CN101286766A - Low voltage electric power carrier communication scheme - Google Patents
Low voltage electric power carrier communication scheme Download PDFInfo
- Publication number
- CN101286766A CN101286766A CNA2007100738947A CN200710073894A CN101286766A CN 101286766 A CN101286766 A CN 101286766A CN A2007100738947 A CNA2007100738947 A CN A2007100738947A CN 200710073894 A CN200710073894 A CN 200710073894A CN 101286766 A CN101286766 A CN 101286766A
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- Prior art keywords
- carrier
- low voltage
- electric power
- carrier communication
- voltage electric
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention relates to a low voltage power line carrier communication proposal. One or a plurality of wave trappers and relay machines are arranged on low voltage (220V-/380V-) power lines to divide the line into a plurality of short carrier lines, thereby greatly improving the carrier transmission characteristics of each line section, restraining the crosstalk of carrier signals and remarkably enhancing the communication effect of the carrier. The relay machine leads the wave trapper to let off useful signals and keeps the carrier signal of the whole line going smoothly.
Description
Affiliated technical field
The invention belongs to the low voltage electric power carrier communication field, relate to low-voltage power carrier centralized automatic meter-reading technology.
Background technology
Low pressure (220V ~/380V ~) power line carrier, PLC, up to the present, people have adopted the zero crossing communication technology, narrow-band FM technology, broadband spread spectrum technology, multi-carrier communication technology, frequency hopping communications technology, adopt relay, added means such as high-power, but, all fail to reach comparatively desirable communication efficiency because the carrier transmission performance of circuit is unstable and ambient interferences is excessive.Also the someone proposes and has implemented to install trap additional on the inlet wire of each household, improves the scheme of circuit transmission characteristic, raising communication efficiency, but because the difficulty of its volume, cost and construction, poor effect always.
Summary of the invention
The present invention reaches and improves the low voltage electric power carrier communication effect by transforming the carrier transmission performance of low-voltage circuit itself;
Technical scheme provided by the present invention is: install trap and relay equipment additional on low pressure (220V ~/380V ~) power circuit.The low-voltage circuit of low-voltage power transformer output is connected to the end user, in the centre of low-voltage circuit, installs one or more traps and relay equipment additional, the carrier signal of relay equipment switching trap both sides.
Beneficial effect of the present invention: the key of low pressure (220V ~/380V ~) power circuit carrier communication difficulty: carrier transmission performance is unstable and ambient interferences is excessive; Install trap additional between low-voltage circuit, circuit is separated into a section short carrier line, improve the carrier transmission performance of each section greatly, crosstalking of suppressed carrier signal improves the communication efficiency of carrier wave greatly.Relay equipment is skipped trap with every section useful signal, makes whole piece circuit carrier signal unimpeded.
Embodiment
Adopt big saturation current inductance and electric capacity to form the LC shunt-resonant circuit and do trap, the number of users string of pressing distance or connection can be that triple line seals in simultaneously to low-voltage circuit, also can only seal in to zero line, but also three-phase and four-line seals in simultaneously; Concentrator is installed near the transformer the low-voltage circuit; At each trap place relay equipment is installed, relay equipment receives the opposite side that amplification is transferred to trap with the signal of trap one side; Carrier electric energy meter at the subscriber's drop place by the order of relay equipment reception concentrator, is uploaded self electric energy meter data by relay equipment again.
Claims (2)
1, a kind of low voltage electric power carrier communication scheme is characterized in that: install trap and relay equipment additional on low pressure (220V ~/380V ~) power circuit.
2, low voltage electric power carrier communication scheme according to claim 1, its further feature is: in the centre of low-voltage circuit, install one or more traps and relay equipment additional, the carrier signal of relay equipment switching trap both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100738947A CN101286766A (en) | 2007-04-12 | 2007-04-12 | Low voltage electric power carrier communication scheme |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100738947A CN101286766A (en) | 2007-04-12 | 2007-04-12 | Low voltage electric power carrier communication scheme |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101286766A true CN101286766A (en) | 2008-10-15 |
Family
ID=40058762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100738947A Pending CN101286766A (en) | 2007-04-12 | 2007-04-12 | Low voltage electric power carrier communication scheme |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101286766A (en) |
-
2007
- 2007-04-12 CN CNA2007100738947A patent/CN101286766A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| DD01 | Delivery of document by public notice |
Addressee: Liu Aimin Document name: Notification that Application Deemed to be Withdrawn |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20081015 |