CN208768297U - Linear array sound equipment sound field detection system - Google Patents
Linear array sound equipment sound field detection system Download PDFInfo
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- CN208768297U CN208768297U CN201821444112.6U CN201821444112U CN208768297U CN 208768297 U CN208768297 U CN 208768297U CN 201821444112 U CN201821444112 U CN 201821444112U CN 208768297 U CN208768297 U CN 208768297U
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Abstract
The utility model relates to a kind of linear array sound equipment sound field detection system, which includes: unmanned fire balloon, unmanned fire balloon control device, audio detection device, positioning device and data processing equipment.Unmanned fire balloon is mechanically connected with audio detection device and positioning device respectively；Audio detection device is greater than the first pre-determined distance at a distance from the air bag of unmanned fire balloon.The transaudient direction of linear array sound equipment is upward.Unmanned fire balloon control device drives audio detection device and positioning device flight for controlling unmanned fire balloon, so that detection sound of the audio detection device in the sound field detection space of linear array sound equipment.Audio detection device sends audio detection data to data processing equipment.Positioning device detection location information is simultaneously sent to data processing equipment.Data processing equipment carries out data processing to audio detection data and location information, obtains the sound-filed simulation data of linear array sound equipment.Each side's sound wave reflection interference is excluded, more accurate sound field spatial distribution data is obtained.
Description
Technical field
The utility model relates to acoustic measurements and electronic communication field, more particularly to a kind of linear array sound equipment sound field detection system
System.
Background technique
In the research and development of linear array sound equipment and factory testing, production firm needs the sound field of the sounding to linear array sound equipment to examine
It surveys, guarantees the quality of product.Traditional sound field detection needs to carry out in anechoic room, and detection mode is two-dimentional point-to-point measurement,
Test point is set on ground before linear array sound equipment, the sound size that detection device detects each test point is carried by testing staff,
Obtain the two-dimensional acoustic field distributed data of linear array sound equipment.
During realization, inventor has found that at least there are the following problems in traditional sound field detection technique: sound wave is penetrated
It will do it reflection after on ground and wall, traditional linear array sound equipment sound field detection mode will receive the interference of sound wave reflection, cannot
The accurately distribution of sound field of reflection linear array sound equipment.
Utility model content
Based on this, it is necessary to for the problem of sound field testing result inaccuracy caused by sound wave reflection, provide a kind of linear array
Sound equipment sound field detection system.
On the one hand, the utility model embodiment provides a kind of linear array sound equipment sound field detection system, comprising: unmanned fire balloon,
Unmanned fire balloon control device, audio detection device, positioning device and data processing equipment；
Unmanned fire balloon is mechanically connected with audio detection device and positioning device respectively；Audio detection device and unmanned hot gas
The distance of the air bag of ball is greater than the first pre-determined distance；The transaudient direction of linear array sound equipment is upward；
Unmanned fire balloon control device drives audio detection device and positioning device flight for controlling unmanned fire balloon, with
Make detection sound of the audio detection device in the sound field detection space of linear array sound equipment；
Audio detection device sends audio detection data to data processing for detecting the sound in sound field detection space
Device；Positioning device, for detecting location information and being sent to data processing equipment；Data processing equipment, for being examined to audio
Measured data and location information carry out data processing, obtain the sound-filed simulation data of linear array sound equipment.
Data processing equipment and unmanned fire balloon are mechanically connected in one of the embodiments,；Data processing equipment difference
It is electrically connected with audio detection device and positioning device.
Audio detection device includes: microphone and audio conversion module in one of the embodiments,；
Microphone is electrically connected with audio conversion module, is transmitted for acquiring audio detection signal, and by audio detection signal
To audio conversion module；
Audio conversion module is electrically connected with data processing equipment, for audio detection signal to be converted to audio detection number
According to transmission audio detection data processing equipment.
It in one of the embodiments, further include RTK positioning datum module；Positioning device is that RTK positions flow module.
Unmanned fire balloon control device includes fire balloon traction rope in one of the embodiments, fire balloon traction rope
One end and unmanned fire balloon are mechanically connected.
The quantity of fire balloon traction rope is more in one of the embodiments,；One end of more fire balloon traction ropes point
It is not mechanically connected with the unmanned fire balloon.
Unmanned fire balloon control device includes Airborne Control Unit and ground remote controller in one of the embodiments,；
Airborne Control Unit is arranged on unmanned fire balloon, for receiving the mobile control letter of ground remote controller transmission
Number, it is mobile that unmanned fire balloon is controlled according to mobile control signal.
The value range of the first pre-determined distance is in 5m between 15m in one of the embodiments,.
The spacing distance of positioning device and microphone is within the scope of preset interval in one of the embodiments,.
Data processing equipment is single-chip microcontroller in one of the embodiments,.
Above-mentioned linear array sound equipment sound field detection system, the transaudient direction that linear array sound equipment is arranged are upward.And the unmanned hot gas of setting
The air bag of ball is greater than the first pre-determined distance at a distance from audio detection device.By unmanned fire balloon drive audio detection device and
Positioning device flight, acquisition sound field detect the audio detection signal everywhere in space, handle to obtain by data processing equipment
Sound-filed simulation data.Each side's sound wave reflection interference is eliminated, more accurate sound field spatial distribution data is obtained.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of linear array sound equipment sound field detection system in an embodiment；
Fig. 2 is the structural schematic diagram of linear array sound equipment sound field detection system in another embodiment；
Fig. 3 is the electrical connection module structural schematic diagram of linear array sound equipment sound field detection system in an embodiment；
Fig. 4 is the electrical connection module structural schematic diagram of linear array sound equipment sound field detection system in another embodiment；
Fig. 5 is the structural schematic diagram of linear array sound equipment sound field detection system in another embodiment.
Specific embodiment
The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model,
It states.The preferred embodiment of the utility model is given in attached drawing.But the utility model can come in many different forms in fact
It is existing, however it is not limited to embodiment described herein.On the contrary, purpose of providing these embodiments is makes public affairs to the utility model
It is more thorough and comprehensive to open content.
It should be noted that it can be directly to separately when an element is considered as " connection " another element
One element and it is in combination be integrated, or may be simultaneously present centering elements.Term as used herein " installation ", " one
End ", " other end " and similar statement are for illustrative purposes only.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein includes
Any and all combinations of one or more related listed items.
As shown in Figure 1, the utility model embodiment provides a kind of linear array sound equipment sound field detection system, comprising: unmanned hot gas
Ball 110, unmanned 120 (not shown) of fire balloon control device, audio detection device 130, positioning device 140 and data processing
Device 150.
Unmanned fire balloon 110 is mechanically connected with audio detection device 130 and positioning device 140 respectively；Audio detection device
130 are greater than the first pre-determined distance at a distance from the air bag of unmanned fire balloon 110.The transaudient direction of linear array sound equipment 60 is upward.
Unmanned fire balloon control device 120 drives audio detection device 130 and positioning for controlling unmanned fire balloon 110
Device 140 flies, so that detection sound of the audio detection device 130 in the sound field detection space of linear array sound equipment.
Audio detection device 130 is sent at audio detection data to data for detecting the sound in sound field detection space
Manage device 150；Positioning device 140, for detecting location information and being sent to data processing equipment 150；Data processing equipment
150, for carrying out data processing to audio detection data and location information, obtain the sound-filed simulation data of linear array sound equipment.
Wherein, unmanned fire balloon 110 includes air bag and the gondola being connected under air bag with air bag is arranged in, and is arranged in bladder port
There is burner, is equipped with fuel tank and fuel supply system in gondola.The sound field detection space of linear array sound equipment is one preset three
Dimension space.Before sound field detection, according to the transaudient direction of linear array sound equipment, three dimensional detection coordinate system is established, according to linear array sound equipment
Coordinate, set a three-dimensional space as linear array sound equipment sound field detect space.Location information indicates positioning device 140 three
Positioning coordinate in dimension detection coordinate system.The sound for the loudspeaker that transaudient direction, that is, linear array sound equipment of linear array sound equipment makes a sound is sent out
Direction out.
Specifically, audio detection device 130 and positioning device 140 pass through the gondola of bindiny mechanism and unmanned fire balloon 110
Bottom connection.In one embodiment, bindiny mechanism can be rope, and rope one end is fixed on gondola, secures on rope
Audio detection device 130 and positioning device 140.To reduce influence of the air bag of unmanned fire balloon 110 to audio detection, audio
Detection device 130 and the air bag distance of unmanned fire balloon 110 are greater than the first pre-determined distance.It, will when carrying out sound field detection
The transaudient direction of linear array sound equipment is set up, and testing staff controls unmanned fire balloon by unmanned fire balloon control device 120
110 drive audio detection device 130 and positioning device 140 to fly by bindiny mechanism.Make audio detection device 130 in linear array sound
It flies in loud sound field detection space, the sound of different location in detection sound field detection space.It is real in audio detection device 130
When detection sound when, positioning device 140 synchronizes positioning.Audio detection device 130 detects sound, sends audio detection data
To data processing equipment 150；Positioning device 140 detects and sends location information to data processing equipment 150；Data processing equipment
150 real-time reception audio detection data and location information carry out data processing, obtain sound field detection space interior locating device 140
Positioning coordinate and the positioning coordinate at audio detection data corresponding relationship, that is, sound-filed simulation data of linear array sound equipment.
It should be noted that by the number of the positioning coordinate and audio detection data correlation of synchronization in data processing equipment
According to treatment process, existing mode in the prior art can be used and carry out.
Linear array sound equipment sound field detection system provided in this embodiment, when application by the transaudient direction of linear array sound equipment be set as to
On, unmanned fire balloon control device 120 is controlled by testing staff, control unmanned fire balloon 110 drive audio reduce device and
Positioning device 140 is flown, the audio detection data and location information of different location, data processing dress in detection sound field detection space
150 are set according to audio detection data and location information, data processing is carried out, obtains sound-filed simulation data.The present embodiment is to avoid
Sound wave reflects the influence that detect to sound field, and the transaudient direction of setting linear array sound equipment is upward, and in order to prevent fire balloon air bag to sound
The reflection interference sound field of wave detects, it is specified that air bag is greater than the first pre-determined distance at a distance from audio detection device 130.It eliminates each
Fang Shengbo reflection interference obtains more accurate sound-filed simulation data.Moreover, the noise ratio that generates of unmanned fire balloon 110 other fly
Row equipment is much smaller, and the audio detection data for obtaining the detection of audio detection device 130 are purer, removes noise jamming.
First pre-determined distance is chosen according to the air bag size of unmanned fire balloon 110.In one embodiment, first is default
The value range of distance is in 5m between 15m.Preferably, the first pre-determined distance is set as 10m.
In one embodiment, as shown in Figures 2 and 3, data processing equipment 150 and unmanned fire balloon 110 are mechanically connected；
Data processing equipment 150 is electrically connected with audio detection device 130 and positioning device 140 respectively.
Specifically, driving data processing equipment 150, audio detection device 130 and positioning when unmanned 110 flight of fire balloon
Device 140 flies together.Data processing equipment 150 is electrically connected with audio detection device 130 and positioning device 140, for example, passing through
Conducting wire connection.Data processing equipment 150 is more stable to the reception of audio detection data and location information in this way, delay is shorter.
Preferably, linear array sound equipment sound field detection system further includes circuit box body.Data processing equipment 150, audio detection dress
Set 130 and positioning device 140 be arranged in circuit box body.The gondola of circuit box body and unmanned fire balloon 110 passes through connection dress
It sets connected.
In one embodiment, as shown in figure 4, audio detection device 130 includes: microphone 131 and audio conversion module
132。
Microphone 131 is electrically connected with audio conversion module 132, is believed for acquiring audio detection signal, and by audio detection
Number it is transmitted to audio conversion module 132；
Audio conversion module 132 is electrically connected with data processing equipment 150, for audio detection signal to be converted to audio inspection
Audio detection data are transmitted to data processing equipment 150 by measured data.
Specifically, the audio detection signal in 131 acquisition testing environment of microphone, audio detection signal designation microphone
The sound size of 131 positions can be analog electrical signal.Audio conversion module 132 receives audio detection signal, to audio
It detects signal and carries out analog-to-digital conversion, the processing such as audio coding, convert audio detection data for audio detection signal, and by audio
Detection data is transmitted to data processing equipment 150.Audio detection data are transmitted as electronic signals, generally digital electric signal
Form is also possible to analog electrical signal.Preferably, microphone 131 is measuring microphone.Measuring microphone is that one kind is exclusively used in sound
The measuring instrument of research is learned, the more common microphone of audio collection precision is higher.
In one embodiment, as shown in figure 4, location technology uses RTK (Real-time kinematic, real-time dynamic
Positioning) location technology.Above-mentioned linear array sound equipment sound field detection system further includes RTK positioning datum module 160；Positioning device 140
Flow module 141 is positioned for RTK.
Specifically, RTK positioning is the differential position based on GPS.Consolidating on bottom surface is arranged in RTK positioning datum module
Positioning is set, and RTK positioning flow module is connect with the gondola of unmanned fire balloon 110.When positioning, RTK positioning datum module will be received
To GPS satellite signal by wireless communication link be sent to RTK positioning flow module.It is fixed that RTK positions flow module reception RTK
The signal and GPS satellite signal that position base modules are sent carry out difference resolving according to both signals, acquire RTK positioning datum
Increment of coordinate between module and RTK positioning flow module, to provide the positioning result of RTK positioning flow module.RTK positioning
Real-time and accuracy can meet the requirement of sound field detection, and the three-dimensional localization of Centimeter Level can be completed in one second.
In one embodiment, unmanned fire balloon control device 120 include fire balloon traction rope, the one of fire balloon traction rope
End is mechanically connected with unmanned fire balloon 110.
Optionally, one end of fire balloon traction rope is connect with the gondola of unmanned fire balloon 110, and the other end is by testing staff's hand
It holds, testing staff can adjust the length and lead of fire balloon traction rope, to adjust unmanned hot gas according to detection needs
The skyborne position of ball 110.
Further, as shown in figure 5, for the more stable skyborne position of the unmanned fire balloon 110 of control.Fire balloon is led
The quantity of messenger is more, and one end of more fire balloon traction ropes is connect with the gondola of unmanned fire balloon 110 respectively, the other end
It is held respectively by the several testing staff to stand in unmanned 110 different direction of fire balloon, by cooperation between testing staff, adjustment is each
The length and lead of fire balloon traction rope, to adjust the skyborne position of unmanned fire balloon 110.
In another embodiment, one end of more fire balloon traction ropes is connect with the gondola of unmanned fire balloon 110, separately
One end is wound around respectively on the roller of a hoist engine, and testing staff is by controlling each hoist engine tightening fire balloon traction rope or putting
Loose fire balloon traction rope, to adjust the skyborne position of unmanned fire balloon 110.
In one embodiment, unmanned fire balloon control device 120 includes Airborne Control Unit and ground remote controller；
Airborne Control Unit is arranged on unmanned fire balloon 110, for receiving the mobile control of ground remote controller transmission
It is mobile to control unmanned fire balloon 110 according to mobile control signal for signal.
Specifically, the dynamical system of unmanned fire balloon 110 includes riser and transfer.Airborne Control Unit setting
On unmanned fire balloon 110, for controlling riser and transfer.When carrying out sound field detection, tester passes through ground
Remote control device sends mobile control signal to Airborne Control Unit；Airborne Control Unit rises according to mobile control signal control
Device and transfer, so that unmanned fire balloon 110 be made to fly in the sky by the control of tester.
In one embodiment, riser includes the burner being arranged in air bag, be arranged in fuel tank in gondola,
Fuel supply system, the fuel being arranged on fuel supply system supply regulating valve and regulating valve control device.Mobile control letter
Number include height control signal and direction control signal.Regulating valve control device receives height control signal, is controlled according to height
The aperture of Signal Regulation fuel control and regulation valve.
Transfer includes multiple propellers, propeller power supply device and the propeller control device being arranged on the outside of gondola.
Propeller control device receiving direction controls signal, and the revolving speed of each propeller is adjusted according to direction control signal.
In one embodiment, the spacing distance of positioning device and microphone is within the scope of preset interval.Positioning device with
The spacing distance of microphone is smaller, and the location information of positioning device detection is more accurate.Preset range is the sound field according to needs
It is distributed levels of precision setting, 3cm can be taken to 15cm.In one embodiment, the spacing distance of positioning device and microphone is
10cm。
In one embodiment, to keep the load-carrying of unmanned fire balloon 110 lighter, data processing equipment 150 can be monolithic
Machine, FPGA or arm processor.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of linear array sound equipment sound field detection system characterized by comprising unmanned fire balloon, unmanned fire balloon control device,
Audio detection device, positioning device and data processing equipment；
The unmanned fire balloon is mechanically connected with the audio detection device and the positioning device respectively；The audio detection dress
It sets and is greater than the first pre-determined distance at a distance from the air bag of the unmanned fire balloon；The transaudient direction of linear array sound equipment is upward；
The unmanned fire balloon control device drives the audio detection device and described fixed for controlling the unmanned fire balloon
Position device flight, so that detection sound of the audio detection device in the sound field detection space of the linear array sound equipment；
The audio detection device sends audio detection data to described for detecting the sound in sound field detection space
Data processing equipment；The positioning device, for detecting location information and being sent to the data processing equipment；At the data
Device is managed, for carrying out data processing to the audio detection data and the location information, obtains the sound of the linear array sound equipment
Field distribution data.
2. linear array sound equipment sound field detection system according to claim 1, which is characterized in that the data processing equipment and institute
State unmanned fire balloon mechanical connection；The data processing equipment is electrically connected with the audio detection device and the positioning device respectively
It connects.
3. linear array sound equipment sound field detection system according to claim 2, which is characterized in that audio detection device includes: to pass
Sound device and audio conversion module；
The microphone is electrically connected with the audio conversion module, for acquiring audio detection signal, and by the audio detection
Signal is transmitted to the audio conversion module；
The audio conversion module is electrically connected with the data processing equipment, for the audio detection signal to be converted to audio
Detection data, and the audio detection data are transmitted to the data processing equipment.
4. linear array sound equipment sound field detection system according to claim 3, which is characterized in that further include RTK positioning datum mould
Block；The positioning device is that RTK positions flow module.
5. linear array sound equipment sound field detection system according to claim 4, which is characterized in that the unmanned fire balloon control dress
It sets including fire balloon traction rope, one end of the fire balloon traction rope and the unmanned fire balloon are mechanically connected.
6. linear array sound equipment sound field detection system according to claim 5, which is characterized in that the number of the fire balloon traction rope
Amount is more；One end of the more fire balloon traction ropes is mechanically connected with the unmanned fire balloon respectively.
7. linear array sound equipment sound field detection system according to claim 4, which is characterized in that the unmanned fire balloon control dress
It sets including Airborne Control Unit and ground remote controller；
The Airborne Control Unit is arranged on the unmanned fire balloon, the movement sent for receiving the ground remote controller
Signal is controlled, it is mobile according to the mobile control signal control unmanned fire balloon.
8. according to claim 1 to linear array sound equipment sound field detection system described in 7 any one, which is characterized in that described first
The value range of pre-determined distance is in 5m between 15m.
9. the linear array sound equipment sound field detection system according to any one of claim 3-7, which is characterized in that the positioning dress
The spacing distance with the microphone is set within the scope of preset interval.
10. linear array sound equipment sound field detection system according to claim 9, which is characterized in that the data processing equipment is
Single-chip microcontroller.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821444112.6U CN208768297U (en) | 2018-09-03 | 2018-09-03 | Linear array sound equipment sound field detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201821444112.6U CN208768297U (en) | 2018-09-03 | 2018-09-03 | Linear array sound equipment sound field detection system |
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| CN208768297U true CN208768297U (en) | 2019-04-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108924726A (en) * | 2018-09-03 | 2018-11-30 | 广州飞达音响股份有限公司 | Linear array sound equipment sound field detection system and method |
-
2018
- 2018-09-03 CN CN201821444112.6U patent/CN208768297U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108924726A (en) * | 2018-09-03 | 2018-11-30 | 广州飞达音响股份有限公司 | Linear array sound equipment sound field detection system and method |
| CN108924726B (en) * | 2018-09-03 | 2024-01-12 | 广州飞达音响有限公司 | Linear array acoustic sound field detection system and method |
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