CN108205857A - A kind of electrical communication system - Google Patents
A kind of electrical communication system Download PDFInfo
- Publication number
- CN108205857A CN108205857A CN201711266232.1A CN201711266232A CN108205857A CN 108205857 A CN108205857 A CN 108205857A CN 201711266232 A CN201711266232 A CN 201711266232A CN 108205857 A CN108205857 A CN 108205857A
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- resistance
- frequency
- circuit
- transport
- signal
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B1/00—Systems for signalling characterised solely by the form of transmission of the signal
- G08B1/08—Systems for signalling characterised solely by the form of transmission of the signal using electric transmission ; transformation of alarm signals to electrical signals from a different medium, e.g. transmission of an electric alarm signal upon detection of an audible alarm signal
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Abstract
The invention discloses a kind of electrical communication systems, including signal frequency Acquisition Circuit, frequency adjustment circuit and warning circuit, signal frequency in signal frequency Acquisition Circuit acquisition telecommunications in signal transmission passage, frequency tuned circuit is with transport and placing device AR2 and triode Q2 composition compound circuit Regulate signal frequencies, by being inputted in warning circuit after transport and placing device AR3 ratio enlargements, compensator AR4 is devised simultaneously compensates current potential for transport and placing device AR2, the signal that warning circuit receives frequency adjusts circuit is drive signal, when the invasion of interference or other computers for having extraneous strong signal, the signal exported using frequency adjustment circuit is directly driven warning circuit and alarmed, staff is reminded to carry out corresponding measure in time, response is fast and practical value is high.
Description
Technical field
The invention belongs to electronic communication technology fields, are related to a kind of electrical communication system.
Background technology
The arrival of telecommunications brings huge change for electronic equipment, and the development of each telecommunications all can be phase
The electronic equipment answered brings very big progress, makes the better service society of science and technology.Though telecommunications development is very ripe, at present
There are still the safety problem of many problems, wherein telecommunications, especially some short distances, low frequency communication computer equipment, should
For the electrical communication system of midget plant, once having the interference of extraneous strong signal or the invasion of other computers, all can be should
Electrical communication system brings interference or destruction, causes incalculable damage, and midget plant does not have powerful fund to go to have replaced
Kind electrical communication system, so midget plant's short distance, the electrical communication system antijamming capability of low frequency communication are weak and stablize
Property is poor.
Invention content
The object of the present invention is to provide a kind of electrical communication systems, solve midget plant's short distance in the prior art
It is weak from the electrical communication system antijamming capability of, low frequency communication and the problem of stability is poor.
The technical solution adopted in the present invention is a kind of electrical communication system, including signal frequency Acquisition Circuit, frequency tune
Economize on electricity road and warning circuit, and signal frequency Acquisition Circuit includes frequency collection device, acquires signal transmission in electronics and leads to
The signal frequency in road, frequency tuned circuit Regulate signal frequency, the frequency signal after adjusting are inputted in warning circuit, driving report
Alert device work.
It is of the invention to be further characterized in that,
The output terminal of signal frequency Acquisition Circuit frequency collection device is connect with one end of resistance R12, the other end of resistance R12
It is connect with one end of resistance R14 and one end of capacitance C2, the other end ground connection of resistance R14, another terminating resistor R6 of capacitance C2
One end and resistance R7 one end, the other end ground connection of resistance R6, the power end of frequency collection device and one end of resistance R13 and electricity
Hold one end connection of C5, the other end of resistance R13 and the other end of capacitance C5 are connect with power supply, the ground connection termination of frequency collection device
Ground.
Frequency adjustment circuit includes transport and placing device AR2, one end of homophase input terminating resistor R7 of transport and placing device AR2 and resistance R5
One end, the emitter of the anti-phase input termination triode Q2 of transport and placing device AR2, the base stage connecting resistance R7's of triode Q2 is another
End, triode Q2 collectors connecting resistance R2 one end and transport and placing device AR3 inverting inputs, the one of another terminating resistor R1 of resistance R2
Another termination power of end and one end of capacitance C1, resistance R1 and capacitance C1, the one of the output terminating resistor R9 of transport and placing device AR2
End, the in-phase input end of another termination AR3 transport and placing devices of R9 resistance.
Warning circuit includes metal-oxide-semiconductor Q1, and the grid of metal-oxide-semiconductor Q1 connects the output terminal of transport and placing device AR3, and the drain electrode of metal-oxide-semiconductor Q1 connects
The contact 5 of relay K1 and the anode of diode D1, the contact 4 of relay K1 connect the cathode and power supply of diode D1, relay
One end of the 1 connecting resistance R3 of contact of K1, another termination power of resistance R3, the contact 2 of relay K1 are grounded, and relay K1's touches
The anode of 3 devices taking alarm of point, one end of the cathode connecting resistance R4 of alarm, the other end of resistance R4 and the source electrode of metal-oxide-semiconductor Q1 are total to
Endpoint is grounded.
Frequency adjusts phone and further includes compensator AR4, the output terminal of compensator AR4 and one end of resistance R5 and resistance R7's
One end connects, and the inverting input of compensator AR4 and the other end of resistance R5 and connects, the in-phase input end of compensator AR4 with
The output terminal of transport and placing device AR2 connects.
The beneficial effects of the invention are as follows the accuracy and response speed for improving drive signal alarm, once there is extraneous strong letter
Number interference or other computers invasion when, using frequency adjustment circuit export signal directly drive warning circuit alarm,
Staff is reminded to carry out corresponding measure in time, response is fast and practical value is high.
Description of the drawings
Fig. 1 is a kind of circuit module figure of electrical communication system of the present invention；
Fig. 2 is a kind of circuit diagram of electrical communication system of the present invention.
In figure, 1. signal frequency Acquisition Circuits, 2. frequency adjustment circuits, 3. warning circuits, 4. frequency collection devices, 5. alarms
Device.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawings and detailed description.
Such as Fig. 1-2, a kind of electrical communication system, including signal frequency Acquisition Circuit 1, frequency adjustment circuit 2 and alarm electricity
Road 3, signal frequency Acquisition Circuit 1 include frequency collection device 4, and the output terminal of frequency collection device 4 is connect with one end of resistance R12,
The other end of resistance R12 is connect with one end of resistance R14 and one end of capacitance C2, the other end ground connection of resistance R14, capacitance C2's
One end of another terminating resistor R6 and the other end of resistance R7, resistance R6 the other end ground connection, the power end of frequency collection device 1 with
One end of resistance R13 is connected with one end of capacitance C5, and the other end of resistance R13 and the other end of capacitance C5 are connect with+5V power supplys,
The ground terminal ground connection of frequency collection device 4.
Frequency adjustment circuit 2 includes transport and placing device AR2, one end of the homophase input terminating resistor R7 of transport and placing device AR2 and resistance
One end of R5, the emitter of the anti-phase input termination triode Q2 of transport and placing device AR2, the base stage connecting resistance R7's of triode Q2 is another
End, triode Q2 collectors connecting resistance R2 one end and transport and placing device AR3 inverting inputs, the one of another terminating resistor R1 of resistance R2
End and one end of capacitance C1, the other end of resistance R1 and another termination power of capacitance C1, the output terminating resistor of transport and placing device AR2
One end of R9, the in-phase input end of another termination AR3 transport and placing devices of R9 resistance.
Warning circuit 3 includes metal-oxide-semiconductor Q1, and the grid of metal-oxide-semiconductor Q1 connects the output terminal of transport and placing device AR3, and the drain electrode of metal-oxide-semiconductor Q1 connects
The contact 5 of relay K1 and the anode of diode D1, the contact 4 of relay K1 connect the cathode and power supply of diode D1, relay
One end of the 1 connecting resistance R3 of contact of K1, another termination power of resistance R3, the contact 2 of relay K1 are grounded, and relay K1's touches
The anode of 3 devices 5 taking alarm of point, one end of the cathode connecting resistance R4 of alarm 5, the other end of resistance R4 and the source electrode of metal-oxide-semiconductor Q1
Endpoint ground connection altogether.
Frequency adjustment circuit 2 further includes compensator AR4, the output terminal of compensator AR4 and one end of resistance R5 and resistance R7
One end connect, the inverting input of compensator AR4 and the other end of resistance R5 connect, the in-phase input end of compensator AR4 with
The output terminal of transport and placing device AR2 connects.
The specific work process of the present invention is that the frequency collection device 4 of signal frequency Acquisition Circuit 1 acquires electrical communication system
Signal frequency in middle signal transmission passage, after resistance R12 partial pressures after the RC circuit filterings that are made of resistance R14 and capacitance C2
It inputs in frequency adjustment circuit 2, frequency adjustment circuit 2 receives signal using transport and placing device AR2 and triode Q2 composition compound circuits
The signal of frequency collection circuit 1, when the invasion of interference or other computers for having extraneous strong signal, signal frequency Acquisition Circuit
The current potential of 1 output is high level current potential, and triode Q2 is connected, and the current potential of the inverting input of transport and placing device AR2 increases, and due to three
The conducting of pole pipe Q2 is also provided with shunting function, and the homophase input terminal potential of transport and placing device AR2 is lower, and devises compensator AR4 and is
The anti-phase input end compensating current potential of transport and placing device AR3 makes the output high level signal of transport and placing device AR2, in order to enable the intensity of signal
Enough driving warning circuits 3 are alarmed, and devise the processing of transport and placing device AR3 ratio enlargements, and during normal condition, triode Q2 is not turned on, fortune
Device AR2 output low level signals are put, signal strength can not drive warning circuit 3 after the processing of transport and placing device AR3 ratio enlargements
Alarm, warning circuit 3 select the output signal of metal-oxide-semiconductor Q1 receives frequencies adjusting circuit 2, the confession of metal-oxide-semiconductor Q1 cut-in relays K1
Electrical circuit, when the invasion of interference or other computers for having extraneous strong signal, the signal of transport and placing device AR3 outputs at this time is high electricity
Flat, metal-oxide-semiconductor Q1 conductings, relay K1 obtains electric, and the contact of contact 1,2 of relay K1 becomes the contact of contact 1,3, and alarm 5 is alarmed,
Staff makes corresponding measure in time, and during normal condition, metal-oxide-semiconductor Q1 is not turned on, at this time relay K1 must not electricity, that is, alarm
Device 5 does not work.
Claims (5)
1. a kind of electrical communication system, which is characterized in that including signal frequency Acquisition Circuit (1), frequency adjustment circuit (2) and report
Alert circuit (3), the signal frequency Acquisition Circuit (1) include frequency collection device (4), and the frequency collection device (4) acquires electronics
Signal frequency in communication in signal transmission passage, frequency adjustment circuit (2) the Regulate signal frequency, the frequency letter after adjusting
In number input warning circuit (3), driving alarm (5) works.
2. a kind of electrical communication system according to claim 1, it is further characterized in that, the frequency collection device (4) it is defeated
Outlet is connect with one end of resistance R12, and the other end of the resistance R12 is connect with one end of one end of resistance R14 and capacitance C2,
The other end ground connection of the resistance R14, one end of another terminating resistor R6 of the capacitance C2 and one end of resistance R7, the electricity
The other end ground connection of R6 is hindered, the power end of the frequency collection device (4) is connect with one end of one end of resistance R13 and capacitance C5,
The other end of the other end of the resistance R13 and the capacitance C5 are connect with power supply, the ground connection termination of the frequency collection device (4)
Ground.
3. a kind of electrical communication system according to claim 2, it is further characterized in that, frequency adjustment circuit (2) packet
The homophase input for including transport and placing device AR2, the transport and placing device AR2 terminates one end of the resistance R7 and one end of resistance R5, the fortune
The emitter of the anti-phase input termination triode Q2 of device AR2 is put, the base stage of the triode Q2 connects the other end of the resistance R7,
One end of collector connecting resistance R2 of the triode Q2 and the inverting input of transport and placing device AR3, the other end of the resistance R2
Another termination power of one end of connecting resistance R1 and one end of capacitance C1, the other end of the resistance R1 and the capacitance C1, institute
State one end of the output terminating resistor R9 of transport and placing device AR2, the homophase input of another termination transport and placing device AR3 of the resistance R9
End.
4. a kind of electrical communication system according to claim 3, it is further characterized in that, the warning circuit (3) is including MOS
Pipe Q1, the grid of the metal-oxide-semiconductor Q1 connect the output terminal of the transport and placing device AR3, and the drain electrode contact relay K1's of the metal-oxide-semiconductor Q1 touches
The anode of point 5 and diode D1, the contact 4 of the relay K1 connects the cathode and power supply of the diode D1, the relay
One end of the 1 connecting resistance R3 of contact of K1, another termination power of the resistance R3, the contact 2 of the relay K1 is grounded, described
The anode of 3 device taking alarm (5) of contact of relay K1, one end of the cathode connecting resistance R4 of the alarm (5), the resistance R4
The other end and the metal-oxide-semiconductor Q1 source electrode be total to endpoint ground connection.
5. a kind of electrical communication system according to claim 3, it is further characterized in that, the frequency adjustment circuit (2) is also
Including compensator AR4, the output terminal of the compensator AR4 connects with one end of the resistance R5 and one end of the resistance R7,
The other end of the inverting input of the compensator AR4 and the resistance R5 connect, the in-phase input end of the compensator AR4 with
The output terminal of the transport and placing device AR2 connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711266232.1A CN108205857A (en) | 2017-12-05 | 2017-12-05 | A kind of electrical communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711266232.1A CN108205857A (en) | 2017-12-05 | 2017-12-05 | A kind of electrical communication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108205857A true CN108205857A (en) | 2018-06-26 |
Family
ID=62604211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711266232.1A Pending CN108205857A (en) | 2017-12-05 | 2017-12-05 | A kind of electrical communication system |
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| CN (1) | CN108205857A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109889795A (en) * | 2019-04-17 | 2019-06-14 | 冯芊雅 | A kind of domestic video monitoring system |
| CN109905339A (en) * | 2019-02-28 | 2019-06-18 | 闫巧琴 | Informative library signal compensation circuit |
| CN110233633A (en) * | 2019-06-18 | 2019-09-13 | 郑州工程技术学院 | A kind of data transfer of computer system based on Internet of Things |
| CN111049872A (en) * | 2019-03-29 | 2020-04-21 | 重庆电子工程职业学院 | Communication information acquisition monitoring management system |
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Application publication date: 20180626 |
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