CN212727140U - FPGA-based video image acquisition card - Google Patents

Abstract

The utility model relates to the field of acquisition cards, in particular to a video image acquisition card based on FPGA, which comprises an installer box and an acquisition card main body arranged in the installer box; an installation cavity for installing the acquisition card main body is arranged in the installing machine box; a plurality of fixed rods are arranged on the inner wall of the mounting cavity above the acquisition card main body at intervals, inserting grooves are formed in the bottoms of the fixed rods, telescopic slide rods are slidably connected inside the inserting grooves, and abutting blocks for abutting against the acquisition card main body are arranged at one ends, close to the acquisition card main body, of the telescopic slide rods; all be provided with the fin of L shape structure on the lateral wall all around of flexible slide bar bottom, and the bottom of fin is connected with horizontal conducting strip. The utility model discloses the butt piece that sets up is through the cooperation of flexible slide bar and dead lever and the surface elasticity butt of collection card main part, through on heat transfer to the fin that horizontal conducting strip will produce in the collection card main part, via the outside of heat dissipation window with heat discharge installer box.

Description

FPGA-based video image acquisition card

Technical Field

The utility model relates to an acquisition card field specifically is a video image acquisition card based on FPGA.

Background

In recent years, the image processing technology is rapidly developed, and the requirements on image acquisition equipment are higher and higher. The present equipment related to image acquisition, including video image acquisition card, is mainly used in monitoring system, mainly for capturing external photoelectric, video and audio signals, and digitalizing them and introducing them into computer to make digital processing.

Most of video image acquisition cards in the current market are video monitoring products aiming at the security industry, and mainly comprise a video decoding module for acquiring external analog video signals; the encryption module is connected to the video decoding module and used for encrypting the video image acquisition card; and the storage module is connected to the video decoding module and is used for storing the customized information of the user. The requirement of the products on the quality of video image effect is not high, but the problems of poor heat dissipation effect and poor installation stability generally exist in the aspect of functions, and the technical improvement is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a video image acquisition card based on FPGA to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a video image acquisition card based on FPGA comprises an installation machine box and an acquisition card main body arranged in the installation machine box; the installing machine box is internally provided with an installing cavity for installing an acquisition card main body, the acquisition card main body is installed in the installing cavity, and the acquisition card main body is connected with an FPGA controller; a plurality of fixed rods are arranged on the inner wall of the mounting cavity above the acquisition card main body at intervals, inserting grooves are formed in the bottoms of the fixed rods, telescopic slide rods are slidably connected inside the inserting grooves, and abutting blocks for abutting against the acquisition card main body are arranged at one ends, close to the acquisition card main body, of the telescopic slide rods; the side walls around the bottom of the telescopic slide bar are provided with radiating fins of L-shaped structures, the bottom ends of the radiating fins are connected with transverse heat conducting fins, and the lower surfaces of the transverse heat conducting fins are abutted to the acquisition card main body; and a return spring is sleeved outside the telescopic sliding rod.

Preferably, the abutting block is of a hemispherical structure, the arc-shaped end face of the abutting block is connected with the upper surface of the acquisition card main body, and the arc-shaped heat-conducting fin is arranged on the lower surface of the abutting block.

Preferably, the left side and the right side of the telescopic sliding rod are both provided with sliding blocks, and sliding grooves for the sliding blocks to slide up and down are formed in the positions, corresponding to the sliding blocks, of the insertion grooves.

Preferably, a plurality of heat dissipation holes are formed in the heat dissipation plate, and a heat dissipation window is formed in the side wall of the mounting machine box corresponding to the position of the heat dissipation plate.

Preferably, the inside of butt piece is hollow structure, and its outer wall is hollow out construction, and the internally mounted of butt piece has cooling fan, and cooling fan is connected with the battery through the wire, and battery and cooling fan's control end all is connected with the controller, and the controller is installed on the installation machine box.

Preferably, the lower surfaces of the transverse heat-conducting fins and the arc-shaped heat-conducting fins are all kept on the same horizontal plane.

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

the utility model discloses the butt piece has been installed in the top of collection card main part, the butt piece is through the cooperation of flexible slide bar and dead lever and the surface elasticity butt of collection card main part, and set up the horizontal conducting strip with collection card main part surface direct contact in the bottom of flexible slide bar, through the heat transfer of horizontal conducting strip with production in the collection card main part to the radiating strip on, via the outside of heat dissipation window with heat discharge installer box, the stability of collection card main part installation has both been ensured, the heat dispersion of collection card main part has been improved again, the life and the collection precision of extension collection card main part.

Drawings

FIG. 1 is a top view of the acquisition card body of the present invention;

FIG. 2 is a schematic view of the specific structure of the present invention;

fig. 3 is a schematic structural diagram of the mounting machine box of the present invention.

In the figure: 1. installing a machine box; 2. a collection card main body; 3. a mounting cavity; 4. an FPGA controller; 5. fixing the rod; 6. inserting grooves; 7. a telescopic slide bar; 8. a butting block; 9. a heat sink; 10. a transverse heat-conducting fin; 11. a return spring; 12. an arc-shaped heat conducting fin; 13. a slider; 14. heat dissipation holes; 15. a heat dissipation window; 16. a heat radiation fan.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-3, the present invention provides a technical solution: a video image acquisition card based on FPGA comprises an installing machine box 1 and an acquisition card main body 2 arranged in the installing machine box 1; an installation cavity 3 for installing an acquisition card main body 2 is arranged in the installing machine box 1, the acquisition card main body 2 is installed in the installation cavity 3, and the acquisition card main body 2 is connected with an FPGA controller 4; a plurality of fixed rods 5 are arranged on the inner wall of the mounting cavity 3 above the acquisition card main body 2 at intervals, insertion grooves 6 are formed at the bottoms of the fixed rods 5, telescopic slide rods 7 are slidably connected inside the insertion grooves 6, and abutting blocks 8 for abutting against the acquisition card main body 2 are arranged at one ends, close to the acquisition card main body 2, of the telescopic slide rods 7; the side walls around the bottom of the telescopic slide bar 7 are provided with radiating fins 9 with L-shaped structures, the bottom ends of the radiating fins 9 are connected with transverse heat conducting fins 10, and the lower surfaces of the transverse heat conducting fins 10 are abutted to the acquisition card main body 2; the outside of the telescopic sliding rod 7 is sleeved with a return spring 11.

Further, the abutting block 8 is of a hemispherical structure, the arc-shaped end face of the abutting block 8 is connected with the upper surface of the acquisition card main body 2, and the arc-shaped heat-conducting fins 12 are arranged on the lower surface of the abutting block 8.

Furthermore, the left side and the right side of the telescopic slide rod 7 are both provided with a slide block 13, and the position of the insertion groove 6 corresponding to the slide block 13 is provided with a slide groove for the slide block 13 to slide up and down.

Furthermore, a plurality of heat dissipation holes 14 are formed in the heat dissipation plate 9, and a heat dissipation window 15 is formed in a side wall of the mounting case 1 corresponding to the position of the heat dissipation plate 9.

Further, the inside of butt piece 8 is hollow structure, and its outer wall is hollow out construction, and the internally mounted of butt piece 8 has cooling fan 16, and cooling fan 16 is connected with the battery through the wire, and battery and cooling fan 16's control end all is connected with the controller, and the controller is installed on installer box 1.

Further, the lower surfaces of the lateral heat-conducting fins 10 and the arc-shaped heat-conducting fins 12 are all kept on the same horizontal plane.

The working principle is as follows: the utility model discloses installed butt piece 8 in the top of collection card main part 1, butt piece 8 plays the effect of butt through the cooperation between flexible slide bar 7 and the dead lever 5 and the surface of collection card main part 1, and under reset spring 11's elastic action for the butt piece 8 of flexible slide bar 7 bottom plays reverse elastic force to collection card main part 1, has improved collection card main part 1's stability to a certain extent. When the abutting block 8 abuts against the surface of the acquisition card main body 1, the transverse heat conducting fins 10 at the bottom of the telescopic slide rod 7 are in direct contact with the surface of the acquisition card main body 1, the transverse heat conducting fins 10 transmit heat generated by the acquisition card main body 1 to the radiating fins 9, and the radiating fan 16 inside the abutting block 8 can also discharge the heat of hot air of the surrounding environment of the acquisition card main body 1 out of the mounting machine box 1 through the radiating window 15, so that the stability of the acquisition card main body 1 is guaranteed, the radiating performance of the acquisition card main body 1 is improved, and the service life and the acquisition precision of the acquisition card main body 1 are prolonged.

It is worth noting that: the whole device realizes control over the device through the controller, and because the equipment matched with the controller is common equipment, the device belongs to the existing mature technology, and the electrical connection relation and the specific circuit structure are not repeated.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a video image acquisition card based on FPGA which characterized in that: comprises an installing machine box (1) and a collecting card main body (2) arranged in the installing machine box (1); an installation cavity (3) for installing an acquisition card main body (2) is arranged in the installing machine box (1), and the acquisition card main body (2) is connected with an FPGA controller (4); a plurality of fixing rods (5) are arranged on the inner wall of the mounting cavity (3) above the acquisition card main body (2) at intervals, insertion grooves (6) are formed in the bottoms of the fixing rods (5), telescopic slide rods (7) are slidably connected inside the insertion grooves (6), and abutting blocks (8) for abutting against the acquisition card main body (2) are arranged at one ends, close to the acquisition card main body (2), of the telescopic slide rods (7); the side walls of the periphery of the bottom of the telescopic sliding rod (7) are provided with radiating fins (9) with L-shaped structures, the bottom ends of the radiating fins (9) are connected with transverse heat conducting fins (10), and the lower surfaces of the transverse heat conducting fins (10) are abutted to the acquisition card main body (2); the outside cover of flexible slide bar (7) is equipped with reset spring (11).

2. The FPGA-based video image acquisition card according to claim 1, wherein: the butt joint block (8) is of a hemispherical structure, the arc-shaped end face of the butt joint block (8) is connected with the upper surface of the acquisition card main body (2), and the arc-shaped heat conducting fins (12) are arranged on the lower surface of the butt joint block (8).

3. The FPGA-based video image acquisition card according to claim 1, wherein: the left side and the right side of the telescopic sliding rod (7) are both provided with sliding blocks (13), and sliding grooves for the sliding blocks (13) to slide up and down are formed in the positions, corresponding to the sliding blocks (13), of the insertion grooves (6).

4. The FPGA-based video image acquisition card according to claim 1, wherein: the heat radiating fins (9) are provided with a plurality of heat radiating holes (14), and the side walls of the mounting machine box (1) corresponding to the positions of the heat radiating fins (9) are provided with heat radiating windows (15).

5. The FPGA-based video image acquisition card according to claim 1, wherein: the inside of butt piece (8) is hollow structure, and its outer wall is hollow out construction, and the internally mounted of butt piece (8) has cooling blower (16).

6. The FPGA-based video image acquisition card according to claim 1, wherein: the lower surfaces of the transverse heat conducting fins (10) and the arc-shaped heat conducting fins (12) are kept on the same horizontal plane.

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