CN101729635A - Method and device for testing audio loop of communication terminal - Google Patents

Method and device for testing audio loop of communication terminal Download PDF

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Publication number
CN101729635A
CN101729635A CN200910215829A CN200910215829A CN101729635A CN 101729635 A CN101729635 A CN 101729635A CN 200910215829 A CN200910215829 A CN 200910215829A CN 200910215829 A CN200910215829 A CN 200910215829A CN 101729635 A CN101729635 A CN 101729635A
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audio
signal
audio signal
output
test
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CN200910215829A
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CN101729635B (en
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孙盈军
张磊
任东江
宫志坚
杜立锋
郑凤媛
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ZTE Corp
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ZTE Corp
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Abstract

The invention discloses a method and a device for testing an audio loop of a communication terminal, relates to the field of communication, and aims to solve the problem that the prior art cannot test the audio loop of the communication terminal with a relatively low cost, high quality and high efficiency. The method comprises the following steps that: a tested motherboard outputs two routes of audio signals; the tested motherboard outputs a switching signal to select a route of audio signal as a Mac input signal which is input to a Mac circuit to perform audio acquisition; the audio signal acquired by the Mac circuit is compared with a corresponding reference signal; and a test result is output according to the information obtained according to the comparison. The device comprises an audio output comparison module, an audio selecting module and a test result output module. The method and the device can test the audio loop of the communication terminal under the condition of not being interfered by environment.

Description

A kind of method of testing audio loop of communication terminal and device
Technical field
The present invention relates to the communications field, particularly relate to a kind of method and device of testing audio loop of communication terminal.
Background technology
No matter how high automaticity is for the pattern of the production test audio loop that present international communicating terminal product scope is general, how powerful function is, they still are that the transducer that tradition relies on the test macro is gathered the test parameter of measurand, changed, analyzed by computer again, the result with analysis result and standard compares and exports final test judged result (" qualified " or " defective ") at last.
The enterprise that the communicating terminal product is carried out attribute test not only needs testing equipment that the every mass parameter of product is gathered, and also needs data analysis system to evaluate last quality.Domestic most testing equipment all is to introduce at present, price is very expensive, as the French SAGEM technology platform product of introducing, this platform product relies on the sound radio frequency testing platform of cost 300,000 RMB/platform and realizes the mobile phone partial function is detected, yet quite a few video capability does not also realize fully, and equipment is quite complicated.The test fixture of most of communicating terminal product and testboard coupling also needs to be provided by French SAGEM fully, breaks down often to return France's maintenance.
Eyes, ear that more domestic in addition enterprises rely on the workman in a large number carry out attribute test to the communicating terminal product.Need carry out SMT mainboard moulding Function detection at least as mobile phone products at production line; Final assembly QC1 (QC:Quality check is a quality testing station title) Function detection; The QC2 Function detection; Four road Function detection such as OQC Function detection.Renovate slide phone and also will renovate the moulding Function detection.Average per pass detects station needs three to detect the workman.Also to carry out the QC sampling observation after per pass detects in addition.In these detected, the basic at present experienced detection workman of dependence of non-SAGEM platform technology product detected audio-frequency function (microphone, loudspeaker, receiver, motor (for the communicating terminal product produces vibrations) etc.) with ear.
A kind of method of testing of utilizing communicating terminal self microphone as audio loops such as sound transducer test horn, Mike and motor loop has appearred at present, corresponding testing device is provided simultaneously, but its unique deficiency is the interference that is subjected to the unsettled noise of test environment easily, therefore slowly fails to obtain to promote.
Thus to a certain extent as can be seen, because the testing equipment costliness is difficult in maintenance, operation inconvenience, the manpower consumption is big, causes the cost of communicating terminal product to have quite a few to consume in the production functional test.However, though examination criteria differs, workman's omission and cause individual product arrived market still can find malfunctioning such as microphone, loudspeaker are noiseless, motor does not have the functional fault that shakes or the like.Emerging method of testing owing to be subjected to the interference of the unsettled noise of test environment easily, can't obtain promoting again.Test has become and has reduced cost and the bottleneck with efficient of improving the quality.Low-cost, high efficiency, high-quality in this case production test system can find new profit break-through point for enterprise.
Summary of the invention
The invention provides a kind of method and device of testing audio loop of communication terminal, can not be in order to solve prior art with lower cost, the problem of the testing audio loop of communication terminal of high-quality and high-efficiency.
The method of testing audio loop of communication terminal of the present invention comprises the following steps: audio frequency output step: tested mainboard output two-way audio signal; The audio selection step: tested mainboard output switching signal, to select one tunnel audio signal as carrying out audio collection in Mike's input signal input Mac circuit; The audio frequency comparison step: the audio signal that described circuit is collected compares with corresponding reference signal; Test result output step: output test result according to contrast gained information.
Above-mentioned two-way audio signal can be loudspeaker audio signal and receiver audio signal; Switching signal can be motor signal.
Further, select the logic of audio signal to be in the audio selection step: after one tunnel chosen audio signal draws test result,, then to select another road audio signal to test again if qualified; Otherwise, stop test.Perhaps, select the logic of audio signal to be: after one tunnel chosen audio signal draws test result, to continue to select another road audio signal to test.
Further, in the audio frequency output step, tested mainboard is selected the audio file that self prestores and is play, output two-way audio signal.
Further, in the audio frequency comparison step, the test value of each parameter of output after described contrast, if each test value all falls into and its corresponding parameters scope, then the test result of exporting in test result output step is qualified, otherwise, for defective.
Further, before the audio selection step, the two-way audio signal is carried out linear attenuation respectively; Perhaps, in the audio selection step, a road chosen audio signal is carried out linear attenuation.
The device of testing audio loop of communication terminal of the present invention comprises: audio frequency output comparison module is used to control tested mainboard output two-way audio signal and switching signal, and the audio signal that Mac circuit collects is compared with corresponding reference signal; The audio selection module is used to receive the two-way audio signal and the switching signal of tested mainboard output, via the selection of switching signal, with a road chosen audio signal as carrying out audio collection in Mike's input signal input Mac circuit; Test result output module, the information that contrasts gained according to audio frequency output comparison module outputs test result.
Further also can comprise: the primary control program module, be used to set to be tested, and the conformity testing parameter area of setting each test item.
Can comprise in the audio selection module: the two-way selector switch, be used to receive the loudspeaker and the receiver two-way audio signal of tested mainboard output, and with the motor signal of tested mainboard output as switching signal; Under the control of motor signal, select one tunnel audio signal input Mac circuit.Also can comprise in the audio selection module: two linear attenuation circuit, be used for the two-way audio signal is carried out linear attenuation respectively, and with the input of the audio signal after linear attenuation two-way selector switch; Perhaps linear attenuation circuit after being used for one tunnel audio signal of two-way selector switch output carried out linear attenuation, outputs to Mac circuit again.
Beneficial effect of the present invention is as follows:
Cost is low.Because the present invention tests tested mainboard before unassembled one-tenth complete machine, so need not expensive audio frequency shielded box with respect to prior art.
The test mass height.Test automation degree height, the disconnected probability of erroneous judgement reduces; For test products provides a reference atmosphere, realize the objective comparison of standard machine (by quality certification, general research and development department provides) and machine Q factor to be measured.
The efficient height.System integration degree height can walk abreast the data parameter is gathered, linear then the processing, and with the direct display end of test result.
Description of drawings
Fig. 1 is the method flow diagram in the embodiment of the invention 1;
Fig. 2 is the apparatus structure schematic diagram in the embodiment of the invention 2;
Fig. 3 is the specific implementation schematic diagram in the embodiment of the invention 3;
Fig. 4 is the flow chart in the embodiment of the invention 4.
Embodiment
The method of a kind of testing audio loop of communication terminal provided by the invention and device are mainly used in the audio loop of communicating terminal product are tested, and further also can test motor loop, as mobile phone, intercom and Personal Handyphone System etc.Main thought is in the production test procedure of end product, under most of situation, as long as guarantee that its circuit loop is working properly, just can reach test purpose, if before unassembled one-tenth complete machine, test, loudspeaker and Mike also are not installed on the tested mainboard, at this moment only the signal of input loudspeaker and receiver on the mainboard need be carried out linear attenuation, import the input circuit of microphone again, whole audio-frequency test just can carry out under the interference that is not subjected to environment.In addition because the motor signal on the mainboard is a d. c. voltage signal, therefore can utilize it as switching signal, control loudspeaker, receiver two-way timesharing input Mac circuit, so both tested motor loop, solved the switching problem of loudspeaker, receiver signal again, and then in testing audio, also tested motor signal, thereby make system integration degree higher.
Based on above-mentioned thinking, below describe in detail by some embodiment and accompanying drawing.
Embodiment 1:
Fig. 1 is the method flow diagram in the embodiment of the invention 1, and as shown in Figure 1, this method comprises following key step:
S1, tested mainboard are selected audio file and are play, output two-way audio signal.
S2, tested mainboard output switching signal to select one tunnel audio signal as in Mike's input signal input Mac circuit, carry out audio collection by Mac circuit to it.
S3, the audio signal that Mac circuit is collected compare with corresponding reference signal.
S4, output test result according to contrast gained information.
Among the above-mentioned steps S1, the audio file that tested mainboard is selected can be the audio file that self prestores.
Among the above-mentioned steps S2, select the logic of audio signal to be: after one tunnel chosen audio signal draws test result,, then to select another road audio signal to test again if qualified; Otherwise, stop test; Perhaps, after one tunnel chosen audio signal draws test result, continue to select another road audio signal to test.
Embodiment 2:
Fig. 2 is the apparatus structure schematic diagram in the embodiment of the invention 2, and as shown in Figure 2, the described device of present embodiment comprises: audio frequency output comparison module, audio selection module and test result output module.
Wherein, audio frequency output comparison module is used to control tested mainboard output two-way audio signal and switching signal, and the audio signal that Mac circuit collects is compared with corresponding reference signal.
The audio selection module is used to receive the two-way audio signal and the switching signal of tested mainboard output, via the selection of switching signal, with a road chosen audio signal as carrying out audio collection in Mike's input signal input Mac circuit.
Test result output module, the information that contrasts gained according to audio frequency output comparison module outputs test result.
Further also can comprise: the primary control program module, be used for providing friendly operation interface to the tester, can select the setting range of the test of single functional test and global function and each test item test parameter.
Embodiment 3:
Based on the foregoing description 1 and 2, in specific implementation, the audio selection module can be finished by hardware; Audio frequency output comparison module, test result output module and primary control program module can be finished by software.
Fig. 3 is the specific implementation schematic diagram in the embodiment of the invention 3, and as shown in Figure 3, hardware components specifically can be functional test anchor clamps 31, comprising two linear attenuation circuit 311 and 312, and a two-way selector switch 313.Signal is respectively audible warning, receiver signal, motor signal, Mike's input signal.The loudspeaker of tested mainboard, receiver are exported the audio signal of fixed frequency respectively, through the decay of linear attenuation circuit 311 and 312, are input to two inputs of two-way selector switch 313.Two-way selector switch 313 receives motor signal, and control via motor signal, two-way selector switch 313 plays the effect of selecting output, and one tunnel audio signal of output is input to the input of Mac circuit as Mike's input signal, by Mac circuit Mike's input signal is carried out audio collection.Certainly, also can select replacement scheme, at linear attenuation circuit of output connection of two-way selector switch 313, the road audio signal that two-way selector switch 313 is exported decays, be input to the input of Mac circuit again, Mike's input signal carried out audio collection by Mac circuit.Do not repeat them here.
Referring to shown in Figure 3, software section is included in the computer software, exports the audio signal of fixed frequency respectively by loudspeaker, the receiver of the tested mainboard of software control, and controls tested mainboard output motor signal; Mike's input signal that will be input to Mac circuit by software compares with corresponding reference signal; According to the conformity testing parameter area and the contrast gained information of each test item of setting, output test result at last.If each test value all falls into and its corresponding parameters scope, then Shu Chu test result is qualified, otherwise, for defective.
Certainly, also available software simulation realization of hardware components in the present embodiment, software section is the realization of available hardware overlap joint also, all should be within protection range of the present invention.
Embodiment 4:
The audio frequency difference that same source of sound produces in equivalent environment is identical, though that promptly identical machine is gathered audio files and former audio files that same source of sound generates is variant, difference is identical.So can be benchmaring machine to be measured with the audio frequency differential file of standard machine.The standard machine is the qualified products by every strict test index.
Fig. 4 is the flow chart in the embodiment of the invention 4, and as shown in Figure 4, the embodiment of the invention 4 mainly comprises the steps:
S401, select one section audio files or mainboard self source of sound as loudspeaker test source of sound (below be referred to as source of sound and a) be written into the standard machine and utilize the loudspeaker output loop, attenuator circuit on the anchor clamps, Mike's receiving loop is finished the collection of source of sound a data, storage, and will store audio files (below be referred to as source of sound c) as loudspeaker loop benchmark.
In S402, when test,, tested mainboard was written into source of sound a, utilized the attenuator circuit on the anchor clamps of voice output loop, and Mike's receiving loop is finished the collection of source of sound a data, storage, and will store source of sound (below be referred to as source of sound b).
S403, source of sound b and source of sound c are compared, the audio files comparison can be selected existing audio frequency comparison algorithm for use, and exports the test value of each parameter, and each parameter area (this scope can be debugged in software) of test value and setting is contrasted one by one.If each test value all within the qualified parameter area of its correspondence, is just tested the next item down (receiver, motor loop), change S404 over to; Otherwise the termination test program changes S407 over to.
Tested mainboard is written into motor signal d triggering selection switch simultaneously and selects receiver surge damping circuit signal, is written into receiver source of sound e simultaneously during the test of S404, the next item down.
The mode that S405, usefulness are similar to the loudspeaker loop obtains source of sound f.
S406, source of sound f and benchmark source of sound g (in like manner S401 generates receiver loop benchmark source of sound g) compare.
S407, draw comparative result.
S408, according to comparative result output final testing result and Q factor; If each test value all falls in the qualified parameter area corresponding with it, then Shu Chu final testing result is qualified, exports the test value of each test item simultaneously; Otherwise the final testing result of output is defective, exports the test value of each defective test item simultaneously.
Annotate: source of sound c, source of sound g have deposited tested machine in by the collection of standard machine and before test.Be written into source of sound, promptly program with source of sound by taking out in the internal memory and showing on loudspeaker, the receiver.
Whether selecting the logic of audio signal also can be after one tunnel chosen audio signal draws test result, no matter qualified, continue to select another road audio signal to test, and exports every test result at last in the lump.Do not repeat them here.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.

Claims (10)

1. the method for a testing audio loop of communication terminal is characterized in that, comprises the following steps:
Audio frequency output step: tested mainboard output two-way audio signal;
The audio selection step: tested mainboard output switching signal, to select one tunnel audio signal as carrying out audio collection in Mike's input signal input Mac circuit;
The audio frequency comparison step: the audio signal that described Mac circuit is collected compares with corresponding reference signal;
Test result output step: output test result according to contrast gained information.
2. the method for testing audio loop of communication terminal according to claim 1, it is characterized in that, in the audio selection step, select the logic of audio signal to be: after one tunnel chosen audio signal draws test result, if qualified, then select another road audio signal to test again; Otherwise, stop test; Perhaps,
After one tunnel chosen audio signal draws test result, continue to select another road audio signal to test.
3. the method for testing audio loop of communication terminal according to claim 1 is characterized in that, in the audio frequency output step, tested mainboard is selected the audio file that self prestores and play, output two-way audio signal.
4. the method for testing audio loop of communication terminal according to claim 1, it is characterized in that, in the audio frequency comparison step, the test value of each parameter of output after described contrast, if each test value all falls into and its corresponding parameters scope, then the test result of exporting in test result output step is qualified, otherwise, for defective.
5. the method for testing audio loop of communication terminal according to claim 1 is characterized in that, before the audio selection step two-way audio signal is carried out linear attenuation respectively;
Perhaps, in the audio selection step, a road chosen audio signal is carried out linear attenuation.
6. the method for testing audio loop of communication terminal according to claim 1 is characterized in that described two-way audio signal is loudspeaker audio signal and receiver audio signal; Described switching signal is a motor signal.
7. the device of a testing audio loop of communication terminal is characterized in that, comprising:
Audio frequency output comparison module is used to control tested mainboard output two-way audio signal and switching signal, and the audio signal that Mac circuit collects is compared with corresponding reference signal;
The audio selection module is used to receive the two-way audio signal and the switching signal of tested mainboard output, via the selection of switching signal, with a road chosen audio signal as carrying out audio collection in Mike's input signal input Mac circuit;
Test result output module, the information that contrasts gained according to audio frequency output comparison module outputs test result.
8. as the device of testing audio loop of communication terminal as described in the claim 7, it is characterized in that, comprise in the audio selection module: the two-way selector switch, be used to receive the loudspeaker and the receiver two-way audio signal of tested mainboard output, and with the motor signal of tested mainboard output as switching signal, under the control of motor signal, select one tunnel audio signal input Mac circuit.
9. as the device of testing audio loop of communication terminal as described in the claim 8, it is characterized in that, comprise in the audio selection module:
Two linear attenuation circuit are used for the two-way audio signal is carried out linear attenuation respectively, and with the input of the audio signal after linear attenuation two-way selector switch;
Perhaps linear attenuation circuit after being used for one tunnel audio signal of two-way selector switch output carried out linear attenuation, outputs to Mac circuit again.
10. as the device of testing audio loop of communication terminal as described in the claim 7, it is characterized in that, also comprise: the primary control program module, be used to set to be tested, and the conformity testing parameter area of setting each test item.
CN2009102158292A 2009-12-30 2009-12-30 Method and device for testing audio loop of communication terminal Expired - Fee Related CN101729635B (en)

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Granted publication date: 20131204

Termination date: 20161230