CN201113557Y - Coupling bridging device for mixing line carrier signal spanning 'line switch ' - Google Patents
Coupling bridging device for mixing line carrier signal spanning 'line switch ' Download PDFInfo
- Publication number
- CN201113557Y CN201113557Y CNU2007200748963U CN200720074896U CN201113557Y CN 201113557 Y CN201113557 Y CN 201113557Y CN U2007200748963 U CNU2007200748963 U CN U2007200748963U CN 200720074896 U CN200720074896 U CN 200720074896U CN 201113557 Y CN201113557 Y CN 201113557Y
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- Prior art keywords
- line
- phase
- coupling
- joint
- carrier signal
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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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- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
The utility model relates to a coupled bridge set for a carrier signal on a joint line to step across a 'line switch', which is connected to a three-phase trolley wire of the joint line. The utility model is characterized in that: the coupled bridge set comprises two coupling capacitors and two combined filters which are respectively connected with the coupling capacitors and connected with each other, wherein, the two coupling capacitors can be respectively connected to different phase lines of the three-phase trolley wire and also can be respectively connected to the same phase line of the three-phase trolley wire. The coupled bridge set for the carrier signal on the joint line to step across the 'line switch' solves the problem of carrier group-net communication for the joint line to step across the 'line switch'.
Description
Technical field
The utility model relates to a kind of carrier signal coupling device of joint line carrier networking communication, especially refers to the coupling bridge-set of carrier wave signal spans " line switching " on the joint line.
Background technology
The medium voltage power line carrier communication is by the electric power networks of power supply, carry out transfer of data with overhead power transmission line and power cable resource, so no longer need to invest in the wireless system for transmitting data that lays new traffic cable or costliness, do not pay the expense that connects yet, therefore, can become one of the preferred manner of urban cells power distribution automation communication mode.
At present, the medium-voltage distribution network mainly is divided into K type (switchyard), P type (ring network structure), three kinds on W type (open air).Wherein, at radial pattern K type distribution net work structure,, study comparative maturity at present based on the pure cable shield carrier communication of pouring-in coupled modes; Screen carrier communication at ring network structure P type distribution net work structure, though some application are arranged, but, the carrier networking communication difficulty of joint line is bigger, especially " line switching or bar cutter " coupling bridging technology of crossing on the joint line relates to overhead transmission line and cable line, for overhead transmission line, if " line switching " of three-phase line is when all disconnecting, then carrier communication may be interrupted, therefore, the main difficult point of the coupling of " line switching " on spanning overhead line bridging technology is at overhead transmission line.The on-the-spot test result shows, for overhead transmission line, transmission that carrier signal can " be striden phase " arrives the destination, and (" striding phase " decay is at 7dB ~ 15dB); When the phase line short circuit, carrier signal only produces an additional attenuation (generally at 15dB ~ 20dB), therefore, can " cross over " short dot fully at short dot.But,, need to adopt the coupling bridging technology of crossing over " line switching " if " line switching or the bar cutter " of three-phase line is when all disconnecting.So, one of content that the applicant endeavours to study that Here it is.
The utility model content
The purpose of this utility model is to provide the coupling bridge-set of carrier wave signal spans " line switching " on a kind of joint line, crosses over the carrier networking communication of " line switching " to be suitable for joint line.
The coupling bridge-set of carrier wave signal spans " line switching " on a kind of joint line provided by the utility model, be connected on the three-phase overhead transmission line of joint line, it is characterized in that: comprise two coupling capacitances and two filter joints that link to each other with each coupling capacitance respectively, and two filter joints link to each other.
In the coupling bridge-set of carrier wave signal spans " line switching ", two coupling capacitances are connected on the not isopen of described three-phase overhead transmission line on above-mentioned joint line.
In the coupling bridge-set of carrier wave signal spans " line switching ", two coupling capacitances are connected on the phase isopen of described three-phase overhead transmission line on above-mentioned joint line.
Owing to adopted above-mentioned technical solution, especially two coupling capacitances are connected on the not isopen of described three-phase overhead transmission line, and the advantage of this mode is, when a phase line ground connection, these coupled modes deteriorate to coupled modes mutually, still can proper communication.The utility model has solved the carrier networking communication issue of joint line carrier signal leap " line switching ".
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
As shown in Figure 1, the utility model, that is: the capacitive coupling bridge-set of carrier wave signal spans " line switching " 3 on a kind of joint line, be connected on the three-phase overhead transmission line 4 of joint line, it is characterized in that: comprise two coupling capacitances 1 and two filter joints 2 that link to each other with each coupling capacitance 1 respectively, and two filter joints 2 link to each other.
In the capacitive coupling bridge-set of carrier wave signal spans " line switching " 3, two coupling capacitances 1 are connected on the not isopen of described three-phase overhead transmission line 4 on above-mentioned joint line.
Two coupling capacitances 1 also can be connected on the phase isopen of described three-phase overhead transmission line 4.
When carrier signal need be crossed on overhead transmission line " line switching or bar cutter ", side joint at " line switching or bar cutter " is consistent with a phase line of transmitting terminal or receiving terminal, for example the B phase is consistent with another phase line of transmitting terminal or receiving terminal at " line switching or bar cutter " another side joint.
The maximum characteristics of this Capacitance Coupled bridging technology if transmitting-receiving two-end adopts phase phase capacity coupler, are adopted Use the out-phase mode of connection, utilize a Capacitance Coupled bridger just can realize the bridge joint merit of phase phase carrier line Can, save cost, if transmitting-receiving two-end adopts phase earth capacitance coupler, cross over by " line switching or bar cutter " Both sides adopt " homophase " mode of connection.
Claims (3)
1. the coupling bridge-set of carrier wave signal spans " line switching " on the joint line, be connected on the three-phase overhead transmission line of joint line, it is characterized in that: comprise two coupling capacitances and two filter joints that link to each other with each coupling capacitance respectively, and two filter joints link to each other.
2. the coupling bridge-set of carrier wave signal spans " line switching " on the joint line according to claim 1 is characterized in that: two coupling capacitances are connected on the not isopen of described three-phase overhead transmission line.
3. the coupling bridge-set of carrier wave signal spans " line switching " on the joint line according to claim 1 is characterized in that: two coupling capacitances are connected on the phase isopen of described three-phase overhead transmission line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200748963U CN201113557Y (en) | 2007-09-21 | 2007-09-21 | Coupling bridging device for mixing line carrier signal spanning 'line switch ' |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200748963U CN201113557Y (en) | 2007-09-21 | 2007-09-21 | Coupling bridging device for mixing line carrier signal spanning 'line switch ' |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201113557Y true CN201113557Y (en) | 2008-09-10 |
Family
ID=39965302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200748963U Expired - Lifetime CN201113557Y (en) | 2007-09-21 | 2007-09-21 | Coupling bridging device for mixing line carrier signal spanning 'line switch ' |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201113557Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104935048A (en) * | 2015-06-26 | 2015-09-23 | 柳州市自动化科学研究所 | Method for realizing charging and discharging control of lithium battery pack in carrier wave communication mode |
| CN106953666A (en) * | 2017-03-17 | 2017-07-14 | 珠海格力电器股份有限公司 | Circuit, method and communication circuit for transmitting signals |
-
2007
- 2007-09-21 CN CNU2007200748963U patent/CN201113557Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104935048A (en) * | 2015-06-26 | 2015-09-23 | 柳州市自动化科学研究所 | Method for realizing charging and discharging control of lithium battery pack in carrier wave communication mode |
| CN106953666A (en) * | 2017-03-17 | 2017-07-14 | 珠海格力电器股份有限公司 | Circuit, method and communication circuit for transmitting signals |
| WO2018166040A1 (en) * | 2017-03-17 | 2018-09-20 | 珠海格力电器股份有限公司 | Signal transmission circuit and method, and communication circuit |
| CN111224691A (en) * | 2017-03-17 | 2020-06-02 | 珠海格力电器股份有限公司 | Circuit, method and communication circuit for transmitting signals |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI ELECTRIC POWER COMMUNICATION CO., LTD. Free format text: FORMER OWNER: SHANGHAI SINAN ELECTRIC POWER COMMUNICATION CO., LTD. Effective date: 20131121 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 201100 XUHUI, SHANGHAI TO: 200002 HUANGPU, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20131121 Address after: 200002 Shanghai City, Huangpu District Jiangxi Road No. 246 building 3 Patentee after: Shanghai Electric Power Communication Co., Ltd. Patentee after: Institute of water quality, water transfer and environmental monitoring, Nanjing Institute of automation Address before: 201100 No. 2888 Gu Dai Road, Shanghai Patentee before: Shanghai Sinan Electric Power Communication Co., Ltd. Patentee before: Institute of water quality, water transfer and environmental monitoring, Nanjing Institute of automation |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080910 |