CN110266407B - Data security protection system based on cloud computing - Google Patents
Data security protection system based on cloud computing Download PDFInfo
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- CN110266407B CN110266407B CN201910568781.7A CN201910568781A CN110266407B CN 110266407 B CN110266407 B CN 110266407B CN 201910568781 A CN201910568781 A CN 201910568781A CN 110266407 B CN110266407 B CN 110266407B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/27—Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/602—Providing cryptographic facilities or services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
Abstract
The invention discloses a data safety protection system based on cloud computing, which comprises a frequency acquisition circuit 1, a frequency acquisition circuit 2, a noise reduction differential circuit and an operational amplifier transmitting circuit, wherein the frequency acquisition circuit 1 and the frequency acquisition circuit 2 respectively acquire the signal frequencies of an input end and an output end in a signal transmission channel in a signal transmission module, the feedback calibration circuit utilizes an operational amplifier AR1 to amplify the signals output by the frequency acquisition circuit 1 in phase, simultaneously utilizes an operational amplifier AR3 and a capacitor C2-capacitor C5 to form a noise reduction circuit to limit the waves of the signals, and finally utilizes the operational amplifier AR2, the operational amplifier AR4 and the operational amplifier AR5 to form a differential amplification circuit to carry out differential processing on the signals, wherein a triode Q4 feeds back and adjusts the amplitude of the signals output by the operational amplifier AR4, and finally utilizes the operational amplifier AR6 to amplify the signals in phase by the operational amplifier transmitting circuit, namely the signals are transmitted to a control terminal by a signal transmitter E1, and are error correction signals of the control terminal in the data, the accuracy of the error correction signal is ensured.
Description
Technical Field
The invention relates to the technical field of circuits, in particular to a data security protection system based on cloud computing.
Background
At present, a data security protection system based on cloud computing mainly comprises a control terminal, a signal transmission module, a data processing module and a cloud end, wherein the data processing module processes and modulates data information, the data information is sent to the cloud end through the signal transmission module, the cloud end and the control terminal exchange information through the signal transmission module, and signals in a signal transmission channel where the cloud end and the control terminal exchange information easily encounter same-frequency signal interference in a long-distance transmission process, so that harmonic waves appear in the signals, and further the error of the signals received by the control terminal is large.
Disclosure of Invention
In view of the above situation, in order to overcome the defects of the prior art, the present invention aims to provide a data security protection system based on cloud computing, which has the characteristics of ingenious conception and humanized design, can monitor the signal frequency at the input end of a signal transmission channel in real time, and automatically calibrate and convert the signal into an error correction signal of a control terminal of the data security protection system based on cloud computing.
The technical scheme for solving the problem is that the data safety protection system based on cloud computing comprises a control terminal, a signal transmission module, a data processing module and a cloud end, wherein the data processing module processes and modulates data information and sends the data information to the cloud end through the signal transmission module, and the cloud end and the control terminal exchange information through the signal transmission module and comprise a frequency acquisition circuit 1, a frequency acquisition circuit 2, a noise reduction differential circuit and an operational amplifier transmitting circuit;
the frequency acquisition circuit 1 and the frequency acquisition circuit 2 respectively acquire the signal frequency of an input end and an output end in a signal transmission channel in a signal transmission module, the noise reduction differential circuit utilizes an operational amplifier AR1 to amplify the output signal of the frequency acquisition circuit 1 in phase, simultaneously utilizes an operational amplifier AR3 and a capacitor C2-a capacitor C5 to form a noise reduction circuit to limit the wave of the signal, the signal noise is reduced and then input into the in-phase input end of the operational amplifier AR2, utilizes a triode Q1 and a voltage stabilizing tube D2 to form a constant current source circuit to stabilize the output signal of the frequency acquisition circuit 2, utilizes a triode Q2 and a triode Q3 to form a push-pull circuit to reduce the conduction loss of the signal, utilizes a limiting circuit formed by a diode D4 and a diode D5 to limit the signal and then input into the reverse phase input end of the operational amplifier AR5, and finally utilizes an operational amplifier AR2, an operational amplifier AR 38, the triode Q4 feeds back and adjusts the amplitude of the output signal of the operational amplifier AR4, and finally the operational amplifier transmitting circuit amplifies the signal in phase by using the operational amplifier AR6 and sends the amplified signal to the control terminal through the signal transmitter E1, namely the error correction signal of the control terminal in the data security protection system based on cloud computing.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages;
1. an operational amplifier AR1 is used for amplifying signals output by the frequency acquisition circuit 1 in phase, the power of the signals is amplified, one path is the collector potential of a triode Q1, the other path is the noise reduction circuit consisting of an operational amplifier AR3 and a capacitor C2-a capacitor C5 for limiting the waves of the signals, a wave limiting circuit consisting of a resistor R10-a resistor R12 and a capacitor C4-a capacitor C5 for filtering abnormal frequency signals, the operational amplifier AR3 is used for amplifying the signals to reduce the signal noise, the signals are input into the in-phase input end of the operational amplifier AR2 after the signal noise is reduced, a triode Q1 and a voltage stabilizing tube D2 are used for stabilizing the output signals of the frequency acquisition circuit 2 by a constant current source circuit, a triode Q1 is used for controlling the potential difference between the output signals of the frequency acquisition circuit 2 and the output signals of the operational amplifier AR1, when the potential difference between the two is too large, a triode Q1 is conducted to amplify the signals, the triode Q2 and the triode Q3 form a push-pull circuit to reduce signal conduction loss, and the amplitude limiting circuit formed by the diode D4 and the diode D5 limits signals and then inputs the signals into the reverse-phase input end of the operational amplifier AR5, so that the circuit is protected, and great practical value is achieved.
2. The operational amplifier AR2, the operational amplifier AR4 and the operational amplifier AR5 form a differential amplifying circuit for carrying out differential processing on signals, stabilizing the static working point of the signals, the potential value of the output signal of the differential amplification circuit can be adjusted by adjusting the resistance value of the variable resistor RW1, in order to further ensure the accuracy of the error correction signal, a triode Q4 is used for detecting the potential difference of output signals of an operational amplifier AR2 and an operational amplifier AR4, a feedback signal is fed to the inverting input end of the operational amplifier AR2, the amplitude of the output signal of the operational amplifier AR4 is adjusted, finally an operational amplifier AR6 in-phase amplification signal is applied and sent to a control terminal through a signal transmitter E1, namely the error correction signal of the control terminal in the data safety protection system based on cloud computing, the signal trigger control terminal corrects the received signal in time, and the automatic calibration of the signal is realized by adopting the above mode, so that the accuracy of the error correction signal is ensured.
Drawings
Fig. 1 is a schematic circuit diagram of a data security protection system based on cloud computing according to the present invention.
Detailed Description
The foregoing and other technical and scientific aspects, features and utilities 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. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
The cloud computing-based data security protection system comprises a control terminal, a signal transmission module, a data processing module and a cloud, wherein the data processing module processes and modulates data information, the data information is sent to the cloud through the signal transmission module, the cloud and the control terminal exchange information through the signal transmission module, the cloud and the control terminal comprise a frequency acquisition circuit 1, a frequency acquisition circuit 2, a noise reduction differential circuit and an operational amplifier transmitting circuit, the frequency acquisition circuit 1 and the frequency acquisition circuit 2 respectively acquire signal frequencies of an input end and an output end in a signal transmission channel in the signal transmission module, the noise reduction differential circuit utilizes an operational amplifier AR1 to amplify an output signal of the frequency acquisition circuit 1 in a same phase, meanwhile, the operational amplifier AR3 and a capacitor C2-capacitor C5 are utilized to form a noise reduction circuit to limit a signal wave, the signal noise is reduced and then input into the same phase input end of the operational amplifier AR2, and a constant current source circuit composed of a triode Q1 and a voltage regulator D2 is utilized Meanwhile, a push-pull circuit consisting of a triode Q2 and a triode Q3 is used for reducing signal conduction loss, a limiting circuit consisting of a diode D4 and a diode D5 limits signals and then inputs the signals into an inverting input end of an operational amplifier AR5, and finally a differential amplification circuit consisting of an operational amplifier AR2, an operational amplifier AR4 and an operational amplifier AR5 carries out differential processing on the signals, wherein the triode Q4 feeds back and adjusts the amplitude of signals output by the operational amplifier AR4, and finally an operational amplifier transmitting circuit uses an operational amplifier AR6 to amplify the signals in phase and sends the signals to a control terminal through a signal transmitter E1, namely an error correction signal of the control terminal in the data safety protection system based on cloud computing;
the noise reduction differential circuit utilizes an operational amplifier AR1 to amplify signals output by the frequency acquisition circuit 1 in phase and amplify signal power, one path is the collector potential of a triode Q1, the other path utilizes an operational amplifier AR3 and a capacitor C2-a capacitor C5 to form a noise reduction circuit to limit waves of the signals, a resistor R10-a resistor R12 and a capacitor C4-a capacitor C5 are utilized to form a wave limiting circuit to filter abnormal frequency signals, the operational amplifier AR3 is utilized to amplify the signals to reduce signal noise, the signals are input into the in-phase input end of the operational amplifier AR2 after the signal noise is reduced, a triode Q1 and a voltage stabilizing tube D2 are utilized to form a constant current source circuit to stabilize the output signals of the frequency acquisition circuit 2, a triode Q1 is used for controlling the potential difference between the output signals of the frequency acquisition circuit 2 and the output signals of the operational amplifier AR1, when the potential difference between the two is too large, a triode Q1, the signal potential in the output push-pull circuit is low, the triode Q2 and the triode Q3 form a push-pull circuit to reduce the signal conduction loss, the limiting circuit formed by the diode D4 and the diode D5 limits the signal and then inputs the signal into the inverting input end of the operational amplifier AR5 to play a role of protecting the circuit, finally the operational amplifier AR2, the operational amplifier AR4 and the operational amplifier AR5 form a differential amplification circuit to carry out differential processing on the signal and stabilize the static working point of the signal, the potential value of the output signal of the differential amplification circuit can be adjusted by adjusting the resistance value of the variable resistor RW1, in order to further ensure the accuracy of the error correction signal, the triode Q4 is used for detecting the potential difference of the output signals of the operational amplifier AR2 and the operational amplifier AR4, feeding back a signal to the inverting input end of the operational amplifier AR2, and adjusting the amplitude of the output signal of the operational amplifier AR 4;
the noise reduction differential circuit has a specific structure that a non-inverting input end of an operational amplifier AR1 is connected with one end of a resistor R2, an inverting input end of an operational amplifier AR1 is connected with one end of a resistor R3, the other end of the resistor R3 is grounded, an output end of the operational amplifier AR3 is connected with the other end of the resistor R3 and one end of the resistor R3, the resistor R3 and one end of a capacitor C3, the other end of the capacitor C3 is connected with one end of the resistor R3, the other end of the resistor R3 is connected with the other end of the resistor R3 and one end of the resistor R3, one end of the capacitor C3 and the non-inverting input end of the operational amplifier AR3, the other end of the resistor R3 is grounded, the other end of the resistor R3 and one end of the resistor R3 are connected with one end of the capacitor C3 and one end of the inverting input end of the resistor R3, the inverting input end of the operational amplifier AR3 is grounded, the other end of the resistor R14 is connected to the non-inverting input terminal of the amplifier AR2, the other end of the resistor R6 is connected to the collector of the transistor Q1, the base of the transistor Q1 is connected to one end of the resistor R1 and the negative electrode of the voltage regulator D1, the emitter of the transistor Q1 is connected to one end of the resistor R1, the other end of the resistor R1 is connected to the ground, the power supply +5V and the base of the transistor Q1, the collector of the transistor Q1 is connected to the power supply +5V, the emitter of the transistor Q1 is connected to the cathode of the transistor Q1 and the negative electrode of the diode D1, the anode of the diode D1 is connected to the ground, the anode of the diode D1 is connected to the negative electrode of the operational amplifier AR1, the output terminal of the operational amplifier 1 is connected to one end of the resistor R1, the inverting input terminal of the operational amplifier R1 and the inverting input terminal of the variable resistor R1, the variable contact of the operational amplifier AR1, and the variable contact RW1, One end of a resistor R19 and the inverting input end of an operational amplifier AR2, the output end of the operational amplifier AR2 is connected with the collector of the triode Q4, one end of a resistor R18 and the other end of a resistor R19, the other end of the resistor R18 is connected with the inverting input end of the operational amplifier AR4, the non-inverting input end of the operational amplifier AR4 is connected with the other end of a resistor R16 and one end of a resistor R17, the other end of the resistor R17 is grounded, and the output end of the operational amplifier AR4 is connected with the base of the triode Q4.
In the second embodiment, on the basis of the first embodiment, the operational amplifier transmitting circuit uses an operational amplifier AR6 to amplify signals in phase, and sends the amplified signals to a control terminal through a signal transmitter E1, that is, to trigger the control terminal to correct errors in time of received signals through the signals, the in-phase input end of the operational amplifier AR6 is connected to the output end of the operational amplifier AR4 and one end of a resistor R20, the inverting input end of the operational amplifier AR6 is connected to one end of a resistor R21, the other end of the resistor R21 is grounded, the output end of the operational amplifier AR6 is connected to the other end of a resistor R20 and one end of a resistor R22, and the other end of the resistor R22 is connected to the signal transmitter E1.
In a third embodiment, on the basis of the first embodiment, the frequency acquisition circuit 1 and the frequency acquisition circuit 2 select a frequency collector with the model of SJ-ADC to respectively acquire the signal frequencies of the input end and the output end in the signal transmission channel of the signal transmission module, the frequency acquisition circuit 1 selects a frequency collector J1 with the model of SJ-ADC, the frequency acquisition circuit 2 selects a frequency collector J2 with the model of SJ-ADC, a power supply end of the 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 a negative electrode of a voltage regulator D3 and one end of a resistor R1, a positive electrode of the voltage regulator D3 is grounded, the other end of the resistor 387r 1 is connected with one end of a capacitor C1 and a non-inverting input end of an operational amplifier AR1, and the other end of the; the power supply end of the frequency collector J2 is connected with +5V of a power supply, the grounding end of the frequency collector J2 is grounded, the output end of the frequency collector J2 is connected with the negative electrode of a voltage regulator tube D1 and one end of a resistor R7, the positive electrode of a voltage regulator tube D1 is grounded, the other end of a resistor R7 is connected with one end of a capacitor C6 and the base electrode of a triode Q1, and the other end of the capacitor C6 is grounded.
When the invention is used in detail, the data safety protection system based on cloud computing comprises a control terminal, a signal transmission module, a data processing module and a cloud end, wherein the data processing module processes and modulates data information, the data information is transmitted to the cloud end through the signal transmission module, the cloud end and the control terminal exchange information through the signal transmission module, the data safety protection system comprises a frequency acquisition circuit 1, a frequency acquisition circuit 2, a noise reduction differential circuit and an operational amplifier transmitting circuit, the frequency acquisition circuit 1 and the frequency acquisition circuit 2 respectively acquire signal frequencies of an input end and an output end in a signal transmission channel in the signal transmission module, the noise reduction differential circuit amplifies signals output by the frequency acquisition circuit 1 in phase by using an operational amplifier AR1, amplifies signal power, one path is a triode Q1 collector electrode potential, and the other path forms a noise reduction circuit to limit waves for the signals by using the operational amplifier AR3 and a capacitor C2-C5, a wave limiting circuit consisting of a resistor R10, a resistor R12 and a capacitor C4, a capacitor C5 is used for filtering abnormal frequency signals, an operational amplifier AR3 is used for amplifying signals, the effect of reducing signal noise is achieved, the signals are input into the non-inverting input end of the operational amplifier AR2 after the noise is reduced, a constant current source circuit consisting of a triode Q1 and a voltage stabilizing tube D2 is used for stabilizing the output signals of the frequency acquisition circuit 2, a triode Q1 is used for controlling the potential difference of the output signals of the frequency acquisition circuit 2 and the output signals of the operational amplifier AR1, when the potential difference between the output signals is too large, a triode Q1 is conducted and amplifies the signals, on the contrary, a triode Q1 is not conducted, the signal potential in an output push-pull circuit is low, a push-pull circuit consisting of a triode Q2 and a triode Q3 is used for reducing the signal conduction loss, a limiting circuit consisting of a diode D4 and a diode D36, finally, the operational amplifier AR2, the operational amplifier AR4 and the operational amplifier AR5 form a differential amplification circuit for carrying out differential processing on signals, a signal static working point is stabilized, the potential value of the output signals of the differential amplification circuit can be adjusted by adjusting the resistance value of the variable resistor RW1, in order to further ensure the accuracy of an error correction signal, the potential difference of the output signals of the operational amplifier AR2 and the operational amplifier AR4 is detected by using a triode Q4, a signal is fed back to the inverting input end of the operational amplifier AR2, the amplitude of the output signal of the operational amplifier AR4 is adjusted, automatic calibration of the signals is realized by adopting the mode, the accuracy of the error correction signal is ensured, finally, the operational amplifier transmitting circuit uses the operational amplifier AR6 to amplify the signals in phase, and sends the amplified signals to a control terminal through a signal transmitter E1, namely, the error correction signal is the error correction signal of the 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 (3)
1. A data security protection system based on cloud computing comprises a control terminal, a signal transmission module, a data processing module and a cloud end, wherein the data processing module processes and modulates data information and sends the data information to the cloud end through the signal transmission module, and the cloud end and the control terminal exchange information through the signal transmission module;
the frequency acquisition circuit 1 and the frequency acquisition circuit 2 respectively acquire the signal frequency of an input end and an output end in a signal transmission channel in a signal transmission module, the noise reduction differential circuit utilizes an operational amplifier AR1 to amplify the output signal of the frequency acquisition circuit 1 in phase, simultaneously utilizes an operational amplifier AR3 and a capacitor C2-a capacitor C5 to form a noise reduction circuit to limit the wave of the signal, the signal noise is reduced and then input into the in-phase input end of the operational amplifier AR2, utilizes a triode Q1 and a voltage stabilizing tube D2 to form a constant current source circuit to stabilize the output signal of the frequency acquisition circuit 2, utilizes a triode Q2 and a triode Q3 to form a push-pull circuit to reduce the conduction loss of the signal, utilizes a limiting circuit formed by a diode D4 and a diode D5 to limit the signal and then input into the reverse phase input end of the operational amplifier AR5, and finally utilizes an operational amplifier AR2, an operational amplifier AR 38, the triode Q4 feeds back and adjusts the amplitude of a signal output by the operational amplifier AR4, and finally the operational amplifier transmitting circuit amplifies the signal in phase by using the operational amplifier AR6 and sends the amplified signal to the control terminal through the signal transmitter E1, namely an error correction signal of the control terminal in the data security protection system based on cloud computing;
the noise reduction differential circuit comprises an operational amplifier AR1, wherein a non-inverting input end of the operational amplifier AR1 is connected with one end of a resistor R1, an inverting input end of the operational amplifier AR1 is connected with one end of the resistor R1, the other end of the resistor R1 is grounded, an output end of the operational amplifier AR1 is connected with the other end of the resistor R1 and one end of the resistor R1, the resistor R1 and one end of a capacitor C1, the other end of the capacitor C1 is connected with one end of the resistor R1, the other end of the resistor R1 is connected with the other end of the resistor R1 and one end of the resistor R1, one end of the capacitor C1 and the non-inverting input end of the operational amplifier AR1 are grounded, the other end of the resistor R1 is connected with one end of the other capacitor R1 and one end of the capacitor C1, the other end of the resistor R1 is connected with the ground, and the inverting input end of the operational amplifier AR1 is grounded, the other end of the resistor R14 is connected to the non-inverting input terminal of the amplifier AR2, the other end of the resistor R6 is connected to the collector of the transistor Q1, the base of the transistor Q1 is connected to one end of the resistor R1 and the negative electrode of the voltage regulator D1, the emitter of the transistor Q1 is connected to one end of the resistor R1, the other end of the resistor R1 is connected to the ground, the power supply +5V and the base of the transistor Q1, the collector of the transistor Q1 is connected to the power supply +5V, the emitter of the transistor Q1 is connected to the cathode of the transistor Q1 and the negative electrode of the diode D1, the anode of the diode D1 is connected to the ground, the anode of the diode D1 is connected to the negative electrode of the operational amplifier AR1, the output terminal of the operational amplifier 1 is connected to one end of the resistor R1, the inverting input terminal of the operational amplifier R1 and the inverting input terminal of the variable resistor R1, the variable contact of the operational amplifier AR1, and the variable contact RW1, One end of a resistor R19 and the inverting input end of an operational amplifier AR2, the output end of the operational amplifier AR2 is connected with the collector of the triode Q4, one end of a resistor R18 and the other end of a resistor R19, the other end of the resistor R18 is connected with the inverting input end of the operational amplifier AR4, the non-inverting input end of the operational amplifier AR4 is connected with the other end of a resistor R16 and one end of a resistor R17, the other end of the resistor R17 is grounded, and the output end of the operational amplifier AR4 is connected with the base of the triode Q4.
2. The cloud computing-based data security protection system as claimed in claim 1, wherein the operational amplifier transmitting circuit includes an operational amplifier AR6, a non-inverting input terminal of the operational amplifier AR6 is connected to an output terminal of the operational amplifier AR4 and one terminal of a resistor R20, an inverting input terminal of the operational amplifier AR6 is connected to one terminal of a resistor R21, the other terminal of the resistor R21 is grounded, an output terminal of the operational amplifier AR6 is connected to the other terminal of the resistor R20 and one terminal of a resistor R22, and the other terminal of the resistor R22 is connected to the signal transmitter E1.
3. The data security protection system based on the cloud computing as claimed in claim 1, wherein the frequency acquisition circuit 1 comprises a frequency collector J1 with model number 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 cathode of a voltage regulator tube D3 and one end of a resistor R1, an anode of the voltage regulator tube D3 is grounded, the other end of the resistor R1 is connected with one end of a capacitor C1 and a non-inverting input end of an operational amplifier AR1, and the other end of the capacitor C1 is grounded;
the frequency acquisition circuit 2 comprises a frequency collector J2 with the model of SJ-ADC, a power supply end of a frequency collector J2 is connected with +5V, a grounding end of a frequency collector J2 is grounded, an output end of the frequency collector J2 is connected with a negative electrode of a voltage regulator tube D1 and one end of a resistor R7, a positive electrode of the voltage regulator tube D1 is grounded, the other end of the resistor R7 is connected with one end of a capacitor C6 and a base electrode of a triode Q1, and the other end of the capacitor C6 is grounded.
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| CN110736890B (en) * | 2019-10-31 | 2021-07-20 | 国网河南省电力公司信息通信公司 | Power distribution network data safety early warning system |
| CN110971229B (en) * | 2019-12-26 | 2020-08-25 | 郑州科技学院 | Electronic signal calibration system |
| CN111030609A (en) * | 2020-01-10 | 2020-04-17 | 南阳理工学院 | Cloud computing network signal adjusting device |
| CN111181513B (en) * | 2020-02-29 | 2023-02-21 | 国网河南省电力公司信息通信公司 | Data security transmission circuit |
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| CN111245456B (en) * | 2020-03-01 | 2020-10-02 | 北京瞭望神州科技有限公司 | Service management system based on big data |
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| CN108039981A (en) * | 2017-11-03 | 2018-05-15 | 黄河科技学院 | The Internet of Things signal frequency detection circuit of internet of things home appliance |
| CN109745635A (en) * | 2019-02-18 | 2019-05-14 | 河南中医药大学 | Ultrasonic signal processing unit |
| CN109889795A (en) * | 2019-04-17 | 2019-06-14 | 冯芊雅 | A kind of domestic video monitoring system |
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