CN116127278A - Signal processing device and method for battery management system - Google Patents
Signal processing device and method for battery management system Download PDFInfo
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- CN116127278A CN116127278A CN202310140719.4A CN202310140719A CN116127278A CN 116127278 A CN116127278 A CN 116127278A CN 202310140719 A CN202310140719 A CN 202310140719A CN 116127278 A CN116127278 A CN 116127278A
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4247—Bus transfer protocol, e.g. handshake; Synchronisation on a daisy chain bus
Abstract
The invention provides a signal processing device and a signal processing method of a battery management system, wherein a processor in the signal processing device can determine a current working mode; processing the received daisy chain signal based on a signal processing component in a working mode control signal processing device to obtain a processing result; the processing result includes at least one of daisy chain waveform data and BMS data; and executing the operation corresponding to the working mode on the processing result. The daisy chain signal can be processed based on the operation mode to obtain at least one of waveform data and BMS data, and then the operation corresponding to the operation mode is executed on at least one of the waveform data and the BMS data, so that the data analysis requirement of the BMS can be met.
Description
Technical Field
The present invention relates to the field of signal processing technologies, and in particular, to a signal processing device and method for a battery management system.
Background
At present, in order to ensure the normal operation of a battery management system BMS, an oscilloscope is generally adopted to carry out quality analysis on bus signals in the battery management system BMS, however, the oscilloscope can only observe short-time signal waveforms and cannot meet the data analysis requirements of the BMS in different scenes.
Disclosure of Invention
The invention aims to provide a signal processing device and a signal processing method of a battery management system, which can meet the data analysis requirement of a BMS. The specific scheme is as follows:
a signal processing apparatus comprising:
a signal processing component and a processor;
the signal processing component is used for receiving the daisy chain signal of the battery management system BMS and processing the received daisy chain signal;
the processor is configured to:
determining a current working mode;
controlling the signal processing assembly to process the received daisy chain signal based on the working mode to obtain a processing result; the processing result includes at least one of daisy chain waveform data and BMS data;
and executing the operation corresponding to the working mode on the processing result.
The above apparatus, optionally, the signal processing component includes:
the device comprises a signal switching circuit, a first signal processing module and a second signal processing module;
the signal switching circuit is used for receiving the daisy chain signal sent by the signal acquisition component and sending the daisy chain signal to the first signal processing module and/or the second signal processing module;
the first signal processing module is used for converting the daisy chain signal into daisy chain waveform data and transmitting the daisy chain waveform data to the processor under the condition that the daisy chain signal transmitted by the signal switching circuit is received;
the second signal processing module is configured to decode the daisy chain signal to obtain BMS data and send the BMS data to the processor when the daisy chain signal sent by the signal switching circuit is received.
The above apparatus, optionally, the first signal processing module includes:
a signal conditioning circuit and an analog-to-digital converter;
the signal conditioning circuit is used for preprocessing the daisy chain signal under the condition of receiving the daisy chain signal sent by the signal switching circuit;
the analog-to-digital converter is used for converting the preprocessed daisy chain signal into daisy chain waveform data and sending the daisy chain waveform data to the processor.
The above apparatus, optionally, the processor is configured to:
controlling the signal switching circuit to send the daisy chain signal to the first signal processing module in the case that the operation mode includes a waveform analysis mode;
and controlling the signal switching circuit to send the daisy chain signal to the second signal processing module in the case that the working mode comprises a low power consumption mode.
The above apparatus, optionally, the processor is configured to:
controlling the signal processing component to output daisy chain waveform data based on the daisy chain signal under the condition that the working mode is a preset first waveform analysis mode;
and decoding the daisy chain waveform data to obtain BMS data.
The above apparatus, optionally, the processor is configured to:
controlling the signal processing component to output daisy chain waveform data based on the daisy chain signal under the condition that the working mode is a preset second waveform analysis mode;
decoding the daisy chain waveform data to obtain BMS data;
acquiring waveform data segments corresponding to the error data from the daisy chain waveform data under the condition that the error data exist in the BMS data;
and generating fault data records according to the error data and the waveform data segments.
The above apparatus, optionally, the processor is configured to:
controlling the signal processing component to output BMS data based on the daisy chain signal under the condition that the working mode is a preset first low-power consumption mode;
and storing the BMS data.
The above apparatus, optionally, the processor is configured to:
controlling the signal processing component to output BMS data based on the daisy chain signal under the condition that the working mode is a preset second low-power consumption mode;
and under the condition that the BMS data has error data, switching the working mode from the second low-power consumption mode to a preset waveform analysis mode.
The above device, optionally, further comprises: a display module;
the display module is used for displaying at least one of the daisy chain waveform data and the BMS data.
The above device, optionally, further comprises: a storage module;
the storage module is used for storing at least one of the daisy chain waveform data and the BMS data.
The above device, optionally, further comprises: a control assembly;
the control component is used for receiving the selection operation of a user;
the processor is used for determining the mode corresponding to the selection operation as the current working mode.
In the foregoing apparatus, optionally, the processor is configured to send at least one of the daisy-chain waveform data and the BMS data to an electronic device through a preset data transmission interface.
A signal processing method applied to a processor in a signal processing apparatus, the signal processing apparatus further comprising a signal processing component, the method comprising:
determining a current working mode;
controlling the signal processing component to process the received daisy chain signal based on the working mode under the condition that the daisy chain signal of the battery management system BMS is received, and obtaining a processing result, wherein the processing result comprises at least one of daisy chain waveform data and BMS data;
and executing the operation corresponding to the working mode on the processing result.
Compared with the prior art, the embodiment of the invention has the following advantages:
the embodiment of the invention provides a signal processing device and a signal processing method of a battery management system, wherein a processor in the signal processing device can determine a current working mode; processing the received daisy chain signal based on a signal processing component in a working mode control signal processing device to obtain a processing result; the processing result includes at least one of daisy chain waveform data and BMS data; and executing the operation corresponding to the working mode on the processing result. By applying the device provided by the embodiment of the invention, the daisy chain signal can be processed based on the current working mode to obtain at least one of the waveform data and the BMS data, and then the operation corresponding to the working mode is executed on at least one of the waveform data and the BMS data, so that the data analysis requirement of the BMS can be met.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a signal processing device of a battery management system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a signal processing device of another battery management system according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating a signal processing procedure in a first waveform analysis mode according to an embodiment of the present invention;
FIG. 4 is a flowchart illustrating a signal processing procedure in a second waveform analysis mode according to an embodiment of the present invention;
FIG. 5 is a flowchart illustrating a signal processing procedure in a second waveform analysis mode according to an embodiment of the present invention;
FIG. 6 is a flowchart illustrating a signal processing procedure in a second waveform analysis mode according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a signal processing device of another battery management system according to an embodiment of the present invention;
fig. 8 is a flowchart of a signal processing method of a battery management system according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In this application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
At present, in order to ensure the normal operation of a battery management system BMS, an oscilloscope is generally adopted to carry out quality analysis on bus signals in the battery management system BMS, however, the oscilloscope can only observe short-time signal waveforms and cannot meet the data analysis requirements of the BMS in different scenes. Moreover, the signal waveform displayed by the oscilloscope and the BMS data of the upper computer are difficult to accurately align and time synchronize, and the communication waveform of the abnormal moment of the BMS data cannot be accurately positioned; the system can not check and analyze the correctness of the data and realize the functions of data error triggering and the like. Furthermore, the oscilloscope has a large volume and a large weight, and there are many inconveniences in using the oscilloscope to observe signals of the BMS.
Based on this, an embodiment of the present invention provides a signal processing device of a battery management system, where a schematic structural diagram of the signal processing device is shown in fig. 1, and specifically includes:
a signal processing component 101 and a processor 102;
the signal processing component 101 is configured to receive a daisy chain signal of the battery management system BMS, and process the received daisy chain signal. In this embodiment, the signal processing component may be connected to a daisy chain signal line of the battery management system; or connected to the battery management system daisy chain signal line through the signal acquisition assembly to receive the daisy chain signal. In some embodiments, the signal acquisition component may be a daisy-chained signal probe, which may be used to acquire the daisy-chained signal and then send the acquired daisy-chained signal to the signal processing component. The battery management system BMS comprises a plurality of battery PACKs PACK connected in series, each PACK is composed of a plurality of battery cell single cells, and one or more acquisition chips are adopted in each PACK to acquire the voltage and the temperature of the single cells in the PACK. The main control module CMU adopts a daisy chain communication mode to communicate with an acquisition chip in the PACK, and the acquisition of all monomer data in the RACK is completed.
The processor 102 is configured to:
determining a current working mode;
controlling the signal processing assembly to process the received daisy chain signal based on the working mode to obtain a processing result; the processing result includes at least one of daisy chain waveform data and BMS data;
and executing the operation corresponding to the working mode on the processing result.
In the present embodiment, the operation mode may be one of a waveform analysis mode and a low power consumption mode; the operation corresponding to the working mode can be at least one of display, storage, analysis, decoding, verification, output and the like. The BMS data may be at least one of voltage data, temperature data, and the like.
For example, in the waveform analysis mode, the signal processing component may be controlled to output daisy-chain waveform data based on the daisy-chain signal, and then perform at least one of displaying, storing, decoding, verifying, and outputting the daisy-chain waveform data. Alternatively, a decoding operation is performed on the daisy chain waveform data, and BMS data may be obtained; a verification operation is performed on the daisy chain waveform data, and it can be determined whether there is erroneous waveform data or not, etc. of the daisy chain waveform data.
In the low power consumption mode, the signal processing component may be controlled to output the BMS data based on the daisy chain signal and then perform at least one of storing, verifying, and outputting the BMS data. Optionally, a verification operation is performed on the BMS data, and it may be determined whether the BMS data has error data.
By applying the device provided by the embodiment of the invention, the daisy chain signal can be processed based on the current working mode to obtain at least one of the waveform data and the BMS data, and then the operation corresponding to the working mode is executed on at least one of the waveform data and the BMS data, so that the data analysis requirement of the BMS can be met.
In this embodiment, the processor may be various types of chips or integrated circuits, for example, the processor includes at least one of a single chip microcomputer, a digital signal processing technology DSP chip, and a field programmable gate array FPGA.
In the present embodiment, the operation corresponding to the operation mode includes at least one of an analysis operation, an output operation, and a storage operation.
In an embodiment of the present invention, based on the foregoing solution, optionally, as shown in fig. 2, the signal processing component 101 includes:
a signal switching circuit 1011, a first signal processing module 1012, and a second signal processing module 1013;
the signal switching circuit 1011 is configured to receive a daisy chain signal of a battery management system BMS and send the daisy chain signal to the first signal processing module and/or the second signal processing module; in some embodiments, the signal switching circuit may receive a control instruction sent by the processor based on the current operating mode, where the control instruction is configured to instruct the signal switching circuit to send the daisy-chained signal to a target signal processing module, and the target signal processing module is one of the first signal processing module and the second signal processing module.
The first signal processing module 1012 is configured to convert the daisy chain signal into daisy chain waveform data and send the daisy chain waveform data to the processor when receiving the daisy chain signal sent by the signal switching circuit; in this embodiment, the first signal processing model may convert the daisy chain signal into a signal with a suitable level, and then convert the signal into a digital signal, where the digital signal is the daisy chain waveform data.
The second signal processing module 1013 is configured to decode the daisy chain signal to obtain BMS data when receiving the daisy chain signal sent by the signal switching circuit, and send the BMS data to the processor. In an embodiment, the second signal processing model may be various types of decoding chips, for example, may be BQ79600 chips.
In an embodiment of the present invention, based on the foregoing solution, optionally, the first signal processing module 1011 includes:
a signal conditioning circuit and an analog-to-digital converter;
and the signal conditioning circuit is used for preprocessing the daisy chain signal under the condition of receiving the daisy chain signal sent by the signal switching circuit. In this embodiment, by preprocessing the daisy chain signal, a daisy chain signal with a proper level can be obtained, and the preprocessed daisy chain signal is transmitted to the analog-to-digital converter, where the level of the preprocessed daisy chain signal meets the requirement of the analog-to-digital converter, and the daisy chain signal can be an analog signal.
The analog-to-digital converter is used for converting the preprocessed daisy chain signal into daisy chain waveform data and sending the daisy chain waveform data to the processor.
In an embodiment of the present invention, based on the foregoing solution, optionally, the processor 102 is configured to:
controlling the signal switching circuit to send the daisy chain signal to the first signal processing module in the case that the operation mode includes a waveform analysis mode;
and controlling the signal switching circuit to send the daisy chain signal to the second signal processing module in the case that the working mode comprises a low power consumption mode.
In an embodiment, the waveform analysis modes may include a first waveform analysis mode and a second waveform analysis mode; the low power consumption modes may include a first low power consumption mode and a second low power consumption mode.
In an embodiment of the present invention, based on the foregoing solution, optionally, the processor 102 is configured to control the signal processing component to output daisy-chain waveform data based on the daisy-chain signal when the operation mode is a preset first waveform analysis mode; and decoding the daisy chain waveform data output by the signal processing component to obtain BMS data. In this embodiment, as shown in fig. 3, in the first waveform analysis mode, the processor may control the signal processing component to perform signal conditioning and digital-to-analog conversion on the daisy-chained signal to obtain the daisy-chained waveform data; the processor may perform operations such as displaying, analyzing, decoding, storing, and outputting the received daisy chain waveform data, may output at least one of the daisy chain waveform data and the BMS data, may control displaying of at least one of the daisy chain waveform data and the BMS data, and may store at least one of the daisy chain waveform data and the BMS data.
In an embodiment of the present invention, based on the foregoing solution, optionally, the processor 102 is configured to: controlling the signal processing component to output daisy chain waveform data based on the daisy chain signal under the condition that the working mode is a preset second waveform analysis mode; decoding the daisy chain waveform data to obtain BMS data; acquiring waveform data segments corresponding to the error data from the daisy chain waveform data under the condition that the error data exist in the BMS data; and generating fault data records according to the error data and the waveform data segments.
In this embodiment, as shown in fig. 4, in the second waveform analysis mode, the processor may control the signal processing component to perform signal conditioning and digital-to-analog conversion on the daisy chain signal to obtain daisy chain waveform data, and transmit the daisy chain model data to the processor, where the processor may perform operations such as displaying, analyzing, decoding, storing, and outputting the received daisy chain waveform data; at least one of the daisy chain waveform data and the BMS data may be outputted, or at least one of the daisy chain waveform data and the BMS data may be controlled to be displayed, or at least one of the daisy chain waveform data and the BMS data may be stored.
In this embodiment, the BMS data may be checked, and if it is checked that there is error data, that is, fault data, in the BMS data, a time point corresponding to the error data may be determined; obtaining a waveform data segment of a target time segment in the daisy chain waveform data according to the time point, and taking the waveform data segment as a fault waveform; the target period of time may include a previous point in time to the point in time and a subsequent point in time to the point in time, and then store the error data and the fault waveform.
In an embodiment of the present invention, based on the foregoing solution, optionally, the processor 102 is configured to control the signal processing component to output BMS data based on the daisy-chain signal when the operation mode is a preset first low power mode; and storing the BMS data. In this embodiment, as shown in fig. 5, in the first low power mode, the processor may control the second signal processing module in the signal processing module, for example, the BQ79600 chip, to decode the daisy chain signal, obtain the BMS data, and then store the BMS data.
In an embodiment of the present invention, based on the foregoing solution, optionally, the processor 102 is configured to control the signal processing component to output BMS data based on the daisy-chain signal when the operation mode is a preset second low power consumption mode; and under the condition that the BMS data has error data, switching the working mode from the second low-power consumption mode to a preset waveform analysis mode. In this embodiment, as shown in fig. 6, in the second low power mode, the processor may control the second signal processing module in the signal processing component, for example, the BQ79600 chip, to decode the daisy chain signal to obtain BMS data, and then verify the BMS data, and if there is error data in the BMS, the current operation mode of the processor may be switched from the second low power mode to the waveform analysis mode to obtain daisy chain waveform data, and the obtained daisy chain waveform data is stored as a fault waveform.
In an embodiment of the present invention, based on the above solution, optionally, the method further includes: a display module 103; the display module 103 is used for displaying at least one of the daisy chain waveform data and the BMS data. In this embodiment, the display module may be various types of display devices, for example, may be a liquid crystal display screen, a touch screen, or the like. Optionally, the display module may be further configured to display system parameters and system states of the signal processing apparatus. In some embodiments, if the display device is a touch screen, the user may send an operation instruction to the processor through the trigger screen to instruct the processor to switch the operation mode or set a system parameter, and so on.
In an embodiment of the present invention, based on the above solution, optionally, the method further includes: a storage module 104; the storage module is used for storing at least one of the daisy chain waveform data and the BMS data. In this embodiment, the storage module may include various types of memories, such as a FLASH memory; the memory may have a long-term daisy chain waveform data storage capability, for example, may store more than 24 hours of daisy chain waveform data; the memory module may also include a memory card, such as an SD card.
In an embodiment of the present invention, based on the above solution, optionally, the method further includes: a control assembly 105;
the control component is used for receiving the selection operation of a user;
the processor is used for determining the mode corresponding to the selection operation as the current working mode.
In an embodiment of the present invention, based on the foregoing solution, optionally, the processor is configured to send at least one of the daisy-chain waveform data and the BMS data to an electronic device through a preset data transmission interface. In this embodiment, the data transmission interface may be at least one of a wired data transmission interface and a wireless data transmission interface, for example, may be a USB interface or the like; the electronic device may be a computer, a cell phone, a tablet device, various wearable devices, and the like.
In an embodiment of the present invention, based on the above scheme, optionally, the power conversion circuit is further included; as shown in fig. 7, the power conversion circuit may be used to convert a power output into a voltage required for each circuit component in the information processing apparatus, and power is supplied to each circuit component through a power supply bus.
In this embodiment, the power supply may be used to supply power to the signal processing device, where the power supply may be a lithium battery, a nickel-metal hydride battery, or other various batteries, and the duration of battery power supply may be greater than 24 hours. In some embodiments, the power supply may be charged through a preset charging interface.
In this embodiment the signal processing means are provided with a housing on which magnetic means are provided for fixing the signal processing means, alternatively the signal processing means can be arranged on an iron frame in the vicinity of the PACK of the power station.
The signal processing device provided by the embodiment of the invention has the daisy chain waveform analysis function and directly analyzes BMS data; the daisy chain signal waveform and the BMS data can be precisely aligned and time synchronized; the volume is small and exquisite, adopts battery power supply, takes magnetism to inhale the device, can directly adsorb near the PACK. Providing a duration exceeding 24H. Has long-time daisy chain waveform storage and BMS data storage functions. The device monitors signal waveforms or BMS data in real time, records daisy chain waveforms and BMS data at fault moment when communication abnormality is identified, and forms fault record.
The embodiment of the invention also provides a signal processing method of the battery management system, which is applied to the processor in the signal processing device, wherein a flow chart of the method is shown in fig. 8, and the method specifically comprises the following steps:
s801: determining a current working mode;
s802: controlling the signal processing component to process the received daisy chain signal based on the working mode under the condition that the daisy chain signal of the battery management system BMS is received, and obtaining a processing result, wherein the processing result comprises at least one of daisy chain waveform data and BMS data;
s803: and executing the operation corresponding to the working mode on the processing result.
By applying the method provided by the embodiment of the invention, the daisy chain signal can be processed based on the current working mode to obtain at least one of the waveform data and the BMS data, and then the operation corresponding to the working mode is executed on at least one of the waveform data and the BMS data, so that the data analysis requirement of the BMS can be met.
It should be noted that, in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described as different from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other. For the apparatus class embodiments, the description is relatively simple as it is substantially similar to the method embodiments, and reference is made to the description of the method embodiments for relevant points.
Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
For convenience of description, the above devices are described as being functionally divided into various units, respectively. Of course, the functions of each element may be implemented in the same piece or pieces of software and/or hardware when implementing the present invention.
From the above description of embodiments, it will be apparent to those skilled in the art that the present invention may be implemented in software plus a necessary general hardware platform. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a storage medium, such as a ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the embodiments or some parts of the embodiments of the present invention.
The above has described in detail a signal processing device of a battery management system provided by the present invention, and specific examples are applied herein to illustrate the principles and embodiments of the present invention, and the above examples are only used to help understand the method and core idea of the present invention; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present invention, the present description should not be construed as limiting the present invention in view of the above.
Claims (13)
1. A signal processing apparatus of a battery management system, comprising:
a signal processing component and a processor;
the signal processing component is used for receiving the daisy chain signal of the battery management system BMS and processing the received daisy chain signal;
the processor is configured to:
determining a current working mode;
controlling the signal processing assembly to process the received daisy chain signal based on the working mode to obtain a processing result; the processing result includes at least one of daisy chain waveform data and BMS data;
and executing the operation corresponding to the working mode on the processing result.
2. The apparatus of claim 1, wherein the signal processing component comprises:
the device comprises a signal switching circuit, a first signal processing module and a second signal processing module;
the signal switching circuit is used for receiving the daisy chain signal sent by the signal acquisition component and sending the daisy chain signal to the first signal processing module and/or the second signal processing module;
the first signal processing module is used for converting the daisy chain signal into daisy chain waveform data and transmitting the daisy chain waveform data to the processor under the condition that the daisy chain signal transmitted by the signal switching circuit is received;
the second signal processing module is configured to decode the daisy chain signal to obtain BMS data and send the BMS data to the processor when the daisy chain signal sent by the signal switching circuit is received.
3. The apparatus of claim 2, wherein the first signal processing module comprises:
a signal conditioning circuit and an analog-to-digital converter;
the signal conditioning circuit is used for preprocessing the daisy chain signal under the condition of receiving the daisy chain signal sent by the signal switching circuit;
the analog-to-digital converter is used for converting the preprocessed daisy chain signal into daisy chain waveform data and sending the daisy chain waveform data to the processor.
4. The apparatus of claim 2, wherein the processor is configured to:
controlling the signal switching circuit to send the daisy chain signal to the first signal processing module in the case that the operation mode includes a waveform analysis mode;
and controlling the signal switching circuit to send the daisy chain signal to the second signal processing module in the case that the working mode comprises a low power consumption mode.
5. The apparatus of claim 1, wherein the processor is configured to:
controlling the signal processing component to output daisy chain waveform data based on the daisy chain signal under the condition that the working mode is a preset first waveform analysis mode;
and decoding the daisy chain waveform data to obtain BMS data.
6. The apparatus of claim 1, wherein the processor is configured to:
controlling the signal processing component to output daisy chain waveform data based on the daisy chain signal under the condition that the working mode is a preset second waveform analysis mode;
decoding the daisy chain waveform data to obtain BMS data;
acquiring waveform data segments corresponding to the error data from the daisy chain waveform data under the condition that the error data exist in the BMS data;
and generating fault data records according to the error data and the waveform data segments.
7. The apparatus of claim 1, wherein the processor is configured to:
controlling the signal processing component to output BMS data based on the daisy chain signal under the condition that the working mode is a preset first low-power consumption mode;
and storing the BMS data.
8. The apparatus of claim 1, wherein the processor is configured to:
controlling the signal processing component to output BMS data based on the daisy chain signal under the condition that the working mode is a preset second low-power consumption mode;
and under the condition that the BMS data has error data, switching the working mode from the second low-power consumption mode to a preset waveform analysis mode.
9. The apparatus as recited in claim 1, further comprising: a display module;
the display module is used for displaying at least one of the daisy chain waveform data and the BMS data.
10. The apparatus as recited in claim 1, further comprising: a storage module;
the storage module is used for storing at least one of the daisy chain waveform data and the BMS data.
11. The apparatus as recited in claim 1, further comprising: a control assembly;
the control component is used for receiving the selection operation of a user;
the processor is used for determining the mode corresponding to the selection operation as the current working mode.
12. The apparatus of claim 1, wherein the processor is configured to send at least one of the daisy-chain waveform data and the BMS data to an electronic device via a preset data transmission interface.
13. A signal processing method of a battery management system, applied to a processor in a signal processing apparatus, the signal processing apparatus further comprising a signal processing component, the method comprising:
determining a current working mode;
controlling the signal processing component to process the received daisy chain signal based on the working mode under the condition that the daisy chain signal of the battery management system BMS is received, and obtaining a processing result, wherein the processing result comprises at least one of daisy chain waveform data and BMS data;
and executing the operation corresponding to the working mode on the processing result.
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| CN202310140719.4A Pending CN116127278A (en) | 2023-02-13 | 2023-02-13 | Signal processing device and method for battery management system |
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| CN (1) | CN116127278A (en) |
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- 2023-02-13 CN CN202310140719.4A patent/CN116127278A/en active Pending
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