CN117692037A - Data receiving method, device and equipment of battery management unit and storage medium - Google Patents
Data receiving method, device and equipment of battery management unit and storage medium Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
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Abstract
The invention discloses a data receiving method, a device, equipment and a storage medium of a battery management unit. The multi-antenna received signal combination is utilized, so that the signal receiving opportunity of the battery management unit is improved, and the stability of the received signal is improved; meanwhile, based on the combination of performance parameters, the enhancement of signals is realized, and the quality of the signals is improved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, a device, and a storage medium for receiving data from a battery management unit.
Background
The battery pack applied to the electric automobile power system consists of a plurality of battery modules, and each battery module comprises a plurality of connected battery cells. Each battery module is provided with a single monitoring unit (Cell Measure Unit, abbreviated as CMU) which is used for collecting single battery parameters in the battery module and controlling the state of the single battery. The battery pack is generally further provided with a battery management unit (Battery Management Unit, abbreviated as BMU) for processing the parameters collected by the battery module control unit, and performing status monitoring and status control on the whole battery pack.
At present, the battery management unit mainly receives data in a wireless or wired mode, whether wireless or preferential, and adopts a fixed single antenna and a protocol to receive the data, and when the single antenna receives the data in a blocking and shielding scene, the signal can not be improved due to single received signal, so that the data is received inaccurately.
Disclosure of Invention
The invention mainly aims to solve the problems of unstable signals and poor quality of the existing battery management unit when receiving signals.
The first aspect of the present invention provides a data receiving method of a battery management unit, where the battery management unit is provided with a communication interface, and the communication interface is connected with a plurality of antennas, where each antenna corresponds to a receiving path, and the data receiving method includes:
receiving radio frequency signals transmitted by each antenna connected with the communication interface, and extracting performance parameters of each radio frequency signal;
combining the radio frequency signals based on the performance parameters by utilizing a preset diversity receiving mode to obtain a total signal;
and analyzing the total signal to obtain the battery parameters of each battery module.
Optionally, if the number of the communication interfaces is the same as the number of the antennas; the receiving the radio frequency signals transmitted by the antennas connected with the communication interface and extracting the performance parameters of the radio frequency signals comprises the following steps:
collecting radio frequency signals transmitted by antennas connected with the communication interfaces, and determining a main signal and a plurality of compensation signals from all the radio frequency signals;
and extracting the performance parameters of the main signal and each compensation signal in sequence.
Optionally, if the number of the communication interfaces is one, the battery management unit further includes an antenna switch unit provided with a plurality of antenna interfaces, the antenna switch unit is connected with the communication interfaces, and each antenna interface is connected with one antenna; the receiving the radio frequency signals transmitted by the antennas connected with the communication interface and extracting the performance parameters of the radio frequency signals comprises the following steps:
controlling each antenna interface to be sequentially communicated with the communication interface by utilizing a preset polling rule;
collecting radio frequency signals transmitted by an antenna on an antenna interface after being connected, and determining a main signal and a plurality of compensation signals from all the radio frequency signals;
and extracting the performance parameters of the main signal and each compensation signal in sequence.
Optionally, the combining the radio frequency signals based on the performance parameters by using a preset diversity receiving mode to obtain a total signal includes:
determining compensation parameters of receiving paths corresponding to the antennas based on a preset diversity receiving mode;
and combining the performance parameters of the main signal and the compensation signals based on the compensation parameters of the receiving paths to obtain a total signal.
Optionally, the compensation parameter includes a combination mode of each performance parameter; combining the performance parameters of the main signal and each compensation signal based on the compensation parameters of each receiving path to obtain a total signal, including:
and combining the performance parameters of the compensation signals according to the performance parameters corresponding to the main signals based on the combination mode corresponding to the receiving paths to obtain total signals.
Optionally, the diversity receiving mode includes at least one of a space diversity receiving mode, a polarization diversity receiving mode, a frequency diversity receiving mode and a time diversity receiving mode;
the combining mode comprises at least one of an optimal selection mode, an equal gain addition mode and a maximum ratio addition mode.
Optionally, before receiving the radio frequency signals transmitted by the antennas connected to the communication interface, the method further includes:
determining a current communication mode of the battery management unit, and selecting a corresponding communication protocol from a preset protocol library based on the communication mode;
and adjusting the receiving paths corresponding to the antennas based on the communication protocol so as to control the antennas to receive radio frequency signals.
The second aspect of the present invention provides a data receiving apparatus, applied to a battery management unit, where the battery management unit is provided with a communication interface, and the communication interface is connected with a plurality of antennas, where each antenna corresponds to a receiving path, and the data receiving apparatus includes:
the receiving module is used for receiving the radio frequency signals transmitted by the antennas connected with the communication interface and extracting the performance parameters of the radio frequency signals;
the combining module is used for combining the radio frequency signals based on the performance parameters by utilizing a preset diversity receiving mode to obtain a total signal;
and the analysis module is used for analyzing the total signal to obtain the battery parameters of each battery module.
Optionally, if the number of the communication interfaces is the same as the number of the antennas; the receiving module includes:
the first acquisition unit is used for acquiring radio frequency signals transmitted by the antennas connected with the communication interfaces and determining a main signal and a plurality of compensation signals from all the radio frequency signals;
and the first extraction unit is used for sequentially extracting the performance parameters of the main signal and each compensation signal.
Optionally, if the number of the communication interfaces is one, the battery management unit further includes an antenna switch unit provided with a plurality of antenna interfaces, the antenna switch unit is connected with the communication interfaces, and each antenna interface is connected with one antenna; the receiving module further includes:
the polling unit is used for controlling each antenna interface to be sequentially communicated with the communication interface by utilizing a preset polling rule;
the second acquisition unit is used for acquiring radio frequency signals transmitted by the antennas on the connected antenna interfaces and determining a main signal and a plurality of compensation signals from all the radio frequency signals;
and the second extraction unit is used for sequentially extracting the performance parameters of the main signal and each compensation signal.
Optionally, the merging module includes:
the determining unit is used for determining the compensation parameters of the receiving paths corresponding to the antennas based on a preset diversity receiving mode;
and the merging unit is used for merging the performance parameters of the main signal and the compensation signals based on the compensation parameters of the receiving paths to obtain a total signal.
Optionally, the compensation parameter includes a combination mode of each performance parameter; the merging unit is specifically configured to:
and combining the performance parameters of the compensation signals according to the performance parameters corresponding to the main signals based on the combination mode corresponding to the receiving paths to obtain total signals.
Optionally, the diversity receiving mode includes at least one of a space diversity receiving mode, a polarization diversity receiving mode, a frequency diversity receiving mode and a time diversity receiving mode;
the combining mode comprises at least one of an optimal selection mode, an equal gain addition mode and a maximum ratio addition mode.
Optionally, the data receiving device further includes: the protocol adjustment module is specifically used for:
determining a current communication mode of the battery management unit, and selecting a corresponding communication protocol from a preset protocol library based on the communication mode;
and adjusting the receiving paths corresponding to the antennas based on the communication protocol so as to control the antennas to receive radio frequency signals.
A third aspect of the present invention provides an electronic device, comprising: the battery management unit according to the first aspect includes a memory, a processor, and a computer program stored in the memory and executable on the processor, the processor implementing each step in the data receiving method of the battery management unit provided in the first aspect when executing the computer program.
A fourth aspect of the present invention provides a computer-readable storage medium storing a computer program which, when executed by a processor, implements the steps in the data receiving method of the battery management unit provided in the first aspect.
According to the technical scheme, the multi-antenna is arranged to receive radio frequency signals on different receiving paths, performance parameters of the radio frequency signals received by each antenna are extracted, the performance parameters are combined by utilizing a preset diversity receiving mode to obtain a total signal, and analysis is carried out based on the total signal to obtain battery parameters of each battery module. The multi-antenna received signal combination is utilized, so that the signal receiving opportunity of the battery management unit is improved, and the stability of the received signal is improved; meanwhile, based on the combination of performance parameters, the enhancement of signals is realized, and the quality of the signals is improved.
Drawings
FIG. 1 is a schematic diagram of a battery management system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a battery management unit according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of another embodiment of a battery management unit;
FIG. 4 is a schematic diagram of an embodiment of a data receiving method according to the present invention;
FIG. 5 is a schematic diagram of an embodiment of an antenna switch unit according to the present invention;
fig. 6 is a schematic structural diagram of a data receiving device according to an embodiment of the present invention;
fig. 7 is a schematic diagram of an embodiment of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to solve the technical problems, the embodiment of the invention provides a data receiving method, a device, equipment and a storage medium of a battery management unit.
The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments described herein may be implemented in other sequences than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or apparatus.
For ease of understanding, the following describes a specific flow of an embodiment of the present invention, referring to fig. 4, a first embodiment of a method for receiving data of a battery management unit in an embodiment of the present invention is mainly used for controlling the battery management unit to receive data in a battery management system, where the battery management system includes at least one battery module 110, a battery management unit 120 and a vehicle controller 130; a unit monitoring unit 140 is disposed on each battery module 110, and the unit monitoring unit 140 transmits the battery parameters of the corresponding battery module 110 to the battery management unit 120 through wireless communication; each unit monitoring unit 140 corresponds to one battery module 110, and is configured to monitor parameters of each battery on the battery module 110 in real time; at least two first antennas 121 are disposed on the battery management unit 120, and the battery management unit 120 receives, through each first antenna 121, the battery parameters sent by each unit monitoring unit 140, and transmits the battery parameters to the vehicle controller 130, so as to achieve power supply optimization of the whole vehicle, as shown in fig. 1.
In this embodiment, the unit monitoring unit 140 and the battery management unit 120 are both configured as modules with a wireless communication function, the unit monitoring unit 140 collects the voltage and the current of the battery module 110, converts the voltage and the current into radio frequency signals, and sends the radio frequency signals to the battery management unit 120 in a wireless manner, wherein the wireless manner may be bluetooth, broadcasting, or the like, such as a wireless signal of 2.4GHz, and the specific unit monitoring unit 140 and the battery management unit 120 are configured by bluetooth low energy chips, such as the unit monitoring unit 140 includes a signal collection circuit and a bluetooth low energy circuit, and is configured to collect real-time parameters of the battery on the battery module 110, such as the voltage and the current, and the bluetooth low energy circuit receives the voltage and the current collected by the signal collection circuit, converts the voltage and the current into radio frequency signals, and sends the radio frequency signals through bluetooth, that is, the bluetooth low energy chip is designed as the bluetooth low energy circuit, so as to realize sending the voltage and the current on the battery module 110 to the battery management unit 120.
In this embodiment, after receiving the radio frequency signal through the wireless communication manner, the battery management unit 120 converts the radio frequency signal into a digital signal and sends the digital signal to the vehicle controller 130 through the bus, so as to monitor each battery module of the vehicle, and simplify the harness layout complexity of the chassis of the vehicle. Wherein the bus includes one of UART, I2C, SPI and CAN.
Specifically, the battery management unit 120 includes a first wireless microcontroller 122 and a communication interface chip 123 connected to the first wireless microcontroller 122;
the first wireless microcontroller 122 is connected to the at least two first antennas 121, receives each of the battery parameters through the first antennas 121, and transmits the battery parameters to the vehicle controller 130 through the communication interface chip 123.
Further, as shown in fig. 2 and 3, the first wireless microcontroller 122 includes a first microcontroller 1221 and a first wireless radio frequency chip 1222; an input terminal of the first microcontroller 1221 is connected to an output terminal of the first radio frequency chip 1222, and an output terminal of the first microcontroller 1221 is connected to the communication interface chip 1222; the input of the first radio frequency chip 1222 is connected to the at least two first antennas 121.
In another embodiment, the first wireless microcontroller 122 is a wireless multi-protocol SOC chip 1223.
In this embodiment, when the BMU receives the wireless data sent by the CMU, the quality of the wireless signal is reduced due to the influence of the environment in the vehicle, and at this time, the BMU wireless communication module receives the wireless data by using a multi-antenna diversity reception mode, so that the stability of the signal reception can be increased.
In this embodiment, a communication interface is further provided on the battery management unit, and the communication interface is connected to a plurality of antennas, where the communication interface is a communication interface of the first radio frequency chip, and the first radio frequency chip may select a chip supporting multi-antenna connection according to an actual situation, where each antenna corresponds to a receiving path.
410. Receiving radio frequency signals transmitted by all antennas connected with a communication interface, and extracting performance parameters of all radio frequency signals;
in this embodiment, the first wireless rf chip receives the rf signals sent by the monomer monitoring unit through a plurality of antennas (i.e., the first antenna 121 in the figure) connected with the communication interface, and then diversity is performed on the plurality of rf signals to obtain a plurality of groups of rf signals.
The radio frequency signals received by each antenna come from different paths, specifically, when the antennas on the battery management unit are set, corresponding receiving paths are configured for each antenna, and the receiving paths can be configured according to the setting positions or orientations of the antennas.
In practical application, the receiving path is determined based on the positional relationship between the vehicle internal structure and the battery module, and after the radio frequency signals are emitted from the antennas on the single monitoring unit, the radio frequency signals are reflected or scattered by the vehicle internal structure and then enter the receiving path corresponding to the first antenna, so that the antennas (the first antenna) on the battery management unit can receive radio frequency signals after different attenuation.
After the first radio frequency chip receives the radio frequency signals on each receiving path, the radio frequency signals are analyzed by utilizing a signal analysis rule or algorithm to obtain corresponding performance parameters.
In another embodiment, the first radio frequency chip is a chip capable of supporting multiple antenna interfaces, and in this case, the first radio frequency chip may directly use multiple antennas, that is, if the number of the communication interfaces is the same as the number of the antennas; the receiving the radio frequency signals transmitted by the antennas connected with the communication interface and extracting the performance parameters of the radio frequency signals comprises the following steps:
collecting radio frequency signals transmitted by antennas connected with the communication interfaces, and determining a main signal and a plurality of compensation signals from all the radio frequency signals;
and extracting the performance parameters of the main signal and each compensation signal in sequence.
Of course, the main signal and the compensation signal do not have to be distinguished, and the performance parameter of the radio frequency signal may be directly extracted, for example, the component of the corresponding radio frequency signal, such as the spatial component of the radio frequency signal, may be resolved based on the preset receiving mode of each antenna, and the component may be used as the performance parameter.
Furthermore, when the first radio frequency chip does not support multiple receiving antennas, an antenna switch unit can be arranged to realize expansion of multiple antennas, namely, if the number of the communication interfaces is one, the battery management unit further comprises an antenna switch unit provided with a plurality of antenna interfaces, the antenna switch unit is connected with the communication interfaces, and each antenna interface is connected with one antenna; the receiving the radio frequency signals transmitted by the antennas connected with the communication interface and extracting the performance parameters of the radio frequency signals comprises the following steps:
controlling each antenna interface to be sequentially communicated with the communication interface by utilizing a preset polling rule;
collecting radio frequency signals transmitted by an antenna on an antenna interface after being connected, and determining a main signal and a plurality of compensation signals from all the radio frequency signals;
and extracting the performance parameters of the main signal and each compensation signal in sequence.
The antenna switch unit 150 is disposed between the at least two first antennas 121 and the first wireless microcontroller 122; the antenna switch unit 150 is provided with a control interface and at least two antenna interfaces, each of the antenna interfaces is connected to one of the first antennas, and the control interface is connected to the first wireless microcontroller 122 through a control bus, as shown in fig. 5.
In practical applications, the specific connection and control method between the antenna switch unit 150 and the first wireless microcontroller 122 will vary according to the type, interface type and application requirements of the first rf chip and the antenna switch unit 150. The antenna switching unit 150 allows switching between a plurality of antennas, in which three antennas are used as an example, and the actual number of antennas is determined according to circumstances so as to connect different antennas to the communication interface chip 123. By periodically switching antennas and receiving signals from different antennas, the opportunity for signal reception can be increased, interference reduced, and reception performance improved.
420. Combining the radio frequency signals based on the performance parameters by utilizing a preset diversity receiving mode to obtain a total signal;
the diversity reception system includes at least one of a space diversity reception system, a polarization diversity reception system, a frequency diversity reception system, and a time diversity reception system.
In this embodiment, a compensation parameter of a receiving path corresponding to each antenna is determined based on a preset diversity receiving mode; and combining the performance parameters of the main signal and the compensation signals based on the compensation parameters of the receiving paths to obtain a total signal.
In another embodiment, the compensation parameter includes a combination of performance parameters; combining the performance parameters of the main signal and each compensation signal based on the compensation parameters of each receiving path to obtain a total signal, including: and combining the performance parameters of the compensation signals according to the performance parameters corresponding to the main signals based on the combination mode corresponding to the receiving paths to obtain total signals, wherein the combination mode comprises at least one of an optimal selection formula, an equal gain addition formula and a maximum ratio addition formula.
In practical applications, the battery management unit uses a multi-antenna receiving mode to receive signals of different paths simultaneously by using multiple antennas, and then selects and combines the signals into a total signal to reduce the influence of signal fading, which is called diversity reception. Diversity is to combine the scattered signals together, and the maximum signal gain can be obtained after proper combination as long as the signals are mutually independent. The diversity reception method can be further divided into: space diversity, polarization diversity, frequency diversity, time diversity. The merging mode is as follows: optimum selection formula, equal gain addition formula, maximum ratio addition formula. The specific method for diversity and combining is selected according to the actual situation.
Furthermore, the multi-antenna and diversity receiving mode adopted in the embodiment can overcome the blocking and shielding problems by receiving signals from different directions. Even if some antennas are blocked, other antennas can still receive signals, thereby increasing the chance of reception. In addition, multi-antenna diversity reception can compensate for signal attenuation caused by path loss by receiving signals from multiple antennas. The received signals may be combined by a suitable signal processing algorithm to improve the strength and quality of the received signal.
430. And analyzing the total signal to obtain the battery parameters of each battery module.
In this embodiment, the first radio frequency chip converts the total signal into a digital signal, demodulates the digital signal by using a data frame format generated by handshaking the battery management unit and the monomer monitoring unit, and extracts the battery parameter in the total signal.
In another embodiment, before receiving the radio frequency signals transmitted by the antennas connected to the communication interface, the method further includes:
determining a current communication mode of the battery management unit, and selecting a corresponding communication protocol from a preset protocol library based on the communication mode;
and adjusting the receiving paths corresponding to the antennas based on the communication protocol so as to control the antennas to receive radio frequency signals.
In this embodiment, when the BMU and the CMU in the battery management system perform wireless communication, the wireless communication can be performed by using a multi-protocol manner, so that the requirements in specific situations can be satisfied. For example, under the condition of ultra-low power consumption or ultra-low delay when the CMU and the BMU communicate, the existing protocol cannot meet the requirement in this aspect, and the 2.4GHz wireless private protocol can be used to realize the requirement of low delay and low power consumption; when some subsequent debugging or battery management systems are used, for example, when the CMU or BMU is required to be independently debugged, the BMU or the CMU which is required to obtain data can be connected with a mobile phone or other Bluetooth terminals through a Bluetooth wireless transmission protocol, and the data is sent or received through software on the equipment; the data can be accessed to the Internet through the WIFI, so that the data networking and the like are realized. The multi-protocol mode is used for enriching the use scenes, so that the multi-scene use is satisfied.
By supporting multiple protocols in wireless communication, and simultaneously supporting 2.4GHz, bluetooth, WIFI and other protocols, different wireless communication protocols fully exert different characteristics and advantages, and the most suitable protocol can be selected according to specific use situations, and the multiple protocols can be set as protocols used when the single monitoring unit 140 communicates with different terminals or modules, for example, bluetooth protocols adopted when the single monitoring unit 140 communicates with the battery management unit 120, and communication protocols adopting the Internet when communicating with an automobile control module or APP.
In the embodiment of the invention, a plurality of antennas are arranged on the battery management unit and are used for receiving radio frequency signals transmitted by all antennas connected with the communication interface and extracting performance parameters of all radio frequency signals; combining the radio frequency signals based on the performance parameters by utilizing a preset diversity receiving mode to obtain a total signal; and analyzing the total signal to obtain the battery parameters of each battery module. The arrangement of the multiple antennas improves the stability and reliability of signal receiving of the battery management unit, and meanwhile, the influence of the environment in the vehicle on signals can be reduced.
Further, by processing and combining signals received on different antennas, the target signal may be selectively enhanced and the effect of the source of interference may be reduced. The multiple antenna and diversity reception approach can overcome the blocking and shadowing problems by receiving signals from different directions. Even if some antennas are blocked, other antennas can still receive signals, thereby increasing the chance of reception.
Furthermore, the corresponding communication protocol is selected through the communication mode, so that the setting of multiple protocols in the battery management unit is realized, and wireless data can be conveniently received and transmitted in multiple application scenes.
The above description is made on the data receiving method of the battery management unit in the embodiment of the present invention, and the following description is made on the data receiving device in the embodiment of the present invention, where the device is applied to the battery management unit, the battery management unit is provided with a communication interface, and the communication interface is connected with a plurality of antennas, where each antenna corresponds to a receiving path, and referring to fig. 6, one embodiment of the data receiving device in the embodiment of the present invention includes:
the receiving module 610 is configured to receive radio frequency signals transmitted by the antennas connected to the communication interface, and extract performance parameters of the radio frequency signals;
the combining module 620 is configured to combine the radio frequency signals based on the performance parameters by using a preset diversity receiving manner to obtain a total signal;
and the analysis module 630 is configured to analyze the total signal to obtain battery parameters of each battery module.
Optionally, if the number of the communication interfaces is the same as the number of the antennas; the receiving module 610 includes:
the first collection unit 6101 is configured to collect radio frequency signals transmitted by the antennas connected to the communication interfaces, and determine a main signal and a plurality of compensation signals from all the radio frequency signals;
a first extracting unit 6102, configured to sequentially extract the performance parameters of the main signal and each of the compensation signals.
Optionally, if the number of the communication interfaces is one, the battery management unit further includes an antenna switch unit provided with a plurality of antenna interfaces, the antenna switch unit is connected with the communication interfaces, and each antenna interface is connected with one antenna; the receiving module 610 further includes:
a polling unit 6103, configured to control each antenna interface to be sequentially connected to the communication interface by using a preset polling rule;
the second collection unit 6104 is configured to collect radio frequency signals transmitted by the antennas on the antenna interface after being turned on, and determine a main signal and a plurality of compensation signals from all the radio frequency signals;
a second extracting unit 6105, configured to sequentially extract the performance parameters of the main signal and each of the compensation signals.
Optionally, the merging module 620 includes:
a determining unit 6201, configured to determine a compensation parameter of a reception path corresponding to each antenna based on a preset diversity reception manner;
and a combining unit 6202, configured to combine the performance parameters of the main signal and each of the compensation signals based on the compensation parameters of each of the reception paths, to obtain a total signal.
Optionally, the compensation parameter includes a combination mode of each performance parameter; the merging unit 6202 specifically is configured to:
and combining the performance parameters of the compensation signals according to the performance parameters corresponding to the main signals based on the combination mode corresponding to the receiving paths to obtain total signals.
Optionally, the diversity receiving mode includes at least one of a space diversity receiving mode, a polarization diversity receiving mode, a frequency diversity receiving mode and a time diversity receiving mode;
the combining mode comprises at least one of an optimal selection mode, an equal gain addition mode and a maximum ratio addition mode.
Optionally, the data receiving device further includes: the protocol adjustment module 640 is specifically configured to:
determining a current communication mode of the battery management unit, and selecting a corresponding communication protocol from a preset protocol library based on the communication mode;
and adjusting the receiving paths corresponding to the antennas based on the communication protocol so as to control the antennas to receive radio frequency signals.
In the embodiment of the invention, the radio frequency signals on different receiving paths are received by arranging multiple antennas, the performance parameters of the radio frequency signals received by each antenna are extracted, the performance parameters are combined by utilizing a preset diversity receiving mode to obtain a total signal, and the total signal is analyzed to obtain the battery parameters of each battery module. The multi-antenna received signal combination is utilized, so that the signal receiving opportunity of the battery management unit is improved, and the stability of the received signal is improved; meanwhile, based on the combination of performance parameters, the enhancement of signals is realized, and the quality of the signals is improved.
The data receiving apparatus in the embodiment of the present invention is described in detail above in fig. 6 from the point of view of the modularized functional entity, and the electronic device in the embodiment of the present invention is described in detail below from the point of view of hardware processing.
Fig. 7 is a schematic diagram of an electronic device according to an embodiment of the present invention, where the electronic device 700 may have a relatively large difference due to configuration or performance, and may include one or more processors (e.g., one or more CPUs) 710 and a memory 720, and one or more storage media 730 (e.g., one or more mass storage devices) storing application programs 733 or data 732. Wherein memory 720 and storage medium 730 may be transitory or persistent. The program stored in the storage medium 730 may include one or more modules (not shown), each of which may include a series of instruction operations in the electronic device 700. Still further, the processor 710 may be configured to communicate with the storage medium 730 and execute a series of instruction operations in the storage medium 730 on the electronic device 700.
The electronic device 700 may also include one or more power supplies 740, one or more wired or wireless network interfaces 750, one or more input/output interfaces 760, and/or one or more operating systems 731, such as WindowsServe, macOSX, unix, linux, freeBSD, and the like. Those skilled in the art will appreciate that the electronic device structure shown in fig. 7 may also include more or fewer components than shown, or may combine certain components, or may be arranged in a different arrangement of components.
The embodiment of the invention also provides a computer readable storage medium, which can be a nonvolatile computer readable storage medium, and can also be a volatile computer readable storage medium, wherein the computer readable storage medium stores instructions or a computer program, when the instructions or the computer program are executed, a computer executes a data receiving method of a battery management unit, wherein a communication interface is arranged on the battery management unit, the communication interface is connected with a plurality of antennas, and each antenna corresponds to one receiving path, and the method comprises the following steps:
receiving radio frequency signals transmitted by each antenna connected with the communication interface, and extracting performance parameters of each radio frequency signal;
combining the radio frequency signals based on the performance parameters by utilizing a preset diversity receiving mode to obtain a total signal;
and analyzing the total signal to obtain the battery parameters of each battery module.
Optionally, if the number of the communication interfaces is the same as the number of the antennas; the receiving the radio frequency signals transmitted by the antennas connected with the communication interface and extracting the performance parameters of the radio frequency signals comprises the following steps:
collecting radio frequency signals transmitted by antennas connected with the communication interfaces, and determining a main signal and a plurality of compensation signals from all the radio frequency signals;
and extracting the performance parameters of the main signal and each compensation signal in sequence.
Optionally, if the number of the communication interfaces is one, the battery management unit further includes an antenna switch unit provided with a plurality of antenna interfaces, the antenna switch unit is connected with the communication interfaces, and each antenna interface is connected with one antenna; the receiving the radio frequency signals transmitted by the antennas connected with the communication interface and extracting the performance parameters of the radio frequency signals comprises the following steps:
controlling each antenna interface to be sequentially communicated with the communication interface by utilizing a preset polling rule;
collecting radio frequency signals transmitted by an antenna on an antenna interface after being connected, and determining a main signal and a plurality of compensation signals from all the radio frequency signals;
and extracting the performance parameters of the main signal and each compensation signal in sequence.
Optionally, the combining the radio frequency signals based on the performance parameters by using a preset diversity receiving mode to obtain a total signal includes:
determining compensation parameters of receiving paths corresponding to the antennas based on a preset diversity receiving mode;
and combining the performance parameters of the main signal and the compensation signals based on the compensation parameters of the receiving paths to obtain a total signal.
Optionally, the compensation parameter includes a combination mode of each performance parameter; combining the performance parameters of the main signal and each compensation signal based on the compensation parameters of each receiving path to obtain a total signal, including:
and combining the performance parameters of the compensation signals according to the performance parameters corresponding to the main signals based on the combination mode corresponding to the receiving paths to obtain total signals.
Optionally, the diversity receiving mode includes at least one of a space diversity receiving mode, a polarization diversity receiving mode, a frequency diversity receiving mode and a time diversity receiving mode;
the combining mode comprises at least one of an optimal selection mode, an equal gain addition mode and a maximum ratio addition mode.
Optionally, before receiving the radio frequency signals transmitted by the antennas connected to the communication interface, the method further includes:
determining a current communication mode of the battery management unit, and selecting a corresponding communication protocol from a preset protocol library based on the communication mode;
and adjusting the receiving paths corresponding to the antennas based on the communication protocol so as to control the antennas to receive radio frequency signals.
It will be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process of the system or apparatus and unit described above may refer to the corresponding process in the foregoing method embodiment, which is not repeated herein.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, or other various media capable of storing program codes.
The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The data receiving method of the battery management unit is characterized in that a communication interface is arranged on the battery management unit and is connected with a plurality of antennas, wherein each antenna corresponds to one receiving path, and the data receiving method comprises the following steps:
receiving radio frequency signals transmitted by each antenna connected with the communication interface, and extracting performance parameters of each radio frequency signal;
combining the radio frequency signals based on the performance parameters by utilizing a preset diversity receiving mode to obtain a total signal;
and analyzing the total signal to obtain the battery parameters of each battery module.
2. The data receiving method according to claim 1, wherein if the number of the communication interfaces is the same as the number of the antennas; the receiving the radio frequency signals transmitted by the antennas connected with the communication interface and extracting the performance parameters of the radio frequency signals comprises the following steps:
collecting radio frequency signals transmitted by antennas connected with the communication interfaces, and determining a main signal and a plurality of compensation signals from all the radio frequency signals;
and extracting the performance parameters of the main signal and each compensation signal in sequence.
3. The data receiving method according to claim 2, wherein if the number of the communication interfaces is one, the battery management unit further includes an antenna switch unit provided with a plurality of antenna interfaces, the antenna switch unit is connected to the communication interfaces, and each of the antenna interfaces is connected to one antenna; the receiving the radio frequency signals transmitted by the antennas connected with the communication interface and extracting the performance parameters of the radio frequency signals comprises the following steps:
controlling each antenna interface to be sequentially communicated with the communication interface by utilizing a preset polling rule;
collecting radio frequency signals transmitted by an antenna on an antenna interface after being connected, and determining a main signal and a plurality of compensation signals from all the radio frequency signals;
and extracting the performance parameters of the main signal and each compensation signal in sequence.
4. A data receiving method according to claim 2 or 3, wherein said combining each of said radio frequency signals based on each of said performance parameters using a preset diversity reception scheme to obtain a total signal comprises:
determining compensation parameters of receiving paths corresponding to the antennas based on a preset diversity receiving mode;
and combining the performance parameters of the main signal and the compensation signals based on the compensation parameters of the receiving paths to obtain a total signal.
5. The data receiving method according to claim 4, wherein the compensation parameter includes a combination of performance parameters; combining the performance parameters of the main signal and each compensation signal based on the compensation parameters of each receiving path to obtain a total signal, including:
and combining the performance parameters of the compensation signals according to the performance parameters corresponding to the main signals based on the combination mode corresponding to the receiving paths to obtain total signals.
6. The data receiving method according to claim 5, wherein the diversity receiving method includes at least one of a space diversity receiving method, a polarization diversity receiving method, a frequency diversity receiving method, and a time diversity receiving method;
the combining mode comprises at least one of an optimal selection mode, an equal gain addition mode and a maximum ratio addition mode.
7. The data receiving method according to claim 1, further comprising, before receiving the radio frequency signals transmitted from the antennas connected to the communication interface:
determining a current communication mode of the battery management unit, and selecting a corresponding communication protocol from a preset protocol library based on the communication mode;
and adjusting the receiving paths corresponding to the antennas based on the communication protocol so as to control the antennas to receive radio frequency signals.
8. The utility model provides a data receiving arrangement, is applied to battery management unit, its characterized in that, be equipped with communication interface on the battery management unit, just communication interface is connected with a plurality of antennas, and wherein, every antenna corresponds a receiving path, data receiving arrangement includes:
the receiving module is used for receiving the radio frequency signals transmitted by the antennas connected with the communication interface and extracting the performance parameters of the radio frequency signals;
the combining module is used for combining the radio frequency signals based on the performance parameters by utilizing a preset diversity receiving mode to obtain a total signal;
and the analysis module is used for analyzing the total signal to obtain the battery parameters of each battery module.
9. An electronic device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor, when executing the computer program, implements the steps of the data receiving method of the battery management unit according to any one of claims 1 to 7.
10. A computer-readable storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the respective steps in the data receiving method of the battery management unit according to any one of claims 1 to 7.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311692398.5A CN117692037A (en) | 2023-12-08 | 2023-12-08 | Data receiving method, device and equipment of battery management unit and storage medium |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311692398.5A CN117692037A (en) | 2023-12-08 | 2023-12-08 | Data receiving method, device and equipment of battery management unit and storage medium |
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| CN117692037A true CN117692037A (en) | 2024-03-12 |
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| CN202311692398.5A Pending CN117692037A (en) | 2023-12-08 | 2023-12-08 | Data receiving method, device and equipment of battery management unit and storage medium |
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| CN (1) | CN117692037A (en) |
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