CN205374622U - Detection apparatus for buzzer - Google Patents
Detection apparatus for buzzer Download PDFInfo
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- CN205374622U CN205374622U CN201521055143.9U CN201521055143U CN205374622U CN 205374622 U CN205374622 U CN 205374622U CN 201521055143 U CN201521055143 U CN 201521055143U CN 205374622 U CN205374622 U CN 205374622U
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- signal
- buzzer
- telecommunication
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- frequency
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Abstract
The utility model provides a detection apparatus for buzzer, include: acoustic -electric converting circuit for gather the voice signal of buzzing ware, and be the signal of telecommunication with sound signal conversion, detection circuitry, converting circuit is connected with the acoustic -electric for obtain the frequency signal of buzzer according to the signal of telecommunication, and detect frequency signal and whether fall into the vinyl ester resin within range, if, judge then that the buzzer is qualified, otherwise, judge then that the buzzer is unqualified. The phenomenon is examined in erroneous judgement and hourglass that its is effective had avoided artifical monitor buzzer to cause, realizes quick automatic detection of buzzer, effectively improves the detection efficiency of buzzer, alleviates staff's intensity of labour, and simultaneously, its sound that can also detect different code mainboards and different model buzzers are realized integrating with different code mainboards and different model buzzer sound detection's automatic switch -overs to automatic the detection.
Description
Technical field
This utility model relates to detection technique field, particularly relates to the detecting device of a kind of buzzer.
Background technology
Air-conditioning is when switching on and shutting down, adjustment temperature humidity or air-conditioning break down, and in order to realize the purpose responding or reminding user air-conditioning fault to telecommand, generally installs buzzer in the interior mainboard of air-conditioning.Traditional it be arranged on air-conditioning mainboard buzzer and generally comprise: active Electromagnetic buzzer, passive electromagnetic buzzer and piezoelectric buzzer.
When the buzzer of air-conditioning mainboard is detected, artificial listening mode is generally adopted to judge that whether buzzer is qualified in meet the functional requirement of air-conditioning mainboard, artificial monitoring can cause people to judge by accident or the phenomenon of missing inspection, particularly when production line noise is bigger, it is easier to cause the generation of erroneous judgement and detection leakage phenomenon.
Utility model content
In consideration of it, be necessary to easily cause erroneous judgement and detection leakage phenomenon problem for artificial buzzer of monitoring, it is provided that the detecting device of the buzzer with missing inspection is artificially judged in a kind of effective minimizing by accident.
For reaching utility model purpose, it is provided that the detecting device of a kind of buzzer, described method includes:
Acoustic-electric change-over circuit, for gathering the acoustical signal of buzzer, and is converted to the signal of telecommunication by described acoustical signal；
Testing circuit, is connected with described acoustic-electric change-over circuit, for obtaining the frequency signal of described buzzer according to the described signal of telecommunication, and detect whether described frequency signal falls within the scope of predeterminated frequency, if so, then judge that described buzzer is qualified, otherwise, then judge that described buzzer is defective.
Wherein in an embodiment, described testing circuit includes:
Signal arranges amplifying circuit, is connected with described acoustic-electric change-over circuit, is used for amplifying the described signal of telecommunication；
Decision circuitry, arrange amplifying circuit with described signal to be connected, for obtaining the frequency signal of described buzzer according to the signal of telecommunication after amplifying, and judge whether described frequency signal falls within the scope of described predeterminated frequency, if, then judge that described buzzer is qualified, otherwise, then judge that described buzzer is defective.Wherein in an embodiment, described testing circuit also includes:
Digital signal conversion circuit, arrange amplifying circuit with described signal respectively and described decision circuitry is connected, being digital signal for described signal being arranged the converting electrical signal after the described amplification of amplifying circuit output, and described digital signal being flowed to described decision circuitry.
Wherein in an embodiment, described signal arranges amplifying circuit and includes:
Amplifier element, is connected with described acoustic-electric change-over circuit, is used for amplifying the described signal of telecommunication.
Wherein in an embodiment, described amplifier element is audion.
Wherein in an embodiment, described signal arranges amplifying circuit and also includes:
Collating elements, is connected with described acoustic-electric change-over circuit and described amplifier element respectively, for the signal of telecommunication of described acoustic-electric change-over circuit output is arranged, and the signal of telecommunication after arranging is flowed to described amplifier element.
Wherein in an embodiment, described collating elements is coupling electric capacity.
Wherein in an embodiment, described decision circuitry includes:
Timing unit, it is connected with described digital signal conversion circuit, for when receiving the described digital signal of described digital signal conversion circuit conveying, start timing, and when receiving the described digital signal of predetermined number, stop timing, it is thus achieved that receive the detection time that the described digital signal of predetermined number uses；
Frequency cells, is connected with described timing unit, for obtaining the frequency signal for described buzzer according to described predetermined number and described detection time；
Comparing unit, is connected with described frequency cells, and for described frequency signal and predeterminated frequency scope being compared, if described frequency signal falls into described predeterminated frequency scope, then described buzzer is qualified, and otherwise, described buzzer is defective.
Wherein in an embodiment, described decision circuitry also includes:
Output input block, is connected with described comparing unit, for exporting the comparative result of described comparing unit, is additionally operable to described predetermined number and described predeterminated frequency scope that receiving terminal apparatus transmits.
Wherein in an embodiment, described decision circuitry also includes:
Memory element, is connected with described output input block, for storing described predetermined number and the described predeterminated frequency scope that described output input block receives.
The beneficial effects of the utility model include:
The detecting device of above-mentioned buzzer, the acoustical signal of its collection is converted to the signal of telecommunication by acoustic-electric change-over circuit, testing circuit obtains the frequency signal of buzzer according to the signal of telecommunication, and judge whether this frequency signal falls into predeterminated frequency scope, thus whether detect buzzer qualified, it is effective avoids erroneous judgement and the detection leakage phenomenon that artificial monitoring buzzer causes, realize the rapid automatized detection of buzzer, it is effectively improved the detection efficiency of buzzer, alleviate the labor intensity of staff, simultaneously, it can also detect the sound of buzzer of different coding mainboard and different model, realize different coding mainboard and the automatic switchover of different model buzzer sound detection, integrate with to Aulomatizeted Detect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the detecting device of the buzzer in an embodiment；
Fig. 2 is the structural representation of the detecting device of the buzzer in another embodiment；
Fig. 3 is the structural representation that the signal in the detecting device of the buzzer in an embodiment arranges amplifying circuit；
Fig. 4 is the structural representation of the decision circuitry in the detecting device of the buzzer in an embodiment；
Fig. 5 is the circuit diagram of the buzzer detecting device in a specific embodiment.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the detecting device of this utility model buzzer is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain this utility model, be not used to limit this utility model.
In one embodiment, as shown in Figure 1, it is provided that the detecting device of a kind of buzzer, including: acoustic-electric change-over circuit 100, for gathering the acoustical signal of buzzer, and acoustical signal is converted to the signal of telecommunication.Testing circuit 200, is connected with acoustic-electric change-over circuit 100, for obtaining the frequency signal of buzzer according to the signal of telecommunication, and detects whether frequency signal falls within the scope of predeterminated frequency, if so, then judges that buzzer is qualified, otherwise, then judges that buzzer is defective.
In the present embodiment, acoustic-electric change-over circuit 100 gathers the acoustical signal of buzzer, and acoustical signal is converted to the signal of telecommunication, such as, acoustical signal is converted to voltage signal, testing circuit 200 obtains the frequency signal of buzzer according to voltage signal, and it is whether qualified with the relation of predeterminated frequency scope detection buzzer according to frequency signal, such as, it is judged that whether frequency signal falls into predeterminated frequency scope, if, then judge that buzzer is qualified, otherwise, then judge that buzzer is defective, thus reaching automatically quickly to detect the purpose of buzzer.It artificial monitors the mode judging that whether buzzer is qualified relative to traditional, it is possible to be prevented effectively from the erroneous judgement and the detection leakage phenomenon that manually participate in causing, and improves the checkability of product, alleviates the labor intensity of reviewer.
Wherein, acoustic-electric change-over circuit 100 is MIC (mike, Microphone).Buzzer in the present embodiment is arranged on the coding mainboard of air-conditioning, and the detecting device in the present embodiment is for detecting the buzzer being arranged on air-conditioning mainboard.
In one embodiment, referring to Fig. 2, testing circuit 200 includes: signal arranges amplifying circuit 220, is connected with acoustic-electric change-over circuit 100, is used for amplifying the signal of telecommunication.Decision circuitry 240, arranges amplifying circuit 220 with signal and is connected, for obtaining the frequency signal of buzzer according to the signal of telecommunication after amplifying, and whether determination frequency signal falls within the scope of predeterminated frequency, if so, then judge that buzzer is qualified, otherwise, then judge that buzzer is defective.
Acoustical signal is converted to the faint signal of telecommunication (alternating voltage as faint in millivolt level) by acoustic-electric change-over circuit 100, the faint signal of telecommunication is likely in the transmission of circuit to disappear, and it is not easy to obtain the frequency signal of ultra-weak electronic signal, signal arranges the faint signal of telecommunication after acoustic-electric change-over circuit 100 is changed by amplifying circuit 220 and is amplified, with the signal of telecommunication being amplified, thus being relatively easy to obtain the frequency signal of the signal of telecommunication, also ensure that the signal of telecommunication will not disappear in the transmitting procedure of signal simultaneously.
Concrete, in one embodiment, referring to Fig. 3, signal arranges amplifying circuit 220 and includes collating elements 221 and amplifier element 222.Collating elements 221 is connected with acoustic-electric change-over circuit 100 and amplifier element 222 respectively, for the signal of telecommunication of acoustic-electric change-over circuit 100 output is arranged, and the signal of telecommunication after arranging is flowed to amplifier element 222.Amplifier element 222 is connected with collating elements 221, is used for amplifying the signal of telecommunication.Preferably, collating elements is coupling electric capacity C100, and coupling electric capacity C100 plays stopping direct current and leads to the arrangement effect of exchange, it is possible to be prevented effectively from the interference of DC voltage, is more easy to the frequency signal obtaining buzzer.Amplifier element 222 is audion Q1, and in the physical circuit shown in Fig. 5, the base stage of audion Q1 is connected with coupling electric capacity C100, and colelctor electrode is connected with decision circuitry 240, grounded emitter.
In one embodiment, testing circuit 200 also includes: digital signal conversion circuit 230, arrange amplifying circuit 220 with signal respectively and decision circuitry 240 is connected, it is digital signal for the converting electrical signal after signal is arranged the amplification that amplifying circuit 220 exports, and digital signal is flowed to decision circuitry 240.
It is analogue signal that signal arranges the signal of telecommunication of amplifying circuit 220 output, for the frequency signal of easier acquisition buzzer, arranges at signal and arranges digital signal conversion circuit 230 between amplifying circuit 220 and decision circuitry 240.Preferably, digital signal conversion circuit 230 includes comparator, signal is arranged the signal of telecommunication input comparator after the amplification that amplifying circuit 230 exports, the current potential of the current potential of positive input Yu inverting input is compared by comparator, thus the square-wave signal of outputting standard (square-wave signal such as 5V), and then square-wave signal is converted to digital signal.Wherein, comparator is U61 comparator.In the circuit diagram shown in Fig. 5, an input pin of U61 comparator is connected with the colelctor electrode of audion Q1, and an output pin of U61 comparator is connected with decision circuitry 240.
In one embodiment, referring to Fig. 4, decision circuitry 240 includes: timing unit 241, it is connected with digital signal conversion circuit 230, for when receiving the digital signal of digital signal conversion circuit 230 conveying, starting timing, and when receiving the digital signal of predetermined number, stop timing, it is thus achieved that receive the detection time that the digital signal of predetermined number uses.Frequency cells 242, is connected with timing unit 241, for obtaining the frequency signal for buzzer according to predetermined number and detection time.Comparing unit 243, is connected with frequency cells 242, and for frequency signal and predeterminated frequency scope being compared, if frequency signal falls into predeterminated frequency scope, then buzzer is qualified, and otherwise, buzzer is defective.
The sound sent due to each type of buzzer is different, when buzzer realizes normal function, its frequency sent, in a specific frequency range, therefore can send the frequency of sound whether in the frequency range of qualified buzzer according to buzzer, whether qualified just can obtain this buzzer.In this embodiment, timing unit 241 is for calculating the detection time T=T that the digital signal receiving predetermined number S usesStart-TTerminate, frequency cells 242 is for obtaining the frequency signal F=S/T of buzzer.Whether comparing unit 243 falls into predeterminated frequency scope [F for determination frequency signal F1, F2], if falling into, then judging that buzzer is qualified, otherwise, then judging that buzzer is defective.Above-mentioned judge buzzer whether qualified comparatively specific embodiment for realizing decision circuitry 240, describe comparatively concrete, but be not limited to this.Wherein, it is judged that circuit 240 is MCU ((MicrocontrollerUnit, micro-control unit).
In one embodiment, it is judged that circuit 240 also includes: output input block 244, it is connected with comparing unit 243, for exporting the comparative result of comparing unit 243, is additionally operable to predetermined number S and predeterminated frequency scope [F that receiving terminal apparatus transmits1, F2]。
Testing result is exported terminal unit by output input block 244, and by terminal unit, the testing result whether buzzer is qualified is shown to staff, so that staff takes appropriate measures, in this embodiment, staff only need to observe terminal unit just can know that whether buzzer is qualified, it is not necessary to manually monitors, greatly alleviates labor intensity, improve checkability, that effectively stops artificially monitors the erroneous judgement caused or detection leakage phenomenon simultaneously.Staff can also arrange the predetermined number of digital signal and the predeterminated frequency scope of buzzer by terminal unit, and by terminal unit, predetermined number and predeterminated frequency scope sends output input block 244 to.Wherein, terminal unit can be computer, HPC, mobile phone etc..
What deserves to be explained is, adopting serial port between terminal unit and output input block 244, the data wire reaching to use is few, saves the effect of communications cost.
In one embodiment, it is judged that circuit 240 also includes: memory element 245, it is connected with output input block 244, for storing predetermined number S and the described predeterminated frequency scope [F that output input block 244 receives1, F2]。
Memory element 245 stores the predeterminated frequency scope [F of predetermined number S and buzzer1, F2] the two parameter, in order to use when obtaining the frequency signal of buzzer.Wherein, predetermined number S and predeterminated frequency scope [F1, F2] acquisition of the two parameter can be caught by oscillograph and obtain, it is also possible to by detect first qualified after parameter corresponding to buzzer obtain.
What deserves to be explained is, predetermined number S and predeterminated frequency scope [F is being set1, F2] parameter time, the different coding mainboard predetermined number parameter corresponding with different model buzzer and predeterminated frequency range parameter can be set, and send memory element 245 to and preserve, the sound of different coding mainboard and different model buzzer is detected, owing to memory element 245 being preserved the relevant parameter that different coding mainboard is corresponding with different model buzzer, therefore can realize the quick change detection between different coding mainboard and different model buzzer, integrate with to automatic test demand direction.
Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics is absent from contradiction, all it is considered to be the scope that this specification is recorded.
Embodiment described above only have expressed several embodiments of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that, for the person of ordinary skill of the art, without departing from the concept of the premise utility, it is also possible to make some deformation and improvement, these broadly fall into protection domain of the present utility model.Therefore, the protection domain of this utility model patent should be as the criterion with claims.
Claims (9)
1. the detecting device of a buzzer, it is characterised in that including:
Acoustic-electric change-over circuit (100), for gathering the acoustical signal of buzzer, and is converted to the signal of telecommunication by described acoustical signal；
Testing circuit (200), it is connected with described acoustic-electric change-over circuit (100), for obtaining the frequency signal of described buzzer according to the described signal of telecommunication, and detect whether described frequency signal falls within the scope of predeterminated frequency, if, then judge that described buzzer is qualified, otherwise, then judge that described buzzer is defective；
Described testing circuit (200) including:
Signal arranges amplifying circuit (220), is connected with described acoustic-electric change-over circuit (100), is used for amplifying the described signal of telecommunication；
Decision circuitry (240), arrange amplifying circuit (220) with described signal to be connected, for obtaining the frequency signal of described buzzer according to the signal of telecommunication after amplifying, and judge whether described frequency signal falls within the scope of described predeterminated frequency, if, then judge that described buzzer is qualified, otherwise, then judge that described buzzer is defective.
2. the detecting device of buzzer according to claim 1, it is characterised in that described testing circuit (200) also includes:
Digital signal conversion circuit (230), arrange amplifying circuit (220) with described signal respectively and described decision circuitry (240) is connected, it is digital signal for described signal being arranged the converting electrical signal after amplifying circuit (220) the described amplification that exports, and described digital signal is flowed to described decision circuitry (240).
3. the detecting device of buzzer according to claim 1, it is characterised in that described signal arranges amplifying circuit (220) and including:
Amplifier element (222), is connected with described acoustic-electric change-over circuit (100), is used for amplifying the described signal of telecommunication.
4. the detecting device of buzzer according to claim 3, it is characterised in that described amplifier element (222) is audion.
5. the detecting device of buzzer according to claim 3, it is characterised in that described signal arranges amplifying circuit (220) and also includes:
Collating elements (221), it is connected with described acoustic-electric change-over circuit (100) and described amplifier element (222) respectively, the signal of telecommunication for described acoustic-electric change-over circuit (100) is exported arranges, and the signal of telecommunication after arranging is flowed to described amplifier element (222).
6. the detecting device of buzzer according to claim 5, it is characterised in that described collating elements (221) is coupling electric capacity.
7. the detecting device of buzzer according to claim 2, it is characterised in that described decision circuitry (240) including:
Timing unit (241), it is connected with described digital signal conversion circuit (230), for when receiving the described digital signal that described digital signal conversion circuit (230) is carried, start timing, and when receiving the described digital signal of predetermined number, stop timing, it is thus achieved that receive the detection time that the described digital signal of predetermined number uses；
Frequency cells (242), is connected with described timing unit (241), for obtaining the frequency signal for described buzzer according to described predetermined number and described detection time；
Comparing unit (243), is connected with described frequency cells (242), for described frequency signal and predeterminated frequency scope being compared, if described frequency signal falls into described predeterminated frequency scope, then described buzzer is qualified, and otherwise, described buzzer is defective.
8. the detecting device of buzzer according to claim 7, it is characterised in that described decision circuitry (240) also includes:
Output input block (244), is connected with described comparing unit (243), is used for exporting the comparative result of described comparing unit (243), is additionally operable to described predetermined number and described predeterminated frequency scope that receiving terminal apparatus transmits.
9. the detecting device of buzzer according to claim 8, it is characterised in that described decision circuitry (240) also includes:
Memory element (245), is connected with described output input block (244), is used for storing described predetermined number and the described predeterminated frequency scope that described output input block (244) receives.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521055143.9U CN205374622U (en) | 2015-12-16 | 2015-12-16 | Detection apparatus for buzzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521055143.9U CN205374622U (en) | 2015-12-16 | 2015-12-16 | Detection apparatus for buzzer |
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| CN205374622U true CN205374622U (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521055143.9U Expired - Fee Related CN205374622U (en) | 2015-12-16 | 2015-12-16 | Detection apparatus for buzzer |
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| CN (1) | CN205374622U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106802196A (en) * | 2017-01-16 | 2017-06-06 | 中国计量大学 | For the electronic thermometer buzzer sound sound detection device and method of automatic Verification |
| CN108846988A (en) * | 2018-06-21 | 2018-11-20 | 厦门致联科技有限公司 | A kind of intelligent smog alarm and its buzzer self checking method |
-
2015
- 2015-12-16 CN CN201521055143.9U patent/CN205374622U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106802196A (en) * | 2017-01-16 | 2017-06-06 | 中国计量大学 | For the electronic thermometer buzzer sound sound detection device and method of automatic Verification |
| CN106802196B (en) * | 2017-01-16 | 2023-07-18 | 中国计量大学 | Electronic thermometer buzzer sound detection device and method for automatic verification |
| CN108846988A (en) * | 2018-06-21 | 2018-11-20 | 厦门致联科技有限公司 | A kind of intelligent smog alarm and its buzzer self checking method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160706 Termination date: 20211216 |
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| CF01 | Termination of patent right due to non-payment of annual fee |