Battery pack data acquisition edge device and battery pack thereof

Abstract

The utility model relates to a battery pack data acquisition edge device and a battery pack thereof, the battery pack data acquisition edge device comprises a CAN communicator, a positioner, a data processor and a wireless communicator, the CAN communicator is used for obtaining and sending battery data information; the positioner is used for acquiring and transmitting battery position information; the data processor is connected with the CAN communicator and the positioner, and is used for receiving and processing the battery data information and the battery position information; and the wireless communicator is connected with the data processor and is used for transmitting the processed battery data information and the battery position information to a cloud monitoring platform. According to the utility model, battery data information is obtained through the CAN communicator and is sent to the cloud monitoring platform through the wireless communicator after being processed by the data processor, so that data support is provided for health management and echelon utilization of the battery pack; the positioner obtains the position information of the battery, so that the cloud monitoring platform can conveniently monitor the positions of the battery and the vehicle in real time.

Description

Technical Field

[0001] This application relates to the field of batteries, and particularly to a battery pack data acquisition edge device and its battery pack. Background Art

[0002] Under the guidance of the national strategic goals of "carbon peak and carbon neutrality", the new energy vehicle industry in China has witnessed explosive growth, especially in the electric heavy truck market. The "New Energy Vehicle Industry Development Plan (2021 - 2035)" at the national level provides policy support for the industry's development, encourages local governments to carry out pilot demonstrations of the battery swapping mode, and promotes the scientific layout and intelligent management of charging and swapping infrastructure. With the joint support of authoritative departments such as the Ministry of Finance and the Ministry of Industry and Information Technology, the new energy vehicle field has become a hot investment area, and at the same time provides a positive solution to the environmental problems in the transportation field.

[0003] Power batteries play a crucial role in the total investment of battery swapping stations and are important assets that require full - life - cycle dynamic monitoring. However, due to the current extensive management, the diversity of battery technologies increases the complexity of operation and maintenance management, and the lack of consistent safety standards and management systems may lead to serious safety accidents such as thermal runaway; in addition, due to the lack of monitoring equipment that follows the battery, the location of the battery cannot be tracked in real time after it is installed on the vehicle, posing a risk of asset loss. Utility Model Content

[0004] This application provides a battery pack data acquisition edge device and its battery pack, which can solve the problem in related technologies that the location of the battery cannot be tracked in real time after it is installed on the vehicle, posing a risk of asset loss.

[0005] In a first aspect, an embodiment of this application provides a battery pack data acquisition edge device, which includes: a CAN communicator, a locator, a data processor, and a wireless communicator. The CAN communicator is used to obtain and transmit battery data information; the locator is used to obtain and transmit battery location information; the data processor is connected to the CAN communicator and the locator, and is used to receive and process battery data information and battery location information; the wireless communicator is connected to the data processor, and the wireless communicator is used to transmit the processed battery data information and battery location information to the cloud monitoring platform.

[0006] In combination with the first aspect, in an implementation manner, the device further includes a power supply component, and the power supply component is connected to the CAN communicator, the locator, the data processor, and the wireless communicator.

[0007] In combination with the first aspect, in an implementation manner, the power supply component includes a UPS power supply, and the UPS power supply is connected to the wireless communicator, the data processor, and the locator.

[0008] In combination with the first aspect, in one embodiment, when the battery pack is powered off, the UPS power supply is activated, and the UPS power supply supplies power to the wireless communicator, the data processor, and the locator.

[0009] In combination with the first aspect, in one embodiment, the data processor includes a position recognition sub-module for identifying positioning data, and the position recognition sub-module is used to send a positioning normal signal and a positioning abnormal signal to the wireless communicator.

[0010] In combination with the first aspect, in one embodiment, the device further includes an encryption / decryption device, which is connected to both the data processor and the wireless communicator, and the encryption / decryption device is used to encrypt or decrypt the processed battery data information and battery position information.

[0011] In combination with the first aspect, in one embodiment, the data processor includes a screening sub-module and an arithmetic sub-module;

[0012] The screening sub-module is connected to the arithmetic sub-module, and the screening sub-module is used to extract useful data information from the battery data information and the battery position information;

[0013] The arithmetic sub-module is connected to the wireless communicator, and the arithmetic sub-module is used to calculate the useful data information to obtain transmission data information, and is used to send the transmission data information to the wireless communicator.

[0014] In combination with the first aspect, in one embodiment, the data processor further includes a compression sub-module, and the compression sub-module is connected to the arithmetic sub-module and the wireless communicator;

[0015] The compression sub-module is used to send the compressed transmission data information to the wireless communicator.

[0016] In the second aspect, an embodiment of the present application provides a battery pack, which includes the battery pack data acquisition edge device as described above.

[0017] The beneficial effects brought by the technical solutions provided by the embodiments of the present application include:

[0018] The embodiments of the present application provide a battery pack data acquisition edge device and its battery pack. The battery data information is obtained through the CAN communicator. After obtaining the battery data information, the data processor screens, calculates, and compresses the parsed data to ensure that important information is efficiently transmitted with a smaller data flow. Finally, it is sent to the cloud monitoring platform in a wireless form through the wireless communicator, which can timely discover and prevent potential safety problems, and at the same time provide data support for the health management and cascade utilization of the battery pack; the battery position information is obtained through the locator, which is convenient for the cloud monitoring platform to monitor the positions of the battery and the vehicle in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0020] Figure 1 It is a structural block diagram of the battery pack data acquisition edge device provided by the embodiment of the present application.

[0021] In the figure: 1. CAN communicator; 2. Locator; 3. Data processor; 4. Wireless communicator; 5. Power supply component; 6. Encryption and decryption device; 7. Cloud monitoring platform; 8. Vehicle-end CAN bus. Specific embodiments

[0022] To enable those skilled in the art to better understand the solutions of the present application, the following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0023] The embodiment of the present application provides a battery pack data acquisition edge device and its battery pack, which can solve the problem that the battery cannot be tracked in real time after being installed on the vehicle in the related art, and there is a risk of asset loss.

[0024] See Figure 1 As described above, in the first aspect, the embodiment of the present application provides a battery pack data acquisition edge device, which includes: a CAN communicator 1, a locator 2, a data processor 3, and a wireless communicator 4. The CAN communicator 1 is used to obtain and transmit battery data information externally; the locator 2 is used to obtain and transmit battery position information externally; the data processor 3 is connected to the CAN communicator 1 and the locator 2, and is used to receive and process battery data information and battery position information; the wireless communicator 4 is connected to the data processor 3, and the wireless communicator 4 is used to transmit the processed battery data information and battery position information to the cloud monitoring platform 7.

[0025] In the present application, the battery data information is obtained through the CAN communicator 1. After the battery data information is obtained, it is processed by the data processor 3, and finally sent to the cloud monitoring platform 7 in a wireless form through the wireless communicator 4, which can timely discover and prevent potential safety problems, and at the same time provide data support for the health management and cascade utilization of the battery pack; the battery position information is obtained through the locator 2, which is convenient for the cloud monitoring platform 7 to monitor the positions of the battery and the vehicle in real time.

[0026] Among them, the data processing module plays a core role in the battery edge sensing device. Its main functions are to parse and process the collected data, send it to the intelligent monitoring platform through encryption means, and conduct the instructions or upgrade packages sent from the cloud;

[0027] The function of CAN communicator 1 is to be compatible with the CAN communications of the battery and the whole vehicle, obtain battery data information, and hand it over to data processor 3 for processing;

[0028] The main function of wireless communicator 4 is to send the battery data information and battery position information to the cloud monitoring platform 7 after analysis and processing, facilitating real-time tracking of vehicle and battery data;

[0029] Locator 2 is mainly used to locate the device, facilitating the cloud monitoring platform 7 to monitor the positions of the battery and the vehicle in real time, and can also provide a basis for the operator to monitor driving behavior. In addition, the cloud monitoring platform 7 can provide a reference for the scientific site selection of the battery swapping station based on the analysis of the historical trajectory data of the battery obtained. In this application, locator 2 has the dual-mode positioning capabilities of GPS and Beidou, can cover the global range, and can provide continuous, stable, and reliable positioning services, making up for the defect of unstable positioning capabilities of a single system in some regions.

[0030] Based on some embodiments, in this embodiment, data processor 3 includes a screening sub-module and an arithmetic sub-module. Further, it is set that data processor 3 further includes a compression sub-module, and the compression sub-module is connected to the arithmetic sub-module and wireless communicator 4.

[0031] Specifically, the screening sub-module is connected to the arithmetic sub-module, and the screening sub-module is used to extract useful data information from the battery data information and battery position information; the arithmetic sub-module is connected to wireless communicator 4, and the arithmetic sub-module is used to calculate the useful data information to obtain transmission data information, and is used to send the transmission data information to wireless communicator 4; the compression sub-module is used to send the compressed transmission data information to wireless communicator 4.

[0032] It should be noted that the data processed by data processor 3 mainly includes CAN bus data processing: Data processor 3 obtains battery data information through vehicle-side CAN bus 8 and CAN communicator 1. Data processor 3 parses the CAN message according to the communication protocol, extracts useful information through the screening sub-module, then the arithmetic sub-module will calculate the parsed data, and finally the compression sub-module compresses the calculated data to ensure that important data information is efficiently transmitted to wireless communicator 4 with a smaller data flow.

[0033] Based on some embodiments, in this embodiment, the device further includes a power supply component 5, and the power supply component 5 is connected to the CAN communicator 1, the locator 2, the data processor 3, and the wireless communicator 4.

[0034] The main functions of the power supply component 5 are to provide stable power supply for various components, isolate input and output, protect the device in case of abnormal power input, and improve the voltage compatibility of the device.

[0035] Furthermore, in this embodiment, the power supply component 5 is set to include a UPS power supply, and the UPS power supply is connected to the wireless communicator 4, the CAN communicator 1, the data processor 3, and the locator 2. By setting the UPS power supply, it is ensured that when the 12V or 24V voltage provided by the whole vehicle is lost, the device can be powered by the battery system to maintain operation after voltage reduction, so that the device can continuously monitor various states of the battery in case of abnormal situations when separated from the vehicle, ensuring property safety.

[0036] In this embodiment, when the battery pack is powered off, the UPS power supply is activated, and the UPS power supply supplies power to the wireless communicator 4, the CAN communicator 1, the data processor 3, and the locator 2.

[0037] The design of the UPS power supply (UPS (Uninterruptible Power System), that is, an uninterruptible power supply) can immediately take over the power supply after the low-voltage power supply provided by the whole vehicle is powered off, ensuring that the device can continue to operate. Its key functions, such as the satellite positioning of the locator 2 and the operation of the wireless communicator 4, are not affected. This design can ensure that the battery can still effectively monitor and manage the battery in the abnormal state of being separated from the vehicle for a long time. Especially during battery replacement or transportation, it can prevent the battery from being lost or stolen, and at the same time, it can ensure real-time monitoring of the battery's health status and prevent potential safety risks.

[0038] Therefore, based on the above design, the data processor 3 is set to include a position recognition sub-module for identifying positioning data, and the position recognition sub-module is used to send a positioning normal signal and a positioning abnormal signal to the wireless communicator 4.

[0039] Combined with the power supply component 5, the locator 2, the CAN communicator 1, and the wireless communicator 4, the UPS power supply continuously supplies power to the locator 2, the CAN communicator 1, and the wireless communicator 4. The wireless communicator 4 sends the startup status of the UPS power supply and the battery position information to the cloud monitoring platform 7. The position recognition sub-module of the locator 2 determines whether the battery is within the range of the battery swapping station or the specified working area. Combining the above data, if the battery position information is not within the range of the battery swapping station or the specified working area when the UPS power supply is activated, an abnormal warning is prompted, and during battery replacement or transportation, the battery can be prevented from being lost or stolen.

[0040] Based on some embodiments, in this embodiment, the device further includes an encryption and decryption unit 6, which is connected to both the data processor 3 and the wireless communicator 4. The encryption and decryption unit 6 is used to encrypt or decrypt the processed battery data information and battery location information.

[0041] In this embodiment, to ensure data security during data transmission, the device will encrypt the transmitted data. In addition to the battery bus data on the vehicle-side CAN bus 8 being encrypted through the CAN communication protocol, the device will also encrypt the data sent by the wireless communicator 4 through the encryption and decryption unit 6 to ensure the security of wireless data. When data needs to be decrypted, the data can also be decrypted through the encryption and decryption unit 6. To further ensure the security of the information sent by the device, the encryption and decryption unit 6 uses an independent MOD8ID encryption chip to encrypt the transmitted data. The MOD8ID encryption chip supports a variety of encryption algorithms, including the ECC (Ellipse Curve Cryptography) elliptic curve cryptography algorithm, RSA encryption algorithm, AES (Advanced Encryption Standard) algorithm, SHA1 / 256 encryption algorithm, SM2 algorithm, SM3 algorithm, SM4 algorithm, etc.

[0042] In summary, the device integrates the UPS power supply function and can still monitor the battery location information when the battery is offline. The data processor 3 obtains the battery data information through the CAN communicator 1. After extracting useful information, the data processor 3 filters, calculates, and compresses the parsed battery data information to ensure that important information is efficiently transmitted with a smaller data flow. It can monitor and evaluate the energy consumption of the entire vehicle, providing data support for improving the energy consumption management level.

[0043] In a second aspect, an embodiment of the present application provides a battery pack, which includes the battery pack data acquisition edge device provided in any of the above embodiments of the present application.

[0044] Among them, the device further includes a power supply component 5, which is connected to the CAN communicator 1, the locator 2, the data processor 3, and the wireless communicator 4.

[0045] The power supply component 5 includes a UPS power supply, which is connected to the wireless communicator 4, the data processor 3, and the locator 2.

[0046] When the battery pack is powered off, the UPS power supply is activated, and the UPS power supply supplies power to the wireless communicator 4, the data processor 3, and the locator 2.

[0047] The data processor 3 includes a position recognition sub-module for identifying positioning data, and the position recognition sub-module is used to send a positioning normal signal and a positioning abnormal signal to the wireless communicator 4.

[0048] The device further includes an encryption / decryption unit 6, which is connected to both the data processor 3 and the wireless communicator 4. The encryption / decryption unit 6 is used to encrypt or decrypt the processed battery data information and battery position information.

[0049] The data processor 3 includes a screening sub-module and an arithmetic sub-module;

[0050] The screening sub-module is connected to the arithmetic sub-module, and the screening sub-module is used to extract useful data information from the battery data information and the battery position information;

[0051] The arithmetic sub-module is connected to the wireless communicator 4. The arithmetic sub-module is used to calculate the useful data information to obtain transmission data information, and is used to send the transmission data information to the wireless communicator 4.

[0052] The data processor 3 further includes a compression sub-module, which is connected to the arithmetic sub-module and the wireless communicator 4; the compression sub-module is used to send the compressed transmission data information to the wireless communicator 4.

[0053] In this application, the battery data information is obtained through the CAN communicator 1. After the battery data information is obtained, it is processed by the data processor 3, and finally sent to the cloud monitoring platform 7 in a wireless form through the wireless communicator 4, which can timely discover and prevent potential safety problems, and at the same time provide data support for the health management and cascade utilization of the battery pack; the battery position information is obtained through the locator 2, which facilitates the cloud monitoring platform 7 to monitor the positions of the battery and the vehicle in real time.

[0054] In the description of this application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to this application. Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0055] It should be noted that in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

[0056] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but rather will conform to the broadest scope consistent with the principles and novel features claimed herein.

Claims

1. A battery pack data acquisition edge device, characterized in that It includes: A CAN communicator (1) for acquiring and transmitting battery data information externally; A locator (2) for acquiring and transmitting battery location information externally; A data processor (3) connected to the CAN communicator (1) and the locator (2), and used for receiving and processing battery data information and battery location information; A wireless communicator (4) connected to the data processor (3), and the wireless communicator (4) is used for transmitting the processed battery data information and battery location information to the cloud monitoring platform (7).

2. The battery pack data acquisition edge device according to claim 1, characterized in that: The device further includes a power supply component (5), and the power supply component (5) is connected to the CAN communicator (1), the locator (2), the data processor (3) and the wireless communicator (4).

3. The battery pack data acquisition edge device according to claim 2, characterized in that: The power supply component (5) includes a UPS power supply, and the UPS power supply is connected to the wireless communicator (4), the CAN communicator (1), the data processor (3) and the locator (2).

4. The battery pack data acquisition edge device according to claim 3, characterized in that: When the battery pack is powered off, the UPS power supply is started, and the UPS power supply supplies power to the wireless communicator (4), the CAN communicator (1), the data processor (3) and the locator (2).

5. The battery pack data acquisition edge device according to claim 3, characterized in that: The data processor (3) includes a position recognition sub-module for recognizing positioning data, and the position recognition sub-module is used for sending a positioning normal signal and a positioning abnormal signal to the wireless communicator (4).

6. The battery pack data acquisition edge device according to claim 1, characterized in that: The device further includes an encryption / decryption device (6), and the encryption / decryption device (6) is connected to both the data processor (3) and the wireless communicator (4), and the encryption / decryption device (6) is used for encrypting or decrypting the processed battery data information and battery location information.

7. The battery pack data acquisition edge device according to claim 1, characterized in that: The data processor (3) includes a screening sub-module and an arithmetic sub-module; The screening sub-module is connected to the arithmetic sub-module, and the screening sub-module is used for extracting useful data information from the battery data information and the battery location information; The arithmetic sub-module is connected to the wireless communicator (4), and the arithmetic sub-module is used for calculating the useful data information to obtain transmission data information and for sending the transmission data information to the wireless communicator (4).

8. The battery pack data acquisition edge device according to claim 7, characterized in that: The data processor (3) further includes a compression sub-module, and the compression sub-module is connected to the arithmetic sub-module and the wireless communicator (4); The compression sub-module is used for sending the compressed transmission data information to the wireless communicator (4).

9. A battery pack, characterized in that, It includes: The battery pack data acquisition edge device according to any one of claims 1-8.

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