CN106254056A - Correction of frequency errors type wireless signal processing system based on Internet of Things - Google Patents
Correction of frequency errors type wireless signal processing system based on Internet of Things Download PDFInfo
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- CN106254056A CN106254056A CN201610682171.6A CN201610682171A CN106254056A CN 106254056 A CN106254056 A CN 106254056A CN 201610682171 A CN201610682171 A CN 201610682171A CN 106254056 A CN106254056 A CN 106254056A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/0079—Receiver details
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Abstract
The invention discloses a kind of correction of frequency errors type wireless signal processing system based on Internet of Things, it is characterized in that: mainly by processing chip U, audion VT4, wireless signal receiver A, polar capacitor C10, diode D6, Zener diode D5, correction of frequency errors circuit, signal wave reception filtering circuit, it is serially connected in signal wave reception filtering circuit and the audion bias amplifier processed between chip U, and the signal level regulation circuit etc. that the OUT pin that with the negative pole of polar capacitor C11 and processes chip U respectively and G pin are connected forms.Interference signal in the signal of telecommunication received can be suppressed or eliminate by the present invention, and the dutycycle of the square-wave signal of the digital signal frequency after processing chip U conversion can also be adjusted by the present invention, the level making the digital signal of output keeps stable, thus improves the present invention accuracy to signal processing.
Description
Technical field
The present invention relates to automation field, specifically refer to a kind of correction of frequency errors type wireless signal based on Internet of Things
Processing system.
Background technology
The application of modern agricultural technology brings huge economy, society and ecological benefits for society.Along with society
Development, the consciousness of people's water saving gradually strengthens, and in order to reach the purpose of water saving, people generally use agricultural Internet of Things to come farming
The irrigation of thing is managed, to improve the effect of irrigation water efficiency and irrigation；The many employings of people at present are by humidity sensor, nothing
Line signal acquiring system, wireless signal processing system, wireless control system, video monitoring system and automatic water sprinkler systme composition
Agricultural Internet of Things；Wherein the wireless control system in agricultural Internet of Things is then the number by being transmitted wireless signal processing system
Word information controls automatic water sprinkler systme, and therefore, can automatic water sprinkler systme irrigate then for crops accurately accurately
Depend on that wireless signal processing system is the most accurate to signal processing.
But, the wireless signal processing system of existing agricultural Internet of Things there is also signal in terms of the process of the docking collection of letters number
The process of the low problem of accuracy processed, the i.e. humidity information that humidity sensor is transmitted by its wireless signal processing system is accurate
Really property is relatively low, causes the wireless control system in agricultural Internet of Things cannot control automatic water sprinkler systme accurately and carries out crops
Irrigate, the serious growth that have impact on crops.
Therefore it provides a kind of agriculture Internet of Things wireless signal processing system that can accurately process signal is to work as
It is engaged in anxious.
Summary of the invention
It is an object of the invention to the process in the docking collection of letters number of gram wireless signal processing system of existing agricultural Internet of Things
Aspect there is also the defect that the accuracy of signal processing is low, it is provided that a kind of correction of frequency errors type wireless signal based on Internet of Things
Processing system.
The purpose of the present invention is by following technical proposals reality: at correction of frequency errors type wireless signal based on Internet of Things
Reason system, mainly by processing chip U, audion VT4, wireless signal receiver A, positive pole is connected with the emitter stage of audion VT4
Connect, negative pole after resistance R16 with the polar capacitor C10 that is connected of COMP pin processing chip U, one end with process chip U's
After COMP pin is connected, the other end is connected with the GND pin of process chip U, resistance R18, the P pole of ground connection is after resistance R17
Be connected with the base stage of audion VT4, N pole and the diode D6 that is connected of OUT pin processing chip U, positive pole is through inductance L2
The polarity electricity that colelctor electrode with audion VT4 is connected afterwards, negative pole is connected with the CLK pin processing chip U after resistance R19
Hold C11, N pole and the Zener diode D5 that VC pin is connected, the other end is connected processing chip U with external power source VCC, with
The signal wave reception filtering circuit that the signal output part of wireless signal receiver A is connected, be serially connected in signal wave reception filtering circuit with
Process the audion bias amplifier between chip U, respectively with negative pole and the OUT pin of process chip U of polar capacitor C11
The signal level regulation circuit being connected, and it is serially connected in the frequency processed between the G pin of chip U and signal level regulation circuit
Rate error correction circuit forms；Described audion bias amplifier the most respectively with signal wave reception filtering circuit and Zener diode
The P pole of D5 is connected；The described B pin of process chip U is connected with the negative pole of polar capacitor C10.
Further, described correction of frequency errors electricity routing amplifier P3, amplifier P4, audion VT6, audion VT7,
Positive pole colelctor electrode with audion VT7 after inductance L3 is connected, negative pole positive pole with amplifier P3 after resistance R32 is connected
Polar capacitor C15, P pole colelctor electrode with audion VT7 after resistance R27 be connected, the emitter stage of N pole and audion VT6
The diode D9 being connected, positive pole colelctor electrode with audion VT6 after resistance R28 is connected, the polar capacitor of minus earth
C19, P pole emitter stage with audion VT7 after adjustable resistance R31 is connected, N pole is connected with the negative pole of polar capacitor C19
Diode D10, one end is connected with the colelctor electrode of audion VT6, the other end is connected with the negative pole of polar capacitor C19 can
Adjust resistance R29, positive pole base stage with audion VT7 after resistance R30 is connected, negative pole after resistance R33 with amplifier P3's
The polar capacitor C17 that outfan is connected, positive pole is connected with the adjustable end of adjustable resistance R31, negative pole and amplifier P3 just
The polar capacitor C16 that pole is connected, positive pole is connected with the base stage of audion VT6, negative pole after resistance R34 with amplifier P4's
Polar capacitor C18, the N pole that outfan is connected is connected with the outfan of amplifier P4, P pole after resistance R35 with amplifier
Diode D11, the N pole that the positive pole of P4 is connected is connected with the negative pole of amplifier P3, P pole after resistance R36 with amplifier P4
The diode D12 that is connected of positive pole, positive pole is connected with the outfan of amplifier P4, negative pole regulates circuit phase with signal level
The polar capacitor C20 connected, and one end is connected with the negative pole of amplifier 4, the resistance R37 of other end ground connection composition；Described
The positive pole of polar capacitor C15 is connected with the G pin processing chip U.
Described signal wave reception filtering circuit is connected with the base stage of audion VT2 by audion VT1, audion VT2, positive pole
Connect, polar capacitor C3 that negative pole is connected with the signal output part of wireless receiver A, positive pole after resistance R3 with polar capacitor C3
Negative pole be connected, polar capacitor C4, the N pole of minus earth emitter stage with audion VT2 after resistance R6 is connected, P pole
The diode D2 that negative pole with polar capacitor C4 is connected after resistance R5, one end is connected with the base stage of audion VT2, another
The adjustable resistance R4 that is connected with the P pole of diode D2 of end, negative pole is connected with the base stage of audion VT2, positive pole is through resistance R2
Polar capacitor C2, the P pole that colelctor electrode with audion VT2 is connected afterwards is connected with the base stage of audion VT1, N pole and three poles
The diode D1 that the colelctor electrode of pipe VT2 is connected, and positive pole emitter stage with audion VT1 after resistance R1 be connected, negative
The polar capacitor C1 composition of pole ground connection；The colelctor electrode of described audion VT1 is collectively forming signal with the colelctor electrode of audion VT2 and connects
Receive filter circuit to be outfan and be connected with audion bias amplifier.
Described audion bias amplifier by amplifier P1, audion VT3, N pole after resistance R9 with audion VT3's
The diode D3 that base stage is connected, P pole is connected with the colelctor electrode of audion VT2, positive pole is connected with the P pole of diode D3,
The polar capacitor C5 that negative pole negative pole with amplifier P1 after resistance R7 is connected, positive pole negative with amplifier P1 after resistance R8
The polar capacitor C6 that pole is connected, negative pole is connected with the outfan of amplifier P1, negative pole after resistance R10 with amplifier P1's
Outfan is connected, positive pole colelctor electrode with audion VT3 after resistance R11 is connected polar capacitor C8, P pole and amplifier
The diode D4 that the positive pole of P1 is connected, N pole colelctor electrode with audion VT3 after resistance R12 is connected, negative pole and diode
The polar capacitor that the P pole of D4 is connected, positive pole is sequentially connected through inductance L1 colelctor electrode with audion VT3 after resistance R13
C7, one end is connected with the junction point of inductance L1 with resistance R13, the resistance R14 of other end ground connection, and positive pole and amplifier P1
The polar capacitor C9 that outfan is connected, negative pole is connected with IN pin after resistance R15 composition；Described amplifier P1 is just
Pole is also connected with the N pole of diode D3, its minus earth；The outfan of described amplifier P1 also with the transmitting of audion VT3
Pole is connected；The junction point of described inductance L1 and resistance R13 is also connected with the P pole of Zener diode D5.
Described signal level regulation circuit is by field effect transistor MOS, amplifier P2, audion VT5, positive pole and field effect transistor
The drain electrode of MOS is connected, negative pole colelctor electrode with audion VT5 after resistance R22 is connected polar capacitor C13, P pole and pole
The negative pole of property electric capacity C13 be connected after the diode D7 that is connected with the negative pole of amplifier P2 of ground connection, N pole, one end and audion
The adjustable resistance R23 that the colelctor electrode of VT5 is connected, the other end is connected with the negative pole of amplifier P2, positive pole after resistance R24 with
Polar capacitor C14, the P pole that the negative pole of amplifier P2 is connected, negative pole outfan with amplifier P2 after resistance R25 is connected
The diode that after being connected with the negative pole of amplifier P2, ground connection, N pole negative pole with polar capacitor C14 after resistance R26 is connected
D8, and positive pole grid with field effect transistor MOS after resistance R20 is connected, negative pole after resistance R221 with amplifier P2's
The polar capacitor C12 composition that outfan is connected；The source electrode of described field effect transistor MOS is connected with the negative pole of polar capacitor C11；
The base stage of described audion VT5 is connected with the OUT pin processing chip U, its emitter stage is connected with the positive pole of amplifier P2；
The positive pole of described polar capacitor C12 also negative pole with polar capacitor C20 is connected；The outfan of described amplifier P2 is as signal
The outfan of level adjustment circuit.
For the practical effect of the present invention, described process chip U the most preferentially have employed the integrated chip of MB40978 and comes real
Existing.
The present invention compared with prior art has the following advantages and beneficial effect:
(1) the interference signal in the signal of telecommunication received can be suppressed or eliminate by the present invention, and the present invention can also be right
The dutycycle of the square-wave signal processing the digital signal frequency after chip U conversion is adjusted, and makes the digital signal of output
Level keeps stable, thus improves the present invention and the accuracy of signal processing makes the wireless control system energy in agricultural Internet of Things
Control automatic water sprinkler systme accurately crops are irrigated.
(2) phase place planted in ripple or the frequency error of the digital signal of output after processing chip U conversion can be entered by the present invention
Row correction, and the harmonic wave left in digital signal can be eliminated or suppress, make the bandwidth of digital signal keep stable, thus
Improve the present invention accuracy to signal processing.
(3) amplitude of the signal of telecommunication can be adjusted by the present invention, and can suppress common-mode signal, ensures that this
The invention accuracy to signal processing.
(4) the process chip U of the present invention the most preferentially have employed the integrated chip of MB40978 and realizes, this chip and external electrical
Sub-element combines, and can effectively load the interference of external electromagnetic ripple signal, thus improve the present invention standard to signal processing
Really property and reliability.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention.
Fig. 2 is the electrical block diagram of the correction of frequency errors circuit of the present invention.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to
This.
Embodiment
As it is shown in figure 1, the present invention is mainly by processing chip U, audion VT4, wireless signal receiver A, resistance R16, electricity
Resistance R17, resistance R18, resistance R19, inductance L2, polar capacitor C10, polar capacitor C11, Zener diode D5, diode D6, frequently
Rate error correction circuit, signal wave reception filtering circuit, audion bias amplifier, and signal level regulation circuit composition.
During connection, the positive pole of polar capacitor C10 is connected with the emitter stage of audion VT4, negative pole after resistance R16 with place
The COMP pin of reason chip U is connected.One end of resistance R18 is connected with the COMP pin processing chip U, the other end and process
The GND pin of chip U be connected after ground connection.The P pole of diode D6 base stage with audion VT4 after resistance R17 is connected, N
Pole is connected with the OUT pin processing chip U.The positive pole of polar capacitor C11 after inductance L2 with the colelctor electrode phase of audion VT4
Connecting, negative pole is connected with the CLK pin processing chip U after resistance R19.
Meanwhile, the N pole of Zener diode D5 is connected with the VC pin processing chip U, the other end and external power source VCC phase
Connect.Signal wave reception filtering circuit is connected with the signal output part of wireless signal receiver A.Audion bias amplifier string
It is connected on signal wave reception filtering circuit and processes between chip U.Signal level regulation circuit respectively with the negative pole of polar capacitor C11 and
The OUT pin processing chip U is connected.Correction of frequency errors circuit is serially connected in the G pin processing chip U and regulates with signal level
Between circuit.
Described audion bias amplifier P with signal wave reception filtering circuit and Zener diode D5 the most respectively is extremely connected
Connect；The described B pin of process chip U is connected with the negative pole of polar capacitor C10.During enforcement, the VC of the process chip U of the present invention
Pin is connected with outside 12V DC voltage.For the practical effect of the present invention, described process chip U the most preferentially adopts
Realize with the integrated chip of MB40978.Wherein, audion VT4, polar capacitor C10, diode D6, resistance R16 and resistance
The demagnetizer that R17 is formed, this demagnetizer can eliminate or suppress the interference to process chip U of the electromagnetic wave in the external world, make process chip U
The signal of telecommunication can accurately be carried out conversion process, effectively raise the accuracy to signal processing of the present invention.
Meanwhile, the outfan of its level adjustment circuit as the present invention outfan and with agricultural Internet of Things controlled in wireless
The input of the controller of system is connected, and this wireless control system is then that the digital signal transmitted according to the present invention controls
The soil of crops is irrigated by automatic water sprinkler systme, and therefore the present invention improves the accuracy to signal processing, i.e. improves
The accuracy that crops are irrigated by agriculture Internet of Things.
Further, described signal wave reception filtering circuit is by audion VT1, audion VT2, resistance R1, resistance R2, resistance
R3, adjustable resistance R4, resistance R5, resistance R6, polar capacitor C1, polar capacitor C2, polar capacitor C3, polar capacitor C4, two poles
Pipe D1, and diode D2 composition.
During connection, the positive pole of polar capacitor C3 is connected with the base stage of audion VT2, negative pole and the letter of wireless receiver A
Number outfan is connected.The positive pole of polar capacitor C4 negative pole with polar capacitor C3 after resistance R3 is connected, minus earth.Two
The N pole of pole pipe D2 emitter stage with audion VT2 after resistance R6 is connected, P pole negative with polar capacitor C4 after resistance R5
Pole is connected.One end of adjustable resistance R4 is connected with the base stage of audion VT2, and the other end is connected with the P pole of diode D2.
Meanwhile, the negative pole of polar capacitor C2 is connected with the base stage of audion VT2, positive pole after resistance R2 with audion
The colelctor electrode of VT2 is connected.The P pole of diode D1 is connected with the base stage of audion VT1, N pole and the colelctor electrode of audion VT2
It is connected.The positive pole of polar capacitor C1 emitter stage with audion VT1 after resistance R1 is connected, minus earth.Described three poles
It is outfan inclined with audion that the colelctor electrode of pipe VT1 and the colelctor electrode of audion VT2 are collectively forming signal wave reception filtering circuit
Put amplifying circuit to be connected.
During enforcement, the signal of telecommunication that wireless signal receiver A can be transmitted by this signal wave reception filtering circuit filters, i.e.
Forming multi-stage filter by polar capacitor C3 and polar capacitor C2 and polar capacitor C4, this multi-stage filter is in the signal of telecommunication
Interference signal carry out filtration repeatedly, meanwhile, by the resistance of adjustable resistance R4 is adjusted, make the low frequency in the signal of telecommunication
Signal cannot pass through, i.e. garbage signal is prevented from；Reference signal then can be passed through smoothly, thus the mistake of the collection of letters number that achieves a butt joint
Filter, it is ensured that the present invention accuracy to signal processing.
Further, described audion bias amplifier by amplifier P1, audion VT3, resistance R7, resistance R8,
Resistance R9, resistance R10, resistance R11, resistance R12, resistance R13, resistance R14, resistance R15, polar capacitor C5, polar capacitor C6,
Polar capacitor C7, polar capacitor C8, polar capacitor C9, diode D3, and diode D4 form.
During connection, the N pole of diode D3 base stage with audion VT3 after resistance R9 is connected, P pole and audion VT2
Colelctor electrode be connected.The positive pole of polar capacitor C5 is connected with the P pole of diode D3, negative pole after resistance R7 with amplifier P1
Negative pole be connected.The positive pole of polar capacitor C6 negative pole with amplifier P1 after resistance R8 is connected, negative pole and amplifier P1
Outfan be connected.The negative pole of polar capacitor C8 outfan with amplifier P1 after resistance R10 is connected, and positive pole is through resistance
After R11, the colelctor electrode with audion VT3 is connected.
Wherein, the P pole of diode D4 is connected with the positive pole of amplifier P1, N pole after resistance R12 with audion VT3's
Colelctor electrode is connected.The negative pole of polar capacitor C7 is connected with the P pole of diode D4, and positive pole is sequentially through inductance L1 and resistance R13
Colelctor electrode with audion VT3 is connected afterwards.One end of resistance R14 is connected with the junction point of inductance L1 with resistance R13, another
End ground connection.The positive pole of polar capacitor C9 is connected with the outfan of amplifier P1, and negative pole is connected with IN pin after resistance R15
Connect.
The positive pole of described amplifier P1 is also connected with the N pole of diode D3, its minus earth；Described amplifier P1's is defeated
Go out the end emitter stage also with audion VT3 to be connected；The junction point of described inductance L1 and resistance R13 is also with Zener diode D5's
P pole is connected.This audion bias amplifier is by amplifier P1 and audion VT3 and above-mentioned other electron component shape
The amplifier become, and the amplitude of the signal of telecommunication can be adjusted by this amplifier, and common-mode signal can be suppressed, thus really
Protect the present invention accuracy to signal processing.
Yet further, described signal level regulation circuit is by field effect transistor MOS, amplifier P2, audion VT5, resistance
R20, resistance R21, resistance R22, adjustable resistance R23, resistance R24, resistance R25, resistance R26, polar capacitor C12, polar capacitor
C13, polar capacitor C14, diode D7, and diode D8 form.
During connection, the positive pole of polar capacitor C13 is connected with the drain electrode of field effect transistor MOS, negative pole after resistance R22 with three
The colelctor electrode of pole pipe VT5 is connected.The P pole of diode D7 be connected with the negative pole of polar capacitor C13 after ground connection, N pole and amplification
The negative pole of device P2 is connected.One end of adjustable resistance R23 is connected with the colelctor electrode of audion VT5, the other end and amplifier P2
Negative pole be connected.
Meanwhile, the positive pole of polar capacitor C14 negative pole with amplifier P2 after resistance R24 is connected, and negative pole is through resistance R25
Outfan with amplifier P2 is connected afterwards.The P pole of diode D8 be connected with the negative pole of amplifier P2 after ground connection, N pole is through electricity
It is connected with the negative pole of polar capacitor C14 after resistance R26.The positive pole of polar capacitor C12 after resistance R20 with field effect transistor MOS
Grid is connected, and negative pole outfan with amplifier P2 after resistance R221 is connected.
The source electrode of described field effect transistor MOS is connected with the negative pole of polar capacitor C11；The base stage of described audion VT5 with
The OUT pin processing chip U is connected, and its emitter stage is connected with the positive pole of amplifier P2；The positive pole of described polar capacitor C12
The also negative pole with polar capacitor C20 is connected；The outfan of described amplifier P2 is as the outfan of signal level regulation circuit.
During enforcement, the square wave of the digital signal frequency after processing chip U conversion can be believed by this signal level regulation circuit
Number dutycycle be adjusted, make the level of the digital signal of output keep stable, thus improve the present invention to signal processing
Accuracy.Meanwhile, the outfan of its level adjustment circuit as the present invention outfan and with agricultural Internet of Things wireless controlled
The input of the controller of system processed is connected, and this wireless control system is then that the digital signal transmitted according to the present invention is controlled
The soil of crops is irrigated by automatic water sprinkler systme processed, and therefore the present invention improves the accuracy to signal processing, i.e. carries
The accuracy that crops are irrigated by high agriculture Internet of Things.
As in figure 2 it is shown, described correction of frequency errors electricity routing amplifier P3, amplifier P4, audion VT6, audion
VT7, resistance R27, resistance R28, adjustable resistance R29, resistance R30, adjustable resistance R31, resistance R32, resistance R33, resistance R34,
Resistance R35, resistance R36, resistance R37, polar capacitor C15, polar capacitor C16, polar capacitor C17, polar capacitor C18, polarity
Electric capacity C19, polar capacitor C20, diode D9, diode D10, diode D11, diode D12, and inductance L3 form.
During connection, the positive pole of polar capacitor C15 colelctor electrode with audion VT7 after inductance L3 is connected, and negative pole is through electricity
It is connected with the positive pole of amplifier P3 after resistance R32.The P pole of diode D9 colelctor electrode with audion VT7 after resistance R27 is connected
Connecing, N pole is connected with the emitter stage of audion VT6.The positive pole of polar capacitor C19 after resistance R28 with the current collection of audion VT6
Pole is connected, minus earth.The P pole of diode D10 emitter stage with audion VT7 after adjustable resistance R31 is connected, N pole
It is connected with the negative pole of polar capacitor C19.
Wherein, one end of adjustable resistance R29 is connected with the colelctor electrode of audion VT6, and the other end is with polar capacitor C19's
Negative pole is connected.The positive pole of polar capacitor C17 base stage with audion VT7 after resistance R30 is connected, and negative pole is through resistance R33
Outfan with amplifier P3 is connected afterwards.The positive pole of polar capacitor C16 is connected with the adjustable end of adjustable resistance R31, negative pole
It is connected with the positive pole of amplifier P3.The positive pole of polar capacitor C18 is connected with the base stage of audion VT6, and negative pole is through resistance R34
Outfan with amplifier P4 is connected afterwards.
Meanwhile, the N pole of diode D11 is connected with the outfan of amplifier P4, P pole after resistance R35 with amplifier P4
Positive pole be connected.The N pole of diode D12 is connected with the negative pole of amplifier P3, P pole after resistance R36 with amplifier P4's
Positive pole is connected.The positive pole of polar capacitor C20 is connected with the outfan of amplifier P4, and negative pole regulates circuit phase with signal level
Connect.One end of resistance R37 is connected with the negative pole of amplifier 4, other end ground connection.The positive pole of described polar capacitor C15 and place
The G pin of reason chip U is connected.
During operation, the audion VT6 of this correction of frequency errors circuit, polar capacitor C18, polar capacitor C19, polar capacitor
The annular electro mean longitude of the digital signal of the output of the main circuit that C18, resistance R27, resistance R34, inductance L3 and diode D9 are formed
After adjustable resistance R29 dividing potential drop compared with the level of reference signal, error amount be input to by polar capacitor C15, audion VT7,
The signal detector that adjustable resistance R31, diode D10, amplifier P3 and polar capacitor C17 are formed, through signal detector
Handling averagely, amplify, compare after, then through amplifier P4, diode D12, diode D11, resistance R35, resistance R36 and
The signal level comparator of resistance R37 composition achieves the power factor holding one of input signal power factor and sampled signal
Cause, even if the power factor of digital signal is close to the power factor of reference signal, thus reach the numeral processing chip U output
The purpose that the power factor error of the frequency of signal frequency and input signal is corrected, ensure that the present invention is to signal at
The accuracy of reason.
As it has been described above, just can well realize the present invention.
Claims (6)
1. correction of frequency errors type wireless signal processing system based on Internet of Things, it is characterised in that: mainly by processing chip U,
Audion VT4, wireless signal receiver A, positive pole is connected with the emitter stage of audion VT4, negative pole after resistance R16 with process
The polar capacitor C10 that the COMP pin of chip U is connected, one end is connected with the COMP pin processing chip U, the other end and place
The GND pin of reason chip U be connected after resistance R18, the P pole of ground connection base stage with audion VT4 after resistance R17 be connected, N
Pole and the diode D6 that is connected of OUT pin processing chip U, positive pole colelctor electrode with audion VT4 after inductance L2 is connected
Connect, negative pole after resistance R19 with polar capacitor C11, the N pole that is connected of CLK pin processing chip U and the VC processing chip U
The Zener diode D5 that pin is connected, the other end is connected with external power source VCC, defeated with the signal of wireless signal receiver A
Go out the signal wave reception filtering circuit that end is connected, be serially connected in signal wave reception filtering circuit and the audion processed between chip U is inclined
Put amplifying circuit, the signal level regulation electricity being connected respectively with the negative pole of polar capacitor C11 and the OUT pin of process chip U
Road, and it is serially connected in the correction of frequency errors circuit composition processed between the G pin of chip U and signal level regulation circuit；Institute
State audion bias amplifier to be connected with the P pole of signal wave reception filtering circuit and Zener diode D5 the most respectively；Described place
The B pin of reason chip U is connected with the negative pole of polar capacitor C10.
Correction of frequency errors type wireless signal processing system based on Internet of Things the most according to claim 1, its feature exists
In: described correction of frequency errors electricity routing amplifier P3, amplifier P4, audion VT6, audion VT7, positive pole is after inductance L3
Be connected with the colelctor electrode of audion VT7, polar capacitor C15 that negative pole positive pole with amplifier P3 after resistance R32 is connected,
P pole diode that colelctor electrode is connected, N pole is connected with the emitter stage of audion VT6 with audion VT7 after resistance R27
D9, positive pole colelctor electrode with audion VT6 after resistance R28 is connected, polar capacitor C19, the P pole of minus earth is through adjustable electric
Be connected with the emitter stage of audion VT7 after resistance R31, diode D10 that N pole is connected with the negative pole of polar capacitor C19, one end
Be connected with the colelctor electrode of audion VT6, adjustable resistance R29 that the other end is connected with the negative pole of polar capacitor C19, positive pole warp
The pole that after resistance R30, the base stage with audion VT7 is connected, negative pole outfan with amplifier P3 after resistance R33 is connected
Property electric capacity C17, positive pole is connected with the adjustable end of adjustable resistance R31, negative pole is connected with the positive pole of amplifier P3 polarity electricity
Hold C16, the pole that positive pole is connected, negative pole outfan with amplifier P4 after resistance R34 is connected with the base stage of audion VT6
Property electric capacity C18, N pole is connected with the outfan of amplifier P4, P pole positive pole with amplifier P4 after resistance R35 is connected
Diode D11, N pole is connected with the negative pole of amplifier P3, P pole positive pole with amplifier P4 after resistance R36 is connected two
Pole pipe D12, the polar capacitor that positive pole is connected with the outfan of amplifier P4, negative pole is connected with signal level regulation circuit
C20, and one end is connected with the negative pole of amplifier 4, the resistance R37 of other end ground connection composition；Described polar capacitor C15 is just
Pole is connected with the G pin processing chip U.
Correction of frequency errors type wireless signal processing system based on Internet of Things the most according to claim 2, its feature exists
In: described signal wave reception filtering circuit is by audion VT1, audion VT2, and positive pole is connected with the base stage of audion VT2, negative pole
The polar capacitor C3 being connected with the signal output part of wireless receiver A, positive pole after resistance R3 with the negative pole of polar capacitor C3
Be connected, polar capacitor C4, the N pole of minus earth emitter stage with audion VT2 after resistance R6 is connected, P pole is through resistance
The diode D2 that after R5, negative pole with polar capacitor C4 is connected, one end is connected with the base stage of audion VT2, the other end and two
The adjustable resistance R4 that the P pole of pole pipe D2 is connected, negative pole is connected with the base stage of audion VT2, positive pole after resistance R2 with three
Polar capacitor C2, the P pole that the colelctor electrode of pole pipe VT2 is connected is connected with the base stage of audion VT1, N pole and audion VT2
The diode D1 that colelctor electrode is connected, and positive pole emitter stage with audion VT1 after resistance R1 is connected, minus earth
Polar capacitor C1 forms；The colelctor electrode of described audion VT1 and the colelctor electrode of audion VT2 are collectively forming signal and accept filter electricity
Road is outfan and is connected with audion bias amplifier.
Correction of frequency errors type wireless signal processing system based on Internet of Things the most according to claim 3, its feature exists
In: described audion bias amplifier by amplifier P1, audion VT3, N pole after resistance R9 with the base stage of audion VT3
Be connected, diode D3 that P pole is connected with the colelctor electrode of audion VT2, positive pole is connected with the P pole of diode D3, negative pole
The polar capacitor C5 that negative pole with amplifier P1 is connected after resistance R7, positive pole after resistance R8 with the negative pole phase of amplifier P1
Connect, the polar capacitor C6 that is connected with the outfan of amplifier P1 of negative pole, negative pole after resistance R10 with the output of amplifier P1
Polar capacitor C8, the P pole that end is connected, positive pole colelctor electrode with audion VT3 after resistance R11 is connected is with amplifier P1's
The diode D4 that positive pole is connected, N pole colelctor electrode with audion VT3 after resistance R12 is connected, negative pole is with diode D4's
The polar capacitor C7 that P pole is connected, positive pole is sequentially connected through inductance L1 colelctor electrode with audion VT3 after resistance R13, one
End is connected with the junction point of inductance L1 with resistance R13, the resistance R14 of other end ground connection, and positive pole and amplifier P1's is defeated
Go out the polar capacitor C9 composition that end is connected, negative pole is connected after resistance R15 with IN pin；The positive pole of described amplifier P1 is also
Be connected with the N pole of diode D3, its minus earth；The outfan of described amplifier P1 also with the emitter stage phase of audion VT3
Connect；The junction point of described inductance L1 and resistance R13 is also connected with the P pole of Zener diode D5.
Correction of frequency errors type wireless signal processing system based on Internet of Things the most according to claim 4, its feature exists
In: described signal level regulation circuit is by the leakage of field effect transistor MOS, amplifier P2, audion VT5, positive pole and field effect transistor MOS
Pole is connected, negative pole colelctor electrode with audion VT5 after resistance R22 is connected polar capacitor C13, P pole and polar capacitor
The negative pole of C13 be connected after the diode D7 that is connected with the negative pole of amplifier P2 of ground connection, N pole, the collection of one end and audion VT5
The adjustable resistance R23 that electrode is connected, the other end is connected with the negative pole of amplifier P2, positive pole after resistance R24 with amplifier
The negative pole of P2 is connected, negative pole outfan with amplifier P2 after resistance R25 is connected polar capacitor C14, P pole and amplification
The negative pole of device P2 be connected after the diode D8 that is connected of ground connection, N pole negative pole with polar capacitor C14 after resistance R26, and
Positive pole grid with field effect transistor MOS after resistance R20 is connected, negative pole after resistance R221 with the outfan phase of amplifier P2
The polar capacitor C12 composition connected；The source electrode of described field effect transistor MOS is connected with the negative pole of polar capacitor C11；Described three poles
The base stage of pipe VT5 is connected with the OUT pin processing chip U, its emitter stage is connected with the positive pole of amplifier P2；Described polarity
The positive pole of electric capacity C12 also negative pole with polar capacitor C20 is connected；The outfan of described amplifier P2 regulates as signal level
The outfan of circuit.
Correction of frequency errors type wireless signal processing system based on Internet of Things the most according to claim 5, its feature exists
In: described process chip U is the integrated chip of MB40897.
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| CN201610682171.6A CN106254056A (en) | 2016-08-17 | 2016-08-17 | Correction of frequency errors type wireless signal processing system based on Internet of Things |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106713514A (en) * | 2017-03-24 | 2017-05-24 | 成都云材智慧数据科技有限公司 | Network control system based on big data technology |
| CN110266407A (en) * | 2019-06-27 | 2019-09-20 | 郑州工程技术学院 | A kind of data security protecting system based on cloud computing |
-
2016
- 2016-08-17 CN CN201610682171.6A patent/CN106254056A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106713514A (en) * | 2017-03-24 | 2017-05-24 | 成都云材智慧数据科技有限公司 | Network control system based on big data technology |
| CN106713514B (en) * | 2017-03-24 | 2023-07-25 | 成都大超科技有限公司 | Network control system based on big data technology |
| CN110266407A (en) * | 2019-06-27 | 2019-09-20 | 郑州工程技术学院 | A kind of data security protecting system based on cloud computing |
| CN110266407B (en) * | 2019-06-27 | 2021-01-15 | 郑州工程技术学院 | Data security protection system based on cloud computing |
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Application publication date: 20161221 |