CN102800187A - Electricity information transmission system for electricity meters - Google Patents
Electricity information transmission system for electricity meters Download PDFInfo
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- CN102800187A CN102800187A CN2012102537360A CN201210253736A CN102800187A CN 102800187 A CN102800187 A CN 102800187A CN 2012102537360 A CN2012102537360 A CN 2012102537360A CN 201210253736 A CN201210253736 A CN 201210253736A CN 102800187 A CN102800187 A CN 102800187A
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Abstract
The invention relates to the technical field of electric power data communication, and provides an electricity information transmission system for electricity meters. The electricity information transmission system comprises a plurality of intelligent electricity meters, a plurality of branch converters, coaxial cable television cables, a main converter and a concentrated collector, wherein the plurality of branch converters are connected with the intelligent electricity meters by twisted-pairs; the branch converters are used for converting electricity information, which is transmitted in an RS-485 communication interface mode, of the electricity meters into radio frequency signals which meet the transmission requirement of the coaxial cable television cables; the radio frequency signals are transmitted to the main converter by the coaxial cable television cables; the main converter is used for converting the radio frequency signals into the electricity information, which is transmitted in the RS-485 communication interface mode, of the electricity meters; and therefore, the transmission of the electricity information of the electricity meters is completed. The electricity information transmission system overcomes the defects in the prior art; when the electricity information of the electricity meters is transmitted by a coaxial cable television cable network, wires are not needed to be additionally distributed; and moreover, the electricity information transmission system has the characteristics of low interference, low loss, high anti-jamming property and stable impedance, and is beneficial to improving the reliability and the confidentiality of data transmission.
Description
Technical field
The invention belongs to the electric power data communication technical field, relate in particular to a kind of ammeter power information transmission system.
Background technology
At present, the RS-485 communication interface is a kind of interface of the common use of industrial communication equipment, and RS-485 generally adopts the mode of connection of two-wire system, and this mode of connection is the bus type topological structure, promptly on same bus, can articulate 32 nodes (ammeter) at most.
In recent years; Intelligent electric meter uses in intelligent grid widely; As shown in Figure 1, this intelligent electric meter mainly uses RS-485 communication interface output ammeter power information, and each ammeter is connected with ammeter data collector 2 through twisted-pair feeder 1; Each ammeter data collector 2 compiles to be connected to and concentrates collector 3 then, is transferred to electricity meter-reading data center through circuits such as GPRS or Ethernet, optical fiber at last;
But there is following defective in the transmission mode of above-mentioned electric power data shown in Figure 1:
(1), the twisted-pair feeder difficulty of construction is big, and constructed easily and artificial destruction;
(2), various interference of noise;
(3), be subject to thunderbolt and over-voltage protection;
(4), high-frequency information is difficult for maintaining secrecy in transmission, and disturbs other power information transmission equipment easily.
And; In intelligent grid as shown in Figure 1, concentrate each road interface of collector 3 can only insert 32 ammeter data collectors 2, when in intelligent grid, needing the ammeter of more number more; Then need from concentrate collector 3, tell multichannel, could realize this purpose; And, when telling multichannel RS-485 communication twisted-pair feeder, increase the wiring difficulty of intelligent grid from concentrated collector 3, make troubles to the staff.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of ammeter power information transmission system; Be intended to solve the many defectives of intelligent grid that prior art provides; For example use RS-485 communication twisted-pair feeder transferring electric power data to exist signal to disturb, be unfavorable for the transmission of high-frequency signal and when ammeter quantity is too much in netting, the problem of difficult wiring.
The embodiment of the invention is a kind of ammeter power information transmission system that realizes like this, it is characterized in that said system comprises:
Some intelligent electric meters;
With some branch transition devices that said some intelligent electric meters are connected through twisted-pair feeder, said branch transition device converts said intelligent electric meter into meet the cable tv coax transmission radiofrequency signal with the ammeter power information of RS-485 communication interface mode transfer;
Cable tv coax;
Through the main converter that said cable tv coax is connected with said some branch transition devices, said main converter converts the said radiofrequency signal that meets the cable tv coax transmission into RS-485 communication interface mode transfer ammeter power information;
The concentrated collector that is connected with said main converter; Said concentrated collector obtains the ammeter power information with RS-485 communication interface mode transfer after the said main converter conversion, and the ammeter power information after the said conversion is transferred to the electricity meter-reading data center of far-end.
Further, said each branch transition device is connected with several intelligent electric meters through RS-485 communication twisted-pair feeder.
Further, said main converter is provided with several wireless modules, and the transmission frequency of said wireless module is 868MHz to 1.2GHz or 0.01MHz-70MHz.
Further, the corresponding setting of said branch transition device, the corresponding transmission frequency of said branch transition device configuration with said wireless module.
Further, the layout that is connected of said main converter and branch transition device comprises that Y-connection layout, chain connect layout, tree-like connection is arranged and annular is connected a kind of or two or more at least combination in the layout.。
The ammeter power information transmission system that the embodiment of the invention provides comprises some intelligent electric meters, passes through some branch transition devices, cable tv coax, main converter and concentrated collector that twisted-pair feeder is connected with intelligent electric meter; Wherein, The branch transition device converts intelligent electric meter into meet the cable tv coax transmission radiofrequency signal with the ammeter power information of RS-485 communication interface mode transfer; The ammeter power information is transmitted in the cable tv coax net with the pattern of radiofrequency signal; Arrive main converter, main converter converts radiofrequency signal into RS-485 communication interface mode transfer ammeter power information once more, is transferred to the electricity meter-reading data center of far-end through concentrating collector; Accomplish the transmission of ammeter power information; Thereby overcome the existing defective of intelligent grid that prior art provides,, do not needed extra wiring through cable tv coax net transmission ammeter power information; And cable tv coax has low interference low-loss, height is anti-interference and the characteristic of impedance stabilization, and help reliability of data transmission and confidentiality.
Description of drawings
Fig. 1 is the framework synoptic diagram of the ammeter power information transmission system that provides of prior art;
Fig. 2 is the framework synoptic diagram of the ammeter power information transmission system that provides of the embodiment of the invention.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Some branch transition devices, cable tv coax, main converter and concentrated collector that the ammeter power information transmission system that the embodiment of the invention provides comprises some intelligent electric meters, is connected with intelligent electric meter with twisted-pair feeder.
Fig. 2 has provided the structured flowchart of the ammeter power information transmission system that the embodiment of the invention provides, and for the ease of explanation, has only provided the part relevant with the embodiment of the invention among the figure.
The ammeter power information transmission system that the embodiment of the invention provides comprises some intelligent electric meters, passes through some branch transition devices 4, cable tv coax 5 (some cable tv coaxs 5 mutual cable tv coax nets that form), main converter 6 and concentrated collector 3 that twisted-pair feeder is connected with intelligent electric meter, wherein:
Some branch transition devices 4 are connected through twisted-pair feeder with some intelligent electric meters; This branch transition device 4 converts intelligent electric meter into meet cable tv coax 5 transmission radiofrequency signal with the ammeter power information of RS-485 communication interface mode transfer, and the frequency of this radiofrequency signal is 0.01MHz-70MHz and 868MHz-1.2GMHz;
Main converter 6 is connected with some branch transition devices 4 through cable tv coax 5, and this main converter 6 converts radiofrequency signal into RS-485 communication interface mode transfer ammeter power information;
Wherein, above-mentioned cable tv coax 5 is existing concentric cable in order to transmission cable television digital signal, and it has been ripe communication wires network, i.e. cable tv coax net;
Relative, twisted-pair feeder is all adopted in wiring of the prior art, realizes being connected of intelligent electric meter and concentrated collector 3, causes existing difficult wiring, receives problem such as external interference;
And the ammeter power information transmission system that the embodiment of the invention provides adopts existing cable tv coax net to carry out the transmission of ammeter power information; Efficiently solve the problem of above-mentioned technology; And simplified the inside structure of transmission system, reduced cost, concrete as follows:
For example do not need extra wiring, and be difficult for by artificial destruction; The transmission frequency of ammeter power information adopts high-frequency signal transmission, and strong anti-interference performance has been avoided the influence of extraneous factors such as being struck by lightning; Simultaneously, improve the reliability and the confidentiality of transmission data.
In embodiments of the present invention; Be provided with several wireless modules at main converter 6 ends, the corresponding some frequencies of utilization of these several wireless modules, it is respective branches converter 4 successively; Be the corresponding branch transition device 4 of frequency of utilization on each road, effective like this crowded of transmission signals of avoiding;
Simultaneously, in embodiments of the present invention, each branch transition device 4 all connects some intelligent electric meters, and it connects 32 intelligent electric meters at most.
As a preferred embodiment of the present invention; Interface for collector 3 in the abundant superset; The transmission frequency of each the branch transition device 4 in this ammeter power information transmission system is carried out the correspondence configuration, and promptly each branch transition device 4 all has the frequency of utilization corresponding with it;
Wherein, The frequency of utilization scope of branch transition device 4 is 0.01MHz-70MHz and 868MHz-1.2GMHz; The frequency of utilization of each branch transition device 4 can be set; Effective like this number that has expanded the intelligent electric meter that concentrated collector 3 connected need not expand extra interface, increases connect up between interface and the interface loaded down with trivial details.
In embodiments of the present invention; The layout that is connected of main converter 6 and branch transition device 4 comprises that Y-connection layout, chain connect layout, tree-like connection is arranged and annular is connected a kind of or two or more at least combination in the layout; It is the set-up mode of the cable tv coax net that provides of prior art; Can have multiplely, repeat no more at this, but not in order to restriction the present invention.
The ammeter power information transmission system that the embodiment of the invention provides comprises some intelligent electric meters, passes through some branch transition devices, cable tv coax, main converter and concentrated collector that twisted-pair feeder is connected with intelligent electric meter; Wherein, The branch transition device converts intelligent electric meter into meet the cable tv coax transmission radiofrequency signal with the ammeter power information of RS-485 communication interface mode transfer; The ammeter power information is transmitted in the cable tv coax net with the pattern of radiofrequency signal; Arrive main converter, main converter converts radiofrequency signal into RS-485 communication interface mode transfer ammeter power information once more, is transferred to the electricity meter-reading data center of far-end through concentrating collector; Accomplish the transmission of ammeter power information; Thereby overcome the existing defective of intelligent grid that prior art provides,, do not needed extra wiring through cable tv coax net transmission ammeter power information; And cable tv coax has low interference, low-loss, height is anti-interference and the characteristic of impedance stabilization, and help reliability of data transmission and confidentiality.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. ammeter power information transmission system is characterized in that said system comprises:
Some intelligent electric meters;
With some branch transition devices that said some intelligent electric meters are connected through twisted-pair feeder, said branch transition device converts said intelligent electric meter into meet the cable tv coax transmission radiofrequency signal with the ammeter power information of RS-485 communication interface mode transfer;
Cable tv coax;
Through the main converter that said cable tv coax is connected with said some branch transition devices, said main converter converts the said radiofrequency signal that meets the cable tv coax transmission into RS-485 communication interface mode transfer ammeter power information;
The concentrated collector that is connected with said main converter; Said concentrated collector obtains the ammeter power information with RS-485 communication interface mode transfer after the said main converter conversion, and the ammeter power information after the said conversion is transferred to the electricity meter-reading data center of far-end.
2. ammeter power information transmission system according to claim 1 is characterized in that, said each branch transition device is connected with several intelligent electric meters through twisted-pair feeder.
3. ammeter power information transmission system according to claim 1 is characterized in that said main converter is provided with several wireless modules, and the frequency of utilization scope of said wireless module is 868MHz to 1.2GHz or 0.01MHz-70MHz.
4. ammeter power information transmission system according to claim 3 is characterized in that, the corresponding setting with said wireless module of said branch transition device, the corresponding frequency of utilization of said branch transition device configuration.
5. ammeter power information transmission system according to claim 1; It is characterized in that the layout that is connected of said main converter and branch transition device comprises that Y-connection layout, chain connect layout, tree-like connection is arranged and annular is connected a kind of or two or more at least combination in the layout.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102537360A CN102800187A (en) | 2012-07-20 | 2012-07-20 | Electricity information transmission system for electricity meters |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102537360A CN102800187A (en) | 2012-07-20 | 2012-07-20 | Electricity information transmission system for electricity meters |
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| CN102800187A true CN102800187A (en) | 2012-11-28 |
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| CN2012102537360A Pending CN102800187A (en) | 2012-07-20 | 2012-07-20 | Electricity information transmission system for electricity meters |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103647730A (en) * | 2013-12-31 | 2014-03-19 | 李建新 | Electricity consumption information communication system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201707782U (en) * | 2010-06-18 | 2011-01-12 | 滨州职业学院 | Intelligent meter reading system based on GPRS (General Packet Radio Service) |
| CN102315861A (en) * | 2011-09-01 | 2012-01-11 | 武汉长光科技有限公司 | Programmable communication unit based on coaxial cable access |
| CN102594411A (en) * | 2012-04-01 | 2012-07-18 | 潍坊开发区蓝岭科学研究中心 | Transmission device for power line carrier communication |
| CN202662156U (en) * | 2012-07-20 | 2013-01-09 | 李建新 | Ammeter power utilization information transmission system |
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2012
- 2012-07-20 CN CN2012102537360A patent/CN102800187A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201707782U (en) * | 2010-06-18 | 2011-01-12 | 滨州职业学院 | Intelligent meter reading system based on GPRS (General Packet Radio Service) |
| CN102315861A (en) * | 2011-09-01 | 2012-01-11 | 武汉长光科技有限公司 | Programmable communication unit based on coaxial cable access |
| CN102594411A (en) * | 2012-04-01 | 2012-07-18 | 潍坊开发区蓝岭科学研究中心 | Transmission device for power line carrier communication |
| CN202662156U (en) * | 2012-07-20 | 2013-01-09 | 李建新 | Ammeter power utilization information transmission system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103647730A (en) * | 2013-12-31 | 2014-03-19 | 李建新 | Electricity consumption information communication system |
| CN103647730B (en) * | 2013-12-31 | 2016-06-22 | 李建新 | A kind of power information communication system |
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Application publication date: 20121128 |