Millimeter wave radar-based stock bin three-dimensional visual detection device

Abstract

The utility model discloses a stock bin three-dimensional visual detection device based on millimeter wave radar, and belongs to the technical field of radar level meters. According to the technical scheme for solving the problems, the device comprises a bin pipe, a radar measuring unit is arranged on the left side in the bin pipe, a pitch angle swinging unit is arranged on the right side in the bin pipe, a mounting hole communicated with the outside is formed in the upper portion of the outer wall of the bin pipe, protection covers are arranged on the left side and the right side of the bin pipe, and a first fixing device is arranged through two supporting columns; the second fixing device is provided with an azimuth angle rotating unit, and the first communication line and the second communication line are respectively connected with the radar measuring unit and the pitch angle swinging unit through the mounting holes. According to the stock bin three-dimensional visual detection device based on the millimeter wave radar, the azimuth angle rotating unit and the pitch angle swinging unit are arranged, the radar is driven to complete wave velocity level and pitch angle changes, stock bin three-dimensional scanning imaging from a single point to a plane and a three-dimensional space is achieved, the problem of a measurement blind area is avoided, and the measurement accuracy is improved. And the resolution ratio of stock bin detection is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of radar level gauges, and more specifically, to a three-dimensional visualization detection device for a silo based on a millimeter-wave radar. Background Art

[0002] Millimeter-wave radar is a radar technology that uses millimeter waves for ranging and imaging. It has the characteristics of strong penetration, high resolution, and little influence of temperature and humidity, and can realize object detection and imaging in complex environments. Millimeter-wave radar has certain advantages in measuring silos. Millimeter-wave radar does not need to directly contact the materials in the silo, and its fast scanning ability enables it to monitor the changes of materials in real time, measure the distance, volume, and weight of objects in the silo; it has strong penetration ability for some common environmental interferences, such as dust, smoke, humidity, etc., and is not affected by light conditions, and can work stably in dark, light-changing, or strong light irradiation conditions, and can cope with the complex and changeable silo environment; the wavelength of millimeter-wave radar is short, which can achieve sub-millimeter-level measurement accuracy, realize three-dimensional imaging of the materials inside the silo, and display the distribution of materials in the silo, providing an efficient and reliable technical means for silo management and detection.

[0003] Millimeter-wave radar has obvious advantages in three-dimensional visualization detection of silos, such as non-contact measurement, strong real-time performance, all-weather operation, strong penetration, and high accuracy, but it also faces some limitations. In actual silo detection, the complex internal structure and various surface characteristics of materials are likely to cause multipath effects, making the signal path complex and reducing the detection resolution. At the same time, in some angle or position detections, there may be blind spot problems, resulting in inaccurate detection results. Therefore, aiming at the problems of resolution limitation and measurement blind spots, how to comprehensively and accurately detect the silo situation is a key problem faced by those skilled in the art. Summary of the Invention

[0004] In order to overcome the deficiencies of the above-mentioned prior art, the utility model provides a three-dimensional visualization detection device for a silo based on a millimeter-wave radar, which solves the problems of resolution limitation and measurement blind spots, makes the resolution of silo detection higher, greatly improves the adaptability of the three-dimensional visualization detection scenario of the silo, and is convenient for installation, disassembly, and movement.

[0005] The technical solution adopted by the present utility model is as follows: A three-dimensional visualization detection device for a silo based on a millimeter-wave radar, including a silo pipe. On the left side inside the silo pipe, a radar measurement unit is provided. On the right side of the silo pipe, a pitch angle swing unit is provided. Above the outer wall of the silo pipe, there is an installation hole communicating with the outside. On the left and right sides of the outer wall of the silo pipe, protective covers are provided. A first fixing device is provided through two support columns. Above the first fixing device, there is a transfer slot for connecting a second fixing device. The second fixing device is provided with an azimuth angle rotation unit. A first communication line and a second communication line are respectively connected to the radar measurement unit and the pitch angle swing unit through the installation hole.

[0006] As a preferred technical solution of the present utility model, inside the radar measurement unit, a focusing module, a millimeter-wave radar module, a data communication module, and a power switch module are sequentially arranged from top to bottom. The power switch module is connected in parallel with the bottom of the silo pipe through two connecting columns. The data communication module is connected in parallel with the power switch module through 1 connecting column. The millimeter-wave radar module is connected in parallel with the data communication module through 1 connecting column. The focusing module includes a narrow-wave optical lens, which is connected in parallel with the bottom of the silo pipe through 5 connecting columns and is located above the millimeter-wave radar module, thereby effectively filtering out the spatial interference around the target to be measured, providing accurate distance information, and achieving a high spatial angle resolution.

[0007] As a preferred technical solution of the present utility model, the pitch angle swing unit includes a servo motor, a transfer plate, a first reinforcing rib, a glass support column, and a reflector. The transfer plate is connected to the servo motor and the glass support column respectively through the first reinforcing rib. The reflector is fixed by the glass support column and is installed at a 45° angle. The glass support column has a low reflectivity and few clutter, reducing the situation of signal occlusion of the radar body.

[0008] As a preferred technical solution of the present utility model, the azimuth angle rotation unit includes a rotation motor, an installation slot, a first communication line, and a second communication line. Inside the rotation motor, a slip ring is provided to facilitate the transfer of the first communication line and the second communication line and prevent cable coiling during the rotation process.

[0009] As a preferred technical solution of the present utility model, the radar measurement unit is fixed on the left side of the sealed and shielded silo pipe through a connecting column. The pitch angle swing unit is fixed on the right side of the sealed and shielded silo pipe. The driving structure of the pitch angle swing unit drives the radar measurement unit to accurately obtain the angle information in the coordinate, that is, the horizontal angle. Protective covers are provided on the left and right sides of the silo pipe, and a first fixing device is provided through support columns. The protective covers, support columns, and fixing devices play a role in fixing the millimeter-wave radar and the stockyard.

[0010] As a preferred technical solution of the present utility model, the support column includes a first support hole, a second support hole and a third support hole. The first support hole is respectively connected to the protective covers on the left and right sides of the silo pipe. The second support hole is fixed to the wall of the silo. The third support hole is respectively connected to the upper ends of both sides of the first fixing device, thereby enhancing the protection ability of the silo pipe during use.

[0011] As a preferred technical solution of the present utility model, the first fixing device includes a fixing plate, a first connection hole and a second reinforcing rib. The fixing plate is connected to the third support hole. The first connection hole is connected to the transfer groove. The second reinforcing rib includes a support seat reinforcing rib, which can reinforce the bottom of the wooden board and improve the overall safety of the wooden board.

[0012] As a preferred technical solution of the present utility model, the azimuth rotation unit is connected to the second fixing device through a transfer groove. The driving structure of the azimuth rotation unit drives the radar measurement unit to accurately obtain the angle information in the coordinate, that is, the pitch angle, avoiding the problem of measurement blind spots and greatly improving the adaptability of the three-dimensional visualization detection scenario of the silo.

[0013] As a preferred technical solution of the present utility model, the first communication line and the second communication line in the azimuth rotation unit are respectively connected to the radar measurement unit and the pitch angle swing unit through the mounting holes, driving the radar measurement unit to complete the wave speed horizontal and pitch angle changes, realizing the three-dimensional scanning imaging of the silo from a single point to a plane and a three-dimensional space, and making the resolution of the silo detection higher.

[0014] Compared with the prior art, the present utility model provides a three-dimensional visualization detection device for a silo based on a millimeter-wave radar, having the following beneficial effects:

[0015] This three-dimensional visualization detection device for a silo based on a millimeter-wave radar, by arranging the radar measurement unit and the pitch angle swing unit on the left and right sides of the silo pipe respectively, and setting the reflector at 45°, can effectively filter out the spatial interference around the target to be measured, provide accurate distance information, and achieve a higher spatial angle resolution. By arranging the radar measurement unit and the pitch angle swing unit to be connected to the azimuth rotation unit through the mounting holes, during use, the slip ring facilitates the monitoring device to accurately obtain the two angle information in the coordinate, complete the wave speed horizontal and pitch angle changes, realize the three-dimensional scanning imaging of the silo from a single point to a horizontal and three-dimensional space, avoid the problem of measurement blind spots, and make the resolution of the silo detection higher.

[0016] The present utility model improves the adaptability of the three-dimensional visualization detection scenario of the silo by arranging protective covers on the left and right sides of the outer wall of the silo pipe, setting the first fixing device through two support columns, arranging a transfer groove above the first fixing device and connecting the second fixing device. The connection is more reasonable, the structure is simple, the cost is reduced, and the installation, disassembly and movement are convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the radar measurement unit of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the pitch angle swing unit of the utility model;

[0021] Figure 4 This is a schematic diagram of the support column structure of the utility model;

[0022] Figure 5 This is a schematic structural diagram of the first fixing device of the utility model;

[0023] Figure 6 This is a structural diagram of the azimuth rotation unit of the utility model.

[0024] Description of the accompanying drawings:

[0025] 1. Warehouse management; 2. Radar measurement unit; 3. Pitch angle swing unit; 4. Mounting hole; 5. Protective cover; 6. Support column; 7. First fixing device; 8. Adapter slot; 9. Second fixing device; 10. Azimuth rotation unit; 1003. First communication line; 1004. Second communication line; 201. Focusing module; 202. Millimeter wave radar module; 203. Data communication module; 204. Power switch module; 205. Connecting column; 301. Servo motor; 302. Adapter plate; 303, first reinforcing rib; 304, glass pillar; 305, reflector; 3010, first motor driver; 1001, rotating motor; 1002, mounting slot; 1003, first communication line; 1004, second communication line; 1005, slip ring; 1006, second motor driver; 601, first support hole; 602, second support hole; 603, third support hole; 701, fixing plate; 702, first connecting hole; 703, second reinforcing rib. DETAILED DESCRIPTION

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0027] The following further details the features of the present utility model and other related features through embodiments in conjunction with the accompanying drawings for the convenience of understanding by those in the same industry: As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 shown, the markings in the figure are respectively represented as: warehouse management 1, radar measurement unit 2, pitch angle swing unit 3, mounting hole 4, protective cover 5, support column 6, first fixing device 7, transfer slot 8, second fixing device 9, azimuth rotation unit 10, first communication line 1003, second communication line 1004, focusing module 201, millimeter wave radar module 202, data communication module 203, power switch module 204, connecting column 205, servo motor 301, transfer board 302, first reinforcing rib 303, glass support column 304, reflector 305, first motor driver 3010, 1 rotation motor 1001, mounting slot 1002, first communication line 1003, second communication line 1004, slip ring 1005, second motor driver 1006, first support hole 601, second support hole 602, third support hole 603, fixing plate 701, first connection hole 702, second reinforcing rib 703.

[0028] Embodiment 1: Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 , this embodiment discloses a three-dimensional visualization detection device for a silo based on a millimeter wave radar, including a warehouse management 1, a radar measurement unit 2 is arranged on the left side inside the warehouse management 1, and a pitch angle swing unit 3 is arranged on the right side;

[0029] Among them, inside the radar measurement unit 2, a focusing module 201, a millimeter-wave radar module 202, a data communication module 203, and a power switch module 204 are sequentially arranged from top to bottom. The power switch module 204 is connected in parallel to the bottom of the bin tube 1 through two connecting posts 205. The data communication module 203 is connected in parallel to the power switch module 204 through one connecting post 205. The millimeter-wave radar module 202 is connected in parallel to the data communication module 203 through one connecting post 205. The focusing module 201 includes a narrow-wave optical lens, is connected in parallel to the bottom of the bin tube 1 through five connecting posts 205, and is located above the millimeter-wave radar module 202;

[0030] The pitch angle swing unit 3 includes a servo motor 301, a transfer board 302, a first reinforcing rib 303, a glass support 304, and a reflector 305;

[0031] The transfer board 302 is connected to the servo motor 301 and the glass support 304 respectively through the first reinforcing rib 303;

[0032] The reflector 305 is fixed by the glass support 304 and is at a 45° angle. The glass support has a low reflectivity and less clutter, reducing the situation of signal occlusion of the radar body;

[0033] Furthermore, the drive structure of the pitch angle swing unit 3 drives the radar measurement unit to accurately obtain the angular information in the coordinate, that is, the horizontal angle.

[0034] Protective covers 5 are arranged on the left and right sides of the bin tube 1 and are respectively connected to the support columns 6 through fixing screws. The protective covers 5 can play a role in protecting the bin tube 1 body, thereby enhancing the protection ability of the bin tube during use.

[0035] Among them, the support column 6 includes a first support hole 601, a second support hole 602, and a third support hole 603; furthermore, the first support hole 601 is respectively connected to the protective covers 5 on the left and right sides of the bin tube 1, the second support hole 602 is fixed to the wall of the silo, and the third support hole 603 is respectively connected to the upper ends of both sides of the first fixing device 7. The protective cover, the support column, and the fixing device play a role in fixing the millimeter-wave radar to the stockyard;

[0036] Furthermore, the first fixing device 7 includes a fixing plate 701, a first connection hole 702, and a second reinforcing rib 703;

[0037] Among them, the fixing plate 701 is connected to the third support hole 603, the first connection hole 702 is connected to the transfer slot 8, and the second reinforcing rib 703 includes a support rib for reinforcement, which can reinforce the bottom of the wooden board and improve the overall safety of the wooden board.

[0038] An installation hole 4 communicating with the outside is provided above the outer wall of the bin tube 1, and is connected to the azimuth rotation unit 10 outside through a first communication line 1003 and a second communication line 1004;

[0039] The azimuth rotation unit 10 includes a rotating motor 1001, a mounting slot 1002, a first communication line 1003 and a second communication line 1004;

[0040] Furthermore, a slip ring 1005 is provided inside the rotating motor 1001 to facilitate the switching between the first communication line 1003 and the second communication line 1004 and prevent the cable from being twisted during the rotation process;

[0041] The driving structure of the azimuth rotation unit 10 drives the radar measurement unit to accurately obtain the angle information in the coordinates, that is, the pitch angle, avoiding the blind spot problem of millimeter wave radar measurement;

[0042] Furthermore, the second fixing device 9 is connected to the first fixing device 7 via the adapter groove 8;

[0043] The first fixing device 7 and the second fixing device 9 drive the radar measuring unit 2 to complete the changes in wave velocity level and pitch angle, realizing three-dimensional scanning imaging of the silo from a single point to a plane and a three-dimensional space, thereby greatly improving the adaptability of the silo's three-dimensional visualization detection scene.

[0044] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A three-dimensional visualization detection device for a silo based on a millimeter-wave radar, characterized in that: It includes a warehouse management unit (1). Inside the left side of the warehouse management unit (1), there is a radar measurement unit (2). On the right side of the warehouse management unit (1), there is a pitch angle swing unit (3). Above the outer wall of the warehouse management unit (1), there is an installation hole (4) communicating with the outside. On the left and right sides of the outer wall of the warehouse management unit (1), there are protective covers (5), and a first fixing device (7) is arranged through two support columns (6). Above the first fixing device (7), there is a transfer slot (8) connecting to a second fixing device (9). The second fixing device (9) is provided with an azimuth angle rotation unit (10). The first communication line (1003) and the second communication line (1004) are respectively connected to the radar measurement unit and the pitch angle swing unit through the installation hole.

2. The three-dimensional visualization detection device for a silo based on a millimeter-wave radar according to claim 1, characterized in that: Inside the radar measurement unit (2), from top to bottom, there are a focusing module (201), a millimeter wave radar module (202), a data communication module (203), and a power switch module (204) in sequence. The power switch module (204) is connected in parallel with the bottom of the warehouse management unit (1) through two connecting columns (205). The data communication module (203) is connected in parallel with the power switch module (204) through one connecting column (205). The millimeter wave radar module (202) is connected in parallel with the data communication module (203) through one connecting column (205). The focusing module (201) includes a narrow wave optical lens, is connected in parallel with the bottom of the warehouse management unit (1) through five connecting columns (205), and is located above the millimeter wave radar module (202).

3. The three-dimensional visualization detection device for a silo based on a millimeter-wave radar according to claim 1, characterized in that: The pitch angle swing unit (3) includes a servo motor (301), a transfer plate (302), a first reinforcing rib (303), a glass support column (304), and a reflector (305). The transfer plate (302) is connected to the servo motor (301) and the glass support column (304) respectively through the first reinforcing rib (303). The reflector (305) is fixed by the glass support column (304) and is installed at a 45° angle.

4. A three-dimensional visualization detection device for a silo based on a millimeter-wave radar according to claim 1, characterized in that: The azimuth angle rotation unit (10) includes a rotation motor (1001), an installation slot (1002), a first communication line (1003), and a second communication line (1004). Inside the rotation motor (1001), there is a slip ring (1005).

5. The three-dimensional visualization detection device for a silo based on a millimeter-wave radar according to claim 1, characterized in that: The support column (6) includes a first support hole (601), a second support hole (602), and a third support hole (603). The first support hole (601) is respectively connected to the protective covers (5) on the left and right sides of the warehouse management unit (1). The second support hole (602) is fixed to the wall of the silo. The third support hole (603) is respectively connected to the upper ends of both sides of the first fixing device (7).

6. The three-dimensional visualization detection device for a silo based on a millimeter-wave radar according to claim 1, characterized in that: The first fixing device (7) includes a fixing plate (701), a first connection hole (702), and a second reinforcing rib (703). The fixing plate (701) is connected to the third support hole (603). The first connection hole (702) is connected to the transfer slot (8). The second reinforcing rib (703) includes a support seat reinforcing rib.

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