CN106357235A - Big data-based mixed adjustment signal processing system for sewage network monitoring devices - Google Patents
Big data-based mixed adjustment signal processing system for sewage network monitoring devices Download PDFInfo
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- CN106357235A CN106357235A CN201610753240.8A CN201610753240A CN106357235A CN 106357235 A CN106357235 A CN 106357235A CN 201610753240 A CN201610753240 A CN 201610753240A CN 106357235 A CN106357235 A CN 106357235A
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G5/00—Tone control or bandwidth control in amplifiers
- H03G5/16—Automatic control
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H11/00—Networks using active elements
- H03H11/02—Multiple-port networks
- H03H11/04—Frequency selective two-port networks
- H03H11/12—Frequency selective two-port networks using amplifiers with feedback
- H03H11/126—Frequency selective two-port networks using amplifiers with feedback using a single operational amplifier
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Abstract
The invention discloses a big data-based mixed adjustment type signal processing system for the sewage network monitoring device, which is mainly composed of a processing chip U, a triode VT2, a polarity capacitance C6, a polarity capacitance C7, a signal bandwidth adjusting circuit, an electromagnetic interference filter circuit , a second-order low-pass filter circuit, and a frequency error correction circuit connected to the CS pin, the G pin, the CLK pin and the OUT pin of the processing chip U. The present invention can eliminate or suppress the low frequency interference in the signal, and can withstand the amplification of frequency points of the signals after being interference processed, making the signal more stable; moreover, the present invention can also correct the phase and frequency error of the multi-carrier data signals, thereby improving the signal processing effect and effectively ensuring that the data processing center obtain the accurate sewage data. the and the present invention can also correct the phase and frequency errors of the multi-wave signal in the data.
Description
Technical field
The present invention relates to a kind of processing system, specifically refer to a kind of mixing of the blowdown net monitoring device based on big data and adjust
Integer signal processing system.
Background technology
Present society is the society of a high speed development, and science and technology is flourishing, information flow, and the exchange between people is increasingly
Closely, life is also more and more convenient, and big data is exactly the product of this cyberage.Big data refers to many n-ary form ns, from
The huge data set that many sources are collected and come, has stronger real-time.With the continuous development of Information technology, big data quilt
It is widely used in blowdown net monitoring device.Current mainly processed by big data based on the blowdown net monitoring device of big data
The heart, monitoring point collecting cassette, regional signal receive-transmit system, regional signal processing system and area data storage system composition；And it is big
Whether the sewage data message that data processing centre obtains accurately then depends primarily on regional signal processing system to signal processing
Whether accurate.
However, there is signal processing effect in the regional signal processing system of the existing blowdown net monitoring device based on big data
Really poor, lead to the sewage data message accuracy that data processing centre obtains not high, cause the blowdown net monitoring personnel can not be accurate
The sewage information understanding in soil pipe it is impossible to effectively be administered to sewage so that the living environment of people be subject to tight
The impact of weight.
Therefore it provides a kind of blowdown net monitoring device signal processing based on big data that can improve signal processing effect
System then seem excellent for important.
Content of the invention
It is an object of the invention to overcoming the regional signal processing system of the existing blowdown net monitoring device based on big data
There is the defect of signal processing effect difference in system, the present invention provides a kind of blowdown net monitoring device Mixed adjustment based on big data
Type signal processing system.
The present invention is achieved through the following technical solutions: the blowdown net monitoring device Mixed adjustment type letter based on big data
Number processing system, mainly by process chip u, audion vt2, positive pole is connected with the in pin of process chip u after resistance r8,
The polar capacitor c6 that negative pole is connected with the comp pin of process chip u after inductance l1, the base stage phase of one end and audion vt2
The resistance r11 that connection, the other end are connected with the comp pin of process chip u, n pole is connected with the base stage of audion vt2, p
The diode d5 that pole is connected with the b pin of process chip u after resistance r9, positive pole is connected with the b pin of process chip u,
The polar capacitor c7 that negative pole is connected with the base stage of audion vt2 after adjustable resistance r10, is serially connected in the transmitting of audion vt2
Electromagnetic interference filter circuit between the out pin of pole and process chip u, the second order being connected with the vc pin of process chip u
Low-pass filter circuit, is serially connected in the signal bandwidth adjustment circuit between second-order low-pass filter circuit and the in pin of process chip u,
And the correction of frequency errors circuit group that is connected with the cs pin of process chip u, g pin, clk pin and out pin respectively
Become；The grounded collector of described audion vt2；The gnd pin ground connection of described process chip u；The vc pin of described process chip u
It is connected with outside 12v DC source.
Described signal bandwidth adjustment circuit by amplifier p4, amplifier p5, audion vt7, audion vt8, negative pole with put
The polar capacitor c17 that the positive pole of big device p4 is connected, positive pole is connected with second-order low-pass filter circuit, p pole after resistance r26 with
The diode d12 that the negative pole of amplifier p4 is connected, n pole is connected with the colelctor electrode of audion vt7, positive pole and audion vt7
Emitter stage the polar capacitor c18, p pole and the amplifier p5 that are connected, are connected with the positive pole of amplifier p5 after negative pole resistance r30
Negative pole be connected after ground connection, the diode d14 that is connected with the outfan of amplifier p5 after resistance r31 of n pole, positive pole with put
The outfan of big device p5 is connected, negative pole is connected with the in pin of process chip u polar capacitor c21, negative pole and amplifier
The positive pole of p5 is connected, positive pole is connected with the base stage of audion vt7 after inductance l4 polar capacitor c19, one end and polarity
The adjustable resistance r28 that the positive pole of electric capacity c19 is connected, the other end is connected with the base stage of audion vt8, p pole and amplifier p4
Outfan be connected, diode d13 that the emitter stage of n pole audion vt8 is connected, and positive pole after resistance r27 with put
The polar capacitor c20 group that the outfan of big device p4 is connected, negative pole is connected with the colelctor electrode of audion vt8 after resistance r29
Become；The minus earth of described polar capacitor c18；The positive pole of described polar capacitor c19 is also connected with the negative pole of amplifier p4；Institute
The colelctor electrode stating audion vt8 is also connected with the outfan of amplifier p5.
Further, described electromagnetic interference filter circuit is by amplifier p3, positive pole after inductance l2 with amplifier p3 just
The polar capacitor c12 that pole is connected, negative pole is connected with the emitter stage of audion vt2, the positive pole phase of one end and polar capacitor c12
Connect, the resistance r19 of other end ground connection, p pole is connected with the positive pole of polar capacitor c12 after resistance r18, n pole and amplifier
The diode d9 that the outfan of p3 is connected, positive pole is connected with the negative pole of amplifier p3, the polar capacitor c13, p of minus earth
The diode d10 that pole is connected with the outfan of amplifier p3, n pole is connected with the negative pole of polar capacitor c13 after inductance l3,
The polarity electricity that negative pole is connected with the base stage of audion vt6, positive pole is connected with the negative pole of polar capacitor c13 after resistance r20
Hold c14, negative pole is connected with the colelctor electrode of audion vt5, positive pole is connected with the outfan of amplifier p3 after resistance r21
Polar capacitor c15, one end is connected with the colelctor electrode of audion vt6, the other end is adjustable with what the base stage of audion vt5 was connected
After resistance r25, p pole is connected with the emitter stage of audion vt5 after resistance r24, n pole is connected with the base stage of audion vt5
Ground connection diode d11, and after positive electrode resistance r22 with receive 15 positive pole be connected, negative pole after resistance r23 with diode
The polar capacitor c16 composition that the p pole of d11 is connected；The grounded emitter of described audion vt6, its colelctor electrode and polar capacitor
The positive pole of c15 is connected；The base stage of described audion vt5 is also connected with the out pin of process chip u.
Described second-order low-pass filter electricity routing amplifier p1, audion vt1, field effect transistor mos, positive pole after resistance r4 with
The base stage of audion vt1 is connected, polar capacitor c3, negative pole and the amplification of the input as second-order low-pass filter circuit for the negative pole
The polar capacitor c2 that the positive pole of device p1 is connected, positive pole is connected with the colelctor electrode of audion vt1 after resistance r3, p pole and field
The diode d2 that the drain electrode of effect pipe mos is connected, n pole is connected with the negative pole of polar capacitor c2, positive pole and field effect transistor mos
Grid be connected, polar capacitor c1, n pole and field effect that negative pole is connected with the colelctor electrode of audion vt1 after resistance r2
The source electrode of pipe mos is connected, p pole is connected with the vc pin of process chip u Zener diode d1, one end and Zener diode
The p pole of d1 is connected, the resistance r1 of the other end and ground connection, and p pole is connected with the colelctor electrode of audion vt1, n pole and audion
The diode d3 that the emitter stage of vt1 is connected, p pole is connected with the negative pole of amplifier p1, n pole after resistance r5 with amplifier p1
The diode d4 that is connected of outfan, positive pole is connected with the negative pole of amplifier p1 after resistance r6, negative pole and amplifier p1
The polar capacitor c4 that is connected of outfan, and be connected with the outfan of amplifier p1 after positive electrode resistance r7, minus earth
Polar capacitor c5 composition；The minus earth of described polar capacitor c2；The positive pole of described amplifier p1 is also with polar capacitor c3's
Positive pole is connected, its outfan is also connected with the emitter stage of audion vt1 and the positive pole of polar capacitor c17 respectively, its negative pole
Ground connection.
Described correction of frequency errors electricity routing amplifier p2, audion vt3, the cs of audion vt4, p pole and process chip u
The diode d6 that pin is connected, n pole is connected with the base stage of audion vt4, positive pole is connected with the g pin of process chip u,
The polar capacitor c10 that negative pole is connected with the emitter stage of audion vt4, p pole emitter stage with audion vt4 after resistance r15
Be connected, diode d8 that n pole is connected with the colelctor electrode of audion vt3, negative pole is connected with the emitter stage of audion vt4,
The colelctor electrode of the polar capacitor c11 that positive pole is connected with the colelctor electrode of audion vt3 after resistance r17, one end and audion vt3
The base stage of the adjustable resistance r16 that after being connected, ground connection, the other end are connected with the base stage of audion vt3, p pole and audion vt3
Be connected, diode d7 that n pole is connected with the outfan of amplifier p2 after resistance r14, with amplifier after positive electrode resistance r13
The polar capacitor c9 that the negative pole of p2 is connected, negative pole is connected with the outfan of amplifier p2, and positive pole is with amplifier p2's
The polar capacitor c8 composition that positive pole is connected, negative pole is connected with the outfan of amplifier p2 after resistance r12；Described audion
The grounded collector of vt4；The base stage of described audion vt3 is also connected with the negative pole of amplifier p2, its emitter stage with process core
The clk pin of piece u is connected；The positive pole of described amplifier p2 is connected with the out pin of process chip u, its outfan is then made
Outfan for correction of frequency errors circuit.
For the practical effect of the present invention, described process chip u then preferentially employs mb40978 integrated chip and comes in fact
Existing.
The present invention compared with prior art has advantages below and a beneficial effect:
(1) low-frequency interference signal in signal being eliminated or suppressed of the present invention, and can be to anti-interference process after
The frequency of signal be amplified, make signal more steady；And the present invention can also be to the phase of the many cultivations ripple signal in data signal
Position and frequency error are corrected, thus improve the effect to signal processing for the present invention, effectively ensure that Data processing
The accuracy of the sewage data message that gains in depth of comprehension arrive, and ensure that blowdown net monitoring personnel can accurately understand the dirt in soil pipe
Water information.
(2) present invention can be adjusted to the frequency bandwidth of signal, and the low current signal in signal or electric charge can be believed
Number being amplified, making signal more stable, thus improve the accuracy to signal processing for the present invention.
(3) present invention can be to the signal magnetic bias that drive waveforms produce in transmitting procedure and circuit parameter and electromagnetic wave
The electromagnetic interference producing is suppressed, and so that sampled signal wave frequency and the wave frequency of input signal is consistent, ensures that this
The bright accuracy to signal processing.
(4) process chip u of the present invention then preferentially employs mb40978 integrated chip to realize, and this chip is electric with periphery
Road combines, and can effectively improve stability and the reliability of the present invention.
Brief description
Fig. 1 is the overall structure block diagram of the present invention.
Fig. 2 is the electrical block diagram of the electromagnetic interference filter circuit of the present invention.
Fig. 3 is the electrical block diagram of the signal bandwidth adjustment circuit of the present invention.
Specific embodiment
With reference to embodiment, the present invention is described in further detail, but embodiments of the present invention not limited to this.
As shown in figure 1, the present invention is mainly by process chip u, audion vt2, resistance r8, resistance r9, adjustable resistance r10,
Resistance r11, polar capacitor c6, polar capacitor c7, inductance l1, diode d5, signal bandwidth adjustment circuit, EMI Filtering electricity
Road, second-order low-pass filter circuit, and correction of frequency errors circuit composition.
During connection, the positive pole of polar capacitor c6 is connected with the in pin of process chip u after resistance r8, and negative pole is through inductance
It is connected with the comp pin of process chip u after l1.One end of resistance r11 is connected with the base stage of audion vt2, the other end with
The comp pin of process chip u is connected.The n pole of diode d5 is connected with the base stage of audion vt2, and p pole is after resistance r9
It is connected with the b pin of process chip u.The positive pole of polar capacitor c7 is connected with the b pin of process chip u, and negative pole is through adjustable
It is connected with the base stage of audion vt2 after resistance r10.Electromagnetic interference filter circuit is serially connected in emitter stage and the place of audion vt2
Between the out pin of reason chip u.Second-order low-pass filter circuit is connected with the vc pin of process chip u.Signal bandwidth adjustment electricity
Road is serially connected between second-order low-pass filter circuit and the in pin of process chip u.Correction of frequency errors circuit respectively with process core
The cs pin of piece u, g pin, clk pin are connected with out pin.
The grounded collector of described audion vt2；The gnd pin ground connection of described process chip u；Described process chip u
Vc pin is connected with outside 12v DC source.
During enforcement, for the practical effect of the present invention, described process chip u then preferentially employs stable performance, and
And there is overtemperature protection, overcurrent protection and the accurate mb40978 integrated chip of process to realize.Meanwhile, described polar capacitor
C6, inductance l1, adjustable resistance r10, diode d5 and audion vt2 together form anti-emi filter, this anti-electromagnetism
Interference filter can be eliminated to the Electromagnetic Interference signal of process chip u periphery or be suppressed, and make process chip u compare letter
Will not be disturbed by external electromagnetic ripple signal when number being processed, can effectively be improved the standard to signal processing for process chip u
Really property.The input of described second-order low-pass filter circuit operationally then passes through the blowdown net monitoring dress of data wire and big data
The signal output part of the regional signal receive-transmit system in putting is connected；And the outfan of described correction of frequency errors circuit then leads to
Cross data wire to be connected with the big data processing center in the blowdown net monitoring device of big data.
Further, described second-order low-pass filter electricity routing amplifier p1, audion vt1, field effect transistor mos, resistance r1,
Resistance r2, resistance r3, resistance r4, resistance r5, resistance r6, resistance r7, polar capacitor c1, polar capacitor c2, polar capacitor c3, pole
Property electric capacity c4, polar capacitor c5, Zener diode d1, diode d2, diode d3, and diode d4 composition.
During connection, the positive pole of polar capacitor c3 is connected with the base stage of audion vt1 after resistance r4, and negative pole is as second order
The input of low-pass filter circuit is simultaneously connected with regional signal receive-transmit system.The negative pole of polar capacitor c2 is with amplifier p1 just
Pole is connected, and positive pole is connected with the colelctor electrode of audion vt1 after resistance r3.The p pole of diode d2 and field effect transistor mos
Drain electrode is connected, and n pole is connected with the negative pole of polar capacitor c2.
Wherein, the positive pole of polar capacitor c1 is connected with the grid of field effect transistor mos, negative pole after resistance r2 with audion
The colelctor electrode of vt1 is connected.The n pole of Zener diode d1 is connected with the source electrode of field effect transistor mos, p pole and process chip u
Vc pin is connected.One end of resistance r1 is connected with the p pole of Zener diode d1, the other end and ground connection.The p pole of diode d3
It is connected with the colelctor electrode of audion vt1, n pole is connected with the emitter stage of audion vt1.
Meanwhile, the p pole of diode d4 is connected with the negative pole of amplifier p1, and n pole is defeated with amplifier p1 after resistance r5
Go out end to be connected.The positive pole of polar capacitor c4 is connected with the negative pole of amplifier p1 after resistance r6, and negative pole is with amplifier p1's
Outfan is connected.It is connected with the outfan of amplifier p1 after positive electrode resistance r7 of polar capacitor c5, minus earth.
The minus earth of described polar capacitor c2；The positive pole of described amplifier p1 is also connected with the positive pole of polar capacitor c3
Connect, its outfan is also connected with the emitter stage of audion vt1 and the positive pole of polar capacitor c17 respectively, its minus earth.
During operation, the common shape of the polar capacitor c3 of this second-order low-pass filter circuit, polar capacitor c2, resistance r3 and resistance r4
Double rank wave filter are become, this pair of rank wave filter is stable to signal strainability, and the low-frequency interference signal in signal can be had
The elimination of effect or suppression.Meanwhile, the amplifier p1 in second-order low-pass filter circuit, diode d4, polar capacitor c4, resistance r5 and
Resistance r6 defines signal amplifier, and this signal amplifier can be amplified to the frequency of the signal after anti-interference process, makes letter
Number more steady, thus effective mistake that this second-order low-pass filter circuit enables signal is entered filters and amplify, can effectively improve
The effect to signal processing for the present invention.
Further, described correction of frequency errors electricity routing amplifier p2, audion vt3, audion vt4, resistance
R12, resistance r13, resistance r14, resistance r15, adjustable resistance r16, resistance r17, polar capacitor c8, polar capacitor c9, polarity electricity
Hold c10, polar capacitor c11, diode d6, diode d7, and diode d8 composition.
During connection, the p pole of diode d6 is connected with the cs pin of process chip u, the base stage phase of n pole and audion vt4
Connect.The positive pole of polar capacitor c10 is connected with the g pin of process chip u, and negative pole is connected with the emitter stage of audion vt4.
The p pole of diode d8 is connected with the emitter stage of audion vt4 after resistance r15, and n pole is connected with the colelctor electrode of audion vt3
Connect.The negative pole of polar capacitor c11 is connected with the emitter stage of audion vt4, positive pole collection with audion vt3 after resistance r17
Electrode is connected.
Wherein, ground connection, the other end and audion after one end of adjustable resistance r16 is connected with the colelctor electrode of audion vt3
The base stage of vt3 is connected.The p pole of diode d7 is connected with the base stage of audion vt3, n pole after resistance r14 with amplifier p2
Outfan be connected.It is connected with the negative pole of amplifier p2 after positive electrode resistance r13 of polar capacitor c9, negative pole and amplifier p2
Outfan be connected.The positive pole of polar capacitor c8 is connected with the positive pole of amplifier p2, negative pole after resistance r12 with amplifier
The outfan of p2 is connected.
The grounded collector of described audion vt4；The base stage of described audion vt3 is also connected with the negative pole of amplifier p2
Connect, its emitter stage is connected with the clk pin of process chip u；The positive pole of described amplifier p2 and the out pin of process chip u
Be connected, its outfan then the outfan as correction of frequency errors circuit and with the blowdown net monitoring device of big data in big
Data processing centre is connected.
During operation, the diode d6 of this correction of frequency errors circuit, diode d8, polar capacitor c10, polar capacitor c11,
Resistance r15, resistance r17 and audion vt3 define signal demodulator circuit, the data that this circuit can be exported to process chip u
The phase and frequency of the many cultivations ripple in signal is detected, the electric wave value of the phase and frequency of the many cultivations ripple detecting when it and benchmark
The electric wave value of the phase and frequency planting ripple differs and causes more, the amplifier p2 of this correction of frequency errors circuit, adjustable resistance r16,
The coordination circuits that polar capacitor c8, polar capacitor c9 and diode d7 are formed then are adjusted making to the phase and frequency planting ripple more
The phase and frequency that the sampling phase and frequency planting ripple plants ripple with benchmark more more is identical, makes process chip u outfan data signal
Can stablize and accurately be transferred to big data processing center, thus this correction of frequency errors circuit can effectively improve process chip
The stability of data signal of u output and accuracy.
As shown in Fig. 2 described electromagnetic interference filter circuit is by amplifier p3, resistance r18, resistance r19, resistance r20, resistance
R21, resistance r22, resistance r23, resistance r24, adjustable resistance r25, polar capacitor c12, polar capacitor c13, polar capacitor c14,
Polar capacitor c15, polar capacitor c16, diode d9, diode d10, diode d11, inductance l2, and inductance l3 form.
During connection, the positive pole of polar capacitor c12 is connected with the positive pole of amplifier p3 after inductance l2, negative pole and audion
The emitter stage of vt2 is connected.One end of resistance r19 is connected with the positive pole of polar capacitor c12, and the other end is grounded.Diode d9
P pole be connected with the positive pole of polar capacitor c12 after resistance r18, n pole is connected with the outfan of amplifier p3.Polarity electricity
The positive pole holding c13 is connected with the negative pole of amplifier p3, minus earth.
Wherein, the p pole of diode d10 is connected with the outfan of amplifier p3, n pole after inductance l3 with polar capacitor
The negative pole of c13 is connected.The negative pole of polar capacitor c14 is connected with the base stage of audion vt6, positive pole after resistance r20 with pole
The negative pole of property electric capacity c13 is connected.The negative pole of polar capacitor c15 is connected with the colelctor electrode of audion vt5, and positive pole is through resistance
It is connected with the outfan of amplifier p3 after r21.One end of adjustable resistance r25 is connected with the colelctor electrode of audion vt6, another
End is connected with the base stage of audion vt5.
Meanwhile, the p pole of diode d11 is connected with the emitter stage of audion vt5 after resistance r24, n pole and audion
The base stage of vt5 is grounded after being connected.It is connected with the positive pole receiving 15 after positive electrode resistance r22 of polar capacitor c16, negative pole is through electricity
It is connected with the p pole of diode d11 after resistance r23.The grounded emitter of described audion vt6, its colelctor electrode and polar capacitor c15
Positive pole be connected；The base stage of described audion vt5 is also connected with the out pin of process chip u.
During enforcement, the amplifier p3 of this electromagnetic interference filter circuit, inductance l2, polar capacitor c12, polar capacitor c13 and
The degaussing circuit that diode d9 is formed, this degaussing circuit can be to the signal magnetic bias that drive waveforms produce in transmitting procedure and circuit
Parameter and electromagnetic wave and the electromagnetic interference that produces are suppressed；And the audion vt5 of this electromagnetic interference filter circuit, audion
The frequency adjustment circuit that vt6 adjustable resistance r25, diode d11, polar capacitor c15 and resistance r24 are formed, this frequency adjusts electricity
Road can be adjusted to the wave frequency of sampled signal, so that sampled signal wave frequency and the wave frequency of input signal is consistent, thus really
Protect the accuracy to signal processing for the present invention.
As shown in figure 3, described signal bandwidth adjustment circuit is by amplifier p4, amplifier p5, audion vt7, audion
Vt8, resistance r26, resistance r27, adjustable resistance r28, resistance r29, resistance r30, resistance r31, polar capacitor c17, polar capacitor
C18, polar capacitor c19, polar capacitor c20, polar capacitor c21, inductance l4, diode d12, diode d13, and diode
D14 forms.
During connection, the negative pole of polar capacitor c17 is connected with the positive pole of amplifier p4, positive pole and second-order low-pass filter circuit
It is connected.The p pole of diode d12 is connected with the negative pole of amplifier p4 after resistance r26, the colelctor electrode of n pole and audion vt7
It is connected.The positive pole of polar capacitor c18 is connected with the emitter stage of audion vt7, after negative pole resistance r30 with amplifier p5 just
Pole is connected.The p pole of diode d14 is grounded after being connected with the negative pole of amplifier p5, n pole after resistance r31 with amplifier p5
Outfan be connected.
Wherein, the positive pole of polar capacitor c21 is connected with the outfan of amplifier p5, the in pipe of negative pole and process chip u
Foot is connected.The negative pole of polar capacitor c19 is connected with the positive pole of amplifier p5, and positive pole is after inductance l4 with audion vt7's
Base stage is connected.One end of adjustable resistance r28 is connected with the positive pole of polar capacitor c19, the base stage of the other end and audion vt8
It is connected.
Meanwhile, the p pole of diode d13 is connected with the outfan of amplifier p4, and the emitter stage of n pole audion vt8 is connected
Connect.The positive pole of polar capacitor c20 is connected with the outfan of amplifier p4 after resistance r27, negative pole after resistance r29 with three poles
The colelctor electrode of pipe vt8 is connected.The minus earth of described polar capacitor c18；The positive pole of described polar capacitor c19 also with amplifier
The negative pole of p4 is connected；The colelctor electrode of described audion vt8 is also connected with the outfan of amplifier p5.
During operation, the present invention in order to be adjusted to the frequency bandwidth of signal, can to the low current signal in signal or
Charge signal is amplified, and makes signal more stable, therefore between the in pin of second-order low-pass filter circuit and process chip u
It is provided with signal bandwidth adjustment circuit.The polar capacitor c17 of this signal bandwidth adjustment circuit, amplifier p4, inductance l4, resistance
R26, resistance r30, diode d12 and polar capacitor c18 define an amplifying circuit, the frequency of this amplifying circuit energy earth signal
It is amplified, makes the bandwidth of frequency wider, so that sampled signal and the frequency of input signal is consistent；This signal bandwidth adjustment electricity
The filtering adjustment circuit that the amplifier p5 on road, adjustable resistance r28 and polar capacitor c21 are formed, this filtering adjustment circuit is to signal
Low current signal or charge signal be adjusted, make current signal or charge signal more steady, and to by electric charge and electricity
Signal after stream adjustment is filtered, and effectively leaches the signal medium-high frequency interference signal after adjustment, makes signal cleaner, thus
This signal bandwidth adjustment circuit can effectively be adjusted to input signal, can effectively improve the standard to signal processing for the present invention
Really property.
As described above, just can be very good to realize the present invention.
Claims (6)
1. the blowdown net monitoring device Mixed adjustment type signal processing system based on big data, mainly by process chip u, three poles
Pipe vt2, positive pole is connected with the in pin of process chip u after resistance r8, negative pole comp with process chip u after inductance l1
The polar capacitor c6 that pin is connected, one end is connected with the base stage of audion vt2, the comp of the other end and process chip u pipe
The resistance r11 that foot is connected, n pole is connected with the base stage of audion vt2, p pole b pin with process chip u after resistance r9
The diode d5 being connected, positive pole is connected with the b pin of process chip u, negative pole after adjustable resistance r10 with audion vt2
The polar capacitor c7 that is connected of base stage, be serially connected in the electricity between the emitter stage of audion vt2 and the out pin of process chip u
Magnetic disturbance filter circuit, the second-order low-pass filter circuit being connected with the vc pin of process chip u, it is serially connected in second-order low-pass filter
Signal bandwidth adjustment circuit between the in pin of circuit and process chip u, and manage with the cs pin of process chip u, g respectively
The correction of frequency errors circuit composition that foot, clk pin are connected with out pin；The grounded collector of described audion vt2；Institute
State the gnd pin ground connection of process chip u；The vc pin of described process chip u is connected with outside 12v DC source.
2. the blowdown net monitoring device Mixed adjustment type signal processing system based on big data according to claim 1,
It is characterized in that, described signal bandwidth adjustment circuit by amplifier p4, amplifier p5, audion vt7, audion vt8, negative pole with
The polar capacitor c17 that the positive pole of amplifier p4 is connected, positive pole is connected with second-order low-pass filter circuit, p pole is after resistance r26
Be connected with the negative pole of amplifier p4, diode d12, positive pole and audion that n pole is connected with the colelctor electrode of audion vt7
The emitter stage of vt7 is connected, be connected with the positive pole of amplifier p5 after negative pole resistance r30 polar capacitor c18, p pole and amplification
The diode d14 that the negative pole of device p5 is grounded after being connected, n pole is connected with the outfan of amplifier p5 after resistance r31, positive pole
Be connected with the outfan of amplifier p5, polar capacitor c21 that negative pole is connected with the in pin of process chip u, negative pole with put
The polar capacitor c19 that the positive pole of big device p5 is connected, positive pole is connected with the base stage of audion vt7 after inductance l4, one end with
The adjustable resistance r28 that the positive pole of polar capacitor c19 is connected, the other end is connected with the base stage of audion vt8, p pole and amplification
The diode d13 that the outfan of device p4 is connected, the emitter stage of n pole audion vt8 is connected, and positive pole is after resistance r27
Be connected with the outfan of amplifier p4, polar capacitor that negative pole is connected with the colelctor electrode of audion vt8 after resistance r29
C20 forms；The minus earth of described polar capacitor c18；The positive pole of described polar capacitor c19 is also connected with the negative pole of amplifier p4
Connect；The colelctor electrode of described audion vt8 is also connected with the outfan of amplifier p5.
3. the blowdown net monitoring device Mixed adjustment type signal processing system based on big data according to claim 2,
It is characterized in that, described electromagnetic interference filter circuit is connected with the positive pole of amplifier p3 after inductance l2 by amplifier p3, positive pole
Connect, polar capacitor c12 that negative pole is connected with the emitter stage of audion vt2, one end is connected with the positive pole of polar capacitor c12,
The resistance r19 of other end ground connection, p pole is connected with the positive pole of polar capacitor c12 after resistance r18, n pole and amplifier p3 defeated
Go out the diode d9 that is connected of end, positive pole is connected with the negative pole of amplifier p3, the polar capacitor c13 of minus earth, p pole with put
The diode d10 that the outfan of big device p3 is connected, n pole is connected with the negative pole of polar capacitor c13 after inductance l3, negative pole with
The polar capacitor c14 that the base stage of audion vt6 is connected, positive pole is connected with the negative pole of polar capacitor c13 after resistance r20,
The polarity electricity that negative pole is connected with the colelctor electrode of audion vt5, positive pole is connected with the outfan of amplifier p3 after resistance r21
Hold c15, the adjustable resistance that one end is connected, the other end is connected with the base stage of audion vt5 with the colelctor electrode of audion vt6
It is grounded after r25, p pole is connected with the emitter stage of audion vt5 after resistance r24, n pole is connected with the base stage of audion vt5
Diode d11, and after positive electrode resistance r22 with receive 15 positive pole be connected, negative pole after resistance r23 with diode d11
P pole be connected polar capacitor c16 composition；The grounded emitter of described audion vt6, its colelctor electrode and polar capacitor c15
Positive pole be connected；The base stage of described audion vt5 is also connected with the out pin of process chip u.
4. the blowdown net monitoring device Mixed adjustment type signal processing system based on big data according to claim 3,
It is characterized in that, described second-order low-pass filter electricity routing amplifier p1, audion vt1, field effect transistor mos, positive pole is through resistance r4
Be connected with the base stage of audion vt1 afterwards, the polar capacitor c3 of the input as second-order low-pass filter circuit for the negative pole, negative pole with
The polar capacitor c2 that the positive pole of amplifier p1 is connected, positive pole is connected with the colelctor electrode of audion vt1 after resistance r3, p pole
Be connected with the drain electrode of field effect transistor mos, diode d2, positive pole and field effect that n pole is connected with the negative pole of polar capacitor c2
The polar capacitor c1 that the grid of pipe mos is connected, negative pole is connected with the colelctor electrode of audion vt1 after resistance r2, n pole and field
The Zener diode d1 that the source electrode of effect pipe mos is connected, p pole is connected with the vc pin of process chip u, one end and voltage stabilizing two
The p pole of pole pipe d1 is connected, the resistance r1 of the other end and ground connection, and p pole is connected with the colelctor electrode of audion vt1, n pole and three poles
The diode d3 that the emitter stage of pipe vt1 is connected, p pole is connected with the negative pole of amplifier p1, n pole after resistance r5 with amplifier
The diode d4 that the outfan of p1 is connected, positive pole is connected with the negative pole of amplifier p1 after resistance r6, negative pole and amplifier
The polar capacitor c4 that the outfan of p1 is connected, and be connected with the outfan of amplifier p1 after positive electrode resistance r7, negative pole connects
The polar capacitor c5 composition on ground；The minus earth of described polar capacitor c2；The positive pole of described amplifier p1 also with polar capacitor c3
Positive pole be connected, its outfan is also connected with the emitter stage of audion vt1 and the positive pole of polar capacitor c17 respectively, its bear
Pole is grounded.
5. the blowdown net monitoring device Mixed adjustment type signal processing system based on big data according to claim 4,
It is characterized in that, described correction of frequency errors electricity routing amplifier p2, audion vt3, audion vt4, p pole and process chip u
Cs pin be connected, diode d6 that n pole is connected with the base stage of audion vt4, the g pin phase of positive pole and process chip u
Connect, the polar capacitor c10 that is connected with the emitter stage of audion vt4 of negative pole, p pole after resistance r15 with the sending out of audion vt4
The diode d8 that emitter-base bandgap grading is connected, n pole is connected with the colelctor electrode of audion vt3, negative pole is connected with the emitter stage of audion vt4
Connect, polar capacitor c11 that positive pole is connected with the colelctor electrode of audion vt3 after resistance r17, the collection of one end and audion vt3
The adjustable resistance r16 that electrode is grounded after being connected, the other end is connected with the base stage of audion vt3, p pole is with audion vt3's
The diode d7 that base stage is connected, n pole is connected with the outfan of amplifier p2 after resistance r14, after positive electrode resistance r13 with put
The polar capacitor c9 that the negative pole of big device p2 is connected, negative pole is connected with the outfan of amplifier p2, and positive pole and amplifier
The polar capacitor c8 composition that the positive pole of p2 is connected, negative pole is connected with the outfan of amplifier p2 after resistance r12；Described three
The grounded collector of pole pipe vt4；The base stage of described audion vt3 is also connected with the negative pole of amplifier p2, its emitter stage and place
The clk pin of reason chip u is connected；The positive pole of described amplifier p2 is connected with the out pin of process chip u, its outfan
Then as the outfan of correction of frequency errors circuit.
6. the blowdown net monitoring device Mixed adjustment type signal processing system based on big data according to claim 5,
It is characterized in that, described process chip u is mb40978 integrated chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610753240.8A CN106357235A (en) | 2016-08-29 | 2016-08-29 | Big data-based mixed adjustment signal processing system for sewage network monitoring devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610753240.8A CN106357235A (en) | 2016-08-29 | 2016-08-29 | Big data-based mixed adjustment signal processing system for sewage network monitoring devices |
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| CN106357235A true CN106357235A (en) | 2017-01-25 |
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| CN201610753240.8A Withdrawn CN106357235A (en) | 2016-08-29 | 2016-08-29 | Big data-based mixed adjustment signal processing system for sewage network monitoring devices |
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| Country | Link |
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2016
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Application publication date: 20170125 |