CN208547372U - A kind of large-scale digital venue environment detector - Google Patents
A kind of large-scale digital venue environment detector Download PDFInfo
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- CN208547372U CN208547372U CN201821381614.9U CN201821381614U CN208547372U CN 208547372 U CN208547372 U CN 208547372U CN 201821381614 U CN201821381614 U CN 201821381614U CN 208547372 U CN208547372 U CN 208547372U
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Abstract
A kind of large-scale digital venue environment detector, including signal acquisition circuit, feed back comparison circuit and voltage-stabilizing output circuit, the signal acquisition circuit receives the signal that large-scale digital venue environment detector controlling terminal receives signal signal transmission passage input terminal, with inductance L1 and capacitor C1, capacitor C2 forms lc circuit filtering, and devise diode D1, the clamp circuit of diode D2 composition is by signal clamper in 0-+5V, after the signal that the feedback comparison circuit uses transport and placing device AR1 to export with phase amplified signal Acquisition Circuit, all the way through transport and placing device AR2 in input comparator AR3 non-inverting input terminal after mutually amplifying, after the attenuator circuit decaying that two tunnels are formed through variable resistance R7 and resistance R4 in input comparator AR3 inverting input terminal, the last voltage-stabilizing output circuit receives feedback ratio The stability of signal is improved on the basis of improving the signal delivery rate of large-scale digital venue environment detector controlling terminal reception signal signal transmission passage input terminal compared with circuit output signal.
Description
Technical field
The utility model relates to technical field of environmental detection, more particularly to a kind of large-scale digital venue environment detector.
Background technique
Currently, the arrival of science and technology brings huge variation to people's lives, some of traditional libraries are also counted
Word venue is replaced, and the arrival in large-scale number shop also implies higher requirement, makes comfortable good living environment for people,
However the signal needs that large-scale digital venue environment detector controlling terminal receives signal signal transmission passage input terminal are very strong
Anti-interference, and can stable transmission.
So the utility model provides a kind of new scheme to solve the problems, such as this.
Summary of the invention
For above situation, for the defect for overcoming the prior art, the utility model is designed to provide a kind of large-scale number
Word Venues Environment detector, simple, human oriented design the characteristic with structure are improving large-scale digital venue environment detector control
On the basis of the signal delivery rate of terminal received signals processed signal transmission passage input terminal, the stability of signal is improved.
Its technical solution solved is a kind of large-scale digital venue environment detector, including signal acquisition circuit, feedback ratio
Compared with circuit and voltage-stabilizing output circuit, the signal acquisition circuit receives large-scale digital venue environment detector controlling terminal and receives letter
Number with the signal of signal transmission passage input terminal, with inductance L1 and capacitor C1, capacitor C2 composition lc circuit filtering, and devise
By signal clamper in 0-+5V, the feedback comparison circuit uses the clamp circuit that diode D1, diode D2 common cathode form
After the signal that transport and placing device AR1 is exported with phase amplified signal Acquisition Circuit, all the way through transport and placing device AR2 with input comparator after mutually amplifying
In AR3 non-inverting input terminal, input comparator AR3 reverse phase after the attenuator circuit decaying that two tunnels are formed through variable resistance R7 and resistance R4
In input terminal, wherein triode Q1 feeds back the output signal of transport and placing device AR2, adjusts the output signal current potential of transport and placing device AR2, three poles
Pipe Q2 detects the signal after attenuator circuit, abnormal signal is released completely to greatly, the last voltage-stabilizing output circuit receives anti-
Comparison circuit output signal is presented, is exported after the voltage regulator circuit pressure stabilizing formed with triode Q3 and voltage-stabiliser tube D7, that is to say input
Large-scale number venue environment detector controlling terminal receives in signal signal transmission passage；
The feedback comparison circuit includes transport and placing device AR1, the anti-phase input terminating resistor R2 of transport and placing device AR1, resistance R3
One end, the other end ground connection of resistance R2, the output end of another termination transport and placing device AR1, one end of resistance R4 and the amplifier of resistance R3
The non-inverting input terminal of device AR2, the emitter of the anti-phase input termination triode Q1 of transport and placing device AR2, the output termination of transport and placing device AR2
The base stage of triode Q1 and one end of resistance R6, one end of the collector connecting resistance R8 of triode Q1, another termination of resistance R8
The non-inverting input terminal of another termination comparator AR3 of power supply+5V, resistance R6, the touching of another termination variable resistance R7 of resistance R4
Point 2, the contact 2 of variable resistance R7 connects the contact 3 of variable resistance R7 and one end of resistance R5 and the collector of triode Q2, and three
The other end of the base stage connecting resistance R5 of pole pipe Q2 and one end of resistance R11, the emitter ground connection of triode Q2, resistance R11's is another
The inverting input terminal of one termination comparator AR3.
Due to the use of above technical scheme, the utility model has the following advantages that compared with prior art；
1, with inductance L1 and capacitor C1, capacitor C2 composition lc circuit filtering, the anti-interference of signal is improved, and devise
For the clamp circuit that diode D1, diode D2 common cathode form by signal clamper in 0-+5V, anti-stop signal is excessive to destroy electricity
Road.
2, after the signal exported with transport and placing device AR1 with phase amplified signal Acquisition Circuit, all the way through transport and placing device AR2 with mutually putting
After big in input comparator AR3 non-inverting input terminal, signal power is further increased, the transmission rate of signal, two Lu Jingke are improved
After the attenuator circuit that power transformation hinders R7 and resistance R4 composition is decayed in input comparator AR3 inverting input terminal, in order to improve triode
Q2 detects the accuracy of high level signal, needs first to decay to signal, when transport and placing device AR2 output abnormality high level signal, three
Pole pipe Q1 conducting, triode Q1 feed back to transport and placing device AR2 inverting input terminal output signal, reduce the output signal of transport and placing device AR2
Current potential, when the signal after decaying is abnormal signal, abnormal signal is released to greatly completely, is finally compared by triode Q2 conducting
It is further stabilized on the basis of improving signal rate compared with the device AR3 signal for comparing transport and placing device AR2 and attenuator circuit output
Signal.
Detailed description of the invention
Fig. 1 is a kind of large-scale digital venue environment detector circuit module figure of the utility model.
Fig. 2 is a kind of large-scale digital venue environment detector circuit diagram of the utility model.
Specific embodiment
Aforementioned and other technology contents, feature and effect in relation to the utility model, in following cooperation with reference to figures 1 through attached
Fig. 2 can be clearly presented in the detailed description of embodiment.The structure content being previously mentioned in following embodiment is to say
Bright book attached drawing is reference.
Each exemplary embodiment of the utility model is described below with reference to accompanying drawings.
Embodiment one, a kind of large-scale digital venue environment detector, including signal acquisition circuit, feedback comparison circuit and steady
Voltage follower circuit, the signal acquisition circuit receive large-scale digital venue environment detector controlling terminal reception signal and are passed with signal
The signal of defeated path input, with inductance L1 and capacitor C1, capacitor C2 composition lc circuit filtering, and devise diode D1,
For the clamp circuit of diode D2 common cathode composition by signal clamper in 0-+5V, the feedback comparison circuit uses transport and placing device AR1
It is same mutually defeated with input comparator AR3 after mutually amplifying through transport and placing device AR2 all the way after signal with the output of phase amplified signal Acquisition Circuit
Enter in end, after the attenuator circuit decaying that two tunnels are formed through variable resistance R7 and resistance R4 in input comparator AR3 inverting input terminal,
Wherein triode Q1 feeds back the output signal of transport and placing device AR2, adjusts the output signal current potential of transport and placing device AR2, triode Q2 detection
Signal after attenuator circuit releases abnormal signal completely to greatly, and it is more electric that the last voltage-stabilizing output circuit receives feedback
Road output signal exports after the voltage regulator circuit pressure stabilizing formed with triode Q3 and voltage-stabiliser tube D7, that is to say the large-scale number of input
Venues Environment detector controlling terminal receives in signal signal transmission passage；
After the signal that the feedback comparison circuit uses transport and placing device AR1 to export with phase amplified signal Acquisition Circuit, pass through all the way
Transport and placing device AR2 further increases signal power, improves the biography of signal in input comparator AR3 non-inverting input terminal after mutually amplifying
Defeated rate, after the attenuator circuit decaying that two tunnels are formed through variable resistance R7 and resistance R4 in input comparator AR3 inverting input terminal,
In order to improve the accuracy of triode Q2 detection high level signal, need first to decay to signal, when transport and placing device AR2 output abnormality is high
When level signal, triode Q1 conducting, triode Q1 feeds back to transport and placing device AR2 inverting input terminal output signal, reduces transport and placing device
The output signal current potential of AR2, when the signal after decaying is abnormal signal, triode Q2 conducting releases abnormal signal completely
To greatly, last comparator AR3 compares the signal of transport and placing device AR2 and attenuator circuit output, on the basis of improving signal rate,
Further stabilize signal, one end of the anti-phase input terminating resistor R2 of transport and placing device AR1, resistance R3, another termination of resistance R2
Ground, output end, one end of resistance R4 and the non-inverting input terminal of transport and placing device AR2 of another termination transport and placing device AR1 of resistance R3, amplifier
The emitter of the anti-phase input termination triode Q1 of device AR2, the base stage and resistance R6 of the output termination triode Q1 of transport and placing device AR2
One end, one end of the collector connecting resistance R8 of triode Q1, another termination power+5V of resistance R8, the other end of resistance R6
The non-inverting input terminal of comparator AR3 is connect, the contact 2 of another termination variable resistance R7 of resistance R4, the contact 2 of variable resistance R7 connects
The collector of the contact 3 of variable resistance R7 and one end of resistance R5 and triode Q2, the base stage connecting resistance R5's of triode Q2
One end of the other end and resistance R11, the emitter ground connection of triode Q2, the reverse phase of another termination comparator AR3 of resistance R11 are defeated
Enter end.
Embodiment two, on the basis of example 1, the signal acquisition circuit receive large-scale digital venue environment measuring
The signal of instrument control terminal received signals signal transmission passage input terminal forms LC with inductance L1 and capacitor C1, capacitor C2
Circuit filtering, improves the anti-interference of signal, and devise diode D1, diode D2 common cathode composition clamp circuit will believe
Number clamper is in 0-+5V, and anti-stop signal is excessive to destroy circuit, and a termination signal input port of resistance R1, resistance R1's is another
One end of one termination capacitor C1 and inductance L1, one end of another termination capacitor C2 of inductance L1 and diode D1, diode D2
The non-inverting input terminal of cathode and transport and placing device AR1, the other end ground connection of capacitor C1, capacitor C2, the plus earth of diode D2, two
The anode of pole pipe D1 meets power supply+5V.
Embodiment three, in the pressure stabilizing that embodiment two, the voltage-stabilizing output circuit are formed with triode Q3 and voltage-stabiliser tube D7
It is exported after circuit pressure stabilizing, further improves the stability of signal, that is to say the large-scale digital venue environment detector control of input
In terminal received signals signal transmission passage, the collector of triode Q3 connect comparator AR3 output end and resistance R9 one
End, the other end of the base stage connecting resistance R9 of triode Q3 and the cathode of voltage-stabiliser tube D7, the plus earth of voltage-stabiliser tube D7, triode Q3
Emitter connecting resistance Ri0 one end, another termination signal output port of resistance R10.
When the utility model is specifically used, a kind of large-scale digital venue environment detector, including signal acquisition circuit, feedback
Comparison circuit and voltage-stabilizing output circuit, the signal acquisition circuit receive large-scale digital venue environment detector controlling terminal and receive
The signal of signal signal transmission passage input terminal with inductance L1 and capacitor C1, capacitor C2 composition lc circuit filtering, and designs
Diode D1, diode D2 common cathode composition clamp circuit by signal clamper in 0-+5V, the feedback comparison circuit is transported
After the signal exported with phase amplified signal Acquisition Circuit with transport and placing device AR1, compare all the way through transport and placing device AR2 with being inputted after mutually amplifying
In device AR3 non-inverting input terminal, signal power is further increased, improves the transmission rate of signal, two tunnels are through variable resistance R7 and electricity
It hinders after the attenuator circuit that R4 is formed is decayed in input comparator AR3 inverting input terminal, in order to improve triode Q2 detection high level
The accuracy of signal needs first to decay to signal, when transport and placing device AR2 output abnormality high level signal, triode Q1 conducting, and three
Pole pipe Q1 feeds back to transport and placing device AR2 inverting input terminal output signal, the output signal current potential of transport and placing device AR2 is reduced, after decaying
Signal be abnormal signal when, triode Q2 conducting, abnormal signal is released completely to greatly, last comparator AR3 compares fortune
The signal for putting device AR2 and attenuator circuit output further stabilizes signal on the basis of improving signal rate, last described
Voltage-stabilizing output circuit receives feedback and compares circuit output signal, the voltage regulator circuit pressure stabilizing formed with triode Q3 and voltage-stabiliser tube D7
After export, that is to say that the large-scale digital venue environment detector controlling terminal of input receives in signal signal transmission passage.
The above is to combine specific embodiment further detailed description of the utility model, and it cannot be said that originally
Utility model specific implementation is limited only to this；Belonging to the utility model and for those skilled in the technology concerned,
Under the premise of technical solutions of the utility model thinking, made expansion and the replacement of operating method, data should all be fallen in
Within scope of protection of the utility model.
Claims (3)
1. a kind of large-scale digital venue environment detector, including signal acquisition circuit, feedback comparison circuit and voltage-stabilizing output circuit,
It is passed it is characterized in that, the signal acquisition circuit receives large-scale digital venue environment detector controlling terminal reception signal with signal
The signal of defeated path input, with inductance L1 and capacitor C1, capacitor C2 composition lc circuit filtering, and devise diode D1,
For the clamp circuit of diode D2 common cathode composition by signal clamper in 0-+5V, the feedback comparison circuit uses transport and placing device AR1
It is same mutually defeated with input comparator AR3 after mutually amplifying through transport and placing device AR2 all the way after signal with the output of phase amplified signal Acquisition Circuit
Enter in end, after the attenuator circuit decaying that two tunnels are formed through variable resistance R7 and resistance R4 in input comparator AR3 inverting input terminal,
Wherein triode Q1 feeds back the output signal of transport and placing device AR2, adjusts the output signal current potential of transport and placing device AR2, triode Q2 detection
Signal after attenuator circuit releases abnormal signal completely to greatly, and it is more electric that the last voltage-stabilizing output circuit receives feedback
Road output signal exports after the voltage regulator circuit pressure stabilizing formed with triode Q3 and voltage-stabiliser tube D7, that is to say the large-scale number of input
Venues Environment detector controlling terminal receives in signal signal transmission passage；
The feedback comparison circuit includes transport and placing device AR1, one end of the anti-phase input terminating resistor R2 of transport and placing device AR1, resistance R3,
The other end of resistance R2 is grounded, the output end of another termination transport and placing device ARl, one end of resistance R4 and the transport and placing device AR2 of resistance R3
Non-inverting input terminal, the emitter of the anti-phase input termination triode Q1 of transport and placing device AR2, the output of transport and placing device AR2 terminates three poles
The base stage of pipe Q1 and one end of resistance R6, one end of the collector connecting resistance R8 of triode Q1, another termination power of resistance R8+
The non-inverting input terminal of another termination comparator AR3 of 5V, resistance R6, the contact 2 of another termination variable resistance R7 of resistance R4, can
The contact 2 of power transformation resistance R7 meets the contact 3 of variable resistance R7 and one end of resistance R5 and the collector of triode Q2, triode Q2
Base stage connecting resistance R5 the other end and resistance R11 one end, triode Q2 emitter ground connection, another termination of resistance R11
The inverting input terminal of comparator AR3.
2. a kind of large-scale digital venue environment detector as described in claim 1, which is characterized in that the signal acquisition circuit packet
Include resistance R1, a termination signal input port of resistance R1, one end of another the termination capacitor C1 and inductance L1 of resistance R1, inductance
One end of another termination capacitor C2 of L1 and the non-inverting input terminal of diode D1, the cathode of diode D2 and transport and placing device AR1, electricity
Hold the other end ground connection of C1, capacitor C2, the plus earth of diode D2, the anode of diode D1 meets power supply+5V.
3. a kind of large-scale digital venue environment detector as claimed in claim 2, which is characterized in that the voltage-stabilizing output circuit packet
Triode Q3 is included, the collector of triode Q3 connects the output end of comparator AR3 and one end of resistance R9, and the base stage of triode Q3 connects
The other end of resistance R9 and the cathode of voltage-stabiliser tube D7, the plus earth of voltage-stabiliser tube D7, the emitter connecting resistance R10's of triode Q3
One end, another termination signal output port of resistance R10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821381614.9U CN208547372U (en) | 2018-08-27 | 2018-08-27 | A kind of large-scale digital venue environment detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821381614.9U CN208547372U (en) | 2018-08-27 | 2018-08-27 | A kind of large-scale digital venue environment detector |
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| Publication Number | Publication Date |
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| CN208547372U true CN208547372U (en) | 2019-02-26 |
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| CN201821381614.9U Active CN208547372U (en) | 2018-08-27 | 2018-08-27 | A kind of large-scale digital venue environment detector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110971229A (en) * | 2019-12-26 | 2020-04-07 | 郑州科技学院 | Electronic signal calibration system |
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2018
- 2018-08-27 CN CN201821381614.9U patent/CN208547372U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110971229A (en) * | 2019-12-26 | 2020-04-07 | 郑州科技学院 | Electronic signal calibration system |
| CN110971229B (en) * | 2019-12-26 | 2020-08-25 | 郑州科技学院 | Electronic signal calibration system |
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