Concrete aggregate intelligent detection device and method based on machine vision

Abstract

The invention relates to the technical field of intelligent detection, and discloses a concrete aggregate intelligent detection device based on machine vision, the concrete aggregate intelligent detection device comprises a bottom support plate and an arc-shaped member on one side of the bottom support plate, a gear member is arranged on one side, away from the bottom support plate, of the arc-shaped member, and a high-definition industrial camera is fixedly mounted on one side, close to the bottom support plate, of a mounting rack. A conveying frame is mounted on the side, close to the arc-shaped piece, of the bottom supporting plate, a U-shaped support is arranged on the side, away from the conveying frame, of the mounting plate, a discharging box is fixedly connected to the side, away from the mounting plate, of the supporting piece, and a partition strip is mounted on the side, away from the mounting plate, of the discharging box. According to the invention, the gear piece operates on the arc-shaped piece in an arc-shaped manner to drive the high-definition industrial camera on one side to carry out multi-view shooting detection, and different from traditional multi-device detection, the gear piece drives the high-definition industrial camera to operate on the arc-shaped piece for detection, so that multi-angle device use in space is met; and the cost investment of the device on detection equipment is also reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent detection, in particular to a concrete aggregate intelligent detection device and method based on machine vision. BACKGROUND

[0002] The concrete aggregate detection device based on image recognition technology realizes the automatic detection of key indicators (such as particle size, particle type, and clay content) of aggregates by collecting visual information of aggregates, combining image processing and intelligent algorithms. The core is to convert "visual signals" into "data indicators", which has the advantages of non-contact, high efficiency, traceability, etc.

[0003] The process in the detection device is usually captured by a high-definition industrial camera (the resolution is usually more than 20 million pixels): to ensure the capture of the details (such as texture, color, and corners) and overall morphology of the aggregate surface, the top light source system usually uses ring light, strip light or surface light, which can eliminate shadows and reflections by adjusting brightness and color temperature, and ensure image contrast (for example, when detecting dark aggregates, use high-brightness white light to avoid detail loss), uniform speed of aggregate conveying, and clear imaging of single particles or small batches of aggregates under the lens to avoid particle overlap (some devices are equipped with a vibration dispersion mechanism to separate the stacked aggregates in advance).

[0004] However, the above-mentioned concrete aggregate intelligent detection device based on machine vision has the following problems in actual use: on the one hand, multiple machine vision angles are used for joint shooting detection during the detection process, which requires additional picture processors for analysis and troubleshooting, resulting in high detection cost; on the other hand, the aggregate is prone to stacking during the transmission process, which is not convenient for machine analysis and detection. Therefore, we propose a concrete aggregate intelligent detection device and method based on machine vision. SUMMARY

[0005] (I) Technical problems solved

[0006] In view of the shortcomings of the prior art, the present application provides a concrete aggregate intelligent detection device and method based on machine vision, which solves the problems of high detection cost and aggregate stacking affecting detection.

[0007] (II) Technical solutions

[0008] In order to achieve the above object, the present application is realized by the following technical scheme: A concrete aggregate intelligent detection device based on machine vision, comprising a bottom support plate and an arc-shaped member on one side of the bottom support plate, wherein the side of the bottom support plate close to the arc-shaped member is provided with a sliding groove, and the sliding groove is arranged inside the bottom support plate; the side of the sliding groove close to the arc-shaped member is provided with a moving platform; the side of the moving platform close to the arc-shaped member is fixedly connected to the arc-shaped member; the side of the arc-shaped member away from the bottom support plate is provided with a gear member; the side of the arc-shaped member close to the gear member is fixedly installed with a rack; the side of the rack perpendicular to the bottom support plate is installed with a mounting bracket, and the side of the mounting bracket close to the gear member is fixedly connected to the gear member; the side of the bottom support plate close to the arc-shaped member is installed with a conveying frame, and the conveying frame is fixedly connected to the inside of the arc-shaped member and the bottom support plate; the side of the conveying frame perpendicular to the arc-shaped member is installed with a mounting plate, and the side of the mounting plate close to the conveying frame is fixedly connected to the conveying frame; the side of the mounting plate away from the conveying frame is provided with a U-shaped support; the side of the U-shaped support close to the mounting plate is fixedly installed with a second rotating rod, and the side of the second rotating rod close to the mounting plate is inserted into the mounting plate and movably connected to the mounting plate; the side of the U-shaped support away from the second rotating rod is installed with a supporting member; the side of the supporting member away from the mounting plate is fixedly connected with a discharge box; the side of the discharge box away from the mounting plate is installed with a partition strip, and the side of the partition strip close to the discharge box is fixedly connected in the discharge box.

[0009] Preferably, the side of the moving platform close to the mounting plate is movably installed with a first rotating rod, and the first rotating rod is connected to the inside of the sliding groove; the side of the first rotating rod away from the moving platform is inserted into the sliding groove; the side of the bottom support plate close to the sliding groove is fixedly installed with a first motor, and the side of the first motor close to the first rotating rod is fixedly connected to the first rotating rod.

[0010] Preferably, the side of the second rotating rod away from the U-shaped support is fixedly connected with a third motor; the side of the third motor close to the mounting plate is fixedly connected to the mounting plate; the side of the U-shaped support close to the supporting member is fixedly installed with a fixed rod, and the side of the fixed rod close to the supporting member is inserted into the inside of the U-shaped support.

[0011] Preferably, the side of the discharge box close to the mounting plate is installed with a limiting rod, and the side of the limiting rod close to the discharge box is fixedly connected to the discharge box; the side of the discharge box away from the limiting rod is provided with an inlet, and the inlet is arranged on the discharge box.

[0012] Preferably, the gear part is provided with a rotating shaft rod near the side of the mounting frame, and the rotating shaft rod is movably connected to the center of the gear part, the rotating shaft rod is fixedly connected with the motor four away from the side of the mounting frame, the rotating shaft rod is provided with an inclined rod vertically away from the side of the motor four, and the inclined rod is fixedly connected to the rotating shaft rod near the side of the rotating shaft rod, and the inclined rod is movably connected with the auxiliary wheel away from the side of the mounting frame.

[0013] Preferably, the arc-shaped part is provided with an inner slide away from the side of the rack, and the inner slide is fixedly connected to the arc-shaped part near the side of the arc-shaped part, the motor four is fixedly connected with an L-shaped mounting strip near the side of the conveying frame, the L-shaped mounting strip is provided with a sliding block near the side of the inner slide, and the sliding block is movably connected in the inner slide away from the side of the inner slide.

[0014] Preferably, the conveying frame is movably connected with a roller part away from the side of the bottom supporting plate, the roller part is movably connected with a conveying belt away from the side of the mounting plate, the conveying frame is fixedly connected with the motor two away from the side of the roller part, and the roller part is movably connected with the motor two through the conveying frame away from the side of the conveying frame.

[0015] Preferably, the conveying belt is provided with a backing plate near the side of the discharging box, and the backing plate is fixedly connected to the discharging box near the side of the discharging box, the conveying belt is provided with a storage box away from the side of the backing plate, and the storage box is fixedly connected to the bottom supporting plate near the side of the bottom supporting plate, and the mounting plate is fixedly connected with a control display mechanism vertically away from the side of the conveying frame.

[0016] Preferably, a kind of concrete aggregate intelligent detection method based on machine vision includes the following steps:

[0017] Uniform speed conveying aggregate, uniform speed paving through discharging box to conveying belt in conveying frame, ensure single particle or small batch aggregate clear imaging under lens, avoid particle overlap;

[0018] Multi-angle capture aggregate, through high-definition industrial camera to the aggregate on conveying belt ring capture shooting, ensure capture aggregate surface details, such as texture, color, corner and overall morphology;

[0019] Image acquisition, when aggregate is uniformly distributed on conveying belt, it can be temporarily defined transmission, after camera all-around capture shooting, its camera shooting analog signal is converted into digital signal, high-speed transmission to control display mechanism, transmission rate needs to match camera frame rate, avoid data lag;

[0020] Feature comparison and management, through algorithm to extract key visual features of aggregate, such as contour perimeter, area, longest axis and shortest axis length, corner number, color average, etc., store detection results, such as image, data, time stamp, support to generate report, historical query and interface with production system.

[0021] In summary, the technical effects and advantages of the present application are:

[0022] 1、In the present application, the top of the bottom support plate is movably connected with an arc-shaped member, and a gear member for cooperation is movably connected on the arc-shaped member. The high-definition industrial camera on one side is driven to perform multi-view shooting detection through the arc line operation of the gear member on the arc-shaped member. Unlike traditional multi-device detection, the gear member drives the high-definition industrial camera to operate on the arc-shaped member for detection, which meets the spatial multi-angle device use and reduces the cost investment of the device for detection equipment, thereby improving the overall use convenience of the device.

[0023] 2、In the present application, the mounting plate is fixedly installed on one side of the bottom support plate, the U-shaped support is installed on the mounting plate, the support member is installed on one side of the U-shaped support, and the discharge box is installed on the top of the support member. The discharge box is connected to the discharge box through the up-down swinging of the U-shaped support to slightly shake left and right, which can shake and distribute the aggregate in the discharge box to avoid the stacking phenomenon affecting the subsequent equipment detection, thereby improving the overall practical and convenient effect of the device.

[0024] 3、In the present application, a plurality of partition strips are arranged on the inner side of the discharge box. After the whole shaking of the discharge box is driven by the discharge box bottom assembly, the internal aggregate is dispersed and discharged in an orderly manner, which reduces the workload of manual distribution of the operator to some extent and improves the overall intelligent use effect of the device. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the overall structure schematic diagram of the concrete aggregate intelligent detection device based on machine vision of the present application;

[0026] Figure 2 It is the overall structure schematic diagram of the discharge box and the mounting plate of the present application;

[0027] Figure 3 It is the overall structure schematic diagram of the bottom support plate and the conveying frame of the present application;

[0028] Figure 4 It is the overall structure schematic diagram of the arc-shaped member of the present application;

[0029] Figure 5 It is the overall structure schematic diagram of the gear member of the present application;

[0030] Figure 6 It is the overall structure schematic diagram of the support member of the present application.

[0031] As shown in the figure: 1, the bottom support plate; 101, sliding groove; 102, the rotating rod; 103, the moving platform; 104, motor one; 2, the conveying frame; 201, the roller; 202, the conveyor belt; 203, motor two; 3, the arc-shaped piece; 301, the rack; 302, the inner slide; 4, high-definition industrial camera; 401, the mounting bracket; 5, the discharge box; 501, the partition strip; 502, the inlet; 503, the pad; 504, the limiting rod; 6, the mounting plate; 601, motor three; 602, the support; 603, the U-shaped support; 604, the rotating rod; 605, the fixed rod; 7, the control display mechanism; 8, the gear; 801, motor four; 802, the rotating shaft; 803, the inclined rod; 804, the auxiliary wheel; 805, the L-shaped mounting strip; 806, the sliding block; 9, the storage box. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0033] Reference Figures 1-6 The machine vision-based concrete aggregate intelligent detection device shown in the figure comprises a bottom support plate 1 and an arc-shaped piece 3 on one side of the bottom support plate 1, and the implementation is as shown below:

[0034] Embodiment one:

[0035] The control display mechanism 7 is fixedly installed on one side of the mounting plate 6 perpendicular to the conveying frame 2. The conveying frame 2 is installed with the mounting plate 6 on one side perpendicular to the arc-shaped piece 3. The U-shaped support 603 is arranged on the side of the mounting plate 6 away from the conveying frame 2. The rotating rod two 604 is fixedly installed on the side of the U-shaped support 603 close to the mounting plate 6. The rotating rod two 604 is inserted into the mounting plate 6 on the side close to the mounting plate 6 and movably connected to the mounting plate 6. The support 602 is installed on the side of the U-shaped support 603 away from the rotating rod two 604. The discharge box 5 is fixedly connected to the side of the support 602 away from the mounting plate 6. The partition strip 501 is installed on the side of the discharge box 5 away from the mounting plate 6. The partition strip 501 is fixedly connected in the discharge box 5 on the side close to the discharge box 5. The limiting rod 504 is installed on the side of the discharge box 5 close to the mounting plate 6.

[0036] The uniform paving is sent to the conveying belt 202 in the conveying frame 2 through the discharge box 5, wherein the internal aggregate is uniformly transported to the conveying belt 202 under the dispersion of the partition strip 501 after the discharge box 5 is shaken slightly through the U-shaped support 603 of the bottom swinging assembly, and the step can ensure that single particles or small batches of aggregates are clearly imaged under the lens, and the overlapping of particles is avoided, and the limiting rod 504 at the bottom of the discharge box 5 can also ensure that the discharge box 5 is always in a stable state during shaking.

[0037] Embodiment two:

[0038] The gear part 8 is arranged away from the bottom support plate 1, the rack 301 is fixedly installed on the side of the arc-shaped part 3 close to the gear part 8, the gear part 8 is movably connected to the rack 301 on the side close to the rack 301, the mounting bracket 401 is installed on the side of the rack 301 away from the bottom support plate 1, and the mounting bracket 401 is fixedly connected to the gear part 8 on the side close to the gear part 8, the high-definition industrial camera 4 is fixedly installed on the side of the mounting bracket 401 close to the bottom support plate 1, the conveying frame 2 is installed on the side of the bottom support plate 1 close to the arc-shaped part 3, and the conveying frame 2 is fixedly connected to the bottom support plate 1 on the inner side of the arc-shaped part 3.

[0039] The high-definition industrial camera 4 is driven by the gear part 8 to move in a ring shape on the arc-shaped part 3, and the aggregate on the conveying belt 202 is captured and shot in a ring shape, the gear part 8 is driven by the motor four 801 to move in an arc line on the arc-shaped part 3, and the high-definition industrial camera 4 on the upper side of the conveying belt 202 captures and detects, so that the surface details of the aggregate in the device, such as texture, color, edges and overall shape, are ensured.

[0040] Embodiment three:

[0041] The sliding groove 101 is arranged on the side of the bottom support plate 1 close to the arc-shaped part 3, and the sliding groove 101 is arranged in the interior of the bottom support plate 1, the moving platform 103 is arranged on the side of the sliding groove 101 close to the arc-shaped part 3, and the moving platform 103 is fixedly connected to the arc-shaped part 3 on the side close to the arc-shaped part 3.

[0042] Through the arrangement of the sliding groove 101, the arc-shaped part 3 can slide on the top of the bottom support plate 1 in a longitudinal direction, and the aggregate moving on the conveying belt 202 is ensured to be captured and detected in a full-range follow-up mode.

[0043] The electrical elements appearing in the text are all connected with the main controller and 220V mains in the outside world, and the main controller can be a conventional known device such as a computer.

[0044] Finally, it should be noted that the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that the technical solutions described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalent features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A machine vision-based intelligent detection device for concrete aggregate, comprising a bottom support plate (1) and an arc-shaped member (3) on one side of the bottom support plate (1), characterized in that: The side close to the arc-shaped piece (3) of the bottom supporting plate (1) is provided with a sliding groove (101), and the sliding groove (101) is arranged inside the bottom supporting plate (1); the side close to the arc-shaped piece (3) of the sliding groove (101) is provided with a moving platform (103); the side close to the arc-shaped piece (3) of the moving platform (103) is fixedly connected to the arc-shaped piece (3); the side away from the bottom supporting plate (1) of the arc-shaped piece (3) is provided with a gear piece (8); the side close to the gear piece (8) of the arc-shaped piece (3) is fixedly installed with a gear rack (301); the side close to the gear rack (301) of the gear piece (8) is movably connected to the gear rack (301); the side perpendicular to the bottom supporting plate (1) of the gear rack (301) is installed with a mounting bracket (401), and the side close to the gear piece (8) of the mounting bracket (401) is fixedly connected to the gear piece (8); the side close to the bottom supporting plate (1) of the mounting bracket (401) is fixedly installed with a high-definition industrial camera (4); the side close to the arc-shaped piece (3) of the bottom supporting plate (1) is installed with a conveying frame (2), and the conveying frame (2) is fixedly connected to the inside of the arc-shaped piece (3) and the bottom supporting plate (1); the side perpendicular to the arc-shaped piece (3) of the conveying frame (2) is installed with a mounting plate (6), and the side close to the conveying frame (2) of the mounting plate (6) is fixedly connected to the conveying frame (2); the side away from the conveying frame (2) of the mounting plate (6) is provided with a U-shaped support (603); the side close to the mounting plate (6) of the U-shaped support (603) is fixedly installed with a rotating rod two (604), and the side close to the mounting plate (6) of the rotating rod two (604) is inserted into the mounting plate (6) and movably connected to the mounting plate (6); the side away from the rotating rod two (604) of the U-shaped support (603) is installed with a supporting piece (602); the side away from the mounting plate (6) of the supporting piece (602) is fixedly connected with a discharging box (5); the side away from the mounting plate (6) of the discharging box (5) is installed with a partition strip (501), and the side close to the discharging box (5) of the partition strip (501) is fixedly connected in the discharging box (5).

2. The machine vision-based concrete aggregate intelligent detection device according to claim 1, characterized in that: The side close to the mounting plate (6) of the moving platform (103) is movably installed with a rotating rod one (102), and the rotating rod one (102) is arranged inside the sliding groove (101) and is connected to the rotating rod one (102) through penetration; the side away from the moving platform (103) of the rotating rod one (102) is inserted into the sliding groove (101) and is connected to the sliding groove (101); the side close to the sliding groove (101) of the bottom supporting plate (1) is fixedly installed with a motor one (104), and the side close to the rotating rod one (102) of the motor one (104) is fixedly connected to the rotating rod one (102).

3. The machine vision-based concrete aggregate intelligent detection device according to claim 1, characterized in that: The rotating rod two (604) is fixedly connected with the motor three (601) away from one side of the U-shaped support (603), the motor three (601) is fixedly connected on the mounting plate (6) on the side close to the mounting plate (6), the U-shaped support (603) is fixedly installed with the fixed rod (605) on the side close to the support (602), and the fixed rod (605) is installed in the inside of the U-shaped support (603) on the side close to the support (602).

4. The machine vision-based concrete aggregate intelligent detection device according to claim 1, characterized in that: The discharge box (5) is installed with the limiting rod (504) on the side close to the mounting plate (6), and the limiting rod (504) is fixedly connected on the discharge box (5) on the side close to the discharge box (5), the discharge box (5) is provided with the feeding port (502) on the side away from the limiting rod (504), and the feeding port (502) is arranged on the discharge box (5).

5. The machine vision-based concrete aggregate intelligent detection device according to claim 1, characterized in that: The gear part (8) is installed with the rotating shaft rod (802) on the side close to the mounting frame (401), and the rotating shaft rod (802) is movably connected with the gear part (8) at the central position of the gear part (8), and the rotating shaft rod (802) is fixedly installed with the motor four (801) on the side away from the mounting frame (401).

6. The machine vision-based concrete aggregate intelligent detection device according to claim 5, characterized in that: The rotating shaft rod (802) is installed with the inclined rod (803) on the side perpendicular to the motor four (801), and the inclined rod (803) is fixedly connected on the rotating shaft rod (802) on the side close to the rotating shaft rod (802), and the inclined rod (803) is movably installed with the auxiliary wheel (804) on the side away from the mounting frame (401).

7. The machine vision-based concrete aggregate intelligent detection device according to claim 5, characterized in that: The arc-shaped part (3) is provided with the inner slide (302) on the side away from the rack (301), and the inner slide (302) is fixedly connected on the arc-shaped part (3) on the side close to the arc-shaped part (3), and the motor four (801) is fixedly connected with the L-shaped mounting strip (805) on the side close to the conveying frame (2), and the L-shaped mounting strip (805) is provided with the sliding block (806) on the side close to the inner slide (302), and the sliding block (806) is movably connected in the inner slide (302) on the side close to the inner slide (302). 8.The machine vision-based concrete aggregate intelligent detection device according to claim 1, characterized in that: The conveying frame (2) is movably installed with the roller part (201) on the side away from the bottom supporting plate (1), the roller part (201) is movably connected with the conveying belt (202) on the side away from the mounting plate (6), the conveying frame (2) is fixedly installed with the motor two (203) on the side away from the roller part (201), and the roller part (201) is movably connected with the motor two (203) through the conveying frame (2) on the side close to the conveying frame (2).

9. The machine vision-based concrete aggregate intelligent detection device according to claim 8, characterized in that: The conveying belt (202) is provided with the backing plate (503) on the side close to the discharge box (5), and the backing plate (503) is fixedly connected on the discharge box (5) on the side close to the discharge box (5), the conveying belt (202) is provided with the storage box (9) on the side away from the backing plate (503), and the storage box (9) is fixedly connected on the bottom supporting plate (1) on the side close to the bottom supporting plate (1), and the mounting plate (6) is fixedly installed with the control display mechanism (7) on the side perpendicular to the conveying frame (2). 10.A method for intelligent detection of concrete aggregate based on machine vision, characterized in that, The method comprises the following steps: S1. Uniformly conveying the aggregate, through the discharge box (5) to uniformly lay on the conveyor belt (202) in the conveying frame (2), to ensure that single particles or small batches of aggregate are clearly imaged under the lens, avoiding particle overlap; S2. Multi-angle capture of aggregate, through the high-definition industrial camera (4) to capture and shoot the aggregate on the conveyor belt (202) in a ring shape, to ensure that the surface details of the captured aggregate, such as texture, color, corners and overall shape, are captured; S3. Image acquisition, when the aggregate is uniformly distributed on the conveyor belt (202), the transmission can be temporarily stopped, after the camera captures the image in all directions, the analog signal of the camera shooting is converted into digital signal, which is transmitted to the control display mechanism at high speed, the transmission rate needs to match the camera frame rate to avoid data lag; S4. Feature comparison and management, through algorithm to extract the key visual features of the aggregate, such as contour perimeter, area, longest axis and shortest axis length, corner number, color average, etc., to store the detection results, such as image, data, timestamp, to support report generation, historical query and interface with production system.

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