CN206807450U - A kind of test device of carrier telecommunication - Google Patents
A kind of test device of carrier telecommunication Download PDFInfo
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- CN206807450U CN206807450U CN201720553449.XU CN201720553449U CN206807450U CN 206807450 U CN206807450 U CN 206807450U CN 201720553449 U CN201720553449 U CN 201720553449U CN 206807450 U CN206807450 U CN 206807450U
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Abstract
The utility model provides the test device of carrier telecommunication, including AC power, wave filter, modular converter, attenuator, logging modle, control module, indicating module；AC power both ends connect a wave filter and carrier telecommunication；Modular converter one end is connected between wave filter and carrier telecommunication, and the other end is connected with an attenuator；Control module, it is connected with attenuator, logging modle, indicating module；Attenuator, it is connected with control module, control module controls the pad value of attenuator；Logging modle, one end are connected between AC power and wave filter, are gathered and are recorded test data, and the other end is connected with control module, send test data to control module, control module read test data, judge the test result of carrier telecommunication；Indicating module, control indicating module show test result.Using above-mentioned technical proposal, pure test environment can be established, improves the test result accuracy of equipment under test.
Description
Technical field
It the utility model is related to the testing field of carrier telecommunication, more particularly to a kind of power line carrier communication
The test device of equipment.
Background technology
Power line carrier communication (PLC) is the communication mode that power system is distinctive, basic, and it refers to utilize existing electric power
Line, analog or digital signal is carried out to the technology of high-speed transfer by carrier system.But low-voltage power line is not specially to use
To transmit communication data, its topological structure and physical characteristic all with traditional communication transmission media, such as twisted-pair feeder, 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
Decay is big, channel time delay, and this communication performance to carrier telecommunication proposes very high requirement.But current test dress
Put, means of testing has certain limitation, the communication function of carrier communication product can not rationally be verified, particularly outside
In the case that boundary's noise jamming is very strong, the performance test of carrier telecommunication is difficult to.
Therefore, it is necessary to which a kind of test device of new carrier telecommunication, can establish a pure test wrapper
Border, improve the test result accuracy of equipment under test.
The content of the invention
In order to overcome above-mentioned technological deficiency, the purpose of this utility model is to provide a kind of carrier telecommunication
Test device.
The utility model discloses a kind of test device of carrier telecommunication, including AC power, wave filter,
Modular converter, attenuator, logging modle, control module, indicating module；The AC power both ends connect the filtering respectively
After device, it is connected with the carrier telecommunication, is powered for the carrier telecommunication, forms an alternating current wires
Road；Described modular converter one end is connected between the wave filter and the carrier telecommunication, the other end and an institute
Attenuator connection is stated, the modular converter forms a carrier communication circuit with the attenuator；The control module, declined with described
Subtract device, the logging modle, indicating module connection；The attenuator, it is connected 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 and the wave filter, collection
And test data is recorded, the other end is connected with the control module, sends the test data to the control module, described
Control module reads the test data, according to the test data, judges the test result of carrier telecommunication；Institute
Indicating module is stated, is connected with the control module, controls the indicating module to show the survey of the carrier telecommunication
Test result.
Preferably, the modular converter is used to the differential signal by the carrier communication circuit 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 also include USB interface, mould are interacted with one by the USB interface
Block connects.
Preferably, the control module also includes microprocessor, and described microprocessor one end is connected with the USB interface,
And then be connected with the interactive module, one end is connected with the GPIO interface, so with the attenuator, the logging modle,
The indicating module connection；The interactive module controls the microprocessor to set the pad value of the attenuator；Institute
The test data of logging modle described in microcomputer reads is stated, and sends it to the interactive module, in the interaction
Shown in module；The microprocessor calculates according to the test data, and controls the indicating module to show the test knot
Fruit.
Preferably, the attenuator is connected with coupler.
Preferably, the coupler is connected with a SMA connectors.
Preferably, the wave 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 between the carrier telecommunication to the signal
Isolation.
Preferably, the power supply changeover device is one or both of AC-DC converter, dc-dc.
After employing 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 circumstances
Border；
2. by interaction center, means are adjusted to so that transport channel parameters are program-controlled, establish the power line carrier of automation
The performance testing device of communication equipment.
Brief description of the drawings
Fig. 1 is that the structure for meeting the test device of carrier telecommunication in the preferred embodiment of the utility model one is shown
It is intended to.
Reference：
10- AC powers, 11- wave filters, 12- modular converters, 13- attenuators, 14- logging modles, 15- control modules,
16- indicating modules, 17- power supply changeover devices, 18- coupler interfaces.
Embodiment
The advantages of the utility model is expanded on further below in conjunction with accompanying drawing and specific embodiment.
It is the schematic diagram of the test device preferred embodiment of carrier telecommunication of the present utility model with reference to figure 1,
Including AC power 10, wave filter 11, modular converter 12, attenuator 13, logging modle 14, control module 15, indicating module 16；
- AC power 10, there is provided 110V or 220V alternating current to test device, be additionally provided with power switch, can open
Or power supply is closed, and be connected with power supply indicator, power supply indicator display power supply opens or closes state；
- wave filter 11, the both ends of AC power 10 connect a wave filter 11 respectively, then connect with carrier telecommunication
Connect, powered for carrier telecommunication, form an alternating current transmission line.On the alternating current transmission line, wave filter 11 was used for
Filter extraneous low pressure noise signal, it is preferable that to coordinate detection of the engineer on power circuit, can be used three-phase alternating current purification steady
Voltage source.Both ends of power is connected with wave 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 circumstances after to the noise filtering in power supply signal
Carrier telecommunication provides testable environment, allows equipment under test not by external environmental interference.
- modular converter 12, one end are connected between wave filter 11 and carrier telecommunication, the other end and a decay
Device 13 connects, and modular converter 12 and attenuator 13 form an independent carrier communication circuit, and on alternating current transmission line completely every
, 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 circuit, decayed by adjusting
Device 13 can be realized may be configured as a fixed value (such as to carrier signal by leading to disconnected progressive process, the attenuation of attenuator 13
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., can by break-make situation of the analog carrier signal of attenuator 13 under each actual conditions
Performance of the equipment under test under such break-make situation is tested, so as to complete the test to equipment under test.
- logging modle 14, can be three-phase intelligent ammeter, one end is connected between AC power 10 and wave filter 11, collection
And the series data such as recording status, energy value, the other end are connected with control module 15, transfer data to control module 15, by
Control module 15 reads data；
- control module 15, the function of carrier communication circuit main website is served as, pass through Ethernet/USB/ serial bus and decay
Device 13, logging modle 14, indicating module 16 connect, and so as to realize the control to test environment, while carry 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 indicating 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 disconnected equipment under test not up to requires performance.
- indicating module 16, it is two performance indicator lamps, is connected with control module 15, is instructed according to control module 15, shows
Whether carrier telecommunication reaches performance requirement.For example, the different bright dark situations by indicator lamp and face when illuminating
Pornographic condition, show different test results.
Based on above-mentioned configuration, by power line transmission path, under the control of control module 15, attenuator 13 is with being tested
Equipment carries out carrier communication, changes the fading channel of carrier communication circuit, and logging modle 14 receives what control module 15 was sent
Control, meter reading etc. are ordered, and the series data such as posting status, energy value, are changed test condition, are gathered and record different test conditions
Under parameters and index, control module 15 reads the data of logging modle 14, and analyzes, diagnoses and assess tested set accordingly
Standby communication performance, control indicating module 16 show whether equipment under test reaches performance requirement.
In a preferred embodiment, modular converter 12 can be designed as a Balun circuit, pass through carrier communication for
The differential signal of circuit 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
14th, indicating module 16 connects, in addition to USB interface, is connected by USB interface with an extraneous interactive module, user can pass through
Operation in interactive module, it would be desirable to which the input such as the amount of the decay of attenuator 13, data of test is to control module 15, to control
Molding block 15 is further tested equipment under test according to the requirement of user.
Test device may also include microprocessor, and microprocessor one end is connected with USB interface, and then connect with interactive module
Connect, one end is connected with GPIO interface, and then is connected with attenuator 13, logging modle 14, indicating module 16；User's operating interactive mould
Block, microprocessor is controlled by setting interactive module, and then the pad value of attenuator 13 is set, microcomputer reads record
The data of module 14, send it to interactive module, are shown in interactive module, and microprocessor carries out analysis calculating to data,
And the communication performance of equipment under test is assessed accordingly, control indicating module 16 shows whether equipment under test reaches performance requirement.
Other preferably or alternatively, attenuator 13 connects a coupler, and one, the coupling of coupler are formed with coupler
Device interface 18 is connected with a SMA connectors again.Wave filter 11 is low pass filter 11, is not had to signal of the frequency less than 10KHz
Influence, carrier signal of the frequency between 1MHz to 200MHz is decayed with 60dB, the electric current passed through is up to 6A.LPF
Device 11 forms 100dB isolation between equipment under test to carrier signal.Power supply changeover device 17 be AC-DC converter, DC-DC turn
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
Totally without making an uproar, the test result degree of accuracy is guaranteed the whole test environment that device is built.
It should be noted that embodiment of the present utility model has preferable implementation, and not the utility model is appointed
The limitation of what form, any one skilled in the art change or are modified to possibly also with the technology contents of the disclosure above
Same effective embodiment, as long as without departing from the content of technical solutions of the utility model, according to the technical essence of the utility model pair
Any modification or equivalent variations and modification that above example is made, in the range of still falling within technical solutions of the utility model.
Claims (9)
1. a kind of test device of carrier telecommunication, including AC power, wave filter, modular converter, attenuator, note
Record module, control module, indicating module；
After the AC power both ends connect a wave filter respectively, it is connected with the carrier telecommunication, for institute
Carrier telecommunication power supply is stated, forms an alternating current transmission line；
Described modular converter one end is connected between the wave filter and the carrier telecommunication, the other end and an institute
Attenuator connection is stated, the modular converter forms a carrier communication circuit with the attenuator；
The control module, it is connected with the attenuator, the logging modle, the indicating module；
The attenuator, it is connected with the control module, the control module controls the pad value of the attenuator；
The logging modle, one end are connected between the AC power and the wave filter, are gathered and are recorded test data, another
End is connected with the control module, sends the test data to the control module, the control module reads the survey
Data are tried, according to the test data, judge the test result of the carrier telecommunication；
The indicating module, it is connected with the control module, controls the indicating module to show that the power line carrier communication is set
Standby test result.
2. the test device of carrier telecommunication as claimed in claim 1, it is characterised in that
The modular converter is used to the differential signal by the carrier communication circuit be converted to single-ended signal, while by described in
Single-ended signal is sent to the attenuator.
3. the test device of carrier telecommunication as claimed in claim 1, it is characterised 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 also includes USB interface, is connected by the USB interface with an interactive module.
4. the test device of carrier telecommunication as claimed in claim 3, it is characterised in that
The control module also includes microprocessor, and described microprocessor one end is connected with the USB interface, so with the friendship
Mutual module connection, one end are connected with the GPIO interface, so with the attenuator, the logging modle, the indicating module
Connection；
The interactive module controls the microprocessor to set the pad value of the attenuator；
The test data of logging modle described in the microcomputer reads, and the interactive module is sent it to, in institute
State in interactive module and show；
The microprocessor calculates according to the test data, and controls the indicating module to show the test result.
5. the test device of carrier telecommunication as claimed in claim 4, it is characterised in that
The attenuator is connected with coupler.
6. the test device of carrier telecommunication as claimed in claim 5, it is characterised in that
The coupler is connected with a SMA connectors.
7. the test device of carrier telecommunication as claimed in claim 1, it is characterised in that
The wave 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, it is characterised in that
The low pass filter forms 100dB isolation between the carrier telecommunication to the signal.
9. the test device of carrier telecommunication as claimed in claim 1, it is characterised in that
Also include power supply changeover device, the power supply changeover device is one or both of AC-DC converter, dc-dc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720553449.XU CN206807450U (en) | 2017-05-18 | 2017-05-18 | A kind of test device of carrier telecommunication |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720553449.XU CN206807450U (en) | 2017-05-18 | 2017-05-18 | A kind of test device of carrier telecommunication |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111147324A (en) * | 2019-12-17 | 2020-05-12 | 国网北京市电力公司 | Multi-dimensional integrated detection and evaluation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111147324A (en) * | 2019-12-17 | 2020-05-12 | 国网北京市电力公司 | Multi-dimensional integrated detection and evaluation system |
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