A battery monitoring system

Abstract

This utility model discloses a battery monitoring system, including: a vibration sensor and a controller; the vibration sensor and the controller are connected; the vibration sensor is used to detect the vibration signal of the battery and send it to the controller; the controller is used to detect the battery status based on the vibration signal; this battery monitoring system detects the vibration signal of the battery through the vibration sensor and obtains the battery status through the vibration signal, which can obtain battery status information more comprehensively and accurately, and improve battery safety monitoring.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a battery monitoring system. Background Technology

[0002] With the increasing popularity of electric vehicles, battery combustion incidents are becoming more frequent. Currently, electric vehicle battery manufacturers typically monitor batteries, using controllers to detect data such as current, voltage, and temperature, and then uploading this data to cloud servers. However, battery thermal failure can be caused not only by the battery itself but also by external factors, such as a severe impact. Furthermore, electric vehicles generally require charging in designated safe areas. Disassembly of the battery could lead to burglary or theft, posing risks of battery thermal failure during charging and theft. Since controllers and battery cloud servers typically lack relevant data, it's impossible to trace the cause of battery thermal failure or determine responsibility. Additionally, monitoring only the battery's own data cannot provide early warnings of potential risks. Summary of the Invention

[0003] To improve battery safety, this invention proposes a battery monitoring system.

[0004] To achieve the above objectives, this utility model provides a battery monitoring system, comprising: a vibration sensor and a controller; the vibration sensor and the controller are connected; the vibration sensor is used to detect the vibration signal of the battery and send it to the controller; the controller is used to detect the battery status based on the vibration signal.

[0005] Optionally, it may also include: a GPS module; the GPS module is connected to the controller and is used to obtain the battery's location information and send it to the controller.

[0006] Optionally, it also includes: a terminal; the terminal is connected to the controller; the controller is also used to send one or more of alarm information, location information and warning information to the terminal.

[0007] Optionally, the controller is used to detect the battery's drop and impact status based on vibration signals, and send drop alarm information or impact alarm information to the terminal when the battery is in a drop or impact state.

[0008] Optionally, the controller is used to detect the illegal disassembly state of the battery based on vibration signals and location information, and send illegal disassembly alarm information and location information to the terminal when the battery is in an illegal disassembly state.

[0009] Optionally, the controller is used to send a thermal failure risk warning to the terminal when the amplitude of the detected vibration signal exceeds a first set value or the total number of drops and impacts exceeds a preset number.

[0010] Optionally, a spectrum analyzer; the spectrum analyzer is connected to the vibration sensor and the controller, and is used to perform spectrum analysis on the vibration signal and send the spectrum analysis data to the controller.

[0011] Optionally, the controller is configured to send a mechanical fault alarm message to the terminal when it detects a persistent abnormal frequency component in the spectrum analysis data.

[0012] Optionally, the vibration sensor is a gyroscope; the vibration signal is an acceleration signal.

[0013] Optionally, the controller includes: a BMS module and a cloud server; the BMS module is connected to the vibration sensor, GPS module and spectrum analyzer, and is used to receive vibration signals, location information and spectrum analysis data; the cloud server is connected to the BMS module and the terminal, and is used to detect battery status and send one or more of alarm information, location information and early warning information to the terminal.

[0014] This utility model has the following beneficial effects: 1. The battery monitoring system of this utility model is equipped with a vibration sensor. The vibration sensor detects the vibration signal of the battery, and the controller detects the battery status through the vibration signal. By obtaining the battery status through the vibration signal, the battery status information can be obtained more comprehensively and accurately, thereby improving battery safety monitoring.

[0015] 2. The battery monitoring system of this utility model is also equipped with a GPS module. The GPS module obtains the battery location information, and the controller identifies the battery drop and illegal disassembly status. It can accurately detect and identify whether the battery has been dropped or illegally disassembled when it is stationary and cannot be determined from the vibration signal alone. It can detect the risk of battery theft.

[0016] 3. The battery monitoring system of this utility model is also equipped with a spectrum analyzer. By analyzing the vibration signal through the spectrum analyzer, when there are continuous abnormal frequency components, it is determined that the electric vehicle or battery has a mechanical fault, and the user is reminded to carry out maintenance to avoid travel risks. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the battery monitoring system provided in an embodiment of the present invention.

[0018] Explanation of icon numbers: 1. Vibration sensor; 2. Controller; 3. GPS module; 4. Terminal; 5. Spectrum analyzer. Detailed Implementation

[0019] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0020] Reference Figure 1 A battery monitoring system includes: a vibration sensor 1 and a controller 2; the vibration sensor 1 and the controller 2 are connected; the vibration sensor 1 is used to detect the vibration signal of the battery and send it to the controller 2; the controller 2 is used to detect the battery status based on the vibration signal; the vibration sensor 1 is installed on an electric vehicle or battery; the battery status includes: drop, impact, and illegal disassembly.

[0021] The system also includes: GPS module 3; the GPS module 3 is connected to the controller 2 and is used to obtain the battery's location information and send it to the controller 2.

[0022] The system also includes: a terminal 4; the terminal 4 is connected to the controller 2, and the controller 2 is also used to send one or more of alarm information, location information, and warning information to the terminal; the controller 2 is used to send drop alarm information, impact alarm information, illegal disassembly alarm information, and location information to the terminal respectively when it detects that the battery is in a state of drop, impact, or illegal disassembly; the controller 2 is used to determine that the battery has a risk of thermal failure and send a thermal failure risk warning to the terminal when the amplitude of the vibration signal exceeds a first set value A1 or the total number of drops and impacts is greater than a preset number C; wherein, the first set value A1 and the preset number C are obtained based on experiments on the thermal failure risk caused by specific battery drops or impacts.

[0023] The controller 2 is used to detect the battery's drop and impact states based on vibration signals, and to detect the battery's illegal disassembly state based on vibration signals and location information. The controller 2 is used to wake up the GPS module 3 and detect the battery's location information when the amplitude of the vibration signal detected when the battery is stationary exceeds a second preset value A2 within a second preset time T2. The controller 2 is used to determine that the battery is in an illegally disassembled state and send an illegal disassembly alarm and the battery's location information to the terminal 4 when the battery's location changes (i.e., the battery is moved). The controller 2 is used to determine that the battery is in a drop state (i.e., the electric vehicle or battery has fallen) when the amplitude of the vibration signal detected when the battery is stationary exceeds a third preset value A3 within a third preset time T3, and sends a drop alarm information to the terminal 4. The controller 2 is used to determine that the battery is in an impact (including fall) state when the amplitude of the vibration signal detected when the battery is moving exceeds a fourth preset value A4 within a fourth preset time T4, and sends an impact alarm information to the terminal 4. Furthermore, the controller 2 determines that the battery is in a stationary state when the amplitude of the detected vibration signal is less than or equal to the fifth set value A5 for more than the fifth preset time T5; the controller 2 determines that the battery is in a moving state when the amplitude of the detected vibration signal is greater than the fifth set value A5 for more than the fifth preset time T5. The amplitude set values ​​A2-A5 and the preset times T2-T5 can be set by those skilled in the art according to the specific environmental vibration noise and road conditions of the battery.

[0024] The system also includes: a spectrum analyzer 5; the spectrum analyzer 5 is connected to the vibration sensor 1 and the controller 2, and is used to perform spectrum analysis on the vibration signal and send the spectrum analysis data to the controller 2; the controller 2 is used to determine that the electric vehicle or battery has a mechanical fault when it detects a continuous abnormal frequency component in the spectrum analysis data and sends a mechanical fault alarm information to the terminal.

[0025] Furthermore, the vibration sensor 1 is a gyroscope; the vibration signal is an acceleration signal. The controller 2 includes a BMS module and a cloud server; the BMS module is connected to the vibration sensor 1, the GPS module 3, and the spectrum analyzer 5, and is used to receive vibration signals, location information, and spectrum analysis data; the cloud server is connected to the BMS module and the terminal, and is used to detect battery status and send one or more of alarm information, location information, and warning information to the terminal.

[0026] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0027] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A battery monitoring system, characterized in that, include: Vibration sensor and controller; connection between vibration sensor and controller; vibration sensor is used to detect vibration signals from the battery and send them to the controller; The controller is used to detect the battery status based on vibration signals.

2. The battery monitoring system according to claim 1, characterized in that, Also includes: GPS module; the GPS module is connected to the controller and is used to obtain the battery's location information and send it to the controller.

3. The battery monitoring system according to claim 2, characterized in that, Also includes: The terminal is connected to the controller; the controller is also used to send one or more of alarm information, location information, and early warning information to the terminal.

4. The battery monitoring system according to claim 3, characterized in that, The controller is used to detect the battery's drop and impact status based on vibration signals, and to send drop alarm information or impact alarm information to the terminal when the battery is in a drop or impact state.

5. The battery monitoring system according to claim 3, characterized in that, The controller is used to detect the illegal disassembly state of the battery based on vibration signals and location information, and to send an illegal disassembly alarm message and location information to the terminal when the battery is in an illegal disassembly state.

6. The battery monitoring system according to claim 4, characterized in that, The controller is used to send a thermal failure risk warning to the terminal when the amplitude of the detected vibration signal exceeds a first set value or the total number of drops and impacts exceeds a preset number.

7. The battery monitoring system according to any one of claims 3-6, characterized in that, Also includes: Spectrum analyzer; The spectrum analyzer is connected to the vibration sensor and controller, and is used to perform spectrum analysis on the vibration signal and send the spectrum analysis data to the controller.

8. The battery monitoring system according to claim 7, characterized in that, The controller is used to send a mechanical fault alarm message to the terminal when it detects a persistent abnormal frequency component in the spectrum analysis data.

9. The battery monitoring system according to any one of claims 1-6, characterized in that, The vibration sensor is a gyroscope; the vibration signal is an acceleration signal.

10. The battery monitoring system according to claim 7, characterized in that, The controller includes a BMS module and a cloud server; the BMS module is connected to the vibration sensor, GPS module and spectrum analyzer, and is used to receive vibration signals, location information and spectrum analysis data; the cloud server is connected to the BMS module and the terminal, and is used to detect battery status and send one or more of alarm information, location information and early warning information to the terminal.

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