CN205864433U - Scramble testing system - Google Patents
Scramble testing system Download PDFInfo
- Publication number
- CN205864433U CN205864433U CN201620633442.4U CN201620633442U CN205864433U CN 205864433 U CN205864433 U CN 205864433U CN 201620633442 U CN201620633442 U CN 201620633442U CN 205864433 U CN205864433 U CN 205864433U
- Authority
- CN
- China
- Prior art keywords
- under test
- equipment under
- test
- frequency
- radio interface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses a kind of scramble testing system.Wherein, this system includes: protocol analyzer, is connected with equipment under test, is used for encouraging equipment under test, makes equipment under test work in default frequency, and makes equipment under test work in maximum transmission power state；Filter cell group, is connected with wireless radio interface case, for suppressing equipment under test to work in the amplitude of produced signal during default frequency；Audiofrequency spectrometer, is connected with wireless radio interface case, is used for measuring equipment under test and works in signal produced by default frequency；Wireless radio interface case, is connected with equipment under test, filter cell group and audiofrequency spectrometer respectively, is used for carrying out radio-frequency path switching.This utility model solves in prior art, by user, product is carried out manual configuration and makes RFID device work in fixing frequency, causes the technical problem that testing efficiency is low.
Description
Technical field
This utility model relates to signal testing field, in particular to a kind of scramble testing system.
Background technology
3rd tide of the world information industry that Internet of Things is known as after computer, the Internet, is to realize thing thing
Being connected, intelligentized a kind of network, Internet of Things possesses the tremendous potential developing into the new source of economic growth, gets more and more in the world
Country using Internet of Things as rear financial crisis era grand strategy dispose.The whole world is starting the upsurge of Internet of Things development.
In China, along with Internet of Things Natural calamity monitoring, frontier defense monitoring, occasion the field such as security the most widely
Application, Internet of Things has been listed in national emerging strategic industry.
A key technology in Internet of Things application is RFID (RF identification) technology, and so-called RFID label tag and RFID read
Card device is the most also sensor technology, and conventional RFID label tag can be divided into active and passive two kinds；Card reader can be divided into hands
Holding formula card reader and desk-top card reader, and some card reader has external antenna port, some card reader has integrated sky
Line.RFID technique is to have merged wireless radio-frequency and complex art that embedded technology is integrated.RFID technique is as Internet of Things
The important component part of net, has broad application prospects in identification, article logistics management etc. automatically.
Spurious emissions (spurious emission) refers to the transmitting of the one or more frequencies outside necessary bandwidth, its
Radio is flat can be reduced and will not affect the transmission of corresponding information；Spurious emissions comprises harmonic emissions, parasitic emission, intermodulation product
And frequency conversion product, but except out-of-band emission.Popular saying spuious removes operating frequency unexpected garbage signal power exactly.Spuious
Not only disturb other equipment normally to work, time serious, go back the healthy of entail dangers to people.The most each state has all worked out strict electricity
Sub-product radiation standard.After design of electronic products or sizing, generally will be through electromagnetic compatibility test, to check whether product accords with
Standardization, " spuious test " is a part for electromagnetic compatibility test.
Fig. 1 is the structural representation of a kind of traditional EMC scramble testing system according to prior art.Traditional EMC is miscellaneous
Scattered test system is primarily directed to conventional electronic devices and carries out spuious test.Along with the development of wireless technology, the spuious survey of traditional E MC
Test system upgrades to supporting the scramble testing system of Wireless Telecom Equipment, using Wireless Telecom Equipment as Devices to test, at electric wave
In darkroom, antenna receiving signal is switched by wireless radio interface case path, and system platform controls wireless comprehensive test instrument and EMI receives
Spurious signal analysis is measured by machine.
Existing scramble testing system is for electromagnetic compatibility (EMC) the spuious test of Wireless Telecom Equipment, in EMC tests
Clutter interference is an important test event, and the stray radiation that clutter interference is primarily referred to as outside a system frequency range falls into additionally
Interference in the reception frequency range of one system, Devices to test needs to be operated in assigned work frequency, duty.In prior art
Spuious test for RFID device has the drawback that
(1) RFID test equipment needs to be operated in assigned work frequency, duty by excitation to carry out spuious test,
Prior art is generally adopted and is manually made RFID work in appointment frequency；
(2) existing wireless scramble testing system wave filter is generally directed to wireless working frequency range and is configured, it is impossible to meet
RFID device is in 840-825MHz, bandwidth 250kHz；920-925MHz, bandwidth 250kHz；2405-2480MHz, bandwidth 5MHz
Index request.
(3) the spuious measurement of RFID needs to carry out according to the standard (not wireless standard) of regulation, existing ITE, wireless spuious survey
The measurement limit value of test system, Measurement bandwidth require spuious with RFID inconsistent.
For in prior art, by user, product is carried out manual configuration, make RFID device work in fixing frequency, lead
Cause the problem that testing efficiency is low, the most not yet propose effective solution.
Utility model content
This utility model embodiment provides a kind of scramble testing system, at least to solve in prior art, passes through user
Product carries out manual configuration makes RFID device work in fixing frequency, causes the technical problem that testing efficiency is low.
An aspect according to this utility model embodiment, it is provided that a kind of scramble testing system, including: protocal analysis
Instrument, is connected with equipment under test, is used for encouraging equipment under test, makes equipment under test work in default frequency, and makes equipment under test work
In maximum transmission power state；Filter cell group, is connected with wireless radio interface case, is used for suppressing equipment under test to work in pre-
If the amplitude of produced signal during frequency；Audiofrequency spectrometer, is connected with wireless radio interface case, is used for measuring equipment under test and works in
Preset signal produced by frequency；Wireless radio interface case, respectively with equipment under test, filter cell group and audiofrequency spectrometer phase
Even, being used for carrying out radio-frequency path switching, wherein, radio-frequency path includes: Radiated Spurious Emissions path, conduction stray transmission path with
And filter cell group path.
Further, system also includes: control station, is connected with protocol analyzer respectively, swashs for control protocol analyser
Encourage equipment under test；Control station is also connected with wireless radio interface case, is used for controlling wireless radio interface case and carries out path switching；Control
Platform processed is also connected with filter cell group, adjusts filter cell group for the working frequency points according to equipment under test and switches to and work
Make the filtering channel that frequency is corresponding；Control station is also connected with audiofrequency spectrometer, the signal detected for analysis spectrum instrument, obtains spuious
The test result of test.
Further, system also includes: electromagnetic shielding chamber, is arranged at protocol analyzer, equipment under test, wave filter, frequency spectrum
Outside instrument and control station, for the conduction stray offer test environment for measuring equipment under test.
Further, system also includes: signal source, is connected with wireless radio interface case, for when carrying out path alignment
Equipment under test is replaced to launch signal.
Further, system also includes: measures reception antenna, is connected with amplifier, is used for receiving equipment under test and works in
Preset signal produced by frequency；Amplifier, is connected to measure between reception antenna and wireless radio interface case, is used for amplifying quilt
Measurement equipment works in signal produced by default frequency.
Further, system also includes: turntable, is used for placing equipment under test and rotating；Mast, with measurement reception antenna
It is connected, for adjusting the height measuring reception antenna.
Further, system also includes: anechoic chamber, be arranged at equipment under test, measure reception antenna and amplifier it
Outward, for the radiation dispersion offer test environment for measuring equipment under test.
Further, control station is also connected with mast and turntable, for controlling the lifting of mast and the rotation of turntable
Turn.
Further, the center frequency point of filter cell group be following any one: 842.625MHz, 922.625MHz and
2440MHz。
Further, protocol analyzer is UHF or 2.4G protocol analyzer.
In this utility model embodiment, by using protocol analyzer that equipment under test is encouraged so that it is work in
Specify frequency, and use the wave filter being arranged at operating frequency corresponding to equipment under test assigned work frequency, solve existing skill
In art, by user, product is carried out manual configuration, make equipment under test work in fixing frequency, cause the technology that testing efficiency is low
Problem, it is proposed that be specifically designed for specifying the scramble testing system of equipment under test, thus reached to improve the technology effect of testing efficiency
Really, it is achieved that the autoexcitation of equipment under test controls the technical purpose of the full-automatic spuious test of function.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by of the present utility model, constitutes the part of the application,
Schematic description and description of the present utility model is used for explaining this utility model, is not intended that of the present utility model improper
Limit.In the accompanying drawings:
Fig. 1 is the structural representation of a kind of traditional EMC scramble testing system according to prior art；
Fig. 2 is the structural representation of a kind of scramble testing system according to this utility model embodiment；
Fig. 3 is according to a kind of spuious test system optionally with the conduction stray in test card reader of the present utility model
System；
Fig. 4 is according to a kind of spuious test system optionally with the conduction stray in test label plate of the present utility model
System；
Fig. 5 is according to one of the present utility model optional calibration arrangements figure；
Fig. 6 is the structure according to a kind of scramble testing system being optionally applied to RFID test equipment of the present utility model
Schematic diagram.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that this utility model scheme, real below in conjunction with this utility model
Execute the accompanying drawing in example, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described
Embodiment is only the embodiment of this utility model part rather than whole embodiments.Based on the reality in this utility model
Execute example, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, all answer
When the scope belonging to this utility model protection.
It should be noted that term " first " in specification and claims of the present utility model and above-mentioned accompanying drawing,
" second " etc. are for distinguishing similar object, without being used for describing specific order or precedence.Should be appreciated that so
The data used can be exchanged in the appropriate case, in order to embodiment of the present utility model described herein can be with except at this
In illustrate or describe those beyond order implement.Additionally, term " includes " and " having " and their any deformation, meaning
Figure is to cover non-exclusive comprising, and such as, contains series of steps or the process of unit, method, system, product or equipment
Be not necessarily limited to those steps or the unit clearly listed, but can include the most clearly listing or for these processes,
Other step that method, product or equipment are intrinsic or unit.
Fig. 2 is the structural representation of a kind of scramble testing system according to this utility model embodiment, as in figure 2 it is shown, should
System includes:
Protocol analyzer 20, is connected with equipment under test 22, is used for encouraging equipment under test, makes equipment under test work in and presets frequency
Point.
Concrete, above-mentioned Devices to test can be card reader or the label of application RFID technique, and above-mentioned working frequency points is upper
Stating the working frequency points of card reader or label, can be 900M, 2.45G etc., above-mentioned protocol analyzer can be open, controlled, collection
Application function and test function, in the test protocol analyzer of one, can realize conducting interviews RFID label tag, read, write
Deng operation；The interfaces such as the open RFID protocol parameter of this protocol analyzer, non-protocol parameter, instruction control, provide the user physics
Layer and the editing process of protocol layer, can easily realize generation and the communication process of any protocol signal；This protocol analyzer has
Having card reader emulation and the dual mode capability of tag emulation, by protocol analyzer, user can study RFID physical layer, protocol layer
Concrete interaction with the data of application layer.
Filter cell group 24, is connected with wireless radio interface case, when being used for suppressing equipment under test to work in default frequency
The amplitude of produced signal.
Concrete, it is same that above-mentioned filter cell group includes that multiple carrier wave suppression module, multiple carrier wave suppression modules are arranged on
In one cabinet, constitute a filter cell group, it is possible to realize the automatic switchover of the wireless filter paths of unlimited bandwidth.
Herein it should be noted that owing to equipment under test has different working frequency points, so arranging filter cell group,
The equipment under test working in different frequent points is measured.
Herein also, it should be noted filter cell group can be configured according to the working frequency points of equipment under test,
Reach to be specifically designed for the technique effect that equipment under test is filtered.
Use filter cell group suppression signal amplitude, play the technique effect of other equipment in protection test system.
Audiofrequency spectrometer 26, is connected with wireless radio interface case, is used for measuring equipment under test and works in produced by default frequency
Signal.
Concrete, above-mentioned audiofrequency spectrometer can be connected with wireless radio interface case by radio-frequency cable.
Wireless radio interface case 28, is connected with protocol analyzer, filter cell group and audiofrequency spectrometer respectively, is used for carrying out
Radio-frequency path switches, and wherein, radio-frequency path includes: Radiated Spurious Emissions path, conduction stray transmission path and wave filter list
Tuple path.
Concrete, above-mentioned wireless radio interface case Main Function is that by the automatic switchover of multiple radio-frequency path, its
Include that Wireless Telecom Equipment Radiated Spurious Emissions (RSE) path, Wireless Telecom Equipment conduction stray launch (CSE) path, filter
The automatic switchover of ripple device unit group (if not cascading with from radiofrequency signal processing unit).
Herein it should be noted that above-mentioned wireless radio interface case is not limited to carry out any one path above-mentioned switching, example
As, in the case of including radio communication comprehensive test instrument in systems, above-mentioned wireless radio interface case also is able to carry out radio communication survey
The path switching in examination instrument path.
In a kind of optional embodiment, said system can be the system of the conduction stray individually testing equipment under test,
In the case of equipment under test is card reader, system construction drawing example as shown in Figure 3, conduction stray test system is divided by agreement
Analyzer, card reader, wave filter, audiofrequency spectrometer and control computer composition, wherein, protocol analyzer and card reader are all by netting twine and control
Computer processed is connected, so that computer can control read write line and protocol analyzer sends the protocol instructions specified, passes owing to using
The part to be measured leading scramble testing system has external antenna port, therefore need not mast and turntable carries out multiangular measurement.
In the case of equipment under test is tag board, system construction drawing example as shown in Figure 4, conduction stray test system is divided by agreement
Analyzer, tag board, wave filter, audiofrequency spectrometer and control computer composition, wherein, protocol analyzer is connected with computer by netting twine, with
Make computer can encourage tag board by control protocol analyser, obtain the anti-of tag board by protocol analyzer and audiofrequency spectrometer simultaneously
To signal, complete test.Owing to using the part to be measured of conduction stray test system to have external antenna port, therefore need not sky
Transmission tower and turntable carry out multiangular measurement.
In an alternative embodiment, said system can also is that the system of the individually radiation dispersion that test is tested,
System construction drawing example as shown in Figure 6.
In another optional embodiment, said system can also is that can either measure conduction stray, can measure again
The system of radiation dispersion, in the example present, can carry out the switching of test approaches by wireless radio interface case.
In a kind of optional embodiment, above-mentioned scramble testing system can be for hyper band RFID card reader or label
Spuious test, utilize UHF (ultra high frequency, superfrequency radio wave) protocol analyzer to control to be tested to set
Standby self-energizing full-automatic test system, Test coverage supports the intermediate channels of UHF 840-845 frequency range, support comprehensively
The intermediate channels of UHF920-925 frequency range, supports 2.45G intermediate channels, it is contemplated that card reader has external antenna and integration sky
Line, therefore uses different test modes for different types of card reader, and the former uses conduction stray to test system, and the latter adopts
With using radiation dispersion test system, label uses radiation dispersion test.
The test object of native system can be RFID label tag or card reader, establishing criteria: 840MHz～845MHz or
The air interface compliance test of the card reader of 920MHz～925MHz, performs according to the relevant regulations of GJB7378.1-2011,
Spuious test frequency range: 30MHz-12.75MHz, 800/900MH operating frequency is 840～845MHz and 920～925MHz,
Carrier channel bandwidth 250kHz.High, medium and low three carrier frequency points can be chosen in the 840 and 920 each frequency ranges of standard to survey
Amount, supports the spuious measurement of 2.45GHz simultaneously, and 2.45G uses center frequency point to measure, specific as follows:
(1), in the case of the working frequency range at equipment under test is 840～845MHz, central task frequency is 842.625MHz
(carrier channel bandwidth: 250kHz)
(2), in the case of the working frequency range at equipment under test is 920～925MHz, central task frequency is 922.625MHz
(carrier channel bandwidth: 250kHz)
(2), in the case of the working frequency range at equipment under test is 2.45G, central task frequency is 2440MHz (carrier channel
Bandwidth: 12.5MHz)
Herein it should be noted that in the case of equipment under test is RFID device, the spuious test of RFID device is permissible
It is divided into radiation dispersion and conduction stray, but no matter carries out radiation dispersion test or pass to spuious test, above-mentioned be applied to RFID
Scramble testing system all include the said equipment, when carrying out radiation dispersion test and passing to spuious, the difference of system is respectively
The communication mode of individual equipment, system receives the mode etc. of the signal that equipment under test sends, but its test philosophy is all, uses association
View analyser excitation equipment under test works in default frequency, uses filter cell group to press down the working signal of equipment under test
System, the signal after then using audiofrequency spectrometer to measure after filtering.
Herein also, it should be noted above-mentioned scramble testing system can be exclusively used in the spuious test of RFID device, but not
It is limited to the spuious test to RFID device, needs manually to arrange to make equipment under test work in the equipment of default frequency, all can lead to
Cross above-mentioned scramble testing system, by using the excitation of protocol analyzer, reach autoexcitation and control the most spuious of function
The technique effect of test.
From the foregoing, it will be observed that the scheme that the above embodiments of the present application provide is by using protocol analyzer to swash equipment under test
Encourage so that it is work in appointment frequency, and use the wave filter being arranged at operating frequency corresponding to equipment under test assigned work frequency,
Solve in prior art, by user, product is carried out manual configuration, make equipment under test work in fixing frequency, cause test
Inefficient technical problem, it is proposed that be specifically designed for specifying the scramble testing system of equipment under test, thus reached to improve test
The technique effect of efficiency, it is achieved that the autoexcitation of equipment under test controls the technical purpose of the full-automatic spuious test of function.
Optionally, according to the above embodiments of the present application, said system also includes:
Control station, is connected with protocol analyzer respectively, encourages equipment under test for control protocol analyser.
Control station is also connected with wireless radio interface case, is used for controlling wireless radio interface case and carries out path switching.
Control station is also connected with filter cell group, adjusts filter cell group for the working frequency points according to equipment under test
Switch to the filtering channel corresponding with working frequency points.
Control station is also connected with audiofrequency spectrometer, the signal detected for analysis spectrum instrument, obtains the test knot of spuious test
Really.
Fig. 3 is according to a kind of spuious test system optionally with the conduction stray in test card reader of the present utility model
System, in a kind of optional embodiment, in conjunction with the example shown in Fig. 3, conduction stray test system is by protocol analyzer, Card Reader
Device, wave filter, audiofrequency spectrometer and computer composition, wherein, protocol analyzer is all connected with controlling computer by netting twine with card reader, with
Make computer can control read write line and protocol analyzer sends the protocol instructions specified, owing to using conduction stray test system
Part to be measured there is external antenna port, therefore need not mast and turntable carry out multiangular measurement.
Fig. 4 is according to a kind of spuious test system optionally with the conduction stray in test label plate of the present utility model
System, in an alternative embodiment, in conjunction with the example shown in Fig. 4, conduction stray test system is by protocol analyzer, label
Plate, wave filter, audiofrequency spectrometer and computer composition, wherein, protocol analyzer is connected with computer, so that computer can be controlled by netting twine
Protocol analyzer processed excitation tag board, obtains the reverse signal of tag board by protocol analyzer and audiofrequency spectrometer simultaneously, completes to survey
Examination.Owing to using the part to be measured of conduction stray test system to have external antenna port, therefore need not mast and turntable enters
Row multiangular measurement.
System calibration: open RE software (radiation emission test system), and click through calibration, starts calibration；
System test: carry out test according to Fig. 5 and arrange, and click through test, fills in measurement parameter or selects test
Template, selects calibration file, starts test.
Spuious measurement illustrates:
Ps, f=Pr, f+kms, f Gf+20lgf+20lgd 27.6
Illustrate: 1. this formula is only applicable to free space (fully anechoic chamber) measurement environment.
2. Ps, f are the stray power (e.i.r.p, dBm) of equipment under test actual transmission in frequency f.
3. Pr, f are the scattering transmission power (dBm) that receiver/audiofrequency spectrometer is read in frequency f.
4. kms, f are measurement system calibration factor in frequency f, i.e. from antenna output end mouth to receiver/audiofrequency spectrometer
Path loss (dB) between input port.
5. Gf is to measure reception antenna gain (dBi) in frequency f.
6. f is the frequency (MHz) of spurious emissions.
7. d is to measure the distance between reception antenna and EUT transmitting antenna.
If measured in open area test site (semi-anechoic chamber), the reflection gain of ground connection flat board to be considered, above-mentioned formula is just
Become:
Ps, f=Pr, f+kms, f Gf+20lgf+20lgd 27.6 Gr
Wherein, Gr is the reflection gain (dB) of semi-anechoic chamber ground connection flat board.
For low-gain antenna, between its gain G f and antenna factor AF, there is a reduction formula, it may be assumed that
Gf=20lgf-29.78-AF
Illustrate: 1. Gf is antenna gain (dBi).
2. f is frequency (MHz).
3. AF is antenna factor (dB/m).
To sum up, existing " direct method " for fully anechoic chamber of measuring method have again for semi-anechoic chamber " directly
Method ", the formula simply used is different.
Herein it should be noted that antenna gain Gf and ground connection flat reflective gain G r all allow measurement front by the most defeated
Enter.
Optionally, according to the above embodiments of the present application, said system also includes: electromagnetic shielding chamber, is arranged at protocal analysis
Outside instrument, equipment under test, wave filter, audiofrequency spectrometer and control station, for the conduction stray offer test for measuring equipment under test
Environment.
Optionally, according to the above embodiments of the present application, system also includes:
Wireless radio interface case, is connected with protocol analyzer, filter cell group and audiofrequency spectrometer respectively, is used for carrying out road
Footpath switches.
Conduction and the switching of radiation, manually control wireless radio interface case and do path switching, radiate and conduct
Switching, radiation dispersion test RFID part to be measured (EUT) measures in darkroom, conduction stray test RFID part to be measured need not secretly
Room environmental.Devices to test is arranged under assigned work state by protocol analyzer excitation, and its signal is conveyed into through holding wire
Radio frequency interface case, then carry out signal filtration through path integration to assigned work bank of filters, then input a signal into audiofrequency spectrometer
In carry out signal analysis.
Optionally, according to the above embodiments of the present application, system also includes:
Signal source, is connected with wireless radio interface case, for replacing equipment under test to launch signal when carrying out path alignment.
Owing to measuring route has attenuation to signal, therefore before spuious measurement, it is necessary to carry out path alignment, meter
Calculate the loss of corresponding measuring route.
Arranged firstly the need of calibration before carrying out path alignment.
Calibration is arranged: alignment path is from the beginning of antenna output end, afterwards through radio-frequency cable, interface box, wave filter case,
Finally arrive the input port of audiofrequency spectrometer；Signal source substitutes equipment under test and launches signal.
Fig. 4 is according to one of the present utility model optional calibration arrangements figure, and shown in Fig. 4, path alignment needs such as
Lower step:
A. the measuring route needing calibration originates in antenna output end D, by antenna cable to terrestrial interface plate adaptor
C, then by C by the pre-buried cable in darkroom to barrier shield interface board adaptor B, then passed through cable by B in that one end of control room
It is connected to radio frequency case input port T3, the path switching in radio frequency case, the input of audiofrequency spectrometer is finally arrived by T3.
B. owing to the measuring instruments such as signal source are all in control room, in order to calibration signal signal source exported is from antenna electric
The D point input of cable, it would be desirable to do some accommodations, will screw out from antenna output end by antenna cable, in turn is connected to barrier shield
Interface board adaptor A (assuming that antenna cable has enough length).It is defeated that signal source arrives radio frequency case after radio frequency case T1 mouth inputs
Outlet T2, couples together T2 and interface board adaptor A in that one end of control room with a coaxial cable.It is defeated that signal source is set
Going out power level (dBm value), start-stop frequency and the frequency step of signal, frequency ground reads the numerical value (dBm that audiofrequency spectrometer records one by one
Value), result is preserved.
C. the connection cable between T2 and A is screwed out from A, in turn be connected on the input T4 of audiofrequency spectrometer.By signal source
Parameter be arranged to above-mentioned steps b just the same, frequency ground reads the numerical value (dBm value) that audiofrequency spectrometer records, general one by one
Result preserves.
D. being subtracted each other with preservation reading in step b by the reading frequency one by one preserved in step c, difference is selected measurement
The path loss (positive dB value) in path, preserves result.
The path loss obtained after it is pointed out that path alignment contains caused by the trueness error of audiofrequency spectrometer
Error, therefore when reality is measured, the audiofrequency spectrometer that used when audiofrequency spectrometer needs to use calibration, can be only achieved elimination audiofrequency spectrometer
The technique effect of trueness error.
Optionally, according to the above embodiments of the present application, system also includes:
Measure reception antenna, be connected with amplifier, be used for receiving equipment under test and work in signal produced by default frequency.
Amplifier, is connected to measure between reception antenna and wireless radio interface case, is used for amplifying equipment under test and works in
Preset signal produced by frequency.
Optionally, according to the above embodiments of the present application, system also includes:
Turntable, is used for placing equipment under test and rotating.
Mast, are connected with measuring reception antenna, for adjusting the height measuring reception antenna.
By using turntable and mast, test process completes the rotation of turntable and the lifting of mast so that
Equipment under test can be measured at the signal that all angles are launched, and has reached the technique effect of the degree of accuracy improving test.
Optionally, according to the above embodiments of the present application, system also includes:
Anechoic chamber, is arranged at equipment under test, measures outside reception antenna and amplifier, for for measuring equipment under test
Radiation dispersion provide test environment.
Herein it should be noted that in the case of equipment under test is RFID device, RFID device is carried out conduction stray
Dark room conditions is need not during test.
Optionally, according to the above embodiments of the present application, control station is also connected with mast and turntable, is used for controlling mast
Lifting and the rotation of turntable.
Optionally, according to the above embodiments of the present application, the center frequency point of filter cell group be following any one:
842.625MHz, 922.625MHz and 2440MHz.
About the band stray measurement for carrying out performance evaluation, system default uses central channel to enter under each frequency range
Row is measured, it is possible to specify frequency to be adjusted according to user.Owing to RFID test equipment maximum transmission power is 33dBm, for protecting
Protect audiofrequency spectrometer non-overloading or distortion, need to configure exclusive RFID filter cell group and carry out signal suppression.
Wave filter can be designed as follows:
In the case of the working band of equipment under test is 840～845MHz, center frequency point is 842.625MHz, its carrier wave
Channel width: 250kHz, suppressing bandwidth: 400kHz, frequency scalable.
In the case of the working band of equipment under test is 920～925MHz, center frequency point is 922.625MHz, its carrier wave
Channel width: 250kHz, suppressing bandwidth: 400kHz, frequency scalable.
In the case of the working band of equipment under test is 2.45G, center frequency point is 2440MHz, its carrier channel bandwidth:
5MHz, suppressing bandwidth: 5MHz.
Can be switched by the path of software control radio frequency interface case and wave filter case, Spectrometry analysis spurious signal, real
The full-automatic test system of the spuious test switching of existing 2.45G Yu UHF.
Systems soft ware can customize and arrange RFID exclusive limit value requirement, and systems soft ware default configuration RFID dedicated bandwidth
Arrange and exempt from frequency measurement section, user operation can be reduced.
Optionally, according to the above embodiments of the present application, protocol analyzer is UHF protocol analyzer.
Fig. 6 is the structure according to a kind of scramble testing system being optionally applied to RFID test equipment of the present utility model
Schematic diagram, this radiation-emitting RFID scramble testing system is for measuring the spurious emissions signal magnitude of cabinet port, by part to be measured
(RFID label tag or card reader), antenna, mast, turntable, wave filter case, put in advance, wireless radio interface case, audiofrequency spectrometer and control
Platform forms, and when carrying out radiation dispersion test, signal source is used for carrying out path alignment, and audiofrequency spectrometer is used for measuring frequency-region signal, filter
Ripple device unit group is for suppressing the amplitude of working signal, and protocol analyzer is used for encouraging equipment under test, makes equipment under test work in
Specifying frequency, wireless radio interface case is for carrying out path switching during path alignment and test, and mast are used for
Lifting in test process, turntable is for rotating in test process.Below in conjunction with the scramble testing system shown in Fig. 6, for upper
The Path Logical stating the scramble testing system that embodiment provides is described in detail.
First, protocol analyzer and card reader to be measured or label are set up and are communicated, and make label or card reader control specifying
Working frequency points, under maximum emission state, arranges protocol analyzer and is in Reader (reading) pattern, and arrange protocol analyzer
Operating frequency and launch power, Sort Inventory (taking inventory) proceed-to-send signal, its signal through space radiation transmit
Received by reception antenna, be directly connected to card reader, make card reader be in mode of operation.Then, signal connects through less radio-frequency
Mouth case path integration carries out signal filtration to assigned work filter cell group group.Finally, then input a signal into audiofrequency spectrometer and enter
Row signal measurement is analyzed, and test result is presented by controlling computer software.
Above-mentioned this utility model embodiment sequence number, just to describing, does not represent the quality of embodiment.
In above-described embodiment of the present utility model, the description to each embodiment all emphasizes particularly on different fields, in certain embodiment
There is no the part described in detail, may refer to the associated description of other embodiments.
Below it is only preferred implementation of the present utility model, it is noted that for the ordinary skill people of the art
For Yuan, on the premise of without departing from this utility model principle, it is also possible to make some improvements and modifications, these improvements and modifications
Also should be regarded as protection domain of the present utility model.
Claims (10)
1. a scramble testing system, it is characterised in that including:
Protocol analyzer, is connected with equipment under test, is used for encouraging equipment under test, makes described equipment under test work in default frequency,
And make described equipment under test work in maximum transmission power state；
Filter cell group, is connected with wireless radio interface case, is used for suppressing described equipment under test to work in default frequency time institute
The amplitude of the signal produced；
Audiofrequency spectrometer, is connected with described wireless radio interface case, is used for measuring described equipment under test and works in default frequency and produced
Signal；
Described wireless radio interface case, is connected with described equipment under test, described filter cell group and described audiofrequency spectrometer respectively,
For carrying out radio-frequency path switching, wherein, described radio-frequency path includes: Radiated Spurious Emissions path, conduction stray transmission path
And described filter cell group path.
System the most according to claim 1, it is characterised in that system also includes:
Control station, is connected with described protocol analyzer respectively, is used for controlling described protocol analyzer and encourages described equipment under test；
Described control station is also connected with described wireless radio interface case, is used for controlling described wireless radio interface case and carries out path and cut
Change；
Described control station is also connected with described filter cell group, adjusts described for the working frequency points according to described equipment under test
Filter cell group switches to the filtering channel corresponding with described working frequency points；
Described control station is also connected with described audiofrequency spectrometer, for analyzing the signal that described audiofrequency spectrometer detects, obtains spuious test
Test result.
System the most according to claim 2, it is characterised in that system also includes:
Electromagnetic shielding chamber, is arranged at described protocol analyzer, described equipment under test, described wave filter, described audiofrequency spectrometer and institute
State outside control station, for the conduction stray offer test environment for measuring described equipment under test.
System the most according to claim 3, it is characterised in that system also includes:
Signal source, is connected with described wireless radio interface case, for replacing described equipment under test to launch when carrying out path alignment
Signal.
System the most according to claim 4, it is characterised in that system also includes:
Measure reception antenna, be connected with amplifier, be used for receiving described equipment under test and work in signal produced by default frequency；
Amplifier, is connected to measure between reception antenna and wireless radio interface case, is used for amplifying described equipment under test and works in
Preset signal produced by frequency.
System the most according to claim 5, it is characterised in that system also includes:
Turntable, is used for placing described equipment under test and rotating；
Mast, are connected with described measurement reception antenna, for adjusting the height of described measurement reception antenna.
System the most according to claim 6, it is characterised in that system also includes:
Anechoic chamber, is arranged at outside described equipment under test, described measurement reception antenna and described amplifier, for for measuring
The radiation dispersion of described equipment under test provides test environment.
System the most according to claim 7, it is characterised in that described control station also with described mast and described turntable phase
Even, for controlling lifting and the rotation of described turntable of described mast.
System the most according to claim 1, it is characterised in that the center frequency point of described filter cell group is following any
A kind of: 842.625MHz, 922.625MHz and 2440MHz.
System the most according to claim 1, it is characterised in that described protocol analyzer is UHF or 2.4G protocal analysis
Instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620633442.4U CN205864433U (en) | 2016-06-23 | 2016-06-23 | Scramble testing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620633442.4U CN205864433U (en) | 2016-06-23 | 2016-06-23 | Scramble testing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205864433U true CN205864433U (en) | 2017-01-04 |
Family
ID=57636077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620633442.4U Active CN205864433U (en) | 2016-06-23 | 2016-06-23 | Scramble testing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205864433U (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107994962A (en) * | 2017-10-09 | 2018-05-04 | 捷开通讯(深圳)有限公司 | Test terminal and its radio frequency test method, the device with store function |
| CN108366161A (en) * | 2018-02-09 | 2018-08-03 | 广东欧珀移动通信有限公司 | The test method and device of radiation dispersion, electronic device and readable storage medium storing program for executing |
| CN108512613A (en) * | 2018-04-04 | 2018-09-07 | Oppo广东移动通信有限公司 | Radiation dispersion test method, device, storage medium and test system |
| CN108776272A (en) * | 2018-05-28 | 2018-11-09 | 煤炭科学技术研究院有限公司 | A kind of test system of frequency conversion equipment Electro Magnetic Compatibility |
| CN109787684A (en) * | 2019-03-22 | 2019-05-21 | 太仓市同维电子有限公司 | A kind of system for testing the ONU radiation-emitting with multiple ethernet ports |
| CN110601773A (en) * | 2019-09-02 | 2019-12-20 | Oppo（重庆）智能科技有限公司 | Radiation stray test method and device and test system |
| CN110730045A (en) * | 2019-10-10 | 2020-01-24 | 国家无线电监测中心检测中心 | Out-of-band useless emission index over-the-air OTA performance test system of wireless equipment |
| CN111010242A (en) * | 2019-11-26 | 2020-04-14 | 深圳市巴伦技术股份有限公司 | Radiation stray test equipment and system and radiation stray test method |
| EP3705898A1 (en) * | 2019-03-07 | 2020-09-09 | Rohde & Schwarz GmbH & Co. KG | Measurement system for testing a system under test as well as measurement setup |
| CN111698701A (en) * | 2019-12-10 | 2020-09-22 | 芯讯通无线科技（上海）有限公司 | Automatic spurious emission testing method, system, equipment and medium for wireless communication module |
| CN113242098A (en) * | 2020-01-22 | 2021-08-10 | 南京捷希科技有限公司 | Radio frequency performance test system and method |
| TWI747471B (en) * | 2020-09-03 | 2021-11-21 | 耕興股份有限公司 | High-speed stray radiation automatic test system and method |
| CN111698701B (en) * | 2019-12-10 | 2024-04-30 | 芯讯通无线科技（上海）有限公司 | Automatic stray test method, system, equipment and medium for wireless communication module |
-
2016
- 2016-06-23 CN CN201620633442.4U patent/CN205864433U/en active Active
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107994962A (en) * | 2017-10-09 | 2018-05-04 | 捷开通讯(深圳)有限公司 | Test terminal and its radio frequency test method, the device with store function |
| CN107994962B (en) * | 2017-10-09 | 2021-09-14 | 捷开通讯(深圳)有限公司 | Test terminal, radio frequency test method thereof and device with storage function |
| CN108366161A (en) * | 2018-02-09 | 2018-08-03 | 广东欧珀移动通信有限公司 | The test method and device of radiation dispersion, electronic device and readable storage medium storing program for executing |
| CN108512613A (en) * | 2018-04-04 | 2018-09-07 | Oppo广东移动通信有限公司 | Radiation dispersion test method, device, storage medium and test system |
| CN108776272A (en) * | 2018-05-28 | 2018-11-09 | 煤炭科学技术研究院有限公司 | A kind of test system of frequency conversion equipment Electro Magnetic Compatibility |
| EP3705898A1 (en) * | 2019-03-07 | 2020-09-09 | Rohde & Schwarz GmbH & Co. KG | Measurement system for testing a system under test as well as measurement setup |
| CN109787684A (en) * | 2019-03-22 | 2019-05-21 | 太仓市同维电子有限公司 | A kind of system for testing the ONU radiation-emitting with multiple ethernet ports |
| CN110601773A (en) * | 2019-09-02 | 2019-12-20 | Oppo（重庆）智能科技有限公司 | Radiation stray test method and device and test system |
| CN110601773B (en) * | 2019-09-02 | 2022-06-14 | Oppo（重庆）智能科技有限公司 | Radiation stray test method and device and test system |
| CN110730045A (en) * | 2019-10-10 | 2020-01-24 | 国家无线电监测中心检测中心 | Out-of-band useless emission index over-the-air OTA performance test system of wireless equipment |
| CN111010242A (en) * | 2019-11-26 | 2020-04-14 | 深圳市巴伦技术股份有限公司 | Radiation stray test equipment and system and radiation stray test method |
| CN111010242B (en) * | 2019-11-26 | 2022-03-11 | 深圳市钛和巴伦技术股份有限公司 | Radiation stray test equipment and system and radiation stray test method |
| CN111698701A (en) * | 2019-12-10 | 2020-09-22 | 芯讯通无线科技（上海）有限公司 | Automatic spurious emission testing method, system, equipment and medium for wireless communication module |
| CN111698701B (en) * | 2019-12-10 | 2024-04-30 | 芯讯通无线科技（上海）有限公司 | Automatic stray test method, system, equipment and medium for wireless communication module |
| CN113242098A (en) * | 2020-01-22 | 2021-08-10 | 南京捷希科技有限公司 | Radio frequency performance test system and method |
| CN113242098B (en) * | 2020-01-22 | 2024-03-15 | 南京捷希科技股份有限公司 | Radio frequency performance test system and method |
| TWI747471B (en) * | 2020-09-03 | 2021-11-21 | 耕興股份有限公司 | High-speed stray radiation automatic test system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205864433U (en) | Scramble testing system | |
| CN112506724B (en) | Chip testing method and device and computer readable storage medium | |
| CN201340445Y (en) | Automatic testing system for electronic products | |
| CN112202512B (en) | Wireless signal strength detection method and device | |
| CN109709474A (en) | A kind of radio frequency mixed signal integrated circuit test system and test method | |
| CN106027170A (en) | Digital miniature channel equipment automatic test device and system | |
| CN102207545A (en) | Automatic testing method and system for transmission characteristic of microwave/millimeter wave vector modulator | |
| CN110601773B (en) | Radiation stray test method and device and test system | |
| CN106095705A (en) | A kind of apparatus and method realizing signal/spectrum analyzer ultra broadband spread spectrum | |
| CN104519503A (en) | Radio frequency link switching device for mobile communication terminal testing | |
| CN110609183A (en) | IVI technology-based identification module and automatic test system of complete machine | |
| CN105141378B (en) | A kind of special transformer terminals wireless public network communication test system and method | |
| CN206432996U (en) | Radio-frequency performance of wireless terminal test system | |
| CN107359944B (en) | Bluetooth equipment radio frequency test system | |
| CN102868464A (en) | Consistency testing system and method of communication terminals | |
| CN103532601B (en) | The interference detection method of multi-antenna TDD system and device | |
| CN107395296A (en) | A kind of short-wave receiver antenna-feedback system intellectual monitoring module and monitoring method | |
| CN205484818U (en) | Detection apparatus for big dipper satellite receiving and dispatching radio frequency | |
| CN110221261A (en) | A kind of radar waveform generation module method for testing and analyzing and device | |
| CN113343621A (en) | Automatic test system of short wave comprehensive digital platform | |
| CN105721068A (en) | Method and system for detecting wireless public network communication interference of collection terminal | |
| CN106546856A (en) | A kind of wave filter integrated test system | |
| CN105425060B (en) | A kind of interference detection method and detecting system of antenna coupling | |
| CN205179373U (en) | A intermodulation test system that is used for POI's multifrequency section to stride standard | |
| CN208739123U (en) | Device built in self testing system is selected in a kind of shortwave prognosis |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |