CN110376989B - Industrial control system based on big data - Google Patents
Industrial control system based on big data Download PDFInfo
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- CN110376989B CN110376989B CN201910659268.9A CN201910659268A CN110376989B CN 110376989 B CN110376989 B CN 110376989B CN 201910659268 A CN201910659268 A CN 201910659268A CN 110376989 B CN110376989 B CN 110376989B
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- 239000003990 capacitor Substances 0.000 claims abstract description 77
- 230000009123 feedback regulation Effects 0.000 claims abstract description 15
- 230000008054 signal transmission Effects 0.000 claims description 16
- 230000002159 abnormal effect Effects 0.000 claims description 9
- 230000003321 amplification Effects 0.000 claims 1
- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/4183—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by data acquisition, e.g. workpiece identification
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/31—From computer integrated manufacturing till monitoring
- G05B2219/31177—Protocol, sdlc serial data link control
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The invention discloses an industrial control system based on big data, which comprises a frequency acquisition circuit, a feedback regulation circuit and a noise reduction output circuit, the frequency acquisition circuit acquires the frequency of the analog signal modulated by the data server in the industrial control system by using a frequency acquisition device with the model of SJ-ADC, the feedback adjusting circuit utilizes an operational amplifier AR1, an operational amplifier AR3, a capacitor C2 and a capacitor C3 to form a filter circuit to filter disturbance signals in signals, finally a noise reduction output circuit receives output signals of the feedback adjusting circuit, utilizes the operational amplifier AR2 to amplify the signals in phase, meanwhile, a noise reduction circuit is formed by the diode D7, the diode D8 and the capacitor C4, the noise of signals is reduced, the signals are output, the modulated signal frequency sent by the data server can be monitored in real time, and the signals are converted into correction signals for the control terminal to receive the signals of the data server after being adjusted.
Description
Technical Field
The invention relates to the technical field of circuits, in particular to an industrial control system based on big data.
Background
At present, an industrial control system based on big data comprises a control terminal, a data server, a signal transmission module and an information acquisition module, wherein the data server receives information of the information acquisition module through the signal transmission module, meanwhile, the control terminal receives the information of the data server through the signal transmission module, receives the signal and sends a control instruction to regulate and control the industrial working equipment, the data server modulates the data signal and then sends the data signal to the control terminal through the signal transmission module, because the signal will be attenuated and interfered in the long-distance transmission process, the frequency of the modulated signal sent by the data server and the analog signal received by the control terminal before demodulation has errors which can be ignored when the errors are small, however, when the error is large, the signal received by the control terminal is directly distorted, and the performance of the industrial control system based on the big data is seriously affected.
Disclosure of Invention
In view of the above situation, to overcome the defects in the prior art, the present invention aims to provide an industrial control system based on big data, which has the characteristics of ingenious conception and humanized design, and can monitor the frequency of a signal sent and modulated by a data server in real time, and convert the signal after being adjusted into a correction signal for a control terminal to receive the signal of the data server.
The technical scheme includes that the industrial control system based on the big data comprises a control terminal, a data server, a signal transmission module and an information acquisition module, wherein the data server receives information of the information acquisition module through the signal transmission module, the control terminal receives information of the data server through the signal transmission module, the control terminal receives signals and sends control instructions to regulate and control industrial working equipment, the industrial control system further comprises a frequency acquisition circuit, a feedback regulation circuit and a noise reduction output circuit, the frequency acquisition circuit acquires analog signal frequency modulated by the data server in the industrial control system by using a frequency acquisition device with the model of SJ-ADC, the feedback regulation circuit filters disturbance signals in the signals by using a filter circuit consisting of an operational amplifier AR1, an operational amplifier AR3, a capacitor C2 and a capacitor C3, and a switching circuit consisting of a triode Q2 and a triode Q1 is used for detecting abnormal potential signals, the triode Q2 feeds back a high-level signal to the inverting input end of the operational amplifier AR1, the triode Q1 feeds back a low-level signal, a limiting frequency modulation circuit consisting of a diode D2, a diode D5 and a capacitor C6, a capacitor C8 is used for symmetrically limiting the signal and playing a role in frequency selection, the feedback signal is fed back to the inverting input end of the operational amplifier AR1, finally the noise reduction output circuit receives the output signal of the feedback regulation circuit, the operational amplifier AR2 amplifies the signal in phase, and a noise reduction circuit consisting of a diode D7, a diode D8 and a capacitor C4 is used for reducing the signal-to-noise ratio and outputting the signal, namely a correction signal for receiving a data server signal by a control terminal;
the feedback regulation circuit comprises an operational amplifier AR1, a non-inverting input terminal of the operational amplifier AR1 is connected with a cathode of a diode D6 and one end of a capacitor C2, an inverting input terminal of the operational amplifier AR2 is connected with a resistor R2, one end of the capacitor C2 and an emitter of a transistor Q2, the other end of the capacitor C2 is connected with one end of the resistor R2, an output terminal of the operational amplifier AR2 is connected with one end of the resistor R2, the other end of the resistor R2 and the other end of the capacitor C2 are connected with ground, an output terminal of the operational amplifier AR2 is connected with a base of the transistor Q2 and a collector of the transistor Q2, a base of the transistor Q2 is connected with an emitter of the transistor Q2 and one end of the resistor R2, the other end of the resistor R2 is connected with ground, a collector of the transistor Q2 is connected with an anode of the diode D2, a cathode of the diode D2, the cathode of the diode D4 is connected with the anode of the diode D5, one end of the resistor R6 and one end of the capacitor C7, the other end of the resistor R6 is connected with one end of the resistor R8 and one end of the capacitor C6, the other end of the capacitor C7 is connected with one end of the resistor R7 and one end of the capacitor C8, the other ends of the resistor R7 and the capacitor C6 are grounded, the other ends of the resistor R8 and the capacitor C8 are connected with the anode of the diode D2 and the cathode of the diode D3, and the cathode of the diode D2 is connected with the anode of the diode D3 and the anode of the diode D.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages;
1. a triode Q2 and a triode Q1 are used for forming a switching circuit to detect an abnormal potential signal and stabilize the amplitude of the signal, a triode Q2 feeds back a high-level signal to the inverting input end of an operational amplifier AR1, the potential of the signal output by the operational amplifier AR1 is adjusted, a triode Q1 is conducted at a low level, a limiting frequency modulation circuit consisting of a diode D2, a diode D5 and a capacitor C6-C8 is used for symmetrically limiting the signal, a limiting circuit consisting of a diode D4 and a diode D5 is used for limiting the low-level signal fed back by the triode Q1, a frequency selection circuit consisting of a resistor R6, a resistor R8 and a capacitor C6 and a capacitor C8 is used for filtering the abnormal frequency signal, a symmetrical limiting circuit consisting of a diode D2 and a diode D3 is used for further limiting the signal, the depth of the signal is increased, the signal is fed back to the non-inverting input end of an operational amplifier AR1, has great practical value;
2. the operational amplifier AR2 is used to amplify the signal in phase, and at the same time, the diode D7, the diode D8 and the capacitor C4 are used to form a noise reduction circuit, which reduces the signal-to-noise ratio and outputs the signal, i.e., the correction signal for the control terminal to receive the data server signal, and compensates the error between the modulated signal sent by the data server and the analog signal frequency before demodulation received by the control terminal.
Drawings
FIG. 1 is a schematic circuit diagram of a big data based industrial control system 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 embodiment I provides an industrial control system based on big data, which comprises a control terminal, a data server, a signal transmission module and an information acquisition module, wherein the data server receives information of the information acquisition module through the signal transmission module, the control terminal receives information of the data server through the signal transmission module, the control terminal receives signals and sends control instructions to regulate and control industrial working equipment, the industrial control system further comprises a frequency acquisition circuit, a feedback regulation circuit and a noise reduction output circuit, the frequency acquisition circuit acquires analog signal frequency modulated by the data server in the industrial control system by using a frequency acquisition device with the model of SJ-ADC, the feedback regulation circuit filters disturbance signals in the signals by using an operational amplifier AR1, an operational amplifier AR3, a capacitor C2 and a capacitor C3, and the feedback regulation circuit detects abnormal potential signals by using a switching circuit consisting of a triode Q2 and a triode Q1, the triode Q2 feeds back a high-level signal to the inverting input end of the operational amplifier AR1, the triode Q1 feeds back a low-level signal, a limiting frequency modulation circuit consisting of a diode D2, a diode D5 and a capacitor C6, a capacitor C8 is used for symmetrically limiting the signal and playing a role in frequency selection, the feedback signal is fed back to the inverting input end of the operational amplifier AR1, finally the noise reduction output circuit receives the output signal of the feedback regulation circuit, the operational amplifier AR2 amplifies the signal in phase, and a noise reduction circuit consisting of a diode D7, a diode D8 and a capacitor C4 is used for reducing the signal-to-noise ratio and outputting the signal, namely a correction signal for receiving a data server signal by a control terminal;
the feedback adjusting circuit utilizes an operational amplifier AR1, an operational amplifier AR3, a capacitor C2 and a capacitor C3 to form a filter circuit to filter disturbance signals in signals, utilizes the property of decoupling capacitors of the capacitor C2 and the capacitor C3 to discharge the disturbance signals to the ground, utilizes a switching circuit formed by a triode Q2 and a triode Q1 to detect abnormal potential signals and stabilize signal amplitude, feeds back high-level signals to an inverting input end of the operational amplifier AR1 by the triode Q2 to adjust the signal potential output by the operational amplifier AR1, conducts a triode Q1 at a low level, utilizes a limiting circuit formed by a diode D2, a diode D5 and a capacitor C6 and a capacitor C8 to symmetrically limit the signals, utilizes a low-level signal fed back by a circuit formed by a diode D4 and a diode D5 to the triode Q1, then utilizes a resistor R6-resistor R8 and a capacitor C6-capacitor C8 to form a frequency selecting circuit to filter abnormal frequency signals, finally, a symmetrical amplitude limiting circuit consisting of a diode D2 and a diode D3 is used for further limiting the signal, the amplitude of the signal is increased, the signal is fed back to the non-inverting input end of an operational amplifier AR1, the effect of adjusting the amplitude of the signal output by the operational amplifier AR1 is realized, the accuracy of the control terminal for receiving the signal correction signal of the data server is ensured, the non-inverting input end of the operational amplifier AR1 is connected with the cathode of a diode D6 and one end of a capacitor C2, the inverting input end of the operational amplifier AR1 is connected with a resistor R3, one end of a capacitor C3 and the emitter of a triode Q2, the other end of the capacitor C2 is connected with one end of a resistor R2, the output end of an operational amplifier AR1 is connected with one end of a resistor R4, the other end of a resistor R4 is connected with the non-inverting input end of an operational amplifier AR3, the inverting input end of the operational amplifier AR3 is connected with one end of a resistor R5, the other ends of a resistor R7, a resistor R36, the base of the triode Q2 is connected with the emitter of the triode Q1 and one end of the resistor R10, the other end of the resistor R10 is grounded, the collector of the triode Q1 is connected with the anode of the diode D4, the cathode of the diode D5 and one end of the resistor R9, the other end of the resistor R9 is grounded, the cathode of the diode D4 is connected with the anode of the diode D5 and one end of the resistor R6 and the capacitor C7, the other end of the resistor R6 is connected with the resistor R8 and one end of the capacitor C6, the other end of the capacitor C6 is connected with the resistor R6 and one end of the capacitor C6, the other ends of the resistor R6 and the capacitor C6 are grounded, the other ends of the resistor R6 and the capacitor C6 are connected with the anode of the diode D6 and the cathode of the diode D6.
In the second embodiment, on the basis of the first embodiment, the noise reduction output circuit uses an operational amplifier AR2 to amplify a signal in phase, and uses a diode D7, a diode D8 and a capacitor C4 to form the noise reduction circuit, and outputs the signal with a reduced signal-to-noise ratio, that is, the noise reduction circuit is configured to receive a correction signal of a data server signal for a control terminal, compensate an error between a modulated signal sent by a data server and an analog signal frequency before demodulation received by the control terminal, the non-inverting input terminal of the operational amplifier AR2 is connected to one end of a resistor R11, the other end of the resistor R11 is connected to an anode of a diode D7 and one end of a capacitor C4, and the output end of the operational amplifier AR3, the inverting input terminal of the operational amplifier AR2 is connected to one end of a resistor R12 and a resistor R13, the other end of the resistor R12 is connected to ground, the output end of the operational amplifier AR2 is connected to an anode of a diode D, the cathode of the diode D8 is connected with the cathode of the diode D7, and the other end of the resistor R14 is connected with the signal output port.
In the third embodiment, on the basis of the second embodiment, the frequency acquisition circuit selects a frequency collector J1 with the model number of SJ-ADC to acquire the frequency of the analog signal modulated by the data server in the industrial control system, the power supply end of the frequency collector J1 is connected to +5V, the ground end of the frequency collector J1 is grounded, the output end of the frequency collector J1 is connected to the negative electrode of a voltage regulator tube D1 and one end of a resistor R1, the positive electrode of the voltage regulator tube D1 is grounded, the other end of the resistor R1 is connected to one end of a capacitor C1 and one end of a resistor R2, and the other end of the capacitor C1 is grounded.
When the industrial control system is used, the industrial control system based on big data comprises a control terminal, a data server, a signal transmission module and an information acquisition module, wherein the data server receives information of the information acquisition module through the signal transmission module, the control terminal receives information of the data server through the signal transmission module, the control terminal receives signals and sends control instructions to regulate and control industrial working equipment, the industrial control system further comprises a frequency acquisition circuit, a feedback regulation circuit and a noise reduction output circuit, the frequency acquisition circuit acquires analog signal frequency modulated by the data server in the industrial control system by using a frequency acquisition device with the model of SJ-ADC, the feedback regulation circuit filters disturbance signals in the signals by using a filter circuit consisting of an operational amplifier AR1, an operational amplifier AR3, a capacitor C2 and a capacitor C3, and decoupling properties of the capacitors are decoupled by using the capacitors C2 and the capacitor C3, the disturbance signal is discharged to the ground, meanwhile, a triode Q2 and a triode Q1 are used to form a switching circuit to detect an abnormal potential signal and stabilize the signal amplitude, a triode Q2 feeds back a high level signal to the inverting input end of an operational amplifier AR1, the signal potential output by the operational amplifier AR1 is adjusted, a triode Q1 is conducted at a low level, a limiting frequency modulation circuit consisting of a diode D2-a diode D5 and a capacitor C6-a capacitor C8 is used to symmetrically limit the signal, a limiting circuit consisting of the diode D4 and the diode D5 is used to limit the low level signal fed back by the triode Q1, a resistor R6-a resistor R8-a capacitor C6-a capacitor C8 is used to filter the abnormal frequency signal, finally, a symmetrical circuit consisting of a diode D2 and a diode D3 is used to further increase the signal limiting depth, the signal limiting AR is fed back to the inverting input end of the limiting 1, the effect of adjusting the amplitude of the output signal of the operational amplifier AR1 is achieved, the accuracy of receiving the signal correction signal of the data server by the control terminal is guaranteed, finally the noise reduction output circuit receives the output signal of the feedback adjusting circuit, the operational amplifier AR2 is used for amplifying the signal in the same phase, meanwhile, the diode D7, the diode D8 and the capacitor C4 are used for forming the noise reduction circuit, the signal noise ratio is reduced, and then the noise reduction circuit outputs the signal, namely the correction signal for receiving the signal of the data server by 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. An industrial control system based on big data comprises a control terminal, a data server, a signal transmission module and an information acquisition module, wherein the data server receives information of the information acquisition module through the signal transmission module, the control terminal receives information of the data server through the signal transmission module, the control terminal receives signals and sends out control instructions to regulate and control industrial working equipment, and the industrial control system is characterized by further comprising a frequency acquisition circuit, a feedback regulation circuit and a noise reduction output circuit, wherein the frequency acquisition circuit acquires analog signal frequency modulated by the data server in the industrial control system by using a frequency acquisition device with the model of SJ-ADC, the feedback regulation circuit filters disturbance signals in the signals by using an operational amplifier AR1, an operational amplifier AR3, a capacitor C2 and a capacitor C3, and simultaneously, a switching circuit consisting of a triode Q2 and a triode Q1 is used for detecting abnormal potential signals, a triode Q2 feeds back a high-level signal to an inverting input end of an operational amplifier AR1, a triode Q1 feeds back a low-level signal, an amplitude limiting frequency modulation circuit consisting of diodes D2, D3, D4 and D5 and capacitors C6, C7 and C8 is used for symmetrically limiting the signal and playing a role in frequency selection, the feedback signal is fed back to an in-phase input end of the operational amplifier AR1, finally a noise reduction output circuit receives an output signal of the feedback regulation circuit, an in-phase amplification signal of the operational amplifier AR2 is used, a noise reduction circuit consisting of a diode D7, a diode D8 and a capacitor C4 is used for reducing the signal-to-noise ratio and outputting the signal, namely a correction signal for receiving a data server signal by a control terminal;
the feedback regulation circuit comprises an operational amplifier AR1, a non-inverting input terminal of the operational amplifier AR1 is connected with a cathode of a diode D6 and one end of a capacitor C2, an inverting input terminal of the operational amplifier AR2 is connected with a resistor R2, one end of the capacitor C2 and an emitter of a transistor Q2, the other end of the capacitor C2 is connected with one end of the resistor R2, an output terminal of the operational amplifier AR2 is connected with one end of the resistor R2, the other end of the resistor R2 and the other end of the capacitor C2 are connected with ground, an output terminal of the operational amplifier AR2 is connected with a base of the transistor Q2 and a collector of the transistor Q2, a base of the transistor Q2 is connected with an emitter of the transistor Q2 and one end of the resistor R2, the other end of the resistor R2 is connected with ground, a collector of the transistor Q2 is connected with an anode of the diode D2, a cathode of the diode D2, the negative electrode of the diode D4 is connected with the positive electrode of the diode D5, one end of the resistor R6 and one end of the capacitor C7, the other end of the resistor R6 is connected with one end of the resistor R8 and one end of the capacitor C6, the other end of the capacitor C7 is connected with one end of the resistor R7 and one end of the capacitor C8, the other ends of the resistor R7 and the capacitor C6 are grounded, the other ends of the resistor R8 and the capacitor C8 are connected with the positive electrode of the diode D2 and the negative electrode of the diode D3, the negative electrode of the diode D2 is connected with the positive electrode of the diode D3 and the positive electrode of the diode D6, the triode Q1 is a PNP type.
2. The industrial control system based on big data as claimed in claim 1, wherein said noise reduction output circuit includes an operational amplifier AR2, the non-inverting input terminal of operational amplifier AR2 is connected to one end of resistor R11, the other terminal of resistor R11 is connected to the positive electrode of diode D7 and one end of capacitor C4 and the output terminal of operational amplifier AR3, the inverting input terminal of operational amplifier AR2 is connected to one end of resistor R12 and resistor R13, the other terminal of resistor R12 is connected to ground, the output terminal of operational amplifier AR2 is connected to the positive electrode of diode D8, the other terminal of capacitor C4 and the other end of resistor R13 and one end of resistor R14, the negative electrode of diode D8 is connected to the negative electrode of diode D7, and the other terminal of resistor R14 is connected to the signal output port.
3. The industrial control system based on the big data as claimed in claim 1, wherein the frequency acquisition circuit 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 D1 and one end of a resistor R1, an anode of the voltage regulator tube D1 is grounded, the other end of the resistor R1 is connected with one end of a capacitor C1 and one end of a resistor R2, the other end of the capacitor C1 is grounded, and the other end of the resistor R2 is grounded.
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| CN110968012A (en) * | 2019-12-26 | 2020-04-07 | 郑州科技学院 | Electronic signal compensation device |
| CN111082789B (en) * | 2020-01-22 | 2022-10-25 | 国网河南省电力公司信息通信公司 | Emergent switching circuit of power communication |
| 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 |
| CN111431486B (en) * | 2020-04-16 | 2023-12-29 | 张磊 | Information adjusting circuit based on Internet of things |
| CN111464174A (en) * | 2020-04-16 | 2020-07-28 | 蔡波 | Sewage treatment monitoring system |
| CN111526535B (en) * | 2020-05-11 | 2021-11-26 | 华兴通信技术有限公司 | 5G communication node monitoring system |
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