CN206060755U - Power line carrier communication performance automatic test system - Google Patents
Power line carrier communication performance automatic test system Download PDFInfo
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- CN206060755U CN206060755U CN201621064760.XU CN201621064760U CN206060755U CN 206060755 U CN206060755 U CN 206060755U CN 201621064760 U CN201621064760 U CN 201621064760U CN 206060755 U CN206060755 U CN 206060755U
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Abstract
This utility model is related to carrier communication field, discloses a kind of power line carrier communication performance automatic test system, to realize the automatic test of power line carrier communication performance.The system is included with the test main side of power line carrier communication and test from end, the system also includes the ethernet test subsystem being connected from end with the test main side and test, the ethernet test subsystem includes the control main frame of Ethernet switch and its connection and corresponding to the test main side and test from two sets of symmetrical test equipments at end, each test equipment is connected one to one from the bonder at end with the test main side and test, and bonder of the bonder of the test main side with the test from end is symmetrical.
Description
Technical field
This utility model is related to carrier communication field, more particularly to a kind of power line carrier communication performance automatic test
System.
Background technology
From the beginning of 1996, power line carrier communication is applied to low pressure centralized automatic meter-reading (abbreviation low-voltage collecting meter reading), and field is for the country
There is the time of nearly 20 years, the relatively low arrowband low-speed power line of the single-carrier modulated, traffic rate from initial FSK or PSK modulation
Carrier communication (traffic rate is typically in below 10kbps), to the of a relatively high narrow-band high-speed electric power of OFDM modulation, traffic rate
Line carrier communication (traffic rate is typically in more than 10kbps below 1Mbps), is obtained in low-voltage collecting meter reading field and widely should
With.As the policy of the strong intelligent grid of nation-building is put into effect, (OFDM is modulated the broadband power line carrier of higher rate, communication
Speed is in more than 1Mbps) also it is developed, and the trend of substituted arrowband low speed and narrow-band high-speed power line carrier communication.
The companies such as high pass, Mstar, Huawei Hai Si are proposed the broadband power line carrier chip based on HomePlug international standards,
Broadband power line carrier communication product based on these chip developments also has in low-voltage collecting meter reading system to be applied on a small quantity.Broadband power
Line carrier communication production producer, needs by (generally using chip producer to broadband power line carrier communication chip
Demo evaluation boards) communication performance carry out test assessment, so as to the chip development for selecting optimal communication performance is communicated product accordingly
Product.Utilities Electric Co. is when selecting broadband power line carrier communication products application in low-voltage collecting meter reading system, it is also desirable to broadband power
The communication performance of line carrier communication product carries out test assessment.The survey of arrowband low speed and narrow-band high-speed power line carrier communication performance
The method of testing and test system of the existing relative maturity of examination assessment, but also do not have Auto-Test System.As broadband power line is carried
Wave communication is applied to that low-voltage collecting meter reading field is relatively later, also do not have be specifically designed for broadband power line carrier communication performance test be
System, the test great majority of broadband power line carrier communication performance still adopt narrow-band power line carrier communication performance test system,
Have some limitations, cause test result not to be very accurate.
Utility model content
This utility model purpose is to disclose a kind of power line carrier communication performance automatic test system, to realize electric lines of force
The automatic test of carrier communication performance.
For achieving the above object, this utility model discloses a kind of power line carrier communication performance automatic test system, including
, from end, the carrier equipment of the test main side connection is carrier wave main equipment, and the test is from end connection for test main side and test
Carrier equipment is carrier wave from equipment, and the carrier wave main equipment is with the carrier wave from equipment with power line carrier communication；The system is also
Including with the test main side and test from the ethernet test subsystem that is connected of end, the ethernet test subsystem include with
Too the control main frame of network switch and its connection and corresponding to the test main side and test from two sets of symmetrical tests at end
Equipment, each test equipment are connected one to one from the bonder at end with the test main side and test, and the test master
Bonder of the bonder at end with the test from end is symmetrical.
Based on said system framework, the automatic test for power line carrier communication performance provides hardware foundation.And according to
The framework is held in the palm, easily relative analyses the data of main side and test from end can be tested, and be guaranteed to test main side and test from end institute
The synchronicity of sampled data, and then the accurate rate of test is improve, reduce error.
In this utility model, above-mentioned control main frame is used to set by Ethernet and the corresponding control protocol control test
, from the test held, the control main frame is mounted with testing system software, the testing system software for standby complete pairwise testing main side and test
Including：
Human-computer interaction interface；
Ethernet interface driver, for providing the interface support of testing system software and Ethernet；
Parameter setting module, the parameter setting, survey for providing the parameter setting support of test system, including test event
The setting of test system software；
Test equipment control module, for each test equipment is controlled and is processed, realizes that communication performance is tested
The process of flow process and the preservation of result and output；And
Management module, for each module of testing system software is uniformly coordinated and is managed.
Preferably, above-mentioned test equipment control module is additionally operable to by control unit corresponding with attenuator control test
Main side and test are from the pad value of the communication link between end.
To sum up, above-mentioned test system disclosed in the utility model can be specifically designed for the spy of broadband power line carrier communication
Point, is tested automatically to the communication performance of broadband power line carrier communication product.During concrete operations, only test parameter need to be entered
Row is arranged, and follow-up whole test process is without the need for manually participating in.What deserves to be explained is, by parameter designing, this test system is same
Suitable for the test of narrowband carrier communication performance, therefore the system has compatibility and autgmentability well.
Below with reference to accompanying drawings, this utility model is described in further detail.
Description of the drawings
The accompanying drawing for constituting the part of the application is used for providing further understanding to of the present utility model, of the present utility model
Schematic description and description is used to explain this utility model, does not constitute to improper restriction of the present utility model.In accompanying drawing
In：
Fig. 1 is power line carrier communication performance automatic test system Organization Chart disclosed in this utility model preferred embodiment；
Fig. 2 be this utility model preferred embodiment disclosed in the control main frame ATS software that loads and run
Logic diagram.
Specific embodiment
Embodiment of the present utility model is described in detail below in conjunction with accompanying drawing, but this utility model can be by right
It is required that the multitude of different ways for limiting and covering is implemented.
Embodiment 1
This utility model embodiment discloses a kind of power line carrier communication performance automatic test system, as shown in figure 1, this is
System includes：
With the test main side of power line carrier communication and test from end, wherein, the carrier equipment of the test main side connection is
Carrier wave main equipment, the test from the carrier equipment of end connection be carrier wave from equipment, the carrier wave main equipment and the carrier wave from equipment with
Power line carrier communication；And the ethernet test subsystem (test in illustrating being connected from end with test main side and test
Auxiliary equipment).
Wherein, the test main side shown in Fig. 1 is provided with that the main equipment test position of connection carrier wave main equipment is electrically connected with city
One alternating current steady voltage plug (alternating current steady voltage plug 1 in illustrating) and the bonder connected one to one with corresponding test equipment
(bonder 1, bonder 2 in illustrating, bonder 3), main equipment test position are connected with the respectively bonder wire and Jing successively
First LISN (LISN-1 in illustrating) and the first isolator (isolator 1 in illustrating) connection the first AC voltage-stabilizing electricity
Source.Wherein, abbreviations of the LISN for Line Impedance Stabilization Network, i.e. line impedance stabilization net work.
In the same manner, the test shown in Fig. 1 be provided with from equipment, connection carrier wave tests that position electrically connected with city from equipment from end the
Two alternating current steady voltage plugs (alternating current steady voltage plug 2 in illustrating) and the bonder connected one to one with corresponding test equipment
(bonder 4, bonder 5 in illustrating, bonder 6), is connected with the respectively bonder wire and Jing successively from equipment test position
2nd LISN (LISN-2 in illustrating) and the second isolator (isolator 2 in illustrating) connection the second AC voltage-stabilizing electricity
Source.
In the present embodiment, above-mentioned carrier wave main equipment can be broadband power line carrier main equipment, or arrowband electricity
Line of force carrier wave main equipment；In the same manner, above-mentioned carrier wave can also be that broadband power line carrier is carried from equipment or arrowband electric lines of force from equipment
Ripple is from equipment.
As shown in figure 1, the ethernet test subsystem in the present embodiment includes the control of Ethernet switch and its connection
Main frame (being illustrated as PC) and corresponding to test main side and test from end two sets symmetrical test equipments, each test equipment and
Test main side connects one to one from the bonder at end with test, and tests the bonder of main side and test the bonder pair from end
Claim distribution.Test equipment in figure includes：Oscillograph 1, oscillograph 2, audiofrequency spectrometer 1, audiofrequency spectrometer 2, signal generator 1 and signal are sent out
Raw device 2.Further, the ethernet test subsystem disclosed in the present embodiment also includes being connected to test main side with test from end
Between programmable attenuator and its corresponding control unit, programmable attenuator Jing control units connection Ethernet switch, and control
Unit processed is also connected with the carrier wave main equipment in test main side, described to control by control unit corresponding with attenuator with this
Test the pad value of main side and test from the communication link between end.Preferably, the programmable attenuator and the carrier wave for testing main side
Bonder is provided between main equipment, in the same manner, the programmable attenuator and test are from the carrier wave between end from coupling also is provided between equipment
Clutch.
Preferably, test system disclosed in this utility model can also be further provided with an at least shielded box with accommodating survey
At least one end of examination main side and test from end, optionally, the test main side and/or test in shielded box is from end with BNC
(Bayonet Nut Connector, snap-fit adapter) interface is connected with corresponding test equipment.In the present embodiment,
As shown in figure 1, the shielded box is preferably provided at test from end, power line carrier signal is distinguished with ELECTROMAGNETIC RADIATION SIGNATURE with this
Open, it is to avoid the ELECTROMAGNETIC RADIATION SIGNATURE of test main side is interfered from the reception signal at end to test, improves the accurate of test data
Rate.
Optionally, as shown in figure 1, the effect of the detailed annexation of said system and functional module is as follows：
In test main side：Civil power provides stable 220V alternating current power supply to test main side by alternating current steady voltage plug 1, isolates
The interference of the isolation electrical network input of device 1, LISN-1 provide the electric power environmental of impedance stabilization for bandwidth carrier main equipment.Bandwidth carrier master
The forceful electric power terminal of equipment, bonder 1, bonder 2 and bonder 3 is connected with the forceful electric power terminal of LISN-1 by electric lines of force.
The light current terminal (BNC connector) of LISN-1 is connected with audiofrequency spectrometer 1 by coaxial shielding line.(BNC connects the light current terminal of bonder 1
Head) it is connected with programmable attenuator by coaxial shielding line.The light current terminal (BNC connector) of bonder 2 by coaxial shielding line with
Signal generator 1 connects.The light current terminal (BNC connector) of bonder 3 is connected with oscillograph 1 by coaxial shielding line.Broadband carries
Ripple main equipment UART (Universal Asynchronous Receiver/Transmitter, universal asynchronous receiving-transmitting transmitter)
Data-interface is connected with the UART data-interfaces of control unit by data wire.
In test from end：Civil power provides stable 220V alternating current power supply from end for test by alternating current steady voltage plug 2, isolates
The interference of the isolation electrical network input of device 2, LISN-2 provide the electric power environmental of impedance stabilization for bandwidth carrier from equipment.Bandwidth carrier from
The forceful electric power terminal of equipment, bonder 4, bonder 5 and bonder 6 is connected with the forceful electric power terminal of LISN-2 by electric lines of force.LISN-
2 light current terminal passes through coaxial shielding line and the BNC2 joints on shielded box are connected with audiofrequency spectrometer 2.The light current terminal of bonder 4
BNC4 joints by coaxial shielding line and on shielded box are connected with programmable attenuator.The light current terminal of bonder 5 is by coaxial
BNC3 joints on shielding line and shielded box are connected with signal generator 2.The light current terminal of bonder 6 pass through coaxial shielding line and
BNC1 joints on shielded box are connected with oscillograph 2.
In ethernet test subsystem：Two oscillographs (1,2), two audiofrequency spectrometers (1,2), two signal generators (1,
2) and control unit is passed through Ethernet interface and Ethernet switch respectively and is connected with PC, networking Ethernet mutually enters
Row data exchange.
Based on said system framework, the automatic test for power line carrier communication performance provides hardware foundation.And according to
The framework is held in the palm, easily relative analyses the data of main side and test from end can be tested, and be guaranteed to test main side and test from end institute
The synchronicity of sampled data, and then the accurate rate of test is improve, reduce error.
In the present embodiment, above-mentioned control main frame is used to complete by Ethernet and corresponding control protocol control test equipment
To testing the test of main side and test from end, control main frame is mounted with testing system software, and testing system software includes：
Human-computer interaction interface.
Ethernet interface driver, for providing the interface support of testing system software and Ethernet.
Parameter setting module, the parameter setting, survey for providing the parameter setting support of test system, including test event
The setting of test system software.
Test equipment control module, for each test equipment is controlled and is processed, realizes communication performance testing process
Process and result preservation and output.Further, the test equipment control module is additionally operable to by corresponding with attenuator
Control unit is controlling to test main side and test from the pad value of the communication link between end.Optionally, above-mentioned communication performance is surveyed
Examination includes carrier operation frequency band, transmit power spectrum density, receiving sensitivity, anti-decay property, noise proof feature, communicates into
Any one in power or combination in any.
Management module, for each module of testing system software is uniformly coordinated and is managed.
Further, the systems soft ware can also arrange test report and generate and output module, to complete in test job
Afterwards, test result is provided with and reports and export and be stored in the hard disk of PC.
Fig. 2 shows a kind of testing system software block diagram divided the work and more refine, and above-mentioned test equipment control module is done
Further fractionation, the framework division of labor after fractionation more clearly, so as to be more conducive to the exploitation and maintenance of software, and then improve the survey
The stability and reliability of test system software.Specifically, above-mentioned test equipment control module is split into：
Be respectively directed to each test equipment and associate device be controlled and process oscillograph control process module, audiofrequency spectrometer
Control process module, signal generator control process module and control unit control process module；And
It is respectively directed to the receiving sensitivity test module of the properties of test, communicate success rate test module, antinoise
Jamming performance test module, anti-decay property test module, transmit power spectrum density and communication band test module etc..
To sum up, the above-mentioned test system disclosed in the present embodiment can be specifically designed for the spy of broadband power line carrier communication
Point, is tested automatically to the communication performance of broadband power line carrier communication product.During concrete operations, only test parameter need to be entered
Row is arranged, and follow-up whole test process is without the need for manually participating in.What deserves to be explained is, by parameter designing, this test system is same
Suitable for the test of narrowband carrier communication performance, therefore the system has compatibility and autgmentability well.
Preferred embodiment of the present utility model is the foregoing is only, this utility model is not limited to, for this
For the technical staff in field, this utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvements made etc. are should be included within protection domain of the present utility model.
Claims (8)
1. a kind of power line carrier communication performance automatic test system, including test main side and test are from end, the test main side
The carrier equipment of connection be carrier wave main equipment, the test from end connection carrier equipment be carrier wave from equipment, the carrier wave master
Equipment is with the carrier wave from equipment with power line carrier communication；Characterized in that, the system also include with the test main side and
The ethernet test subsystem from end connection is tested, the ethernet test subsystem includes Ethernet switch and its connection
Control main frame and corresponding to the test main side and test from end two sets symmetrical test equipments, each test equipment and
The test main side and test from end bonder connect one to one, and the bonder of the test main side with it is described test from
The bonder at end is symmetrical.
2. power line carrier communication performance automatic test system according to claim 1, it is characterised in that the test master
End be provided with connect the carrier wave main equipment main equipment test position and the first alternating current steady voltage plug that city electrically connects and with it is corresponding
The bonder that the test equipment connects one to one, main equipment test position are connected with the respectively bonder wire and Jing successively
First LISN and the first isolator connect first alternating current steady voltage plug.
3. power line carrier communication performance automatic test system according to claim 1, it is characterised in that the test from
End be provided with the connection carrier wave from equipment from equipment test position and the second alternating current steady voltage plug that city electrically connects and with it is corresponding
The bonder that the test equipment connects one to one, it is described to be connected with the respectively bonder wire and Jing successively from equipment test position
2nd LISN and the second isolator connect second alternating current steady voltage plug.
4. the power line carrier communication performance automatic test system according to Claims 2 or 3, it is characterised in that the load
Ripple main equipment and the carrier wave are respectively broadband power line carrier main equipment and broadband power line carrier from equipment from equipment.
5. according to the arbitrary described power line carrier communication performance automatic test system of claims 1 to 3, it is characterised in that institute
Stating test equipment includes any one in oscillograph, audiofrequency spectrometer and signal generator or combination in any.
6. power line carrier communication performance automatic test system according to claim 5, it is characterised in that the Ethernet
Test subsystems also include being connected to the test main side with test from the programmable attenuator between end and its corresponding control list
Unit, the programmable attenuator Jing described control units connect the Ethernet switch, and described control unit also with the load
Ripple main equipment connects.
7. according to the arbitrary described power line carrier communication performance automatic test system of claims 1 to 3, it is characterised in that also
It is provided with an at least shielded box to house at least one end of the test main side and test from end.
8. power line carrier communication performance automatic test system according to claim 7, it is characterised in that the shielded box
The interior test main side and/or test are connected with the corresponding test equipment from end with bnc interface.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621064760.XU CN206060755U (en) | 2016-09-20 | 2016-09-20 | Power line carrier communication performance automatic test system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621064760.XU CN206060755U (en) | 2016-09-20 | 2016-09-20 | Power line carrier communication performance automatic test system |
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| CN206060755U true CN206060755U (en) | 2017-03-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106230486A (en) * | 2016-09-20 | 2016-12-14 | 湖南华烨智能通信技术股份有限公司 | Power line carrier communication performance automatic test system |
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- 2016-09-20 CN CN201621064760.XU patent/CN206060755U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106230486A (en) * | 2016-09-20 | 2016-12-14 | 湖南华烨智能通信技术股份有限公司 | Power line carrier communication performance automatic test system |
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