal is output to the remote server;

[0021] a remote server, the remote server being wirelessly connected to the battery management system, and configured to receive and store status data of the battery pack, and receive an alarm signal and / or a fault signal output by the battery management system; and

[0022] A monitoring terminal is wirelessly connected to the remote server, and is used to receive and store the status data of the battery pack transmitted by the remote server, and receive the alarm signal and / or fault signal for display.

[0023] In one embodiment, the battery management system is further used to obtain the main power supply voltage of the battery management system, the collection power supply voltage, and the charge and discharge status of the battery pack.

[0024] In one embodiment, the battery management system includes:

[0025] A collection module, wherein a collection end of the collection module is connected to the battery pack, and the collection module is used to collect status data of the battery pack;

[0026] A communication bus module, the input end of which is connected to the output end of the acquisition module, and is used to transmit the status data of the battery pack acquired by the acquisition module;

[0027] A processor module, the processor being connected to an output end of the communication bus module and configured to receive status data of the battery pack;

[0028] A clock module, the output end of which is connected to the processor module and is used for real-time updating and storage of system date and time;

[0029] A data storage module, the data storage module is communicatively connected with the processor module and is used to store status data of the battery pack;

[0030] A wireless communication module, wherein an input end of the wireless communication module is connected to the processor module, and the wireless communication module is wirelessly connected to the remote server, for realizing wireless communication between the processor module and the remote server.

[0031] In one embodiment, the remote server comprises:

[0032] A remote communication module, which is wirelessly connected to the battery management system and is used to implement wireless communication between the remote server and the battery management system and wireless communication between the remote server and the monitoring terminal;

[0033] a data cache module, wherein an input end of the data cache module is communicatively connected to an output end of the remote communication module, and the data cache module is used to receive and cache status data of the battery pack, and receive an alarm signal and / or a fault signal output by the battery management system;

[0034] A storage control module, wherein the input end of the storage control module is connected to the output end of the data cache module, the output end of the storage control module is connected to the input end of the remote communication module, and the storage control module is used to receive the status data cached by the data cache module and output it in a classified manner;

[0035] A database module is communicatively connected with the storage control module and is used to receive and store the status data of the battery pack output by the storage control module.

[0036] In addition, to achieve the above-mentioned purpose, the present invention further provides a power supply device, which includes the battery remote monitoring system as described above.

[0037] The present invention provides a battery remote monitoring method, which realizes comprehensive monitoring of the operating status of the battery pack by acquiring key status data such as voltage, current, cell temperature and SOC of each battery cell in the battery pack in real time; and sets a first preset threshold value and a second preset threshold value, and takes different levels of response measures according to the different thresholds exceeded by the status data, and realizes remote monitoring of the battery pack by outputting alarm signals and fault signals to a remote server. This remote monitoring capability allows managers to grasp the real-time status of the battery pack without having to visit the site in person, respond to and handle abnormal situations in a timely manner, and prevent and handle battery pack failures. Therefore, the technical solution of the present invention solves the problem that the battery system in the prior art cannot remotely obtain the status information of the battery pack and prevent and handle battery pack failures. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0039] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0040] Figure 1 A schematic diagram of a flow chart of a battery remote monitoring method according to an embodiment of the present invention;

[0041] Figure 2 A schematic diagram of a flow chart of a battery remote monitoring method in another embodiment of the present invention;

[0042] Figure 3 A schematic diagram of a flow chart of a battery remote monitoring method in another embodiment of the present invention;

[0043] Figure 4 A schematic diagram of a flow chart of a battery remote monitoring method in yet another embodiment of the present invention;

[0044] Figure 5 A schematic diagram of a flow chart of a battery remote monitoring method in another embodiment of the present invention;

[0045] Figure 6 A schematic diagram of the module structure of a battery remote monitoring system in one embodiment of the present invention;

[0046] Figure 7 A schematic diagram of the module structure of a battery remote monitoring system in another embodiment of the present invention;

[0047] Figure 8 A schematic diagram of the module structure of a communication bus module of a battery remote monitoring system in one embodiment of the present invention;

[0048] Fig. 9 This is a schematic diagram of the module structure of a remote server of a battery remote monitoring system in one embodiment of the present invention;

[0049] Fig.10 A schematic diagram of a monitoring interface of a battery remote monitoring system in one embodiment of the present invention;

[0050] Description of Figure Numbers:

[0051] 10. Battery pack; 20. Battery management system; 21. Acquisition module; 22. Communication bus module;

[0052] 23. Processor module; 24. Clock module; 25. Data storage module; 26. Wireless communication module; 30. Remote server; 31. Remote communication module; 32. Data cache module; 33. Storage control module; 34. Database module; 40. Monitoring terminal.

[0053] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments. DETAILED DESCRIPTION

[0054] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present invention and are not used to limit the present invention.

[0055] In order to better understand the technical solution of the present invention, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0056] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0057] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0058] The main solution of the present application is: to obtain the status data of the battery pack, wherein the status data includes the voltage, current, cell temperature and SOC of each battery cell in the battery pack; when the status data of the battery pack exceeds a first preset threshold value and does not exceed a second preset threshold value, an alarm signal is output to a remote server, wherein the first preset threshold value is less than the second preset threshold value; when the status data of the battery pack exceeds the second preset threshold value, a fault signal is output to the remote server.

[0059] At present, battery systems that use multiple battery cells connected in series and parallel to form a battery pack as a power source are widely used in people's production and life. However, the BMS (battery management system) of existing battery packs mostly focuses on protection when a fault occurs, rather than prevention or early intervention. In addition, when an abnormality occurs in the battery pack, maintenance personnel need to conduct on-site inspections to obtain specific battery pack status information, and are unable to handle and control the abnormality of the battery pack in time. Therefore, the battery system in the prior art cannot remotely obtain the status information of the battery pack, and preventing and handling the failure of the battery pack is a problem that needs to be solved.

[0060] This application monitors the voltage, current, cell temperature and SOC of each cell in the battery pack in real time, and sets two-level thresholds for graded alarm and fault handling. When the first threshold is exceeded, the alarm data is stored and a remote alarm is issued, and when the second threshold is exceeded, the fault data is recorded and a remote alarm is issued, which solves the problem that the battery system in the prior art cannot remotely obtain the status information of the battery pack and prevent and handle the fault of the battery pack.

[0061] A battery remote monitoring system refers to a system that can detect, save and diagnose faults of a battery pack's status data in real time. It is usually composed of a battery pack including multiple battery cells, a battery management system that acquires the battery pack's status data and issues fault warnings, a remote server for recording the battery pack's status data and performing remote signal transmission, and a monitoring terminal for displaying fault alarm information. The battery pack can be composed of single cells connected in series and parallel, and the single cells are lithium batteries.

[0062] It should be noted that the execution subject of this embodiment can be a battery management system in a battery remote monitoring system, or a computing service device with data processing, network communication and program running functions, such as a tablet computer, a personal computer, a mobile phone, etc., or a power supply device capable of realizing the above functions, etc., and this embodiment does not specifically limit this. The following takes the battery management system as an example to illustrate this embodiment and the following embodiments.

[0063] Based on this, see Figure 1 , an embodiment of the present invention provides a battery remote monitoring method, the method comprising steps S10 to S30:

[0064] Step S10, obtaining status data of the battery pack, wherein the status data includes voltage, current, cell temperature and SOC of each battery cell in the battery pack;

[0065] It should be noted that by acquiring key status data such as voltage, current, cell temperature and SOC (State of Charge) of each battery cell in the battery pack in real time, comprehensive monitoring of the battery pack operation status is achieved. This real-time monitoring can detect potential problems in a timely manner, effectively prevent safety accidents caused by battery failure, and improve the safety and reliability of the system.

[0066] Step S20, when the status data of the battery pack exceeds a first preset threshold value and does not exceed a second preset threshold value, an alarm signal is output to a remote server, wherein the first preset threshold value is less than the second preset threshold value;

[0067] It should be noted that if the status data of the battery pack is within the first preset threshold range, it indicates that the battery pack is in normal working condition. If the status data of the battery pack exceeds the first preset threshold, it indicates that the battery pack is abnormal. When it exceeds the first preset threshold but does not exceed the second preset threshold, an alarm is issued for the abnormality of the battery pack, and an alarm signal is sent to the remote server, which is then sent by the remote server to the monitoring terminal. The monitoring terminal prompts users and remote maintenance personnel of the abnormal status of the battery pack, and pre-processes it before a fault occurs to prevent the condition from deteriorating.

[0068] Step S30: When the status data of the battery pack exceeds a second preset threshold, a fault signal is output to a remote server.

[0069] It should be noted that if the status data of the battery pack exceeds the second preset threshold, it indicates that the battery pack has failed and needs to stop working and be repaired. A fault signal is sent to the remote server, which then sends it to the monitoring terminal. The monitoring terminal prompts users and remote maintenance personnel of the fault status of the battery pack and displays the fault data, saving maintenance personnel from on-site manual troubleshooting, thereby improving maintenance efficiency and reducing fault handling costs.

[0070] This embodiment provides a battery remote monitoring method, which realizes comprehensive monitoring of the operating status of the battery pack by acquiring key status data such as voltage, current, cell temperature and SOC of each battery cell in the battery pack in real time. This real-time monitoring can timely discover potential problems, effectively prevent safety accidents caused by battery failure, and improve the safety and reliability of the system; by setting the first preset threshold and the second preset threshold, different levels of response measures are taken according to the different thresholds exceeded by the status data. When the data exceeds the first preset threshold but does not reach the second preset threshold, it is regarded as an alarm state, and an alarm signal is sent to the remote server, which is transmitted to the monitoring terminal through the remote server, and the monitoring terminal reminds the fault maintenance personnel and users to pay attention and take preliminary treatment measures. When the data exceeds the second preset threshold, it is regarded as a fault state, and a fault signal is sent to the remote server, which is transmitted to the monitoring terminal through the remote server, and the monitoring terminal reminds the fault maintenance personnel and users to immediately troubleshoot and repair the fault. This hierarchical processing mechanism helps to efficiently manage the health status of the battery pack. By outputting alarm signals and fault signals to the remote server, remote monitoring of the battery pack is realized. This remote monitoring capability allows managers to understand the real-time status of the battery pack without having to visit the site in person, and respond and handle abnormal situations in a timely manner, improving management efficiency and response speed. The entire process relies on automated data collection, processing, analysis and response mechanisms, which significantly improves the intelligence level of the battery management system, can better ensure the safe operation of the battery pack, extend its service life, and reduce maintenance costs.

[0071] See also Figure 2 In one embodiment of the present invention, the battery pack status data further includes the battery pack total voltage, the battery pack total current and the battery pack ambient temperature. The step S10: obtaining the battery pack status data includes the step S11:

[0072] Step S11, obtaining the total voltage, total current, ambient temperature of the battery pack and the voltage, current, cell temperature and SOC of each battery cell in the battery pack.

[0073] It should be noted that the total voltage of the battery pack reflects the overall voltage level of the battery pack and is an important indicator of the output power capacity of the battery pack. For a battery pack connected in series, the total voltage is the sum of the voltages of individual batteries. By monitoring the total voltage, it is possible to determine whether the battery pack as a whole is in the normal operating range, and whether there is overcharging or over-discharging, which helps to promptly detect and prevent battery damage or safety accidents; the total current of the battery pack can indicate the current size and direction of the battery pack during the charging and discharging process. By monitoring the total current, the real-time load of the battery pack can be understood to determine whether the battery pack has short circuits or overloads. At the same time, the current size is also an important basis for controlling the thermal management of the battery pack and optimizing the charging and discharging strategy; the ambient temperature of the battery pack has a significant impact on the performance of the battery pack. Excessive ambient temperature will accelerate battery aging, reduce battery life and safety; low temperature may cause the battery discharge capacity to decrease, or even fail to work properly. By monitoring the ambient temperature of the battery pack, adjusting the charging and discharging strategy according to temperature changes, and strengthening heat dissipation or insulation measures, the normal operation of the battery pack can be guaranteed.

[0074] See also Figure 3 In one embodiment of the present invention, after the step S10: obtaining the status data of the battery pack, the method further includes steps A10 to A20:

[0075] Step A10, when the status data of the battery pack does not exceed the first preset threshold, storing the status data that does not exceed the first preset threshold as normal data;

[0076] Step A20, uploading the normal data to the remote server at a first preset period.

[0077] It should be noted that if the status data of the battery pack is within the first preset threshold range, it indicates that the battery pack is in a normal working state.

[0078] By continuously collecting and storing the normal status data of the battery pack, a benchmark data set can be formed. This data set can be used for subsequent performance analysis and optimization. For example, the performance of the battery pack under different working conditions can be analyzed to find out the key factors affecting the performance, and the charging and discharging strategy, thermal management strategy, etc. can be adjusted accordingly to improve the overall performance and efficiency of the battery pack. The stored normal data provides rich information support for fault maintenance personnel. In fault maintenance work such as troubleshooting and performance evaluation, fault maintenance personnel can quickly review relevant data to understand the operating status and historical performance of the battery pack, so as to more accurately locate problems and develop solutions. This helps to improve the efficiency of fault maintenance and reduce the cost of fault maintenance.

[0079] See also Figure 4 In one embodiment of the present invention, the step S10: obtaining the status data of the battery pack: thereafter, the method further includes steps B10 to B20:

[0080] Step B10, storing the status data exceeding the first preset threshold and not exceeding the second preset threshold as warning data, and storing the status data exceeding the second preset threshold as fault data;

[0081] Step B20, uploading the alarm data and the fault data to a remote server in real time.

[0082] The system will store both alarm data and fault data, which provides an important basis for subsequent data analysis. By analyzing historical data, the trend of battery pack performance degradation and the law of fault occurrence can be identified, providing strong support for optimizing battery management strategies and extending battery life.

[0083] It should be noted that the first preset period may be 30 seconds or a reasonable duration that can take into account the timeliness of data upload without causing congestion in the data transmission channel, and this embodiment does not make any specific limitation on this.

[0084] In this embodiment, for the normal data obtained under the normal working state of the battery pack, the battery management system will upload it to the remote server for storage in the first preset period. Under the normal working state, the data change of the battery pack is relatively stable, and there is no emergency that needs to be handled immediately. Therefore, uploading normal data in a preset period can reduce the frequency of data transmission, reduce the network burden, and optimize the efficiency of data transmission. At the same time, this also provides sufficient time for the remote server to process and analyze these data; for the alarm data and the fault data obtained under the abnormal state of the battery pack, they are uploaded to the remote server in real time. Uploading these data in real time can ensure that the remote server can receive and transmit them to the monitoring terminal in time, which helps the fault maintenance personnel to quickly locate the problem and assess the risk through the alarm data and fault data in time, and take corresponding measures to prevent the expansion of the fault or the occurrence of a safety accident. In addition, after the remote server receives and stores the normal data and abnormal data of the battery pack, the battery remote monitoring and diagnosis system can be used to perform real-time or scheduled inspections on the battery pack, and the fault maintenance personnel can understand the operating status and performance of the battery pack without going to the site, thereby improving the efficiency and convenience of battery pack fault maintenance.

[0085] See also Figure 5 In one embodiment of the present invention, the step B20: uploading the alarm data and the fault data to the remote server in real time includes step B21:

[0086] Step B21, when uploading the fault data of a preset number of times to the remote server, uploading the fault data stored for all time to the remote server.

[0087] It should be noted that the preset number of times may be 30 times or a reasonable interval number that can take into account the timeliness of data upload and does not cause congestion in the data transmission channel, and this embodiment does not make any specific limitation to this.

[0088] In this embodiment, by uploading the fault data for a preset number of times, the fault data stored for all time will be uploaded to the remote server, which can ensure that the remote server can obtain a complete fault history record. A complete fault history record is of great significance for subsequent fault analysis. Through in-depth analysis of historical fault data, potential fault trends can be discovered, common fault modes can be identified, and preventive and maintenance measures can be formulated accordingly to improve the reliability and stability of the system.

[0089] See also Figure 6 The present invention also provides a battery remote monitoring system, which is applied to the battery remote monitoring method as described above, and is characterized in that the battery remote monitoring system comprises:

[0090] A battery management system 20 is connected to each battery cell in the battery pack 10, and the battery management system 20 is used to obtain status data of the battery pack 10, wherein the status data includes the voltage, current, cell temperature and SOC of each battery cell in the battery pack 10; when the status data of the battery pack 10 exceeds a first preset threshold value and does not exceed a second preset threshold value, an alarm signal is output to the remote server 30, wherein the first preset threshold value is less than the second preset threshold value; when the status data of the battery pack 10 exceeds the second preset threshold value, a fault signal is output to the remote server 30;

[0091] A remote server 30, the remote server 30 is wirelessly connected to the battery management system 20, and is used to receive and store the status data of the battery pack 10, and receive the alarm signal and / or fault signal output by the battery management system 20; and

[0092] The monitoring terminal 40 is wirelessly connected to the remote server 30, and is used to receive and store the status data of the battery pack 10 transmitted by the remote server 30, and receive the alarm signal and / or fault signal for display.

[0093] It should be noted that the battery pack 10 can be a battery pack 10 composed of multiple lithium battery cells connected in series and parallel, and the battery management system 20 (BMS) can be a battery protection board for monitoring, controlling and protecting the battery pack 10. The battery management system 20 can detect key parameters such as voltage, current, temperature and SOC (battery remaining power percentage) of the battery pack 10 in real time, and accurately control the charging and discharging process of the battery pack 10 based on these data to ensure the safety, reliability and life of the battery pack 10.

[0094] The remote server 30 can be a server device that supports network communication and data processing functions, and is wirelessly connected to the battery management system 20 and the monitoring terminal 40. The wireless communication connection can be a WiFi or Bluetooth connection, or a TCP / IP network connection, which is not specifically limited in this embodiment.

[0095] The monitoring terminal 40 may be a terminal device with display and data processing functions, such as a computer, a tablet computer, a smart phone, etc. These devices can receive data and signals transmitted by the remote server 30 by installing corresponding monitoring software or applications, and display them to the fault maintenance personnel. For example, the monitoring terminal 40 can display the voltage, current, temperature, SOC and other parameters of the battery pack 10, and issue an audible and visual alarm when an abnormality occurs.

[0096] The battery remote monitoring and diagnosis system collects the status data of the battery pack 10 in real time through the battery management system 20, and determines abnormal conditions according to preset thresholds; remote storage and data query are implemented through the remote server 30, so that data synchronization is implemented between the monitoring terminal 40 and the battery management system 20, and abnormal data of the battery pack 10 is displayed and alarmed in real time through the monitoring terminal 40, notifying the fault maintenance personnel to perform fault diagnosis and repair of the battery pack 10 in a timely manner. Therefore, the battery remote monitoring system provided by the embodiment of the present invention can enable management personnel to grasp the real-time status of the battery pack 10 without having to visit the site in person, respond to and handle abnormal conditions in a timely manner, and prevent and handle faults of the battery pack 10. It solves the problem that the battery system in the prior art cannot remotely obtain the status information of the battery pack 10 and prevent and handle faults of the battery pack 10.

[0097] In one embodiment of the present invention, the battery management system 20 is further used to obtain the main power supply voltage of the battery management system 20 , the collection power supply voltage, and the charge and discharge status of the battery pack 10 .

[0098] It should be noted that the main power supply voltage is the voltage for supplying power to the battery management system 20, and the acquisition power supply voltage is the power supply voltage required by the battery management system 20 for collecting the status data of the battery pack 10. As an example, the main power supply voltage can be 12V, and the acquisition power supply voltage is 5V. The specific values ​​depend on the hardware design of the battery management system 20 in actual applications. As long as the normal operation of the battery management system 20 can be guaranteed, the specific parameters are not limited in this embodiment. The charging and discharging status of the battery pack 10 includes the charging relay status of the battery pack 10 (the voltage before and after the relay), the charging signal (to determine the voltage, current, power and charger specifications of the charging input), the pre-charge state of the discharge relay, the short circuit of the battery pack 10, the low-voltage long-term non-charging record, and the low-power storage (low SOC) time.

[0099] In this embodiment, the battery management system 20 not only monitors the voltage, current, temperature, SOC and other data of the battery pack 10, but also monitors its own power supply voltage and the relay, charging and discharging status of the battery pack 10, providing a strong guarantee for the safe and efficient operation of the battery pack 10.

[0100] See also Figure 7 In one embodiment of the present invention, the battery management system 20 includes:

[0101] A collection module 21, wherein a collection end of the collection module 21 is connected to the battery pack 10, and the collection module 21 is used to collect status data of the battery pack 10;

[0102] A communication bus module 22, the input end of the communication bus module 22 is connected to the output end of the acquisition module 21, and is used to transmit the status data of the battery pack 10 acquired by the acquisition module 21;

[0103] A processor module 23, the processor is connected to the output end of the communication bus module and is used to receive status data of the battery pack 10;

[0104] A clock module 24, the output end of which is connected to the processor module 23, for real-time updating and storage of system date and time;

[0105] A data storage module 25, the data storage module 25 is communicatively connected with the processor module 23 and is used to store status data of the battery pack 10;

[0106] The wireless communication module 26 has an input end connected to the processor module 23 , and the wireless communication module 26 is wirelessly connected to the remote server 30 , so as to realize wireless communication between the processor module 23 and the remote server 30 .

[0107] It should be noted that the acquisition end of the acquisition module 21 is directly connected to the battery pack 10 and is responsible for real-time acquisition of the status data of the battery pack 10. These data include but are not limited to key parameters such as the voltage, current, cell temperature, and SOC (battery remaining power percentage) of each battery cell in the battery pack 10. The acquisition module 21 realizes accurate data acquisition through high-precision sensors and analog-to-digital converters (ADCs), and converts the collected data into digital signals for subsequent module processing.

[0108] The communication bus module 22 is responsible for efficiently and reliably transmitting the battery pack 10 status data collected by the acquisition module 21 to the subsequent processing module. The communication bus module 22 usually adopts standard communication protocols and interfaces, such as RS-485, CAN bus, etc., to ensure the stability and compatibility of data transmission. As an example, please refer to Figure 8 The communication bus module 22 includes an RS-485 bus communication unit, a CAN bus communication unit and a switch unit. The processor module 23 controls the switch module to select one of the RS485 bus communication unit and the CAN bus communication unit to transmit different types of battery pack 10 status data. For example, the SOC of the battery pack 10 is often transmitted through the RS485 bus communication unit, while other status data is transmitted through the CAN bus.

[0109] The processor module 23 may be a single chip microcomputer, MCU or other processing chip, which is responsible for receiving the status data of the battery pack 10 , performing preliminary processing and analysis, and then outputting the data to the remote server 30 via the wireless communication module 26 .

[0110] The clock module 24 may be a high-precision crystal oscillator or atomic clock, which is responsible for providing the system with accurate date and time information. The clock module 24 can update the system time in real time and save historical time data for subsequent data analysis and troubleshooting.

[0111] The data storage module 25 may use a non-volatile memory such as FLASH or EEPROM, which is responsible for storing the status data of the battery pack 10 and other important information during the operation of the system, and backing up the normal data, alarm data and fault data of the battery pack 10 to prevent the loss of the obtained status data of the battery pack 10 when the server cannot be connected. This not only facilitates the user's access to fault data, but also provides a valuable basis for subsequent fault diagnosis, performance analysis and system optimization.

[0112] The wireless communication module 26 is responsible for realizing wireless communication between the processor module 23 and the remote server 30. The wireless communication can be a WiFi or Bluetooth connection, or a TCP / IP network connection, which is not specifically limited in this embodiment. The wireless communication module 26 uploads the data processed by the processor module 23, as well as the alarm signal and the fault signal to the remote server 30, and receives the control instructions and configuration information issued by the remote server 30 and transmits them to the processor module 23.

[0113] See also Fig. 9 In one embodiment of the present invention, the remote server 30 includes:

[0114] A remote communication module 31, the remote communication module 31 is wirelessly connected to the battery management system 20, and is used to realize wireless communication between the remote server 30 and the battery management system 20 and wireless communication between the remote server 30 and the monitoring terminal 40;

[0115] a data cache module 32, wherein an input end of the data cache module 32 is communicatively connected to an output end of the remote communication module 31, and the data cache module 32 is used to receive and cache status data of the battery pack 10, and receive an alarm signal and / or a fault signal output by the battery management system 20;

[0116] A storage control module 33, wherein the input end of the storage control module 33 is connected to the output end of the data cache module 32, and the output end of the storage control module 33 is connected to the input end of the remote communication module 31, and the storage control module 33 is used to receive the status data cached by the data cache module 32 and output it in a classified manner;

[0117] The database module 34 is in communication with the storage control module 33 and is used to receive and store the status data of the battery pack 10 output by the storage control module 33 .

[0118] It can be understood that the remote communication module 31 is a bridge for wireless communication between the remote server 30 and the battery management system 20 and the monitoring terminal 40, ensuring the reliable transmission of data between different devices. The wireless communication can be a WiFi or Bluetooth connection, or a TCP / IP network connection, which is not specifically limited in this embodiment. The remote communication module 31 is not only responsible for receiving the battery pack 10 status data, alarm signals and fault signals sent by the battery management system 20. At the same time, it also provides a data wireless communication connection with the monitoring terminal 40 to realize the functions of remote monitoring and alarm. The data cache module 32 is used to receive the status data of the battery pack 10 uploaded by the battery management system 20, and cache it in the memory. The received status data is classified by the storage control module 33 and stored in the corresponding position of the non-volatile memory in the database module 34.

[0119] In summary, the various modules of the remote server 30 work together to realize the remote monitoring, processing, storage and forwarding functions of the operating status of the battery pack 10. Through the remote server 30, the fault maintenance personnel can understand the operating status of the battery pack 10 in real time, discover and deal with potential problems in time, and ensure the safe and efficient operation of the battery system.

[0120] For example, in order to help understand the technical concept or technical principle of the battery remote monitoring system after the present embodiment is combined with the above-mentioned embodiment, please refer to Fig.10 , Fig.10 A schematic diagram of a monitoring instance interface of a battery remote monitoring system is provided.

[0121] It should be noted that the above examples are only used to assist in understanding the present invention and do not constitute a limitation on the battery remote monitoring system of the present invention. More simple transformations based on this technical concept are all within the protection scope of this application.

[0122] An embodiment of the present invention provides a power supply device, wherein the power supply device includes the battery remote monitoring system as described above.

[0123] Technical problems that can be solved by the power supply device provided by the embodiment of the present invention Compared with the prior art, the beneficial effects of the power supply device provided by the embodiment of the present invention are the same as the beneficial effects of the battery remote monitoring system provided by the above embodiment, which will not be repeated here.

[0124] The above are only optional embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent scope of the present invention.

Claims

1. A battery remote monitoring method, characterized in that: The method comprises: Acquire status data of the battery pack, wherein the status data includes voltage, current, cell temperature and SOC of each battery cell in the battery pack; When the status data of the battery pack exceeds a first preset threshold value and does not exceed a second preset threshold value, an alarm signal is output to a remote server, wherein the first preset threshold value is less than the second preset threshold value; When the status data of the battery pack exceeds a second preset threshold, a fault signal is output to a remote server.

2. The method according to claim 1, characterized in that The battery pack status data also includes the battery pack total voltage, the battery pack total current and the battery pack ambient temperature. The step of obtaining the battery pack status data includes: Obtain the total voltage, total current, ambient temperature of the battery pack and the voltage, current, cell temperature and SOC of each battery cell in the battery pack.

3. The method according to claim 1, characterized in that After the step of acquiring the status data of the battery pack, the method further includes: When the status data of the battery pack does not exceed a first preset threshold, storing the status data that does not exceed the first preset threshold as normal data; The normal data is uploaded to the remote server at a first preset period.

4. The method according to claim 1, characterized in that After the step of acquiring the status data of the battery pack, the method further includes: The state data exceeding the first preset threshold and not exceeding the second preset threshold is stored as warning data, and the state data exceeding the second preset threshold is stored as fault data; The alarm data and the fault data are uploaded to a remote server in real time.

5. The method according to claim 4, characterized in that The step of uploading the alarm data and the fault data to the remote server in real time includes: Every time the fault data of a preset number of times is uploaded to the remote server, the fault data stored for all time is uploaded to the remote server.

6. A battery remote monitoring system, applied to the battery remote monitoring method according to any one of claims 1 to 5, characterized in that: The battery remote monitoring system comprises: A battery management system connected to each battery cell in the battery pack, the battery management system is used to obtain status data of the battery pack, wherein the status data includes voltage, current, cell temperature and SOC of each battery cell in the battery pack; when the status data of the battery pack exceeds a first preset threshold value and does not exceed a second preset threshold value, an alarm signal is output to a remote server, wherein the first preset threshold value is less than the second preset threshold value; when the status data of the battery pack exceeds the second preset threshold value, a fault signal is output to the remote server; a remote server, the remote server being wirelessly connected to the battery management system, and configured to receive and store status data of the battery pack, and receive an alarm signal and / or a fault signal output by the battery management system; and A monitoring terminal is wirelessly connected to the remote server, and is used to receive and store the status data of the battery pack transmitted by the remote server, and receive the alarm signal and / or fault signal for display.

7. The battery remote monitoring system according to claim 6, characterized in that: The battery management system is also used to obtain the main power supply voltage of the battery management system, the collection power supply voltage, and the charge and discharge status of the battery pack.

8. The battery remote monitoring system according to claim 6, characterized in that: The battery management system comprises: A collection module, wherein a collection end of the collection module is connected to the battery pack, and the collection module is used to collect status data of the battery pack; A communication bus module, the input end of which is connected to the output end of the acquisition module, and is used to transmit the status data of the battery pack acquired by the acquisition module; A processor module, the processor being connected to an output end of the communication bus module and configured to receive status data of the battery pack; A clock module, the output end of which is connected to the processor module and is used for real-time updating and storage of system date and time; A data storage module, the data storage module is communicatively connected with the processor module and is used to store status data of the battery pack; A wireless communication module, wherein an input end of the wireless communication module is connected to the processor module, and the wireless communication module is wirelessly connected to the remote server, for realizing wireless communication between the processor module and the remote server.

9. The battery remote monitoring system according to claim 7, characterized in that: The remote server comprises: A remote communication module, which is wirelessly connected to the battery management system and is used to implement wireless communication between the remote server and the battery management system and wireless communication between the remote server and the monitoring terminal; a data cache module, wherein an input end of the data cache module is communicatively connected to an output end of the remote communication module, and the data cache module is used to receive and cache status data of the battery pack, and receive an alarm signal and / or a fault signal output by the battery management system; A storage control module, wherein the input end of the storage control module is connected to the output end of the data cache module, the output end of the storage control module is connected to the input end of the remote communication module, and the storage control module is used to receive the status data cached by the data cache module and output it in a classified manner; A database module is communicatively connected with the storage control module and is used to receive and store the status data of the battery pack output by the storage control module.

10. A power supply device, characterized in that: The power supply device comprises the battery remote monitoring system according to any one of claims 6 to 9.

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