CN111490800A - Power distribution cabinet management system based on internet - Google Patents
Power distribution cabinet management system based on internet Download PDFInfo
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- CN111490800A CN111490800A CN202010362795.6A CN202010362795A CN111490800A CN 111490800 A CN111490800 A CN 111490800A CN 202010362795 A CN202010362795 A CN 202010362795A CN 111490800 A CN111490800 A CN 111490800A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B1/0475—Circuits with means for limiting noise, interference or distortion
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/128—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment involving the use of Internet protocol
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
Abstract
The invention discloses a power distribution cabinet management system based on the internet, which comprises a signal sampling module and a feedback noise reduction module, the signal sampling module samples carrier signals of a signal emitter node in a power distribution cabinet management system based on the internet, the signal sampling module is connected with the feedback noise reduction module, a triode Q1 is used for detecting the output signals of the resonant circuit and the potential difference of the signal of an emitter of a triode Q3, in order to further ensure the accuracy of the signal amplitude, a triode Q2 is used for feeding back the potential difference between the output end and the non-inverting input end of the operational amplifier AR2, when the difference is too large, the output signal of the operational amplifier AR2 is not in the error range, the feedback signal is fed back to the inverting input end of the operational amplifier AR1, and the noise reduction and frequency stabilization are carried out until the output signal of the operational amplifier AR2 is in the error range, so that the power distribution cabinet management system terminal based on the internet can respond to the distortion of the carrier signal quickly in time.
Description
Technical Field
The invention relates to the technical field of internet, in particular to a power distribution cabinet management system based on the internet.
Background
At present, the rapid development of the internet promotes the gradual increase of domestic data centers, the automation degree of the devices is high, the efficiency is high, the continuous operation time is long, the power supply requirement is very high correspondingly, the capacity of a low-voltage distribution transformer is continuously increased, the performance of a low-voltage distribution cabinet is required to be higher and higher, and the low-voltage distribution cabinet is a foundation for adapting to the rapid development of the current information technology;
the utility model discloses a power distribution cabinet management system based on internet can improve the managerial efficiency of switch board, and the information transmission of switch board is the carrier transmission very much, because for remote transmission, often meets the interference of equal or high frequency signal in the atmospheric environment, for example power plant, during the signal transmission tower, often carrier signal takes place the distortion, leads to the switch board management system based on internet to receive the signal inaccurate, has reduced the result of use of the switch board management system based on internet.
Disclosure of Invention
In view of the above situation, in order to overcome the defects of the prior art, an object of the present invention is to provide an internet-based power distribution cabinet management system, which can sample and calibrate a signal emitter node carrier signal in the internet-based power distribution cabinet management system, and convert the signal emitter node carrier signal into an internet-based trigger signal of a power distribution cabinet management system terminal.
The technical scheme for solving the problem is that the power distribution cabinet management system based on the internet comprises a signal sampling module and a feedback noise reduction module, wherein the signal sampling module is used for sampling a signal emitter node carrier signal in the power distribution cabinet management system based on the internet, the signal sampling module is connected with the feedback noise reduction module, and an output signal of the feedback noise reduction module is sent to a power distribution cabinet management system terminal based on the internet through a signal emitter E1;
the feedback noise reduction module comprises a variable resistor RW, one end of the variable resistor RW, which is connected with one end of a capacitor C and an output port of a signal sampling module in a sliding manner, one end of the variable resistor RW is connected with one end of a resistor R, the other end of the variable resistor RW is connected with a collector of a triode Q, the other end of the resistor R is connected with an inductor 1, one end of a resistor R, the other end of the inductor 1 is connected with the other end of the capacitor C and the other end of the resistor R, the other end of the resistor R is connected with a non-inverting input end of an amplifier AR, the inverting input end of the amplifier AR is connected with the resistor R, one end of the capacitor C, the other end of the capacitor C is connected with a base of the triode Q, the output end of the amplifier AR is connected with a collector of the triode Q and a resistor R, one end of a capacitor C and one end of an inductor 2, the other end of the resistor R is connected with the other end of the capacitor C and one end of the capacitor C, an emitter of the diode D, the cathode of the diode D, the emitter of the diode D and the emitter of the amplifier are connected with the emitter of the amplifier, the emitter of the resistor R, the emitter of the amplifier, the emitter of the amplifier R and the emitter of the amplifier, the emitter of the amplifier are connected with the emitter of the triode Q, the emitter of the.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages;
1. when the signal frequency is abnormal, series resonance can be caused at the moment, the voltage height at two ends of a load resistor R3 is high, the inductor L1 just compensates the upper limit of the signal frequency at the moment, the effect of supplementing the signal frequency is realized, in order to enable a sampled signal to be accurate, noise interference is not needed to be ensured in the signal, because the noise accumulation is carried out in the signal transmission, once a signal source has noise, the sampled signal received by a power distribution cabinet management system terminal based on the internet is distorted, therefore, the capacitor C3 is used as a coupling capacitor, the signal noise at the output end of an operational amplifier AR1 is reduced, meanwhile, a distortion signal is filtered by using a triode Q3, the capacitor C4 plays a role of a bypass capacitor, meanwhile, the inductor L2 is used for filtering abnormal high-frequency components, the capacitor C5 and the capacitor C6 are used for filtering abnormal low-frequency components, frequency abnormality is avoided in the noise reduction;
2. the output signal of the resonant loop and the signal potential difference of an emitter of a triode Q3 are detected by using a triode Q1, a signal is fed back to an emitter of a triode Q4, the signal of the emitter of a triode Q3 is further detected by using a triode Q4, the triode Q1 and the triode Q4 are respectively of NPN type and PNP type so as to ensure the amplitude of a calibration signal, the feedback signal is fed back to an inverting input end of an operational amplifier AR2 so as to adjust the effect of the amplitude of the output signal of an operational amplifier AR2, in order to further ensure the accuracy of the signal amplitude, the potential difference between the output end and a non-inverting input end of the operational amplifier AR2 is fed back by using a triode Q2, when the difference is overlarge, the output signal of the operational amplifier AR2 is not in an error range, the feedback signal is fed back to the inverting input end of the operational amplifier AR1, the noise reduction and frequency stabilization are adjusted until the output signal of the operational amplifier AR2 is in, the power distribution cabinet management system terminal based on the internet can timely make quick response to carrier signal distortion.
Drawings
Fig. 1 is a feedback noise reduction module diagram of a power distribution cabinet management system based on the internet.
Fig. 2 is a signal sampling module diagram of a power distribution cabinet management system based on the internet.
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 internet-based power distribution cabinet management system comprises a signal sampling module and a feedback noise reduction module, wherein the signal sampling module samples a carrier signal of a signal emitter node in the internet-based power distribution cabinet management system, the signal sampling module is connected with the feedback noise reduction module, and an output signal of the feedback noise reduction module is sent to an internet-based power distribution cabinet management system terminal through a signal emitter E1;
the feedback noise reduction module utilizes a capacitor C2, an inductor L and a resistor R3 to form a resonant loop, compensates signal frequency, widens the passband of a signal, and achieves the effect of improving signal transmission stability, when the signal frequency is abnormal, a series resonance is caused at the moment, so that the voltages at two ends of a load resistor R3 are high, at the moment, an inductor L just compensates the upper limit of the signal frequency, and the effect of supplementing the signal frequency is achieved, in order to make a sampled signal accurate, it is required to ensure that the signal does not contain noise interference, once noise exists in a signal source, the sampled signal received by a power distribution cabinet management system terminal based on the internet is distorted, therefore, a capacitor C3 is utilized as a coupling capacitor, the signal noise at the output end of an operational amplifier AR1 is reduced, meanwhile, a distorted signal is filtered by a triode Q3, a capacitor C4 plays a role of a bypass capacitor, an inductor AR 72 2 is utilized simultaneously, an AR 72 2 abnormal high-frequency component is filtered, a capacitor C L filters an abnormal low-frequency component, an emitter of the abnormal signal is filtered, an emitter of a triode transistor is filtered during the noise reduction process of noise reduction, the noise reduction process, the abnormal frequency signal is further filtered by utilizing an emitter of a frequency signal, the frequency, the equivalent noise reduction amplifier is utilized on the equivalent of an emitter of;
the feedback noise reduction module is specifically structured, a sliding end of a variable resistor RW is connected with one end of a capacitor C and an output port of a signal sampling module, one end of the variable resistor RW is connected with one end of a resistor R, the other end of the variable resistor RW is connected with a collector of a triode Q, the other end of the resistor R is connected with an inductor 1, the resistor R, one end of the resistor R, the other end of the inductor 1 is connected with the other end of the capacitor C and the other end of the resistor R, the other end of the resistor R is connected with a non-inverting input end of an amplifier AR, an inverting input end of the amplifier AR is connected with the resistor R, one end of the capacitor C, the other end of the capacitor C is connected with a base of the triode Q, an output end of the amplifier AR is connected with a collector of the triode Q and a resistor R, the capacitor C, one end of an inductor 2, the other end of the resistor R is connected with the other end of the capacitor C and one end of the capacitor C, an emitter of the diode D, a cathode of the diode D, an emitter of the diode D and an emitter of the amplifier Q, the emitter of the resistor R and an emitter of the amplifier R are connected with an emitter of the amplifier, the emitter of the amplifier R, the emitter of the amplifier R and the emitter of the amplifier, the emitter of the amplifier are connected with the emitter of the triode Q, the emitter of the amplifier, the emitter of the emitter.
In the second embodiment, on the basis of the first embodiment, the signal sampling module selects a signal sampler J1 with a model of DAM-3056AH to sample a carrier signal of a node of a signal transmitter in an internet-based power distribution cabinet management system, a voltage regulator tube D1 stabilizes voltage, a capacitor C1 and a resistor R2 form an RC filter circuit to filter the signal, the power supply terminal of the signal sampler J1 is connected to +5V, the ground terminal of the signal sampler J1 is grounded, the output terminal of the signal sampler J1 is connected to the negative electrode of the 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, the other end of a capacitor C1 is connected to one end of a resistor R2 and a signal input port of a feedback noise reduction module.
When the system is used specifically, an internet-based power distribution cabinet management system comprises a signal sampling module and a feedback noise reduction module, wherein the signal sampling module samples a signal transmitter node carrier signal in the internet-based power distribution cabinet management system, the signal sampling module is connected with the feedback noise reduction module, the feedback noise reduction module utilizes a capacitor C2, an inductor L and a resistor R3 to form a resonant loop, compensates the signal frequency, widens the passband of a signal, and achieves the effect of improving the signal transmission stability, when the signal frequency is abnormal, a series resonance is caused, the voltage heights at two ends of a load resistor R3 are made, the upper limit of the signal frequency is just compensated by an inductor L, the effect of supplementing the signal frequency is realized, in order to make the sampled signal accurate, the signal does not contain noise interference, because noise accumulation exists in the signal transmission, once noise exists in a signal source, the sampled signal received by an internet-based power distribution cabinet management system terminal is distorted, therefore, a capacitor C3 is used as a coupling capacitor, the signal noise at the output end of an operational amplifier, the signal is reduced, and the noise of an AR, and the signal is filtered by a triode AR, and the filtered by a triode A L, the amplifier, the filtered signal amplitude of a high-frequency signal is further filtered by a triode A L, the triode A L is further stabilized signal is utilized for stabilizing amplifier for stabilizing signal amplitude is utilized for stabilizing signal amplitude of a high-frequency, the high-frequency signal is further stabilized signal amplitude of an emitter of a triode signal is further stabilized signal is filtered signal is further stabilized signal, the triode signal is filtered signal, the triode signal is further stabilized signal, the emitter of an emitter L, the triode for stabilizing triode signal is filtered, the triode for stabilizing amplifier, the triode for stabilizing triode for the triode for stabilizing triode for.
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 power distribution cabinet management system based on the internet comprises a signal sampling module and a feedback noise reduction module, and is characterized in that the signal sampling module samples a signal emitter node carrier signal in the power distribution cabinet management system based on the internet, the signal sampling module is connected with the feedback noise reduction module, and an output signal of the feedback noise reduction module is sent to a power distribution cabinet management system terminal based on the internet through a signal emitter E1;
the feedback noise reduction module comprises a variable resistor RW, one end of the variable resistor RW, which is connected with one end of a capacitor C and an output port of a signal sampling module in a sliding manner, one end of the variable resistor RW is connected with one end of a resistor R, the other end of the variable resistor RW is connected with a collector of a triode Q, the other end of the resistor R is connected with an inductor 1, one end of a resistor R, the other end of the inductor 1 is connected with the other end of the capacitor C and the other end of the resistor R, the other end of the resistor R is connected with a non-inverting input end of an amplifier AR, the inverting input end of the amplifier AR is connected with the resistor R, one end of the capacitor C, the other end of the capacitor C is connected with a base of the triode Q, the output end of the amplifier AR is connected with a collector of the triode Q and a resistor R, one end of a capacitor C and one end of an inductor 2, the other end of the resistor R is connected with the other end of the capacitor C and one end of the capacitor C, an emitter of the diode D, the cathode of the diode D, the emitter of the diode D and the emitter of the amplifier are connected with the emitter of the amplifier, the emitter of the resistor R, the emitter of the amplifier, the emitter of the amplifier R and the emitter of the amplifier, the emitter of the amplifier are connected with the emitter of the triode Q, the emitter of the.
2. The Internet-based power distribution cabinet management system is characterized in that the signal sampling module comprises a DAM-3056AH signal sampler J1, a power supply end of the signal sampler J1 is connected with +5V, a ground end of the signal sampler J1 is connected with ground, an output end of the signal sampler J1 is connected with a negative electrode of a voltage regulator D1 and one end of a resistor R1, an anode of the voltage regulator D1 is connected with ground, the other end of the resistor R1 is connected with one end of a capacitor C1, the other end of the capacitor C1 is connected with one end of the resistor R2 and a signal input port of the feedback noise reduction module, and the other end of the resistor R2 is connected with ground.
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| CN202010362795.6A CN111490800B (en) | 2020-04-30 | 2020-04-30 | Power distribution cabinet management system based on internet |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010362795.6A CN111490800B (en) | 2020-04-30 | 2020-04-30 | Power distribution cabinet management system based on internet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111983446A (en) * | 2020-08-31 | 2020-11-24 | 郑州铁路职业技术学院 | Railway signal relay real-time positioning monitoring system |
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| CN110596335A (en) * | 2019-09-30 | 2019-12-20 | 河南沃海水务有限公司 | Water quality monitoring real-time early warning system |
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| CN101447738A (en) * | 2008-12-29 | 2009-06-03 | 重庆航天工业公司 | Flameproof intrinsically safe power supply device |
| CN109048149A (en) * | 2018-08-31 | 2018-12-21 | 许少辉 | A kind of tool center point calibration circuit of welding robot |
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Effective date of registration: 20210114 Address after: 277000 No.8 Ningbo Road, Xingcheng street, high tech Zone, Zaozhuang City, Shandong Province Applicant after: Shandong Shengfan Electronic Technology Co.,Ltd. Address before: 450000 Building 2, Fortune Plaza, nongnongnong Road, jingsan Road, Jinshui District, Zhengzhou City, Henan Province Applicant before: Yuan Ye |
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