CN111294026A - Sewage treatment monitored control system based on thing networking - Google Patents
Sewage treatment monitored control system based on thing networking Download PDFInfo
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- CN111294026A CN111294026A CN202010262788.9A CN202010262788A CN111294026A CN 111294026 A CN111294026 A CN 111294026A CN 202010262788 A CN202010262788 A CN 202010262788A CN 111294026 A CN111294026 A CN 111294026A
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Abstract
The invention discloses a sewage treatment monitoring system based on the Internet of things, which comprises a frequency acquisition module and an amplitude modulation separation module, wherein the frequency acquisition module adopts a frequency collector J1 with the model of SJ-ADC to acquire the carrier signal frequency of a data transmission channel in the sewage treatment monitoring system, the amplitude modulation separation module adopts an operational amplifier AR1 and an operational amplifier AR2 to form a power amplification circuit to amplify signals, simultaneously adopts a triode Q1, a triode Q2 and a resistor R7-resistor R9 to form an amplitude modulation circuit to adjust signal waveforms, then adopts a triode Q4, a resistor RW1 and a capacitor C5 to form a separation circuit to adjust the signals into signals with the same frequency and different amplitudes, the signals are different in the same frequency and different amplitudes compared with a triode Q1 collector signal, then adopts a thyristor Q3 to detect the potential difference of abnormal signals, adopts the operational amplifier AR3, a diode D3 and a diode D4 to form a peak circuit to screen peak signals, and then inputs the peak signals into an AR 89, the operational amplifier AR4 amplifies the collector signal of the transistor Q4 in phase and inputs the amplified signal into the terminal of the sewage treatment monitoring system.
Description
Technical Field
The invention relates to the technical field of Internet of things, in particular to a sewage treatment monitoring system based on the Internet of things.
Background
The Internet of things is an important component of a new generation of information technology and is also an important development stage of the 'information' era, the sewage treatment monitoring efficiency can be improved by combining bridge construction and sewage treatment, however, the Internet of things also causes the problem of data signal congestion on the basis of improving a sewage treatment monitoring area, along with the deepening of sewage treatment monitoring, data is more and more, the congestion phenomenon in the Internet of things data transmission is more frequent, the Internet of things data transmission channel needs to be detected in time, and the sewage treatment monitoring terminal can adjust the Internet of things data transmission channel in real time to change the receiving value of the Internet of things data transmission channel.
Disclosure of Invention
In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an internet of things based sewage treatment monitoring system, which can acquire and adjust the carrier signal frequency of a data transmission channel in the sewage treatment monitoring system, and convert the carrier signal frequency into a reference analysis signal of the internet of things based sewage treatment monitoring system.
The technical scheme includes that the sewage treatment monitoring system based on the Internet of things comprises a frequency acquisition module and an amplitude modulation separation module, wherein the frequency acquisition module acquires the carrier signal frequency of a data transmission channel in the sewage treatment monitoring system by using a frequency collector J1 with the model of SJ-ADC, the amplitude modulation separation module uses an operational amplifier AR1 and an operational amplifier AR2 to form a power amplification circuit to amplify signals, simultaneously uses a triode Q1, a triode Q2 and a resistor R7-resistor R9 to form an amplitude modulation circuit to adjust signal waveforms, then uses a triode Q4, a resistor RW1 and a capacitor C5 to form a separation circuit to adjust the signals into signals with the same frequency and different amplitudes, the signals are different in frequency and different amplitudes compared with a collector signal of the triode Q1, wherein the operational amplifier AR2 outputs signals, uses a diode D1 and a diode D2 to form a circuit to limit signal amplitude, and then uses a silicon controlled rectifier Q3 to detect abnormal potential difference signals, a peak value circuit consisting of an operational amplifier AR3, a diode D3 and a diode D4 is used for screening a peak value signal and then inputting the peak value signal into an inverting input end of the operational amplifier AR4, and the operational amplifier AR4 amplifies a collector signal of a triode Q4 in phase and then inputs the signal into a terminal of a sewage treatment monitoring system;
the AM separation module comprises an operational amplifier AR1, wherein the non-inverting input end of the operational amplifier AR1 is connected with one end of a resistor R3, a resistor R5 and a capacitor C5, the other end of the resistor R5 is connected with the other end of a capacitor C5, the inverting input end of the operational amplifier AR 5 is connected with one end of the resistor R5 and the inverting input end of the operational amplifier AR 5, the other end of the resistor R5 is grounded, the output end of the operational amplifier AR 5 is connected with the non-inverting input end of the operational amplifier AR 5 and the other end of the resistor R5, one end of the resistor R5 is connected with the non-inverting input end of the operational amplifier AR 5, the output end of the operational amplifier AR 5 is connected with the other end of the resistor R5, one end of the resistor R5-resistor R5, one end of a positive pole of a diode D5, the negative pole of the diode D5, the base of the resistor R5, the other end of the resistor R5, the collector of the triode Q5 and the collector of the triode Q5 are, One end of a capacitor C5, an emitter of the transistor Q2 is connected to one end of the capacitor C4, the other ends of the resistor R9 and the capacitor C9 are grounded, the other end of the resistor R9 is grounded, the other end of the capacitor C9 is connected to one end of the resistor R9, the other end of the resistor R9 is connected to a base of the transistor Q9 and one end of the resistor RW 9, a collector of the transistor Q9 is connected to one end of the resistor R9 and a non-inverting input end of the operational amplifier AR 9, the other ends of the resistor R9 and the resistor RW 9 are grounded, an emitter of the transistor Q9 is connected to one end of the resistor R9 and a +5V power supply, the other end of the resistor R9 is connected to a gate of the thyristor Q9, a source of the thyristor Q9 is connected to the non-inverting input end of the operational amplifier AR 9, an anode of the diode D9 and a cathode of the operational amplifier AR 9 are connected to one end of the resistor R9 and the output end of the operational amplifier R9, the other end of the resistor R15 is grounded, the other end of the resistor R16 is connected with the output end of the amplifier AR4 and one end of the resistor R17, and a signal of the other end of the resistor R17 is input into a sewage treatment monitoring system terminal.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages;
1. an operational amplifier AR1 and an operational amplifier AR2 are used for forming a power amplifier circuit to amplify signals, an operational amplifier AR1 and an operational amplifier AR2 are connected with an inverting input end to prevent oscillation of signals output by the operational amplifier AR2, a capacitor C3 plays a decoupling role, an amplitude modulation circuit is formed by a triode Q1, a triode Q2 and a resistor R7-a resistor R9 to adjust signal waveforms, the resistor R7-a resistor R9 are used for dividing the signals, the triode Q1 amplifies signal current, the triode Q2 plays a role in amplifying signal voltage to adjust the signal waveforms, then a separating circuit is formed by a triode Q4, a resistor RW1 and a capacitor C5 to adjust the signals to be signals with same frequency and different amplitude, when the capacitor C5 is charged, the triode Q4 is not conducted, namely, no signal flows into the non-phase input end of the operational amplifier AR4, when the capacitor C5 is discharged, the triode Q4 amplifies the signal voltage and inputs into the in-phase input end of the operational amplifier AR, meanwhile, the effect of adjusting the amplitude of the output signal of the triode Q4 is realized by adjusting the resistance value of the resistor RW 1;
2. the output signal of the operational amplifier AR2 uses a limiting circuit consisting of a diode D1 and a diode D2 to limit the amplitude of the signal, the silicon controlled Q3 is prevented from being broken through by too large signal, the silicon controlled Q3 detects abnormal signals, a peak circuit consisting of the operational amplifier AR3, a diode D3 and a diode D4 screens peak signals and then inputs the peak signals to the inverting input end of the operational amplifier AR4, the peak signals can be used for stabilizing the signals at the inverting input end of the operational amplifier AR4, namely further fine adjustment of the output signal of the operational amplifier AR4 is carried out, the operational amplifier AR4 amplifies the collector signals of the triode Q4 in phase and then inputs the collector signals into a sewage treatment monitoring system terminal, and the sewage treatment monitoring system is a reference analysis signal of the sewage treatment monitoring system based on the Internet of.
Drawings
FIG. 1 is a schematic diagram of an amplitude modulation separation module of a sewage treatment monitoring system based on the Internet of things.
FIG. 2 is a schematic diagram of a frequency acquisition module of the sewage treatment monitoring system based on the Internet of things.
Detailed Description
The foregoing and other aspects, features and advantages of the invention will be apparent from the following more particular description of embodiments of the invention, as illustrated in the accompanying drawings in which reference is made to figures 1-2. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
In the first embodiment, the sewage treatment monitoring system based on the internet of things comprises a frequency acquisition module and an amplitude modulation separation module, wherein the frequency acquisition module adopts a frequency collector J1 with the model of SJ-ADC to acquire the carrier signal frequency of a data transmission channel in the sewage treatment monitoring system, the amplitude modulation separation module adopts an operational amplifier AR1 and an operational amplifier AR2 to form a power amplification circuit to amplify signals, simultaneously adopts a triode Q1, a triode Q2 and a resistor R7-resistor R9 to form an amplitude modulation circuit to adjust signal waveforms, then adopts a triode Q4, a resistor RW1 and a capacitor C5 to form a separation circuit to adjust the signals into signals with the same frequency and different amplitudes, the signals are different in frequency and different amplitudes compared with a collector signal of the triode Q1, wherein the output signal of the operational amplifier AR2 adopts a diode D1 and a diode D2 to form an amplitude limiting circuit to limit signal amplitude, and then adopts a silicon controlled rectifier Q3 to detect abnormal potential, a peak value circuit consisting of an operational amplifier AR3, a diode D3 and a diode D4 is used for screening a peak value signal and then inputting the peak value signal into an inverting input end of the operational amplifier AR4, and the operational amplifier AR4 amplifies a collector signal of a triode Q4 in phase and then inputs the signal into a terminal of a sewage treatment monitoring system;
the amplitude modulation separation module utilizes an operational amplifier AR1 and an operational amplifier AR2 to form a power amplifier circuit to amplify signals, an operational amplifier AR1 and an operational amplifier AR2 are connected with an inverting input end to prevent oscillation of signals output by the operational amplifier AR2, a capacitor C3 plays a decoupling role, meanwhile, a triode Q1, a triode Q2 and a resistor R7-a resistor R9 are utilized to form an amplitude modulation circuit to adjust signal waveforms, the resistor R7-a resistor R9 are utilized to divide the signals, the triode Q1 amplifies signal current, the triode Q2 plays a role in amplifying signal voltage to adjust the signal waveforms, then a triode Q4, a RW1 and a capacitor C5 are utilized to form a separation circuit to adjust the signals into signals with different frequencies and different amplitudes, when the capacitor C5 is charged, the triode Q4 is not conducted, namely, no signal flows into the non-inverting input end of the operational amplifier AR4, when the capacitor C5 is discharged, the triode Q4 amplifies the signal voltage and inputs into the in-phase input end of the operational, meanwhile, the function of adjusting the amplitude of the output signal of the triode Q4 is realized by adjusting the resistance value of the resistor RW1, thereby realizing the effect that the signal of the non-inverting input end of the operational amplifier AR4 and the signal of the inverting input end of the operational amplifier AR4 have different frequency and amplitude, namely the signal has different frequency and amplitude compared with the signal of the collector electrode of the triode Q1, wherein, the output signal of the operational amplifier AR2 uses the diode D1 and the diode D2 to form a limiting circuit to limit the amplitude of the signal, prevent the signal from breaking through the controllable silicon Q3, the thyristor Q3 detects abnormal signals, a peak circuit consisting of the operational amplifier AR3, the diode D3 and the diode D4 screens peak signals and then inputs the peak signals to the inverting input end of the operational amplifier AR4, the peak signals can stabilize the inverting input end signals of the operational amplifier AR4, namely, the signals output by the operational amplifier AR4 are further finely adjusted, and the operational amplifier AR4 amplifies the collector signals of the triode Q4 in phase and then inputs the signals into a terminal of a sewage treatment monitoring system;
the specific structure of the AM separation module comprises a non-inverting input end of an operational amplifier AR1 connected with one end of a resistor R3, a resistor R5 and a capacitor C3, the other end of a resistor R3 connected with the other end of a capacitor C3, an inverting input end of an operational amplifier AR1 connected with one end of a resistor R1 and an inverting input end of an operational amplifier AR1, the other end of the resistor R1 connected with ground, an output end of the operational amplifier AR1 connected with the non-inverting input end of the operational amplifier AR1 and the other end of the resistor R1 and one end of the resistor R1, an output end of the operational amplifier AR1 connected with the other end of the resistor R1 and one end of the resistor R1-resistor R1, an anode of a diode D1, a cathode of the diode D1, a cathode of a diode D1, a base of the transistor Q1, a collector of the transistor Q1 and a drain of the thyristor Q1, an anode of the diode D1 connected with ground, a cathode of the transistor D1 and an, One end of a capacitor C5, an emitter of the transistor Q2 is connected to one end of the capacitor C4, the other ends of the resistor R9 and the capacitor C9 are grounded, the other end of the resistor R9 is grounded, the other end of the capacitor C9 is connected to one end of the resistor R9, the other end of the resistor R9 is connected to a base of the transistor Q9 and one end of the resistor RW 9, a collector of the transistor Q9 is connected to one end of the resistor R9 and a non-inverting input end of the operational amplifier AR 9, the other ends of the resistor R9 and the resistor RW 9 are grounded, an emitter of the transistor Q9 is connected to one end of the resistor R9 and a +5V power supply, the other end of the resistor R9 is connected to a gate of the thyristor Q9, a source of the thyristor Q9 is connected to the non-inverting input end of the operational amplifier AR 9, an anode of the diode D9 and a cathode of the operational amplifier AR 9 are connected to one end of the resistor R9 and the output end of the operational amplifier R9, the other end of the resistor R15 is grounded, the other end of the resistor R16 is connected with the output end of the amplifier AR4 and one end of the resistor R17, and a signal of the other end of the resistor R17 is input into a sewage treatment monitoring system terminal.
On the basis of the scheme, the frequency acquisition module comprises a frequency collector J1 of an SJ-ADC model, 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 one end of a resistor R1, the other end of the resistor R1 is connected with one ends of an inductor L1, a resistor R2 and a capacitor C1, the other end of the inductor L1 is connected with one end of the capacitor C2 and the other end of a capacitor C3, and the other ends of the resistor R2, the capacitor C1 and the capacitor C2 are grounded.
When the system is used specifically, the frequency acquisition module acquires the carrier signal frequency of a data transmission channel in the sewage treatment monitoring system by using a frequency collector J1 with the model of SJ-ADC, the amplitude modulation separation module uses an operational amplifier AR1 and an operational amplifier AR2 to form a power amplification circuit to amplify signals, the operational amplifier AR1 and the operational amplifier AR2 are connected with an inverting input end to prevent oscillation of signals output by the operational amplifier AR2, a capacitor C3 plays a decoupling role, a triode Q1, a triode Q2 and a resistor R7-resistor R9 are used to form an amplitude modulation circuit to adjust signal waveforms, the resistor R7-resistor R9 is used to divide the signals, the triode Q1 amplifies signal current, and the triode Q2 plays a role in amplifying signal voltage, so that the effect of adjusting the signal waveforms is realized, then, a triode Q4, a resistor RW1 and a capacitor C5 are used to form a separation circuit to adjust signals to be signals with same frequency and different amplitudes, when a capacitor C5 is charged, the triode Q4 is not conducted, namely, no signal flows into the in-phase input end of an operational amplifier AR4, when the capacitor C5 discharges, the triode Q4 amplifies the signal voltage and inputs the signal voltage into the in-phase input end of an operational amplifier AR4, and the effect of adjusting the amplitude of the output signal of the triode Q4 is realized by adjusting the resistance value of a resistor RW1, so that the effects of different amplitudes of the in-phase input end signal of the operational amplifier AR4 and the opposite-phase input end signal of the operational amplifier AR4 with the same frequency and different amplitudes are realized, namely, the signals are different amplitudes with the same frequency and different amplitudes compared with the collector signal of the triode Q1, wherein the amplitude limiting circuit limiting signal output by the operational amplifier AR2 uses a diode D1 and a diode D2 to form an amplitude, The diode D3 and the diode D4 form a peak circuit, peak signals are screened and then input into the inverting input end of the operational amplifier AR4, signals at the inverting input end of the operational amplifier AR4 can be stabilized by the peak signals, namely, signals output by the operational amplifier AR4 are further finely adjusted, and the operational amplifier AR4 amplifies collector signals of a triode Q4 in a same phase mode and then inputs the signals into a terminal of the sewage treatment monitoring system.
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 (2)
1. A sewage treatment monitoring system based on the Internet of things comprises a frequency acquisition module and an amplitude modulation separation module, and is characterized in that the frequency acquisition module acquires the carrier signal frequency of a data transmission channel in the sewage treatment monitoring system by using a frequency collector J1 with the model of SJ-ADC, the amplitude modulation separation module uses an operational amplifier AR1 and an operational amplifier AR2 to form a power amplification circuit to amplify signals, simultaneously uses a triode Q1, a triode Q2 and a resistor R7-resistor R9 to form an amplitude modulation circuit to adjust signal waveforms, then uses the triode Q4, a resistor RW1 and a capacitor C5 to form a separation circuit to adjust the signals into signals with the same frequency and different amplitudes, wherein the signals output by the operational amplifier AR2 use a diode D1 and a diode D2 to form an amplitude limiting circuit to limit the signal amplitude, and then uses a silicon controlled rectifier Q3 to detect abnormal potential difference, a peak value circuit consisting of an operational amplifier AR3, a diode D3 and a diode D4 is used for screening a peak value signal and then inputting the peak value signal into an inverting input end of the operational amplifier AR4, and the operational amplifier AR4 amplifies a collector signal of a triode Q4 in phase and then inputs the signal into a terminal of a sewage treatment monitoring system;
the AM separation module comprises an operational amplifier AR1, wherein the non-inverting input end of the operational amplifier AR1 is connected with one end of a resistor R3, a resistor R5 and a capacitor C5, the other end of the resistor R5 is connected with the other end of a capacitor C5, the inverting input end of the operational amplifier AR 5 is connected with one end of the resistor R5 and the inverting input end of the operational amplifier AR 5, the other end of the resistor R5 is grounded, the output end of the operational amplifier AR 5 is connected with the non-inverting input end of the operational amplifier AR 5 and the other end of the resistor R5, one end of the resistor R5 is connected with the non-inverting input end of the operational amplifier AR 5, the output end of the operational amplifier AR 5 is connected with the other end of the resistor R5, one end of the resistor R5-resistor R5, one end of a positive pole of a diode D5, the negative pole of the diode D5, the base of the resistor R5, the other end of the resistor R5, the collector of the triode Q5 and the collector of the triode Q5 are, One end of a capacitor C5, an emitter of the transistor Q2 is connected to one end of the capacitor C4, the other ends of the resistor R9 and the capacitor C9 are grounded, the other end of the resistor R9 is grounded, the other end of the capacitor C9 is connected to one end of the resistor R9, the other end of the resistor R9 is connected to a base of the transistor Q9 and one end of the resistor RW 9, a collector of the transistor Q9 is connected to one end of the resistor R9 and a non-inverting input end of the operational amplifier AR 9, the other ends of the resistor R9 and the resistor RW 9 are grounded, an emitter of the transistor Q9 is connected to one end of the resistor R9 and a +5V power supply, the other end of the resistor R9 is connected to a gate of the thyristor Q9, a source of the thyristor Q9 is connected to the non-inverting input end of the operational amplifier AR 9, an anode of the diode D9 and a cathode of the operational amplifier AR 9 are connected to one end of the resistor R9 and the output end of the operational amplifier R9, the other end of the resistor R15 is grounded, the other end of the resistor R16 is connected with the output end of the amplifier AR4 and one end of the resistor R17, and a signal of the other end of the resistor R17 is input into a sewage treatment monitoring system terminal.
2. The sewage treatment monitoring system based on the internet of things as claimed in claim 1, wherein the frequency acquisition module 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 the frequency collector J1 is grounded, an output end of the frequency collector J1 is connected with one end of a resistor R1, the other end of a resistor R1 is connected with one end of an inductor L1, a resistor R2 and a capacitor C1, the other end of the inductor L1 is connected with one end of a capacitor C2 and the other end of a capacitor C3, and the other ends of the resistor R2, the capacitor C1 and the capacitor C2 are grounded.
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| CN202010262788.9A CN111294026A (en) | 2020-04-07 | 2020-04-07 | Sewage treatment monitored control system based on thing networking |
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| CN112003568A (en) * | 2020-07-10 | 2020-11-27 | 郑州大学第一附属医院 | Intelligent nursing system for reproductive center |
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