CN110311178A - A kind of movable-type intelligent battery terminal based on multi-sensor fusion technology - Google Patents
A kind of movable-type intelligent battery terminal based on multi-sensor fusion technology Download PDFInfo
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- CN110311178A CN110311178A CN201910418043.4A CN201910418043A CN110311178A CN 110311178 A CN110311178 A CN 110311178A CN 201910418043 A CN201910418043 A CN 201910418043A CN 110311178 A CN110311178 A CN 110311178A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/23—Testing, monitoring, correcting or calibrating of receiver elements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/34—Power consumption
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/488—Cells or batteries combined with indicating means for external visualization of the condition, e.g. by change of colour or of light density
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- General Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The movable-type intelligent battery terminal based on multi-sensor fusion technology that the invention discloses a kind of, belong to intelligent battery field, the movable-type intelligent battery terminal based on multi-sensor fusion technology includes integrated charge module, state monitoring module, machine driving module, human-computer interaction module, locating module, central controller, the battery status monitoring technology of present invention research Multi-sensor Fusion, further quickly charging battery technology of the research based on status monitoring, it is final to develop integrated battery charging module, state monitoring module, machine driving module, human-computer interaction module, the movable-type intelligent battery terminal movable-type intelligent battery terminal of the modules such as locating module and central controller.
Description
Technical field
The invention belongs to intelligent battery field, more specifically to a kind of movable type based on multi-sensor fusion technology
Intelligent battery terminal.
Background technique
During movable-type intelligent battery terminal use, battery pack may face a series of problem.For example overcharge,
Over-discharge and short circuit etc.；Due to the complexity of battery behavior, production firm not can guarantee the property of every section single battery in battery pack
Can be consistent, and the difference of performance can add in the case where taking no action to the lengthening for using the time between this battery
It is acute；Power battery can all have a self discharge effect, i.e., internal in a quiescent state still to will do it slow chemical reaction, and this
Kind chemical reaction will necessarily even will cause the irreversible damage of battery along with the consumption of energy sometimes；Power battery
Remaining capacity be the necessary condition for judging electric vehicle continual mileage, it is necessary to can just be obtained by the status information of battery.It wants
Solve the above variety of problems, it is necessary to effectively be managed battery pack, and seek to can be to battery for the premise of battery management
State be monitored.
Movable-type intelligent battery terminal terminal scattered distribution, outdoor placement, the reason of causing its failure is complicated and randomness
By force, scattered distribution, which needs to carry out satellite positioning tracking guarantee equipment to equipment, to lose, however fixed in previous big-dipper satellite
In the system of position, positioning accuracy is not high, be easy to cause equipment position error range excessive.Previous power supply terminal does not have Third-party payment
Interface does not have device status monitoring function.So needing to develop a kind of novel intelligentized movable-type intelligent battery terminal.
Summary of the invention
The present invention uses Multi-sensor fusion technology, in conjunction with Beidou navigation satellite positioning and rapid nitriding, the confession
Electric terminals have status monitoring, safety monitoring, can guarantee the normal operation and safety of terminal；It is positioned and is calculated using the Beidou of update
Method can eliminate and set the problem that the positioning often occurred is not allowed in equipment positioning in the past.
To achieve the goals above, realization that the present invention adopts the following technical solutions: described to be melted based on multisensor
The movable-type intelligent battery terminal of conjunction technology includes the integrated charge module for battery charging management, for battery status and electricity
The state monitoring module for measuring monitoring, for the locating module of battery terminal positioning, for waterproof, the shell of vibration proof, for counting
According to the central controller of processing, the communication module of data interaction is carried out for central controller and back-end server, and be used for
The server that data are saved, inquired, the human-computer interaction module for human-computer interaction.
Preferably, the state monitoring module is passed using current sensor, voltage sensor, temperature sensor, vibration
Sensor, sensor interface circuitry；Current sensor, voltage sensor, temperature sensor, the output end of shock sensor and sensing
The input terminal of device interface circuit connects, and sensor interface circuitry output end is connect with central controller；
State monitoring module monitors the electric current, voltage, environment temperature, equipment shock conditions of power supply terminal respectively；When above-mentioned
More than after preset value, central controller transmits the information on server parameter.Central controller is by collected various sensings
Device data are handled, and various data are transferred on back-end server by communication module carry out in real time by data that treated
It saves；And compared with internal scheduled electric current, voltage, environment temperature preset value, it is taken if beyond preset value in rear end
It alarms simultaneously on business device and fault warning broadcast module, reminds so-and-so feeder ear of remote worker to go wrong and need to examine
It repairs.
Preferably, the communication module uses 4G/wifi/nfc wireless network communication technique, setting in back-end server
There is Third-party payment calling interface, carries out payment data clearing for Third-party payment side；It is shown on human-computer interaction module useful
In the payment two dimensional code of Third-party payment；Facilitate user when using intelligent power supply terminal, is paid using third party.Communication
The connection of the I/0 of module and central controller mouth.Scene movable-type intelligent function battery terminal can directly with rear end server
Carry out data interaction, the processing of field data and preservation.
Preferably, the locating module uses BEI-DOU position system, and back-end server can pass through the north of locating module
Bucket location data monitors the position of battery terminal in real time, after the offset of battery terminal position coordinates is too big, i.e., capable of emitting alarm,
It ensure that the safety of battery terminal.
Preferably, the integrated charge module uses fast charge technology, integrated charge module input and is connected with charging
Interface, charging interface are installed on shell, and integrated charge module output end is connect with battery, for charging to battery；Collection
It is connect at the control signal end of charging module with central processing unit, central processing unit is monitored charge information and electricity.
Preferably, the waterproof, against shock shell use waterproof material, and the blinds of waterproof instillation is offered on shell
Window；Internal battery and circuit board is installed on shockproof structure, and shockproof structure bottom is supported using spring structure.
Preferably, in the Beidou positioning module algorithm, in order to guarantee positioning accuracy using the three of suitable low sampling rate
Frequency cycle-slip detection and repair method；The above-mentioned algorithm steps are as follows:
Step 1. Detection of Cycle-slip；
Step 2. cycle slip fixing.
The invention has the advantages that:
The present invention uses Multi-sensor fusion technology, in conjunction with Beidou navigation satellite positioning and rapid nitriding, the confession
Electric terminals have status monitoring, safety monitoring, can guarantee the normal operation and safety of terminal；It is positioned and is calculated using the Beidou of update
Method can eliminate and set the problem that the positioning often occurred is not allowed in equipment positioning in the past.
Detailed description of the invention
Fig. 1 is the current sensor electrical schematic diagram of one embodiment of the invention；
Fig. 2 is the voltage sensor electrical schematic diagram of one embodiment of the invention；
Fig. 3 is the temperature sensor electrical schematic diagram of one embodiment of the invention；
Fig. 4 is the shock sensor schematic diagram of one embodiment of the invention；
Fig. 5 is the locating module BDM100 electrical schematic diagram of flow chart one embodiment of the present invention；
Fig. 6 is inventive algorithm flow chart.
Specific embodiment
Below in conjunction with the embodiment of the present invention and attached drawing, technical solution in the embodiment of the present invention carries out clear, complete
Ground description, it is clear that the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, all the category scope of the present invention.
The movable-type intelligent battery terminal based on multi-sensor fusion technology includes for battery charging management
Integrated charge module, for the state monitoring module of battery status and electric quantity monitoring, for the locating module of battery terminal positioning,
It is carried out for the central controller of data processing for central controller and back-end server for waterproof, the shell of vibration proof
The communication module of data interaction, and the human-computer interaction module for the server of data preservation, inquiry, for human-computer interaction.
Preferably, the state monitoring module is passed using current sensor, voltage sensor, temperature sensor, vibration
Sensor, sensor interface circuitry；Current sensor, voltage sensor, temperature sensor, the output end of shock sensor and sensing
The input terminal of device interface circuit connects, and sensor interface circuitry output end is connect with central controller；
State monitoring module monitors the electric current, voltage, environment temperature, equipment shock conditions of power supply terminal respectively；When above-mentioned
Parameter is more than after preset value, and central controller transmits the information on server, and central controller controls human-computer interaction module,
The display alarm information on human-computer interaction interface.
Preferably, the communication module uses 4G/wifi/nfc wireless network communication technique, setting in back-end server
There is Third-party payment calling interface, carries out payment data clearing for Third-party payment side；It is shown on human-computer interaction module useful
In the payment two dimensional code of Third-party payment；Facilitate user when using intelligent power supply terminal, is paid using third party.
Preferably, the locating module uses BEI-DOU position system, Beidou positioning module BDM100, BDM100 mould
Block is the high performance GNSS module of a dual system, can support BD2B1 simultaneously, GPSL1 two frequency bins, adapt to very well it is low at
This, low-power consumption field can carry out the integrated application of large-scale dipper system.Back-end server can pass through the north of locating module
Bucket location data monitors the position of battery terminal in real time, after the offset of battery terminal position coordinates is too big, i.e., capable of emitting alarm,
It ensure that the safety of battery terminal.
Preferably, the integrated charge module uses fast charge technology, integrated charge module input and is connected with charging
Interface, charging interface are installed on shell, and integrated charge module output end is connect with battery, for charging to battery；Collection
It is connect at the control signal end of charging module with central processing unit, central processing unit is monitored charge information and electricity.
Preferably, the waterproof, against shock shell use waterproof material, and the blinds of waterproof instillation is offered on shell
Window；Internal battery and circuit board is installed on shockproof structure, and shockproof structure bottom is supported using spring structure.
Preferably, in the Beidou positioning module algorithm, in order to guarantee positioning accuracy using the three of suitable low sampling rate
Frequency cycle-slip detection and repair method；The above-mentioned algorithm steps are as follows:
Step 1. Detection of Cycle-slip；
Firstly, establishing without geometry-without ionospheric combination, the detection of cycle slip epoch is carried out.According to three frequency combinatorial theorys, note group
Collaboration number is respectively α, and beta, gamma ignores second order term ionosphere delay, and three frequency combination carrier phase observation of Beidou can be denoted as:
Here ρ is the aggregate distance between star station, it further include the clock difference of receiver and satellite, tropospheric delay,
Hardware delay etc.；For building without geometry-without ionospheric combination, (1) is enabled to meet:
It can be calculated α=1, β=3.2577, γ=- 4.2577.By α, β, γ, formula 1 is brought into, and between adjacent epoch
It asks poor, when there is cycle slip generation, obtains no geometry-nothing
Ionospheric combination detection amount:
ΔΦIF=α λ1ΔN1+βλ2ΔN2+γλ3ΔN3+εΔφ (3)
Here εΔφA difference between the epoch of observation noise after combination.By formula (3) it is found that without geometry-without electricity
Absciss layer combined detection not by star stop spacing from, clock deviation, ionosphere delay influenced, only influenced by possible cycle slip and observation error.
It is assumed that the original observation noise of three frequency points of Beidou is independently distributed, meet Gaussian Profile, can be obtained by law of propagation of errors public
Error σ in formula (3)ΔφIt may be expressed as:
Under normal circumstances, when meeting following inequality (5), it is believed that cycle slip has occurred in current time:
|ΔΦIF|=| ΦIF(t)-ΦIF(t+1)|≥ησΔφ (5)
Step 2. cycle slip fixing:
By above-mentioned analysis, the specific size of cycle slip value is still unknown, uses at the epoch that known cycle slip occurs herein,
Two groups of methods without geometry phase combination combined without ionosphere pseudorange phase with one group comprising Ionospheric variability amount of simultaneous, determine
The specific value of cycle slip.
Three frequency phases, pseudo-range integration observed quantity are represented by
F in formulaI, j, kFor three frequency combination observation amount frequencies: fI, j, k=if1+if2+kf3, the wavelength of combination observation amount, phase
Position complete cycle number, ionosphere scale factor and noise coefficient are respectively as follows:
λI, j, k=c/fI, j, k (7)
NI, j, k=iN1+jN2+kN3 (8)
The combination of super-wide-lane phase pseudo range can indicate are as follows:
Formula (11) is asked poor between epoch, when there is cycle slip generation, combination cycle slip value can be indicated are as follows:
Since ionosphere delay item is eliminated during carrier phase and pseudo-range integration seek difference, Δ N0,-1,1It only exists
Observation noise.According to variance covariance propagation law, Δ N0,-1,1Standard deviation be 0.066 week, it is clear that less than 0.5 week, take:
Round () expression is rounded after rounding up in formula.By Δ N0,-1,1Being seen as mean value is 0, the Gauss of standard deviation 0.066
Distribution, then Detection of Cycle-slip is directly rounded success rate are as follows:
Similarly it is found that wide lane phase puppet combination (- 1,0,1) can indicate are as follows:
ΔN-1,0,1Standard deviation be 0.295, take:
Detection of Cycle-slip is directly rounded success rate are as follows:
The present invention uses Multi-sensor fusion technology, in conjunction with Beidou navigation satellite positioning and rapid nitriding, the confession
Electric terminals have status monitoring, safety monitoring, can guarantee the normal operation and safety of terminal；It is positioned and is calculated using the Beidou of update
Method can eliminate and set the problem that the positioning often occurred is not allowed in equipment positioning in the past.
Above in conjunction with attached drawing, the embodiment of the present invention is explained in detail, but the present invention is not limited to above-mentioned
Embodiment within the knowledge of a person skilled in the art can also be before not departing from present inventive concept
It puts and makes a variety of changes.
Claims (7)
1. a kind of movable-type intelligent battery terminal based on multi-sensor fusion technology, it is characterised in that: described to be passed based on more
The movable-type intelligent battery terminal of sensor integration technology includes the integrated charge module for battery charging management, is used for battery shape
The state monitoring module of state and electric quantity monitoring, for the locating module of battery terminal positioning, for waterproof, the shell of vibration proof,
For the central controller of data processing, the communication module of data interaction is carried out for central controller and back-end server, with
And it is saved for data, the server of inquiry, the human-computer interaction module for human-computer interaction.
2. a kind of movable-type intelligent battery terminal based on multi-sensor fusion technology according to claim 1, feature
Be: the state monitoring module uses current sensor, voltage sensor, temperature sensor, shock sensor, sensor
Interface circuit；Current sensor, voltage sensor, temperature sensor, shock sensor output end and sensor interface circuitry
Input terminal connection, sensor interface circuitry output end connect with central controller；
State monitoring module monitors the electric current, voltage, environment temperature, equipment shock conditions of power supply terminal respectively；Work as above-mentioned parameter
After preset value, central controller is transmitted the information on server, and central controller controls human-computer interaction module, in people
Display alarm information on machine interactive interface.
3. a kind of movable-type intelligent battery terminal based on multi-sensor fusion technology according to claim 1, feature
Be: the communication module uses 4G/wifi/nfc wireless network communication technique, is provided with third party's branch in back-end server
Calling interface is paid, carries out payment data clearing for Third-party payment side；It is shown on human-computer interaction module for third party's branch
The payment two dimensional code paid；Facilitate user when using intelligent power supply terminal, is paid using third party.
4. a kind of movable-type intelligent battery terminal based on multi-sensor fusion technology according to claim 1, feature
Be: the locating module uses BEI-DOU position system, and back-end server can pass through the Beidou location data of locating module
The position of monitoring battery terminal in real time, after the offset of battery terminal position coordinates is too big, i.e., capable of emitting alarm ensure that battery
The safety of terminal.
5. a kind of movable-type intelligent battery terminal based on multi-sensor fusion technology according to claim 1, feature
Be: the integrated charge module uses fast charge technology, integrated charge module input and is connected with charging interface, charging
Mouth is installed on shell, and integrated charge module output end is connect with battery, for charging to battery；Integrated charge module
Control signal end is connect with central processing unit, and central processing unit is monitored charge information and electricity.
6. a kind of movable-type intelligent battery terminal based on multi-sensor fusion technology according to claim 1, feature
Be: the waterproof, against shock shell offer the shutter of waterproof instillation using waterproof material on shell；Internal electricity
Pond and circuit board are installed on shockproof structure, and shockproof structure bottom is supported using spring structure.
7. a kind of movable-type intelligent battery terminal based on multi-sensor fusion technology according to claim 4, feature
It is: in the Beidou positioning module algorithm, in order to guarantee positioning accuracy using the three frequency Detection of Cycle-slip for being suitble to low sampling rate
With restorative procedure；The above-mentioned algorithm steps are as follows:
Step 1. Detection of Cycle-slip；
Step 2. cycle slip fixing.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112909356A (en) * | 2021-01-19 | 2021-06-04 | 慧橙新能源发展(杭州)有限公司 | General data acquisition board card based on battery cluster |
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|---|---|---|---|---|
| CN105467412A (en) * | 2015-12-04 | 2016-04-06 | 昆明理工大学 | Beidou three-frequency cycle-slip detection and restoration method |
| CN206960624U (en) * | 2017-05-02 | 2018-02-02 | 国网山东省电力公司莱芜供电公司 | Battery monitor apparatus and system |
| CN207097125U (en) * | 2017-06-29 | 2018-03-13 | 国网江西省电力公司南昌供电分公司 | The intelligent electricity selling charging terminal and system of multiple users share electricity consumption |
-
2019
- 2019-05-20 CN CN201910418043.4A patent/CN110311178A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105467412A (en) * | 2015-12-04 | 2016-04-06 | 昆明理工大学 | Beidou three-frequency cycle-slip detection and restoration method |
| CN206960624U (en) * | 2017-05-02 | 2018-02-02 | 国网山东省电力公司莱芜供电公司 | Battery monitor apparatus and system |
| CN207097125U (en) * | 2017-06-29 | 2018-03-13 | 国网江西省电力公司南昌供电分公司 | The intelligent electricity selling charging terminal and system of multiple users share electricity consumption |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112909356A (en) * | 2021-01-19 | 2021-06-04 | 慧橙新能源发展(杭州)有限公司 | General data acquisition board card based on battery cluster |
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