CN110365424A - A kind of automatic test device and method of audio frequency apparatus anti-interference ability - Google Patents
A kind of automatic test device and method of audio frequency apparatus anti-interference ability Download PDFInfo
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- CN110365424A CN110365424A CN201910712782.4A CN201910712782A CN110365424A CN 110365424 A CN110365424 A CN 110365424A CN 201910712782 A CN201910712782 A CN 201910712782A CN 110365424 A CN110365424 A CN 110365424A
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- 238000012360 testing method Methods 0.000 title claims abstract description 160
- 238000000034 method Methods 0.000 title abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 238000004891 communication Methods 0.000 claims description 22
- 230000005540 biological transmission Effects 0.000 claims description 8
- 210000005069 ears Anatomy 0.000 claims description 4
- 238000012546 transfer Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000012544 monitoring process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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- 238000012790 confirmation Methods 0.000 description 1
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- 230000001915 proofreading effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/0082—Monitoring; Testing using service channels; using auxiliary channels
- H04B17/0085—Monitoring; Testing using service channels; using auxiliary channels using test signal generators
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/15—Performance testing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/29—Performance testing
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
The present invention relates to anti-interference the field of test technology, in particular to a kind of automatic test device and method of audio frequency apparatus anti-interference ability, the inside quadrangle of radio-frequency shield room is respectively arranged with interference signal source, middle part is provided with test station mechanism, radio shielding outdoor is provided with control and test macro, radio-frequency shield room is provided with switching device on one side, control and test macro and test station mechanism pass through cable respectively and are connected to switching device, realize control and the connection between test macro and test station mechanism, control and test macro include jamming decision and audio test system, jamming decision is connected with audio test system.Compared with prior art, it not will receive extraneous disorder when automatic test device and the method test of audio frequency apparatus anti-interference ability of the invention and uncontrollable electromagnetic environment interfered, greatly improve the accuracy and consistency of test result, test result not will receive the subjective impact of people, and objectivity is strong.
Description
[technical field]
The present invention relates to anti-interference the field of test technology, in particular to the automation of a kind of audio frequency apparatus anti-interference ability is surveyed
Try device and method.
[background technique]
Universal with intelligent wearable device, more and more wearable devices all have the function of wireless communication, can be with
Say the experience sense that the quality of wireless communication function is directly related to user to product, and among this, have wireless communication function
Audio wearable device be especially apparent.And the wireless communication function of product is promoted, on the one hand need entire radio frequency system and antenna
System carries out optimal design；Still further aspect, again when external interference occurs, can be effectively reduced this interference for
The influence of user experience.The former in industry has been provided with mature objective examination method, and for the latter, it is most at present
Producer in the test of user experience this respect is completed by artificial subjective testing, and not only testing efficiency is low, and in standard
Also there is very big deficiency in terms of true property, the uncertainty of test result is higher.
[summary of the invention]
In order to overcome the above problem, the present invention proposes a kind of audio frequency apparatus anti-interference ability that can effectively solve the above problems
Automatic test device and method.
The present invention solves a kind of technical solution that above-mentioned technical problem provides: providing a kind of audio frequency apparatus anti-interference ability
Automatic test device and method, including radio-frequency shield room, the radio shielding chamber interior form the test space, radio shielding
The inside quadrangle of room is respectively arranged with interference signal source, and middle part is provided with test station mechanism, and the radio shielding outdoor is set
It is equipped with control and test macro, radio-frequency shield room is provided with switching device, control and test macro and test station machine on one side
Structure passes through cable respectively and is connected to switching device, realizes control and the connection between test macro and test station mechanism, described
Control and test macro include jamming decision and audio test system, and jamming decision is connected with audio test system
It connects.
Preferably, the switching device includes network filter and cable switching plate, jamming decision and network filtering
Device passes through cable respectively and is connected to interchanger, and audio test system is connected to cable switching plate by cable.
Preferably, the test station mechanism is connected to cable switching plate by cable, realizes and audio test system
Connection.
Preferably, the interference signal source is connected to network filter by cable, realizes the company with jamming decision
It connects.
Preferably, the test station mechanism includes a turntable, and turntable is driven by stepper motor and rotated, and stepper motor is logical
It crosses cable and is connected to cable switching plate, and then connect with audio test system, audio test system controls turntable rotation.
Preferably, several artitificial ears are set on the turntable, and artitificial ear is connected to cable switching plate, Jin Eryu by cable
Audio test system connection.
Preferably, it is additionally provided with communication adapter in the radio shielding room, communication adapter is connected to line by cable
Cable pinboard, and then connect with audio test system.
Preferably, the jamming decision includes a master control PC, is provided with control module in master control PC, control module is set
It sets parameter and sends the corresponding interference signal of instruction generation to interference signal source.
Preferably, the automated testing method of a kind of audio frequency apparatus anti-interference ability, which is characterized in that including as follows
Step:
Step S1 before test, sets the rotation time slot for rotating stepping, turntable 41 of need frequency range to be tested, turntable 41
And the specification of circle number, swept-frequency signal and each group interference signal；
Step S2 connects part to be measured and artitificial ear 42, and has configured wireless connection with communication adapter 43；
Step S3, audio test system transmission start test instruction to jamming decision, and jamming decision is controlled respectively
Subordinate's interference signal source 20 processed sends controllable interference signal according to the interference signal specification of setting, and audio test system is sent out simultaneously
It send instruction to turntable 41, is rotated 360 ° according to the rotation stepping and rotation time slot of setting；
Step S4, artitificial ear 42 are monitored and acquire the audio-frequency test under each angle as a result, feeding back to audio test system
It is recorded；
Step S5, after the completion of one group of test, audio test system is assigned second group of specification interference signal of beginning automatically and is surveyed
The instruction of examination is tested by step 3, the circulation of step 4, to jamming decision until completing all set tests again
Content.
Step S6 after the completion of test, can transfer test result record file from audio test system.
Compared with prior art, the automatic test device of audio frequency apparatus anti-interference ability of the invention and method by pair
The interference signal of interference signal source controls, and on the working frequency range of needs, selects different interference signal source quantity, and needle
The parameters such as different transmission powers, transmission time slot and emission duration are customized to each interference signal source, release specification can
The interference signal of control recycles audio test system, turntable, communication adapter and artitificial ear by the monitoring to part to be measured,
The part to be measured recorded under different size interference signal tests performance, and generates the objective test report of result, for staff into
Row is consulted, analyzes and is achieved；
Have the advantages that 1, due to completing in radio shielding room, when test not will receive disorder and uncontrollable
Electromagnetic environment interference, greatly improve the accuracy and consistency of test result；2, it is monitored by artitificial ear instead of true man
Ear, test result not will receive the subjective impact of people, more have objectivity；3, test process is not necessarily to human attendance, automatically
Data are completed and record, it is more intelligent, it can greatly promote testing efficiency.
[Detailed description of the invention]
Fig. 1 is a kind of structural schematic diagram of the automatic test device of audio frequency apparatus anti-interference ability of the present invention；
Fig. 2 is a kind of structural block diagram of the automatic test device of audio frequency apparatus anti-interference ability of the present invention；
Fig. 3 is a kind of work flow diagram of the automatic test device of audio frequency apparatus anti-interference ability of the present invention；
Fig. 4 is a kind of interference signal source structural frames of the automatic test device of audio frequency apparatus anti-interference ability of the present invention
Figure.
[specific embodiment]
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing and embodiment,
The present invention will be described in further detail.It should be appreciated that described herein, the specific embodiments are only for explaining the present invention, and
It is not used in the restriction present invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute only limits in the embodiment of the present invention
In the relative position in given view, rather than absolute position.
In addition, the description for being such as related to " first ", " second " in the present invention is used for description purposes only, and should not be understood as
Its relative importance of indication or suggestion or the quantity for implicitly indicating indicated technical characteristic.Define as a result, " first ",
The feature of " second " can explicitly or implicitly include at least one of the features.In the description of the present invention, " multiple " contain
Justice is at least two, such as two, three etc., unless otherwise specifically defined.
The automatic test device of a kind of audio frequency apparatus anti-interference ability of the invention referring to FIG. 1 to FIG. 4, including penetrate
Frequency screened room 10, radio-frequency shield room 10 are test environment of the internal invention without external interference for completely cutting off external environment interference.Institute
Radio-frequency shield room 10 is stated in cubic, totally-enclosed, inside forms the test space, and it is retractable to be entered and left for personnel there are switching door,
The inside quadrangle of radio-frequency shield room 10 is respectively arranged with interference signal source 20, and middle part is provided with test station mechanism 40, interference letter
Number source 20 is for providing parameter controllable interference signal, when the parameter includes but is not limited to transmission power, tranmitting frequency, transmitting
Between, transmitting gap and use antenna and 20 quantity of interference signal source etc..Be provided with outside the radio-frequency shield room 10 control and
Test macro 30, radio-frequency shield room 10 are provided with switching device 50, control and test macro 30 and test station mechanism on one side
40 are connected to switching device 50 by cable respectively, realize control and the company between test macro 30 and test station mechanism 40
It connects.Since interference signal source 20 is located inside radio-frequency shield room 10, therefore the interference signal of its transmitting only can be in radio-frequency shield room 10
Internal communication, reflection and consumption will not be leaked to outside radio-frequency shield room 10, and because control and test macro 30 and test work
Position mechanism 40 is transferred by switching device 50, and outer signals can be effectively prevent to enter inside radio-frequency shield room 10, formed additional
Interference, to ensure the accuracy and consistency of test result.
The control and test macro 30 include jamming decision and audio test system, jamming decision and audio
Test macro is connected.The switching device 50 includes network filter and cable switching plate, and jamming decision and network are filtered
Wave device passes through cable respectively and is connected to interchanger, and audio test system is connected to cable switching plate by cable.Test station machine
Structure 40 is connected to cable switching plate by cable, realizes the connection with audio test system.Interference signal source 20 is connected by cable
It is connected to network filter, realizes the connection with jamming decision.
The test station mechanism 40 includes a turntable 41, and turntable 41 is driven by stepper motor and rotated, and stepper motor is logical
It crosses cable and is connected to cable switching plate, and then connect with audio test system, audio test system controls turntable 41 and rotates.It is described
Several artitificial ears 42 are set on turntable 41, and for monitoring the various test results of part to be measured during the test, artitificial ear 42 is logical
It crosses cable and is connected to cable switching plate, and then connect with audio test system, audio test system controls artitificial ear 42 and monitors knot
The record of fruit and the transmitting of swept-frequency signal.
Communication adapter 43 is additionally provided in the radio-frequency shield room 10, communication adapter 43 is connected to cable by cable
Pinboard, and then connect with audio test system, for sending swept-frequency signal.The swept-frequency signal of communication adapter 43 is by certainly
The subsidiary antenna of body carries out the transmitting of signal, carries out wireless communication with part to be measured.Specifically, since part to be measured work is in bluetooth frequency
Duan Shang, so jamming decision, interference signal source 20 and its subsidiary antenna and communication adapter 43 and its subsidiary antenna
The microwave communication frequency range for using and controlling is Bluetooth band, refers specifically to the ISM band of 2.4-2.485GHz.
Cable described above includes power supply line and data line, is selected according to different functions.
The jamming decision includes a master control PC, is provided with control module in master control PC, is arranged by control module
Parameter sends instruction to interference signal source 20 and generates corresponding interference signal.
The interference signal source 20 include central die, baseband module, radio-frequency module, power amplifier, match circuit and
Antenna, central die, baseband module, radio-frequency module, power amplifier, match circuit and antenna are sequentially connected.It is precisely controlled dry
The annoyance level for disturbing signal source 20, mainly by the setting parameter of jamming decision control module, towards in interference signal source 20
It entreats chip to send backstage to instruct, first sets the frequency range and time slot of interference signal, then then pass through to radio-frequency module by baseband module
Power amplifier is amplified according to the gain of setting, and the interference signal of controllable precise is finally launched from antenna.Accurate control
Key point be to control the gain of power amplifier and there is watt level output result to return proofreading function, with confirmation
Gain modifications are correctly completed.
When test, part to be measured is placed on artitificial ear 42, is established by Bluetooth protocol with communication adapter 43 and is wirelessly connected
It connects, then opens jamming decision, the interference signal relevant parameter of interference signal source 20 is set, is then set in audio test system
Set the swept-frequency signal parameter that the rotation parameter of improvement platform 41, the monitoring parameter of artitificial ear 42 and communication adapter 43 emit
The anti-interference ability for starting part to be measured is tested automatically, and after completion to be tested, test result can be transferred from audio test system
Record file.
A kind of automated testing method of audio frequency apparatus anti-interference ability, includes the following steps:
Step S1 before test, sets the rotation time slot for rotating stepping, turntable 41 of need frequency range to be tested, turntable 41
And the specification of circle number, swept-frequency signal and each group interference signal；
Step S2 connects part to be measured and artitificial ear 42, and has configured wireless connection with communication adapter 43；
Step S3, audio test system transmission start test instruction to jamming decision, and jamming decision is controlled respectively
Subordinate's interference signal source 20 processed sends controllable interference signal according to the interference signal specification of setting, and audio test system is sent out simultaneously
It send instruction to turntable 41, is rotated 360 ° according to the rotation stepping and rotation time slot of setting；
Step S4, artitificial ear 42 are monitored and acquire the audio-frequency test under each angle as a result, feeding back to audio test system
It is recorded；
Step S5, after the completion of one group of test, audio test system is assigned second group of specification interference signal of beginning automatically and is surveyed
The instruction of examination is tested by step 3, the circulation of step 4, to jamming decision until completing all set tests again
Content.
Step S6 after the completion of test, can transfer test result record file from audio test system.
Compared with prior art, the automatic test device of audio frequency apparatus anti-interference ability of the invention and method by pair
The interference signal of interference signal source 20 controls, and on the working frequency range of needs, selects different 20 quantity of interference signal source,
And the parameters such as different transmission powers, transmission time slot and emission duration are customized for each interference signal source 20, it discharges
The controllable interference signal of specification recycles audio test system, turntable 41, communication adapter 43 and artitificial ear 42 by treating
The monitoring of part is surveyed, the part to be measured recorded under different size interference signal tests performance, and generates the objective test report of result, supplies
Staff consults, analyzes and achieves；
Have the advantages that 1, due to completing in radio-frequency shield room 10, when test not will receive extraneous disorder and
Uncontrollable electromagnetic environment interference, greatly improves the accuracy and consistency of test result；2, it is replaced by the monitoring of artitificial ear 42
It not will receive the subjective impact of people for true man's ears, test result, more there is objectivity；3, test process is not necessarily to personnel's value
It keeps, is automatically performed and records data, it is more intelligent, it can greatly promote testing efficiency.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the scope of the invention, all at this
Made any modification within the design of invention, equivalent replacement and improvement etc. should be included in scope of patent protection of the invention
It is interior.
Claims (9)
1. a kind of automatic test device of audio frequency apparatus anti-interference ability, which is characterized in that described to penetrate including radio-frequency shield room
The test space is formed inside frequency screened room, the inside quadrangle of radio-frequency shield room is respectively arranged with interference signal source, and middle part is provided with
Test station mechanism, the radio shielding outdoor are provided with control and test macro, and being provided on one side for radio-frequency shield room turns
Connection device, control and test macro and test station mechanism pass through cable respectively and are connected to switching device, realize control and test
Connection between system and test station mechanism；
The control and test macro include jamming decision and audio test system, jamming decision and audio-frequency test system
System is connected.
2. the automatic test device of audio frequency apparatus anti-interference ability as described in claim 1, which is characterized in that the switching
Device includes network filter and cable switching plate, and jamming decision and network filter pass through cable respectively and be connected to exchange
Machine, audio test system are connected to cable switching plate by cable.
3. the automatic test device of audio frequency apparatus anti-interference ability as claimed in claim 2, which is characterized in that the test
Station mechanism is connected to cable switching plate by cable, realizes the connection with audio test system.
4. the automatic test device of audio frequency apparatus anti-interference ability as claimed in claim 2, which is characterized in that the interference
Signal source is connected to network filter by cable, realizes the connection with jamming decision.
5. the automatic test device of audio frequency apparatus anti-interference ability as claimed in claim 2, which is characterized in that the test
Station mechanism includes a turntable, and turntable is driven by stepper motor and rotated, and stepper motor is connected to cable switching plate by cable,
And then connect with audio test system, audio test system controls turntable rotation.
6. the automatic test device of audio frequency apparatus anti-interference ability as claimed in claim 5, which is characterized in that the turntable
Upper several artitificial ears of setting, artitificial ear is connected to cable switching plate by cable, and then connect with audio test system.
7. the automatic test device of audio frequency apparatus anti-interference ability as claimed in claim 2, which is characterized in that the radio frequency
Communication adapter is additionally provided in screened room, communication adapter is connected to cable switching plate, and then and audio-frequency test by cable
System connection.
8. the automatic test device of audio frequency apparatus anti-interference ability as described in claim 1, which is characterized in that the interference
Control system includes a master control PC, and control module is provided in master control PC, and control module is arranged parameter and sends to interference signal source
Instruction generates corresponding interference signal.
9. a kind of automated testing method of audio frequency apparatus anti-interference ability, which comprises the steps of:
Step S1 before test, sets the rotation time slot and circle for rotating stepping, turntable 41 of need frequency range to be tested, turntable 41
The specification of number, swept-frequency signal and each group interference signal；
Step S2 connects part to be measured and artitificial ear 42, and has configured wireless connection with communication adapter 43；
Step S3, audio test system transmission start test instruction to jamming decision, under jamming decision controls respectively
Belong to interference signal source 20 and send controllable interference signal according to the interference signal specification of setting, audio test system is sent simultaneously to be referred to
It enables to turntable 41, is rotated 360 ° according to the rotation stepping and rotation time slot of setting；
Step S4, artitificial ear 42 are monitored and acquire the audio-frequency test under each angle as a result, feeding back to audio test system progress
Record；
Step S5, after the completion of one group of test, audio test system is assigned automatically starts second group of specification interference signal test
Instruction is tested by step 3, the circulation of step 4, to jamming decision until completing in all set tests again
Hold.
Step S6 after the completion of test, can transfer test result record file from audio test system.
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Cited By (5)
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| CN112085748A (en) * | 2020-09-08 | 2020-12-15 | 扬芯科技(深圳)有限公司 | Radio frequency interference automatic test method, system, equipment and storage medium |
| CN112702725A (en) * | 2020-11-27 | 2021-04-23 | 深圳市思讯通信技术有限公司 | Actual experience sense data test system of wearable audio equipment of wireless bluetooth |
| CN114050876A (en) * | 2021-10-29 | 2022-02-15 | 国网辽宁省电力有限公司丹东供电公司 | Method and device for testing communication equipment |
| CN114785432A (en) * | 2022-06-17 | 2022-07-22 | 扬芯科技(深圳)有限公司 | Electronic product testing method and system |
| CN115297502A (en) * | 2022-07-13 | 2022-11-04 | 深圳百讴声学技术有限公司 | Wireless transmission signal anti-interference test equipment and method |
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