CN108964703A - A kind of test device of carrier telecommunication - Google Patents
A kind of test device of carrier telecommunication Download PDFInfo
- Publication number
- CN108964703A CN108964703A CN201710351468.9A CN201710351468A CN108964703A CN 108964703 A CN108964703 A CN 108964703A CN 201710351468 A CN201710351468 A CN 201710351468A CN 108964703 A CN108964703 A CN 108964703A
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- module
- attenuator
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- carrier
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/46—Monitoring; Testing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/336—Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/46—Monitoring; Testing
- H04B3/48—Testing attenuation
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
The present invention provides the test devices of carrier telecommunication, including AC power source, filter, conversion module, attenuator, logging modle, control module, indicating module；AC power source both ends connect a filter and carrier telecommunication；Conversion module one end is connected between filter and carrier telecommunication, and the other end is connect with an attenuator；Control module is connect with attenuator, logging modle, indicating module；Attenuator is connect with control module, and control module controls the pad value of attenuator；Logging modle, one end are connected between AC power source and filter, collect and record test data, and the other end is connect with control module, send test data to control module, control module read test data judge the test result of carrier telecommunication；Indicating module, control instructions module show test result.After adopting the above technical scheme, a pure test environment can be established, the test result accuracy of equipment under test is improved.
Description
Technical field
The present invention relates to the testing field of carrier telecommunication more particularly to a kind of carrier telecommunications
Test device.
Background technique
Power line carrier communication (PLC) is the communication mode that electric system is distinctive, basic, it, which refers to, utilizes existing electric power
Analog or digital signal is carried out the technology of high-speed transfer by carrier system by line.But low-voltage power line is not specially to use
Transmit communication data, its topological structure and physical characteristic all with traditional communication transmission media, such as twisted pair, coaxial electrical
The differences such as cable, optical fiber.Low-voltage power line characteristic of channel when transmitting signal of communication is very complicated, and load is more, and noise jamming is strong, channel
Decaying is big, and channel time delay, this proposes very high requirement to the communication performance of carrier telecommunication.But current test dress
Set, means of testing has certain limitation, can not the communication function to carrier communication product rationally verified, especially outside
In the very strong situation of boundary's noise jamming, the performance test of carrier telecommunication is difficult to carry out.
Therefore, it is necessary to a kind of test devices of novel carrier telecommunication, can establish a pure test wrapper
The test result accuracy of equipment under test is improved in border.
Summary of the invention
In order to overcome the above technical defects, the purpose of the present invention is to provide a kind of tests of carrier telecommunication
Device.
The invention discloses a kind of test devices of carrier telecommunication, including AC power source, filter, conversion
Module, attenuator, logging modle, control module, indicating module；The AC power source both ends are separately connected a filter
Afterwards, it connect with the carrier telecommunication, powers for the carrier telecommunication, form an alternating current wires
Road；Described conversion module one end is connected between the filter and the carrier telecommunication, the other end and an institute
Attenuator connection is stated, the conversion module and the attenuator form a carrier communication route；The control module declines with described
Subtract device, the logging modle, indicating module connection；The attenuator is connect with the control module, the control module
Control the pad value of the attenuator；The logging modle, one end are connected between the AC power source and the filter, acquisition
And test data is recorded, the other end is connect with the control module, sends the test data to the control module, described
Control module reads the test data and judges the test result of carrier telecommunication according to the test data；Institute
Indicating module is stated, is connect with the control module, the survey that the indicating module shows the carrier telecommunication is controlled
Test result.
Preferably, the conversion module is used to the differential signal by the carrier communication route be converted to single-ended letter
Number, while the single-ended signal is sent to the attenuator.
Preferably, the control module includes GPIO interface, by the GPIO interface respectively with the attenuator, described
Logging modle, indicating module connection, the control module further includes USB interface, interacts mould with one by the USB interface
Block connection.
Preferably, the control module further includes microprocessor, and described microprocessor one end is connect with the USB interface,
And then connect with the interactive module, one end is connect with the GPIO interface, so with the attenuator, the logging modle,
The indicating module connection；The interactive module controls the microprocessor so that the pad value of the attenuator is arranged；Institute
The test data of logging modle described in microcomputer reads is stated, and sends it to the interactive module, in the interaction
It is shown in module；The microprocessor is calculated according to the test data, and is controlled the indicating module and shown the test knot
Fruit.
Preferably, the attenuator is connect with coupler.
Preferably, the coupler is connect with a SMA connector.
Preferably, the filter is low-pass filter, and signal of the frequency between 1MHz to 200MHz is declined with 60dB
Subtract.
Preferably, the low-pass filter forms 100dB to the signal between the carrier telecommunication
Isolation.
Preferably, the power adapter is one or both of AC-DC converter, DC-DC converter.
After above-mentioned technical proposal, compared with prior art, have the advantages that
1. filtering extraneous noise interferences, testable ring is provided for not testable equipment under test under normal conditions
Border；
2. being adjusted to means by interaction center so that transport channel parameters are program-controlled, establishing the power line carrier of automation
The performance testing device of communication equipment.
Detailed description of the invention
Fig. 1 is the structural representation for meeting the test device of carrier telecommunication in one embodiment of the present invention
Figure.
Appended drawing reference:
10- AC power source, 11- filter, 12- conversion module, 13- attenuator, 14- logging modle, 15- control module,
16- indicating module, 17- power adapter, 18- coupler interface.
Specific embodiment
Below in conjunction with attached drawing, the advantages of the present invention are further explained with specific embodiment.
It is the schematic diagram of the test device preferred embodiment of carrier telecommunication of the invention with reference to Fig. 1, including
AC power source 10, filter 11, conversion module 12, attenuator 13, logging modle 14, control module 15, indicating module 16；
AC power source 10 provides the alternating current of 110V or 220V to test device, is additionally provided with power switch, openable
Or power supply is closed, and connect with power supply indicator, power supply indicator display power supply opens or closes state；
Filter 11,10 both ends of AC power source are separately connected a filter 11, then connect with carrier telecommunication
It connects, powers for carrier telecommunication, form an alternating current transmission line.On the alternating current wires road, filter 11 was used for
Filter extraneous low pressure noise signal, it is preferable that for detection of the cooperation engineer on power circuit, can be used three-phase alternating current purification steady
Voltage source.Both ends of power is connect with filter 11, high-performance isolator, artificial mains network respectively, to realize integrated testability ring
Being effectively isolated for border and electricity network, can be not testable under normal conditions after to the noise filtering in power supply signal
Carrier telecommunication provides testable environment, allows equipment under test not by external environmental interference.
Conversion module 12, one end are connected between filter 11 and carrier telecommunication, the other end and a decaying
Device 13 connects, and conversion module 12 and attenuator 13 form an independent carrier communication route, and on alternating current wires road completely every
It, at least up to can not success communication in the case where disconnecting attenuation path from carrier signal；
Attenuator 13, the adjustable power line attenuator 13 of insertion loss amount on carrier communication route are decayed by adjusting
Device 13 may be implemented to may be configured as a fixed value (such as by leading to disconnected progressive process, the attenuation of attenuator 13 to carrier signal
20dB), it can also be started to step up from a certain amount of, the carrier wave of certain number (such as 100 times) is carried out under damp condition each time
Communication test, record communication success rate.It, can by break-make situation of 13 analog carrier signal of attenuator under each actual conditions
Performance of the equipment under test under such break-make situation is tested, to complete the test to equipment under test.
Logging modle 14 can be three-phase intelligent ammeter, and one end is connected between AC power source 10 and filter 11, acquisition
And the series datas such as recording status, energy value, the other end are connect with control module 15, transfer data to control module 15, by
Control module 15 reads data；
Control module 15 serves as the function of carrier communication route main website, passes through Ethernet/USB/ serial bus and decaying
Device 13, logging modle 14, indicating module 16 connect, to realize the control to test environment, while carrying out data interchange, control
Module 15 controls the attenuation of attenuator 13, and control logging modle 14 reads the data of logging modle 14, according to logging modle 14
Data control instructions module 16 show carrier telecommunication test result, if test result belongs in normal range (NR)
, then it can determine whether that the equipment under test reaches requirement performance.Same drop, if test result belongs in non-normal range, can sentence
The equipment under test that breaks not up to requires performance.
Indicating module 16 is two performance indicator lights, connect with control module 15, is instructed according to control module 15, display
Whether carrier telecommunication reaches performance requirement.For example, the bright dark situation of difference by indicator light and face when illuminating
Pornographic condition shows different test results.
Based on above-mentioned configuration, by power line transmission path, under the control of control module 15, attenuator 13 and tested
Equipment carries out carrier communication, changes the fading channel of carrier communication route, and logging modle 14 receives the sending of control module 15
The order such as control, meter reading, the series datas such as posting status, energy value change test condition, collect and record different test conditions
Under parameters and index, control module 15 reads the data of logging modle 14, and analyzes, diagnoses and assessment is tested sets accordingly
Standby communication performance, control instructions module 16 show whether equipment under test reaches performance requirement.
In a preferred embodiment, conversion module 12 can be designed as a Balun circuit, pass through carrier communication for
The differential signal of route is converted to single-ended signal, while single-ended signal is sent to attenuator 13.
It is further preferred that control module 15 includes GPIO interface, pass through GPIO interface and attenuator 13, logging modle
14, indicating module 16 connects, and further includes USB interface, is connect by USB interface with an extraneous interactive module, user can pass through
The amount for needing attenuator 13 to decay, data of test etc. are input to control module 15, to control by the operation in interactive module
Molding block 15 further tests equipment under test according to the requirement of user.
Test device may also include microprocessor, and microprocessor one end is connect with USB interface, and then connect with interactive module
It connects, one end is connect with GPIO interface, and then is connect with attenuator 13, logging modle 14, indicating module 16；User's operation interacts mould
By setting interactive module to control microprocessor, and then the pad value of attenuator 13 is arranged in block, microcomputer reads record
The data of module 14, send it to interactive module, show in interactive module, and microprocessor carries out analytical calculation to data,
And the communication performance of equipment under test is assessed accordingly, control instructions module 16 shows whether equipment under test reaches performance requirement.
Other preferably or optionally, attenuator 13 connects a coupler, forms one, the coupling of coupler with coupler
Device interface 18 is connect with a SMA connector again.Filter 11 is low-pass filter 11, and the signal to frequency lower than 10KHz does not have
Influence, carrier signal of the frequency between 1MHz to 200MHz is decayed with 60dB, by electric current be up to 6A.Low-pass filtering
Device 11 forms the isolation of 100dB between equipment under test to carrier signal.Power adapter 17 is AC-DC converter, DC-DC turns
One or both of parallel operation.
With above-mentioned with postponing, user can realize the test request to equipment under test by interactive device, meanwhile, test
Completely without making an uproar, test result accuracy is guaranteed the entire test environment that device is built.
It should be noted that the embodiment of the present invention has preferable implementation, and not the present invention is made any type of
Limitation, any one skilled in the art change or are modified to possibly also with the technology contents of the disclosure above equivalent effective
Embodiment, as long as without departing from the content of technical solution of the present invention, it is to the above embodiments according to the technical essence of the invention
Any modification or equivalent variations and modification, all of which are still within the scope of the technical scheme of the invention.
Claims (9)
1. a kind of test device of carrier telecommunication, including AC power source, filter, conversion module, attenuator, note
Record module, control module, indicating module；
It after the AC power source both ends are separately connected a filter, is connect with the carrier telecommunication, for institute
Carrier telecommunication power supply is stated, an alternating current transmission line is formed；
Described conversion module one end is connected between the filter and the carrier telecommunication, the other end and an institute
Attenuator connection is stated, the conversion module and the attenuator form a carrier communication route；
The control module is connect with the attenuator, the logging modle, the indicating module；
The attenuator is connect with the control module, and the control module controls the pad value of the attenuator；
The logging modle, one end are connected between the AC power source and the filter, collect and record test data, another
End is connect with the control module, sends the test data to the control module, the control module reads the survey
It tries data and the test result of the carrier telecommunication is judged according to the test data；
The indicating module is connect with the control module, is controlled the indicating module and is shown that the power line carrier communication is set
Standby test result.
2. the test device of carrier telecommunication as described in claim 1, which is characterized in that
The conversion module is used to the differential signal by the carrier communication route be converted to single-ended signal, while will be described
Single-ended signal is sent to the attenuator.
3. the test device of carrier telecommunication as described in claim 1, which is characterized in that
The control module includes GPIO interface, by the GPIO interface respectively with the attenuator, the logging modle, institute
State indicating module connection；
The control module further includes USB interface, is connect by the USB interface with an interactive module.
4. the test device of carrier telecommunication as claimed in claim 3, which is characterized in that
The control module further includes microprocessor, and described microprocessor one end is connect with the USB interface, so with the friendship
Mutual module connection, one end are connect with the GPIO interface, so with the attenuator, the logging modle, the indicating module
Connection；
The interactive module controls the microprocessor so that the pad value of the attenuator is arranged；
The test data of logging modle described in the microcomputer reads, and the interactive module is sent it to, in institute
It states in interactive module and shows；
The microprocessor is calculated according to the test data, and is controlled the indicating module and shown the test result.
5. the test device of carrier telecommunication as claimed in claim 4, which is characterized in that
The attenuator is connect with coupler.
6. the test device of carrier telecommunication as claimed in claim 5, which is characterized in that
The coupler is connect with a SMA connector.
7. the test device of carrier telecommunication as described in claim 1, which is characterized in that
The filter is low-pass filter, and signal of the frequency between 1MHz to 200MHz is decayed with 60dB.
8. the test device of carrier telecommunication as claimed in claim 7, which is characterized in that
The low-pass filter forms the isolation of 100dB between the carrier telecommunication to the signal.
9. the test device of carrier telecommunication as described in claim 1, which is characterized in that
It further include power adapter, the power adapter is one or both of AC-DC converter, DC-DC converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710351468.9A CN108964703B (en) | 2017-05-18 | 2017-05-18 | Testing device of power line carrier communication equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710351468.9A CN108964703B (en) | 2017-05-18 | 2017-05-18 | Testing device of power line carrier communication equipment |
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| Publication Number | Publication Date |
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| CN108964703A true CN108964703A (en) | 2018-12-07 |
| CN108964703B CN108964703B (en) | 2023-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710351468.9A Active CN108964703B (en) | 2017-05-18 | 2017-05-18 | Testing device of power line carrier communication equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113691280A (en) * | 2021-09-18 | 2021-11-23 | 广东电网有限责任公司 | Modular carrier communication testing arrangement |
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| CN102655422A (en) * | 2011-03-02 | 2012-09-05 | 华北电力科学研究院有限责任公司 | Test system for low-voltage power carrier communication equipment |
| US20160309352A1 (en) * | 2013-11-04 | 2016-10-20 | State Grid Corporation Of China | Intelligent power utilization communication product detecting system |
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| CN113691280A (en) * | 2021-09-18 | 2021-11-23 | 广东电网有限责任公司 | Modular carrier communication testing arrangement |
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| CN108964703B (en) | 2023-10-20 |
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