CN102855740A - Electric power data transmission system - Google Patents
Electric power data transmission system Download PDFInfo
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- CN102855740A CN102855740A CN 201210283973 CN201210283973A CN102855740A CN 102855740 A CN102855740 A CN 102855740A CN 201210283973 CN201210283973 CN 201210283973 CN 201210283973 A CN201210283973 A CN 201210283973A CN 102855740 A CN102855740 A CN 102855740A
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Abstract
The invention is suitable for the technical field of electric power data communication, and provides an electric power data transmission system. The power data transmission system comprises a plurality of sub-convertors connected with an intelligent ammeter through twisted pairs, a cable television transmission net, a main convertor and a collector, wherein the sub-convertors are used for converting electric power data of the intelligent ammeter into a radio-frequency signal which meets cable television coaxial cable transmission; the power data adopts a radio-frequency signal mode to transmit in the cable television transmission net so as to reach the main convertor; and the main convertor converts the radio-frequency signal again into the electric power data transmitted in an RS-485 communication interface mode so as to transmit the electric power data to a far-end electric power meter copying centre through the collector, and the transmission of the electric power data is finished, and the electric power data transmission system overcomes the existing defect of the intelligent ammeter communication in the intelligent electric network provided by the prior art; and the cable television transmission net is used for transmitting the transmission power data, the additional wiring is not needed, and the cable television coaxial cable has the characteristics of low interference, low loss, high anti-jamming property and stable impedance.
Description
Technical field
The present invention relates to the electric power data communication technical field, relate in particular to a kind of electric power data transfer system.
Background technology
In recent years, intelligent electric meter uses in intelligent grid widely, intelligent electric meter mainly uses RS-485 serial ports transferring electric power data, and each ammeter is connected with collector by twisted-pair feeder, then respectively is transferred to the electricity meter-reading center by circuits such as GPRS or Ethernet, optical fiber; But there is defective in the transmission mode of this electric power data, and for example the twisted-pair feeder difficulty of construction is large, and is easily constructed and artificial destruction.
Invention
Content
The object of the present invention is to provide a kind of electric power data transfer system, be intended to solve the electric power data that prior art provides large by the Double-strand transmission difficulty of construction, and easily constructed and the problem of artificial destruction.
The present invention is achieved in that a kind of electric power data transfer system, and described system comprises:
Pass through twisted pair line connection with some intelligent electric meters, and the electric power data of described intelligent electric meter is converted to some minutes converters of the radiofrequency signal that meets the cable TV transmission network transmission;
Cable TV transmission network;
Be connected with described some minutes converters by described cable TV transmission network, and the described radiofrequency signal that meets cable tv coax transmission is converted to main converter with the electric power data of RS-485 communication interface mode transfer;
Be connected with described main converter, obtain the electric power data with RS-485 communication interface mode transfer after described main converter is changed, and the electric power data after the described conversion is transferred to the collector at the electricity meter-reading center of far-end;
Described each minute converter has several intelligent electric meters by twisted pair line connection.
The invention provides electric power data transfer system and comprise some minutes converters that are connected with intelligent electric meter by twisted-pair feeder, cable TV transmission network, main converter and collector, wherein, divide converter the intelligent electric meter electric power data to be converted to the radiofrequency signal that meets the cable tv coax transmission, electric power data transmits in cable TV transmission network with the pattern of radiofrequency signal, arrive main converter, main converter is converted to electric power data with RS-485 communication interface mode transfer again with radiofrequency signal, be transferred to the electricity meter-reading center of far-end by collector, finish the transmission of electric power data, thereby overcome in the intelligent grid that prior art provides communicate by letter existing defective of intelligent electric meter, by cable TV transmission network transferring electric power data, do not need extra wiring, and cable tv coax have low the interference, low-loss, the characteristic of high anti-interference and impedance stabilization.
Description of drawings
Fig. 1 is the framework schematic diagram of electric power data transfer system provided by the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
Fig. 1 shows the framework schematic diagram of electric power data transfer system provided by the invention, for convenience of explanation, has only provided part related to the present invention among the figure.
Electric power data transfer system comprises:
Pass through twisted pair line connection with some intelligent electric meters, and the electric power data of described intelligent electric meter is converted to some minutes converters of the radiofrequency signal that meets the cable TV transmission network transmission;
Cable TV transmission network;
Be connected with described some minutes converters by described cable TV transmission network, and the described radiofrequency signal that meets cable tv coax transmission is converted to main converter with the electric power data of RS-485 communication interface mode transfer;
Be connected with described main converter, obtain the electric power data with RS-485 communication interface mode transfer after described main converter is changed, and the electric power data after the described conversion is transferred to the collector at the electricity meter-reading center of far-end;
Described each minute converter has several intelligent electric meters by twisted pair line connection.
Wherein, above-mentioned cable TV transmission network is existing in order to transmit the concentric cable of cable television digital signal, and it has been ripe communication wires network, i.e. cable TV transmission network;
Relative, twisted-pair feeder is all adopted in wiring of the prior art, realizes that intelligent electric meter is connected connection with collector, causes existing difficult wiring, is subjected to the problem such as external interference;
And electric power data transfer system provided by the invention adopts existing cable TV transmission network to carry out the transmission of electric power data, efficiently solves the problem of above-mentioned technology, and has simplified the inside structure of transmission system, has reduced cost, and concrete is as follows:
For example do not need extra wiring, and be difficult for by artificial destruction; The transmission frequency of electric power data adopts the high-frequency signal transmission, and strong anti-interference performance has been avoided the impact of extraneous factors such as being struck by lightning; Simultaneously, improve reliability and the confidentiality of the transmission of data.
In the present invention, above-mentioned cable TV transmission network substitutes traditional RS-485 communication interface pattern Double-strand transmission electric power data, transmission range 500m～800m.
In the present invention, be provided with several wireless modules at main converter end, the corresponding some frequencies of utilization of these several wireless modules, it is the respective branches converter successively, be the corresponding branch transition device of frequency of utilization on each road, effective like this crowded of signal transmission of avoiding;
Simultaneously, in the present invention, each branch transition device connects some intelligent electric meters, and it connects at most 32 intelligent electric meters.
The invention provides electric power data transfer system and comprise some minutes converters that are connected with intelligent electric meter by twisted-pair feeder, cable TV transmission network, main converter and collector, wherein, divide converter the intelligent electric meter electric power data to be converted to the radiofrequency signal that meets the cable tv coax transmission, electric power data transmits in cable TV transmission network with the pattern of radiofrequency signal, arrive main converter, main converter is converted to electric power data with RS-485 communication interface mode transfer again with radiofrequency signal, be transferred to the electricity meter-reading center of far-end by collector, finish the transmission of electric power data, thereby overcome in the intelligent grid that prior art provides communicate by letter existing defective of intelligent electric meter, by cable TV transmission network transferring electric power data, do not need extra wiring, and cable tv coax have low the interference, low-loss, the characteristic of high anti-interference and impedance stabilization.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (1)
1. an electric power data transfer system is characterized in that, described system comprises:
Pass through twisted pair line connection with some intelligent electric meters, and the electric power data of described intelligent electric meter is converted to some minutes converters of the radiofrequency signal that meets the cable TV transmission network transmission;
Cable TV transmission network;
Be connected with described some minutes converters by described cable TV transmission network, and the described radiofrequency signal that meets cable tv coax transmission is converted to main converter with the electric power data of RS-485 communication interface mode transfer;
Be connected with described main converter, obtain the electric power data with RS-485 communication interface mode transfer after described main converter is changed, and the electric power data after the described conversion is transferred to the collector at the electricity meter-reading center of far-end;
Described each minute converter has several intelligent electric meters by twisted pair line connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210283973 CN102855740A (en) | 2012-08-10 | 2012-08-10 | Electric power data transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210283973 CN102855740A (en) | 2012-08-10 | 2012-08-10 | Electric power data transmission system |
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| Publication Number | Publication Date |
|---|---|
| CN102855740A true CN102855740A (en) | 2013-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201210283973 Pending CN102855740A (en) | 2012-08-10 | 2012-08-10 | Electric power data transmission system |
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| CN (1) | CN102855740A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104504876A (en) * | 2014-11-18 | 2015-04-08 | 国网上海市电力公司 | Split-type power utility information collector |
-
2012
- 2012-08-10 CN CN 201210283973 patent/CN102855740A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104504876A (en) * | 2014-11-18 | 2015-04-08 | 国网上海市电力公司 | Split-type power utility information collector |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130102 |