CN201550111U - Network data converting device based on power line carrier communication - Google Patents
Network data converting device based on power line carrier communication Download PDFInfo
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- CN201550111U CN201550111U CN2009201826371U CN200920182637U CN201550111U CN 201550111 U CN201550111 U CN 201550111U CN 2009201826371 U CN2009201826371 U CN 2009201826371U CN 200920182637 U CN200920182637 U CN 200920182637U CN 201550111 U CN201550111 U CN 201550111U
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Abstract
The utility model relates to a carrier communication device, in particular to a network data converting device based on power line carrier communication, which is characterized by comprising a high-speed communication module, a low-speed communication module, a control converting circuit, a first signal transmission interface and a second signal transmission interface. One end of the first signal transmission interface is connected with a communication carrier while the other end is connected with a communication interface of the control converting circuit through the high-speed communication module, another communication interface of the control converting circuit is connected with the low-speed communication module, and the low-speed communication module is connected with a second signal transmission interface. The network data converting device has the advantages that the network data converting device leads a broadband communication network and a narrowband communication network to be in signal transmission connection and to be communicated, increases communication success ratio and communication reliability, leads the two communication networks to be compatible, realizes integration compatible operation between the broadband communication network and the narrowband communication network, simplifies management procedure, reduces management cost, decreases building cost, and plays an important role in development in the field.
Description
Technical field
The utility model relates to a kind of carrier communication apparatus, particularly a kind of network data conversion device based on power line carrier communication.
Background technology
In the prior art, mainly contain two kinds based on the method for power line carrier communication: a kind of is to adopt low speed power line communication framework, and frequency is at 7KHZ-500KHZ, it is exactly the narrow band communication mode, adopt this method traffic rate very low,, generally have only 1200bps usually less than 9600bps, because the signal to noise ratio of power circuit communication is difficult to stablize under the electric power power utilization environment that changes at any time, can not well be guaranteed, so the successful communication rate is low poor reliability, but propagation distance is far away, can reach km.
Another kind of method based on power line carrier, PLC is to adopt the broadband connections mode, utilize orthogonal frequency division technique (OFDM), frequency is at 2MHZ-30MHZ, and its traffic rate can reach more than the 200Mbps greater than 10Mbps, the communication success rate is high, but because the frequency height of high-speed communication, its decay in the frequency range of communication is also big, can only guarantee the reliable communication in 300 meters distances usually, and high-speed communicating network is to its corresponding communication product requirement height, so cost is also high.
Above-mentioned two kinds of methods are incompatible in technology at present, be independent separately at present, every field in the face of power line communication, just select to install high-speed communication system according to the communication technology direction of enforcement side, or the low-speed communication system is installed in selection, but but be very big inconvenience for administrative department, need to install two cover management systems, and can not be compatible; On the other hand, high-speed communicating network and low-speed communication network respectively have its advantage, but all have certain deficiency, and high-speed communicating network is difficult to guarantee the reliable communication of long distance, but and the long haul communication of low-speed communication network can't guarantee its communication success rate.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art part, and provide a kind of can compatible high and low communication network, and the high network data conversion device of communication success rate based on power line carrier, PLC.
Communicator described in the utility model is realized by following approach:
Network data conversion device based on power line carrier communication, its structural feature is: include high-speed communication module, low-speed communication module, the control transformation circuit, first signal transmission interface and secondary signal coffret, first signal transmission interface, one end connects communications carrier, the other end is connected with a communication interface of control transformation circuit by the high-speed communication module, another communication interface of control transformation circuit is connected with the low-speed communication module, and the low-speed communication module is connected with the secondary signal coffret.
High-speed communication module realization information data and high speed carrier signal are changed mutually.Low-speed communication module realization information data and low speed carrier signal are changed mutually.The control transformation circuit is according to the mode of operation of commands for controlling high speed carrier signal and low speed carrier signal: when carrying out narrow band signal when converting broadband signal to, earlier " transmission information " in the narrow band signal is proposed, carry out " packing " by the broadband communications agreement again and be input to the high-speed communication module, finish narrow band signal conversion broadband signal and output.When carrying out broadband signal when converting narrow band signal to, earlier " transmission information " in the broadband signal is proposed, carry out " packing " by the arrowband communications protocol again and deposit " memory " back in being input to the low-speed communication module, finish broadband signal conversion narrow band signal and output by instruction.
First signal transmission interface receives from the high speed carrier signal on the communications carrier, send the high-speed communication module then to, after the high-speed communication resume module, send data-signal to the control transformation circuit, this data-signal of control transformation circuit conversion makes it to become the low speed carrier signal, then it is sent to the low-speed communication module and do further processing, the signal after will changing by the secondary signal coffret at last transfers out, and finishes the process that is converted to the low speed carrier signal by high speed carrier signal.More than signal flow process in DTU (Data Transfer unit) be reversible, that is to say, when the low speed carrier signal after the secondary signal coffret enters conversion equipment, via the low-speed communication resume module, again by the control transformation circuit conversion, again by after the high-speed communication resume module, will transfer out by first signal transmission interface at last by the high speed carrier signal that the low speed carrier signal converts to.
Like this, adopt network data conversion device described in the utility model can change and transmitting high speed and low speed carrier signal, compatible high speed, low-speed communication network, on the basis of this programme, high-speed communicating network and low-speed communication network are optimized proportioning, the deficiency of two kinds of communication modes on the transmission carrier signal be can overcome, communication success rate and communication reliability improved.
Broadband connections technology and narrow band communication technology adhere to two different technologies systems separately, because inequality on its technical characteristic, cause its technology that adopts and relevant various products all different fully,, and not have to consider and the other side's integration compatibility so both sides are being developed in the field separately.In fact, no matter be broadband or arrowband, its essence all is that data are transmitted with carrier system, but those skilled in the art is but because of its technical system relation or because application study not deep enough, perhaps be absorbed in the broadband, perhaps be absorbed in the arrowband technology, never consider two kinds of technology are integrated compatibility, finish the common of both sides and melt altogether, formed a kind of technology " prejudice " in the course of time, think that the two need not compatibility, and technical staff of the present utility model has overcome this technology " prejudice " just, to using going deep into of research, seeks common ground while reserving difference, two kinds of technology are integrated compatible, both can learn from other's strong points to offset one's weaknesses, further develop the communication technology, improve the communication success rate, the compatibility utilization can also be carried out in broadband and arrowband, enlarge the utilization scope, the streamlining management program reduces management cost, reducing the construction costs, in the development of this area, be significant.
The utility model can also further be specially:
First signal transmission interface and secondary signal coffret are installed in the same interface circuit.
The high-speed communication module can adopt the chip of following model: INT6300, INT6400, DS7700, DS8101, DS9101;
The low-speed communication module can adopt the chip of following model: IT700, PLC38-I, PLC38-II, PLC38-III;
The control transformation circuit can adopt the process chip of following model: ARM7, ARM9; Memory in the control transformation circuit can adopt following model: K9F1208 in addition.
For further specifying network data conversion device described in the utility model, this specification is described a kind of a kind of network transmission system based on this device, and is specific as follows:
Based on the network data transmission system of power line carrier communication, its main points are:
A kind of aforesaid network data conversion device based on power line carrier communication is provided,
A kind of collector that is connected with data source is provided,
A kind of narrow-band communications network and a kind of broadband communication network are provided;
When data source was in the broadband communication network, the transfer of data carrier of broadband communication network was connected to first signal transmission interface of network data conversion device by collector;
High speed carrier signal need be when broadband communication network be transferred to narrow-band communications network, the data source high speed carrier signal of broadband communication network will be via collector, be transferred in the network data conversion device by first signal transmission interface then, under the conversion of network data conversion device, become the low speed carrier signal, be transferred in the narrow-band communications network by the secondary signal coffret at last; When signal returns, the low speed carrier signal need be transferred to broadband communication network from narrow-band communications network, the low speed carrier signal of narrow-band communications network will be transferred in the network data conversion device by the secondary signal coffret, under the conversion of network data conversion device, become high speed carrier signal, transfer out by first signal transmission interface then, be transferred in the broadband communication network through collector.
When data source was in the narrow-band communications network, the transfer of data carrier of narrow-band communications network was connected to the secondary signal coffret of network data conversion device by collector;
The low speed carrier signal need be when narrow-band communications network be transferred to broadband communication network, the low speed carrier signal of narrow-band communications network will be transferred in the network data conversion device by the secondary signal coffret via collector, under the conversion of network data conversion device, become high speed carrier signal, be transferred in the broadband communication network by first signal transmission interface then; When signal returns, high speed carrier signal need be transferred to narrow-band communications network from broadband communication network, the data source high speed carrier signal of broadband communication network will be transferred in the network data conversion device by first signal transmission interface, under the conversion of network data conversion device, become the low speed carrier signal, transfer out by the secondary signal coffret at last, be transferred in the narrow-band communications network through collector.
This is a kind of network architecture of integrating broadband communication network and narrow-band communications network, and system architecture is based on power line carrier communication.Therefore need not to lay in addition grid line, and directly utilize the existing power transmission line.This network can be realized the mutual conversion between high speed carrier signal and the low speed carrier signal, thereby realize between wideband power carrier communication network and the electric power narrowband carrier communication network mutual conversion with communicate by letter, for broadband communication network and narrow-band communications network provide a good system networking technology and device.
Above-mentioned network data transmission system can also further be specially:
Also comprise a kind of concentrator, it is serially connected between communication network main website and the network data conversion device.
The communication network main website is a kind of host node of communication network (being broadband communication network or narrow-band communications network), the system that the data of Network Transmission, agreement, equipment etc. are managed.In communication network, concentrator is the intermediate equipment of carrying out network management as to all terminals of a certain part, can strengthen the signal transmission and the various management of network service, is the auxiliary and branch to the main website management.
Above-mentioned network data conversion device can exist as autonomous device, also can be installed in the collector, saves cost, makes signal processing more compact simultaneously, and is simple.
Network data conversion device can also be installed in the concentrator, like this, the concentrator data-handling capacity is increased, but for now, the construction cost of system also can correspondingly improve.
In sum, the utility model provides a kind of network data conversion device based on power line carrier communication, the signal transmission of broadband communication network and narrow-band communications network is coupled together, make its intercommunication, overcome the weak point of original high-speed communication and low-speed communication, improved the reliability of communication success rate and communication; Compatible two kinds of communication networks have solved the transmission problem between two kinds of communication networks, have realized the compatible utilization of integration between broadband communication network and the narrow-band communications network, the streamlining management program, reduce management cost, reducing the construction costs, in the development of this area, be significant.
Description of drawings
Figure 1 shows that the circuit frame schematic diagram of network data conversion device described in the utility model;
Figure 2 shows that the network configuration principle schematic of most preferred embodiment described in the utility model;
Embodiment
Most preferred embodiment
With reference to accompanying drawing 1, network data conversion device based on power line carrier communication, include high-speed communication module, low-speed communication module, the control transformation circuit, first signal transmission interface and secondary signal coffret, first signal transmission interface, one end connects communications carrier, the other end is electrically connected with a communication interface of control transformation circuit by the high-speed communication module, another communication interface of control transformation circuit is electrically connected with the low-speed communication module, and the low-speed communication module is electrically connected with the secondary signal coffret.
In the said equipment, the high-speed communication module is a broadband P LC high-speed communication module, and can adopt model is the communication chip of DS7700.The low-speed communication module is a low speed plc communication module, and can adopt model is the communication chip of PLC38-II, and the control transformation circuit then is a kind of ARMCPU control circuit.
First signal transmission interface receives from the high speed carrier signal on the communications carrier, send the high-speed communication module then to, after the high-speed communication resume module, send data-signal to the control transformation circuit, this data-signal of control transformation circuit conversion makes it to become the low speed carrier signal, then it is sent to the low-speed communication module and do further processing, the signal after will changing by the secondary signal coffret at last transfers out, and finishes the process that is converted to the low speed carrier signal by high speed carrier signal.During the signal passback, that is to say, when the low speed carrier signal after the secondary signal coffret enters network data conversion device, via the low-speed communication resume module, again by the control transformation circuit conversion, again by after the high-speed communication resume module, will transfer out by first signal transmission interface at last by the high speed carrier signal that the low speed carrier signal converts to.
With reference to accompanying drawing 2, it is application background that present embodiment provides the kilowatt meter reading-out system with electric power system, sets forth a kind of network data transmission system based on above-mentioned network data conversion device.The following situation of introducing existing power meter reading system earlier:
At present, installation to the power supply ammeter is distinguished according to mounting object and environment, dual mode is arranged, a kind of is centralized, a kind of is distributing, centralized ammeter ' s reading meter system goes for broadband communication network, only need install the high-speed communication module additional gets final product, distributed ammeter ' s reading meter system is applicable to narrow-band communications network, above-mentioned two kinds of communication modes all can be realized checking meter, and two systems are independent, incompatible separately, management of power supply management department and construction cost are improved greatly, and be difficult to realize unified management.At above problem, can to improve the communication success rate, realize the integration compatibility of two kinds of different communication networks with network data conversion device described in the utility model in order to realize the transfer of data of narrow-band communications network is converted to the transfer of data of broadband communication network.Specific as follows:
A kind of foregoing network data conversion device based on power line carrier communication is provided,
A kind of narrow-band communications network is provided, is the network of each ammeter connection and transmission; A kind of broadband communication network provides the communication network of data management for power supply department;
A kind of collector that includes above-mentioned network data conversion device is provided, and promptly network data conversion device is installed in the collector, and collector is connected in the narrow-band communications network with various ammeter datas source;
A kind of concentrator is provided, and it is connected with broadband communication network, is a kind of network management intermediate equipment of broadband connections;
The transfer of data carrier of narrow-band communications network is connected to the secondary signal coffret of network data conversion device by collector, and the transfer of data carrier of broadband communication network is connected to first signal transmission interface of network data conversion device by concentrator;
The various data of gathering from ammeter become the low speed carrier signal of narrow-band communications network, concentration of transmissions is in collector, be transferred in the network data conversion device by the secondary signal coffret then, under the conversion of network data conversion device, become high speed carrier signal, and transfer out by first signal transmission interface, after concentrator be transferred in the broadband communication network, with data to power supply management department.
When signal returns, promptly when high speed carrier signal when broadband communication network is transferred to narrow-band communications network, the high speed carrier signal of broadband communication network is transferred on the power line through concentrator, be transferred in the network data conversion device by first signal transmission interface then, under the conversion of network data conversion device, become the low speed carrier signal, can be divided into two classes, one class transfers out by the secondary signal coffret, on collector is transferred to low speed carrier power meter in the narrow-band communications network, another kind ofly then can give ammeter by 485 bus signal transmission with 485 functions.485 interface circuits are seen accompanying drawing 1 with being connected of control transformation circuit.
In the foregoing description, network data conversion device is installed in the concentrator, but equipment cost will improve.
It is same as the prior art that present embodiment is not stated part.
Claims (5)
1. based on the network data conversion device of power line carrier communication, it is characterized in that: include high-speed communication module, low-speed communication module, control transformation circuit, first signal transmission interface and secondary signal coffret, first signal transmission interface, one end connects communications carrier, the other end is connected with a communication interface of control transformation circuit by the high-speed communication module, another communication interface of control transformation circuit is connected with the low-speed communication module, and the low-speed communication module is connected with the secondary signal coffret.
2. the network data conversion device based on power line carrier communication according to claim 1 is characterized in that, first signal transmission interface and secondary signal coffret are installed in the same interface circuit.
3. the network data conversion device based on power line carrier communication according to claim 1 is characterized in that, the high-speed communication module adopts one of chip of following model: INT6300, INT6400, DS7700, DS8101, DS9101.
4. the network data conversion device based on power line carrier communication according to claim 1 is characterized in that, the low-speed communication module adopts one of chip of following model: IT700, PLC38-I, PLC38-II, PLC38-III.
5. the network data conversion device based on power line carrier communication according to claim 1 is characterized in that, the control transformation circuit adopts one of process chip of following model: ARM7, ARM9; Memory in the control transformation circuit adopts following model: K9F1208.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009201826371U CN201550111U (en) | 2009-08-12 | 2009-08-12 | Network data converting device based on power line carrier communication |
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| CN2009201826371U CN201550111U (en) | 2009-08-12 | 2009-08-12 | Network data converting device based on power line carrier communication |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101931434A (en) * | 2009-08-12 | 2010-12-29 | 刘骏 | Network data conversion device based on power line carrier communication and conversion method thereof |
| CN102347786A (en) * | 2011-07-20 | 2012-02-08 | 湖北省电力公司电力试验研究院 | Power line narrowband carrier field test device applied to low voltage centralized meter reading system |
| CN102377455A (en) * | 2010-08-17 | 2012-03-14 | 易皆能科技 | Boiler and central cooling device provided with power line communication for energy management |
| CN103457636A (en) * | 2013-08-09 | 2013-12-18 | 国家电网公司 | Method and system for cross-frequency band power line carrier communication based on frequency recognition technology |
| CN103490796A (en) * | 2013-09-13 | 2014-01-01 | 北京师范大学 | Power distribution line broadband power carrier communication system and method |
| CN103927862A (en) * | 2014-04-30 | 2014-07-16 | 威胜集团有限公司 | G3 data forwarder and meter recording method for same |
| CN110838654A (en) * | 2019-11-20 | 2020-02-25 | 石门依云电子商务有限公司 | Intelligent socket based on power line carrier |
| CN113411101A (en) * | 2021-06-17 | 2021-09-17 | 广州极飞科技股份有限公司 | Communication speed control method, device, main control equipment and readable storage medium |
-
2009
- 2009-08-12 CN CN2009201826371U patent/CN201550111U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101931434A (en) * | 2009-08-12 | 2010-12-29 | 刘骏 | Network data conversion device based on power line carrier communication and conversion method thereof |
| CN101931434B (en) * | 2009-08-12 | 2014-06-04 | 刘骏 | Network data conversion device based on power line carrier communication and conversion method thereof |
| CN103501189B (en) * | 2009-08-12 | 2016-02-17 | 刘骏 | Based on the network data conversion device of power line carrier communication |
| CN102377455A (en) * | 2010-08-17 | 2012-03-14 | 易皆能科技 | Boiler and central cooling device provided with power line communication for energy management |
| CN102347786A (en) * | 2011-07-20 | 2012-02-08 | 湖北省电力公司电力试验研究院 | Power line narrowband carrier field test device applied to low voltage centralized meter reading system |
| CN102347786B (en) * | 2011-07-20 | 2014-01-01 | 湖北省电力公司电力科学研究院 | Power line narrowband carrier field test device applied to low voltage centralized meter reading system |
| CN103457636A (en) * | 2013-08-09 | 2013-12-18 | 国家电网公司 | Method and system for cross-frequency band power line carrier communication based on frequency recognition technology |
| CN103457636B (en) * | 2013-08-09 | 2015-05-27 | 国家电网公司 | Method and system for cross-frequency band power line carrier communication based on frequency recognition technology |
| CN103490796A (en) * | 2013-09-13 | 2014-01-01 | 北京师范大学 | Power distribution line broadband power carrier communication system and method |
| CN103927862A (en) * | 2014-04-30 | 2014-07-16 | 威胜集团有限公司 | G3 data forwarder and meter recording method for same |
| CN110838654A (en) * | 2019-11-20 | 2020-02-25 | 石门依云电子商务有限公司 | Intelligent socket based on power line carrier |
| CN113411101A (en) * | 2021-06-17 | 2021-09-17 | 广州极飞科技股份有限公司 | Communication speed control method, device, main control equipment and readable storage medium |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20160812 |