CN221381657U

CN221381657U - Signal generator protector based on FPGA

Info

Publication number: CN221381657U
Application number: CN202323331372.6U
Authority: CN
Inventors: 吕妍; 薛巍; 李莹; 陈洪侠; 黄海宇; 袁芳; 陈文�
Original assignee: Heilongjiang Provincial Institute Of Measurement & Verification
Current assignee: Heilongjiang Provincial Institute Of Measurement & Verification
Priority date: 2023-12-07
Filing date: 2023-12-07
Publication date: 2024-07-19
Anticipated expiration: 2033-12-07

Abstract

The utility model belongs to the field of signal generators, in particular to a signal generator protection device based on an FPGA, which comprises a protection box, wherein an anti-interference mechanism is arranged on the inner wall of the protection box, a fixing mechanism is arranged on the inner wall of the protection box, the anti-interference mechanism comprises a filter, the filter is fixedly connected to the inner wall of the protection box, connecting wires are fixedly connected to the two ends of the filter, a fixing block is fixedly connected to the surface of the filter, the fixing mechanism comprises an air cylinder, the air cylinder is fixedly connected to the inner wall of the protection box, a sliding rail is fixedly connected to the inner wall of the protection box, a sliding block is connected to the surface of the sliding rail in a sliding manner, and a gear is sleeved on the surface of a connecting column; through setting up anti-interference mechanism, use the wave filter can filter interfering signal, only remain the signal to be measured, can avoid signal generator to receive maliciously to interfere with or utilize, ensure the accuracy and the integrality of measured signal.

Description

Signal generator protector based on FPGA

Technical Field

The utility model relates to the field of signal generators, in particular to a signal generator protection device based on an FPGA.

Background

A signal generator is a module for generating clock or pulse signals of a specific frequency and waveform, typically consisting of one or more programmable logic blocks, whose internal registers can be configured to control parameters of the output signals, and in some application scenarios, the signal generator can be used to generate various test signals for circuit testing, communications system debugging, sensor calibration, etc.

According to Chinese patent publication No.: CN219204935U discloses a signal generator protector based on FPGA, including signal generator storage mechanism, signal generator storage mechanism's top seal has sealing mechanism, signal generator storage mechanism's internally mounted has signal generator fixed establishment, it has the mounting to run through on the signal generator fixed establishment, support the backup pad through setting up the connecting column in the inside of case to set up the heat conduction piece in the bottom of backup pad and contact with the bottom of case, set up copper guide piece in the inside of sealed lid simultaneously, and set up the heat conduction silicon chip with signal generator overlap joint on copper guide piece, when signal generator work generates heat, heat conducts through the heat conduction silicon chip on heat conduction piece and the copper guide piece in the backup pad respectively, and whole space realizes sealedly, has reached the effect of dispelling the heat to signal generator under sealing environment.

However, when the signal generator is used for testing, the anti-interference capability to the surrounding environment is relatively weak, so that the signal generator is easily influenced by external interference signals and can be easily used by others maliciously, and the measured signal result is error or incomplete, so that the testing result is influenced.

Disclosure of utility model

In order to make up for the defects of the prior art, the utility model improves the existing signal generator protection device based on the FPGA, and improves the anti-interference capability of the signal generator and the stability and safety of the signal generator by arranging the anti-interference mechanism and the fixing mechanism.

The technical scheme adopted for solving the technical problems is as follows:

the signal generator protection device based on the FPGA comprises a protection box, wherein the inner wall of the protection box is fixedly connected with a signal generator body, the inner wall of the protection box is provided with an anti-interference mechanism, and the inner wall of the protection box is provided with a fixing mechanism;

The anti-interference mechanism comprises a filter, the filter is fixedly connected to the inner wall of the protection box, connecting wires are fixedly connected to the two ends of the filter, the number of the connecting wires is four, one end of each connecting wire is fixedly connected to the surface of the signal generator body, the connecting wire at the other end of the filter penetrates through the inner wall of the protection box, a fixed block is fixedly connected to the surface of the filter, bolts are connected to the inner wall of the fixed block in a threaded manner, and the number of the bolts is two;

The fixed establishment includes the cylinder, cylinder fixedly connected with is in the inner wall of protection box, the inner wall fixedly connected with slide rail of protection box, the quantity of slide rail is two, the surface sliding connection of slide rail has the slider, the quantity of slider is two, the surface of slide rail and the inner wall contact of spout, one side fixedly connected with draw runner of slider, the inner wall fixedly connected with spliced pole of protection box, the surface cover of spliced pole is equipped with the gear, the surface of gear meshes with the inner wall of rack, the top fixedly connected with fixed plate of slider, the fixedly connected with signal generator body of surface of fixed plate.

Preferably, the bottom of the protection box is fixedly connected with support columns, and the number of the support columns is a plurality of.

Preferably, the top of the support column is fixedly connected with a bottom plate, and the surface of the bottom plate is fixedly connected with a vibration-proof pad.

Preferably, grooves are formed in the surface of the bottom plate, the number of the grooves is two, and heat dissipation holes are formed in one side of the protection box.

Preferably, the motor is fixedly connected to the top of the bottom plate, the mounting frame is fixedly connected to the surface of the motor, and the number of the mounting frames is two.

Preferably, the output end of the motor is fixedly connected with fan blades, and the number of the fan blades is four.

Preferably, the surface of the fixing plate is fixedly connected with an anti-slip pad, and the anti-slip pad is made of rubber.

The utility model has the advantages that:

First, through setting up anti-interference mechanism, use the wave filter can filter interfering signal, only remain the signal to be measured, can reduce the influence to signal generator, thereby improve signal's purity, can effectively improve signal generator's interference killing feature, avoid signal generator to receive maliciously and interfere with or utilize, ensure signal's accuracy and integrality, thereby obtain more reliable test result.

Secondly, through setting up fixed establishment, can ensure that signal generator can not remove or slope because of vibrations, rocking or other external force of external force, effectively improve signal generator's stability and security, reduce the risk of signal distortion or damage because of external interference leads to.

Drawings

FIG. 1 is a perspective view of the overall structure of the present utility model;

FIG. 2 is a schematic structural view of an anti-interference mechanism according to the present utility model;

FIG. 3 is a schematic structural view of the fixing mechanism of the present utility model;

FIG. 4 is a schematic view of a part of the structure of the present utility model;

Fig. 5 is a schematic view of the motor, mounting frame and fan blade of the present utility model.

In the figure: 1. a protective case; 2. a signal generator body; 3. an anti-interference mechanism; 301. a filter; 302. a connecting wire; 303. a fixed block; 304. a bolt; 4. a fixing mechanism; 401. a cylinder; 402. a slide rail; 403. a slide block; 404. a rack; 405. a connecting column; 406. a gear; 407. a fixing plate; 5. a support column; 6. a bottom plate; 7. a vibration-proof pad; 8. a groove; 9. a heat radiation hole; 10. a motor; 11. a mounting frame; 12. a fan blade; 13. an anti-slip mat.

Detailed Description

The following detailed description of the utility model will be given with reference to the accompanying drawings.

An FPGA-based signal generator guard under this embodiment. Referring to fig. 1, 2, 3 and 4, an FPGA-based signal generator protection device includes a protection box 1, an inner wall of the protection box 1 is fixedly connected with a signal generator body 2, an anti-interference mechanism 3 is provided on the inner wall of the protection box 1, and a fixing mechanism 4 is provided on the inner wall of the protection box 1;

The anti-interference mechanism 3 comprises a filter 301, the filter 301 is fixedly connected to the inner wall of the protection box 1, two ends of the filter 301 are fixedly connected with connecting wires 302, the number of the connecting wires 302 is four, one end of each connecting wire 302 is fixedly connected to the surface of the signal generator body 2, the connecting wires 302 at the other end of the filter 301 penetrate through the inner wall of the protection box 1, the surface of the filter 301 is fixedly connected with a fixed block 303, the inner wall of the fixed block 303 is in threaded connection with bolts 304, and the number of the bolts 304 is two;

The fixed establishment 4 includes cylinder 401, cylinder 401 fixed connection is in the inner wall of protection box 1, the inner wall fixedly connected with slide rail 402 of protection box 1, the quantity of slide rail 402 is two, the surface sliding connection of slide rail 402 has slider 403, the quantity of slider 403 is two, the surface of slide rail 402 and the inner wall contact of spout, one side fixedly connected with draw runner of slider 403, the inner wall fixedly connected with spliced pole 405 of protection box 1, the surface cover of spliced pole 405 is equipped with gear 406, the surface of gear 406 meshes with the inner wall of rack 404, the top fixedly connected with fixed plate 407 of slider 403, the surface fixedly connected with signal generator body 2 of fixed plate 407.

Referring to fig. 4, the bottom of the protection box 1 is fixedly connected with a plurality of support columns 5, and the support columns 5 can provide stable supporting force, so that the bottom plate 6 can be fixed on the top of the support columns 5, and the bottom plate 6 can bear a certain weight;

Referring to fig. 4, the top of the support column 5 is fixedly connected with a bottom plate 6, the surface of the bottom plate 6 is fixedly connected with a vibration-proof pad 7, and when the protection box 1 is subjected to external vibration, the vibration-proof pad 7 can absorb and disperse a part of vibration energy, so that impact and damage to internal equipment or articles are reduced;

Referring to fig. 1, the surface of the bottom plate 6 is provided with two grooves 8, one side of the protection box 1 is provided with heat dissipation holes 9, the grooves 8 can be matched with the fixed plate 407 by being formed in the surface of the bottom plate 6, the grooves 8 can accommodate the fixed plate 407 and enable the fixed plate 407 to move in parallel, the heat dissipation holes 9 can enable air to circulate, and the temperature in the protection box 1 is reduced;

Referring to fig. 1 and 5, the motor 10 is fixedly connected to the top of the bottom plate 6, the mounting frames 11 are fixedly connected to the surface of the motor 10, the number of the mounting frames 11 is two, and the motor 10 and the air cylinder 401 can be fixed through the mounting frames 11, so that loosening or shaking phenomenon during operation is avoided, and safety is improved;

Referring to fig. 5, the output end of the motor 10 is fixedly connected with four blades 12, and the number of the blades 12 is four, so that the air flowing speed in the protection box 1 can be increased by the rotation of the blades 12, thereby improving the air convection effect, and the heat-proof quantity in the protection box 1 can be taken away and transferred to the external environment for cooling;

Referring to fig. 1 and 4, the surface of the fixing plate 407 is fixedly connected with a non-slip mat 13, the non-slip mat 13 is made of rubber, and friction force can be increased by the non-slip mat 13, and greater gripping force and stability can be provided when the signal generator body 2 is fixed, so that the possibility of movement is reduced.

Working principle: in order to prevent the signal generator body 2 from being interfered by external signals during operation, the bottom can be fixed through the support column 5, the bottom plate 6 can be supported by the support force, the external impact force can be lightened through the shock pad 7, the damage to the internal equipment of the protection box 1 is avoided, by placing the signal generator body 2 in the protection box 1, a user can start the air cylinder 401 through an external control switch, the air cylinder 401 supplies power through an external power supply, the output end of the air cylinder 401 drives the sliding block 403 to rotate on the surface of the sliding rail 402, the rack 404 can be driven to move through the movement of the sliding block 403, the gear 406 meshed with the rack 404 can be driven to rotate when the rack 404 moves, the rack 404 on the other side can be driven to move through the movement of the sliding blocks 403 on the surfaces of the two sliding rails 402, the fixed plate 407 can be moved when the two sliding rails 402 move, the signal generator body 2 is clamped, the friction force can be increased through the anti-slip pad 13 on the surface of the fixing plate 407, the situation that the signal generator body 2 slides is avoided, the filter 301 connected in the dustproof box can be fixed through the fixing block 303 and the bolt 304, the signal generator can be connected with the filter 301 through the connecting wire 302, the other end of the signal generator is connected with receiving equipment, signals in a specific frequency range can be transmitted or restrained through the filter 301, interference can be filtered, the needed signals are enhanced or useful signals and noise are separated, the safety is improved, when the heat in the protection box 1 is overhigh, a user can start the motor 10 through an external control switch, the motor 10 is powered through an external power supply, the output end of the motor 10 drives the fan blade 12 to rotate, the heat in the protection box 1 can be transferred to the outside through the heat dissipation hole 9, avoid the interior too high temperature of protection box 1, can fix cylinder 401 and motor 10 through mounting bracket 11, when avoiding receiving external impact, lead to motor 10 and cylinder 401 displacement, improved stability.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be appreciated by persons skilled in the art that the present utility model is not limited to the specific embodiments described above, and that the above description and illustrations are merely illustrative of the principles of this utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined by the appended claims.

Claims

1. The utility model provides a signal generator protector based on FPGA which characterized in that: the anti-interference device comprises a protection box (1), wherein the inner wall of the protection box (1) is fixedly connected with a signal generator body (2), an anti-interference mechanism (3) is arranged on the inner wall of the protection box (1), and a fixing mechanism (4) is arranged on the inner wall of the protection box (1);

The anti-interference mechanism (3) comprises a filter (301), the filter (301) is fixedly connected to the inner wall of the protection box (1), connecting wires (302) are fixedly connected to the two ends of the filter (301), the number of the connecting wires (302) is four, one end of each connecting wire (302) is fixedly connected to the surface of the signal generator body (2), the connecting wires (302) at the other end of the filter (301) penetrate through the inner wall of the protection box (1), a fixed block (303) is fixedly connected to the surface of the filter (301), bolts (304) are connected to the inner wall of the fixed block (303) in a threaded mode, and the number of the bolts (304) is two;

The utility model provides a fixed establishment (4) is including cylinder (401), cylinder (401) fixedly connected with is in the inner wall of protection box (1), the inner wall fixedly connected with slide rail (402) of protection box (1), the quantity of slide rail (402) is two, the surface sliding connection of slide rail (402) has slider (403), the quantity of slider (403) is two, the surface of slide rail (402) and the inner wall contact of spout, one side fixedly connected with draw runner of slider (403), the inner wall fixedly connected with spliced pole (405) of protection box (1), the surface cover of spliced pole (405) is equipped with gear (406), the surface of gear (406) meshes with the inner wall of rack (404), the top fixedly connected with fixed plate (407) of slider (403), the surface fixedly connected with signal generator body (2) of fixed plate (407).

2. An FPGA-based signal generator guard as claimed in claim 1, wherein: the bottom of the protection box (1) is fixedly connected with support columns (5), and the number of the support columns (5) is a plurality of.

3. An FPGA-based signal generator guard as claimed in claim 2, wherein: the top of support column (5) fixedly connected with bottom plate (6), the fixed surface of bottom plate (6) is connected with shock pad (7).

4. A FPGA-based signal generator guard as claimed in claim 3, wherein: the surface of the bottom plate (6) is provided with two grooves (8), and one side of the protection box (1) is provided with a heat dissipation hole (9).

5. The FPGA-based signal generator protection device of claim 4, wherein: the motor (10) is fixedly connected to the top of the bottom plate (6), the mounting frames (11) are fixedly connected to the surface of the motor (10), and the number of the mounting frames (11) is two.

6. The FPGA-based signal generator protection device of claim 5, wherein: the output end of the motor (10) is fixedly connected with fan blades (12), and the number of the fan blades (12) is four.

7. An FPGA-based signal generator guard as claimed in claim 1, wherein: the surface of the fixed plate (407) is fixedly connected with an anti-slip pad (13), and the anti-slip pad (13) is made of rubber.