CN107623651A - A kind of intelligence community - Google Patents
A kind of intelligence community Download PDFInfo
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- CN107623651A CN107623651A CN201710520103.4A CN201710520103A CN107623651A CN 107623651 A CN107623651 A CN 107623651A CN 201710520103 A CN201710520103 A CN 201710520103A CN 107623651 A CN107623651 A CN 107623651A
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Abstract
A kind of intelligence community, the transmission of various signals is needed in intelligence community, it is modulated signal by the analog quantity of basic environment in the intelligence community of collection or digital quantity electric signal, with the first frequency modulation loop caused by produce resonant frequency be carrier wave, it is modulated to high-frequency signal, this high-frequency signal further adjusts the index of modulation through the second frequency modulation loop, produce the frequency of optimum traffic of necessary requirement, the amplitude of signal is improved through signal amplification circuit again, causes that signal transmission distance is limited, time delay so as to solve the problems, such as decay of the signal in transmittance process;In order to solve the interference of parasitic disturbances and extraneous random noise in frequency-modulating process, on the one hand suppressed by differential mode anti-jamming circuit in filter circuit, on the other hand interference is filtered out by differential mode filter circuit and common mode filtering circuit in filter circuit, so as to improve anti-interference and stability, the control terminal of intelligence community is sent by transmitter again, ensure that signal in time, accurately transmits.
Description
Technical field
The present invention relates to field of circuit technology, more particularly to a kind of intelligence community.
Background technology
With the fast development of market economy and science and technology, Urban Residents economic level also improves therewith, society
Safe precaution measure of the different colony of area to community, the intellectuality of house address, the convenience of community's life, each group in community
The convenience of interactive demand, community medicine between body and the special service of community-dwelling elder child etc. have higher want
Ask, based on this present situation, a kind of new concept intelligence community occur, be a kind of new model of innovation in social management under the new situation.Intelligence
Intelligent community refers to the integrated application for making full use of the generation information technologies such as Internet of Things, cloud computing, mobile Internet, is occupied for community
One safety of people's offer, comfortably, easily modernize, wisdom living environment, it is social based on informationization, intellectuality so as to be formed
Management and a kind of community of new management form of service.
Signal transacting is the core link of intelligence community one, on the basis of being built upon information communication due to intelligence community,
Therefore the weight that the decay in signal transduction process, the anti-interference of raising signal and stability are intelligence community development is suppressed
Want one of technical problem.
So the present invention provides a kind of new scheme to solve this problem.
The content of the invention
For the above situation, to overcome the defect of prior art, the purpose of the present invention is to provide a kind of intelligence community, tool
Have be skillfully constructed, the characteristic of human oriented design, efficiently solve the decaying of signal transmission in intelligence community, anti-interference and stably
Property difference technical problem.
Its technical scheme solved is, including signal processing circuit, it is characterised in that the signal processing circuit includes adjusting
Frequency circuit, signal amplification circuit and filter circuit, the signal of FM circuit reception signal input, are modulated the signals onto as high frequency
The amplitude of signal is improved by signal amplification circuit afterwards, is finally handled and exported by filter circuit filtering voltage regulation；
The FM circuit includes the first frequency modulation loop, LC filter circuits and the second frequency modulation loop, and the first frequency modulation loop is by inductance
The RC circuits that L1 series inductances L3 and resistance R3, electric capacity C4 are formed are formed, and produce resonant frequency, LC filter circuits are by inductance L3
Composed in parallel with electric capacity C4, filter off high frequency spurs, the second frequency modulation returns routing capacitance C4, inductance L2, varactor DC1 and forms electricity
Hold bikini resonant tank, and with the first frequency modulation circuit in series, produce the modulation frequency of necessary requirement, realize signal frequency modulation.
Preferably, the filter circuit includes differential mode anti-jamming circuit, differential mode filter circuit and common mode filtering circuit, differential mode
Anti-jamming circuit is by electric capacity C7 and voltage transformer L5 the loop shunt voltage transformer L4 being composed in series and electric capacity C8 series connection groups
Into loop form, improve the differential mode antijamming capability of signal, differential mode filter circuit by the electric capacity C7 in differential mode anti-jamming circuit,
Electric capacity C8 is formed, and filters off DM EMI, and common mode filtering circuit is made up of inductance L6, inductance L7 parallel connections, filters off common mode disturbances.
Due to the use of above technical scheme, the present invention has the following advantages that compared with prior art；
1, it is modulated signal by the analog quantity of basic environment in the intelligence community of collection or digital quantity electric signal, is returned with the first frequency modulation
It is carrier wave that resonant frequency is produced caused by road, is modulated to high-frequency signal, this high-frequency signal is further adjusted through the second frequency modulation loop
The index of modulation, the frequency of optimum traffic of necessary requirement is produced, then the amplitude of signal is improved through signal amplification circuit, so as to solve to believe
Decay number in transmittance process and the problem of cause limited signal transmission distance, time delay；
2, in order to solve the interference of parasitic disturbances and extraneous random noise in frequency-modulating process, on the one hand by differential mode in filter circuit
Anti-jamming circuit is suppressed, and on the other hand filters out interference by differential mode filter circuit and common mode filtering circuit in filter circuit, from
And anti-interference and stability are improved, then the control terminal of intelligence community is sent by transmitter, it ensure that signal in time, accurately
Transmission.
Brief description of the drawings
Fig. 1 is a kind of signal processing circuit figure of intelligence community of the present invention.
Fig. 2 is a kind of FM circuit figure of intelligence community of the present invention.
Fig. 3 is a kind of filter circuit figure of intelligence community of the present invention.
Embodiment
For the present invention foregoing and other technology contents, feature and effect, in following cooperation with reference to figures 1 through accompanying drawing 3
To in the detailed description of embodiment, can clearly present.The structure content being previously mentioned in following examples, it is with specification
Accompanying drawing is reference.
Each exemplary embodiment of the present invention is described below with reference to accompanying drawings.
Embodiment one, a kind of intelligence community, the transmission of various signals, such as base in intelligence community are needed in intelligence community
The analog quantitys such as the vision signal of plinth environment, voice signal, power signal or digital quantity electric signal are modulated signal, and every kind of signal is all
Need corresponding collector to gather, send the control terminal of intelligence community, letter by transmitter after signal processing circuit is handled
Number process circuit is the transmission of short-distance and medium-distance, therefore signal processing circuit design uses FM circuit, signal amplification circuit and filter
Wave circuit, the signal of FM circuit reception signal input, modulate the signals onto and believe to be improved after high frequency by signal amplification circuit
Number amplitude, finally handled by filter circuit filtering voltage regulation and exported to transmitter by signal output part；
The FM circuit is used for the signal for inputting a signal into end, after being modulated to high frequency, produces the best transmission frequency of necessary requirement
Rate, including the first frequency modulation loop 1, the resonant tank 3 of LC filter circuits 2 and second, the inductance L1 other end in the first resonant tank 1
Inductance L3 upper ends are connected, the upper end of the RC circuits of resistance R3 and electric capacity C4 compositions after the connection of inductance L3 lower ends is in parallel, are produced humorous
Vibration frequency is carrier wave, and the high-frequency signal after modulation has noise signal, by inductance L3 in LC filter circuits 2 and electric capacity C4 parallel connection groups
Into high frequency spurs are filtered off, a part prevents absorption from becoming magnetic strength and heat energy by inductance L3, and remaining part is switched to by electric capacity C4
OUT1 output ends, so as to obtain pure FM signal to the second frequency modulation loop 3, the second frequency modulation loop 3 is by electric capacity C4, inductance
L2, varactor DC1 form capacitance three-point type resonant tank, and varactor DC1 equivalent capacity becomes with OUT1 output ends
Change, frequency changes, you can automatically adjusts the index of modulation, realizes signal frequency modulation, so as to obtain the best transmission of necessary requirement
Frequency.
Embodiment two, on the basis of embodiment one, the filter circuit is for the parasitic disturbances in frequency-modulating process and outside
The interference of boundary's random noise, the loop shunt voltage that differential mode anti-jamming circuit 4 is composed in series by electric capacity C7 and voltage transformer L5
The loop that transformer L4 and electric capacity C8 are composed in series is formed, and improves the differential mode antijamming capability of signal, differential mode filter circuit 6 is by electricity
Hold C7, electric capacity C8 to form, for filtering off DM EMI, common mode filtering circuit 5 is made up of inductance L6, L7 parallel connection, and inductance is to the external world
Inductance value is presented in common mode between random noise and ground, most steady through voltage-regulator diode DZ1 reversal connections afterwards to the effective absorption of common mode disturbances
Output final process signal is sent to the control terminal of intelligence community by transmitter after pressure processing, improves anti-interference and stably
Property.
Embodiment three, on the basis of embodiment one or three, the signal that the FM circuit is used to input a signal into end is adjusted
High-frequency signal is made as, specifically, the analog quantity of signal input part or digital quantity electric signal couple through electric capacity C1, resistance R1 biasings add
To triode Q1 base stage, triode Q1 emitter stage connects shunt capacitance C2 one end, emitter resistance R2 one end respectively,
It is amplified, is exported by triode Q1 colelctor electrode, is high-frequency signal with producing resonant frequency modulation in the first resonant tank 1,
Change any parameter in the first resonant tank 1, can adjust resonant frequency, that is, adjust the frequency of high-frequency signal.
Example IV, on the basis of embodiment one or three, the signal amplification circuit carries out the high-frequency signal of modulation
To improve the amplitude of signal, including operational amplifier A R1, operational amplifier A R1 power end connects power supply+5V for signal amplification,
Operational amplifier A R1 ground terminal connection ground, operational amplifier A R1 in-phase input end are exported by the OUT1 of the first resonant tank 1
End provides, and operational amplifier A R1 inverting input connects resistance R5, resistance R6 respectively, and resistance R6 is feedback resistance, determines high
The multiplication factor of frequency modulation, the high-frequency modulation signal after operational amplifier A R1 output end output amplification, through potentiometer
Differential mode anti-jamming circuit is sent into after the diode balanced amplitude modulation circuit of RW1 and diode D1, variable capacitance C0 composition（4）Input
IN3 is held, is sent after the diode balanced amplitude modulation circuit that the OUT2 output ends of the first resonant tank 1 form through diode D2, electric capacity C6
Enter differential mode anti-jamming circuit（4）Input IN4.
When the present invention is specifically used, a kind of intelligence community, the transmission of various signals, such as wisdom are needed in intelligence community
The analog quantity such as the vision signal of basic environment, voice signal, power signal or digital quantity electric signal are modulated signal in community, often
Kind signal is required for corresponding collector to gather, and sends the control of intelligence community by transmitter after signal processing circuit is handled
Terminal, signal processing circuit is the transmission of short-distance and medium-distance, therefore signal processing circuit design is using FM circuit, signal amplification electricity
Road and filter circuit, the signal of FM circuit reception signal input, modulate the signals onto for after high frequency by signal amplification circuit
The amplitude of signal is improved, is finally handled by filter circuit filtering voltage regulation and is exported by signal output part to transmitter；The frequency modulation electricity
Road is used for the signal for inputting a signal into end, after being modulated to high frequency, produces the frequency of optimum traffic of necessary requirement, including the first frequency modulation
Loop 1, the resonant tank 3 of LC filter circuits 2 and second, in the first resonant tank 1 on inductance L1 other end connection inductance L3
End, the upper end of the RC circuits of resistance R3 and electric capacity C4 compositions after the connection of inductance L3 lower ends is in parallel, it is carrier wave to produce resonant frequency,
High-frequency signal after modulation has noise signal, and it is miscellaneous to compose in parallel elimination high frequency by inductance L3 in LC filter circuits 2 and electric capacity C4
Ripple, a part prevent absorption from becoming magnetic strength and heat energy by inductance L3, and remaining part switches to OUT1 output ends by electric capacity C4, from
And pure FM signal is obtained to the second frequency modulation loop 3, the second frequency modulation loop 3 is by electric capacity C4, inductance L2, varactor
DC1 forms capacitance three-point type resonant tank, and varactor DC1 equivalent capacity changes with OUT1 output ends, and frequency becomes
Change, you can automatically adjust the index of modulation, realize signal frequency modulation, so as to obtain the frequency of optimum traffic of necessary requirement.The filtering
The interference of parasitic disturbances and extraneous random noise that circuit is used in frequency-modulating process, differential mode anti-jamming circuit 4 is by electric capacity C7 and electricity
The loop that loop the shunt voltage transformer L4 and electric capacity C8 that pressure transformer L5 is composed in series are composed in series is formed, and improves signal
Differential mode antijamming capability, differential mode filter circuit 6 is made up of electric capacity C7, electric capacity C8, for filtering off DM EMI, common mode filtering circuit
5 are made up of inductance L6, L7 parallel connection, and inductance value is presented to the common mode between extraneous random noise and ground in inductance, has to common mode disturbances
Effect absorbs, and most output final process signal is sent to wisdom society by transmitter after voltage-regulator diode DZ1 reversal connections voltage stabilizing processing afterwards
The control terminal in area, improves anti-interference and stability.
Described above is to combine embodiment further description made for the present invention, it is impossible to assert the present invention
Specific implementation is limited only to this；For belonging to the present invention and for those skilled in the technology concerned, based on skill of the present invention
Under the premise of art scheme thinking, the expansion made and operating method, the replacement of data, should all fall the scope of the present invention it
It is interior.
Claims (5)
1. a kind of intelligence community, including signal processing circuit, it is characterised in that the signal processing circuit include FM circuit,
Signal amplification circuit and filter circuit, the signal of FM circuit reception signal input, modulate the signals onto for after high frequency by believing
Number amplifying circuit improves the amplitude of signal, is finally handled and exported by filter circuit filtering voltage regulation；
The FM circuit includes the first frequency modulation loop（1）, LC filter circuits（2）With the second frequency modulation loop（3）, the first frequency modulation time
Road（1）It is made up of inductance L1 series inductances L3 and resistance R3, electric capacity C4 the RC circuits formed, produces resonant frequency, LC filtering
Circuit（2）Composed in parallel by inductance L3 and electric capacity C4, filter off high frequency spurs, the second frequency modulation loop（3）By electric capacity C4, inductance L2,
Varactor DC1 form capacitance three-point type resonant tank, and with the first frequency modulation loop（1）Series connection, produces necessary requirement
Modulation frequency, realize signal frequency modulation.
2. a kind of intelligence community as claimed in claim 1, it is characterised in that the filter circuit includes differential mode anti-jamming circuit
（4）, differential mode filter circuit（6）And common mode filtering circuit（5）, differential mode anti-jamming circuit（4）By electric capacity C7 and voltage transformer L5
The loop that loop the shunt voltage transformer L4 and electric capacity C8 being composed in series are composed in series is formed, and the differential mode for improving signal is anti-interference
Ability, differential mode filter circuit（6）By differential mode anti-jamming circuit（4）Interior electric capacity C7, electric capacity C8 is formed, and filters off DM EMI, altogether
Mould filter circuit（5）It is made up of inductance L6, inductance L7 parallel connections, filters off common mode disturbances.
3. a kind of intelligence community as claimed in claim 1, it is characterised in that the FM circuit includes electric capacity C1, electric capacity C1's
One end connects the signal of signal input part, and the electric capacity C1 other end connects resistance R1 one end, triode Q1 base stage respectively, electricity
R1 other end connection power supply -10V is hindered, triode Q1 emitter stage connects electric capacity C2 one end, resistance R2 one end respectively, electricity
R1 other end connection power supply -10V is hindered, the electric capacity C2 other end connects resistance R3 one end, the first frequency modulation loop respectively（1）In
The lower end of RC circuits, triode Q1 colelctor electrode connect the resistance R3 other end, the first frequency modulation loop respectively（1）Middle inductance L1's
One end.
4. a kind of intelligence community as described in claim 1 or 3, it is characterised in that the signal amplification circuit includes operation amplifier
Device AR1, operational amplifier A R1 power end connection power supply+5V, operational amplifier A R1 ground terminal connection ground, operational amplifier
AR1 in-phase input end connects the second frequency modulation loop（3）OUT1 output ends, operational amplifier A R1 inverting input difference
Resistance R5 one end, resistance R6 one end is connected, the resistance R5 other end connects the second frequency modulation loop（3）OUT2 output ends,
Second frequency modulation loop（3）OUT2 output ends connect diode D2 negative pole, electric capacity C6 one end, diode D2 positive pole respectively
The electric capacity C6 other end, differential mode anti-jamming circuit is connected respectively（4）Input IN4, the resistance R6 other end connects fortune respectively
Calculate amplifier AR1 output end, potentiometer RW1 one end, the potentiometer RW1 other end connect respectively diode D1 positive pole,
Variable capacitance C0 one end, diode D1 negative pole connect the variable capacitance C0 other end, differential mode anti-jamming circuit respectively（4）'s
Input IN3.
A kind of 5. intelligence community as claimed in claim 2, it is characterised in that common mode filtering circuit（5）The signal of output is through voltage stabilizing
Final process signal is exported after diode DZ1 reversal connections voltage stabilizing processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710520103.4A CN107623651B (en) | 2017-06-30 | 2017-06-30 | A kind of intelligence community |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710520103.4A CN107623651B (en) | 2017-06-30 | 2017-06-30 | A kind of intelligence community |
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| Publication Number | Publication Date |
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| CN107623651A true CN107623651A (en) | 2018-01-23 |
| CN107623651B CN107623651B (en) | 2018-08-03 |
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| CN201710520103.4A Active CN107623651B (en) | 2017-06-30 | 2017-06-30 | A kind of intelligence community |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111049551A (en) * | 2019-12-31 | 2020-04-21 | 郑州航空工业管理学院 | Anti-interference transmission device of network signal |
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| CN204795596U (en) * | 2015-07-30 | 2015-11-18 | 高宇 | Broadcasting recording signal amplifier |
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| US20030224740A1 (en) * | 2002-05-31 | 2003-12-04 | Ryoichi Takano | Transmitter and semiconductor integrated circuit for communication |
| US20080036545A1 (en) * | 2006-08-10 | 2008-02-14 | Stmicroelectronics S.A. | Modulation device using frequency-shift keying |
| CN101344996A (en) * | 2007-07-10 | 2009-01-14 | 洛阳师范学院 | String music electronic auxiliary teaching system |
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| CN102932711A (en) * | 2012-10-23 | 2013-02-13 | 成都众询科技有限公司 | Wireless microphone signal transmitting circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111049551A (en) * | 2019-12-31 | 2020-04-21 | 郑州航空工业管理学院 | Anti-interference transmission device of network signal |
| CN111049551B (en) * | 2019-12-31 | 2021-04-02 | 郑州航空工业管理学院 | Anti-interference transmission device of network signal |
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| Publication number | Publication date |
|---|---|
| CN107623651B (en) | 2018-08-03 |
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