CN108337017A - The power line carrier communication Test Networking of topological structure flexible transformation - Google Patents
The power line carrier communication Test Networking of topological structure flexible transformation Download PDFInfo
- Publication number
- CN108337017A CN108337017A CN201711475990.4A CN201711475990A CN108337017A CN 108337017 A CN108337017 A CN 108337017A CN 201711475990 A CN201711475990 A CN 201711475990A CN 108337017 A CN108337017 A CN 108337017A
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- topological structure
- power line
- line carrier
- carrier communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/46—Monitoring; Testing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/0082—Monitoring; Testing using service channels; using auxiliary channels
- H04B17/0087—Monitoring; Testing using service channels; using auxiliary channels using auxiliary channels or channel simulators
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/391—Modelling the propagation channel
- H04B17/3912—Simulation models, e.g. distribution of spectral power density or received signal strength indicator [RSSI] for a given geographic region
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/56—Circuits for coupling, blocking, or by-passing of signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/12—Discovery or management of network topologies
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2203/00—Indexing scheme relating to line transmission systems
- H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
- H04B2203/5462—Systems for power line communications
- H04B2203/5483—Systems for power line communications using coupling circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2203/00—Indexing scheme relating to line transmission systems
- H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
- H04B2203/5462—Systems for power line communications
- H04B2203/5495—Systems for power line communications having measurements and testing channel
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
The invention discloses a kind of power line carrier communication Test Networkings of topological structure flexible transformation, are used to detect the communication function of carrier telecommunication.The power line carrier communication Test Networking includes industrial personal computer unit, interchanger and serial server unit, signal noise injection unit, programmable impedance converter unit and Test Networking topological structure unit.Industrial personal computer unit carries out parameter configuration and statistical analysis test data to each program-controlled equipment.Interchanger establishes the connection of each program-controlled equipment and industrial personal computer in the Test Networking with serial server unit.Signal noise injection unit simulates the noise jamming in practical application scene and carries out spectrum monitoring to it.Programmable impedance converter unit simulates the impedance operator of practical application scene.The topological structure of Test Networking topological structure unit simulation practical application scene.Topological structure flexible transformation may be implemented in the power line carrier communication Test Networking and communication channel is more stablized, and test result is closer to reality.
Description
Technical field
The present invention relates to the communications field, more particularly to a kind of power line carrier communication test group of topological structure flexible transformation
Net.
Background technology
Broadband power line carrier communication technology is a kind of completely new communication technology based on power line transmission, due to its transmission
Medium is power line, is highly suitable to be applied for low pressure power information acquisition field.Therefore, this technology has obtained national grid
Pay much attention to, and combine strong mechanism of enterprises and institutions of each family, the communication for having formulated national grid broadband power line carrier is discussed
Agreement, each producer are proposed the product based on the bandwidth carrier communication technology successively.
Since power line is different from other dedicated communication lines, the characteristic of channel is very undesirable, is one highly unstable
Transmission channel, this is embodied in noise significantly and signal decaying is serious.On any two different power lines, power line
The transmission bandwidth and distance of broadband carrier signal are all different, can not establish the mathematical model of a rule.Therefore each factory
Test of the family to such communication equipment is stopped substantially in the communication function test of simple networking.Usually by a host node with it is more
A child node is connected in power line is communicated simultaneously, by changing the distance between child node and host node, realizes node
Routing classification.And by by the power line in various electrical equipment access communications, to simulate channel circumstance when practical communication.
Existing power line carrier communication Test Networking discovery has the following disadvantages：
1, networking mode is too simple, can not change a group net topology.
2, communication channel is unstable, is easy that signal attenuation change occurs because of external interference, leads to communication disruption or node road
By the change of level.
3, it is difficult to be artificially injected noise signal, although we can by the various noise signals of vector signal source structure,
Since broadband power line carrier uses power line medium to transmit signal, the noise signal of construction can not be injected.
Being disclosed in the information of the background technology part, it is only intended to increase understanding of the overall background of the invention, without answering
It has been the prior art well known to persons skilled in the art when being considered as recognizing or imply that the information is constituted in any form.
Invention content
The purpose of the present invention is to provide a kind of power line carrier communication Test Networkings of topological structure flexible transformation, are used for
Detect the communication function of carrier telecommunication.
To achieve the above object, the present invention provides a kind of power line carrier communication test groups of topological structure flexible transformation
Net is used to detect the communication function of carrier telecommunication.The power line carrier communication Test Networking includes industrial personal computer
Unit, interchanger and serial server unit, signal noise injection unit, programmable impedance converter unit and Test Networking topology
Structural unit.Industrial personal computer unit carries out parameter configuration and statistical analysis test data to each program-controlled equipment.Interchanger takes with serial ports
Business device unit is electrically connected with the industrial personal computer unit, establishes the connection of each program-controlled equipment and industrial personal computer in the Test Networking,
Form a set of control communication link.Signal noise injection unit is electrically connected with the interchanger and serial server unit, will
Noise signal injects communication link, to simulate the noise jamming in practical application scene and carry out spectrum monitoring to it.It is program-controlled
Impedance converter unit is electrically connected with the interchanger and serial server unit and the signal noise injection unit, institute
It states industrial personal computer unit and parameter configuration is carried out to simulate the impedance operator of practical application scene to the programmable impedance converter unit.
Test Networking topological structure unit and the interchanger and serial server unit and the programmable impedance converter unit are electric
Property connection, the industrial personal computer unit to the Test Networking topological structure unit carry out parameter configuration to simulate practical application field
The topological structure of scape.
Preferably, in above-mentioned technical proposal, the signal noise injection unit includes signal generator and frequency spectrograph.
Preferably, in above-mentioned technical proposal, the Test Networking topological structure unit includes multiple shielded boxes and multiple penetrates
Frequency signal transmission unit.It is placed in the shielded box and is tested carrier telecommunication and signal coupler, it is outer for shielding
Sector signal interferes.The radio signal transmission unit is electrically connected with the signal coupler, is used for radio signal transmission.It is excellent
Selection of land, in above-mentioned technical proposal, the radio signal transmission unit includes programmable attenuator, the tested power line carrier communication
Equipment couples a signal to the radio signal transmission unit by the signal coupler, and the industrial personal computer unit is to the journey
It controls attenuator and carries out parameter configuration, to control radio signal transmission intensity.
Preferably, multigroup using single shielded box and single radio frequency signal transmission unit as one group in above-mentioned technical proposal
Networking is carried out, is communicated between control group and group by controlling the signal transmission strength of each radio signal transmission unit
State, to realize topological structure flexible transformation.
Preferably, in above-mentioned technical proposal, the described group of communications status between group, which is divided into, is connected and disconnected from two kinds.
Preferably, in above-mentioned technical proposal, the topological structure can be transformed to stelliform connection topology configuration, tree topology knot
Structure, bus type topological structure and ring topology.
Compared with prior art, the present invention has the advantages that：
1, group network topological structure being capable of flexible transformation.
2, it is interfered with shielded box shielded signal, communication channel is more stablized.
3, actual scene noise jamming and impedance operator can be simulated, makes test result closer to reality.
Description of the drawings
Fig. 1 is the overall framework of the power line carrier communication Test Networking of topological structure flexible transformation according to the present invention
Figure.
Fig. 2 is the frame diagram of Test Networking topological structure unit according to an embodiment of the present invention.
Fig. 3 is stelliform connection topology configuration according to an embodiment of the present invention.
Fig. 4 is tree topology according to an embodiment of the present invention.
Fig. 5 is bus type topological structure according to an embodiment of the present invention.
Fig. 6 is ring topology according to an embodiment of the present invention.
Specific implementation mode
Below in conjunction with the accompanying drawings, the specific implementation mode of the present invention is described in detail, it is to be understood that the guarantor of the present invention
Shield range is not restricted by specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " comprising " or its change
It changes such as "comprising" or " including " etc. and will be understood to comprise stated element or component, and do not exclude other members
Part or other component parts.
Fig. 1 is the overall framework of the power line carrier communication Test Networking of topological structure flexible transformation according to the present invention
Figure.As shown, the Test Networking includes industrial personal computer unit 101, and interchanger and serial server unit 102, signal noise note
Enter unit 103, programmable impedance converter unit 104, Test Networking topological structure unit 105.
Industrial personal computer unit 101 is the core of networking, is responsible for communicating with each equipment, realizes parameter configuration and statistical analysis is surveyed
Try data.
Interchanger realizes the connection of each program-controlled equipment and industrial personal computer in networking with serial server unit 102, forms one
Set control communication link.
Signal noise injection unit 103 includes signal generator and frequency spectrograph, noise signal is injected communication link, mainly
It simulates the noise jamming in practical application scene and spectrum monitoring is carried out to it.
Industrial personal computer carries out parameter configuration to programmable impedance converter unit 104, simulates the impedance operator of practical application scene.
Industrial personal computer carries out parameter configuration to Test Networking topological structure unit 105, simulates the topology knot of practical application scene
Structure.
Test Networking topological structure unit includes multiple shielded boxes, multiple radio signal transmission units.Include in shielded box
Tested carrier telecommunication, signal coupler.Its interior equipment is isolated from the outside world by shielded box, avoids external signal
Interference.Radio signal transmission unit includes programmable attenuator, fixed attenuator, RF cable, radio frequency connector and power splitter/conjunction
Road device subsystem etc..Tested carrier telecommunication couples a signal to radio signal transmission list by signal coupler
Member recycles program-controlled declines to make the transmission medium of signal become easy controlled radio-frequency line from uncontrollable power line
Subtract device to decay to the signal transmitted in radio-frequency line, achievees the purpose that control signal strength, may be implemented after networking flexibly
Topological transformation.
Fig. 2 is the frame diagram of Test Networking topological structure unit according to an embodiment of the present invention.To each it shield in Fig. 2
It covers case and each radio signal transmission unit is considered as a node, main to represent host node, 1 to 20 respectively represent a child node.
Pad value by controlling the programmable attenuator in radio signal transmission unit can make adjacent two nodes establish communication or
Communication is disconnected, so as to realize flexible topological transformation., it can be achieved that topological classification has star in the Test Networking topological structure
Type, tree-shaped, bus-type and ring topology, these topological structures are as shown in Figures 3 to 6.Fig. 3 is to all topologys shown in fig. 6
Solid line is communication path in structure, and dotted line is the path that signal cannot transmit.
The description of the aforementioned specific exemplary embodiment to the present invention is in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to the above instruction, can much be changed
And variation.The purpose of selecting and describing the exemplary embodiment is that explaining the specific principle of the present invention and its actually answering
With so that those skilled in the art can realize and utilize the present invention a variety of different exemplary implementation schemes and
Various chooses and changes.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (7)
1. a kind of power line carrier communication Test Networking of topological structure flexible transformation, is used to detect power line carrier communication and sets
Standby communication function, which is characterized in that the power line carrier communication Test Networking includes：
Industrial personal computer unit carries out parameter configuration and statistical analysis test data to each program-controlled equipment,
Interchanger and serial server unit, are electrically connected with the industrial personal computer unit, establish each program-controlled in the Test Networking
The connection of equipment and industrial personal computer forms a set of control communication link,
Signal noise injection unit is electrically connected with the interchanger and serial server unit, and noise signal is injected and is communicated
Link, to simulate the noise jamming in practical application scene and carry out spectrum monitoring to it,
Programmable impedance converter unit, it is electric with the interchanger and serial server unit and the signal noise injection unit
Property connection, the industrial personal computer unit to the programmable impedance converter unit carry out parameter configuration to simulate practical application scene
Impedance operator, and
Test Networking topological structure unit, with the interchanger and serial server unit and the programmable impedance converter unit
It is electrically connected, the industrial personal computer unit carries out parameter configuration to the Test Networking topological structure unit and actually answered to simulate
With the topological structure of scene.
2. the power line carrier communication Test Networking of topological structure flexible transformation according to claim 1, which is characterized in that
The signal noise injection unit includes signal generator and frequency spectrograph.
3. the power line carrier communication Test Networking of topological structure flexible transformation according to claim 1, which is characterized in that
The Test Networking topological structure unit includes multiple shielded boxes and multiple radio signal transmission units,
Tested carrier telecommunication and signal coupler are placed in the shielded box, it is dry for shielding outer signals
It disturbs, and
The radio signal transmission unit is electrically connected with the signal coupler, is used for radio signal transmission.
4. the power line carrier communication Test Networking of topological structure flexible transformation according to claim 3, which is characterized in that
The radio signal transmission unit includes programmable attenuator, and the tested carrier telecommunication is coupled by the signal
Device couples a signal to the radio signal transmission unit, and the industrial personal computer unit carries out parameter to the programmable attenuator and matches
It sets, to control radio signal transmission intensity.
5. the power line carrier communication Test Networking of topological structure flexible transformation according to claim 4, which is characterized in that
Using single shielded box and single radio frequency signal transmission unit as one group, multigroup carry out networking, by controlling each radio frequency
The signal transmission strength of signal transmission unit and then communications status between control group and group, to realize that topological structure flexibly becomes
It changes.
6. the power line carrier communication Test Networking of topological structure flexible transformation according to claim 5, which is characterized in that
The described group of communications status between group, which is divided into, is connected and disconnected from two kinds.
7. the power line carrier communication Test Networking of topological structure flexible transformation according to claim 5, which is characterized in that
The topological structure can be transformed to stelliform connection topology configuration, tree topology, bus type topological structure and ring topology knot
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711475990.4A CN108337017B (en) | 2017-12-29 | 2017-12-29 | Power line carrier communication test networking system with flexibly-transformed topological structure |
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| CN201711475990.4A CN108337017B (en) | 2017-12-29 | 2017-12-29 | Power line carrier communication test networking system with flexibly-transformed topological structure |
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| CN108337017A true CN108337017A (en) | 2018-07-27 |
| CN108337017B CN108337017B (en) | 2021-06-01 |
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| CN201711475990.4A Active CN108337017B (en) | 2017-12-29 | 2017-12-29 | Power line carrier communication test networking system with flexibly-transformed topological structure |
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Cited By (5)
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| CN110493063A (en) * | 2019-08-30 | 2019-11-22 | 北京智芯微电子科技有限公司 | The power line carrier multilevel network test macro injected and be wirelessly connected based on distributed noise |
| CN110535489A (en) * | 2019-08-08 | 2019-12-03 | 国网新疆电力有限公司电力科学研究院 | The acquisition and play system of low-voltage carrier communication high-frequency interferencing signal |
| CN110855326A (en) * | 2019-12-09 | 2020-02-28 | 华能澜沧江水电股份有限公司 | Photovoltaic array area component level power carrier communication system and working method thereof |
| CN112994746A (en) * | 2021-02-03 | 2021-06-18 | 中国电力科学研究院有限公司 | System and method for testing intermediate frequency power line carrier communication module for smart grid |
| CN116667882A (en) * | 2023-07-28 | 2023-08-29 | 北京智芯微电子科技有限公司 | Physical topology simulation device and networking test system |
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| CN112994746A (en) * | 2021-02-03 | 2021-06-18 | 中国电力科学研究院有限公司 | System and method for testing intermediate frequency power line carrier communication module for smart grid |
| CN112994746B (en) * | 2021-02-03 | 2022-10-04 | 中国电力科学研究院有限公司 | System and method for testing intermediate frequency power line carrier communication module for smart grid |
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| CN116667882B (en) * | 2023-07-28 | 2023-12-15 | 北京智芯微电子科技有限公司 | Physical topology simulation device and networking test system |
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