CN104122482A - System and method of line recognition adopting power line carrier communication - Google Patents
System and method of line recognition adopting power line carrier communication Download PDFInfo
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- CN104122482A CN104122482A CN201410383552.5A CN201410383552A CN104122482A CN 104122482 A CN104122482 A CN 104122482A CN 201410383552 A CN201410383552 A CN 201410383552A CN 104122482 A CN104122482 A CN 104122482A
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Abstract
The invention relates to a system and a method of line recognition adopting power line carrier communication. The system comprises a plurality of station recognition instruments connected with the low-voltage wire outlet end of a low-voltage power supply line and a far-end recognition terminal connected with the output end of the low-voltage power supply line. The method comprises the following steps: S1, transmitting transmission signals to the respective low-voltage wire outlet end of the low-voltage power supply line respectively by the station recognition instruments; S2, receiving a plurality of carrier signals from the low-voltage wire outlet end by the far-end recognition terminal, analyzing and obtaining all phase line signals of the low-voltage wire outlet end. By adopting the power line carrier communication technology and setting the station recognition instruments and the far-end recognition terminal, supply transformer distribution rooms for conveniently and quickly testing power consumers are provided, and voltage power supply lines in electric power systems can be accurately detected.
Description
Technical field
The present invention relates to electric power recognition system, be specifically related to a kind of power line carrier communication that adopts and carry out identification of lines system and identification side.
Background technology
In low-voltage supply line, generally adopt pole line and cable from transformer platform area to resident and residential building power supply.Connecing in house lead in operation of reality, due to urban architecture and urban planning cause, connect house lead in and mostly install in batches, and the time period crossing over is longer.Thereby cause the archives confusion of user power utilization information and reservation, the user profile phenomenon that there is any discrepancy in electricity consumption client and the Electric Power Marketing System of transformer platform area actual load.Thereby examination and accident maintenance power failure operation to single district's line loss are greatly affected.But because pole line and underground cable are blocked by buildings mostly, some cabling is in disorder, cannot determine the intersection that connects transformer platform area, particularly several districts under house lead in by observing, there is crossover phenomenon.Power supply enterprise's marketing and electric power accident rush-repairing are brought to inconvenience, for this reason, management of power use department often need to generally investigate the subscriber data in all kinds of districts, comprise which platform transformer-supplied user is by, which by busbar branches powered, by which powered mutually, realize the fine-grained management of platform district, for consumption reduction impairment provides basic data really and accurately.
Summary of the invention
The object of the present invention is to provide a kind of power line carrier communication that adopts to carry out identification of lines system and recognition methods, by station institute's identifier and far-end identification terminal are set, make frequency range analysis transformer station and the line order of consumer positioning circuit exactly by power line carrier communication data and signal of communication.
In order to achieve the above object, the present invention is achieved through the following technical solutions:
A kind of power line carrier communication that adopts carries out identification of lines system, is characterized in, this system comprises:
The institute's identifier of standing, is connected with the low-pressure line-outgoing end of low-voltage supply line;
Far-end identification terminal, is connected with the output terminal of low-voltage supply line.
Adopt power line carrier communication to carry out a method for identification of lines, be characterized in, the method comprises following steps:
S1, multiple station institute identifier sends respectively signal transmission to each self-corresponding low-voltage supply line low-pressure line-outgoing end;
S2, far-end identification terminal receives the carrier signal from multiple low-pressure line-outgoing ends, and resolves the phase line signal that obtains all low-pressure line-outgoing ends.
Preferably, described step S1 comprises following steps:
Each described station institute identifier arranges particular substation and distinguishes signal;
Each described station institute identifier arranges respectively the carrier signal of A, B, C three-phase line in corresponding low-voltage supply line low-pressure line-outgoing end;
The carrier signal modulation that particular substation is distinguished signal, three-phase line by each described station institute identifier forms signal transmission and is sent in low-voltage supply line.
Preferably, in the time that each described station institute identifier arranges particular substation and distinguishes signal, it is the signal with special frequency channel that the particular substation of corresponding transformer station is distinguished signal setting by this station institute identifier.
Preferably, in the time that each described station institute identifier arranges respectively the carrier signal of A, B, C three-phase line in corresponding low-pressure line-outgoing end, this station institute identifier injects with frequency carrier signal to A, B, the timesharing of C three-phase line respectively, and the carrier signal of injecting on every phase circuit is all contained to the identification code of this phase circuit;
This station institute identifier is divided three timeslices and is sent in turn the carrier signal that contains phase circuit identification code separately to the corresponding phase line of low-voltage supply line low-pressure line-outgoing end.
Preferably, described step S2 comprises following steps:
In the same period, described far-end identification terminal identifies the carrier signal of different low-pressure line-outgoing ends;
Described far-end identification terminal parsed respectively in this period, the carrier signal of corresponding phase line in multiple low-pressure line-outgoing ends;
After three-wheel is periodically searched, described far-end identification terminal catch all can lock-on signal, and by the treated demonstration of information after resolving to this far-end identification terminal.
Preferably, in the time that described far-end identification terminal is identified the carrier signal of different low-pressure line-outgoing ends, distinguish signal by resolving multiple particular substation, identify the special frequency channel of different low-pressure line-outgoing ends, the concrete corresponding low-pressure line-outgoing end of judgement.
Preferably, when described far-end identification terminal is after three-wheel is periodically searched, the signal intensity of preserving all signals of catching;
This far-end identification terminal is analyzed respectively signal intensity, the signal data of all signals of catching, and the strongest signal of signal intensity in the same phase line of inputting is processed, and this signal data is shown to this far-end identification terminal in same low-pressure line-outgoing end.
The present invention compared with prior art has the following advantages:
The present invention is by adopting power-line carrier communication, and station institute's identifier and far-end identification terminal be set, provide and conveniently tested out the corresponding supply transformer platform of power consumer district, can precisely detect the power voltage supply circuit in electric system.
Brief description of the drawings
Fig. 1 is a kind of one-piece construction schematic diagram that adopts power line carrier communication to carry out identification of lines system of the present invention.
Fig. 2 is a kind of overall flow figure that adopts power line carrier communication to carry out the method for identification of lines of the present invention.
Embodiment
Below in conjunction with accompanying drawing, by describing a preferably specific embodiment in detail, the present invention is further elaborated.
As shown in Figure 1, a kind of power line carrier communication that adopts carries out identification of lines system, and this system comprises: multiple station institute identifiers 10 that are connected with the low-pressure line-outgoing end of low-voltage supply line; The far-end identification terminal 20 being connected with the output terminal of low-voltage supply line.
Three output terminals of each station institute identifier 10 connect with the triple-phase line of corresponding low-pressure line-outgoing end respectively.Two input ends of far-end identification terminal 20 are connected with the output terminal of low-voltage supply line respectively.
Adopt power line carrier communication to carry out a method for identification of lines, the method comprises following steps:
S1, multiple station institute identifier 10 sends respectively signal transmission to each self-corresponding low-voltage supply line low-pressure line-outgoing end.This step S1 comprises following steps:
Each station institute identifier 10 arranges particular substation and distinguishes signal.It is the signal with special frequency channel that the particular substation of corresponding transformer station is distinguished signal setting by each station institute identifier 10.
In the present embodiment, multiple station institute identifier 10 can be made as respectively 50kHZ, 60kHZ, 70kHZ etc. by the special frequency channel of different low-pressure line-outgoing ends.
Each station institute identifier 10 arranges respectively the carrier signal of A, B, C three-phase line in corresponding low-voltage supply line low-pressure line-outgoing end; In the time that each station institute identifier 10 arranges respectively the carrier signal of A, B, C three-phase line in corresponding low-pressure line-outgoing end, this station institute identifier 10 injects with frequency carrier signal to A, B, the timesharing of C three-phase line respectively, and the carrier signal of injecting on every phase circuit is all contained to the identification code of this phase circuit.
This station institute identifier 10 is divided three timeslices and is sent in turn the carrier signal that contains phase circuit identification code separately to the corresponding phase line of low-voltage supply line low-pressure line-outgoing end.
The carrier signal modulation that particular substation is distinguished signal, three-phase line by each station institute identifier 10 forms signal transmission and is sent in low-voltage supply line.
S2, far-end identification terminal 20 receives the carrier signal from multiple low-pressure line-outgoing ends, and resolves the phase line signal that obtains all low-pressure line-outgoing ends.Step S2 comprises following steps:
In the same period, far-end identification terminal 20 identifies the carrier signal of different low-pressure line-outgoing ends; Distinguish signal by resolving multiple particular substation, identify the special frequency channel of different low-pressure line-outgoing ends, the concrete corresponding low-pressure line-outgoing end of judgement.
Far-end identification terminal 20 parsed respectively in this period, the carrier signal of corresponding phase line in multiple low-pressure line-outgoing ends;
After three-wheel is periodically searched, far-end identification terminal 20 catch all can lock-on signal, and by the treated demonstration of information after resolving to this far-end identification terminal 20.
When far-end identification terminal 20 is after three-wheel is periodically searched, the signal intensity of preserving all signals of catching.
Far-end identification terminal 20 is analyzed respectively signal intensity, the signal data of all signals of catching, the strongest signal of signal intensity in the same phase line of inputting in same low-pressure line-outgoing end is processed, and this signal data is shown to this far-end identification terminal 20.
The embodiment of the present invention 1:
At institute of each low-pressure line-outgoing end installation station identifier 10, and the institute's identifier 10 of respectively standing install the ticket reserving time respectively poll to the obstructed carrier signal of transmission frequency on circuit, as shown in Figure 2, multiple station institute identifier 10 poll transmitted signals 1,2,3, poll transmitted signal 4,5,6, and poll transmitted signal 7,8,9.
Far-end identification terminal 20 has frequency follows and frequency analysis function, captures the signal in circuit, and follow function locking signal frequency point sense data and intensity by frequency in particular moment, for example, capture signal 2, signal 6, signal 7; (because signal produces radiation through cable duct, in receiving end instrument, read the carrier signal on other bus in the distance; But because instrument A/B/C adopts poll sending mode, can not the same time capture the two paths of signals that same instrument sends).
After three-wheel is periodically searched, far-end identification terminal 20 can capture all signals that capture, and tracer signal intensity (if radiancy is inadequate in circuit, possible part circuit signal capture is incomplete).
Far-end identification terminal 20 captures the data in signal intensity and signal by analysis, by tell signal intensity the strongest for lookup result.For example the strongest by relatively obtaining the signal intensity of signal 5, this circuit is the B phase of B outlet so.
Although content of the present invention has been done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.Read after foregoing those skilled in the art, for multiple amendment of the present invention and substitute will be all apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (8)
1. adopt power line carrier communication to carry out an identification of lines system, it is characterized in that, this system comprises:
The institute's identifier (10) of standing, is connected with the low-pressure line-outgoing end of low-voltage supply line;
Far-end identification terminal (20), is connected with the output terminal of low-voltage supply line.
2. adopt power line carrier communication to carry out a method for identification of lines, it is characterized in that, the method comprises following steps:
S1, multiple station institute's identifiers (10) send respectively signal transmission to each self-corresponding low-voltage supply line low-pressure line-outgoing end;
S2, far-end identification terminal (20) receives the carrier signal from multiple low-pressure line-outgoing ends, and resolves the phase line signal that obtains all low-pressure line-outgoing ends.
3. adopt as claimed in claim 2 power line carrier communication to carry out the method for identification of lines, it is characterized in that, described step S1 comprises following steps:
Each described station institute's identifier (10) arranges particular substation and distinguishes signal;
Each described station institute's identifier (10) arranges respectively the carrier signal of A, B, C three-phase line in corresponding low-voltage supply line low-pressure line-outgoing end;
The carrier signal modulation formation signal transmission that particular substation is distinguished signal, three-phase line by each described station institute's identifier (10) is sent in low-voltage supply line.
4. adopt as claimed in claim 3 power line carrier communication to carry out the method for identification of lines, it is characterized in that, in the time that each described station institute's identifier (10) arranges particular substation differentiation signal, it is the signal with special frequency channel that the particular substation of corresponding transformer station is distinguished signal setting by this station institute identifier (10).
5. adopt as claimed in claim 4 power line carrier communication to carry out the method for identification of lines, it is characterized in that, in the time that each described station institute's identifier (10) arranges respectively the carrier signal of A, B, C three-phase line in corresponding low-pressure line-outgoing end, this station institute identifier (10) injects with frequency carrier signal to A, B, the timesharing of C three-phase line respectively, and the carrier signal of injecting on every phase circuit is all contained to the identification code of this phase circuit;
This station institute identifier (10) is divided three timeslices and is sent in turn the carrier signal that contains phase circuit identification code separately to the corresponding phase line of low-voltage supply line low-pressure line-outgoing end.
6. adopt as claimed in claim 5 power line carrier communication to carry out the method for identification of lines, it is characterized in that, described step S2 comprises following steps:
In the same period, described far-end identification terminal (20) identifies the carrier signal of different low-pressure line-outgoing ends;
Described far-end identification terminal (20) parsed respectively in this period, the carrier signal of corresponding phase line in multiple low-pressure line-outgoing ends;
After three-wheel is periodically searched, described far-end identification terminal (20) catch all can lock-on signal, and by the treated demonstration of information after resolving to this far-end identification terminal (20).
7. adopt as claimed in claim 6 power line carrier communication to carry out the method for identification of lines, it is characterized in that, in the time that described far-end identification terminal (20) is identified the carrier signal of different low-pressure line-outgoing ends, distinguish signal by resolving multiple particular substation, identify the special frequency channel of different low-pressure line-outgoing ends, the concrete corresponding low-pressure line-outgoing end of judgement.
8. adopt as claimed in claim 6 power line carrier communication to carry out the method for identification of lines, it is characterized in that, when described far-end identification terminal (20) is after three-wheel is periodically searched, the signal intensity of preserving all signals of catching;
This far-end identification terminal (20) is analyzed respectively signal intensity, the signal data of all signals of catching, the strongest signal of signal intensity in the same phase line of inputting in same low-pressure line-outgoing end is processed, and this signal data is shown to this far-end identification terminal (20).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410383552.5A CN104122482A (en) | 2014-08-06 | 2014-08-06 | System and method of line recognition adopting power line carrier communication |
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| CN201410383552.5A CN104122482A (en) | 2014-08-06 | 2014-08-06 | System and method of line recognition adopting power line carrier communication |
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Cited By (4)
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| CN105355014A (en) * | 2015-09-24 | 2016-02-24 | 国网山东省电力公司烟台供电公司 | Remote station area user identifier |
| CN105374197A (en) * | 2015-11-19 | 2016-03-02 | 国家电网公司 | Low voltage district electric energy meter phase line identification method |
| CN106501752A (en) * | 2016-09-23 | 2017-03-15 | 国网江西省电力公司电力科学研究院 | A kind of electrical energy meter electricity presses access way automatic identifying method |
| CN110907717A (en) * | 2019-10-24 | 2020-03-24 | 国网天津静海供电有限公司 | Medium voltage line becomes relation discernment appearance |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106501752A (en) * | 2016-09-23 | 2017-03-15 | 国网江西省电力公司电力科学研究院 | A kind of electrical energy meter electricity presses access way automatic identifying method |
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| CN110907717A (en) * | 2019-10-24 | 2020-03-24 | 国网天津静海供电有限公司 | Medium voltage line becomes relation discernment appearance |
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Application publication date: 20141029 |