CN204028360U - A kind of underwater sound video imaging apparatus - Google Patents
A kind of underwater sound video imaging apparatus Download PDFInfo
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- CN204028360U CN204028360U CN201420253644.7U CN201420253644U CN204028360U CN 204028360 U CN204028360 U CN 204028360U CN 201420253644 U CN201420253644 U CN 201420253644U CN 204028360 U CN204028360 U CN 204028360U
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- 238000003384 imaging method Methods 0.000 title claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000012545 processing Methods 0.000 claims abstract description 12
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- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 3
- 230000003111 delayed effect Effects 0.000 claims 1
- 239000000284 extract Substances 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
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- 238000005516 engineering process Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
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- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 239000000463 material 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
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- Y02A90/30—Assessment of water resources
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Abstract
The utility model discloses a kind of underwater sound video imaging apparatus, belongs to Underwater Engineering, reconnoitres field under water.This device comprises combined type acoustic transducer, underwater electronic warehouse receipt unit, high speed data link, deck processing unit and aobvious control computer under water specifically.This device ultimate principle utilizes B formula ultrasonic imaging principle, in water, launch the sound wave with certain beamwidth by transmitting transducer and irradiate water body and the bottom, receiving transducer receives water body or water-bed objective emission echo and carries out Wave beam forming, processing unit forms very narrow wave beam in the horizontal direction and extracts the time m-sequence of intensity of each beamformer output signal, form two dimensional gray sonar image, continuous print sonar video image can be formed by continuous receiving and transmitting signal.This device can in the water of low visibility or zero visibility for the fields such as Underwater Engineering, under water prospecting provide continuously, acoustics video image clearly.
Description
Technical field
The utility model relates to Underwater Engineering, reconnoitre field under water, or rather, relate to a kind of underwater sound video imaging apparatus, the acoustics video imaging of scene under suitable water, subsea pipeline additionally arranges and fault detect, the setting-out on the spot of the precision measurement control of Underwater Engineering and engineering structure, submarine target is searched for, the fields such as search and rescue under water.
Background technology
Total institute is known, the area of the earth more than 70% all cover by water body, along with the approach exhaustion of land resource, people also accelerate the process of ocean development.Be different from land or space, various ways can be adopted to the observation of environment and detection, such as visible ray, infrared ray, radio etc., and these means almost cannot use in detecting under water, especially in China, overwhelming majority shallow sea area, comprise the Bohai Sea, the East China Sea and the Yellow Sea etc., and inland river, lake, water quality is all more muddy, low visibility, therefore is just difficult to adopt optical device to the observation of scene under water.
Sound wave as uniquely can propagating in water medium and long distance of finding at present, and affects minimum a kind of medium by turbidity, is widely used in the numerous areas such as undersea detection.Therefore, sonar also just becomes undersea detection, Underwater Engineering, the requisite equipment of fishery and naval.
Image sonar is a kind of sonar intuitively reflecting scene information under water in the form of images, be widely used at numerous areas, the prospecting of the search of the mapping of such as sea-bed topography, under water remains, the detection of bridge dykes and dams, the supervision in harbour and seabed sea bed.Then, current image sonar system mainly with the image format of static state or the display of low frame per second dynamic image form, although field of detecting has played great effect under water, has also been difficult to meet to the demand that underwater movement objective is observed for some.Along with, deepening continuously with Underwater Engineering field to the continuous lifting of underwater environment observation requirements of ocean development, and national defence improving constantly security protection attention degree under water, to high resolving power, high definition, high frame per second, the demand being similar to the underwater sound video imaging apparatus of optical video effect will constantly increase.
Summary of the invention
Given this, the utility model discloses a kind of underwater sound video imaging apparatus, this device is made up of the combined type acoustic transducer (101) be connected with this, underwater electronic unit (102), watertight cable (103), deck processing unit (104) and aobvious control computer (105).
Underwater sound video imaging apparatus 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 (203) and arc alignment transmitting transducer battle array (201), is fixed on the watertight case (601) of underwater electronic unit (102) with T-shape unitized construction.
Underwater sound video imaging apparatus disclosed in the utility model, funtion part is made up of the transmitting driving circuit (202) be connected with arc alignment transmitting transducer battle array (201) and the multi channel signals modulate circuit (204) be connected successively with polynary straight line receiving transducer battle array (203), hyperchannel analog-digital converter circuit (205) and underwater unit master control system (206) connected successively and underwater data transmission unit (207) in its underwater electronic unit (102).
Underwater sound video imaging apparatus disclosed in the utility model, it is launched driving circuit (202) and is made up of the signal generating unit be connected successively (301), signal isolated location (302), power amplification unit (303), impedance matching unit (304), and is finally connected with arc alignment transmitting transducer battle array (201).
Underwater sound video imaging apparatus disclosed in the utility model, its multi channel signals modulate circuit (204) each passage is made up of the pre-amplification circuit be connected successively (402), bandwidth-limited circuit (402), controllable gain amplifying circuit (403), fixed gain amplifying circuit (404) and Anti-aliasing Filter Circuits (405), and the output signal of polynary straight line receiving transducer battle array (203) is directly connected to pre-amplification circuit (402).
Underwater sound video imaging apparatus disclosed in the utility model, its deck processing unit (104) is made up of the water surface data transmission unit (501) be once connected, signal transacting FPGA (502), image processor (503) and network communication unit (505), and image processor (503) is by parallel bus growth data storer (504) simultaneously.
Underwater sound video imaging apparatus disclosed in the utility model, its ultimate principle utilizes B formula ultrasonic imaging principle, in water, launch the sound wave with certain beamwidth by transmitting transducer and irradiate water body and the bottom, receiving transducer receives water body or water-bed objective emission echo and carries out Wave beam forming, processing unit forms very narrow wave beam in the horizontal direction and extracts the time m-sequence of intensity of each beamformer output signal, form two dimensional gray sonar image, continuous print sonar video image can be formed by continuous receiving and transmitting signal.
Underwater sound video imaging apparatus disclosed in the utility model, the generative process of each frame video image is as follows:
(1) synchronizing signal that underwater unit master control system (206) produces fixed intervals according to the frame per second set sends the signal generating unit (301) launched in driving circuit (202) to;
(2) signal generating unit (301) is according to parameters such as signal frequency, pulse length, modulation systems, produce transmitting of particular form, and convert electrical signals to acoustical signal by signal isolated location (302), power amplification unit (303), impedance matching unit (304) and arc alignment transmitting transducer battle array (201) successively, and acoustical signal is transmitted in water;
(3) acoustical signal runs into target or the water-bed back-scattered signal that produces is received by polynary straight line receiving transducer battle array (203) and converts faint electric signal in water, 64 array elements produce 64 tunnels independently electric signal, every road electric signal is via independently pre-amplification circuit (402) in the multi channel signals modulate circuit (204) be connected successively, bandwidth-limited circuit (402), controllable gain amplifying circuit (403), fixed gain amplifying circuit (404) and Anti-aliasing Filter Circuits (405) form the electric signal with certain voltage amplitude, and by hyperchannel analog-digital converter circuit (205), 64 tunnel simulating signals are converted to digital signal,
(4) 64 railway digital signals pass through underwater data transmission unit (207) by data upload to deck processing unit (104) again via underwater unit master control system (206) packing;
(5) underwater electronic unit (102) is connected by watertight cable (103) row data communication of going forward side by side with deck processing unit (104), the underwater data received is sent to signal transacting FPGA (502) by water surface data transmission unit (501), complete 256 spot beams to be formed, and the output sequence of each wave beam is sent to image processor (503);
(6) image processor (503) extracts the time m-sequence of intensity of each wave beam, and carry out greyscale transformation and fan-shaped conversion, and form a frame greyscale image data, by sending to aobvious control computer (105) to show with network communication unit (505).
Constantly repeat said process, continuous print image sequence can be formed, when frame per second meets or exceeds 15 frame per second, then define continuous print underwater sound video image effect, realize the dynamic observation to scene under water.
Underwater sound video imaging apparatus device disclosed in the utility model make use of universal mature integrated circuit in modern electronic technology and new structure and method, achieves high frame per second, high-resolution acoustics video imaging.
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 the acoustics video imaging of scene under water, subsea pipeline additionally arranges and fault detect, the setting-out on the spot of the precision measurement control of Underwater Engineering and engineering structure, submarine target is searched for, the fields such as search and rescue under water.
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 underwater sound video imaging apparatus described in the utility model.
Fig. 2 is underwater unit composition frame chart in underwater sound video imaging apparatus described in the utility model.
Fig. 3 launches driving circuit composition frame chart in underwater sound video imaging apparatus described in the utility model.
Fig. 4 is the composition frame chart of each passage of multi channel signals modulate circuit in underwater sound video imaging apparatus described in the utility model.
Fig. 5 is underwater sound video imaging apparatus middle deck described in the utility model processing unit composition frame chart.
Fig. 6 is underwater unit sectional structure chart in a kind of embodiment of underwater sound video imaging apparatus described in the utility model.
Fig. 7 is combined type acoustic transducer mounting means schematic diagram in a kind of embodiment of underwater sound video imaging apparatus 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 underwater sound video imaging apparatus, its acoustic centres frequency of operation is 400KHz, polynary straight line receiving transducer battle array (203) adopts 64 yuan of linear array structures, array element size 1.375mm × 6mm, submatrix spacing 2.813mm, Quan Zhen overall length is 180mm, can form the received beam width of 1 ° x30 ° thus; Arc alignment transmitting transducer battle array (201) radian subtended angle 150 °, radius-of-curvature 50mm, arc length 130mm, the wide 7.5mm of arc, can form the launching beam of 120 ° x25 ° thus.
Example is executed as one of the present utility model is better, underwater electronic unit (102) body seal cabin adopts 316 stainless steels to make, all electronic sections are all placed in pressurized capsule, polynary straight line receiving transducer battle array (203) and arc alignment transmitting transducer battle array (201) composition, be fixed on watertight case (601) with T-shape unitized construction, watertight connector (603) and watertight cable (103) all adopt polyurethane material one-shot forming, to realize good waterproof.
Example is executed as one of the present utility model is better, underwater unit master control system (206) selects Cyclone III Series FPGA, synchronous signal generating unit (301) is also realized by this fpga logic, produce pwm signal to be transmitted by signal isolated location (302) and power amplification unit (303), consider emission efficiency, in the present embodiment, select D-type power amplifier, multi channel signals modulate circuit (204) and hyperchannel analog-digital converter circuit (205) are realized by TI company integrated simulation front-end A FE5807, monolithic AFE5807 has 8 autonomous channels, therefore for 64 yuan of reception battle arrays in the present embodiment, altogether need 8 to realize signal condition and the analog to digital conversion of 64 passages, data after underwater unit master control system (206) analog to digital conversion are uploaded to deck processing unit (104) by 100 m ethernet, select integrated ethernet controller chips W 5200 as underwater data transmission unit (207) in the present embodiment.
Example is executed as one of the present utility model is better, data transmission unit waterborne (501) adopts integrated ethernet controller chips W 5200 equally, signal transacting FPGA (502) adopts the VIRTEX Series FPGA of the stronger Xilinx company of processing power mainly to complete the real time beam formation algorithm of 256, image processor (503) select TI company's T MS320C6416 fixed DSP processor mainly complete each wave beam time m-sequence of intensity extraction, and carry out greyscale transformation and fan-shaped conversion, form continuous print acoustics video.
The foregoing is only that one of the present 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 invention and accompanying drawing content are done changes, and in like manner all should be included in the protection domain of utility model.
Claims (6)
1. a underwater sound video imaging apparatus, is characterized in that this device is made up of the combined type acoustic transducer (101) be connected successively, underwater electronic unit (102), watertight cable (103), deck processing unit (104) and aobvious control computer (105).
2. underwater sound video imaging apparatus 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 (203) and arc alignment transmitting transducer battle array (201), is fixed on the watertight case (601) of underwater electronic unit (102) with T-shape unitized construction.
3. underwater sound video imaging apparatus as claimed in claim 1, to is characterized in that in underwater electronic unit (102) that funtion part is made up of the transmitting driving circuit (202) be connected with arc alignment transmitting transducer battle array (201) and the multi channel signals modulate circuit (204) be connected successively with polynary straight line receiving transducer battle array (203), hyperchannel analog-digital converter circuit (205) and underwater unit master control system (206) connected successively and underwater data transmission unit (207).
4. underwater sound video imaging apparatus as claimed in claim 1, it is characterized in that launching driving circuit (202) is made up of the signal generating unit be connected successively (301), signal isolated location (302), power amplification unit (303), impedance matching unit (304), and be finally connected with arc alignment transmitting transducer battle array (201).
5. underwater sound video imaging apparatus as claimed in claim 1, it is characterized in that multi channel signals modulate circuit (204) each passage is made up of the pre-amplification circuit be connected successively (402), bandwidth-limited circuit (402), controllable gain amplifying circuit (403), fixed gain amplifying circuit (404) and Anti-aliasing Filter Circuits (405), the delayed output signals of polynary straight line receiving transducer battle array (203) is directly connected to pre-amplification circuit (402).
6. underwater sound video imaging apparatus as claimed in claim 1, it is characterized in that deck processing unit (104) is made up of the water surface data transmission unit (501) be connected successively, signal transacting FPGA (502), image processor (503) and network communication unit (505), image processor (503) is by parallel bus growth data storer (504) simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420253644.7U CN204028360U (en) | 2014-05-19 | 2014-05-19 | A kind of underwater sound video imaging apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420253644.7U CN204028360U (en) | 2014-05-19 | 2014-05-19 | A kind of underwater sound video imaging apparatus |
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| CN204028360U true CN204028360U (en) | 2014-12-17 |
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| CN201420253644.7U Expired - Lifetime CN204028360U (en) | 2014-05-19 | 2014-05-19 | A kind of underwater sound video imaging apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109799507A (en) * | 2019-03-26 | 2019-05-24 | 南京砺剑光电技术研究院有限公司 | A kind of fusion of imaging device of two dimension sonar and auxiliary laser illumination imaging device |
| CN109884649A (en) * | 2019-01-28 | 2019-06-14 | 中国船舶重工集团公司第七一五研究所 | A kind of hardware device suitable for AUV multibeam echosounding sonar |
-
2014
- 2014-05-19 CN CN201420253644.7U patent/CN204028360U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109884649A (en) * | 2019-01-28 | 2019-06-14 | 中国船舶重工集团公司第七一五研究所 | A kind of hardware device suitable for AUV multibeam echosounding sonar |
| CN109799507A (en) * | 2019-03-26 | 2019-05-24 | 南京砺剑光电技术研究院有限公司 | A kind of fusion of imaging device of two dimension sonar and auxiliary laser illumination imaging device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Me Bin Document name: Notification that Application Deemed not to be Proposed |
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| TR01 | Transfer of patent right |
Effective date of registration: 20170606 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: Me Bin |