CN110299899A - Signal pickup assembly, method, charging equipment, onboard control device and electric car - Google Patents
Signal pickup assembly, method, charging equipment, onboard control device and electric car Download PDFInfo
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- CN110299899A CN110299899A CN201910648330.4A CN201910648330A CN110299899A CN 110299899 A CN110299899 A CN 110299899A CN 201910648330 A CN201910648330 A CN 201910648330A CN 110299899 A CN110299899 A CN 110299899A
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- 239000003990 capacitor Substances 0.000 claims description 16
- 238000004590 computer program Methods 0.000 claims description 15
- 239000013256 coordination polymer Substances 0.000 claims description 15
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- AWSBQWZZLBPUQH-UHFFFAOYSA-N mdat Chemical compound C1=C2CC(N)CCC2=CC2=C1OCO2 AWSBQWZZLBPUQH-UHFFFAOYSA-N 0.000 claims description 2
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H11/00—Networks using active elements
- H03H11/46—One-port networks
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/66—Digital/analogue converters
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- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Theoretical Computer Science (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Abstract
The present invention provides a kind of signal pickup assembly, comprising: filter circuit is filtered for receiving signal to be collected, and to the signal to be collected to generate filtering signal；Amplifying circuit generates acquisition signal for receiving the filtering signal, and according to the filtering signal；And analog to digital conversion circuit carries out analog-to-digital conversion to the acquisition signal, and export the digital acquisition signal of conversion for receiving the acquisition signal.Above-mentioned signal pickup assembly structure is simple, and acquisition precision is high.In addition, the present invention also provides charging equipment, onboard control device and electric car with above-mentioned signal pickup assembly, signal acquisition method, computer equipment and computer storage medium.
Description
Technical field
The present invention relates to signal acquisition fields, specifically, relating generally to a kind of accurate high signal pickup assembly, have
Charging equipment, onboard control device and the electric car of the signal pickup assembly, signal acquisition method, computer equipment and calculating
Machine storage medium.
Background technique
With the continuous improvement of scientific and technological level, electronic equipment is more and more into living, and in the application of electronic equipment, is related to
The reception and transmission of a large amount of electric signals, the mutual transmission telecommunications number of element in electronic equipment is to realize the transmitting of data, Jin Ershi
The control action of existing electronic equipment.The transmitting of electric signal realizes that function plays an important role to electronic equipment, therefore, to telecommunications
Number acquisition become the project being increasingly concerned.
In current electronic equipment, the Normal practice to the acquisition of variable signal is to be adopted by multi pass acquisition unit
Collection causes Acquisition Circuit complicated in this way, and power consumption increases, and collecting efficiency is low.
Summary of the invention
It is an object of the invention to overcome the deficiencies of existing technologies, the signal that a kind of structure is simple, accuracy is high is provided and is adopted
Acquisition means, with the signal pickup assembly charging equipment, onboard control device and electric car and signal pickup assembly,
Computer equipment and computer storage medium.
To achieve the goals above, the present invention adopts the following technical scheme that:
In a first aspect, a kind of signal pickup assembly, comprising:
Filter circuit for receiving signal to be collected, and is filtered the signal to be collected to generate filtering
Signal；
Amplifying circuit generates acquisition signal for receiving the filtering signal, and according to the filtering signal；And
Analog to digital conversion circuit carries out analog-to-digital conversion to the acquisition signal, and export and turn for receiving the acquisition signal
The digital acquisition signal changed.
Second aspect, a kind of charging equipment, including the signal pickup assembly according to first aspect, the signal acquisition
The conversion output Vout3 of device is used to export the digital acquisition signal to electric car.
The third aspect, a kind of onboard control device, including the signal pickup assembly according to first aspect, the signal
The filter input Vin1 of acquisition device is used to receive the signal to be collected of charging equipment.
Fourth aspect, a kind of electric car, including the signal pickup assembly according to first aspect, the signal acquisition
The filter input Vin1 of device is used to receive the signal to be collected of charging equipment.
5th aspect, a kind of signal acquisition method, comprising:
Signal to be collected is received, and the signal to be collected is filtered to produce filtering signal；
Acquisition signal is generated according to the filtering signal；And
Analog-to-digital conversion is carried out to the acquisition signal, and exports the digital acquisition signal of conversion.
6th aspect, a kind of computer equipment, comprising:
Memory, for storing computer program；And
Processor completes signal acquisition method described in the 5th aspect for executing the computer program.
7th aspect, a kind of computer storage medium, for storing computer program, the computer program is performed
Realize signal acquisition method described in the 5th aspect.
Beneficial effects of the present invention:
The signal pickup assembly and signal acquisition method of offer of the invention pass sequentially through filter circuit filtering processing, put
Big circuit computing processing and analog to digital conversion circuit analog-to-digital conversion, so that be converted to can be identified for the signal to be collected of input
Digital acquisition signal, structure is simple, and acquisition precision is high.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of the scope of the invention.
Fig. 1 is a preferred embodiment of the present invention the structural frames schematic diagram of signal pickup assembly；
Fig. 2 is the electrical block diagram of signal pickup assembly in Fig. 1；
Fig. 3 is the flow diagram of the signal acquisition method of another embodiment of the present invention；
Fig. 4 is the flow diagram that step is filtered in Fig. 3.
Specific embodiment
Hereinafter, various embodiments of the present invention will be described more fully.The present invention can have various embodiments, and
It can adjust and change wherein.It should be understood, however, that: there is no various embodiments of the present invention are limited to spy disclosed herein
Determine the intention of embodiment, but should invention is construed as cover in the spirit and scope for falling into various embodiments of the present invention
All adjustment, equivalent and/or optinal plan.
Hereinafter, disclosed in the term " includes " that can be used in various embodiments of the present invention or " may include " instruction
Function, operation or the presence of element, and do not limit the increase of one or more functions, operation or element.In addition, such as existing
Used in various embodiments of the present invention, term " includes ", " having " and its cognate are meant only to indicate special characteristic, number
Word, step, operation, the combination of element, component or aforementioned item, and be understood not to exclude first one or more other
Feature, number, step, operation, element, component or aforementioned item combined presence or increase one or more features, number,
Step, operation, element, component or aforementioned item combination a possibility that.
In various embodiments of the present invention, statement " A or/and B " includes any combination or the institute of the text listed file names with
There is combination, such as, it may include A, it may include B or may include A and B both.
The statement (" first ", " second " etc.) used in various embodiments of the present invention can be modified in various implementations
Various constituent element in example, but respective sets can not be limited into element.For example, the above statement is not intended to limit the suitable of the element
Sequence and/or importance.The above statement is only used for the purpose for differentiating an element and other elements.For example, the first user fills
It sets and indicates different user device with second user device, although the two is all user apparatus.For example, of the invention each not departing from
In the case where the range of kind embodiment, first element is referred to alternatively as second element, and similarly, second element is also referred to as first
Element.
It should also be noted that in the present invention, unless otherwise specific regulation and definition, the arts such as " installation ", " connection ", " fixation "
Language shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection or being integrally connected；It can be machine
Tool connection, is also possible to be electrically connected；It can be and be directly connected to, and can be indirectly connected through an intermediary；It can be two
Connection inside element.For the ordinary skill in the art, above-mentioned term can be understood at this as the case may be
Concrete meaning in invention.
In the present invention, those skilled in the art are it is to be appreciated that indicating position or positional relationship in text
Term be orientation based on the figure or positional relationship, be merely for convenience of description of the present invention and simplification of the description, without
It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore
It is not considered as limiting the invention.
The term used in various embodiments of the present invention is used only for the purpose of describing specific embodiments and not anticipates
In limitation various embodiments of the present invention.Unless otherwise defined, otherwise all terms used herein (including technical term and
Scientific term) there is contain identical with the normally understood meaning of various embodiments of the present invention one skilled in the art
Justice.The term (term such as limited in the dictionary generally used) be to be interpreted as have in the related technical field
The identical meaning of situational meaning and Utopian meaning or meaning too formal will be interpreted as having, unless this
It is clearly defined in the various embodiments of invention.
The embodiment of the present invention provides a kind of signal pickup assembly 100, and the signal pickup assembly 100 is applied to charging process
In acquisition to control guidance CP signal, for charging equipment into the charging process of electric car, charging equipment is different by sending
CP signal realize different control guidance, for example, the CP signal of sending+12V level, indicates that the not connected charging of electric car is set
It is standby；The CP signal of sending+9V level indicates that the charge cable of charging equipment is connect with electric car；The CP of sending+6V level believes
Number, indicate that the charge cable of charging equipment has turned on electric car and charges ready, etc..
After the signal pickup assembly 100 acquires the signal to be collected of charging equipment output, processing generates digital collection letter
Electric car is transferred to after number, it will be understood that the output end in charging equipment can be set in the signal pickup assembly 100, right
To electric car, the input terminal or electric car for being either set to electric car are got on the bus for output after the signal processing of charging equipment
The input terminal for carrying control equipment, receives the signal to be collected of charging equipment, and handled.
It is appreciated that in other embodiments, the signal pickup assembly 100 can also be used in other equipment, such as
In testing field, the level signal of electronic equipment, further progress test are acquired.
Referring to FIG. 1, showing the structural block diagram of the signal pickup assembly 100 of a preferred embodiment of the present invention.
The signal pickup assembly 100, comprising:
Filter circuit 10 for receiving signal to be collected, and is filtered the signal to be collected to generate filter
Wave signal；
Amplifying circuit 20 generates acquisition signal for receiving the filtering signal, and according to the filtering signal；And
Analog to digital conversion circuit 30 carries out analog-to-digital conversion to the acquisition signal, and export for receiving the acquisition signal
The digital acquisition signal of conversion.
In the present embodiment, the signal pickup assembly 100 passes sequentially through the filtering processing of filter circuit 10, amplifying circuit 20
30 analog-to-digital conversion of calculation process and analog to digital conversion circuit, so that the signal to be collected of input is converted to digital acquisition signal and defeated
Out, digital acquisition signal is compared to signal to be collected, and signal stabilization precision is high, and can be recognized directly, to be controlled.
Referring to FIG. 2, the filter circuit 10 includes signal filter input Vin1, filtering output end Vout1, the first electricity
Resistance R1, second resistance R2,3rd resistor R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, first switch Q1, second open
Q2, first capacitor C1, the second capacitor C2, the filter input Vin1 are closed for receiving the signal to be collected, the filtering
For output end vo ut1 for exporting the filtering signal, the filter input Vin1 passes sequentially through the 3rd resistor R3 and institute
First resistor R1 ground connection is stated, the filter input Vin1 passes sequentially through the 3rd resistor R3 and the first capacitor C1 connects
Ground, by the 3rd resistor R3 connection filter input Vin1, described first opens the control terminal of the first switch Q1
The second end ground connection of Q1 is closed, the first end of the first switch Q1 is by passing sequentially through the second resistance R2 and the 5th electricity
The R5 connection filter input Vin1 is hindered, the first end of the first switch Q1 is also connected with the control of the second switch Q2
End, by the 5th resistance R5 connection filter input Vin1, described second opens the first end of the second switch Q2
The second end for closing Q2 passes through the 4th resistance R4 connection filtering output end Vout1, the second end of the second switch Q2
Pass sequentially through the 4th resistance R4 and the second capacitor C2 ground connection, the filtering output end Vout1 connection amplifying circuit.
In the present embodiment, the first switch Q1 is triode, and the second switch Q2 is MOSFET (metal-oxide-
Semiconductor field-effect transistor, metal-oxide half field effect transistor).Specifically, the first switch Q1
For NPN- triode, the second switch Q2 is N-MOSFET.It is appreciated that in other embodiments, the first switch Q1
It can also be metal-oxide-semiconductor, specifically can be set to P-MOSFET；The second switch Q2 can also be triode, can specifically set
It is set to PNP- triode.
When circuit works, the filter input Vin1 receives CP signal, when CP signal is negative level, described first
The control terminal of switch Q1 is negative level, and the first end and second end of the first switch Q1 is not turned on, the second switch Q2's
First end is also not turned on second end, therefore filtering output end Vout1 cannot export filtering signal.When CP signal is positive level
When, the control terminal of the first switch Q1 is positive level, and the control terminal of the first switch Q1 and the voltage difference of second end reach
Preset value is specially greater than 0.7V, and the first end of the first switch Q1 and second end are switched on, at this point, the 5th resistance R5 and
The control terminal of second switch Q2 is grounded, and the control terminal of second switch Q2 and the voltage difference of first end reach preset value, specially greatly
In 0.3V so that the first end of the second switch Q2 is connected with second end, at this point, CP signal pass sequentially through the 5th resistance R5,
Second switch Q2, the 4th resistance R4 are transmitted to filtering output end Vout1.By the above process, filter circuit 10 is by CP signal
Negative level filters out, and generates the CP filtering signal for retaining positive level.
Wherein, filter input Vin1 is grounded by the 3rd resistor R3 and first capacitor C1, defeated for filtering out filtering
Enter the high-frequency noise for holding signal between Vin1 and ground terminal, so that the level equalization of the first switch Q1 control terminal, and realize
Accurate switch control.
The second end of the second switch Q2 is grounded by the 4th resistance R4 and the second capacitor C2, is output to filter for filtering out
The high-frequency noise of wave output terminal Vout1.
For limiting the electric current for being input to second switch Q2 control terminal, the 6th resistance R6 is used for the 5th resistance R5
Limitation is input to the electric current of first switch Q1 first end.
It is appreciated that in another embodiment, the 3rd resistor R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance
R6, first capacitor C1 and the second capacitor C2 can be omitted.That is, the filter input Vin1 passes through in the filter circuit 10
The first resistor R1 ground connection, the control terminal of the first switch Q1 connect the filter input Vin1, the first switch
The second end of Q1 is grounded, and the first end of the first switch Q1 passes through the second resistance R2 connection filter input
Vin1, the first end of the first switch Q1 are also connected with the control terminal of the second switch Q2, and the first of the second switch Q2
End connects the filter input Vin1, and the second end of the second switch Q2 connects the filtering output end Vout1, the filter
The wave output terminal Vout1 connection amplifying circuit.
Further, it is based on previous embodiment, the filter circuit further includes 3rd resistor R3 and first capacitor C1, described
Filter input Vin1 passes sequentially through the 3rd resistor R3 and first resistor R1 ground connection, and the filter input
Vin1 passes sequentially through the 3rd resistor R3 and first capacitor C1 ground connection.
Further, it is based on previous embodiment, the filter circuit further includes the 4th resistance R4 and the second capacitor C2, described
The second end of second switch Q2 passes through the 4th resistance R4 connection filtering output end Vout1, and the second switch
The second end of Q2 passes sequentially through the 4th resistance R4 and the second capacitor C2 ground connection.
Further, it is based on previous embodiment, the filter circuit further includes the 5th resistance R5, the filter input
Vin1 connects the first end of the second switch Q2 by the 5th resistance R5 and the filter input Vin1 successively leads to
Cross the control terminal that the 5th resistance R5 and second resistance R2 connects the second switch Q2.
Further, it is based on previous embodiment, the filter circuit further includes the 6th resistance R6, the first switch Q1's
Control terminal passes sequentially through the 6th resistance R6 and affiliated first resistor R1 ground connection.
Further, it is based on previous embodiment, the first end and second end of the second switch Q2 respectively includes at least two
A pin.In the present embodiment, the first end and second end of the second switch Q2 is set as at least two pins, is capable of increasing and leads
Logical current limit improves signal and passes through efficiency.Specifically, the first end of the second switch Q2 is set as two pins, the
Two ends are set as five pins.
Further, it is based on previous embodiment, the first switch Q1 is triode or MOSFET, the second switch Q2
For triode or MOSFET, the control terminal of the first switch Q1 or second switch Q2 are the base stage or MOSFET of triode
The first end of grid, the first switch Q1 or second switch Q2 are the emitter of triode or the source electrode of MOSFET, described the
The third end of one switch Q1 or second switch Q2 is the drain electrode of the collector or MOSFET of triode.
The amplifying circuit 20 is operational amplification circuit, amplifies operation for the amplitude to input signal, makes to input
Signal is changed with certain proportion, and according to different actual demands, amplitude can become larger, reduce, and reverse phase becomes larger or reduces.
Further, the amplifying circuit 20 generates the acquisition signal to the processing that amplifies of the filtering signal,
The magnification ratio of enhanced processing is less than 1.In the present embodiment, the amplifying circuit 20 passes through the amplitude for reducing the filtering signal,
Generate the lesser acquisition signal of amplitude.
Further, the amplifying circuit includes amplification input terminal Vin2, amplification output end vo ut2, amplifier U1, the 7th
Resistance R7 and the 8th resistance R8, the amplification input terminal Vin2 are for receiving the filtering signal, the amplification output end vo ut2
For exporting the acquisition signal, the amplification input terminal Vin2 passes sequentially through the 7th resistance R7 and the 8th resistance R8
Ground connection, the amplification input terminal Vin2 also pass through the non-inverting input pin INP that the 7th resistance R7 connects the amplifier U1,
The anti-phase input pin INN of the amplifier U1 connects the output pin OUT of the amplifier U1, the output pin OUT company
Connect the amplification output end vo ut2, the amplification output end vo ut2 connection analog to digital conversion circuit.
In the present embodiment, the output signal V-OUT of the amplifier U1 is equal to rp input signal V-INN and is equal to positive
Input signal V-INP, positive phase input signal V-INP are by the 7th resistance R7 and the 8th resistance R8 to the input electricity of amplifying circuit 20
Pressure V-Vin2 is divided, to sum up,It is appreciated that according to reality
It needs, the resistance value of the 8th resistance R8 and the 9th resistance R9 can be adjusted, so that amplifying circuit 20 carries out difference to signal
The diminution of degree.
Further, the amplifying circuit 20 further includes the 9th resistance R9, and the anti-phase input pin INN passes through the 9th electricity
Resistance R9 is connect with the output pin OUT, for limiting the electric current of route.The amplifying circuit further includes the tenth resistance R10, institute
It states output pin OUT and output end vo ut2 is amplified by the tenth resistance R10 connection, for limiting the electric current of route.
Further, positive voltage pin V+ the first power vd of connection D of the amplifier U1, the negative electricity of the amplifier U1
Pressure pipe foot V- ground connection.
Further, analog-digital conversion circuit as described 30 turns including conversion inputs Vin3, conversion output Vout3 and modulus
Chip U2 is changed, the conversion inputs Vin3 is for receiving the acquisition signal, and the conversion output Vout3 is for exporting institute
Digital acquisition signal is stated, the conversion inputs Vin3 connects the positive voltage input pin VIN+ of the modulus conversion chip U2,
The negative voltage input pin VIN- of the modulus conversion chip U2 is grounded, the numeral output pin of the modulus conversion chip U2
The MDAT connection conversion output Vout3.
In the present embodiment, the positive voltage input pin VIN+ and negative voltage input pin VIN- of the modulus conversion chip U2
Signal input simulation CP signal pulse signal, chip U2 digital acquisition signal and exports to generating after signal analog-to-digital conversion.
Further, first supply voltage pin VDD1 connection the first power vd D_ of the modulus conversion chip U2
The second source voltage pin VDD2 connection system power supply VDD_SYS of 1, the modulus conversion chip U2.
Above-mentioned signal pickup assembly 100 is for the acquisition to CP signal between charging equipment and electric car, it will be understood that
Signal pickup assembly 100 can be set in charging equipment, be acquired for the CP signal output to charging equipment, wherein institute
The conversion output Vout3 for stating signal pickup assembly is used to export the digital acquisition signal to electric car.
It is appreciated that above-mentioned signal pickup assembly 100 can also be set to the onboard control device of electric car, the letter
The filter input Vin1 of number acquisition device is used to receive the signal to be collected of charging equipment.
It is appreciated that above-mentioned signal pickup assembly 100 can also be set to electric car, the filter of the signal pickup assembly
Wave input terminal Vin1 is used to receive the signal to be collected of charging equipment.
The signal pickup assembly of offer of the invention passes sequentially through filter circuit filtering processing, amplifying circuit calculation process
And analog to digital conversion circuit analog-to-digital conversion so that input signal to be collected be converted to can identified digital acquisition signal,
Structure is simple, and acquisition precision is high.
In all examples being illustrated and described herein, any occurrence should be construed as merely illustratively, without
It is as limitation, therefore, other examples of exemplary embodiment can have different values.
Referring to FIG. 3, the embodiment of the present invention also provides a kind of signal acquisition method, comprising steps of a kind of signal acquisition side
Method, comprising:
Step S10 receives signal to be collected, and is filtered the signal to be collected to produce filtering signal；
Step S20 generates acquisition signal according to the filtering signal；And
Step S30 carries out analog-to-digital conversion to the acquisition signal, and exports the digital acquisition signal of conversion.
In the present embodiment, filtering, operation amplifier and analog-to-digital conversion process are passed sequentially through, signal to be collected is converted to can
Identified digital acquisition signal improves the accuracy and efficiency of acquisition.
Further, the step S10, receives signal to be collected, and to the signal to be collected be filtered with
Produce filtering signal, comprising:
Step S11 receives signal to be collected；
Step S12 detects the positive level and negative level of the signal to be collected；And
Step S13 filters out the negative level of the signal to be collected, exports the positive level filtering signal after filtering out.
Further, the step S12 detects the positive level and negative level of the signal to be collected, comprising: filter out wait adopt
Collect the high-frequency noise of signal, detection filters out the positive level and negative level of the signal to be collected after high-frequency noise.
Further, the step S13, filters out the negative level of the signal to be collected, and the positive level after output filters out is filtered
Wave signal, comprising: the negative level signal for filtering out the signal to be collected carries out high-frequency noise filter to the positive level signal after filtering out
Wave processing, exports positive level filtering signal.
Further, the step S20 generates acquisition signal according to the filtering signal, comprising: receives the filtering letter
Number, the filtering signal is amplified according to preset ratio, exports amplified acquisition signal.
Further, the preset ratio is less than 1.The enhanced processing is really to reduce the amplitude of the filtering signal.
The embodiment of the present invention also provides a kind of computer equipment, comprising: memory, for storing computer program；With
And processor, above-mentioned signal acquisition method is completed for executing the computer program.
The embodiment of the present invention also provides a kind of computer storage medium, for storing computer program, the computer
Program is performed real above-mentioned signal acquisition method.
It should be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above embodiment method, being can
It is completed with instructing relevant hardware by computer program, the computer program can be stored in a non-volatile calculating
In machine read/write memory medium, the computer program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Its
In, any of memory, storage, database or other media is drawn used in each embodiment provided herein
With may each comprise non-volatile and/or volatile memory.Nonvolatile memory may include read-only memory (ROM), can compile
Journey ROM (PROM), electrically programmable ROM (EPROM), electrically erasable ROM (EEPROM) or flash memory.Volatile memory can
Including random access memory (RAM) or external cache.By way of illustration and not limitation, RAM is in a variety of forms
Can obtain, such as static state RAM (SRAM), dynamic ram (DRAM), synchronous dram (SDRAM), double data rate sdram (DDRSDRAM),
Enhanced SDRAM (ESDRAM), synchronization link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM
(RDRAM), direct memory bus dynamic ram (DRDRAM) and memory bus dynamic ram (RDRAM) etc..
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitation of the scope of the invention therefore cannot be interpreted as.It should be pointed out that it will be apparent to those skilled in the art that can basis
Technical solution described above and design, make various other corresponding changes and deformation, and all these change with
And deformation all should belong within the scope of protection of the claims of the present invention.
Claims (26)
1. a kind of signal pickup assembly characterized by comprising
Filter circuit is filtered for receiving signal to be collected, and to the signal to be collected to generate filtering signal；
Amplifying circuit generates acquisition signal for receiving the filtering signal, and according to the filtering signal；And
Analog to digital conversion circuit carries out analog-to-digital conversion to the acquisition signal, and export conversion for receiving the acquisition signal
Digital acquisition signal.
2. signal pickup assembly according to claim 1, which is characterized in that the filter circuit includes signal filtering input
Hold Vin1, filtering output end Vout1, first resistor R1, second resistance R2, first switch Q1 and second switch Q2, the filtering
For input terminal Vin1 for receiving the signal to be collected, the filtering output end Vout1 is described for exporting the filtering signal
Filter input Vin1 is grounded by the first resistor R1, and the control terminal of the first switch Q1 connects the filter input
The second end of Vin1, the first switch Q1 are grounded, and the first end of the first switch Q1 passes through the second resistance R2 connection
The filter input Vin1, the first end of the first switch Q1 are also connected with the control terminal of the second switch Q2, and described
The first end of two switch Q2 connects the filter input Vin1, and the second end of the second switch Q2 connects the filtering output
Hold Vout1, the filtering output end Vout1 connection amplifying circuit.
3. signal pickup assembly according to claim 2, which is characterized in that the filter circuit further includes 3rd resistor R3
And first capacitor C1, the filter input Vin1 pass sequentially through the 3rd resistor R3 and first resistor R1 ground connection, and
And the filter input Vin1 passes sequentially through the 3rd resistor R3 and first capacitor C1 ground connection.
4. signal pickup assembly according to claim 2, which is characterized in that the filter circuit further includes the 4th resistance R4
And second capacitor C2, the second switch Q2 second end by the 4th resistance R4 connection filtering output end Vout1,
And the second end of the second switch Q2 passes sequentially through the 4th resistance R4 and the second capacitor C2 ground connection.
5. signal pickup assembly according to claim 2, which is characterized in that the filter circuit further includes the 5th resistance
R5, the filter input Vin1 connect the first end and the filter of the second switch Q2 by the 5th resistance R5
Wave input terminal Vin1 passes sequentially through the control terminal that the 5th resistance R5 and second resistance R2 connects the second switch Q2.
6. signal pickup assembly according to claim 2, which is characterized in that the filter circuit further includes the 6th resistance
R6, the control terminal of the first switch Q1 pass sequentially through the 6th resistance R6 and affiliated first resistor R1 ground connection.
7. signal pickup assembly according to claim 2, which is characterized in that the first end and second of the second switch Q2
End respectively includes at least two pins.
8. signal pickup assembly according to claim 2, which is characterized in that the first switch Q1 is triode or golden oxygen
Half field effect transistor MOSFET, the second switch Q2 are triode or MOSFET, the first switch Q1 or second switch Q2
Control terminal be the base stage of triode or the grid of metal-oxide-semiconductor, the first end of the first switch Q1 or second switch Q2 are three
The third end of the emitter of pole pipe or the source electrode of metal-oxide-semiconductor, the first switch Q1 or second switch Q2 are the collector of triode
Or the drain electrode of metal-oxide-semiconductor.
9. signal pickup assembly according to claim 1, which is characterized in that the signal to be collected is control guidance CP letter
Number.
10. signal pickup assembly according to claim 1, which is characterized in that the amplifying circuit is used for the filtering
The processing that amplifies of signal generates the acquisition signal, and the magnification ratio of enhanced processing is less than 1.
11. according to claim 1 or signal pickup assembly described in 10, which is characterized in that the amplifying circuit include amplify it is defeated
Enter to hold Vin2, amplification output end vo ut2, amplifier U1, the 7th resistance R7 and the 8th resistance R8, the amplification input terminal Vin2 to use
In receiving the filtering signal, the amplification output end vo ut2 is for exporting the acquisition signal, the amplification input terminal Vin2
The 7th resistance R7 and the 8th resistance R8 ground connection is passed sequentially through, the amplification input terminal Vin2 also passes through the 7th electricity
Resistance R7 connects the non-inverting input pin INP of the amplifier U1, the anti-phase input pin INN connection amplification of the amplifier
The output pin OUT, the output pin OUT connection amplification output end vo ut2, the amplification output end vo ut2 of device U1
Connect analog to digital conversion circuit.
12. signal pickup assembly according to claim 11, which is characterized in that the amplifying circuit further includes the 9th resistance
R9, the anti-phase input pin INN are connect by the 9th resistance R9 with the output pin OUT；And/or the amplifying circuit
It further include the tenth resistance R10, the output pin OUT also passes through the tenth resistance R10 connection amplification output end vo ut2.
13. signal pickup assembly according to claim 11, which is characterized in that the positive voltage pin V+ of the amplifier U1
Connect the negative voltage pin V- ground connection of the first power vd D, the amplifier U1.
14. signal pickup assembly according to claim 1, which is characterized in that analog-digital conversion circuit as described includes that conversion is defeated
Enter to hold Vin3, conversion output Vout3 and modulus conversion chip U2, the conversion inputs Vin3 for receiving the acquisition letter
Number, the conversion output Vout3 is for exporting the digital acquisition signal, the conversion inputs Vin3 connection modulus
The negative voltage input pin VIN- of positive voltage the input pin VIN+, the modulus conversion chip U2 of conversion chip U2 are grounded, institute
State the numeral output pin MDAT connection conversion output Vout3 of modulus conversion chip U2.
15. signal pickup assembly according to claim 14, which is characterized in that the first electricity of the modulus conversion chip U2
The second source voltage pin VDD2 of source voltage pin VDD1 connection the first power vd D_1, the modulus conversion chip U2
Connect system power supply VDD_SYS.
16. a kind of charging equipment, which is characterized in that including according to claim 1-15 described in any item signal pickup assemblies,
The conversion output Vout3 of the signal pickup assembly is used to export the digital acquisition signal to electric car.
17. a kind of onboard control device, which is characterized in that including according to claim 1-15 described in any item signal acquisition dresses
It sets, the filter input Vin1 of the signal pickup assembly is used to receive the signal to be collected of charging equipment.
18. a kind of electric car, which is characterized in that including according to claim 1-15 described in any item signal pickup assemblies,
The filter input Vin1 of the signal pickup assembly is used to receive the signal to be collected of charging equipment.
19. a kind of signal acquisition method characterized by comprising
Signal to be collected is received, and the signal to be collected is filtered to produce filtering signal；
Acquisition signal is generated according to the filtering signal；And
Analog-to-digital conversion is carried out to the acquisition signal, and exports the digital acquisition signal of conversion.
20. signal acquisition method according to claim 19, which is characterized in that it is described to receive signal to be collected, and to institute
Signal to be collected is stated to be filtered to produce filtering signal, comprising:
Receive signal to be collected；
Detect the positive level and negative level of the signal to be collected；And
The negative level of the signal to be collected is filtered out, the positive level filtering signal after filtering out is exported.
21. signal acquisition method according to claim 20, which is characterized in that the detection signal to be collected is just
Level and negative level, comprising: filter out the high-frequency noise of signal to be collected, detecting the signal to be collected after filtering out high-frequency noise just
Level and negative level.
22. signal acquisition method according to claim 20, which is characterized in that described to filter out the negative of the signal to be collected
Level exports the positive level filtering signal after filtering out, comprising:
The negative level signal for filtering out the signal to be collected carries out high-frequency noise filtering processing to the positive level signal after filtering out,
Export positive level filtering signal.
23. signal acquisition method according to claim 19, which is characterized in that described to be adopted according to filtering signal generation
Collect signal, comprising:
The filtering signal is received, the filtering signal is amplified according to preset ratio, exports amplified acquisition signal.
24. signal acquisition method according to claim 23, which is characterized in that the preset ratio is less than 1.
25. a kind of computer equipment characterized by comprising
Memory, for storing computer program；And
Processor completes signal acquisition described in any one of claim 19 to 24 for executing the computer program
Method.
26. a kind of computer storage medium, which is characterized in that for storing computer program, the computer program is performed
Signal acquisition method described in any one of Shi Shixian claim 19 to 24.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910648330.4A CN110299899A (en) | 2019-07-18 | 2019-07-18 | Signal pickup assembly, method, charging equipment, onboard control device and electric car |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910648330.4A CN110299899A (en) | 2019-07-18 | 2019-07-18 | Signal pickup assembly, method, charging equipment, onboard control device and electric car |
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| CN201910648330.4A Pending CN110299899A (en) | 2019-07-18 | 2019-07-18 | Signal pickup assembly, method, charging equipment, onboard control device and electric car |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113879164A (en) * | 2021-10-21 | 2022-01-04 | 江苏华鹏智能仪表科技股份有限公司 | Method for collecting signals of control guide circuit of alternating current charging equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104967171A (en) * | 2015-07-02 | 2015-10-07 | 诸暨市沃思环保技术有限公司 | Charging station |
| CN105115645A (en) * | 2015-09-06 | 2015-12-02 | 成都诚邦动力测试仪器有限公司 | Logic protection amplification circuit-based signal filtering type efficient eddy current power-measuring system |
| CN205003500U (en) * | 2015-09-02 | 2016-01-27 | 皖西学院 | Small signal high accuracy collection system |
| CN105321547A (en) * | 2015-11-27 | 2016-02-10 | 成都思博特科技有限公司 | Novel recording system based on analog/digital conversion circuit |
| CN208091481U (en) * | 2018-04-20 | 2018-11-13 | 国家电投集团江苏海上风力发电有限公司 | A kind of data acquisition device |
| CN109952706A (en) * | 2016-09-14 | 2019-06-28 | 华为技术有限公司 | Filter circuit with programmable-gain and frequency response |
| CN211579941U (en) * | 2019-07-18 | 2020-09-25 | 恒大智慧充电科技有限公司 | Signal acquisition device, charging equipment, vehicle-mounted control equipment and electric automobile |
-
2019
- 2019-07-18 CN CN201910648330.4A patent/CN110299899A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104967171A (en) * | 2015-07-02 | 2015-10-07 | 诸暨市沃思环保技术有限公司 | Charging station |
| CN205003500U (en) * | 2015-09-02 | 2016-01-27 | 皖西学院 | Small signal high accuracy collection system |
| CN105115645A (en) * | 2015-09-06 | 2015-12-02 | 成都诚邦动力测试仪器有限公司 | Logic protection amplification circuit-based signal filtering type efficient eddy current power-measuring system |
| CN105321547A (en) * | 2015-11-27 | 2016-02-10 | 成都思博特科技有限公司 | Novel recording system based on analog/digital conversion circuit |
| CN109952706A (en) * | 2016-09-14 | 2019-06-28 | 华为技术有限公司 | Filter circuit with programmable-gain and frequency response |
| CN208091481U (en) * | 2018-04-20 | 2018-11-13 | 国家电投集团江苏海上风力发电有限公司 | A kind of data acquisition device |
| CN211579941U (en) * | 2019-07-18 | 2020-09-25 | 恒大智慧充电科技有限公司 | Signal acquisition device, charging equipment, vehicle-mounted control equipment and electric automobile |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113879164A (en) * | 2021-10-21 | 2022-01-04 | 江苏华鹏智能仪表科技股份有限公司 | Method for collecting signals of control guide circuit of alternating current charging equipment |
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Effective date of registration: 20210519 Address after: 201613 301 Rong Le Dong Road, Songjiang District, Shanghai. Applicant after: Hengda hengchi New Energy Vehicle Research Institute (Shanghai) Co.,Ltd. Address before: 518000 Room 201, building A, No. 1, Qian Wan Road, Qianhai Shenzhen Hong Kong cooperation zone, Shenzhen, Guangdong (Shenzhen Qianhai business secretary Co., Ltd.) Applicant before: HENGDA SMART CHARGING TECHNOLOGY Co.,Ltd. |