CN206019836U - A kind of acoustic measurement system - Google Patents
A kind of acoustic measurement system Download PDFInfo
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- CN206019836U CN206019836U CN201620852043.7U CN201620852043U CN206019836U CN 206019836 U CN206019836 U CN 206019836U CN 201620852043 U CN201620852043 U CN 201620852043U CN 206019836 U CN206019836 U CN 206019836U
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- 238000005259 measurement Methods 0.000 title claims abstract description 84
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- 238000004891 communication Methods 0.000 claims abstract description 10
- 230000010355 oscillation Effects 0.000 claims abstract description 8
- 230000008569 process Effects 0.000 claims description 10
- 238000012360 testing method Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 3
- 230000005055 memory storage Effects 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 abstract description 11
- 230000006870 function Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000003993 interaction Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
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- 238000004364 calculation method Methods 0.000 description 2
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- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model provides a kind of acoustic measurement system, is related to acoustic measuring technique field.The system includes acoustic measurement instrument and the mobile terminal with the communication connection of acoustic measurement instrument, wherein：Acoustic measurement instrument is included for MEMS microphone module, clock oscillation circuit, signal operation processor, the first data wireless transport module and power management module, wherein clock oscillation circuit, MEMS microphone module, signal operation processor and the first data wireless transport module are electrically connected with successively, and signal operation processor is also electrically connected with power management module；Mobile terminal includes the second data wireless transport module, high-performance processor and the second display module being electrically connected with successively.The utility model can reduce the cost of acoustic measurement instrument, simplify the circuit structure of acoustic measurement instrument, and also can realize acoustic measurement remote monitoring.
Description
Technical field
The utility model belongs to acoustic measuring technique field, more particularly to a kind of acoustic measurement system.
Background technology
Microphone currently used for laboratory and high accuracy acoustic measuring instrument is usually used condenser microphone, and electric capacity is passed
Sound device is a kind of top-quality at present microphone, but the capacitance very little due to condenser microphone, therefore generally need logical
Crossing voice signal of the preamplifier to collecting carries out impedance conversion process, and which needs high input impedance, to electricity
Source requirement is higher, needs to cause the cost of acoustic measuring instrument high using extra power-supplying circuit, and circuit structure
Extremely complex.Additionally, existing acoustic measuring instrument is needed by staff's field control, and measure the result for obtaining and be only capable of
It is shown on the display screen of itself, it is impossible to realize remote monitoring.
Utility model content
The purpose of the utility model embodiment is to provide a kind of acoustic measurement system, it is intended to solve existing acoustic measurement
Instrument cost is high, and circuit structure is complicated and problem that cannot realize remote monitoring.
The utility model embodiment is achieved in that a kind of acoustic measurement system, including：Acoustic measurement instrument and with described
The mobile terminal of acoustic measurement instrument communication connection, wherein：
The acoustic measurement instrument is included for gathering test environment voice signal, and the voice signal is converted to numeral
The MEMS microphone module of signal, for providing the clock oscillation circuit of clock signal, be used for for the MEMS microphone module
Signal operation processor that the data signal is pre-processed, be used for by pretreated data signal send to mobile eventually
The first data wireless transport module and the power management module for providing supply voltage at end, the clock oscillation circuit,
The MEMS microphone module, the signal operation processor and the first data wireless transport module electrically connect successively
Connect, the signal operation processor is also electrically connected with the power management module；
The mobile terminal is included for receiving the pretreated numeral that the first data wireless transport module sends
Second data wireless transport module of signal, it is used for being analyzed the data signal process obtaining every acoustics index
High-performance processor, for showing the second display module of every acoustics index, the second data wireless transport module,
The high-performance processor and second display module are electrically connected with successively.
On the basis of above-mentioned technical proposal, the MEMS microphone module is using being made up of multi-path digital MEMS microphone
Digital microphone array.
On the basis of above-mentioned technical proposal, the acoustic measurement instrument also includes being connected with the signal operation processor
, for showing the first display module of the data signal after pretreatment of the signal operation processor output.
On the basis of above-mentioned technical proposal, the acoustic measurement instrument also includes being connected with the signal operation processor
, set for exporting to process the data signal after pretreatment that the signal operation processor is exported to other external acoustics
Standby digital audio output interface.
On the basis of above-mentioned technical proposal, the acoustic measurement instrument also includes being connected with the signal operation processor
, for connecting outside updating apparatus, make the outside updating apparatus enter the program that the signal operation processor memory is stored up
The program firmware upgrade interface that row updates.
On the basis of above-mentioned technical proposal, the acoustic measurement instrument also includes being connected with the signal operation processor
, for connecting external calibration equipment, make external calibration equipment enter the data signal that the signal operation processor is received
The calibration interface of row correction.
On the basis of above-mentioned technical proposal, the acoustic measurement instrument also includes being connected with the signal operation processor
, for storing the data memory module of the data signal after signal operation processor is processed.
On the basis of above-mentioned technical proposal, the acoustic measurement instrument also includes being connected with the signal operation processor
, for the key control module for the manually operated control of survey crew.
On the basis of above-mentioned technical proposal, the power management module includes being connected with the signal operation processor
The charging circuit and the protection circuit being connected with the charging circuit of battery and battery connection.
On the basis of above-mentioned technical proposal, the power management module is also included for monitoring the electricity of the battery electric quantity
Source monitoring unit, the power supply supervision unit are wirelessly transferred with the charging circuit, the battery and first data respectively
Module connects.
A kind of acoustic measurement instrument for implementing the offer of the utility model embodiment has the advantages that：The utility model reality
Apply due to replacing traditional condenser microphone to gather the voice signal of test environment using MEMS microphone module in example, so as to
The requirement to input impedance and power supply can be reduced, without using extra supply of electric power, the cost of acoustic measurement instrument is reduced,
And simplify the structure of acoustic measurement instrument so that acoustic measurement instrument is lighter and handier, is easy to carry；Due to surveying in traditional acoustics
Amount instrument on the basis of increased the first data wireless transport module such that it is able to by the first data wireless transport module with
Outside mobile terminal carries out data interaction, it is achieved that remote monitoring function.
Description of the drawings
Fig. 1 is a kind of schematic block diagram of acoustic measurement system that the utility model embodiment is provided；
Fig. 2 is the product schematic diagram of acoustic measurement instrument in a kind of acoustic measurement system that the utility model embodiment is provided；
Fig. 3 is a kind of schematic block diagram of acoustic measurement system that the another embodiment of the utility model is provided.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to the utility model.It should be appreciated that specific embodiment described herein is only in order to explaining
The utility model, is not used to limit the utility model.
Fig. 1 is a kind of schematic block diagram of acoustic measurement system that the utility model embodiment is provided.For convenience of description
Illustrate only part related to the present embodiment.
Shown in Figure 1, a kind of acoustic measurement system that the present embodiment is provided includes：Acoustic measurement instrument 1 and with the sound
The mobile terminal 2 of the communication connection of measuring instrument 1 is learned, wherein：
The acoustic measurement instrument 1 is included for gathering test environment voice signal, and the voice signal is converted to number
The MEMS microphone module 11 of word signal, the clock oscillation circuit for being the MEMS microphone module 11 offer clock signal
12nd, be used for the data signal is pre-processed signal operation processor 13, be used for by pretreated data signal send out
Deliver to the first data wireless transport module 14 and the power management module 15 for providing supply voltage of mobile terminal 2, institute
State clock oscillation circuit 12, the MEMS microphone module 11, the signal operation processor 13 and first data without
Line transport module 14 is electrically connected with successively, and the signal operation processor 13 is also electrically connected with the power management module 15；
The mobile terminal 2 is included for receiving the pretreated number that the first data wireless transport module 14 sends
Second data wireless transport module 21 of word signal, be used for the data signal be analyzed process referred to obtaining every acoustics
Target high-performance processor 22, for showing the second display module 23 of every acoustics index, second data are wireless
Transport module 21, the high-performance processor 22 and second display module 23 are electrically connected with successively.
In the present embodiment, the MEMS microphone module 11 is using the digital wheat being made up of multi-path digital MEMS microphone
Gram wind array.
Implement in example one, the MEMS microphone module 11 can be adopted and is made up of 5 railway digital MEMS microphones
Digital microphone array, wherein, the distribution arrangement of five railway digital MEMS microphones is can be found in shown in Fig. 2.
Implement in example another, the MEMS microphone module 11 can be using being made up of multichannel MEMS microphone
The digital microphone array of matrix distribution spherical in shape.
In the present embodiment, MEMS microphone module is using the digital microphone array being made up of multi-path digital MEMS microphone,
Simultaneously can record on same time axle and observation sound field in space different dimensions can distributional pattern, carry out more smart
True measurement, it is to avoid the difference between multiple measurement information source.
In the present embodiment, the pretreatment that 13 pairs of data signals of the signal operation processor are carried out can specifically be wrapped
Include conventional weighted process, FFT calculation process and conventional filtering process etc., the algorithm routine used needed for these pretreatments
It is of the prior art identical, and in advance burning is in signal operation processor 13.Preferably, adopt in the present embodiment
The model ADSP21478 chip of signal operation processor 13.
In the present embodiment, the first data wireless transport module 14 and the second data wireless transport module 21 it
Between communication can include radio frequency, Bluetooth communication, wifi communication and 3G/4G communication in one or more.Excellent
Choosing, implement in example one, the first data wireless transport module 14 and the second data wireless transport module
21 be 4G modules, radio-frequency module, wifi module and bluetooth module, the side wireless communication between acoustic measurement instrument 1 and mobile terminal 2
Formula adopts any one mode of above-mentioned four kinds of radio communications according to distance.It should be noted that in the present embodiment, acoustics is surveyed
Amount instrument 1 can not only be measured by the first data wireless transport module 14 and digital data transmission after pretreatment is to shifting
Processed in dynamic terminal 2, but also the control that mobile terminal 2 sends can be received by the first data wireless transport module 14
Instruction, makes signal operation processor 13 control the various functions of acoustic measurement instrument 1 according to the control instruction, realizes remote monitoring
Function with remote sensing test.
Further, the acoustic measurement instrument 1 also includes being connected with the signal operation processor 13, for supplying measurement
The key control module 18 of the manually operated control of personnel.
In the present embodiment, acoustic measurement instrument 1 also includes that key control module 18, such user are remained able to manually
Operate acoustic measurement instrument 1 to carry out the acoustic measurement of environment.
Further, the power management module 15 include the battery 151 being connected with the signal operation processor 13 and
The charging circuit 152 of the connection of the battery 151 and the protection circuit 153 being connected with the charging circuit 152.
In the present embodiment, the protection circuit 153 is also connected with external charging power supply, for acoustic measurement instrument 1
In battery 151 when being charged, protect the circuit inside acoustic measurement instrument 1, it is to avoid when external power source breaks down, burn out sound
Learn the circuit inside measuring instrument 1.
Further, the acoustic measurement instrument 1 also includes being connected with the signal operation processor 13, for storing letter
Number arithmetic processor 13 process after data signal data memory module 17.
Further, the acoustic measurement instrument 1 also includes being connected with the signal operation processor 13, for showing
State the first display module 16 of the data signal after pretreatment of the output of signal operation processor 13.
In the present embodiment, pretreated data signal not only can be passed through first data transmission by acoustic measurement instrument 1
Module transfer to mobile terminal 2 carries out further data processing, but also can directly by pretreated data signal
Export and shown to the first display module 16.
Further, in the present embodiment, the high-performance processor 22 in the mobile terminal 2 is specifically for the sound
Learn measuring instrument 1 send data signal be analyzed process to obtain every acoustics index, wherein, the acoustics index include but
It is not limited to acoustic reverberation time, FFT, RTA, speech articulation, noise instruction and acoustic pressure index etc..
Above as can be seen that a kind of acoustic measurement system of the utility model embodiment offer is due to adopting MEMS microphone
Module replaces traditional condenser microphone to gather the voice signal of test environment such that it is able to reduce the complexity of Acquisition Circuit
Property, reduce the sampling difference between multiple sensors, without using extra supply of electric power, reduce the cost of acoustic measurement instrument,
And simplify the structure of acoustic measurement instrument so that acoustic measurement instrument is lighter and handier, is easy to carry；Due to surveying in traditional acoustics
Amount instrument on the basis of increased the first data wireless transport module such that it is able to by the first data wireless transport module with
Outside mobile terminal carries out data interaction, it is achieved that the measurement function of remote monitoring.
Fig. 3 shows a kind of schematic block diagram of acoustic measurement system that another embodiment of the present invention is provided.For the ease of
Illustrate to illustrate only part related to the present embodiment.
Shown in Figure 3, relative to a upper embodiment, in the present embodiment, the acoustic measurement instrument 1 also include with described
The connection of signal operation processor 13, the data signal after pretreatment for exporting the signal operation processor 13 is defeated
Go out to the digital audio output interface 110 of other external acoustic processing equipments, for by the link of multiple acoustic measurement instrument 1, expanding
Exhibition sensor passage, measures while meeting more numbers of channels.
Further, in the present embodiment, the acoustic measurement instrument 1 also includes being connected with the signal operation processor 13
, for connecting outside updating apparatus, make the outside program of the updating apparatus to 13 memory storage of signal operation processor
The program firmware upgrade interface 19 being updated.
Wherein, outside updating apparatus can be by depositing in 19 detection signal arithmetic processor 13 of described program firmware upgrade interface
The version of the operation processing program of storage, and when the version of the operation processing program is relatively low, by described program firmware upgrade
Interface 19 updates the version of the operation processing program stored in the signal operation processor 13, to provide arithmetic processor 13
New calculation function.
Further, in the present embodiment, the acoustic measurement instrument 1 also includes being connected with the signal operation processor 13
, for connecting external calibration equipment, the data signal that makes external calibration equipment receive the signal operation processor 13
The calibration interface 111 being corrected.
Further, in the present embodiment, the power management module 15 is also included for monitoring 151 electricity of the battery
Power supply supervision unit 154, the power supply supervision unit 154 respectively with the charging circuit 152, the battery 151 and described
First data wireless transport module 14 connects.
Wherein, the electricity of the battery 151 for monitoring wirelessly can be passed by the power supply supervision unit 154 by the first data
Defeated module 14 is sent to outside mobile terminal 2 and is shown, enables 2 user of outside mobile terminal to obtain acoustic measurement instrument in real time
The information about power of 1 battery 151, to be charged to which in the not enough power supply of the battery 151 of acoustic measurement instrument 1 in time.
Above as can be seen that relative to a upper embodiment, a kind of acoustic measurement system that the present embodiment is provided can not only
Reduce the cost of acoustic measurement instrument, simplify the structure of acoustic measurement instrument so that acoustic measurement instrument is lighter and handier, is easy to carry,
Remote monitoring function is achieved, but also the information about power of itself can be uploaded to outside mobile terminal device in real time and shown
Show, make outside mobile phone users obtain the information about power of acoustic measurement instrument in real time；Additionally it is possible to pass through program firmware upgrade
The extension Measurement channel quantity such as interface, digital audio output interface and calibration interface simultaneously carries out interaction with other external equipments,
Faster, more accurately to obtain every acoustics index of test environment.
Preferred embodiment of the present utility model is the foregoing is only, not in order to limit the utility model, all at this
Any modification, equivalent and improvement that is made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (10)
1. a kind of acoustic measurement system, it is characterised in that include：Acoustic measurement instrument and with the acoustic measurement instrument communication connection
Mobile terminal, wherein：
The acoustic measurement instrument is included for gathering test environment voice signal, and the voice signal is converted to data signal
MEMS microphone module, for providing the clock oscillation circuit of clock signal for the MEMS microphone module, for institute
State signal operation processor that data signal pre-processed, for pretreated data signal is sent to mobile terminal
First data wireless transport module and the power management module for providing supply voltage, the clock oscillation circuit, described
MEMS microphone module, the signal operation processor and the first data wireless transport module are electrically connected with successively, institute
State signal operation processor to be also electrically connected with the power management module；
The mobile terminal is included for receiving the pretreated data signal that the first data wireless transport module sends
The second data wireless transport module, process to obtain the high property of every acoustics index for being analyzed the data signal
Can processor, for showing the second display module of every acoustics index, the second data wireless transport module, described
High-performance processor and second display module are electrically connected with successively.
2. acoustic measurement system as claimed in claim 1, it is characterised in that the MEMS microphone module is adopted by many ways
The digital microphone array of word MEMS microphone composition.
3. acoustic measurement system as claimed in claim 1, it is characterised in that the acoustic measurement instrument also includes and the signal
Arithmetic processor connection, for showing that the first of the data signal after pretreatment of the signal operation processor output shows
Show module.
4. acoustic measurement system as claimed in claim 1, it is characterised in that the acoustic measurement instrument also includes and the signal
Arithmetic processor connection, for exporting the data signal after pretreatment that the signal operation processor is exported to other
The digital audio output interface of external acoustic processing equipment.
5. acoustic measurement system as claimed in claim 1, it is characterised in that the acoustic measurement instrument also includes and the signal
Arithmetic processor connection, for connecting outside updating apparatus, the outside updating apparatus are made to the signal operation processor
The program firmware upgrade interface that the program of memory storage is updated.
6. acoustic measurement system as claimed in claim 1, it is characterised in that the acoustic measurement instrument also includes and the signal
Arithmetic processor connection, for connecting external calibration equipment, make external calibration equipment receive the signal operation processor
To the calibration interface that is corrected of data signal.
7. acoustics examining system as claimed in claim 1, it is characterised in that the acoustic measurement instrument also includes and signal fortune
Processor connection is calculated, for storing the data memory module of the data signal after signal operation processor is processed.
8. acoustic measurement system as claimed in claim 1, it is characterised in that the acoustic measurement instrument also includes and the signal
Arithmetic processor connection, for the key control module for the manually operated control of survey crew.
9. acoustic measurement system as claimed in claim 1, it is characterised in that the power management module includes and the signal
The battery of arithmetic processor connection and the charging circuit and the protection electricity being connected with the charging circuit of battery connection
Road.
10. acoustic measurement system as claimed in claim 9, it is characterised in that the power management module is also included for supervising
Survey the power supply supervision unit of the battery electric quantity, the power supply supervision unit respectively with the charging circuit, the battery and institute
State the connection of the first data wireless transport module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620852043.7U CN206019836U (en) | 2016-08-08 | 2016-08-08 | A kind of acoustic measurement system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620852043.7U CN206019836U (en) | 2016-08-08 | 2016-08-08 | A kind of acoustic measurement system |
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| CN206019836U true CN206019836U (en) | 2017-03-15 |
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| CN201620852043.7U Expired - Fee Related CN206019836U (en) | 2016-08-08 | 2016-08-08 | A kind of acoustic measurement system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109323758A (en) * | 2018-11-19 | 2019-02-12 | 国网四川省电力公司电力科学研究院 | It can self-alignment substation's factory outside noise continuous monitor system |
| CN110631687A (en) * | 2019-09-29 | 2019-12-31 | 苏州思必驰信息科技有限公司 | Wireless vibration collector |
-
2016
- 2016-08-08 CN CN201620852043.7U patent/CN206019836U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109323758A (en) * | 2018-11-19 | 2019-02-12 | 国网四川省电力公司电力科学研究院 | It can self-alignment substation's factory outside noise continuous monitor system |
| CN109323758B (en) * | 2018-11-19 | 2021-10-22 | 国网四川省电力公司电力科学研究院 | Self-calibrated substation boundary noise continuous monitoring system |
| CN110631687A (en) * | 2019-09-29 | 2019-12-31 | 苏州思必驰信息科技有限公司 | Wireless vibration collector |
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| TR01 | Transfer of patent right |
Effective date of registration: 20201014 Address after: 523000 Guangcheng Street Xingtang Community, Dongcheng West Road, Dongcheng City, Dongguan City, Guangdong Province Patentee after: DONGGUAN ZHONGGUANG COMMUNICATION TECHNOLOGY Co.,Ltd. Address before: 518000 Guangdong city of Shenzhen province Nanshan District Nantou Street Ma Liuzhou Industrial Zone Ming building Z602 Patentee before: Chen Gang |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230113 Address after: Room 2101, Unit 1, Building 6, Tian'an Digital City, No. 1, Huangjin Road, Nancheng Street, Dongguan, Guangdong 523000 Patentee after: Guangdong Huahan Intelligent Technology Co.,Ltd. Address before: 523000 room 402, 4th floor, office building, block a, city garden, No. 266, Dongcheng West Road, Xingtang community, Guancheng street, Dongguan City, Guangdong Province Patentee before: DONGGUAN ZHONGGUANG COMMUNICATION TECHNOLOGY Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170315 |