CN120049036A - Battery expansion force real-time monitoring system based on multidimensional sensor - Google Patents
Battery expansion force real-time monitoring system based on multidimensional sensor Download PDFInfo
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- CN120049036A CN120049036A CN202510239629.XA CN202510239629A CN120049036A CN 120049036 A CN120049036 A CN 120049036A CN 202510239629 A CN202510239629 A CN 202510239629A CN 120049036 A CN120049036 A CN 120049036A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a battery expansion force real-time monitoring system based on a multidimensional sensor, and relates to the technical field of batteries. The battery expansion force real-time monitoring system based on the multidimensional sensor comprises a sensor module, wherein a data acquisition module is connected with signal transmission of the sensor module, a data transmission module is connected with signal transmission of the data acquisition module, and a data processing module is connected with signal transmission of the data transmission module. The battery expansion force real-time monitoring system based on the multidimensional sensor fuses pressure, strain and temperature sensors, acquires battery state information from different angles, avoids the limitation of a single sensor, can reflect the real expansion condition of a battery more comprehensively, is characterized in that the pressure sensor is arranged at a key position of a battery shell, the strain sensor is stuck to different positions on the surface of the battery, and the temperature sensors are distributed at different positions of the battery, so that the omnibearing monitoring of each position of the battery can be realized, and the problem of local expansion can be found in time, thereby ensuring the safety of the battery in the use process.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a battery expansion force real-time monitoring system based on a multi-dimensional sensor.
Background
In the current rapidly developed energy field, the battery is used as a core energy storage element, plays an indispensable role in key application scenes such as new energy automobiles, large-scale energy storage power stations, portable electronic equipment and the like, and as the requirements of the fields on the performance, the safety and the reliability of the battery are increasingly severe, various state changes, particularly battery expansion phenomena, of the battery in the using process are deeply understood and effectively monitored, so that the battery system becomes a key for guaranteeing the stable operation of the battery system;
In the process of charge-discharge cycle of the battery, due to factors such as complex electrochemical reaction, phase change of electrode materials, decomposition of electrolyte and the like, the expansion inevitably occurs, and the expansion not only gradually leads to attenuation of battery capacity and increase of internal resistance, so that the overall performance of the battery is reduced, but also serious potential safety hazards are possibly caused, and in a new energy automobile, the mechanical structure of a battery module is possibly damaged by excessive expansion of the battery, so that the internal short circuit of the battery is caused, thermal runaway is further caused, and serious threat is caused to life safety of drivers and passengers. In an energy storage power station, if the expansion of a battery is not monitored and controlled in time, a chain reaction can be initiated, so that a large-scale battery is failed, huge economic loss is caused, and disastrous accidents such as fire disaster and the like can be caused.
At present, the existing battery expansion force detection method has a plurality of limitations, the traditional detection means mostly depend on a single type of sensor, for example, only a pressure sensor is adopted, and the expansion state of a battery is judged by presetting a fixed pressure threshold value, however, due to the nonuniformity and complexity of the internal structure of the battery, the single pressure sensor cannot comprehensively and accurately reflect the actual expansion condition of each part of the battery, in addition, in the actual operation process of the battery, the conditions of the charge and discharge state, the ambient temperature, the humidity and the like are continuously and dynamically changed, the fixed pressure threshold value is difficult to adapt to the complex dynamic changes, misjudgment and missed judgment are easily caused, the small changes of the battery expansion cannot be timely and accurately captured, and more importantly, the existing detection system usually ignores the remarkable influence of the environmental factors such as the temperature, the humidity and the like on the battery expansion, so that the accuracy and the reliability of the detection result are greatly discounted.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art, and provides a battery expansion force real-time monitoring system based on a multi-dimensional sensor, which can solve the problems that in the actual operation process of a battery, conditions such as a charge and discharge state, ambient temperature, humidity and the like are continuously and dynamically changed, a fixed pressure threshold is difficult to adapt to the complex dynamic changes, misjudgment and missed judgment are easy to cause, and the small change of the battery expansion cannot be timely and accurately captured, and more importantly, the existing detection system usually ignores the remarkable influence of environmental factors such as temperature, humidity and the like on the battery expansion, so that the accuracy and reliability of a detection result are greatly reduced.
The battery expansion force real-time monitoring system based on the multidimensional sensor comprises a sensor module, wherein the sensor module is connected with a data acquisition module in a signal transmission way, the data acquisition module is connected with a data transmission module in a signal transmission way, the data transmission module is connected with a data processing module in a signal transmission way, and the data processing module is connected with a user interaction module in a signal transmission way;
The sensor module comprises a pressure sensor, a strain sensor and a temperature sensor;
the pressure sensor, the strain sensor and the temperature sensor are arranged on the battery module;
Preferably, the pressure sensor is directly arranged on a key stress point of the battery shell;
the strain sensor is tightly adhered to the surface of the battery;
the temperature sensors are distributed at different positions of the battery.
Preferably, the data acquisition module further comprises an analog-to-digital conversion module and a signal conditioning module.
Preferably, the data transmission module comprises a wired transmission module and a wireless transmission module;
the wireless transmission module comprises wireless transmission technologies such as Bluetooth, wi-Fi or ZigBee.
Preferably, the data processing module further comprises an analysis module.
Preferably, the user interaction module further comprises a visual page and a threshold alarm module.
Preferably, the pressure sensor, the strain sensor and the temperature sensor are all connected with the data acquisition module in a signal transmission way.
Preferably, the installation interval of the pressure sensor, the strain sensor and the temperature sensor is 100mm2-150mm2.
Preferably, the sensor module signal transmission is connected with a redundant module, and the redundant module is a standby pressure, strain and temperature sensor;
the pressure sensor, the strain sensor and the temperature sensor are embedded into the self-diagnosis module;
The self-diagnosis module is in signal transmission connection with the redundancy module.
Preferably, the analysis module is connected with a backup tracing module in signal transmission, and the backup tracing module is used for establishing an abnormal data backup mechanism
Compared with the prior art, the invention has the beneficial effects that:
(1) The battery expansion force real-time monitoring system based on the multi-dimensional sensor fuses the pressure sensor, the strain sensor and the temperature sensor, acquires battery state information from different angles, avoids the limitation of a single sensor, can more comprehensively reflect the real expansion condition of a battery, is arranged at the key position of a battery shell, the strain sensor is stuck to different positions on the surface of the battery, and the temperature sensor is distributed at different positions of the battery, so that the omnibearing monitoring of all positions of the battery can be realized, and the problem of local expansion can be found in time, thereby ensuring the safety of the battery in the use process.
(2) According to the battery expansion force real-time monitoring system based on the multidimensional sensor, in an environment inconvenient to wire, wireless transmission technologies such as Bluetooth, wi-Fi or ZigBee can be selected, so that convenient data transmission is realized, space and wire limitation are avoided, and flexibility and adaptability of the system are improved.
(3) According to the battery expansion force real-time monitoring system based on the multidimensional sensor, the mathematical model is utilized to calculate the battery expansion force, the historical data is analyzed by combining a machine learning algorithm, and a battery health state evaluation model is established, so that the expansion force value can be obtained in real time, and the residual life of the battery and the potential fault risk can be predicted.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
Fig. 1 is a schematic flow chart of a battery expansion force real-time monitoring system based on a multi-dimensional sensor.
Detailed Description
Reference will now be made in detail to the present embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present invention, but not to limit the scope of the present invention.
In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, greater than, less than, exceeding, etc. are understood to exclude this number, and above, below, within, etc. are understood to include this number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
Referring to FIG. 1, the invention provides a battery expansion force real-time monitoring system based on a multi-dimensional sensor, which comprises a sensor module, wherein the sensor module is connected with a data acquisition module in a signal transmission way, the data acquisition module is connected with a data transmission module in a signal transmission way, the data transmission module is connected with a data processing module in a signal transmission way, and the data processing module is connected with a user interaction module in a signal transmission way;
the sensor module comprises a pressure sensor, a strain sensor and a temperature sensor;
Wherein the pressure sensor, the strain sensor and the temperature sensor are arranged on the battery module;
Further, the pressure sensor is directly arranged on a key stress point of the battery shell and is used for directly measuring the influence on the shell when the battery expands;
the strain sensor is tightly adhered to the surface of the battery, so that the small change of the battery caused by expansion is accurately captured;
the temperature sensors are distributed at different positions of the battery and are used for monitoring the real-time temperature of the battery during operation;
The pressure sensor, the strain sensor and the temperature sensor are integrated, battery state information is obtained from different angles, the limitation of a single sensor is avoided, the real expansion condition of the battery can be reflected more comprehensively, the pressure sensor is arranged at the key position of the battery shell, the strain sensor is stuck to different positions on the surface of the battery, the temperature sensor is distributed at different positions of the battery, the omnibearing monitoring of all positions of the battery can be realized, and the problem of local expansion can be found in time;
Further, when installing pressure sensor, use specific adaptation anchor clamps to install it firmly on battery case key stress point, ensure sensor and the inseparable laminating of shell, avoid appearing not hard up or the poor condition of contact. Before the strain sensor is installed, the surface of the battery is required to be cleaned, the strain sensor is tightly adhered to the surface of the battery by using a special adhesive, bubbles are avoided in the adhering process, and the sensor is ensured to be fully contacted with the surface of the battery so as to accurately capture a strain signal. When the temperature sensor is installed, the temperature sensor is uniformly distributed at different positions of the anode and the cathode of the battery, electrolyte areas and the like according to the internal structural characteristics of the battery, and the sensor is fixed by using high-temperature-resistant fixing glue, so that the position of the sensor is ensured to be stable in the running process of the battery;
The sensor module signal transmission is connected with a redundancy module, and the redundancy module is a standby pressure, strain and temperature sensor, so that after main equipment of the sensor module is damaged, the redundancy module is started, and uninterrupted monitoring of a battery is realized through the standby redundancy module;
The pressure sensor, the strain sensor and the temperature sensor are embedded into the self-diagnosis module, so that the working state of the sensor is automatically checked through the self-diagnosis module, whether the response time of an output signal of the sensor is normal in a reasonable range or not is checked by periodically sending detection instructions to the sensor, if the sensor is found to be faulty or abnormal, the system immediately gives an alarm, marks that the sensor data is unreliable, and simultaneously starts a standby sensor of the redundancy module or takes corresponding fault processing measures to avoid the error data from entering the system;
The self-diagnosis module is in signal transmission connection with the redundancy module, so that when the self-diagnosis module detects that the sensor cannot be used normally, the redundancy module starts a corresponding standby sensor to monitor the battery;
Further, the data acquisition module further comprises an analog-to-digital conversion module and a signal conditioning module;
The signal conditioning module amplifies and processes the signals of the sensor to ensure the signal quality;
The signal conditioning module adopts a specific chip model 1 to amplify weak signals output by the sensor, and in the amplifying process, proper amplification factors are set according to the output signal characteristics of different sensors, for example, the amplification factors are set to be X times for the signals output by the pressure sensor;
The analog-to-digital conversion module converts the analog signals into data signals, so that subsequent data processing and transmission are facilitated;
The data acquisition module firstly cleans and filters the acquired data, can effectively remove noise and abnormal values, ensures the data quality, provides reliable basis for subsequent analysis,
The analog-to-digital conversion module selects [ specific chip model 2], the sampling frequency is set to be [ X ] Hz, the analog signals can be quickly and accurately converted into digital signals, and in the conversion process, the converted digital signals are checked, so that the accuracy of data is ensured. If the data is found to be abnormal, the data acquisition module is triggered in time to acquire the data of the channel again, so that the error data is prevented from entering a subsequent processing flow;
Further, the data transmission module comprises a wired transmission module and a wireless transmission module;
The wired transmission module is suitable for scenes with short distance and high stability requirements, and stably transmits data to the data processing center;
in some inconvenient wiring scenes, wi-Fi or Bluetooth technology is selected for wireless transmission, so that convenient wireless data transmission is realized;
In an environment inconvenient to wire, wireless transmission technologies such as Bluetooth, wi-F or ZigBee can be selected to realize convenient data transmission, the limitation of space and wire is avoided, and the flexibility and the adaptability of the system are improved;
The data processing module further comprises an analysis module, the data processing module can carry out cleaning, denoising and other processes on the received data, abnormal values and interference signals are removed, the analysis module calculates the expansion force of the battery according to the processed data by using a mathematical model and a machine learning algorithm, and the state of health of the battery is analyzed;
Calculating the expansion force of the battery by using a mathematical model, analyzing historical data by combining a machine learning algorithm, and establishing a battery health state evaluation model, so that the expansion force value can be obtained in real time, and the residual life and potential fault risk of the battery can be predicted;
The analysis module is connected with a backup tracing module in a signal transmission way, the backup tracing module is used for establishing an abnormal data backup mechanism, when the system detects data abnormality, the abnormal data is marked, the abnormal data is completely backed up to an independent storage area, and backup contents comprise acquisition time, sensor numbers, data values, current system state information and the like of the abnormal data, so that in subsequent analysis, reasons for generating the abnormal data can be traced, and the system is further optimized and a monitoring strategy is improved;
The user interaction module also comprises a visual page and a threshold alarm module;
The visual page displays the data of the expansion force, the temperature, the health state and the like of the battery in visual forms such as a chart, a curve and the like;
the threshold value alarm module immediately sends out an audible and visual alarm to remind operators when the battery expansion force exceeds a preset safety range;
The developed user interface displays the data of the expansion force, the temperature, the health state and the like of the battery in a visual chart form, a user can easily understand and check the battery state without professional knowledge, the monitoring and the management are convenient, an alarm threshold value is set, and when the expansion force of the battery exceeds a safety range or abnormal changes occur, the system can automatically send out audible and visual alarms, so that the user can timely learn about the abnormal conditions of the battery, corresponding measures can be taken, and the use safety of the battery is ensured;
The pressure sensor, the strain sensor and the temperature sensor are all connected with the data acquisition module through signal transmission.
The working principle is that the pressure sensor, the strain sensor and the temperature sensor are integrated, the battery state information is acquired from different angles, the limitation of a single sensor is avoided, the real expansion condition of the battery can be reflected more comprehensively, the pressure sensor is arranged at the key position of the battery shell, the strain sensor is stuck to different positions on the surface of the battery, the temperature sensor is distributed at different positions of the battery, the omnibearing monitoring of all positions of the battery can be realized, and the local expansion problem can be found in time;
The data acquisition module firstly cleans and filters acquired data, so that noise and abnormal values can be effectively removed, the data quality is ensured, and a reliable basis is provided for subsequent analysis;
In an environment inconvenient to wire, wireless transmission technologies such as Bluetooth, wi-Fi or ZigBee can be selected to realize convenient data transmission, the limitation of space and wire is avoided, and the flexibility and the adaptability of the system are improved;
Calculating the expansion force of the battery by using a mathematical model, analyzing historical data by combining a machine learning algorithm, and establishing a battery health state evaluation model, so that the expansion force value can be obtained in real time, and the residual life and potential fault risk of the battery can be predicted;
The developed user interface displays the data of the expansion force, the temperature, the health state and the like of the battery in a visual chart form, a user can easily understand and check the battery state without professional knowledge, the monitoring and the management are convenient, an alarm threshold value is set, and when the expansion force of the battery exceeds a safety range or abnormal changes occur, the system can automatically send out audible and visual alarms, so that the user can timely learn about the abnormal conditions of the battery, corresponding measures can be taken, and the use safety of the battery is ensured;
The system has good expandability, the number and the type of the sensors can be flexibly increased or adjusted according to different application requirements and battery types, and the data processing algorithm and the model can be optimally upgraded so as to adapt to battery system monitoring with different scales and complexity
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention.
Claims (10)
1. The battery expansion force real-time monitoring system based on the multi-dimensional sensor comprises a sensor module and is characterized in that the sensor module is connected with a data acquisition module in a signal transmission mode, the data acquisition module is connected with a data transmission module in a signal transmission mode, the data transmission module is connected with a data processing module in a signal transmission mode, the data processing module is connected with a user interaction module in a signal transmission mode, the sensor module comprises a pressure sensor, a strain sensor and a temperature sensor, and the pressure sensor, the strain sensor and the temperature sensor are arranged on a battery module in an array mode.
2. The multi-dimensional sensor-based battery expansion force real-time monitoring system is characterized in that the pressure sensor is directly arranged on a key stress point of a battery shell, the strain sensor is tightly adhered to the surface of the battery, and the temperature sensors are distributed at different positions of the battery.
3. The multi-dimensional sensor-based battery expansion force real-time monitoring system according to claim 1, wherein the data acquisition module further comprises an analog-to-digital conversion module and a signal conditioning module.
4. The multi-dimensional sensor-based battery expansion force real-time monitoring system according to claim 1, wherein the data transmission module comprises a wired transmission module and a wireless transmission module;
the wireless transmission module comprises wireless transmission technologies such as Bluetooth, wi-Fi or ZigBee.
5. The multi-dimensional sensor-based battery expansion force real-time monitoring system of claim 1, wherein the data processing module further comprises an analysis module.
6. The multi-dimensional sensor-based battery expansion force real-time monitoring system of claim 1, wherein the user interaction module further comprises a visualization page and a threshold alarm module.
7. The multi-dimensional sensor-based battery expansion force real-time monitoring system according to claim 1, wherein the pressure sensor, the strain sensor and the temperature sensor are in signal transmission connection with the data acquisition module.
8. The multi-dimensional sensor-based battery expansion force real-time monitoring system according to claim 1, wherein the mounting space of the pressure sensor, the strain sensor and the temperature sensor is 100mm2-150mm2.
9. The multi-dimensional sensor-based battery expansion force real-time monitoring system is characterized in that a redundant module is connected to the sensor module in a signal transmission mode, the redundant module is a standby pressure sensor, a standby strain sensor and a standby temperature sensor, the pressure sensor, the strain sensor and the temperature sensor are embedded into a self-diagnosis module, and the self-diagnosis module is connected with the redundant module in a signal transmission mode.
10. The system for monitoring the expansion force of the battery in real time based on the multidimensional sensor according to claim 5, wherein the analysis module is connected with a backup tracing module in a signal transmission manner, and the backup tracing module is used for establishing an abnormal data backup mechanism.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202510239629.XA CN120049036A (en) | 2025-03-03 | 2025-03-03 | Battery expansion force real-time monitoring system based on multidimensional sensor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202510239629.XA CN120049036A (en) | 2025-03-03 | 2025-03-03 | Battery expansion force real-time monitoring system based on multidimensional sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120565883A (en) * | 2025-07-31 | 2025-08-29 | 山东浪潮智能终端科技有限公司 | Lithium battery safety monitoring method and system based on multi-sensor fusion |
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2025
- 2025-03-03 CN CN202510239629.XA patent/CN120049036A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120565883A (en) * | 2025-07-31 | 2025-08-29 | 山东浪潮智能终端科技有限公司 | Lithium battery safety monitoring method and system based on multi-sensor fusion |
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Application publication date: 20250527 |