CN107068171A - A kind of electromagnetism interference type data storage system - Google Patents
A kind of electromagnetism interference type data storage system Download PDFInfo
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- CN107068171A CN107068171A CN201710181330.9A CN201710181330A CN107068171A CN 107068171 A CN107068171 A CN 107068171A CN 201710181330 A CN201710181330 A CN 201710181330A CN 107068171 A CN107068171 A CN 107068171A
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- 238000013500 data storage Methods 0.000 title claims abstract description 11
- 239000000203 mixture Substances 0.000 claims abstract description 14
- 239000003990 capacitor Substances 0.000 claims description 54
- 230000003750 conditioning effect Effects 0.000 claims description 13
- 230000005611 electricity Effects 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 description 6
- 230000033228 biological regulation Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000003321 amplification Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000005347 demagnetization Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
- G11B33/14—Reducing influence of physical parameters, e.g. temperature change, moisture, dust
- G11B33/1493—Electro-Magnetic Interference [EMI] or Radio Frequency Interference [RFI] shielding; grounding of static charges
Abstract
The invention discloses a kind of electromagnetism interference type data storage system, it is characterized in that, mainly by microprocessor, AD converter, holder and the power supply being connected with microprocessor, the signal bandwidth adjustments circuit being connected with AD converter, the signal processing unit being connected with signal bandwidth adjustments circuit, and the signal picker composition being connected with signal processing unit.The signal processing unit and signal bandwidth adjustments circuit of the present invention can be handled the signal that collector is exported, make signal more stable, more accurate, the accuracy of the data value stored by the present invention is ensured that, related personnel is obtained truth when equipment works.
Description
Technical field
It is a kind of electromagnetism interference type data storage system specifically the present invention relates to a kind of data storage system.
Background technology
Data acquisition stocking system is wide in the field such as industrial automation production, national defence and military monitoring and environmental monitoring
General application.Data acquisition stocking system can continuously capture characteristic when various data-signals or the failure generation of equipment
It is believed that number, and the signal of capture is stored, after being analyzed and processed so as to related personnel to signal, equipment can be obtained in time
The situation of work.
However, the place for the Electromagnetic Interference signal that existing data acquisition stocking system is mixed into signal in transmitting procedure
Reason effect is poor, causes the data value after storage error occur, causes related personnel can not really obtain the feelings of equipment work
Condition.
The content of the invention
It is an object of the invention to overcome data acquisition stocking system of the prior art to signal in transmitting procedure mix
There is provided a kind of electromagnetism interference type data storage system for the poor defect of the treatment effect of the Electromagnetic Interference signal entered.
The present invention is achieved through the following technical solutions：A kind of electromagnetism interference type data storage system, mainly by Wei Chu
Manage device, the AD converter being connected with microprocessor, holder and power supply, the signal bandwidth adjustments being connected with AD converter
Circuit, the signal processing unit being connected with signal bandwidth adjustments circuit, and be connected with signal processing unit
Signal picker composition；The signal picker and holder are connected with power supply respectively；The signal processing unit
The interference signal filter circuit being connected by input with signal picker, and input and interference signal filter circuit output
Hold the signal conditioning circuit composition being connected；The output end of the signal conditioning circuit is connected with signal bandwidth adjustments circuit.
The interference signal filtered electrical routing amplifier P1, one end is connected with signal picker, the other end and amplifier
The resistance R1 that P1 positive pole is connected, positive pole is connected with amplifier P1 positive electrode, polar capacitor C2, the N poles of negative pole ground connection
Be connected with amplifier P1 output end, the diode D1 that P poles are connected after resistance R3 with amplifier P1 negative pole, it is and negative
The polarity that pole is connected after resistance R2 with amplifier P1 negative pole, positive pole is connected after resistance R4 with diode D1 P poles
Electric capacity C1 is constituted；The amplifier P1 negative electrode ground connection, its output end as interference signal filter circuit output end and with
Signal conditioning circuit is connected, and amplifier P1 positive electrode is also connected with external power source；The negative pole of the polar capacitor C1
Ground connection.
The signal conditioning circuit is by amplifier P2, and positive pole is connected with amplifier P1 output end after resistance R5, born
The polar capacitor C4 that pole is connected with amplifier P2 positive pole, one end is connected with polar capacitor C4 positive pole, negative pole is grounded
Resistance R6, the resistance R7 that one end is connected with polar capacitor C4 positive pole, the other end is connected with amplifier P2 output end, just
The polar capacitor C3 that pole is connected with polar capacitor C4 positive pole, negative pole is connected with amplifier P2 output end, and P poles warp
Be connected after adjustable resistance R8 with amplifier P2 negative pole, two that N poles are connected after resistance R9 with amplifier P2 output end
Pole pipe D2 is constituted；The positive electrode of the amplifier P2 is connected with external power source, its negative electrode ground connection, amplifier P2 output
Hold the output end as signal conditioning circuit and be connected with signal bandwidth adjustments circuit；The P poles ground connection of the diode D2.
The signal bandwidth adjustments electric routing amplifier P3, triode VT1, triode VT2, triode VT3, one end is with putting
Big device P2 output end is connected, the resistance R11 that the other end is connected with amplifier P3 positive pole, and one end is defeated with amplifier P2's
Go out the resistance R10 that end is connected, the other end is grounded, positive pole is connected after resistance R12 with amplifier P3 negative pole, negative pole ground connection
Polar capacitor C5, positive pole is connected after resistance R15 with amplifier P3 negative electrode, negative pole and triode VT2 base stage phase
The polar capacitor C8 of connection, one end is connected with amplifier P3 output end, the other end is connected with triode VT1 base stage
Resistance R14, positive pole is connected after resistance R13 with amplifier P3 positive electrode, the polar capacitor C7 of negative pole ground connection, and positive pole is with putting
Big device P3 positive electrode is connected, polar capacitor C6, P pole and the polar capacitor C7 that negative pole is connected with polar capacitor C7 negative pole
Positive pole be connected after ground connection, diode D3, the N pole that is connected with triode VT3 colelctor electrode of N poles and diode D3 N poles
Be connected, the diode D4 that P poles are connected with triode VT1 colelctor electrode, one end is connected with triode VT1 emitter stage,
The adjustable resistance R16 that the other end is connected with triode VT3 base stage, and one end are connected with triode VT2 colelctor electrode
The resistance R17 compositions that ground connection, the other end are connected with triode VT3 emitter stage afterwards；The negative electrode ground connection of the amplifier P3,
Its positive electrode is also connected with external power source；The emitter stage of the triode VT2 is connected with triode VT1 emitter stage；Institute
Triode VT3 emitter stage is stated as the output end of signal bandwidth adjustments circuit and is connected with AD converter.
The present invention compared with prior art, with advantages below and beneficial effect：
(1) signal processing unit of the invention and signal bandwidth adjustments circuit can enter to the signal that collector is exported
Row processing, makes signal more stable, more accurate, ensures that the accuracy of the data value stored by the present invention, make related personnel
Truth during equipment work can be obtained.
(2) interference signal filter circuit and signal conditioning circuit are provided with signal processing unit of the invention, done
Disturbing signal filter circuit can be eliminated or be suppressed to the Electromagnetic Interference signal in signal, make signal more steady；Signal condition
Circuit can be limited the frequency of signal, to filter out the High-frequency Interference and spike burr in signal, and to the height in signal
Frequency interference is filtered out, and is made signal cleaner, more steady, more accurate, is ensured that the microprocessor of the present invention receives standard
True signal.
(3) signal bandwidth adjustments circuit of the invention can be adjusted to the bandwidth of signal, frequency, make the band of input signal
The bandwidth of wide, frequency and sampled signal, frequency are consistent, so as to improve the accuracy of the data value of the invention stored.
Brief description of the drawings
Fig. 1 is overall structure diagram of the invention.
Fig. 2 is the electrical block diagram of the signal processing unit of the present invention.
Fig. 3 is the electrical block diagram of the signal bandwidth adjustments circuit of the present invention.
Embodiment
The present invention is described in further detail with reference to embodiment and its accompanying drawing, but embodiments of the present invention are not
It is limited to this.
Embodiment
As shown in figure 1, the present invention is main by microprocessor, the AD converter being connected with microprocessor, holder and
Power supply, the signal bandwidth adjustments circuit being connected with AD converter, the signal receiving area being connected with signal bandwidth adjustments circuit
Manage unit, and the signal picker composition being connected with signal processing unit.The signal picker and holder point
It is not connected with power supply.Wherein, described signal processing unit is as shown in Fig. 2 it is by interference signal filter circuit and letter
Number modulate circuit composition.
The microprocessor of the present invention employs C8051F360 single-chip microcomputers to realize, the signal input interface of the microprocessor
It is connected with AD converter, its power input interface is connected with power supply, its amplifier output interface is connected with holder.Its
In, AD converter employs the converter being made up of ADS8515 modulus conversion chips, the signal input I/O interfaces of AD converter
It is connected with signal bandwidth adjustments circuit, the signal input interface of its signal output U/O interfaces and microprocessor is by electrically connecting.
The power supply of the present invention is 12V dc sources, and the 12V power supplys are powered for whole system.
During operation, signal picker employs MDVA 0-5V signal picker to realize, the signal picker is used for
The data-signal during work of identification is gathered, the signal collected is simultaneously converted to signal is transferred to after electric signal by signal picker
Reception processing unit.The signal processing unit is eliminated or suppressed to the Electromagnetic Interference signal in signal, makes signal
It is more steady；And the frequency of signal is limited, to filter out the High-frequency Interference and spike burr in signal, and in signal
High-frequency Interference is filtered out, and makes signal cleaner, more steady, more accurate, signal processing unit is then by the signal after processing
It is transferred to signal bandwidth adjustments circuit.The signal bandwidth adjustments circuit is adjusted to the bandwidth of signal, frequency, makes input signal
Bandwidth, the bandwidth of frequency and sampled signal, frequency it is consistent, signal bandwidth adjustments circuit by bandwidth, frequency regulation or signal
It is transferred to AD converter.The signal of reception is converted to data-signal, and the data-signal that will be obtained after conversion by the AD converter
It is transferred to microprocessor.Microprocessor obtains data after being analyzed and processed by its internal transport and placing device set to data-signal
The data value is then converted to Code Signal and is transferred to holder by the converter in value, microprocessor, so as to looking into for related personnel
Ask.The holder of the present invention employs K8G06U0M holders to realize, the holder has storage volume is big, performance is stable etc.
Feature.
As shown in Fig. 2 the signal processing unit is made up of interference signal filter circuit and signal conditioning circuit.Its
In, the interference signal filter circuit is as shown in Fig. 2 it is by model OP364 amplifier P1, and resistance is 1k Ω resistance
R1, resistance is 47k Ω resistance R2, and resistance is 10k Ω resistance R3, and resistance is 20k Ω resistance R4, and capacitance is 0.2 μ F's
Polar capacitor C1, capacitance be 10 μ F polar capacitor C2, and model 1N4011 diode D1 composition.
During connection, resistance R1 one end is connected with signal picker, and the other end is connected with amplifier P1 positive pole.Pole
Property electric capacity C2 positive pole be connected with amplifier P1 positive electrode, negative pole ground connection.Diode D1 N poles and amplifier P1 output
End is connected, and negative pole of the P poles with amplifier P1 after resistance R3 is connected.Polar capacitor C1 negative pole after resistance R2 with amplification
Device P1 negative pole is connected, and positive pole is connected after resistance R4 with diode D1 P poles.
The amplifier P1 negative electrode ground connection, its output end as interference signal filter circuit output end and and signal
Modulate circuit is connected, and amplifier P1 positive electrode is also connected with outside 5V dc sources, and the 5V dc sources are to put
Big device P1 provides operating voltage；The negative pole ground connection of the polar capacitor C1.
Further, the signal conditioning circuit is as shown in Fig. 2 it is by model OP364 amplifier P2, and resistance is
10k Ω resistance R5, resistance is 100 Ω resistance R6, and resistance is 2k Ω resistance R7, and resistance is 0~100k Ω adjustable electric
R8 is hindered, resistance is 20k Ω resistance R9, and capacitance is 0.2 μ F polar capacitor C3, and capacitance is 0.01 μ F polar capacitor C4, with
And model 1N4011 diode D2 compositions.
During connection, the output end of polar capacitor C4 positive pole with amplifier P1 after resistance R5 is connected, negative pole and amplification
Device P2 positive pole is connected.Resistance R6 one end is connected with polar capacitor C4 positive pole, negative pole ground connection.Resistance R7 one end with
Polar capacitor C4 positive pole is connected, and the other end is connected with amplifier P2 output end.Polar capacitor C3 positive pole and polarity
Electric capacity C4 positive pole is connected, and negative pole is connected with amplifier P2 output end.Diode D2 P poles after adjustable resistance R8 with
Amplifier P2 negative pole is connected, and output end of the N poles with amplifier P2 after resistance R9 is connected.
The positive electrode of the amplifier P2 is connected with outside 5V dc sources, its negative electrode ground connection, amplifier P2's
Output end as signal conditioning circuit output end and be connected with signal bandwidth adjustments circuit, its 5V dc source be amplifier
P2 provides operating voltage；The P poles ground connection of the diode D2.
During operation, the signal that resistance R1 is exported to signal picker is limited, and obtains the electromagnetic wave in signal
Cut down, the signal after electromagnetic wave is cut in is amplified through amplifier P1, and the electromagnetic wave signal in signal is also exaggerated simultaneously,
Signal can not then be exported by amplifier P1 adjustment output end, and the signal is then defeated as the negative pole of feedback pole through amplifier P1
Go out, the signal of the output is filtered through the resistance R2 signals carried out after current limliting, current limliting through polar capacitor C1, effectively by signal
In Electromagnetic Interference signal eliminated, the level of filtered signal is relatively low, and the electric current of signal is less than -4V, diode D1
It is switched on, signal is then re-entered into amplifier P1 by the resistance R3 passages formed, amplifier P1 is carried out again to signal
Amplification.Now, the level of signal is stable level, and signal can be exported by amplifier P1 adjustment output end.
Meanwhile, the channel transfer that the signal of amplifier P1 output is formed through resistance R5 passes through the low frequency after resistance R5
Signal carries out demagnetization through resistance R6, and the signal after demagnetization is filtered through polar capacitor C4, effectively eliminates what is handled in signal
Interference signal, the signal after filtering enters line frequency through amplifier P2, adjustable resistance R8, diode D2 and resistance the R9 frequency modulator formed
Rate is adjusted, and makes the frequency of low frequency signal consistent with signal criterion frequency, output end output of the signal after regulation through amplifier P2；
And the high-cut filter by resistance R5 reference frequency signal then through resistance R7 and polar capacitor C3 formation is filtered, by height
The polar capacitor C3 of wave filter negative pole output is hindered, the signal that the signal of polar capacitor C3 outputs is exported with amplifier P2 is passed jointly
Signal bandwidth adjustments circuit is defeated by, the Electromagnetic Interference signal in signal is carried out so that signal processing unit is realized
Eliminate or suppress, make signal more steady；And the frequency of signal is limited, to filter out the High-frequency Interference and spike hair in signal
Thorn, and is filtered out to the High-frequency Interference in signal, make signal it is cleaner, more steadily, more accurately effect.
As shown in figure 3, amplifier P3 of the signal bandwidth adjustments circuit by model OP364, the three of model 3DG12
Pole pipe VT1~VT3, resistance is 20k Ω resistance R10, resistance R15, resistance R17, and resistance is 10k Ω resistance R11, resistance
R14, resistance is 2k Ω resistance R12, and resistance is 12k Ω resistance R13, and resistance is 0~200k Ω adjustable resistance R16, is held
Be worth for 0.01 μ F polar capacitor C5, capacitance is 0.2 μ F polar capacitor C6, polar capacitor C7, capacitance for 22 μ F polarity electricity
Hold C8, and model 1N4012 diode D3 and diode D4 are constituted.
During connection, resistance R11 one end is connected with amplifier P2 output end, the positive pole phase of the other end and amplifier P3
Connection.Resistance R10 one end is connected with amplifier P2 output end, other end ground connection.Polar capacitor C5 positive pole is through resistance
Negative pole after R12 with amplifier P3 is connected, negative pole ground connection.Polar capacitor C8 positive pole is after resistance R15 with amplifier P3's
Negative electrode is connected, and negative pole is connected with triode VT2 base stage.
Resistance R14 one end is connected with amplifier P3 output end, and the other end is connected with triode VT1 base stage.
Positive electrode of the polar capacitor C7 positive pole with amplifier P3 after resistance R13 is connected, negative pole ground connection.Polar capacitor C6 positive pole
It is connected with amplifier P3 positive electrode, negative pole is connected with polar capacitor C7 negative pole.Diode D3 P poles and polar capacitor
C7 positive pole is grounded after being connected, and N poles are connected with triode VT3 colelctor electrode.
Diode D4 N poles are connected with diode D3 N poles, and P poles are connected with triode VT1 colelctor electrode.It is adjustable
Resistance R16 one end is connected with triode VT1 emitter stage, and the other end is connected with triode VT3 base stage.Resistance R17
One end be connected with triode VT2 colelctor electrode after be grounded, the other end is connected with triode VT3 emitter stage.
The negative electrode ground connection of the amplifier P3, its positive electrode is also connected with outside 5V dc sources, the 5V direct currents
Source provides operating voltage for amplifier P3；The emitter stage of the triode VT2 is connected with triode VT1 emitter stage；It is described
Triode VT3 emitter stage as signal bandwidth adjustments circuit output end and be connected with AD converter.
During operation, flow plug of the signal through resistance R10 and resistance R11 formation of signal processing unit output, the resistance
Stream device suppresses to the heavy current of signal, and the signal after electric current suppresses is transferred to amplifier P3 and resistance R12 and polar capacitor
The low-frequency amplifier of C5 formation, the low-frequency amplifier is amplified to the low frequency signal in signal, wherein, in low-frequency amplifier
Polar capacitor C5 is used to the interference signal in low frequency signal is carried out to disappear, the output that low frequency signal is carried out through amplifier P3, and
The reference signal then negative electrode output through amplifier P3, the signal of amplifier P3 output end transmission is transferred to three through resistance R14
Collector VT1, three collector VT2, adjustable resistance R16 and the amplifying regulator of resistance R17 formation, amplifier P3 negative electrode output
High-cut filter of the reference signal through resistance R15 and polar capacitor C8 formation, the high-cut filter is to the garbage signal in signal
Suppressed, the signal after suppression is transferred to amplifying regulator, amplifying regulator is mixed to low frequency signal and reference signal formation
The bandwidth of frequency signal, frequency are adjusted, wherein the resistance by adjusting adjustable resistance R16, carries out the pulse current of signal
Regulation, realization is to the bandwidth of signal, the regulation of frequency, after the signal after regulation then carries out signal frequency adjustment through three collector VT3
Output so that signal bandwidth adjustments circuit realirations is adjusted to the bandwidth of signal, frequency, make input signal bandwidth,
The consistent effect of the bandwidth of frequency and sampled signal, frequency, effectively raises the accuracy for the data value that the present invention is stored.
The signal processing unit and signal bandwidth adjustments circuit of the present invention can be carried out to the signal that collector is exported
Processing, makes signal more stable, more accurate, ensures that the accuracy of the data value stored by the present invention, enable related personnel
Obtain truth during equipment work.
According to above-described embodiment, you can realize the present invention well.
Claims (4)
1. a kind of electromagnetism interference type data storage system, it is characterised in that：Mainly by microprocessor, it is connected with microprocessor
AD converter, holder and the power supply connect, the signal bandwidth adjustments circuit being connected with AD converter, with signal bandwidth adjustments electricity
The signal processing unit that road is connected, and the signal picker composition being connected with signal processing unit；It is described
Signal picker and holder are connected with power supply respectively；The signal processing unit is by input and signal picker phase
The interference signal filter circuit of connection, and the signal conditioning circuit that input is connected with the output end of interference signal filter circuit
Composition；The output end of the signal conditioning circuit is connected with signal bandwidth adjustments circuit.
2. a kind of electromagnetism interference type data storage system according to claim 1, it is characterised in that the interference signal
Filtered electrical routing amplifier P1, the resistance that one end is connected with signal picker, the other end is connected with amplifier P1 positive pole
R1, positive pole is connected with amplifier P1 positive electrode, negative pole is grounded polar capacitor C2, N pole and amplifier P1 output end phase
Connection, the diode D1 that is connected after resistance R3 with amplifier P1 negative pole of P poles, and negative pole after resistance R2 with amplifier
The polar capacitor C1 compositions that P1 negative pole is connected, positive pole is connected after resistance R4 with diode D1 P poles；The amplifier
P1 negative electrode ground connection, its output end as interference signal filter circuit output end and be connected with signal conditioning circuit, should
Amplifier P1 positive electrode is also connected with external power source；The negative pole ground connection of the polar capacitor C1.
3. a kind of electromagnetism interference type data storage system according to claim 2, it is characterised in that the signal condition
Electric routing amplifier P2, positive pole is connected after resistance R5 with amplifier P1 output end, negative pole and amplifier P2 positive pole phase
The polar capacitor C4 of connection, one end is connected with polar capacitor C4 positive pole, the resistance R6 of negative pole ground connection, one end and polar capacitor
The resistance R7 that C4 positive pole is connected, the other end is connected with amplifier P2 output end, the positive pole of positive pole and polar capacitor C4
Be connected, the polar capacitor C3 that negative pole is connected with amplifier P2 output end, and P poles after adjustable resistance R8 with amplifier
The diode D2 compositions that P2 negative pole is connected, N poles are connected after resistance R9 with amplifier P2 output end；The amplifier
P2 positive electrode is connected with external power source, its negative electrode ground connection, and amplifier P2 output end is used as signal conditioning circuit
Output end is simultaneously connected with signal bandwidth adjustments circuit；The P poles ground connection of the diode D2.
4. a kind of electromagnetism interference type data storage system according to any one of claim 3, it is characterised in that the letter
Number bandwidth adjustment circuit is by amplifier P3, triode VT1, triode VT2, triode VT3, one end and amplifier P2 output end
Be connected, the resistance R11 that the other end is connected with amplifier P3 positive pole, one end is connected, separately with amplifier P2 output end
The resistance R10 of one end ground connection, positive pole is connected after resistance R12 with amplifier P3 negative pole, the polar capacitor C5 of negative pole ground connection,
Positive pole is connected after resistance R15 with amplifier P3 negative electrode, the polar capacitor that negative pole is connected with triode VT2 base stage
C8, the resistance R14 that one end is connected with amplifier P3 output end, the other end is connected with triode VT1 base stage, positive pole warp
Be connected after resistance R13 with amplifier P3 positive electrode, the polar capacitor C7 of negative pole ground connection, positive pole and amplifier P3 positive electrode
It is connected, after polar capacitor C6, the P pole that negative pole is connected with polar capacitor C7 negative pole is connected with polar capacitor C7 positive pole
Diode D3, the N pole that ground connection, N poles are connected with triode VT3 colelctor electrode is connected with diode D3 N poles, P poles and three
The diode D4 that pole pipe VT1 colelctor electrode is connected, one end is connected with triode VT1 emitter stage, the other end and triode
The adjustable resistance R16 that VT3 base stage is connected, and one end be connected with triode VT2 colelctor electrode after ground connection, the other end with
The resistance R17 compositions that triode VT3 emitter stage is connected；The amplifier P3 negative electrode ground connection, its positive electrode also with outside
Portion's power supply is connected；The emitter stage of the triode VT2 is connected with triode VT1 emitter stage；The hair of the triode VT3
Emitter-base bandgap grading as signal bandwidth adjustments circuit output end and be connected with AD converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710181330.9A CN107068171A (en) | 2017-03-24 | 2017-03-24 | A kind of electromagnetism interference type data storage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710181330.9A CN107068171A (en) | 2017-03-24 | 2017-03-24 | A kind of electromagnetism interference type data storage system |
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| CN107068171A true CN107068171A (en) | 2017-08-18 |
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| CN201710181330.9A Pending CN107068171A (en) | 2017-03-24 | 2017-03-24 | A kind of electromagnetism interference type data storage system |
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| CN106054753A (en) * | 2016-08-15 | 2016-10-26 | 四川华索自动化信息工程有限公司 | Signal comprehensive processing system for flue temperature monitoring device |
| CN206685135U (en) * | 2017-03-24 | 2017-11-28 | 成都云材智慧数据科技有限公司 | A kind of electromagnetism interference type data storage system |
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- 2017-03-24 CN CN201710181330.9A patent/CN107068171A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203606379U (en) * | 2013-10-30 | 2014-05-21 | 湖北汽车工业学院 | A vehicle speed sensor test and control system |
| CN105680805A (en) * | 2015-12-31 | 2016-06-15 | 深圳先进技术研究院 | Direct current coupling high precision amplification apparatus |
| CN105699753A (en) * | 2016-03-29 | 2016-06-22 | 国网上海市电力公司 | Online monitoring device for grounding current of transformer core |
| CN105912996A (en) * | 2016-04-01 | 2016-08-31 | 成都奥卡卡科技有限公司 | High precision face identification system |
| CN106054753A (en) * | 2016-08-15 | 2016-10-26 | 四川华索自动化信息工程有限公司 | Signal comprehensive processing system for flue temperature monitoring device |
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