CN204203461U - A kind of 3-D scanning acoustics imaging device - Google Patents
A kind of 3-D scanning acoustics imaging device Download PDFInfo
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- CN204203461U CN204203461U CN201420253645.1U CN201420253645U CN204203461U CN 204203461 U CN204203461 U CN 204203461U CN 201420253645 U CN201420253645 U CN 201420253645U CN 204203461 U CN204203461 U CN 204203461U
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- 238000003384 imaging method Methods 0.000 title claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000005259 measurement Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 6
- 230000008569 process Effects 0.000 claims abstract description 4
- 238000004891 communication Methods 0.000 claims description 17
- 238000012545 processing Methods 0.000 claims description 10
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- 238000003199 nucleic acid amplification method Methods 0.000 claims description 8
- 238000013519 translation Methods 0.000 claims description 6
- 101150115013 DSP1 gene Proteins 0.000 claims description 5
- 101150052726 DSP2 gene Proteins 0.000 claims description 5
- 230000003750 conditioning effect Effects 0.000 claims description 4
- 230000003993 interaction Effects 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000003111 delayed effect Effects 0.000 claims description 2
- 230000036541 health Effects 0.000 claims description 2
- 230000000474 nursing effect Effects 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 238000003491 array Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
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- 238000004088 simulation Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
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- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
The utility model discloses a kind of 3-D scanning acoustics imaging device, belongs to Underwater Engineering survey field.This device is made up of submarine mechanical turntable, acoustics imaging unit and subsidiary equipment three part specifically.Its ultimate principle adopts acoustics multi-beam range measurement principle, transmitting transducer battle array irradiates search coverage to the beam of sound that the narrow vertical direction in emission level direction in water is wide, receiving transducer battle array is carried out Wave beam forming process to the multi channel signals received and is formed the very narrow received beam of several vertical direction and calculate each received beam echo time of arrival, the position of extraterrestrial target can be calculated in conjunction with beam direction, each transmitting-receiving can obtain the vertical scan line of a scene under water, on level 360 ° of directions, rotation sweep is carried out again by submarine mechanical turntable, the three-dimensional point cloud image in the specific region under water of final formation, thus reflect the three-dimensional structure of scene under water intuitively.This device can be widely used in that underwater structure detects, multiple field such as detection, the monitoring of ocean platform underwater security under bridge water.
Description
Technical field
The utility model relates to Underwater Engineering, under water survey field, or rather, relate to a kind of 3-D scanning acoustics imaging device, be widely used in that underwater structure detects, multiple field such as detection, the monitoring of ocean platform underwater security under bridge water.
Background technology
Large-scale underwater structure, in water after the long period, owing to being subject to washing away and corroding of current, can there is many potential safety hazards such as damage, distortion in the bridge pier, harbour, ocean platform, off-shore structure etc. of such as bridge in a large number.Traditional method detects underwater structure and adopts frogman to touch spy, this method work efficiency and low, and frogman's underwater operation simultaneously exists again many potential safety hazards.
Development along with science and technology more and more detects under water and adopts side-scan sonar, multibeam echosounding sonar etc. to carry out, but side-scan sonar mainly shows with image format, be difficult to provide concrete three-dimensional structure, be therefore only limitted to search and rescue under water, application scenario that pipe inspection etc. only utilizes image information; And although multibeam echosounder can provide three-dimensional structure under water, but the fundamental purpose of multibeam echosounder is surveyed and drawn under water, therefore be difficult to carry out three-dimensional imaging to bridge pier, ocean platform etc. perpendicular to the works at the bottom, especially approximately level part multibeam echosounder cannot be measured substantially.
And for fields such as detection, the monitorings of ocean platform underwater security under underwater structure detection, bridge water to the actual demand of underwater structure three-dimensional imaging, a kind of new measuring equipment just must be had can to carry out omnibearing three-dimensional imaging to the works perpendicular to the bottom.
Summary of the invention
Given this, the utility model discloses a kind of 3-D scanning acoustics imaging device, this device is made up of acoustics imaging part, mechanical scanning part and subsidiary unit three part, and wherein acoustics imaging part is made up of the combined type acoustic transducer (101) be connected successively, acoustic signal converting unit (102), signal processing unit (104); Mechanical scanning part is made up of the watertight stepper motor 1 (115) be connected successively, watertight stepper motor 2 (116) and mechanical scanning control module (103), and be connected with acoustic signal converting unit (102) by data communication interface: subsidiary unit comprises attitude measurement instrument (105) and surperficial sound velocimeter (106), is connected with signal processing unit (104) by serial data interface.
A kind of 3-D scanning acoustics imaging device disclosed in the utility model, its combined type acoustic transducer (101) be positioned under water is made up of polynary straight line receiving transducer battle array (108) and polynary straight line transmitting transducer battle array (109), is fixed on the watertight case (503) of acoustic signal converting unit (102) with " L " type unitized construction.
A kind of 3-D scanning acoustics imaging device disclosed in the utility model, circuit part is launched by signal in its acoustic signal converting unit (102), Signal reception and data interaction three part form, wherein signal emission part by with polynary straight line transmitting transducer battle array (109) be connected successively hyperchannel launches driving circuit (110), acoustical signal main control unit (112) forms; Signal receive section forms with AD translation circuit (111), acoustical signal main control unit (112) by nursing one's health with the multi channel signals that polynary straight line receiving transducer battle array (108) is connected successively: data interaction part is made up of be connected successively acoustical signal main control unit (112) and data communication units 1 (113), data communication units 2 (114).
A kind of 3-D scanning acoustics imaging device disclosed in the utility model, its watertight stepper motor 1 (115) is mutually vertical with the rotating shaft of watertight stepper motor 2 (116), the slewing area of watertight stepper motor 1 (115) is level 360, and the slewing area of watertight stepper motor 2 (116) is vertical direction ± 45 °.
A kind of 3-D scanning acoustics imaging device disclosed in the utility model, each transmission channel that its hyperchannel launches driving circuit (110) is made up of the signal isolated location (201) be connected successively, power amplification unit (202), output transformer unit (203), and is finally connected with the array element of polynary straight line transmitting transducer battle array (109).
A kind of 3-D scanning acoustics imaging device disclosed in the utility model, the conditioning of its multi channel signals is made up of the pre-amplification circuit be connected successively (301), bandwidth-limited circuit (302), controllable gain amplifying circuit (303), Anti-aliasing Filter Circuits (304) and AD transducer (305) with its each passage of AD translation circuit (111), and the delayed output signals of polynary straight line receiving transducer battle array (108) is directly connected to pre-amplification circuit (301).
A kind of 3-D scanning acoustics imaging device disclosed in the utility model, its signal processing unit (104) distributes centered by FPGA (403) by data, is connected with data communication units 3 (401), data communication units 4 (402), signal transacting FPGA (406), main-machine communication unit (404) respectively by data bus; Signal transacting FPGA (406) is connected with DSP2 (408) with DSP1 (407) respectively by data bus, synchronous signal process FPGA (406), DSP1 (407) and DSP2 (408) are respectively by high-speed memory interface expansion mass storage (409,410,411): main-machine communication unit (404) is connected with network communication unit (405) by data bus, and is connected with main control computer (107) by Ethernet.
A kind of 3-D scanning acoustics imaging device disclosed in the utility model, its ultimate principle adopts acoustics multi-beam range measurement principle, transmitting transducer battle array irradiates search coverage to the acoustic emission wave beam (502) that the narrow vertical direction in emission level direction in water is wide, receiving transducer battle array is carried out Wave beam forming process to the multi channel signals received and is formed the very narrow sound reception wave beam (501) of several vertical direction and calculate each received beam echo time of arrival, the position of extraterrestrial target can be calculated in conjunction with beam direction, each transmitting-receiving can obtain the vertical scan line of a scene under water, on level 360 ° of directions, rotation sweep is carried out again by submarine mechanical turntable, the three-dimensional point cloud image in the specific region under water of final formation, thus reflect the three-dimensional structure of scene under water intuitively.
The spacescan that a kind of its advantage of 3-D scanning acoustics imaging device disclosed in the utility model is utilizing mechanical turntable to realize wave beam, the overall complexity of system and cost are reduced greatly, by the three-dimensional point cloud structure of measuring of can completing of the scanning of submarine mechanical turntable on level 360 ° of directions to scene under water, thus realize the accurate three-dimensional modeling to scene under water.
As can be seen here, the utility model is novel in design, with high content of technology, be easy to realize and cost is lower, be very suitable for underwater structure in Underwater Engineering field, under water survey field, such as Large Bridge Pier, port and pier, ocean platform etc. carry out meticulous three-dimensional and sweep survey.
Accompanying drawing explanation
Being more conducive to relevant speciality technician to make content of the present utility model understand, below accompanying drawing being briefly described.
Fig. 1 is the composition frame chart of 3-D scanning acoustics imaging device described in the utility model.
Fig. 2 is the composition frame chart that in 3-D scanning acoustics imaging device described in the utility model, hyperchannel launches driving circuit.
Fig. 3 is the composition frame chart of multi channel signals conditioning and AD translation circuit in 3-D scanning acoustics imaging device described in the utility model.
Fig. 4 is signal processing unit composition frame chart in 3-D scanning acoustics imaging device described in the utility model.
Fig. 5 is the composition structural drawing of a kind of embodiment of 3-D scanning acoustics imaging device described in the utility model.
Specific embodiments
Below in conjunction with accompanying drawing and the utility model one preferably specific embodiment the utility model is described in further detail.
Example is executed as one of the present utility model is better, this 3-D scanning acoustics imaging device, its acoustic centres frequency of operation is 800KHz, polynary straight line receiving transducer battle array (203) and polynary straight line transmitting transducer battle array (203) all adopt 64 yuan of linear array structures, thus form the acoustic emission wave beam of 120 ° x1 ° and the sound reception wave beam of 1 ° x15 °.
Example is executed as one of the present utility model is better, all electronic sections of acoustic signal converting unit (102) and signal processing unit (104) are all positioned in a watertight compartment, pressurized capsule shell adopts 316 stainless steels to make, polynary straight line receiving transducer battle array (108) and polynary straight line transmitting transducer battle array (109) composition, be fixed on watertight case (503) with " L " type unitized construction, surface sound velocimeter (106) and attitude measurement instrument (105) are also fixed on watertight case (503), and attitude measurement instrument (105) needs to carry out precise calibration with the relative attitude of combined type acoustic transducer (101), whole watertight compartment is installed on submarine mechanical turntable, turntable adopts the mode of tripod (504) to be positioned over the bottom in waters to be measured.
Execute example as one of the present utility model is better, acoustical signal main control unit (112) selects Cyclone III Series FPGA, mainly completes generation that hyperchannel PWM transmits, the collection of echoed signal and the function of data communication; Acoustical signal main control unit (112) produces pwm signal by Digital Logic and forms missile acoustical signal by signal isolated location (201), power amplification unit (202), output transformer unit (203), consider emission efficiency, in the present embodiment, power amplification unit (202) selects D-type power amplifier; Multi channel signals conditioning is realized by TI company integrated simulation front-end A FE5808 with AD translation circuit (111), monolithic AFE5808 has 8 autonomous channels, therefore for 64 yuan of reception battle arrays in the present embodiment, 8 are altogether needed to realize signal condition and the analog to digital conversion of 64 passages.
Example is executed as one of the present utility model is better, in its signal processing unit (104), data are distributed FPGA (403) data and are distributed FPGA (403) employing Cyclone III Series FPGA, mainly complete the distribution of echo data, the collection of attitude measurement instrument (105) and surperficial sound velocimeter (106) data and the generation of all kinds of control signal, signal transacting FPGA (406) adopts the VIRTEX Series FPGA of the stronger Xilinx company of processing power mainly to complete the real time beam formation algorithm of 512, DSP1 (407) and DSP2 (408) adopts TI company's T MS320C66xx series DSP mainly to complete to carry out echo estimation time of arrival to echoed signal in each wave beam, and in conjunction with beam angle, the attitude data of machinery turntable angle and attitude measurement instrument calculates the locus of echo point.
The foregoing is only that the one of utility model is better feasiblely executes example; described embodiment is also not used to limit scope of patent protection of the present utility model; therefore the equivalent structure that every utilization instructions of the present utility model and accompanying drawing content are done changes, and in like manner all should be included in protection domain of the present utility model.
Claims (7)
1. a 3-D scanning acoustics imaging device, it is characterized in that this device is made up of acoustics imaging part, mechanical scanning part and subsidiary unit three part, wherein acoustics imaging part is made up of the combined type acoustic transducer (101) be connected successively, acoustic signal converting unit (102), signal processing unit (104); Mechanical scanning part is made up of the watertight stepper motor 1 (115) be connected successively, watertight stepper motor 2 (116) and mechanical scanning control module (103), and is connected with acoustic signal converting unit (102) by data communication interface; Subsidiary unit comprises attitude measurement instrument (105) and surperficial sound velocimeter (106), is connected with signal processing unit (104) by serial data interface.
2. 3-D scanning acoustics imaging device as claimed in claim 1, it is characterized in that the combined type acoustic transducer (101) be positioned under water is made up of polynary straight line receiving transducer battle array (108) and polynary straight line transmitting transducer battle array (109), is fixed on the watertight case (503) of acoustic signal converting unit (102) with " L " type unitized construction.
3. 3-D scanning acoustics imaging device as claimed in claim 1, it is characterized in that circuit part is launched by signal in acoustic signal converting unit (102), Signal reception and data interaction three part form, wherein signal emission part by with polynary straight line transmitting transducer battle array (109) be connected successively hyperchannel launches driving circuit (110), acoustical signal main control unit (112) forms; Signal receive section forms with AD translation circuit (111), acoustical signal main control unit (112) by nursing one's health with the multi channel signals that polynary straight line receiving transducer battle array (108) is connected successively; Data interaction part is by connected acoustical signal main control unit (112) and data communication units 1 (113), data communication units 2 (114) form successively.
4. 3-D scanning acoustics imaging device as claimed in claim 1, it is characterized in that watertight stepper motor 1 (115) is mutually vertical with the rotating shaft of watertight stepper motor 2 (116), the slewing area of watertight stepper motor 1 (115) is level 360, and the slewing area of watertight stepper motor 2 (116) is vertical direction ± 45 °.
5. 3-D scanning acoustics imaging device as claimed in claim 1, it is characterized in that each transmission channel of hyperchannel transmitting driving circuit (110) is made up of the signal isolated location (201) be connected successively, power amplification unit (202), output transformer unit (203), and be finally connected with the array element of polynary straight line transmitting transducer battle array (109).
6. 3-D scanning acoustics imaging device as claimed in claim 1, it is characterized in that multi channel signals conditioning is made up of the pre-amplification circuit be connected successively (301), bandwidth-limited circuit (302), controllable gain amplifying circuit (303), Anti-aliasing Filter Circuits (304) and AD transducer (305) with its each passage of AD translation circuit (111), the delayed output signals of polynary straight line receiving transducer battle array (108) is directly connected to pre-amplification circuit (301).
7. 3-D scanning acoustics imaging device as claimed in claim 1, it is characterized in that signal processing unit (104) distributes centered by FPGA (403) by data, be connected with data communication units 3 (401), data communication units 4 (402), signal transacting FPGA (406), main-machine communication unit (404) respectively by data bus; Signal transacting FPGA (406) is connected with DSP2 (408) with DSP1 (407) respectively by data bus, and synchronous signal process FPGA (406), DSP1 (407) and DSP2 (408) are respectively by high-speed memory interface expansion mass storage (409,410,411); Main-machine communication unit (404) is connected with network communication unit (405) by data bus, and is connected with main control computer (107) by Ethernet.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420253645.1U CN204203461U (en) | 2014-05-19 | 2014-05-19 | A kind of 3-D scanning acoustics imaging device |
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| CN201420253645.1U CN204203461U (en) | 2014-05-19 | 2014-05-19 | A kind of 3-D scanning acoustics imaging device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103969652A (en) * | 2014-05-19 | 2014-08-06 | 么彬 | Three-dimensional scanning acoustic imaging device |
| CN105424173A (en) * | 2015-12-25 | 2016-03-23 | 河海大学常州校区 | Underwater space sound field measurement and visualization system and modeling and cleaning method thereof |
| CN106908778A (en) * | 2017-04-18 | 2017-06-30 | 上海达华测绘有限公司 | Detecting system and detection method |
| CN107526087A (en) * | 2016-06-21 | 2017-12-29 | 北京臻迪科技股份有限公司 | A kind of method and system for obtaining underwater 3D faultage images |
| CN107905178A (en) * | 2017-11-28 | 2018-04-13 | 重庆交通大学 | A kind of sweep-out method of underwater reefs |
| CN109975815A (en) * | 2019-03-22 | 2019-07-05 | 武汉源海博创科技有限公司 | A kind of submarine target multi-beam sonar detection system and method |
-
2014
- 2014-05-19 CN CN201420253645.1U patent/CN204203461U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103969652A (en) * | 2014-05-19 | 2014-08-06 | 么彬 | Three-dimensional scanning acoustic imaging device |
| CN105424173A (en) * | 2015-12-25 | 2016-03-23 | 河海大学常州校区 | Underwater space sound field measurement and visualization system and modeling and cleaning method thereof |
| CN107526087A (en) * | 2016-06-21 | 2017-12-29 | 北京臻迪科技股份有限公司 | A kind of method and system for obtaining underwater 3D faultage images |
| CN106908778A (en) * | 2017-04-18 | 2017-06-30 | 上海达华测绘有限公司 | Detecting system and detection method |
| CN107905178A (en) * | 2017-11-28 | 2018-04-13 | 重庆交通大学 | A kind of sweep-out method of underwater reefs |
| CN109975815A (en) * | 2019-03-22 | 2019-07-05 | 武汉源海博创科技有限公司 | A kind of submarine target multi-beam sonar detection system and method |
| CN109975815B (en) * | 2019-03-22 | 2021-09-07 | 宁波博海深衡科技有限公司 | Underwater target multi-beam sonar detection system and method |
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| C14 | Grant of patent or utility model | ||
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| DD01 | Delivery of document by public notice |
Addressee: Mei bin Document name: Notification that Application Deemed not to be Proposed |
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| TR01 | Transfer of patent right |
Effective date of registration: 20170526 Address after: Branch of Beijing economic and Technological Development Zone of Beijing City thirteen street 100176 No. 20 floor two Patentee after: BEIJING HYDRO-TECH MARINE TECHNOLOGY Co.,Ltd. Address before: 100080 Haidian District, Suzhou Street, No. 1, No. 815, Beijing Patentee before: Mei bin |
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| CX01 | Expiry of patent term |
Granted publication date: 20150311 |