CN214473919U

CN214473919U - Multi-beam sonar

Info

Publication number: CN214473919U
Application number: CN202120094445.6U
Authority: CN
Inventors: 徐焘
Original assignee: No 750 Test Field of China Shipbuilding Industry Corp
Current assignee: No 750 Test Field of China Shipbuilding Industry Corp
Priority date: 2021-01-14
Filing date: 2021-01-14
Publication date: 2021-10-22
Anticipated expiration: 2031-01-14

Abstract

The utility model discloses a multi-beam sonar, this sonar includes: the underwater electronic cabin, the sound-transmitting cover and the sonar array arranged on the sound-transmitting cover, wherein the sonar array is a transceiver transducer array, the distance between two elements on the same layer of the sonar array is the wavelength of sound waves generated by the transducer elements, the distance between two adjacent layers is half the wavelength of the sound waves generated by the transducer elements, the underwater circumference 360 degrees can be realized, the vertical 180-degree detection is realized, the detection capability of the sonar is greatly improved, the timeliness is improved simultaneously, and the energy and the directivity of received signals are ensured. The underwater electronic compartment includes: the FPGA transmitting plate and the FPGA receiving plate are located on the same plane, and the FPGA receiving plate is clamped on the FPGA transmitting plate, so that the height of the sonar is effectively reduced, and the sonar is convenient to carry.

Description

Multi-beam sonar

Technical Field

The application relates to the technical field of underwater detection, in particular to a multi-beam sonar.

Background

Sonar is a main technology used by navy of various countries for underwater monitoring, and is used for detecting, classifying, positioning and tracking underwater targets; underwater communication and navigation are carried out, and tactical maneuver and underwater weapon use of naval vessels and anti-diving airplanes are guaranteed. In addition, sonar technology is also widely used for torpedo guidance, mine fuses, and for fish detection, marine oil exploration, ship navigation, underwater operations, hydrographic measurements, surveying of submarine geological features, and the like.

The current sonar mainly realizes the detection of 360 degrees in the circumferential direction through a mechanical means, so that the sonar is large in size and complex in structure, and is not beneficial to carrying of equipment.

Disclosure of Invention

In order to solve the defects in the prior art, the inventor provides a multi-beam sonar, which adopts a transduction array with a receiving and transmitting combined device, can realize the detection of 360-degree circumferential and 180-degree vertical full-range coverage without mechanical means, and simultaneously optimizes the arrangement of an underwater electronic cabin, so that the sonar has the advantages of simple structure, small volume and convenient carrying.

Specifically, the utility model discloses a realize like this:

a multi-beam sonar, comprising: the system comprises an underwater electronic cabin, an acoustic transmission cover and sonar basic arrays arranged on the acoustic transmission cover, wherein the sonar basic arrays are transceiver transducer basic arrays, the distance between two sonar basic arrays on the same layer is the wavelength of sound waves generated by transducer elements, and the distance between two adjacent layers is half the wavelength of the sound waves generated by the transducer elements; the underwater electronic compartment includes: the FPGA transmitting board and the FPGA receiving board are located on the same plane, a clamping groove is formed in the side face of the FPGA transmitting board, and the FPGA receiving board is clamped in the clamping groove.

Further, the underwater electronic compartment further comprises: the photoelectric watertight socket is electrically connected with the power module, the FPGA transmitting plate and the FPGA receiving plate are located in a cavity defined by the protection baffle and the upper bottom plate, and the sound-transmitting cover is located below the lower bottom plate.

Furthermore, a central column is arranged between the upper base plate and the lower base plate, one end of the central column is fixedly connected with the upper base plate, the other end of the central column is fixedly connected with the lower base plate, the central column is a hollow column, and a fan is arranged in the central column.

Furthermore, a plurality of signal transmitting and receiving plates are arranged on the lower bottom plate and distributed around the central column in a scattering array mode.

Furthermore, a mounting seat is arranged on the side wall of the underwater electronic cabin, and the sound-transmitting cover is fixedly connected with the underwater electronic cabin through the mounting seat.

Compared with the prior art, the beneficial effects of the utility model introduce:

(1) through setting up the transduction array that arranges according to special rule for 360 degrees, the perpendicular 180 degrees full range covers's of circumference detection can be realized to this sonar, has good detection range, has reduced rotating-structure simultaneously, makes this sonar structure more simple, portable.

(2) The FPGA transmitting plate and the FPGA receiving plate are clamped together to be positioned in the same plane, and compared with the original structure that the FPGA transmitting plate and the FPGA receiving plate are overlapped, the height of the sonar is increased.

(3) The center post is hollow post, is provided with the fan in the hollow post, can accelerate the flow of air in the hollow post, dispels the heat to the components and parts in the electron cabin under water, extension sonar live time.

Drawings

Fig. 1 is a schematic structural diagram of a multi-beam sonar provided by the present application.

Reference numerals:

1-a sound-permeable cover; 11-a transducer array; 21-FPGA transmitting board; 22-FPGA receiving board; 23-photoelectric watertight socket; 24-a power supply module; 25-a protective barrier; 26-upper base plate; 27-a lower bottom plate; 28-a central column; 281-a fan; 29-signal transmitting and receiving board; and 3, mounting a base.

Detailed Description

The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.

Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.

Example 1

As shown in fig. 1, the present invention provides a multi-beam sonar including: the underwater electronic capsule comprises an underwater electronic capsule, a sound-transmitting cover 1 and a sonar array 11 arranged on the sound-transmitting cover 1, wherein a mounting seat 3 is arranged on the side wall of the underwater electronic capsule, and the sound-transmitting cover 1 is fixedly connected with the underwater electronic capsule through the mounting seat 3. The sonar array 11 is a receiving and transmitting transducer array, the distance between two sonar array elements on the same layer is the wavelength of sound waves generated by transducer elements, and the distance between two adjacent layers is half the wavelength of the sound waves generated by the transducer elements, so that the sonar can realize 360-degree underwater circumferential detection and 180-degree vertical detection, the detection capability of the sonar is greatly improved, the timeliness is improved simultaneously, and the energy and the directivity of received signals are guaranteed.

Specifically, an underwater electronic pod comprises: the device comprises a photoelectric watertight socket 23, a power module 24, a protective baffle 25, an upper bottom plate 26 and a lower bottom plate 27 which are sequentially arranged from top to bottom, wherein the photoelectric watertight socket 23 is electrically connected with the power module 24 and is used for being externally connected with a watertight cable to provide electric support for the whole sonar. The protection baffle 25 is used for ensuring the leakproofness of electron cabin under water, be provided with FPGA transmitting plate 21 and FPGA receiving plate 22 in the cavity that protection baffle 25 and upper plate 26 enclose, FPGA transmitting plate 21 and FPGA receiving plate 22 that are located the coplanar, the side of FPGA transmitting plate 21 is provided with the draw-in groove (not shown), FPGA receiving plate 22 joint is in the draw-in groove (not shown), can reduce the height of current FPGA receiving and dispatching module, the size of sonar has been reduced, and portable. Be provided with center post 28 between upper plate 26 and the lower plate 27, center post 28's one end and upper plate 26 fixed connection, the other end and lower plate 27 fixed connection, center post 28 is hollow post, is provided with fan 281 in the center post 28, and fan 281 is used for promoting the air flow, cools down the sonar to a certain extent, avoids the high temperature to damage inside components and parts. The lower bottom plate 27 is provided with a plurality of signal transmitting and receiving plates 29, and the plurality of signal transmitting and receiving plates 29 are distributed around the central column 28 in a scattering array mode, so that the sonar can realize the transmission and the reception of multiple signals, realize the transmission and the reception of different pulse widths, different signal modes and different beam widths, and improve the applicability.

The present invention has been described in terms of specific examples, which are provided to aid understanding of the invention and are not intended to be limiting. For a person skilled in the art to which the invention pertains, several simple deductions, modifications or substitutions may be made according to the idea of the invention.

Claims

1. A multi-beam sonar, comprising: the underwater electronic cabin comprises an underwater electronic cabin, a sound-transmitting cover (1) and a sonar array base (11) arranged on the sound-transmitting cover (1), and is characterized in that the sonar array base (11) is a transceiver transducer array, the distance between two elements on the same layer of the sonar array base (11) is the wavelength of sound waves generated by the transducer elements, and the distance between two adjacent layers of the sonar array base is half the wavelength of the sound waves generated by the transducer elements; the underwater electronic compartment includes: the FPGA transmitting board comprises an FPGA transmitting board (21) and an FPGA receiving board (22) which are located on the same plane, wherein a clamping groove is formed in the side face of the FPGA transmitting board (21), and the FPGA receiving board (22) is clamped in the clamping groove.

2. The multi-beam sonar of claim 1, wherein the underwater electronics pod further comprises: the sound-proof cover comprises a photoelectric watertight socket (23), a power module (24), a protection baffle plate (25), an upper base plate (26) and a lower base plate (27) which are sequentially arranged from top to bottom, wherein the photoelectric watertight socket (23) is electrically connected with the power module (24), an FPGA transmitting plate (21) and an FPGA receiving plate (22) are located in a cavity formed by the protection baffle plate (25) and the upper base plate (26), and the sound-proof cover (1) is located below the lower base plate (27).

3. The multi-beam sonar of claim 2, wherein a center post (28) is disposed between the upper plate (26) and the lower plate (27), wherein the center post (28) is fixedly connected to the upper plate (26) at one end and to the lower plate (27) at the other end, wherein the center post (28) is a hollow post, and wherein a fan (281) is disposed within the center post (28).

4. The multi-beam sonar of claim 3, wherein the bottom plate (27) has a plurality of signal transmitting and receiving plates (29) disposed thereon, the plurality of signal transmitting and receiving plates (29) being distributed about the center post (28) in a scattering array.

5. The multi-beam sonar of claim 1, wherein the side walls of the underwater electronics pod are provided with mounting mounts (3), and wherein the sound transparent cover (1) is fixedly connected to the underwater electronics pod via the mounting mounts (3).