CN108180985A - A kind of sound level meter calibrating installation automatic control system - Google Patents
A kind of sound level meter calibrating installation automatic control system Download PDFInfo
- Publication number
- CN108180985A CN108180985A CN201810069225.0A CN201810069225A CN108180985A CN 108180985 A CN108180985 A CN 108180985A CN 201810069225 A CN201810069225 A CN 201810069225A CN 108180985 A CN108180985 A CN 108180985A
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- level meter
- sound
- sound level
- host computer
- sound source
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The present invention provides a kind of sound level meter calibrating installation automatic control system, including：Sound level meter stent, three axis Position Control platforms, camera bracket, camera, laser ranging module, sound source stent, positioner, sound analyzer, host computer；The three axis Position Controls stage+module is on sound level meter stent, in silencer box；Three axis Position Control platforms are used to place tested sound level meter；Three axis Position Control platforms connect host computer by positioner；Camera is mounted on by camera bracket in silencer box；Camera connects host computer；Sound source stent is set in silencer box, in front of sound level meter stent；For installation sound source and laser ranging module successively on sound source stent；The laser ranging module connects host computer；The sound source connects sound analyzer；Sound analyzer connects host computer；The present invention can realize the automatic adjustment of sound level meter front end microphone and sound source distance and the auto-focusing of grade meter front end microphone and Sound Source Center position.
Description
Technical field
The present invention relates to a kind of sound level meter calibrating installation, especially a kind of sound level meter calibrating installation automatic control system.
Background technology
Original sound level meter calibrating installation control system has the following problems：Since the measuring environment of silencer box is more special,
Installation and adjusting to sound level meter is excessively complicated, extremely inconvenient, and sound level meter front end microphone and the distance of Sound Source Center position need
It to adjust repeatedly manually, range error is uncontrollable.Original device can not ensure that sound level meter front end microphone being capable of face sound simultaneously
Source center only judges whether it focuses by human eye, and there are larger artificial subjective judgement errors.
Original camera can only play the role of display, it is impossible to the automatic measurement data for reading tested sound level meter and showing.
Invention content
It is an object of the present invention to overcome the shortcomings of the prior art and provide a kind of automations of sound level meter calibrating installation
Control system, can realize sound level meter front end microphone and sound source distance automatic adjustment and sound level meter front end microphone with
The auto-focusing of Sound Source Center position, and tested sound level meter measurement data can be read automatically.The technical solution adopted by the present invention
It is：
A kind of sound level meter calibrating installation automatic control system, including：
Sound level meter stent, three axis Position Control platforms, camera bracket, camera, laser ranging module, sound source stent, position
Controller, sound analyzer, host computer；
The three axis Position Controls stage+module is on sound level meter stent, in silencer box；Three axis Position Control platforms are used for
Place tested sound level meter；Three axis Position Control platforms are controlled by positioner；Three axis Position Control platforms are controlled by position
Device connects host computer；
Camera is mounted on by camera bracket in silencer box, above tested sound level meter；Camera connects host computer；
Sound source stent is set in silencer box, in front of sound level meter stent；Installation sound source successively is used on sound source stent and is swashed
Ligh-ranging module；
The laser ranging module connects host computer；The sound source connects sound analyzer；Sound analyzer connects host computer；Sound analysis
Instrument is used to provide the excitation electric signal of sound source and obtains a standard sound level signal of sound source, and feed back to host computer.
Further, under the control that three axis Position Control platforms can be controlled in position, in tri- directions of X, Y, Z into line position
It moves.
Further, camera use automatic focusing camera, can auto-focusing be detected the measurement number that sound level meter is shown
According to.
Further, host computer uses computer, is mounted with calibrating control software and image recognition software thereon.
Further, the automatic positioning method of the sound level meter calibrating installation automatic control system is：
Host computer operation calibrating control software；Three axis Position Control platforms move in the Y-axis direction first, and calibrating control software is certainly
The dynamic distance D for reading laser ranging module and measuring1, find distance D1Minimum value determines Y-axis coordinate points Y1；Then, three shaft position control
Platform processed returns to Y1Coordinate points, then move left and right in the X-axis direction, calibrating control software reads laser ranging module measurement automatically
Distance D2, find distance D2Minimum value determine X-axis coordinate points X1；Then, three axis Position Control platforms return to X1Coordinate points,
Adjust automatically Z axis coordinate Z in the Z-axis direction again1, make Z1=1m；Due to the laser beam and Sound Source Center of laser ranging module transmitting
The distance d of position for fixation can measured value, so after the focusing of laser beam and sound level meter microphone and roll adjustment is realized, adjust three axis
Position control platform makes sound level meter dropping distance d in the Y direction, is achieved that pair of Sound Source Center position and sound level meter microphone
Burnt and roll adjustment.
Advantages of the present invention：The present invention can realize sound level meter front end microphone and sound source distance automatic adjustment and
Grade meter front end microphone and the auto-focusing of Sound Source Center position, and tested sound level meter measurement data can be read automatically, in real time
The electronics original record of unit is imported, reaches slitless connection, whole process reduces artificial subjectivity operation and record, to reach
The accuracy of measurement, convenience, intelligence.
Description of the drawings
Fig. 1 is the structure composition schematic diagram of the present invention.
Specific embodiment
With reference to specific drawings and examples, the invention will be further described.
As shown in Figure 1, a kind of sound level meter calibrating installation automatic control system proposed by the present invention, including：
Sound level meter stent 1, three axis Position Control platforms 2, camera bracket 3, camera 4, laser ranging module 5, sound source stent
6th, positioner 7, sound analyzer 8, host computer 9；
The three axis Position Controls platform 2 is mounted on sound level meter stent 1, in silencer box 10；Three axis Position Control platforms 2
For placing tested sound level meter 11；Three axis Position Control platforms 2 can be under the control of positioner 7, in X（It is horizontal）, Y
（Vertically）And Z（It is front and rear）Three direction movements；Three axis Position Control platforms 2 connect host computer 9 by positioner 7；It is upper
Machine 9 uses computer, is mounted with calibrating control software and image recognition software thereon；A1, a2, a3, a4 illustrate cable in Fig. 1
Connection relation；When tested sound level meter 11 is mounted on three axis Position Control platforms 2,11 front end microphone 1101 of sound level meter is before
Side；
Camera 4 is mounted on by camera bracket 3 in silencer box 10, above tested sound level meter 11；In the connection of camera 4
Position machine 9；Camera 4 use automatic focusing camera, can auto-focusing be detected sound level meter 11 display measurement data；
Sound source stent 6 is set in silencer box 10, positioned at 1 front of sound level meter stent；It is used to that sound source be installed successively on sound source stent 6
12 and laser ranging module 5；
The laser ranging module 5 connects host computer 9；The sound source 12 connects sound analyzer 8；Sound analyzer 8 connects host computer
9；Sound analyzer 8 is used to provide the excitation electric signal of sound source 12 and by a standard wheat at 12 center 1m of sound source
Gram wind, obtains a standard sound level signal of sound source 12, and feeds back to host computer 9；Before sound level meter calibrating is carried out, can first it make
A standard sound level signal of sound source 12 is obtained with standard microphone；
Host computer 9 controls three shaft positions by reading the distance measurement data of laser ranging module 5 by positioner 7
Control platform 2 is moved in the enterprising line position in tri- directions of X, Y, Z, and the laser beam projection emitted so as to fulfill laser ranging module 5 is in quilt
It examines on 11 microphone 1101 of sound level meter, and is 1m by microphone 1101 and the distance controlling of sound source 12.In verification process, by upper
Position machine sends control instruction to positioner 7, and positioner 7 drives the stepper motor on three axis Position Control platforms 2 to move
Make, so as to which microphone 1101 and 12 center of sound source are adjusted and be focused into row distance.
Tested sound level meter 11 in operation, is placed on three by the sound level meter calibrating installation automatic control system first
On axis Position Control platform 2, initialized location, the operation calibrating control software of host computer 9 are set, operation " automatic positioning " is pressed
Button, wherein X represent horizontal direction, and Y represents vertical direction, and Z represents longitudinal separation；Three axis Position Control platforms 2 are first in Y-axis side
It moves up, calibrating control software reads the distance D of the measurement of laser ranging module 5 automatically1, find distance D1Minimum value determines Y-axis
Coordinate points Y1；Then, three axis Position Control platforms 2 return to Y1Coordinate points, then move left and right in the X-axis direction, examine and determine control software
The automatic distance D for reading laser ranging module and measuring2, find distance D2Minimum value determine X-axis coordinate points X1；Then, three axle position
It puts control platform 2 and returns to X1Coordinate points, then adjust automatically Z axis coordinate Z in the Z-axis direction1, make Z1=1m；Due to laser ranging mould
The laser beam of block transmitting and the distance d of the center of sound source can measured values for fixation（As shown in Figure 1）, so realizing laser beam
After focusing and roll adjustment with sound level meter microphone, three axis Position Control platforms 2 are adjusted, make the dropping distance in the Y direction of sound level meter 11
D, then be achieved that focusing and the roll adjustment of Sound Source Center position and sound level meter microphone.So far, sound level meter calibrating installation controls
System automatic positioning is completed.
According to the type of existing sound level meter, the liquid crystal digital display font of sound level meter can substantially be divided into segment code type and font formula, make
With existing image recognition technology, segment code type and font formula liquid crystal display data can automatically be read by structured analysis method；It is in addition, logical
OCR training library is crossed, can also read the liquid crystal display display data of font formula automatically.
Host computer is to the standard sound level signal of sound source and the tested sound level meter for identifying camera the image collected
11 display measurement data are compared, so that it may which sound level meter is examined and determine；
The tested sound level meter 11 that camera the image collected identifies is shown that measurement data is introduced directly into the electricity of unit simultaneously
Sub- original record prints certificate, reaches slitless connection.
It should be noted last that more than specific embodiment is merely illustrative of the technical solution of the present invention and unrestricted,
Although the present invention is described in detail with reference to example, it will be understood by those of ordinary skill in the art that, it can be to the present invention
Technical solution be modified or replaced equivalently, without departing from the spirit and scope of technical solution of the present invention, should all cover
In scope of the presently claimed invention.
Claims (5)
1. a kind of sound level meter calibrating installation automatic control system, which is characterized in that including：
Sound level meter stent (1), three axis Position Control platforms (2), camera bracket (3), camera (4), laser ranging module
(5), sound source stent (6), positioner (7), sound analyzer (8), host computer (9)；
The three axis Position Controls platform (2) is on sound level meter stent (1), in silencer box (10)；Three shaft position controls
Platform (2) processed is for placing tested sound level meter (11)；Three axis Position Control platforms (2) are controlled by positioner (7)；Three axle positions
It puts control platform (2) and host computer (9) is connected by positioner (7)；
Camera (4) is interior mounted on silencer box (10) by camera bracket (3), above tested sound level meter (11)；Camera shooting
Head (4) connection host computer (9)；
Sound source stent (6) is set in silencer box (10), in front of sound level meter stent (1)；It is used to pacify successively on sound source stent 6
Fill sound source (12) and laser ranging module (5)；
Laser ranging module (5) the connection host computer (9)；Sound source (12) the connection sound analyzer (8)；Sound analyzer (8)
Connect host computer (9)；Sound analyzer (8) is for providing the excitation electric signal of sound source (12) and obtain sound source one of (12)
Standard sound level signal, and feed back to host computer (9).
2. sound level meter calibrating installation automatic control system as described in claim 1, which is characterized in that
Three axis Position Control platforms (2) can carry out displacement under the control of positioner (7) in tri- directions of X, Y, Z.
3. sound level meter calibrating installation automatic control system as described in claim 1, which is characterized in that
Camera (4) using automatic focusing camera, can auto-focusing be detected the measurement data of sound level meter (11) display.
4. sound level meter calibrating installation automatic control system as described in claim 1, which is characterized in that
Host computer (9) is mounted with calibrating control software and image recognition software thereon using computer.
5. the sound level meter calibrating installation automatic control system as described in claim 1,2,3 or 4, which is characterized in that
The automatic positioning method of the sound level meter calibrating installation automatic control system is：
Host computer (9) operation calibrating control software；Three axis Position Control platforms (2) move in the Y-axis direction first, calibrating control
Software reads the distance D of laser ranging module (5) measurement automatically1, find distance D1Minimum value determines Y-axis coordinate points Y1；Then,
Three axis Position Control platforms (2) return to Y1Coordinate points, then move left and right in the X-axis direction, calibrating control software is read automatically to swash
The distance D that ligh-ranging module measures2, find distance D2Minimum value determine X-axis coordinate points X1；Then, three axis Position Control platform
(2) X is returned to1Coordinate points, then adjust automatically Z axis coordinate Z in the Z-axis direction1, make Z1=1m；Due to laser ranging module transmitting
The distance d of laser beam and Sound Source Center position for fixation can measured value, so in the focusing for realizing laser beam and sound level meter microphone
After roll adjustment, three axis Position Control platforms (2) are adjusted, makes sound level meter (11) dropping distance d in the Y direction, is achieved that in sound source
Focusing and roll adjustment of the heart position with sound level meter microphone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810069225.0A CN108180985B (en) | 2018-01-24 | 2018-01-24 | Automatic control system of sound level meter calibrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810069225.0A CN108180985B (en) | 2018-01-24 | 2018-01-24 | Automatic control system of sound level meter calibrating device |
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| Publication Number | Publication Date |
|---|---|
| CN108180985A true CN108180985A (en) | 2018-06-19 |
| CN108180985B CN108180985B (en) | 2023-06-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810069225.0A Active CN108180985B (en) | 2018-01-24 | 2018-01-24 | Automatic control system of sound level meter calibrating device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110672199A (en) * | 2019-11-22 | 2020-01-10 | 上海尚毅测控技术有限公司 | Automatic calibration device and method for sound level meter |
| CN111141383A (en) * | 2020-01-15 | 2020-05-12 | 莱茵技术（上海）有限公司 | Sound testing device for sounding toy |
| CN113108895A (en) * | 2021-04-06 | 2021-07-13 | 绍兴市质量技术监督检测院 | High-accuracy complete-elimination detection system |
| CN113959559A (en) * | 2021-11-08 | 2022-01-21 | 陕西省计量科学研究院 | Turntable of sound level meter calibrating device |
| CN117804520A (en) * | 2024-02-29 | 2024-04-02 | 杭州爱华仪器有限公司 | System for detecting acoustic imager and adjusting method |
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| CN110672199A (en) * | 2019-11-22 | 2020-01-10 | 上海尚毅测控技术有限公司 | Automatic calibration device and method for sound level meter |
| CN111141383A (en) * | 2020-01-15 | 2020-05-12 | 莱茵技术（上海）有限公司 | Sound testing device for sounding toy |
| CN113108895A (en) * | 2021-04-06 | 2021-07-13 | 绍兴市质量技术监督检测院 | High-accuracy complete-elimination detection system |
| CN113959559A (en) * | 2021-11-08 | 2022-01-21 | 陕西省计量科学研究院 | Turntable of sound level meter calibrating device |
| CN117804520A (en) * | 2024-02-29 | 2024-04-02 | 杭州爱华仪器有限公司 | System for detecting acoustic imager and adjusting method |
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| Publication number | Publication date |
|---|---|
| CN108180985B (en) | 2023-06-27 |
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