CN113472394B - Bypass data monitoring system based on power line carrier - Google Patents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/546—Combination of signalling, telemetering, protection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
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- H04B3/46—Monitoring; Testing
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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
Abstract
The application relates to a bypass data monitoring system based on power line carrier, which comprises a concentrator and a low-voltage intelligent monitoring end; the dynamic configuration of the waveform, the frequency and the amplitude of the carrier signal is realized, the capacities of resisting pulse interference, load attenuation, load loss, coupling loss and the like are obviously improved, and data abnormity caused by the fact that each concentrator is independently configured with the corresponding carrier type is avoided. Meanwhile, under the condition that the working mode of the intelligent electric meter and the concentrator in the electricity consumption information acquisition system is not influenced, the data interaction content between the concentrator and the intelligent electric meter can be obtained, the concentrator does not need to be upgraded, and the metering and acquisition service of the electricity consumption information acquisition system is not influenced.
Description
Technical Field
The application relates to the electric power communication management technology, in particular to a bypass data monitoring system based on electric power carrier waves.
Background
With the rapid development of artificial intelligence, the Internet of things and communication technology, the form of a power grid is changed, and the construction of an energy Internet is a fundamental way in compliance with the fusion development trend of the energy revolution and the digital revolution. The national grid company provides a ubiquitous power internet of things (SG-eIoT), covers the cloud, the network and the end of energy power, and is structurally divided into a sensing layer, a network layer, a platform layer and an application layer. The power line is the most popular and most extensive physical medium, and power carrier communication (PLC) adopts the power line as a communication medium, does not need communication line construction and communication line maintenance, has incomparable advantages of other communication, and is the most ideal information transmission carrier in the fields of intelligent power grids and intelligent electricity consumption meter reading.
The development of electric power digitization, the electric power industry invests a large amount of funds to reform the electric meters and lines of the power grid, and the 'one-household one-meter and centralized meter reading' is comprehensively popularized, so that the 'full coverage' and 'full collection' of electric power are realized. Due to the hardware performance limitations of a CPU, a memory, a storage + and the like of the current concentrator, the current concentrator needs to rely on a cloud to carry out business application processing, and cannot carry out local processing and regional autonomy on edge side business, so that the problems of a business processing link, long response time, high performance pressure of a cloud system server, network communication bottleneck and the like are caused.
Once the carrier communication mode is determined, the adjustment cost is high, and the carrier communication result is affected by conditions such as impulse interference, load attenuation, load loss, coupling loss and the like.
Disclosure of Invention
In view of the above, the present application aims to provide a bypass data monitoring system based on a power carrier.
In order to solve the technical problem, the technical scheme of the application is as follows:
a bypass data monitoring system based on power line carrier comprises a concentrator and a low-voltage intelligent monitoring end;
the concentrator comprises a high-speed carrier module, wherein the high-speed carrier module comprises a monitoring feedback unit, a carrier generation unit, a waveform storage unit, a waveform modulation unit and a preloading simulation unit; the monitoring feedback unit is used for receiving a monitoring feedback signal of the low-voltage intelligent monitoring end and analyzing the monitoring feedback signal to generate waveform characteristics, modulation characteristics and preloading data; the waveform storage unit is stored with a plurality of carrier waveforms in advance, each carrier waveform corresponds to a waveform characteristic, the waveform storage unit calls the corresponding carrier waveform to the carrier generation unit according to the received waveform characteristic, the waveform modulation unit generates a modulation frequency and a modulation amplitude to the carrier generation unit according to the received modulation characteristic, the carrier generation unit comprises a carrier output circuit, and the carrier generation unit configures the carrier output circuit according to the modulation frequency, the modulation amplitude and the carrier waveform so as to enable the characteristics of the carrier signal output by the carrier output circuit to correspond to the modulation frequency, the modulation amplitude and the carrier waveform; the high-speed carrier module sends a carrier signal through the carrier output circuit, the preloading simulation unit generates a preloading signal according to received preloading data, and the high-speed carrier module sends the preloading signal as the carrier signal;
the low-voltage intelligent monitoring end comprises a carrier monitoring module, and the carrier monitoring module comprises a preloading comparison unit, a preloading modulation unit, a dynamic monitoring unit, a carrier monitoring unit and a separation loading unit; the system comprises a preload comparison unit, a preload modulation unit and a high-speed carrier module, wherein the preload comparison unit is used for identifying and receiving a preload signal serving as a carrier signal, the preload comparison unit is configured with preload comparison conditions, the preload comparison unit compares preload data with the preload signal, if the comparison result meets the preload comparison conditions, a characteristic load signal is generated according to the preload signal, if the comparison result does not meet the preload comparison conditions, the preload modulation unit generates preload feedback characteristics according to the corresponding comparison result, and corrects a monitoring feedback signal according to the preload feedback characteristics to generate a new monitoring feedback signal and send the new monitoring feedback signal to the high-speed carrier module; the dynamic monitoring unit is configured with a dynamic monitoring strategy, and monitors a carrier signal in real time and generates a monitoring feedback signal through the dynamic monitoring strategy; the carrier monitoring unit receives carrier signals in real time through a carrier separation strategy and uploads the carrier signals; the separation loading unit is configured with a separation loading database, the separation loading database is pre-stored with a plurality of carrier separation strategies, the carrier separation strategies take the characteristic loading signals as indexes, the separation loading unit calls the corresponding carrier separation strategies according to the characteristic loading signals, and the obtained carrier separation strategies are configured to the corresponding carrier monitoring units.
Further, if the total deviation value in the comparison result exceeds a preset total deviation threshold, it is determined that the preload comparison condition is not satisfied, or if the deviation value of a preset special item in the comparison result exceeds a preset special deviation threshold, it is determined that the preload comparison condition is not satisfied.
Further, the carrier separation strategy is configured with a plurality of carrier characteristics, each carrier characteristic corresponds to a carrier priority value, and the carrier monitoring unit extracts a carrier signal from the power transmission current according to the carrier priority value.
Further, the carrier monitoring module is connected in parallel with A, B, C three phases and a zero line of the concentrator, the dynamic monitoring strategy comprises a waveform compensation step, a waveform loss threshold is configured in the waveform compensation step, the waveform compensation step determines a waveform loss value according to a comparison of carrier signals of the three phases, and if the waveform loss value is greater than the waveform loss threshold, a waveform compensation signal is generated according to the carrier signals;
the high-speed carrier module further comprises a waveform compensation unit, the waveform compensation unit is connected to the carrier output circuit, and the waveform compensation unit configures the carrier output circuit according to the waveform compensation signal.
Further, the dynamic monitoring strategy includes an attenuation compensation step, the attenuation compensation step is configured with an attenuation compensation threshold, an attenuation value is determined according to the carrier signal, and if the attenuation value is greater than the attenuation compensation threshold, an attenuation compensation signal is generated according to the corresponding attenuation value;
the high-speed carrier module further comprises an attenuation compensation unit, the attenuation compensation unit is connected to the carrier output circuit, and the attenuation compensation unit configures the carrier output circuit according to the attenuation compensation signal.
Furthermore, the low-voltage intelligent monitoring end further comprises a data configuration module, the data configuration module comprises a format conversion unit and a network transformer, the format conversion unit is used for converting a data format of carrier data corresponding to the carrier signal uploaded by the carrier monitoring unit, and the network transformer is used for performing transformation processing on the converted carrier data and uploading the carrier data to the application end.
Furthermore, the low-voltage intelligent monitoring end further comprises a carrier control module, and the carrier control module is used for outputting a carrier control signal to the concentrator.
Furthermore, the carrier control module further comprises a control communication unit, and the control communication unit is respectively connected with the application terminal and the carrier monitoring unit.
Furthermore, the control communication unit and the application terminal, and the carrier monitoring unit and the control communication unit are communicated with each other through a universal asynchronous receiving and transmitting transmitter.
Further, the monitoring feedback unit receives the carrier signal through a wireless network.
The technical effects of the application are mainly reflected in the following aspects: by the arrangement, the dynamic configuration of the waveform, the frequency and the amplitude of the carrier signal is realized, the pulse interference resistance, the load attenuation resistance, the load loss resistance, the coupling loss resistance and the like are obviously improved, and the data abnormality caused by the independent configuration of the corresponding carrier type of each concentrator is avoided.
Drawings
FIG. 1: the method is based on a power line carrier bypass data monitoring system architecture schematic diagram;
FIG. 2: this application low pressure intelligent monitoring end schematic diagram.
Reference numerals: 100. a concentrator; 110. a high-speed carrier module; 200. a low-voltage intelligent monitoring end; 210. a carrier monitoring module; 211. a preload comparison unit; 212. preloading a modulation unit; 213. a dynamic monitoring unit; 214. a carrier monitoring unit; 220. a data configuration module; 221. a format conversion unit; 222. a network transformer; 230. a carrier control module; 231. a carrier control unit; 232. a control communication unit; 300. and an application end.
Detailed Description
The following detailed description of the present application, taken in conjunction with the accompanying drawings, is provided to facilitate the understanding and appreciation of the present technology.
Referring to fig. 1, a bypass data monitoring system based on power line carrier includes a concentrator 100 and a low-voltage intelligent monitoring terminal 200;
the concentrator 100 includes a high-speed carrier module 110, where the high-speed carrier module 110 includes a monitoring feedback unit, a carrier generation unit, a waveform storage unit, a waveform modulation unit, and a preload simulation unit; firstly, the concentrator 100 is provided, the physical location of the concentrator 100 is generally set at the user side, the concentrator 100 outputs a carrier signal to a three-phase circuit through a high-speed carrier unit, and in order to solve the interference of waveform reading caused by the set frequency, waveform and amplitude factors, because not only one concentrator 100 is provided on a three-phase power transmission line, but a plurality of concentrators 100 output the same or similar waveforms to influence each other, the present application firstly stores different carrier waveforms, such as the shapes of positive harmonics, triangular waves, square waves, sawtooth waves and the like, and the corresponding proportions under the shapes, such as the rising slope and the falling slope of triangular waves and the like, through a waveform storage unit, the concentrator 100 can configure a plurality of waveforms, specifically, perform modulation through a carrier output circuit, and perform switching on different modulation circuit modules, and at the same time, the modulation frequency and the modulation amplitude can also be configured correspondingly, it should be noted that the output range of the above signals still needs to meet the specification of "low voltage power line high speed carrier communication interconnection technical specification", the modulation frequency reflects the data period of the waveform, and the modulation amplitude reflects the maximum amplitude of the waveform, for example, the modulation amplitude is 5, then the output signal may correspond to a voltage value between 0 and 5. The above contents are correspondingly set according to the monitoring feedback signal received by the monitoring feedback unit, because the monitoring feedback signal reflects the carrier wave or the interference condition in the existing power transmission line, the corresponding waveform which does not affect the circuit transmission is selected according to the interference condition, so as to output the preloaded waveform, after the preloaded waveform is output, the output of the preloaded waveform is needed to be output according to the actually needed data field, and the output of the preloaded waveform is to judge whether the preloaded waveform meets the output requirement, because the data content corresponding to the preloaded waveform is known at the receiving end, the configuration of the preloaded waveform can be completed through the comparison of the receiving end.
The monitoring feedback unit is used for receiving a monitoring feedback signal of the low-voltage intelligent monitoring end 200 and analyzing the monitoring feedback signal to generate waveform characteristics, modulation characteristics and preloading data; the monitoring feedback unit also receives the carrier signal through a wireless network. First, the monitoring feedback unit receives a corresponding monitoring feedback signal in a data network manner, that is, the low-voltage intelligent monitoring terminal 200 uploads data to the application terminal 300, and then the application terminal 300 sends the data in a network signal manner, because the purpose of the monitoring feedback unit is to improve carrier transmission efficiency and reduce a distortion rate of carrier data, a corresponding waveform characteristic, a modulation characteristic and pre-load data are configured in the monitoring feedback signal, and a preferred waveform characteristic and a preferred modulation characteristic are obtained after a waveform in the power transmission line is analyzed according to actual conditions during monitoring of the feedback signal, and then corresponding data are configured according to the waveform characteristic and the modulation characteristic.
The waveform storage unit is stored with a plurality of carrier waveforms in advance, each carrier waveform corresponds to a waveform characteristic, the waveform storage unit calls the corresponding carrier waveform to the carrier generation unit according to the received waveform characteristic, the waveform storage unit realizes the pre-configuration of the waveform, wherein the carrier waveform corresponds to an instruction of the carrier waveform with the corresponding characteristic, because a hardware circuit part sets different instructions according to different waveform types during design, and when the corresponding unit receives a specific instruction, the circuit is adjusted or configured to output the corresponding waveform according to data to be sent.
The waveform modulation unit generates a modulation frequency and a modulation amplitude to the carrier generation unit according to the received modulation characteristics, and the modulation frequency and the modulation amplitude corresponding to the waveform modulation unit are both sent to the corresponding carrier output circuit in an instruction mode so as to achieve the effect of configuring the carrier output circuit.
The carrier generation unit comprises a carrier output circuit, and the carrier generation unit configures the carrier output circuit according to the modulation frequency, the modulation amplitude and the carrier waveform, so that the characteristics of the carrier signal output by the carrier output circuit correspond to the modulation frequency, the modulation amplitude and the carrier waveform; the carrier generation unit responds to the generated corresponding control instruction to configure a corresponding carrier output circuit, the carrier output circuit can realize the modulation output of the waveform corresponding to the electric signal control, the plurality of independent waveform output circuits are switched through the controller in response to the instruction, the modulation proportion of each waveform output circuit can be switched through the output signal of the controller, and the configuration and the output of the modulation waveform can be realized through the PWM modulation circuit to configure the corresponding waveform.
The high-speed carrier module 110 sends a carrier signal through the carrier output circuit, the preload simulation unit generates a preload signal according to the received preload data, and the high-speed carrier module 110 sends the preload signal as the carrier signal; the high-speed carrier module 110 outputs the carrier signal through the carrier output circuit, and the preload analog unit generates the received preload data into the corresponding preload signal for outputting, thereby realizing the output effect of the carrier signal through phase change.
The low-voltage intelligent monitoring terminal 200 comprises a carrier monitoring module 210, a data configuration module 220 and a carrier control module 230;
the carrier monitoring module 210 includes a preload comparison unit 211, a preload modulation unit 212, a dynamic monitoring unit 213, and a carrier monitoring unit 214; the carrier monitor module 210 is connected in parallel with the A, B, C three phases and neutral of the concentrator 100.
The preload comparison unit 211 is configured to identify and receive a preload signal that is a carrier signal, the preload comparison unit 211 is configured with a preload comparison condition, the preload comparison unit 211 compares preload data with the preload signal, if the comparison result satisfies the preload comparison condition, preload modulation is completed and a feature loading signal is generated according to the preload signal, if the comparison result does not satisfy the preload comparison condition, the preload modulation unit 212 generates a preload feedback feature according to the corresponding comparison result, and corrects the monitoring feedback signal according to the preload feedback feature to generate a new monitoring feedback signal and send the new monitoring feedback signal to the high speed carrier module 110; and if the total deviation value in the comparison result exceeds a preset total deviation threshold value, the comparison condition is judged not to be satisfied, or if the deviation value of a preset special item in the comparison result exceeds a preset special deviation threshold value, the comparison condition is judged not to be satisfied. Since the preload data is known, and the preload signal after processing the preload data has two situations, one is that the total loss and the interference are small in the actual transmission, transmission and reception processes, the obtained signal is relatively complete, the second is that the interference or the loss occurs, and the obtained result has a deviation, so the result can be directly obtained through comparison, but it should be noted that the comparison condition is divided into two situations, the first is that the deviation value of the whole is greater than the preset value, and the second is that the deviation value of the key data is greater than the preset value, and both situations are considered that the non-preload condition is not satisfied, then the listening feedback signal needs to be corrected, and the listening feedback signal can be generated again according to the total deviation or the deviation result of the key data.
The dynamic monitoring unit 213 is configured with a dynamic monitoring strategy by which to monitor the carrier signal in real time and generate a monitoring feedback signal. The dynamic monitoring strategy comprises a waveform compensation step, wherein a waveform loss threshold value is configured in the waveform compensation step, a waveform loss value is determined according to comparison of three-phase carrier signals in the waveform compensation step, and if the waveform loss value is larger than the waveform loss threshold value, a waveform compensation signal is generated according to the carrier signals; the dynamic monitoring strategy comprises an attenuation compensation step, wherein an attenuation compensation threshold is configured in the attenuation compensation step, an attenuation value is determined according to a carrier signal, and if the attenuation value is greater than the attenuation compensation threshold, an attenuation compensation signal is generated according to the corresponding attenuation value; firstly, three-phase carrier wave comparison can cause pulse interference because the three-phase power transmission lines are close to each other, so that a loss value can be determined by comparing and analyzing three-phase carrier wave signals, and then a corresponding waveform is compensated according to the loss value.
The carrier monitoring unit 214 receives a carrier signal in real time and uploads the carrier signal; the carrier monitoring unit 214 receives a carrier signal and uploads the signal in real time, specifically, the data configuration module 220 is implemented, the data configuration module 220 includes a format conversion unit 221 and a network transformer 222, the format conversion unit 221 is configured to convert a data format of carrier data corresponding to the carrier signal uploaded by the carrier monitoring unit 214, and is specifically configured as an ethernet control chip, and the network transformer 222 is configured to transform the converted carrier data and upload the transformed carrier data to the application terminal 300. The format conversion unit 221 of the specific data configuration module 220 converts the carrier data in the SPI data format into carrier data in the ethernet format, and then transmits the data to the application 300 through the network transformer 222. The carrier monitoring unit 214 receives a carrier signal in real time through a carrier separation strategy and uploads the carrier signal; first, the function of the carrier monitoring unit 214 is explained, and generally, since the carrier characteristics are known, a monitoring range can be configured according to the carrier characteristics, so that the carrier monitoring unit can quickly separate a target carrier signal from a waveform, and thus, accurate knowledge of a data monitoring result in a power transmission system in which carrier signals with different types of characteristics are superimposed can be improved.
The separation loading unit 215 is configured with a separation loading database, the separation loading database stores a plurality of carrier separation strategies in advance, the carrier separation strategies use the characteristic loading signals as indexes, and the separation loading unit calls corresponding carrier separation strategies according to the characteristic loading signals and configures the obtained carrier separation strategies to corresponding carrier monitoring units. The carrier separation strategy is configured with a plurality of carrier characteristics, each carrier characteristic corresponds to a carrier priority value, and the carrier monitoring unit extracts a carrier signal from the power transmission current according to the carrier priority value. The carrier separation strategy is a strategy for separating a carrier signal from a power transmission waveform, in particular to a strategy for carrying out characteristic identification on the power transmission waveform, because the verification of a preloaded signal means that the carrier mode is determined, although the data content of the carrier signal is position, the characteristics of the carrier signal are known, different signals are pre-identified by utilizing the characteristics of the signal transmission cycle, the waveform shape, the amplitude and the like, corresponding priority values are obtained according to the actual identification similarity and the result, if the sum of the priority values is greater than the preset value, the corresponding carrier signal is captured, so that the carrier signal can be separated from the whole power transmission waveform, the corresponding carrier identification strategy is determined only by aiming at a characteristic loading signal (generated according to the preloaded signal), meanwhile, the carrier separation strategy can also carry out the use of identification logic sequence according to the priority values of different waveform characteristics, and the characteristics which are easy to determine are preferentially identified, and obtaining the logic of the acquired data according to the characteristic until the data content is obtained to finish the acquisition of the carrier signal once.
The high-speed carrier module 110 further includes an attenuation compensation unit, which is connected to the carrier output circuit and configures the carrier output circuit according to the attenuation compensation signal. The high-speed carrier module 110 further includes a waveform compensation unit, which is connected to the carrier output circuit and configures the carrier output circuit according to the waveform compensation signal.
The carrier control module 230 includes a carrier control unit 231 and a control communication unit 232; the carrier control unit 231 is configured to output a carrier control signal to the concentrator 100. The carrier control module 230 further includes a control communication unit 232, and the control communication unit 232 is connected to the application terminal 300, the carrier monitoring unit and the control communication unit 232, respectively. The control communication unit 232 and the application terminal 300, and the carrier monitoring unit and the control communication unit 232 communicate with each other through a Universal Asynchronous Receiver Transmitter (UART).
Of course, the above is only a typical example of the present application, and besides, the present application may have other embodiments, and all technical solutions formed by using equivalent substitutions or equivalent transformations fall within the scope of the present application.
Claims (10)
1. The utility model provides a bypass data monitoring system based on power line carrier which characterized in that: the system comprises a concentrator and a low-voltage intelligent monitoring end;
the concentrator comprises a high-speed carrier module, wherein the high-speed carrier module comprises a monitoring feedback unit, a carrier generation unit, a waveform storage unit, a waveform modulation unit and a preloading simulation unit; the monitoring feedback unit is used for receiving a monitoring feedback signal of the low-voltage intelligent monitoring end and analyzing the monitoring feedback signal to generate waveform characteristics, modulation characteristics and preloading data; the waveform storage unit is stored with a plurality of carrier waveforms in advance, each carrier waveform corresponds to a waveform characteristic, the waveform storage unit calls the corresponding carrier waveform to the carrier generation unit according to the received waveform characteristic, the waveform modulation unit generates a modulation frequency and a modulation amplitude to the carrier generation unit according to the received modulation characteristic, the carrier generation unit comprises a carrier output circuit, and the carrier generation unit configures the carrier output circuit according to the modulation frequency, the modulation amplitude and the carrier waveform so as to enable the characteristics of the carrier signal output by the carrier output circuit to correspond to the modulation frequency, the modulation amplitude and the carrier waveform; the high-speed carrier module sends a carrier signal through the carrier output circuit, the preloading simulation unit generates a preloading signal according to received preloading data, and the high-speed carrier module sends the preloading signal as the carrier signal;
the low-voltage intelligent monitoring end comprises a carrier monitoring module, and the carrier monitoring module comprises a preloading comparison unit, a preloading modulation unit, a dynamic monitoring unit, a carrier monitoring unit and a separation loading unit; the system comprises a preload comparison unit, a preload modulation unit and a high-speed carrier module, wherein the preload comparison unit is used for identifying and receiving a preload signal serving as a carrier signal, the preload comparison unit is configured with preload comparison conditions, the preload comparison unit compares preload data with the preload signal, if the comparison result meets the preload comparison conditions, a characteristic load signal is generated according to the preload signal, if the comparison result does not meet the preload comparison conditions, the preload modulation unit generates preload feedback characteristics according to the corresponding comparison result, and corrects a monitoring feedback signal according to the preload feedback characteristics to generate a new monitoring feedback signal and send the new monitoring feedback signal to the high-speed carrier module; the dynamic monitoring unit is configured with a dynamic monitoring strategy, and monitors a carrier signal in real time and generates a monitoring feedback signal through the dynamic monitoring strategy; the carrier monitoring unit receives a carrier signal in real time through a carrier separation strategy and uploads the carrier signal; the separation loading unit is configured with a separation loading database, the separation loading database is pre-stored with a plurality of carrier separation strategies, the carrier separation strategies take the characteristic loading signals as indexes, the separation loading unit calls the corresponding carrier separation strategies according to the characteristic loading signals, and the obtained carrier separation strategies are configured to the corresponding carrier monitoring units.
2. A power carrier based bypass data monitoring system according to claim 1, wherein: and if the total deviation value in the comparison result exceeds a preset total deviation threshold value, the comparison condition is judged not to be satisfied, or if the deviation value of a preset special item in the comparison result exceeds a preset special deviation threshold value, the comparison condition is judged not to be satisfied.
3. A power carrier-based bypass data monitoring system according to claim 1, wherein: the carrier separation strategy is configured with a plurality of carrier characteristics, each carrier characteristic corresponds to a carrier priority value, and the carrier monitoring unit extracts a carrier signal from the power transmission current according to the carrier priority value.
4. A power carrier-based bypass data monitoring system according to claim 3, wherein: the carrier monitoring module is connected with A, B, C three phases and a zero line of the concentrator in parallel, the dynamic monitoring strategy comprises a waveform compensation step, a waveform loss threshold value is configured in the waveform compensation step, the waveform compensation step determines a waveform loss value according to a carrier signal of the three phases, and if the waveform loss value is larger than the waveform loss threshold value, a waveform compensation signal is generated according to the carrier signal;
the high-speed carrier module further comprises a waveform compensation unit, the waveform compensation unit is connected to the carrier output circuit, and the waveform compensation unit configures the carrier output circuit according to the waveform compensation signal.
5. A power carrier-based bypass data monitoring system according to claim 1, wherein: the dynamic monitoring strategy comprises an attenuation compensation step, wherein an attenuation compensation threshold is configured in the attenuation compensation step, an attenuation value is determined according to a carrier signal, and if the attenuation value is greater than the attenuation compensation threshold, an attenuation compensation signal is generated according to the corresponding attenuation value;
the high-speed carrier module further comprises an attenuation compensation unit, the attenuation compensation unit is connected to the carrier output circuit, and the attenuation compensation unit configures the carrier output circuit according to the attenuation compensation signal.
6. A power carrier-based bypass data monitoring system according to claim 1, wherein: the low-voltage intelligent monitoring terminal further comprises a data configuration module, the data configuration module comprises a format conversion unit and a network transformer, the format conversion unit is used for converting the data format of carrier data corresponding to the carrier signal uploaded by the carrier monitoring unit, and the network transformer is used for carrying out transformation processing on the converted carrier data and uploading the carrier data to an application terminal.
7. A power carrier-based bypass data monitoring system according to claim 3, wherein: the low-voltage intelligent monitoring end further comprises a carrier control module, and the carrier control module is used for outputting carrier control signals to the concentrator.
8. A power carrier-based bypass data monitoring system according to claim 7, wherein: the carrier control module also comprises a control communication unit which is respectively connected with the application terminal and the carrier monitoring unit.
9. A power carrier-based bypass data monitoring system according to claim 8, wherein: the control communication unit and the application terminal, and the carrier monitoring unit and the control communication unit are communicated with each other through a universal asynchronous receiving and transmitting transmitter.
10. A power carrier-based bypass data monitoring system according to claim 1, wherein: the monitoring feedback unit also receives the carrier signal through a wireless network.
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| CN205901757U (en) * | 2016-07-15 | 2017-01-18 | 国网江西省电力科学研究院 | Carrier communication module intelligent detecting system |
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| CN111667685A (en) * | 2020-07-10 | 2020-09-15 | 国网信通亿力科技有限责任公司 | Bypass data monitoring system based on power line carrier |
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