CN109905088A - A kind of power transmission real-time monitoring system - Google Patents
A kind of power transmission real-time monitoring system Download PDFInfo
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- CN109905088A CN109905088A CN201910076045.XA CN201910076045A CN109905088A CN 109905088 A CN109905088 A CN 109905088A CN 201910076045 A CN201910076045 A CN 201910076045A CN 109905088 A CN109905088 A CN 109905088A
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Abstract
The invention discloses a kind of power transmission real-time monitoring systems, including signal frequency Acquisition Circuit, phase shift feed circuit and frequency-selecting output circuit, the signal frequency Acquisition Circuit selects the received frequency data signal of controlling terminal in the signal frequency collector J1 acquisition power transmission real-time monitoring system of model SJ-ADC, the phase shift feed circuit uses transport and placing device AR1 and resistance R5~resistance R8 and capacitor C3, capacitor C4 forms phase-shift circuit adjustment signal pulse width, it is inputted in transport and placing device AR4 non-inverting input terminal after using triode Q1 and voltage-stabiliser tube D7 pressure stabilizing simultaneously, and use triode Q2 and capacitor C6 feedback signal to triode Q3 base stage, triode Q4 feedback signal is to triode Q3 emitter, the last frequency-selecting output circuit uses resistance R16- resistance R18 Filter out single-frequency signals output with capacitor C8- capacitor C10 composition frequency selection circuit, can the received frequency data signal of controlling terminal in real-time monitoring power transmission real-time monitoring system, to signal frequency modulation and pressure stabilizing.
Description
Technical field
The present invention relates to field of circuit technology, more particularly to a kind of power transmission real-time monitoring system.
Background technique
With the rapid development of Chinese national economy, all trades and professions are also increasingly to increase for the demand of the energy, and to thing
A society is provided for the power industry of main energy sources, and the social responsibility undertaken is also more and more great.Power industry for
The development of social economy provides endlessly electric power energy, the transmission line of electricity of nationwide, high voltage tower, substation
In daily operation, power transmission real-time monitoring system application at present grows up equal facilities therewith, and manpower is greatly saved
Material resources improve electric power energy detection efficiency, but in practice, since the environment during power transmission is various, electric power
Transmit real-time monitoring system acquisition module acquisition data-signal during wireless transmission, especially encounter strong magnetoelectricity field when
It waits, frequency hopping and decaying often occurs, seriously affect the result of controlling terminal analysis data in power transmission real-time monitoring system.
Summary of the invention
For above situation, for the defect for overcoming the prior art, it is real that purpose of the present invention is to provide a kind of power transmissions
When monitor system, have be skillfully constructed, the characteristic of human oriented design, can be controlled in real-time monitoring power transmission real-time monitoring system
The received frequency data signal of terminal processed prevents distorted signals to signal frequency modulation and pressure stabilizing.
Its technical solution solved is a kind of power transmission real-time monitoring system, including signal frequency Acquisition Circuit, phase shift
Feed circuit and frequency-selecting output circuit, the signal frequency Acquisition Circuit select the signal frequency collector J1 of model SJ-ADC
The received frequency data signal of controlling terminal in power transmission real-time monitoring system is acquired, with diode D2, diode D3 group
At clamp circuit by signal clamper in 0~+5V, the phase shift feed circuit use transport and placing device AR1 and resistance R5~resistance
R8 and capacitor C3, capacitor C4 form phase-shift circuit adjustment signal pulse width, while steady with triode Q1 and voltage-stabiliser tube D7
It is inputted in transport and placing device AR4 non-inverting input terminal after pressure, and with triode Q2 and capacitor C6 feedback signal to triode Q3 base stage,
Triode Q4 feedback signal plays the role of adjusting phase-shift circuit output amplitude to triode Q3 emitter, last described
Frequency-selecting output circuit filters out single-frequency signals with resistance R16- resistance R18 and capacitor C8- capacitor C10 composition frequency selection circuit
Output that is to say the received data-signal current potential of controlling terminal in compensation power transmission real-time monitoring system；
The phase shift feed circuit includes transport and placing device AR1, one end of the homophase input termination capacitor C2 of transport and placing device AR1 and electricity
Hinder one end of R4, the other end ground connection of capacitor C2, one end of the anti-phase input terminating resistor R3 of transport and placing device AR1, resistance R5, resistance
The anode of another terminating diode D4 of R3, one end of the output terminating resistor R6 of transport and placing device AR1 and the anode of diode D8, electricity
Hinder one end and three of the cathode of another terminating diode D4 of R6, the other end of one end of capacitor C3 and resistance R5, resistance R7
The emitter of the collector of pole pipe Q4, triode Q3, the other end of another termination capacitor C3 of resistance R7 and one end of resistance R8
And the anode of diode D5, the cathode of diode D5 connect one end of capacitor C4 and the cathode of voltage-stabiliser tube D6, capacitor C4's is another
End ground connection, the plus earth of voltage-stabiliser tube D6, the collector and electricity of the base stage of another termination triode Q3 of resistance R8, triode Q1
One end of R9, resistance R10, the other end of the collector connecting resistance R9 of triode Q3 and one end of resistance R11 are hindered, resistance R11's
The base stage of the other end of the base stage connecting resistance R10 of another termination power+5V, triode Q1 and triode Q2, voltage-stabiliser tube D7 it is negative
Pole, the plus earth of voltage-stabiliser tube D7, the emitter of triode Q1 connect triode Q2 collector and resistance R14, capacitor C7 one
The non-inverting input terminal of end and transport and placing device AR4, the emitter of triode Q2 connect one end of capacitor C6, another termination two of capacitor C6
The cathode of pole pipe D8, one end of another terminating resistor R13 of capacitor C7, the other end ground connection of resistance R13, transport and placing device AR4's is anti-
Mutually input termination capacitor C5, one end of resistance R12 and the base stage of triode Q4, another terminating resistor R14's of capacitor C5 is another
End, the other end of the output terminating resistor R12 of transport and placing device AR4 and the emitter of triode Q4.
Due to the use of above technical scheme, the present invention has the following advantages that compared with prior art；
1. forming phase-shift circuit adjustment signal with transport and placing device AR1 and resistance R5~resistance R8 and capacitor C3, capacitor C4
Pulse width, by adjusting the adjustable phase-shift circuit output frequency size of size of capacitor C2, capacitor C4 and resistance R5, wherein
For triode Q3 feedback signal to capacitor C3, capacitor C3 charge-discharge process is the half period of signal, realizes the shifting to signal
Phase filters out the unusual waveforms in signal；
2. triode Q2 is connected at this time when signal potential is excessive, triode Q2 feedback signal leads diode D8 reverse phase
At logical input triode Q3 base potential, triode voltage regulator circuit output amplitude, when signal potential is too low, three poles are reduced
Pipe Q4 conducting, triode Q4 feedback signal to triode Q3 emitter potential can be improved transport and placing device AR4 non-inverting input terminal electricity
Position has the function that raising transport and placing device AR4 output amplitude, and wherein capacitor C6 is shunt capacitance, filters out making an uproar for high-frequency signal
Sound, capacitor C5 are decoupling capacitor, filter out the noise of low frequency signal, realize the fm role to signal.
Detailed description of the invention
Fig. 1 is a kind of module map of power transmission real-time monitoring system of the present invention.
Fig. 2 is a kind of schematic diagram of power transmission real-time monitoring system of the present invention.
Specific embodiment
For the present invention aforementioned and other technology contents, feature and effect, in following cooperation with reference to figures 1 through attached drawing 2
To in the detailed description of embodiment, can clearly present.The structure content being previously mentioned in following embodiment is with specification
Attached drawing is reference.
Embodiment one, a kind of power transmission real-time monitoring system, including signal frequency Acquisition Circuit, phase shift feed circuit and
Frequency-selecting output circuit, the signal frequency Acquisition Circuit select the signal frequency collector J1 acquisition electric power of model SJ-ADC to pass
The received frequency data signal of controlling terminal in defeated real-time monitoring system, with the clamper electricity of diode D2, diode D3 composition
By signal clamper in 0~+5V, the phase shift feed circuit uses transport and placing device AR1 and resistance R5~resistance R8 and capacitor on road
C3, capacitor C4 form phase-shift circuit adjustment signal pulse width, while transporting with inputting after triode Q1 and voltage-stabiliser tube D7 pressure stabilizing
It puts in device AR4 non-inverting input terminal, and with triode Q2 and capacitor C6 feedback signal to triode Q3 base stage, triode Q4 is anti-
Feedback signal plays the role of adjusting phase-shift circuit output amplitude, the last frequency-selecting output electricity to triode Q3 emitter
Road transport filters out single-frequency signals output with resistance R16- resistance R18 and capacitor C8- capacitor C10 composition frequency selection circuit, namely
It is the received data-signal current potential of controlling terminal in compensation power transmission real-time monitoring system；
The phase shift feed circuit is moved with transport and placing device AR1 and resistance R5~resistance R8 and capacitor C3, capacitor C4 composition
Circuitry phase adjustment signal pulse width, it is defeated by adjusting capacitor C2, the adjustable phase-shift circuit of size of capacitor C4 and resistance R5
Frequency size out, wherein triode Q3 feedback signal to capacitor C3, capacitor C3 charge-discharge process are the half period of signal,
It realizes the phase shift to signal, while being inputted in transport and placing device AR4 non-inverting input terminal after using triode Q1 and voltage-stabiliser tube D7 pressure stabilizing, and
And with triode Q2 and capacitor C6 feedback signal to triode Q3 base stage, triode Q4 feedback signal to triode Q3 emits
Pole, when signal potential is excessive, triode Q2 is connected at this time, and triode Q2 feedback signal makes diode D8 reverse phase conducting input three
At pole pipe Q3 base potential, triode voltage regulator circuit output amplitude is reduced, when signal potential is too low, triode Q4 is led
Logical, triode Q4 feedback signal to triode Q3 emitter potential can be improved transport and placing device AR4 homophase input terminal potential, reach
The effect of transport and placing device AR4 output amplitude is improved, wherein capacitor C6 is shunt capacitance, filters out the noise of high-frequency signal, capacitor
C5 is decoupling capacitor, filters out the noise of low frequency signal, realizes the fm role to signal,
One end of the homophase input termination capacitor C2 of transport and placing device AR1 and one end of resistance R4, the other end ground connection of capacitor C2,
One end of the anti-phase input terminating resistor R3 of transport and placing device AR1, resistance R5, the anode of another terminating diode D4 of resistance R3, fortune
Put device AR1 output terminating resistor R6 one end and diode D8 anode, the cathode of another terminating diode D4 of resistance R6,
The transmitting of the collector, triode Q3 of the other end of one end of capacitor C3 and resistance R5, one end of resistance R7 and triode Q4
The anode of pole, the other end of another termination capacitor C3 of resistance R7 and one end of resistance R8 and diode D5, diode D5's
Cathode connects one end of capacitor C4 and the cathode of voltage-stabiliser tube D6, the other end ground connection of capacitor C4, the plus earth of voltage-stabiliser tube D6, resistance
Base stage, the collector of triode Q1 and one end of resistance R9, resistance R10 of another termination triode Q3 of R8, triode Q3's
The other end of collector connecting resistance R9 and one end of resistance R11, another termination power+5V of resistance R11, the base stage of triode Q1
The cathode of the base stage of the other end of connecting resistance R10 and triode Q2, voltage-stabiliser tube D7, the plus earth of voltage-stabiliser tube D7, triode Q1
Emitter connect the collector of triode Q2 and the non-inverting input terminal of resistance R14, one end of capacitor C7 and transport and placing device AR4, three
The emitter of pole pipe Q2 connects one end of capacitor C6, the cathode of another terminating diode D8 of capacitor C6, another termination of capacitor C7
One end of resistance R13, the other end ground connection of resistance R13, the anti-phase input of transport and placing device AR4 terminate one end of capacitor C5, resistance R12
With the base stage of triode Q4, the other end of another terminating resistor R14 of capacitor C5, transport and placing device AR4's exports terminating resistor R12's
The emitter of the other end and triode Q4.
Embodiment two, on the basis of example 1, the frequency-selecting output circuit use resistance R16- resistance R18 and capacitor
C8- capacitor C10 composition frequency selection circuit filters out single-frequency signals output, and single-frequency signals are relatively stable in the transmission,
It is the received data-signal current potential of controlling terminal in compensation power transmission real-time monitoring system, prevents data signal transmission process
In will appear decaying situation, the output end of a termination transport and placing device AR4 of capacitor C8 and one end of resistance R16, capacitor C8's is another
One end of termination capacitor C9 and one end of resistance R17, another terminating resistor R18 of capacitor C9, one end of resistance R19 and voltage-stabiliser tube
The cathode of D9, the plus earth of voltage-stabiliser tube D9, the other end of the other end resistance R16 of resistance R18 and one end of capacitor C10, electricity
Hinder the other end ground connection of R17, capacitor C10, another termination signal output port of resistance R19.
Embodiment three, on the basis of example 1, the signal frequency Acquisition Circuit select the letter of model SJ-ADC
The received frequency data signal of controlling terminal in number frequency collection device J1 acquisition power transmission real-time monitoring system, with diode
Signal clamper in 0-+5V, is prevented signal potential from crossing havoc circuit, while steady by the clamp circuit of D2, diode D3 composition
Pressure pipe D1 pressure stabilizing, the power supply termination capacitor C1 of signal frequency collector J1, one end of resistance R1 and power supply+5V and diode D2
Cathode, the ground terminal ground connection of signal frequency collector J1, the output termination capacitor C1 of signal frequency collector J1, resistance R1
One end of the other end and resistance R2, the cathode of another termination voltage-stabiliser tube D1 of resistance R2 and cathode, the diode D2 of diode D3
Anode and diode D4 anode, the plus earth of voltage-stabiliser tube D1, the plus earth of diode D3.
When the present invention is specifically used, a kind of power transmission real-time monitoring system, including signal frequency Acquisition Circuit, phase shift are anti-
Current feed circuit and frequency-selecting output circuit, the signal frequency Acquisition Circuit select the signal frequency collector J1 of model SJ-ADC to adopt
Collect the received frequency data signal of controlling terminal in power transmission real-time monitoring system, is formed with diode D2, diode D3
Clamp circuit by signal clamper in 0~+5V, the phase shift feed circuit use transport and placing device AR1 and resistance R5~resistance R8
And capacitor C3, capacitor C4 form phase-shift circuit adjustment signal pulse width, by adjusting capacitor C2, capacitor C4 and resistance R5
The adjustable phase-shift circuit output frequency size of size, wherein triode Q3 feedback signal to capacitor C3, capacitor C3 recharge-discharge
Process is the half period of signal, realizes the phase shift to signal, while transporting with inputting after triode Q1 and voltage-stabiliser tube D7 pressure stabilizing
It puts in device AR4 non-inverting input terminal, and with triode Q2 and capacitor C6 feedback signal to triode Q3 base stage, triode Q4 is anti-
Feedback signal is to triode Q3 emitter, and when signal potential is excessive, triode Q2 is connected at this time, and triode Q2 feedback signal makes two
At pole pipe D8 reverse phase conducting input triode Q3 base potential, triode voltage regulator circuit output amplitude is reduced, when signal electricity
When position is too low, triode Q4 conducting, triode Q4 feedback signal can be improved transport and placing device AR4 to triode Q3 emitter potential
Homophase input terminal potential has the function that raising transport and placing device AR4 output amplitude, and wherein capacitor C6 is shunt capacitance, is filtered out
The noise of high-frequency signal, capacitor C5 are decoupling capacitor, filter out the noise of low frequency signal, realize the fm role to signal, most
The frequency-selecting output circuit filters out single frequency with resistance R16- resistance R18 and capacitor C8- capacitor C10 composition frequency selection circuit afterwards
The output of rate signal that is to say the received data-signal current potential of controlling terminal in compensation power transmission real-time monitoring system.
The above is that further detailed description of the invention, and it cannot be said that the present invention in conjunction with specific embodiment
Specific implementation is limited only to this；Belonging to the present invention and for those skilled in the technology concerned, it is being based on skill of the present invention
Under the premise of art scheme thinking, it is made expansion and operating method, data replacement, should all fall in the scope of the present invention it
It is interior.
Claims (3)
1. a kind of power transmission real-time monitoring system, including signal frequency Acquisition Circuit, phase shift feed circuit and frequency-selecting output electricity
Road, which is characterized in that the signal frequency Acquisition Circuit selects the signal frequency collector J1 of model SJ-ADC to acquire electric power
The received frequency data signal of controlling terminal in real-time monitoring system is transmitted, the clamper formed with diode D2, diode D3
For circuit by signal clamper in 0~+5V, the phase shift feed circuit uses transport and placing device AR1 and resistance R5~resistance R8 and electricity
Hold C3, capacitor C4 and form phase-shift circuit adjustment signal pulse width, while being inputted after using triode Q1 and voltage-stabiliser tube D7 pressure stabilizing
In transport and placing device AR4 non-inverting input terminal, and use triode Q2 and capacitor C6 feedback signal to triode Q3 base stage, triode Q4
Feedback signal plays the role of adjusting phase-shift circuit output amplitude, the last frequency-selecting output to triode Q3 emitter
Circuit filters out single-frequency signals output with resistance R16- resistance R18 and capacitor C8- capacitor C10 composition frequency selection circuit,
It is the received data-signal current potential of controlling terminal in compensation power transmission real-time monitoring system；
The phase shift feed circuit includes transport and placing device AR1, one end of the homophase input termination capacitor C2 of transport and placing device AR1 and resistance R4
One end, the other end ground connection of capacitor C2, one end of the anti-phase input terminating resistor R3 of transport and placing device AR1, resistance R5, resistance R3's
The anode of another terminating diode D4, one end of the output terminating resistor R6 of transport and placing device AR1 and the anode of diode D8, resistance R6
The cathode of another terminating diode D4, the other end of one end of capacitor C3 and resistance R5, one end of resistance R7 and triode
The emitter of the collector of Q4, triode Q3, the other end of another termination capacitor C3 of resistance R7 and one end of resistance R8 and
The anode of diode D5, the cathode of diode D5 connect one end of capacitor C4 and the cathode of voltage-stabiliser tube D6, another termination of capacitor C4
Ground, the plus earth of voltage-stabiliser tube D6, the collector and resistance of the base stage of another termination triode Q3 of resistance R8, triode Q1
One end of R9, resistance R10, the other end of the collector connecting resistance R9 of triode Q3 and one end of resistance R11, resistance R11's is another
The cathode of the base stage of the other end of the base stage connecting resistance R10 of one termination power+5V, triode Q1 and triode Q2, voltage-stabiliser tube D7,
The plus earth of voltage-stabiliser tube D7, the emitter of triode Q1 connect triode Q2 collector and resistance R14, capacitor C7 one end with
And the non-inverting input terminal of transport and placing device AR4, the emitter of triode Q2 connect one end of capacitor C6, another terminating diode of capacitor C6
The cathode of D8, one end of another terminating resistor R13 of capacitor C7, the other end ground connection of resistance R13, the reverse phase of transport and placing device AR4 are defeated
Enter the base stage of termination capacitor C5, one end of resistance R12 and triode Q4, the other end of another terminating resistor R14 of capacitor C5, fortune
Put the other end of the output terminating resistor R12 of device AR4 and the emitter of triode Q4.
2. a kind of power transmission real-time monitoring system as described in claim 1, which is characterized in that the frequency-selecting output circuit includes
The output end of a termination transport and placing device AR4 of capacitor C8, capacitor C8 and one end of resistance R16, another termination capacitor C9 of capacitor C8
One end and resistance R17 one end, another terminating resistor R18, one end of resistance R19 and the cathode of voltage-stabiliser tube D9 of capacitor C9,
The plus earth of voltage-stabiliser tube D9, the other end of the other end resistance R16 of resistance R18 and one end of capacitor C10, resistance R17, capacitor
The other end of C10 is grounded, another termination signal output port of resistance R19.
3. a kind of power transmission real-time monitoring system as described in claim 1, which is characterized in that the signal frequency Acquisition Circuit
The power supply termination capacitor C1 of signal frequency collector J1 including model SJ-ADC, signal frequency collector J1, resistance R1
The cathode of one end and power supply+5V and diode D2, the ground terminal ground connection of signal frequency collector J1, signal frequency collector J1
Output termination capacitor C1, the other end of resistance R1 and one end of resistance R2, the cathode of another termination voltage-stabiliser tube D1 of resistance R2
With the anode of the cathode of diode D3, the anode of diode D2 and diode D4, the plus earth of voltage-stabiliser tube D1, diode D3's
Plus earth.
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| CN201910076045.XA CN109905088B (en) | 2019-01-26 | 2019-01-26 | Power transmission real-time monitoring system |
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| CN201910076045.XA CN109905088B (en) | 2019-01-26 | 2019-01-26 | Power transmission real-time monitoring system |
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| CN109905088B CN109905088B (en) | 2022-11-22 |
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| CN111817737A (en) * | 2020-07-30 | 2020-10-23 | 黄河水利职业技术学院 | Signal frequency control circuit of radio communication system |
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| CN109905088B (en) | 2022-11-22 |
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