CN201083539Y - Portable digital sound and vibration analyzer - Google Patents
Portable digital sound and vibration analyzer Download PDFInfo
- Publication number
- CN201083539Y CN201083539Y CNU2007201130544U CN200720113054U CN201083539Y CN 201083539 Y CN201083539 Y CN 201083539Y CN U2007201130544 U CNU2007201130544 U CN U2007201130544U CN 200720113054 U CN200720113054 U CN 200720113054U CN 201083539 Y CN201083539 Y CN 201083539Y
- Authority
- CN
- China
- Prior art keywords
- module
- analyzer
- digital signal
- signal processing
- gain amplifier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The utility model discloses a portable digital sound and vibration analyzer, which adopts an ARM microprocessor module and a DSP digital signal processing module, wherein, the microprocessor module is connected with a gain amplifier, a digital signal processing module, a wireless sending module, a touch LED displayer, a keyboard and a network interface respectively, the gain amplifier is connected with an acoustic vibration sensor, a digital-to-analog conversion module is connected with the gain amplifier and the digital signal processing module respectively. The utility model has the advantages that: 1. the stability is good, the accuracy is high, the reliability is high, the analyzer is powerful and is designed in digitization, the volume is small, the power consumption is small, the manipulation is simple and the analyzer is portable; 2. the analyzer can measure the noise and the vibration as well as the gross measuring value and analyze the frequency spectrum; 3. the analyzer satisfies the international standard of IEC 61672-2002 and the national standard of GB 17181-1997; 4. the analyzer is designed in modularization in order to transplant or replace other products and can be evaluated according to related regulations; 5. the analyzer adopts the wireless data transmission technique to realize the real time wireless measurement and control of the analyzer.
Description
Technical field
The utility model relates to a kind of portable digital sound and vibration analyzer, is called for short the vibro-acoustic analysis instrument.Instrument internal adopts digital signal processing chip and forms based on little process chip (embedded chip) of RISC order set, is used for sound, comprises noise, and vibration analysis and detection.
Background technology
At present, traditional vibro-acoustic analysis instrument has two kinds, and a kind of is to adopt resistance, electric capacity, operational amplifier to form, and different centre frequencies and bandwidth are with different capacitance-resistance parameters.Owing to complex circuit, the wave filter of all centre frequencies all can not be made in the instrument, when carrying out spectrum analysis, also can only center frequency points of a center frequency points scan out, the speed of measuring is very low, can only measure steady-state noise and vibration.And the sound that the most of sound sources of occurring in nature are sent changes on frequency and intensity, limitation is arranged so this instrument shakes at sound aspect the spectrum analysis.Another kind is to adopt industrial computer or computing machine, is realized that with the way of software although this instrument has adopted digitized method for designing, the volume of instrument is big, and Heavy Weight should not carry.
Summary of the invention
The purpose of this utility model is that existing simulated sound vibration analysis instrument can not carry out spectrum analysis and the numerical analysis instrument body is long-pending big in order to overcome, and deficiencies such as Heavy Weight provide a kind of portable digital sound and vibration analyzer.
Portable digital sound and vibration analyzer adopt ARM microprocessor module and DSP digital signal processing module, wherein wireless with gain amplifier respectively, the digital signal processing module of microprocessor module, wireless sending module, touch LCD display, keyboard and network interface are connected, gain amplifier is connected with the sound vibration sensor, and D/A converter module also is connected with digital signal processing module with gain amplifier respectively.
Described gain amplifier internal module annexation is that Logic control module is connected with Multiplexing module, gain switch serial ports control module respectively, Multiplexing module also is connected with the positive pole that the signal of transport and placing device is imported, and gain switch is connected with resistance adjustment module, transport and placing device and Logic control module respectively.
Described digital signal processing module annexation be digital signal processor respectively with host interface, external memory storage, flash memory, I2C interface, McBSP0, McBSP1.
The beneficial effects of the utility model: 1. good stability, precision height, reliability height, powerful, Design of digital, volume is little, low in energy consumption, simple to operate, portable; But 2. not only can measure noise but also measuring vibrations, and not only can measure total value but also can carry out spectrum analysis; 3. satisfy international standard IEC61672-2002 and standard GB 17181-1997; 4. adopt modular design, so that the transplanting of other products and renewal, and can identify by relevant rules; 5. adopt wireless data transmission technology, realize the real-time radio observing and controlling of instrument.
Description of drawings
Fig. 1 is portable digital sound and vibration analyzer circuit block diagram;
Fig. 2 is a gain amplification module circuit block diagram of the present utility model;
Fig. 3 is a signal processing module circuit block diagram of the present utility model;
Fig. 4 is a central processing module circuit block diagram of the present utility model;
Fig. 5 is a system software frame diagram of the present utility model;
Fig. 6 is an application software process flow diagram of the present utility model.
Embodiment
The technical scheme that its technical matters that solves the utility model adopts is
1. circuit design: circuitry is by microphone, prestage, high-order high-precision a/d converter, the high-precision DSP of low consumption, high speed embedded control chip, and touch type liquid crystal display etc. are partly formed.Functions such as the time weighted of noise and vibration signal, octave, third-octave filtering, 1/6 octave filtering, fast fourier transform, frequency weighted, detection all adopt digital signal processing to realize.
2. program composition: the shake major function of real-time analyzer of portable acoustic realizes by software, signal processing technology is the emphasis of current design, this designing requirement volume is little, low in energy consumption, can carry out real-time third-octave spectrum analysis in audio range, and this also is the difficult point in the design.Adopt advanced algorithm, reduce the time of computing, then can select the DSP than low velocity for use, the design of hardware is also simple relatively, and production cost is also low.
We have carried out software design, and IIR type digital filter is through after the normalization design, to the third-octave spectrum analysis, estimate that the processing speed of DSP will be at 20M bar/just passable more than second.
3. wireless data exchange:
Carry out the localization wireless data transmission in conjunction with the GSM chip, the walkaway system development can detect entire city or regional noise situations.
4. product shape design: adopt the hommization exterior design, comprise the liquid crystal display interface, tactile keyboard, the design of bulk shape etc.;
5. modularized circuit design: integrated circuit adopts modular design, is beneficial to reduce electrical noise and reduces power consumption, also helps Product Renewal, and adopts the operation of the embedded chip of low-power consumption as central processing unit control entire circuit.
6. product detects: will carry out product with international standard IEC61672-2002 and detect, and be beneficial to products export.
As shown in Figure 1, portable digital sound and vibration analyzer adopt ARM microprocessor module and DSP digital signal processing module, wherein wireless with gain amplifier respectively, the digital signal processing module of microprocessor module, wireless sending module, touch LCD display, keyboard and network interface are connected, gain amplifier is connected with the sound vibration sensor, and D/A converter module also is connected with digital signal processing module with gain amplifier respectively.
The sound vibration sensor links to each other with gain amplifier, and sonic transducer is converted to analog electrical signal with sound and vibration signal, by gain amplifier analog electrical signal is carried out amplitude adjusted.Gain amplifier is connected with high-speed figure/mimic channel, is the 32-bit number signal with analog signal conversion.Microprocessor based on the RISC order set is connected with gain amplifier with the control magnification.High-speed figure/mimic channel sends digital signal to the digital signal processing mould and connects, digital signal processing chip is connected with little process chip based on the RISC order set, send the command request digital signal processor by little process chip and carry out various feature operations, as the realization of F, S, I time weighted; Octave, third-octave design; The realization of fft analysis; A, C and Z weighted.
The touch very color LCD5 of giant-screen is connected the realization that shows F, S, I time weighted with little process chip; Octave, third-octave design; The realization of fft analysis; Results such as A, C and Z weighted.Radio receiving transmitting module is connected with little process chip, can result calculated be sent to server by wireless mode.The device that is untreated also can be connected with internet realizes that network connects.Move up and down about the startup of keyboard realization instrument, screen mouse.
As shown in Figure 2, gain amplifier internal module annexation is that Logic control module is connected with Multiplexing module, gain switch serial ports control module respectively, Multiplexing module also is connected with the positive pole that the signal of transport and placing device is imported, and gain switch is connected with resistance adjustment module, transport and placing device and Logic control module respectively.
Input links to each other with multiplexer with signal in the signal input, and multiplexer links to each other with logic controller, realizes the selection of signal and signal, and multiplexer output links to each other with amplifier+end, and amplifier-end links to each other with gain switch and realizes resistance R
FWith R
GVariation.The gain coefficient control that the coefficient of gain switch links to each other with logic control and realizes 8 kinds of selections.The control of the input end of logic switch and serial ports links to each other, and the serial ports control line links to each other with microprocessor module among Fig. 1.The supply voltage of amplifier is+5 volts, an end ground connection of amplifier.R
GA termination reference voltage, its size can (0～2V) changes according to actual conditions.The output terminal of amplifier is connected with analog to digital conversion among Fig. 1.The various digital processings of digital signal processing realization sound Vibration Meter device comprise the realization as F, S, I time weighted; Octave, third-octave design; The realization of fft analysis; A, C and Z weighted.Wherein the analog to digital conversion control port links to each other with digital signal processing by I2C among Fig. 1, it is done the time spent and realizes analog-to-digital control, the analog-digital conversion data port is by also linking to each other with digital signal processing by serial ports McBSP0 among Fig. 1, and its effect is a transmission of digital signals.Microprocessor module among Fig. 1 is connected with digital signal processor by host interface, and its effect is that the data transmission that digital signal processing is intact arrives microprocessor module.Flash memory among Fig. 2 is a block system storer, mainly stores the system module of digital signal processing.External memory storage is a block system storer, mainly stores the application program module and the data of digital signal processing.
As shown in Figure 3, the digital signal processing module annexation is that digital signal processor is connected with host interface, external memory storage, flash memory, I2C interface, McBSP0, McBSP respectively.
As shown in Figure 4, the total central processing unit of microprocessor module, GPIO interface, I/O interface, network interface, external memory storage and flash memory are formed.The GPIO interface is mainly used in central processing unit and is connected with digital signal processing module, realizes the transmission of data.The I/O interface is mainly used in keyboard and LCD display module in the connection layout 1.Serial line interface is mainly used in the gain amplifier in the connection layout 2.Network interface adopts the RJ45 interface.Flash memory is a block system storer, mainly stores the system module of digital signal processing.External memory storage is a block system storer, mainly stores the application program module and the data of digital signal processing
As shown in Figure 5, the software architecture of microprocessor module comprises boot driver, operating system and driver, application program support storehouse and application program, wherein the major function of software architecture program, operating system and driver is control and the initial work of finishing hardware, is the bottom program that belongs to software program.Application library is that some general functions of providing for upper application software are to have accelerated the tempo of development of application software.Application software storehouse and application software all belong to upper layer software (applications).The application program on upper strata comprises graphic user interface journey and data processor.
The bottom program of digital signal processing comprises boot and driver, boot is mainly used to finish digital signal processing nuclear and carries out initial work, and driver is mainly used to finish control and the initial work for analog to digital conversion, external interface McBSP, I2C interface.Upper procedure is finished the shake function of signal Processing of sound jointly by application library and application program.
Communication between microprocessor module and the digital signal processing module provides support on totally 3 layers at hardware, bottom software and upper layer software (applications) respectively, they are to be connected by the host interface of digital signal processing and the GPIO interface of microprocessor module on the hardware, in the driver of bottom, provide for the control operation of corresponding hardware separately on the software, and the support below the upper layer software (applications) program layer can utilize is to the visit and the control of hardware resource.
As shown in Figure 6, function realization flow figure, at first program is to each functional module initialization, parameter is set then, need to determine the function of measurement and analysis, carry out function according to the parameter request that is provided with once more and realize that these functions have the frequency weighted to comprise: A, Z, C weighted, time weighted: comprise F weighted, S weighted, I weighted, spectrum analysis comprises: FFT, octave, third-octave, realize that by microprocessor module data presentation, data are printed and wireless data sends at last.
Claims (3)
1. portable digital sound and vibration analyzer, it is characterized in that adopting ARM microprocessor module and DSP digital signal processing module, wherein microprocessor module is connected with gain amplifier, digital signal processing module, wireless sending module, touch LCD display, keyboard and network interface respectively, gain amplifier is connected with the sound vibration sensor, and D/A converter module also is connected with digital signal processing module with gain amplifier respectively.
2. a kind of portable digital sound according to claim 1 and vibration analyzer, it is characterized in that described gain amplifier internal module annexation is that Logic control module is connected with Multiplexing module, gain switch serial ports control module respectively, Multiplexing module also is connected with the positive pole that the signal of transport and placing device is imported, and gain switch is connected with resistance adjustment module, transport and placing device and Logic control module respectively.
3. a kind of portable digital sound according to claim 1 and vibration analyzer is characterized in that described digital signal processing module annexation is that digital signal processor is connected with host interface, external memory storage, flash memory, I2C interface, McBSP0, McBSP respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201130544U CN201083539Y (en) | 2007-08-10 | 2007-08-10 | Portable digital sound and vibration analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201130544U CN201083539Y (en) | 2007-08-10 | 2007-08-10 | Portable digital sound and vibration analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201083539Y true CN201083539Y (en) | 2008-07-09 |
Family
ID=39626006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201130544U Expired - Fee Related CN201083539Y (en) | 2007-08-10 | 2007-08-10 | Portable digital sound and vibration analyzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201083539Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103983349A (en) * | 2014-06-06 | 2014-08-13 | 武汉科技大学 | Portable fault diagnosis apparatus used for low-speed heavy-load machinery |
| CN105334460A (en) * | 2015-11-27 | 2016-02-17 | 浙江大学城市学院 | Machine running state online monitoring analysis system based on noise and vibration analysis |
| CN106441555A (en) * | 2016-11-04 | 2017-02-22 | 恒信大友（北京）科技有限公司 | High-performance dynamic characteristic tester for high-speed motion member |
| CN107782542A (en) * | 2017-09-26 | 2018-03-09 | 国网江西省电力公司电力科学研究院 | A kind of wireless frequency measuring device of steam turbine blade |
| CN107894280A (en) * | 2017-11-20 | 2018-04-10 | 上海裕达实业有限公司 | Hand-held vibration noise measuring instrument and its vibration noise measuring method |
| CN109900792A (en) * | 2019-04-13 | 2019-06-18 | 盐城师范学院 | Construction wall material judgment means based on PIC embedded chip |
| CN111710347A (en) * | 2020-04-24 | 2020-09-25 | 中科新悦（苏州）科技有限公司 | Audio data analysis method, electronic device and storage medium |
| CN112461292A (en) * | 2020-11-16 | 2021-03-09 | 北京航天情报与信息研究所 | Library wiring monitoring method |
-
2007
- 2007-08-10 CN CNU2007201130544U patent/CN201083539Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103983349B (en) * | 2014-06-06 | 2016-05-25 | 武汉科技大学 | A kind of portable fault diagnosis tester for low-speed heave-load machinery |
| CN103983349A (en) * | 2014-06-06 | 2014-08-13 | 武汉科技大学 | Portable fault diagnosis apparatus used for low-speed heavy-load machinery |
| CN105334460B (en) * | 2015-11-27 | 2018-04-17 | 浙江大学城市学院 | State of runtime machine based on noise and vibration analysis monitors analysis system on-line |
| CN105334460A (en) * | 2015-11-27 | 2016-02-17 | 浙江大学城市学院 | Machine running state online monitoring analysis system based on noise and vibration analysis |
| CN106441555A (en) * | 2016-11-04 | 2017-02-22 | 恒信大友（北京）科技有限公司 | High-performance dynamic characteristic tester for high-speed motion member |
| CN107782542A (en) * | 2017-09-26 | 2018-03-09 | 国网江西省电力公司电力科学研究院 | A kind of wireless frequency measuring device of steam turbine blade |
| CN107782542B (en) * | 2017-09-26 | 2022-05-10 | 国网江西省电力公司电力科学研究院 | Wireless frequency measurement device for steam turbine moving blade |
| CN107894280A (en) * | 2017-11-20 | 2018-04-10 | 上海裕达实业有限公司 | Hand-held vibration noise measuring instrument and its vibration noise measuring method |
| CN109900792A (en) * | 2019-04-13 | 2019-06-18 | 盐城师范学院 | Construction wall material judgment means based on PIC embedded chip |
| CN109900792B (en) * | 2019-04-13 | 2024-04-26 | 盐城师范学院 | PIC embedded chip-based building wall material judging device |
| CN111710347A (en) * | 2020-04-24 | 2020-09-25 | 中科新悦（苏州）科技有限公司 | Audio data analysis method, electronic device and storage medium |
| CN111710347B (en) * | 2020-04-24 | 2023-12-05 | 中科新悦（苏州）科技有限公司 | Audio data analysis method, electronic device and storage medium |
| CN112461292A (en) * | 2020-11-16 | 2021-03-09 | 北京航天情报与信息研究所 | Library wiring monitoring method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201083539Y (en) | Portable digital sound and vibration analyzer | |
| CN106020559B (en) | Pressure sensitive detection device, electronic equipment and touch display screen | |
| CN101701880B (en) | Embedded health monitoring system for active and passive structure of aeroplane | |
| CN201569554U (en) | Integrated modality analyzer | |
| CN103809824A (en) | Touch sensing system and method of controlling power consumption thereof | |
| CN205898894U (en) | Digital storage sweep generator | |
| CN203949716U (en) | A kind of digital weighing sensor | |
| CN109443390A (en) | A kind of Together, digital gyroscope phase delay test macro | |
| CN114781766B (en) | Hydrological information prediction method, device, equipment and storage medium for hydrological site | |
| CN202886567U (en) | Special motor test device based on networked virtual instrument | |
| CN203069733U (en) | A vibration-detection-based partial discharging point positioning device used for GIS tests | |
| CN102853888A (en) | Multifunctional high-precision weighing system based on virtual technology | |
| CN202714850U (en) | Automatic verification machine for electrocardiograph | |
| CN102590335B (en) | Based on embedded electronic nose test macro and the method for testing of SAW sensor | |
| CN102346029B (en) | Device for detecting observing angle of overhead line sag and control method thereof | |
| CN103598891B (en) | Portable programmable multichannel psychoacoustics audiometer | |
| CN109040938A (en) | A kind of the electricity performance measurement analyzer and management platform of portable acoustic transducer | |
| CN111780862A (en) | Very low frequency self-contained piezoelectric hydrophone | |
| CN209822276U (en) | Automatic metrological verification system of audio analysis instrument | |
| CN203261301U (en) | AD9850-based signal source system | |
| CN109870231B (en) | Automatic metering verification system and identification algorithm for vibration measuring instrument | |
| CN106405357B (en) | A kind of extra-high voltage electric transmission and transformation equipment DC partial discharge test macro and test method | |
| CN203178731U (en) | Portable electric energy meter calibration master control system | |
| CN202420666U (en) | Sound level meter | |
| CN110068438A (en) | A kind of nuclear power engineering structure autoexcitation Gernral Check-up monitoring data acquisition device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080709 Termination date: 20110810 |