CN205681426U - A kind of repeater blocking test device - Google Patents
A kind of repeater blocking test device Download PDFInfo
- Publication number
- CN205681426U CN205681426U CN201620560673.7U CN201620560673U CN205681426U CN 205681426 U CN205681426 U CN 205681426U CN 201620560673 U CN201620560673 U CN 201620560673U CN 205681426 U CN205681426 U CN 205681426U
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- Prior art keywords
- signal generator
- isolator
- gsm
- analyser
- repeater
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Abstract
The utility model discloses a kind of repeater blocking test device, control device, GSM digital high-frequency amplification station, analyser, interference signal generator, the first isolator, the second isolator, combiner, attenuator, GSM signal generator；Described interference signal generator is connected with the first input end of described combiner by described first isolator；Described GSM signal generator is connected with the second input of described combiner by described second isolator；The outfan of described combiner passes sequentially through described GSM digital high-frequency amplification station, described attenuator is connected with described analyser；Described control device is connected with described interference signal generator, described GSM digital high-frequency amplification station and described analyser respectively.Implement this utility model, it is possible to make the test result of digital high-frequency amplification station blocking test more accurately, reliably.
Description
Technical field
This utility model relates to field tests, particularly relates to a kind of repeater blocking test device.
Background technology
Repeater belongs to the one of repeater (REPEATER), is the connection equipment above networked physics layer.It has been applicable to
The interconnection of two exactly the same class networks, major function is by resending data signal or forward, expanding network
The distance of transmission.Repeater is the physical layer equipment of the network equipment osi model regenerating signal and reducing, and is LAN
Being used for extending the most cheap InterWorking Equipment of network distance under environment, operate the physical layer at OSI, repeater is to online
Signal on road has the function amplifying regeneration.For extending the length of LAN segment. it is only used for connecting identical LAN
The network segment.
Repeater Clogging indicator is an important indicator of repeater, and this index directly affects repeater in actual rings
Time in the use of border, the impact that repeater is caused by spatial interference signal, if repeater does not reaches index request, when interference signal
Repeater index own can be caused when intensity exceedes certain value to deteriorate, thus the problem such as cause communication bad.
Existing GSM digital high-frequency amplification station blocking test device is as shown in Figure 1: interference signal generator and GSM signal generator
Connecting combiner by radio-frequency cable, combiner connects GSM digital high-frequency amplification station by radio-frequency cable, and GSM digital high-frequency amplification station passes through
Radio-frequency cable connects attenuator, and attenuator passes through radio-frequency cable linking parsing instrument.Control device and connect GSM numeral by data wire
Repeater, GSM signal generator and analyser connect 10MHz synchronizing signal by data wire.Tester controls to disturb signal
Generator output various interference signals, simultaneously the test data on observation analysis instrument.
Technique scheme has following defects that
The isolation of combiner itself be have a range of, so likely can produce dry between two signal generators
Disturbing, the signal of one of them signal generator output can enter another one signal generator, when combiner by combiner
During isolation scope deficiency, it is possible to the signal quality of another one signal generator can be affected, it is possible to test knot can be caused
The most incorrect.
Utility model content
The purpose of this utility model embodiment is to provide a kind of repeater blocking test device, it is possible to make digital high-frequency amplification station hinder
The test result of plug test is more accurately, reliably.
This utility model embodiment provides a kind of repeater blocking test device, it is characterised in that include controlling device,
GSM digital high-frequency amplification station, analyser, interference signal generator, the first isolator, the second isolator, combiner, attenuator, GSM believe
Number generator；
Described interference signal generator is connected with the first input end of described combiner by described first isolator；
Described GSM signal generator is connected with the second input of described combiner by described second isolator；
The outfan of described combiner passes sequentially through described GSM digital high-frequency amplification station, described attenuator with described analyser even
Connect；
Described control device respectively with described interference signal generator, described GSM digital high-frequency amplification station and described analyser
Connect.
As the improvement of such scheme, described control device connects described GSM digital high-frequency amplification station, interference letter by data wire
Number generator and analyser.
As the improvement of such scheme, GSM signal generator is connected by data wire with analyser.
As the improvement of such scheme, described GSM signal generator connects described second isolator by radio-frequency cable；Institute
State interference signal generator and connect described first isolator by radio-frequency cable；
Described first isolator and described second isolator connect described combiner by radio-frequency cable, and described combiner leads to
Crossing radio-frequency cable and connect GSM digital high-frequency amplification station, described GSM digital high-frequency amplification station connects attenuator, described decay by radio-frequency cable
Device passes through radio-frequency cable linking parsing instrument.
As the improvement of such scheme, described repeater blocking test device also includes electromagnetic shielding chamber, and described control fills
Put, GSM digital high-frequency amplification station, interference signal generator, the first isolator, combiner, attenuator, analyser, GSM signal occur
Device, the second isolator are placed in described electromagnetic shielding chamber interior.
As the improvement of such scheme, described attenuator is displacement type optical attenuator, film type optical attenuator or decay
Flap-type optical attenuator.
As the improvement of such scheme, described analyser is spectrum analyzer, transmitter measuring and analysing meter or signal analysis
Instrument.
Compared with prior art, repeater of the present utility model blocking test device has the advantages that this practicality
Novel provided repeater blocking test device includes controlling device, GSM digital high-frequency amplification station, analyser, the generation of interference signal
Device, the first isolator, the second isolator, combiner, attenuator, GSM signal generator；Described interference signal generator passes through institute
State the first isolator to be connected with the first input end of described combiner；Described GSM signal generator passes through described second isolator
It is connected with the second input of described combiner；The outfan of described combiner passes sequentially through described GSM digital high-frequency amplification station, described
Attenuator is connected with described analyser；Described control device respectively with described interference signal generator, described GSM digital high-frequency amplification station
And described analyser connects.This utility model test device introduce two isolators, by the reverse signal of isolator every
From function, it is possible to largely reduce between two signal generators and affect, just reduce in addition to equipment to be tested because of
Several impacts on test result so that test result is more accurately, reliably.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of a kind of repeater blocking test device in prior art.
Fig. 2 is the structured flowchart of a kind of repeater blocking test device in this utility model.
Wherein: 11-controls device, 12-GSM digital high-frequency amplification station, 13-analyser, and 14-disturbs signal generator, 15-first
Isolator, 16-the second isolator, 17-combiner, 18-attenuator, 19-GSM signal generator, 20-electromagnetic shielding chamber.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under making creative work premise
The every other embodiment obtained, broadly falls into the scope of this utility model protection.
See Fig. 2, be the structural representation of a kind of repeater blocking test device that this utility model embodiment provides.Should
Repeater blocking test device includes controlling device 11, GSM digital high-frequency amplification station 12, analyser 13, interference signal generator 14, the
One isolator the 15, second isolator 16, combiner 17, attenuator 18 and GSM signal generator 19.
Described interference signal generator 14 is connected by the first input end of described first isolator 15 with described combiner 17
Connect；Described GSM signal generator 19 is connected with the second input of described combiner 17 by described second isolator 16；Described
The outfan of combiner 17 passes sequentially through described GSM digital high-frequency amplification station 12, described attenuator 18 is connected with described analyser 13；Institute
State control device 11 respectively with described interference signal generator 14, described GSM digital high-frequency amplification station 12 and described analyser 13 even
Connect.
Wherein, described control device 11 is connected with GSM digital high-frequency amplification station 12, for sending control to GSM digital high-frequency amplification station
System order, making GSM digital high-frequency amplification station output is predetermined power, can be specifically peak power output rollback 10dB.Described
Control device 11 to be also connected with analyser 13, for described analyser 13 transmitting control commands, make analyser 13 survey
Examination, and from described analyser 13 read test result, and judge that GSM digital high-frequency amplification station 12 increases according to the test result of analyser 13
Benefit reduces whether whether be more than 6% more than 6dB, EVM.Thus realize the test automatically of analyser 13 and the automatic guarantor of test result
Deposit, i.e. without the operated key of tester's manual operation analyser 13, and test result can be stored directly in control device
On 11, and without hand-kept, effectively raise testing efficiency.Described control device 11 also with interference signal generator 14 phase
Connect, be used for controlling to disturb signal generator 14 to export disturbance signal, make analyser 13 test.Thus judge GSM
Whether digital high-frequency amplification station blocks.
Concrete, control device 11 and pass through data with GSM digital high-frequency amplification station 12, interference signal generator 14 and analyser 13
Line connects, and GSM signal generator 19 and analyser 13 connect synchronizing signal by data wire.GSM signal generator 19 is by penetrating
Frequently cable connects the second isolator 16, and interference signal generator 14 connects the first isolator 15 by radio-frequency cable.First is unidirectional
Device 15 and the second isolator 16 connect combiner 17 by radio-frequency cable, and combiner 17 connects GSM digital direct by radio-frequency cable
Putting station 12, GSM digital high-frequency amplification station 12 connects attenuator 18 by radio-frequency cable, and attenuator 18 is by radio-frequency cable linking parsing instrument
13。
Wherein, device 11 concretely personal computer (personal computer is called for short and controls device) is controlled.Individual
People's computer one word stems from first desktop PC model of IBM in 1981 and controls device, has Apple before this
The home computer of II.Can independent operating, complete the personal computer of specific function.Personal computer need not share other
The resources such as the process of computer, disk and printer can also work alone.From desktop computer (or claim desk computer, desktop electricity
Brain), notebook computer to net book and panel computer and super etc. broadly fall into the category of personal computer.
In the present embodiment, control device 11 is that PC, PC are upper to be surveyed automatically equipped with signal generator auto-control software, audiofrequency spectrometer
Examination software and GSM digital high-frequency amplification station debugging software.Wherein, signal generator auto-control software and audiofrequency spectrometer automatic testing software
It is that virtual instrument technique based on LabVIEW carries out software automatically control signal source and audiofrequency spectrometer operation, builds and have automatically
Control and the analyser automatic control system of autorun.Use the global variable technology of LabVIEW, it is achieved control parameter
Real-time tracking show；Use the data storage technology of LabVIEW, it is achieved test initial data text and master control interface figure
Preservation as file.GSM digital high-frequency amplification station debugging software be GSM digital high-frequency amplification station manufacturer write can control GSM number
The software of word repeater.Tester can make interference signal occur by the signal generator auto-control software on operation PC
Device 14 exports various interference signal, and on observation PC, on the automatic testing software of analyser 13, EVM value carries out judging test knot simultaneously
Really.
Described GSM digital high-frequency amplification station 12 belongs to the one of repeater, is the connection equipment above networked physics layer.It is applicable to
The interconnection of identical two class networks, major function is by resending data signal or forward, expanding net
The distance of network transmission.
Described analyser 13 can be spectrum analyzer, transmitter measuring and analysing meter or signal analyzer.In the present embodiment,
It is preferably spectrum analyzer.It is mainly used in the frequency-domain analysis of radio frequency and microwave signal, including the power of measurement signal, frequency, loses
Real childbirth thing etc..Radio frequency and microwave signal can also be demodulated analyzing by it.
Described interference signal generator 14, for producing different interference signals in test process, interference signal is permissible
It is GSM signal or CW ripple.
Described first isolator 15 and the second isolator 16 are also known as directional filter, one-way isolator.It is from microwave device
Grow up in part circulator principle, design exclusively for radio communication transmitter, there is absorption from the external world by antenna feeder system
System enters the energy of the interference signal of transmitter, and protected transmitter, reduces the functions such as fault rate.
Described combiner 17 is that a road input signal energy is divided into two-way or the equal or unequal energy of multiple-channel output by one
The device of amount, it is possible in turn multiple signals energy is synthesized a road output, now can be also referred to as combiner.
Described attenuator 18, is in the frequency range specified, a kind of circuit in order to introduce a predetermined decay.Typically with
The decibels of introduced decay and the ohmage of characteristic impedance thereof are indicated.Constitute the basic material of RF/Microwave power attenuator
Material is resistive material.By certain technique, resistance material is just placed in the RF/Microwave Integrated Circuits structure of different-waveband
Define the attenuator of corresponding frequencies.If high power attenuator, volume to strengthen certainly, and key is exactly heat dissipation design.
Described GSM signal generator 19, also known as signal source (source or signal source) or agitator, is one
Plant and be provided that various frequency, waveform and the equipment of the output level signal of telecommunication.Measuring shaking of various telecommunication systems or telecommunication apparatus
When width characteristic, frequency characteristic, transmission characteristic and other electrical quantity, and when measuring characteristic and the parameter of components and parts, it is used as test
Signal source or driving source, have a wide range of applications in production practices and sciemtifec and technical sphere.GSM signal generator can export
The modulated signal of the various standard of GSM.
As technique scheme one preferred embodiment, described repeater blocking test device also includes electromagnetic screen
Cover room, described control device 11, GSM digital high-frequency amplification station 12, analyser 13, interference signal generator the 14, first isolator 15, close
It is internal that road device 17, attenuator 18, GSM signal generator the 19, second isolator 16 are placed in described electromagnetic shielding chamber 20.
Wherein, what electromagnetic shielding chamber 20 was main acts on isolation outside electromagnetic interference, it is ensured that indoor electronic, electrical equipment are just
Often work.Particularly in electronic component, the metering of electric equipment, test job, electromagnetic shielding chamber (or darkroom) is utilized to simulate
Desired electrical magnetic environment, improves the accuracy of testing result.Screened room blocks indoor electromagnetic radiation and outwardly spreads, strong electromagnetism
Radiation source should give shielding isolation, prevents from disturbing other electronics, the electrical equipment even infringement staff's health that normally works to be good for
Health.
Compared with prior art, repeater of the present utility model blocking test device has the advantages that this practicality
Novel provided repeater blocking test device includes controlling device, GSM digital high-frequency amplification station, analyser, the generation of interference signal
Device, the first isolator, the second isolator, combiner, attenuator, GSM signal generator；Described interference signal generator passes through institute
State the first isolator to be connected with the first input end of described combiner；Described GSM signal generator passes through described second isolator
It is connected with the second input of described combiner；The outfan of described combiner passes sequentially through described GSM digital high-frequency amplification station, described
Attenuator is connected with described analyser；Described control device respectively with described interference signal generator, described GSM digital high-frequency amplification station
And described analyser connects.This utility model test device introduce two isolators, by the reverse signal of isolator every
From function, it is possible to largely reduce between two signal generators and affect, just reduce in addition to equipment to be tested because of
Several impacts on test result so that test result is more accurately, reliably.
The above is preferred implementation of the present utility model, it is noted that for the ordinary skill of the art
For personnel, on the premise of without departing from this utility model principle, it is also possible to make some improvements and modifications, these improve and profit
Decorations are also considered as protection domain of the present utility model.
Claims (7)
1. a repeater blocking test device, it is characterised in that include controlling device, GSM digital high-frequency amplification station, analyser, doing
Disturb signal generator, the first isolator, the second isolator, combiner, attenuator, GSM signal generator；
Described interference signal generator is connected with the first input end of described combiner by described first isolator；
Described GSM signal generator is connected with the second input of described combiner by described second isolator；
The outfan of described combiner passes sequentially through described GSM digital high-frequency amplification station, described attenuator is connected with described analyser；
Described control device is connected with described interference signal generator, described GSM digital high-frequency amplification station and described analyser respectively.
2. repeater as claimed in claim 1 blocking test device, it is characterised in that described control device is by data wire even
Connect described GSM digital high-frequency amplification station, interference signal generator and analyser.
3. repeater as claimed in claim 1 blocking test device, it is characterised in that GSM signal generator and analyser lead to
Cross data wire to be connected.
4. repeater as claimed in claim 1 blocking test device, it is characterised in that described GSM signal generator is by penetrating
Frequently cable connects described second isolator；Described interference signal generator connects described first isolator by radio-frequency cable；
Described first isolator and described second isolator connect described combiner by radio-frequency cable, and described combiner is by penetrating
Frequently cable connects GSM digital high-frequency amplification station, and described GSM digital high-frequency amplification station connects described attenuator, described decay by radio-frequency cable
Device connects described analyser by radio-frequency cable.
5. the repeater blocking test device as described in claim 1-4 is arbitrary, it is characterised in that described repeater blocking test
Device also includes electromagnetic shielding chamber, described control device, GSM digital high-frequency amplification station, interference signal generator, the first isolator, conjunction
Road device, attenuator, analyser, GSM signal generator, the second isolator are placed in described electromagnetic shielding chamber interior.
6. repeater as claimed in claim 5 blocking test device, it is characterised in that described attenuator is displacement type optical attenuation
Device, film type optical attenuator or decay flap-type optical attenuator.
7. repeater as claimed in claim 6 blocking test device, it is characterised in that described analyser be spectrum analyzer,
Transmitter measuring and analysing meter or signal analyzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620560673.7U CN205681426U (en) | 2016-06-12 | 2016-06-12 | A kind of repeater blocking test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620560673.7U CN205681426U (en) | 2016-06-12 | 2016-06-12 | A kind of repeater blocking test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205681426U true CN205681426U (en) | 2016-11-09 |
Family
ID=57432074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620560673.7U Expired - Fee Related CN205681426U (en) | 2016-06-12 | 2016-06-12 | A kind of repeater blocking test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205681426U (en) |
-
2016
- 2016-06-12 CN CN201620560673.7U patent/CN205681426U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161109 Termination date: 20200612 |
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| CF01 | Termination of patent right due to non-payment of annual fee |