CN101729635B - 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
CN101729635B
CN101729635B CN2009102158292A CN200910215829A CN101729635B CN 101729635 B CN101729635 B CN 101729635B CN 2009102158292 A CN2009102158292 A CN 2009102158292A CN 200910215829 A CN200910215829 A CN 200910215829A CN 101729635 B CN101729635 B CN 101729635B
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audio
signal
output
audio signal
communication terminal
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CN2009102158292A
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CN101729635A (en
Inventor
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 current international communication terminal product field is general, how powerful function is, they are still that tradition relies on transducer on test macro the test parameter of measurand is gathered, changed, analyzed by computer again, finally the result of analysis result and standard is contrasted and exports final test judged result (" qualified " or " defective ").
The enterprise that communication terminal product is carried out to attribute test not only needs testing equipment to be gathered the every mass parameter of product, also needs data analysis system to evaluate last quality.Domestic most testing equipment is all 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 the equipment very complex.The test fixture of most of communication terminal product and testboard coupling also needs by French SAGEM, to be provided fully, breaks down and often need to return France's maintenance.
More domestic enterprises rely on the workman in a large number in addition eyes, ear carry out attribute test to communication terminal product.As mobile phone products need to carry out at least SMT mainboard moulding Function detection at production line; Final assembly QC1 (QC:Quality check is quality testing station title) Function detection; The QC2 Function detection; The 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.Per pass also will carry out the QC sampling observation after detecting in addition.In these detect, the non-SAGEM platform technology product experienced detection workman of basic dependence is at present used ear detection audio-frequency function (microphone, loudspeaker, receiver, motor (for communication terminal product produces vibrations) etc.).
A kind of method of testing of communicating terminal self microphone as the audio loops such as sound transducer test horn, Mike and motor loop of utilizing appearred at present, corresponding testing apparatus is provided simultaneously, but its unique deficiency is the interference that easily is subject to the unsettled noise of test environment, therefore slowly fail to be promoted.
Can find out to a certain extent thus, due to the testing equipment costliness, difficult in maintenance, operation inconvenience, the manpower consumption is large, causes the cost of communication terminal product to have quite a few to consume in the production functional test.However, even examination criteria differs, the workman is undetected, cause individual product arrived market still can find malfunctioning such as microphone, loudspeaker are noiseless, motor is without shaking etc. functional fault.Emerging method of testing, again due to the interference that easily is subject to the unsettled noise of test environment, can't be promoted.Test has become a bottleneck that reduces costs and improve quality and efficiency.Low-cost, high efficiency, high-quality production test system can find new profit break-through point for enterprise in this case.
Summary of the invention
The invention provides a kind of method and device of testing audio loop of communication terminal, can not be with lower cost in order to solve prior art, 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, using and select a road audio signal as in Mike's input signal input Mac circuit, carrying out audio collection; The audio frequency comparison step: the audio signal that described circuit is collected is contrasted with corresponding reference signal; Test result output step: according to contrast gained information output test result.
Above-mentioned two-way audio signal can be loudspeaker audio signal and receiver audio signal; Switching signal can be motor signal.
Further, in the audio selection step, select the logic of audio signal to be: after chosen audio signal draws test result on a road, if qualified, to select again another road audio signal to be tested; Otherwise, stop test.Perhaps, select the logic of audio signal to be: after chosen audio signal draws test result on a road, to continue to select another road audio signal to be tested.
Further, in audio frequency output step, tested mainboard is selected the audio file self prestored 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 the parameter area corresponding with it, 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 respectively to linear attenuation; Perhaps, in the audio selection step, a chosen road audio signal is carried out to linear attenuation.
The device of testing audio loop of communication terminal of the present invention comprises: audio frequency output comparison module, and for controlling tested mainboard output two-way audio signal and switching signal, and the audio signal that Mac circuit is collected is contrasted with corresponding reference signal; The audio selection module, for receiving two-way audio signal and the switching signal of tested mainboard output, via the selection of switching signal, carry out audio collection using a chosen road audio signal as Mike's input signal in the input Mac circuit; Test result output module, according to the information output test result of audio frequency output comparison module contrast gained.
Further also can comprise: the primary control program module, for setting to be tested, and the conformity testing parameter area of setting each test item.
In the audio selection module, can comprise: the two-way selector switch, for receiving loudspeaker and the receiver two-way audio signal of the output of tested mainboard, and using the motor signal of tested mainboard output as switching signal; Under the control of motor signal, select a road audio signal input Mac circuit.In the audio selection module, also can comprise: two linear attenuation circuit, for the two-way audio signal is carried out respectively to linear attenuation, and by the input of the audio signal after linear attenuation two-way selector switch; Perhaps a linear attenuation circuit, after carrying out linear attenuation for the road audio signal by the output of two-way selector switch, then output to Mac circuit.
Beneficial effect of the present invention is as follows:
Cost is low.Because the present invention is tested tested mainboard before unassembled one-tenth complete machine, thus with respect to prior art without expensive audio frequency shielded box.
Test mass is high.The test automation degree is high, and 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.
Efficiency is high.System integration degree is high, and can walk abreast the data parameter is gathered, the linear processing then, and by the direct display end of test result.
The accompanying drawing explanation
Fig. 1 is the method flow diagram in the embodiment of the present invention 1;
Fig. 2 is the apparatus structure schematic diagram in the embodiment of the present invention 2;
Fig. 3 is the specific implementation schematic diagram in the embodiment of the present invention 3;
Fig. 4 is the flow chart in the embodiment of the present invention 4.
Embodiment
The method of a kind of testing audio loop of communication terminal provided by the invention and device, be mainly used in the audio loop of communication terminal product is tested, and further also can be tested motor loop, as mobile phone, intercom and Personal Handyphone System etc.Main thought is in the production test procedure of end product, in most of situation, as long as guarantee that its circuit loop is working properly, just can reach test purpose, if tested before unassembled one-tenth complete machine, loudspeaker and Mike also are not installed on tested mainboard, at this moment only the signal of input loudspeaker and receiver on mainboard need to be carried out to linear attenuation, input the input circuit of microphone, whole audio-frequency test just can carry out under the interference that is not subject to environment again.In addition because the motor signal on 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 again the switching problem of loudspeaker, receiver signal, and then also tested motor signal in testing audio, thereby make system integration degree higher.
Based on above-mentioned thinking, below by some embodiment and accompanying drawing, describe in detail.
Embodiment 1:
Fig. 1 is the method flow diagram in the embodiment of the present invention 1, and as shown in Figure 1, the 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, using and select a road audio signal as in Mike's input signal input Mac circuit, by Mac circuit, it carried out to audio collection.
S3, audio signal and corresponding reference signal that Mac circuit is collected are contrasted.
S4, according to contrast gained information output test result.
In above-mentioned steps S1, the audio file that tested mainboard is selected can be the audio file self prestored.
In above-mentioned steps S2, select the logic of audio signal to be: after chosen audio signal draws test result on a road, if qualified, to select again another road audio signal to be tested; Otherwise, stop test; After perhaps the chosen audio signal in ,Zai mono-tunnel draws test result, continue to select another road audio signal to be tested.
Embodiment 2:
Fig. 2 is the apparatus structure schematic diagram in the embodiment of the present invention 2, and as shown in Figure 2, the described device of the present embodiment comprises: audio frequency output comparison module, audio selection module and test result output module.
Wherein, audio frequency output comparison module, for controlling tested mainboard output two-way audio signal and switching signal, and the audio signal that Mac circuit is collected is contrasted with corresponding reference signal.
The audio selection module, for receiving two-way audio signal and the switching signal of tested mainboard output, via the selection of switching signal, carry out audio collection using a chosen road audio signal as Mike's input signal in the input Mac circuit.
Test result output module, according to the information output test result of audio frequency output comparison module contrast gained.
Further also can comprise: the primary control program module, for friendly operation interface is provided to the tester, can select the setting range of single functional test and global function test and each test item test parameter.
Embodiment 3:
Based on above-described embodiment 1 and 2, in specific implementation, the audio selection module can be completed by hardware; Audio frequency output comparison module, test result output module and primary control program module can be completed by software.
Fig. 3 is the specific implementation schematic diagram in the embodiment of the present invention 3, and as shown in Figure 3, hardware components specifically can be functional test fixture 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 respectively the audio signal of fixed frequency, 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 a road 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 to audio collection.Certainly, also can select replacement scheme, at a linear attenuation circuit of output connection of two-way selector switch 313, the road audio signal that two-way selector switch 313 is exported is decayed, be input to again the input of Mac circuit, by Mac circuit, Mike's input signal carried out to audio collection.Do not repeat them here.
Shown in Figure 3, software section is included in computer software, by loudspeaker, the receiver of the tested mainboard of software control, exports respectively the audio signal of fixed frequency, and controls tested mainboard output motor signal; Mike's input signal that will be input to Mac circuit by software is contrasted with corresponding reference signal; Finally, according to conformity testing parameter area and the contrast gained information of each test item of setting, output test result.If each test value all falls into the parameter area corresponding with it, the test result of output 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, although identical machine to gather audio files and former audio files that same source of sound generates variant, difference is identical.So the audio frequency differential file of Standard Machine of can take is benchmaring machine to be measured.Standard Machine is the qualified products by every strict test index.
Fig. 4 is the flow chart in the embodiment of the present invention 4, and as shown in Figure 4, the embodiment of the present 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 Standard Machine and utilize the loudspeaker output loop, attenuator circuit on fixture, Mike's receiving loop completes 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 fixture of voice output loop, and Mike's receiving loop completes 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, and the test value of output parameters, and each parameter area of test value and setting (this scope can be debugged in software) 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), proceed to S404; Otherwise the termination test program, proceed to S407.
During the test of S404, the next item down, 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.
The mode that S405, use 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, generate 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, the final testing result of output is qualified, exports the test value of each test item simultaneously; Otherwise the final testing result of output is defective, export the test value of each defective test item simultaneously.
Annotate: source of sound c, source of sound g has deposited tested machine in by the Standard Machine collection and before test.Be written into source of sound, program is taken out source of sound and is shown on loudspeaker, receiver in internal memory.
No matter whether the logic of selecting audio signal qualified, continues to select another road audio signal to be tested after also can the chosen audio signal in Shi Zai mono-tunnel drawing test result, finally exports in the lump every test result.Do not repeat them here.
Obviously, those skilled in the art can carry out various changes and modification and not break away from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, 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, control a two-way selector switch by switching signal and using and select a road audio signal as in Mike's input signal input Mac circuit, carrying out audio collection; The motor signal that described switching signal is tested mainboard output;
The audio frequency comparison step: the audio signal that described Mac circuit is collected is contrasted with corresponding reference signal; Described reference signal is stored in tested machine;
Test result output step: according to contrast gained information output test result.
2. the method for testing audio loop of communication terminal as claimed in claim 1, it is characterized in that, in the audio selection step, select the logic of audio signal to be: after chosen audio signal draws test result on a road, if qualified, select again another road audio signal to be tested; Otherwise, stop test; Perhaps,
After chosen audio signal draws test result on a road, continue to select another road audio signal to be tested.
3. the method for testing audio loop of communication terminal as claimed in claim 1, is characterized in that, in audio frequency output step, tested mainboard is selected the audio file self prestored and play, output two-way audio signal.
4. the method for testing audio loop of communication terminal as claimed in 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 the parameter area corresponding with it, 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 as claimed in claim 1, is characterized in that, before the audio selection step, the two-way audio signal carried out respectively to linear attenuation;
Perhaps, in the audio selection step, a chosen road audio signal is carried out to linear attenuation.
6. the method for testing audio loop of communication terminal as claimed in claim 1, is characterized in that, described two-way audio signal is loudspeaker audio signal and receiver audio signal.
7. the device of a testing audio loop of communication terminal, is characterized in that, comprising:
Audio frequency output comparison module, for controlling tested mainboard output two-way audio signal and switching signal, and the audio signal that Mac circuit is collected is contrasted with corresponding reference signal; Reference signal is stored in tested machine;
The audio selection module, for receiving two-way audio signal and the switching signal of tested mainboard output, control a two-way selector switch via switching signal and select a road audio signal, using a chosen road audio signal as Mike's input signal, in the input Mac circuit, carry out audio collection; The motor signal that described switching signal is tested mainboard output;
Test result output module, according to the information output test result of audio frequency output comparison module contrast gained.
8. the device of testing audio loop of communication terminal as claimed in claim 7, is characterized in that, the audio selection module comprises: the two-way selector switch, and for receiving loudspeaker and the receiver two-way audio signal of tested mainboard output.
9. the device of testing audio loop of communication terminal as claimed in claim 8, is characterized in that, the audio selection module comprises:
Two linear attenuation circuit, for the two-way audio signal is carried out respectively to linear attenuation, and by the input of the audio signal after linear attenuation two-way selector switch;
Perhaps a linear attenuation circuit, after carrying out linear attenuation for the road audio signal by the output of two-way selector switch, then output to Mac circuit.
10. the device of testing audio loop of communication terminal as claimed in claim 7, is characterized in that, also comprises: the primary control program module, and for setting 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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