CN110460796B - Industrial equipment operation monitoring signal regulating circuit - Google Patents
Industrial equipment operation monitoring signal regulating circuit Download PDFInfo
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- CN110460796B CN110460796B CN201910815769.1A CN201910815769A CN110460796B CN 110460796 B CN110460796 B CN 110460796B CN 201910815769 A CN201910815769 A CN 201910815769A CN 110460796 B CN110460796 B CN 110460796B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/10—Adaptations for transmission by electrical cable
- H04N7/102—Circuits therefor, e.g. noise reducers, equalisers, amplifiers
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Abstract
The invention discloses an industrial equipment operation monitoring signal regulating circuit, which comprises a frequency acquisition circuit, a separation switch circuit and a push-pull output circuit, wherein the frequency acquisition circuit acquires the frequency of an analog signal received by an industrial equipment operation monitoring control terminal, the separation switch circuit uses a triode Q5, a variable resistor RW1, a capacitor C4 and a capacitor C5 to form a synchronous separation circuit to divide the signal into two paths of signals with same frequency and different amplitudes, one path uses a capacitor C2, a capacitor C3, an inductor L4 and a triode Q1 to form a frequency modulation circuit to regulate the signal frequency, the other path uses a diode D1, a diode D2 and a capacitor C6 to form a noise reduction circuit to reduce the signal-to-noise ratio, finally, the push-pull output circuit uses a triode Q7 and a triode Q8 to form a push-pull circuit to prevent signal cross distortion, the signals are output after being stabilized by a voltage stabilizing tube D3, namely, the compensating signal for receiving, thereby overcoming the attenuation of high frequency components.
Description
Technical Field
The invention relates to the technical field of circuits, in particular to an industrial equipment operation monitoring signal adjusting circuit.
Background
At present, the application of the internet of things technology in industry mainly includes Manufacturing Execution System (MES), manufacturing supply chain management, production process optimization, product equipment monitoring management, environmental protection monitoring and energy management, safety production management, advanced manufacturing technology and other aspects, wherein the industrial equipment operation monitoring system still uses video baseband wired transmission due to cost consideration of some small and medium-sized factories, and the attenuation of high-frequency components of more than 300 meters is large, so that the image quality cannot be ensured, therefore, on the basis of ensuring the video baseband wired transmission, the analog signal receiving compensation and adjustment of the existing industrial equipment operation monitoring control terminal are required, and the attenuation of the high-frequency components is overcome.
Disclosure of Invention
In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an industrial equipment operation monitoring signal adjusting circuit, which has the characteristics of ingenious design and humanized design, and can compensate and calibrate the analog signal received by the industrial equipment operation monitoring control terminal.
The technical scheme for solving the problem is that the industrial equipment operation monitoring signal adjusting circuit comprises a frequency acquisition circuit, a separation switch circuit and a push-pull output circuit; the frequency acquisition circuit acquires the frequency of an analog signal received by an industrial equipment operation monitoring control terminal, a synchronous separation circuit is formed by a separating switch circuit through a triode Q5, a variable resistor RW1, a capacitor C4 and a capacitor C5 and divides the signal into two paths of signals with the same frequency and different amplitudes, a frequency modulation circuit is formed by a capacitor C2, a capacitor C3, an inductor L4 and a triode Q1 through one path to adjust the signal frequency, a noise reduction circuit is formed by a diode D1, a diode D2 and a capacitor C6 to reduce the signal noise ratio through the other path, a composite switch circuit is formed by a triode Q2, a triode Q3 and a triode Q4 to detect the difference of the two paths of signals, an operational amplifier AR3 is used to follow the signal, wherein the operational amplifier AR3 outputs the signal to the synchronous separation circuit through the triode Q6, the signal amplitude is further adjusted, and finally a push-pull output circuit is formed by a triode Q63, and the analog signals are output after being stabilized by a voltage stabilizing tube D3, namely compensation signals of the analog signals are received by the industrial equipment operation monitoring control terminal.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages;
1. a triode Q5, a variable resistor RW1, a capacitor C4 and a capacitor C5 are used for forming a synchronous separation circuit, the signal is divided into two paths of signals with the same frequency and different amplitudes, the amplitude ratio of divided voltage can be adjusted by adjusting the resistance value of the variable resistor RW1, a frequency modulation circuit is formed by the capacitor C2, the capacitor C3, an inductor L4 and the triode Q1 for adjusting the signal frequency, the triode Q1 is used for amplifying the signal, the capacitor C2 and the capacitor C3 are decoupling capacitors for filtering low-frequency signal noise, the capacitor C8 is a bypass capacitor for filtering high-frequency signal noise, and a noise reduction circuit is formed by the two paths of the signal, the diode D1, the diode D2 and the capacitor C6 for reducing the signal noise ratio;
2. a compound switch circuit consisting of a triode Q2, a triode Q3 and a triode Q4 is used for detecting two-way signal difference, meanwhile, the compound switch circuit can effectively widen the conduction voltage of the single triode, the amplitude condition of a source signal can be detected through the detection of signal potential difference, the precision of a compensation signal is ensured, an operational amplifier AR3 is used for following the signal to ensure the consistency of the signal, in order to further ensure the signal amplitude, the triode Q6 is used for feeding back the operational amplifier AR3 to output the signal to a synchronous separation circuit, the signal potential is further stabilized, a push-pull circuit consisting of a triode Q7 and a triode Q8 is used for preventing signal cross distortion, the signal is output after being stabilized by a voltage stabilizing tube D3, namely, the compensation signal of an analog signal is received by an industrial equipment operation monitoring control terminal, and the attenuation of a high-frequency.
Drawings
Fig. 1 is a circuit diagram of a disconnecting switch of an industrial equipment operation monitoring signal adjusting circuit according to the invention.
Fig. 2 is a circuit diagram of a frequency acquisition circuit of an industrial equipment operation monitoring signal adjusting circuit according to the present invention.
Fig. 3 is a circuit diagram of a push-pull output circuit of an industrial equipment operation monitoring signal adjusting circuit according to the present invention.
Detailed Description
The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying drawings of fig. 1 to 3. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
An industrial equipment operation monitoring signal regulating circuit comprises a frequency acquisition circuit, a separation switch circuit and a push-pull output circuit; the frequency acquisition circuit acquires the frequency of an analog signal received by an industrial equipment operation monitoring control terminal, a synchronous separation circuit is formed by a separating switch circuit through a triode Q5, a variable resistor RW1, a capacitor C4 and a capacitor C5 and divides the signal into two paths of signals with the same frequency and different amplitudes, a frequency modulation circuit is formed by a capacitor C2, a capacitor C3, an inductor L4 and a triode Q1 through one path to adjust the signal frequency, a noise reduction circuit is formed by a diode D1, a diode D2 and a capacitor C6 to reduce the signal noise ratio through the other path, a composite switch circuit is formed by a triode Q2, a triode Q3 and a triode Q4 to detect the difference of the two paths of signals, an operational amplifier AR3 is used to follow the signal, wherein the operational amplifier AR3 outputs the signal to the synchronous separation circuit through the triode Q6, the signal amplitude is further adjusted, and finally a push-pull output circuit is formed by a triode Q63, the analog signals are output after being stabilized by a voltage stabilizing tube D3, namely compensation signals of the analog signals are received by an industrial equipment operation monitoring control terminal;
the separation switch circuit uses a triode Q5, a variable resistor RW1, a capacitor C4 and a capacitor C5 to form a synchronous separation circuit to divide signals into two paths of signals with same frequency and different amplitudes, the amplitude ratio of divided voltage can be adjusted by adjusting the resistance value of the variable resistor RW1, one path uses a capacitor C2, a capacitor C3, an inductor L4 and a triode Q1 to form a frequency modulation circuit to adjust the signal frequency, the triode Q1 amplifies the signals, the capacitor C2 and the capacitor C3 are decoupling capacitors to filter low-frequency signal noise, the capacitor C8 is a bypass capacitor to filter high-frequency signal noise, the other path uses a diode D1, a diode D2 and a capacitor C6 to form a noise reduction circuit to reduce the signal noise ratio, the composite switch circuit is used for forming a triode Q2, the triode Q3 and the triode Q4 to detect the difference of the two paths of signals, and the composite switch circuit can effectively widen the conducting voltage of the single triode, the amplitude condition of a source signal can be detected, the precision of a compensation signal is ensured, the signal is followed by the operational amplifier AR3, the consistency of the signal is ensured, and in order to further ensure the amplitude of the signal, the triode Q6 is used for feeding back an output signal of the operational amplifier AR3 to the synchronous separation circuit to further stabilize the signal potential;
the base of a transistor Q1 is connected with an inductor L1, one end of a resistor R1 and one end of a capacitor C1, the capacitor C1 and one end of the capacitor C1 are grounded, the collector of the transistor Q1 is connected with a power supply +5V, the emitter of the transistor Q1 is connected with the other end of the capacitor C1 and one end of the capacitor C1, the other end of the resistor R1 is connected with the other end of the capacitor C1 and one end of the capacitor C1, one end of the resistor R1 and the collector of the transistor Q1, the other end of the inductor L1 is connected with the other end of the capacitor C1, the base of the transistor Q1 is connected with the other end of the resistor R1 and the collector of the transistor Q1, the emitter of the transistor Q1 is connected with one end of the resistor R1, the other end of the resistor R1 is connected with the base of the transistor R1, the base of the transistor Q1 and the other end of the capacitor C1, and the other end of the capacitor C1 are connected with the power supply +5V, and one end of the capacitor C, the other end of the resistor R6 is connected with the base of the transistor Q5 and one end of the variable resistor RW1, the collector of the transistor Q5 is connected with one end of the resistor R8 and the anode of the diode D1 and one end of the capacitor C6, the other end of the variable resistor RW1 and the other end of the resistor R8 are grounded, the cathode of the diode D1 is connected with the cathode of the diode D2, the anode of the diode D2 is connected with the other end of the capacitor C6 and the collector of the transistor Q4, the emitter of the transistor Q3 and the other end of the resistor R11 and the non-inverting input end of the operational amplifier AR3, the emitter of the transistor Q4 is connected with the other end of the resistor R7 and the base of the transistor Q7, the emitter of the transistor Q7 is connected with one end of the resistor R7 and the base of the transistor Q7, the other end of the resistor R7 is grounded, and the output end of.
On the basis of the scheme, the push-pull output circuit uses a triode Q7 and a triode Q8 to form a push-pull circuit to prevent signal cross distortion, the signal is output after being stabilized by a voltage stabilizing tube D3, namely, a compensation signal of an analog signal is received by an industrial equipment operation monitoring control terminal, the base of a triode Q7 is connected with the base of a triode Q8 and the output end of an operational amplifier AR3, the emitter of a triode Q7 is connected with the emitter of the triode Q8, one end of a resistor R10 and the negative electrode of a voltage stabilizing tube D3, the collector of the triode Q7 is connected with a power supply +5V, the collector of a triode Q8 is grounded, the positive electrode of the voltage stabilizing tube D3 is grounded, and the other end of the resistor R685;
the frequency acquisition circuit adopts a frequency collector J1 with the model of SJ-ADC to acquire the frequency of an analog signal received by an industrial equipment operation monitoring control terminal, a voltage stabilizing tube D4 stabilizes the voltage, a power supply end of a frequency collector J1 is connected with +5V, the grounding end of the frequency collector J1 is grounded, the output end of the frequency collector J1 is connected with the negative electrode of a voltage stabilizing tube D4 and one end of a resistor R1, the positive electrode of the voltage stabilizing tube D4 is grounded, the other end of the resistor R1 is connected with one end of a capacitor C1 and the base of a triode Q1, and the other end of the capacitor C1 is grounded.
The invention relates to a signal adjusting circuit for monitoring the operation of industrial equipment, which comprises a frequency acquisition circuit, a separation switch circuit and a push-pull output circuit, wherein the frequency acquisition circuit acquires the frequency of an analog signal received by an operation monitoring control terminal of the industrial equipment, the separation switch circuit uses a triode Q5, a variable resistor RW1, a capacitor C4 and a capacitor C5 to form a synchronous separation circuit to divide the signal into two paths of signals with same frequency and different amplitudes, the amplitude ratio of divided voltage can be adjusted by adjusting the resistance value of the variable resistor RW1, one path uses a capacitor C2, a capacitor C3, an inductor L4 and a triode Q1 to form a frequency modulation circuit to adjust the signal frequency, the triode Q1 amplifies the signal, the capacitor C2 and the capacitor C3 are decoupling capacitors to filter low-frequency signal noise, the capacitor C8 is a bypass capacitor to filter high-frequency signal noise, and the other path uses a diode D1, a diode D2 and a capacitor C6 to form, and a compound switch circuit consisting of a triode Q2, a triode Q3 and a triode Q4 is used for detecting two paths of signal differences, meanwhile, the compound switch circuit can effectively widen the conduction voltage of the single triode, the amplitude condition of a source signal can be detected through the detection of the signal potential difference, the precision of a compensation signal is ensured, an operational amplifier AR3 is used for following the signal to ensure the consistency of the signal, in order to further ensure the signal amplitude, the triode Q6 is used for feeding back the output signal of the operational amplifier AR3 to a synchronous separation circuit to further stabilize the signal potential, finally, a push-pull output circuit consists of a triode Q7 and a triode Q8 to prevent signal cross distortion, the output signal is stabilized by a voltage stabilizing tube D3 and is also output, namely, the compensation signal of an analog signal is received by an industrial equipment operation monitoring control terminal.
While the invention has been described in further detail with reference to specific embodiments thereof, it is not intended that the invention be limited to the specific embodiments thereof; for those skilled in the art to which the present invention pertains and related technologies, the extension, operation method and data replacement should fall within the protection scope of the present invention based on the technical solution of the present invention.
Claims (1)
1. An industrial equipment operation monitoring signal adjusting circuit comprises a frequency acquisition circuit, a separation switch circuit and a push-pull output circuit, and is characterized in that the frequency acquisition circuit acquires the frequency of an analog signal received by an industrial equipment operation monitoring control terminal, the separation switch circuit uses a triode Q5, a variable resistor RW1, a capacitor C4 and a capacitor C5 to form a synchronous separation circuit to divide the signal into two paths of signals with same frequency and different amplitudes, one path uses a capacitor C2, a capacitor C3, an inductor L4 and a triode Q1 to form a frequency modulation circuit to adjust the signal frequency, the other path uses a diode D1, a diode D2 and a capacitor C6 to form a noise reduction circuit to reduce the signal noise ratio, uses a triode Q2, a triode Q3 and a triode Q4 to form a composite switch circuit to detect the difference of the two paths of signals, an operational amplifier AR3 is used to follow the signal, wherein the triode Q6 feeds back the operational amplifier AR3 to output, further adjusting the amplitude of the signal, and finally forming a push-pull circuit by the push-pull output circuit through a triode Q7 and a triode Q8 to prevent signal cross distortion, and outputting the signal after voltage stabilization through a voltage stabilizing tube D3, namely receiving a compensation signal of an analog signal for an industrial equipment operation monitoring control terminal;
the separating switch circuit comprises a triode Q, the base electrode of the triode Q is connected with an inductor L, one end of a resistor R, one end of a capacitor C and one end of a capacitor C, the other end of the resistor R is grounded, the collector electrode of the triode Q is connected with a power supply of +5V, the emitter electrode of the triode Q is connected with the other end of the capacitor C, one end of the resistor R and the collector electrode of the triode Q, the other end of the resistor R is connected with the other end of the capacitor C, one end of the resistor R and the collector electrode of the triode Q, the other end of the inductor L is connected with the other end of the capacitor C, the base electrode of the triode Q is connected with the other end of the resistor R, the emitter electrode of the resistor R is connected with one end of the resistor R, the other end of the resistor R is connected with the emitter electrode of the triode Q, one end of the resistor R and, the other end of the resistor R6 is connected with the base of the triode Q5 and one end of the variable resistor RW1, the collector of the triode Q5 is connected with one end of the resistor R8 and the anode of the diode D1 and one end of the capacitor C6, the other end of the variable resistor RW1 and the other end of the resistor R8 are grounded, the cathode of the diode D1 is connected with the cathode of the diode D2, the anode of the diode D2 is connected with the other end of the capacitor C6 and the collector of the triode Q4, the emitter of the triode Q3 and the other end of the resistor R11, the non-inverting input end of the operational amplifier AR3, the emitter of the triode Q4 is connected with the other end of the resistor R7 and the base of the triode Q7, the emitter of the triode Q7 is connected with one end of the resistor R7 and the base of the triode Q7, the other end of the resistor R7 is grounded, and the output end of;
the push-pull output circuit comprises a triode Q7, the base of a triode Q7 is connected with the base of a triode Q8 and the output end of an operational amplifier AR3, the emitter of the triode Q7 is connected with the emitter of a triode Q8, one end of a resistor R10 and the negative electrode of a voltage regulator tube D3, the collector of the triode Q7 is connected with +5V of a power supply, the collector of the triode Q8 is grounded, the positive electrode of the voltage regulator tube D3 is grounded, and the other end of the resistor R10 is connected with a signal output port;
the frequency acquisition circuit comprises a frequency collector J1 with the model of SJ-ADC, a power supply end of a frequency collector J1 is connected with +5V, a grounding end of a frequency collector J1 is grounded, an output end of the frequency collector J1 is connected with a negative electrode of a voltage regulator tube D4 and one end of a resistor R1, a positive electrode of the voltage regulator tube D4 is grounded, the other end of the resistor R1 is connected with one end of a capacitor C1 and a base electrode of a triode Q1, and the other end of the capacitor C1 is grounded.
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Denomination of invention: A Signal Regulating Circuit for Monitoring the Operation of Industrial Equipment Effective date of registration: 20230310 Granted publication date: 20210427 Pledgee: China Co. truction Bank Corp Beijing Zhongguancun branch Pledgor: BEIJING ZHONGRUIHENG SCIENCE & TECHNOLOGY CO.,LTD. Registration number: Y2023110000092 |
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