A high-precision imaging detector and its application in environmental detection

Abstract

The present invention discloses a high-precision imaging detector, including a frame, a display is arranged at the middle of the top of the frame, a workpiece storage box is arranged on one side of the display, a support frame is arranged on the other side of the display, and a CCD camera is arranged on the top of the support frame; a bottom plate is arranged below the CCD camera and at the top of the frame, a workpiece shaking and placing mechanism is arranged on the top of the bottom plate, and a residual water removal mechanism is arranged on one side of the workpiece shaking and placing mechanism; the present invention also discloses an application of a high-precision imaging detector in environmental detection. The present invention can detect a larger number of workpieces at one time, and does not need to clean the surface of the workpiece separately, and can detect in batches, greatly improving the detection speed and efficiency; at the same time, the accuracy of imaging detection can be improved by using the CCD camera.

Description

Technical Field

[0001] The present invention relates to the field of imaging detection, and in particular to a high-precision imaging detector and its application in environmental detection. Background Art

[0002] Imaging detectors are usually used in scientific research, industrial production, medical diagnosis and other fields. Its main function is to analyze and detect the structure, properties, state, etc. of objects in detail by imaging them with high precision. In daily life and industrial production, accurate and rapid detection of the quality and performance of objects has become an important demand. However, traditional detection instruments such as microscopes and optical instruments often cannot meet these requirements due to limitations in resolution, accuracy, efficiency, etc. Therefore, an imaging detector that can provide high precision, high resolution, and high efficiency is needed to solve these problems.

[0003] In recent years, with the development of science and technology, the application of optoelectronic technology, data processing technology, artificial intelligence technology, etc. in the field of detection instruments has become more and more extensive. This has given high-precision imaging detectors greater room for development. However, most of the high-precision imaging detectors on the market still have some problems, such as only being able to detect a small number of workpieces at a time and not having the function of treating residual water on the surface of the workpiece, which limits their application in different fields.

[0004] For example, Chinese Patent No. 201410769976.5 discloses an efficient and high-precision imaging detector, in which the opening on the second bracket, the discharging belt and the conveyor belt are used for conveying workpieces, the device on the vertical plate is used to detect and judge whether the workpiece is qualified or not, and the program integration box controls the entire detection process. The detector improves the detection accuracy. However, the above-mentioned imaging detector has the following shortcomings: for some workpieces, such as glass products, metal parts, etc., grease, metal chips or other impurities may be attached during processing, production and transportation. These impurities can be removed by water washing to ensure the surface cleanliness of the parts, but the prior art needs to clean the residual water on the surface of the workpiece separately, resulting in low efficiency. At the same time, only a small number of workpieces can be detected at one time, which is not conducive to improving the detection efficiency.

[0005] Currently, no effective solution has been proposed for the problems in the related technologies. Summary of the invention

[0006] In view of the problems in the related art, the present invention proposes a high-precision imaging detector and its application in environmental detection to overcome the above-mentioned technical problems existing in the existing related art.

[0007] To this end, the specific technical solution adopted by the present invention is as follows:

[0008] According to one aspect of the present invention, there is provided a high-precision imaging detector, comprising a frame, a display is arranged in the middle of the top of the frame, a workpiece storage box is arranged on one side of the display, a support frame is arranged on the other side of the display, and a CCD camera is arranged on the top of the support frame; a bottom plate is arranged below the CCD camera and at the top of the frame, a workpiece shaking and placing mechanism is arranged on the top of the bottom plate, and a residual water cleaning mechanism is arranged on one side of the workpiece shaking and placing mechanism.

[0009] Furthermore, in order to automatically shake the workpieces evenly by shaking to avoid overlapping of the workpieces, and thus efficiently and automatically complete the imaging detection of the workpieces, the workpiece shaking and placing mechanism includes a plurality of first connecting holes arranged at the top of the bottom plate, a workpiece detection box is arranged above the bottom plate, and a plurality of second connecting holes corresponding to the first connecting holes are arranged at the bottom of the workpiece detection box; a flexible rod is arranged between the first connecting hole and the second connecting hole, and connecting blocks are arranged at both ends of the flexible rod, and the two connecting blocks at both ends of the flexible rod are respectively located at the first connecting hole and the second connecting hole. The first connecting hole and the second connecting hole are in the bottom plate, and the connecting block is interference fit with the first connecting hole and the second connecting hole; a shaking motor is arranged at the middle of the top of the bottom plate, a connecting plate is arranged at the top of the output shaft of the shaking motor, a transverse plate 1 is arranged on one side of the connecting plate, a circular hole is arranged at one end of the transverse plate 1, a bolt is arranged in the circular hole, and the threaded end of the bolt is threadedly connected with the connecting plate, a supporting plate is arranged on the top of the other end of the transverse plate 1, a cylinder is arranged at the bottom end of the workpiece detection box, a blind hole is arranged inside the cylinder, a round rod is arranged at the top of the supporting plate, and the top of the round rod extends to the top of the blind hole;

[0010] Furthermore, in order to place each workpiece in its own partition, make subsequent imaging detection more convenient and accurate, and allow residual water on the workpiece surface to be smoothly shaken off, a number of horizontal bars and vertical bars are arranged inside the workpiece detection box, and a number of partitions are formed between the horizontal bars and the vertical bars, a pad is arranged at the bottom of the partition, and a water storage bottle is connected to the side wall at one end of the workpiece detection box.

[0011] Furthermore, in order to be able to flip the cavity and lift the cavity, the cavity can be automatically moved to the top of the workpiece detection box after the workpiece is shaken evenly in the workpiece detection box, and the residual water on the surface of the workpiece is blown dry by the airflow, and the workpiece automatically returns to its original position after being blown dry. The automation degree is high, and the residual water removal mechanism includes two L-shaped bases arranged on one side of the bottom plate, a transverse plate 2 is arranged between the top ends of the two L-shaped bases, a lifting cylinder is arranged at the middle part of the top end of the transverse plate 2, a lifting plate is arranged at the top end of the output shaft of the lifting cylinder, and the bottoms of both ends of the lifting plate are connected A guide rod and both ends of the second transverse plate are provided with linear bearings corresponding to the guide rod, and the bottom end of the guide rod passes through the linear bearing and extends to the bottom of the linear bearing; a motor mounting frame is provided at the top of the lifting plate, a flip motor is connected to the side wall of the motor mounting frame, the output shaft of the flip motor is connected to the flip rod, and a connecting frame is provided at one end of the flip rod close to the workpiece shaking and placing mechanism; the residual water removing mechanism also includes a cavity arranged on the side wall of the connecting frame and located at the top of the workpiece detection box, a plurality of air pipe joints are provided at the top of the cavity, and a plurality of air holes are provided at the bottom of the cavity.

[0012] Furthermore, in order to perform automatic imaging detection on the workpiece and complete the detection of overlapping workpieces in the workpiece detection box, and cooperate with the workpiece shaking and placing mechanism so that the workpiece can be shaken evenly in the workpiece detection box, so that it will not be blocked during the subsequent imaging detection of the workpiece surface, thereby improving the detection efficiency and accuracy, the CCD camera is connected to the recognition module; the CCD camera is used to obtain the workpiece position image located in the workpiece detection box; the recognition module is used to identify the position of each workpiece in the workpiece position image and detect the surface of each workpiece.

[0013] Furthermore, identifying the position of each workpiece in the workpiece position image includes the following steps:

[0014] According to the number of partitions of the workpiece detection box, the workpiece position image is divided into an equal number of image partitions according to the positions of the regions;

[0015] Initializing a contour curve in each image partition, and making the contour curve located outside the workpiece in the image partition and not exceeding the range of the partition of the workpiece detection box;

[0016] Calculating a contour curve energy function, wherein the contour curve energy function includes internal energy and external energy; wherein the internal energy is the curvature and tension of the contour curve, and the external energy is the matching degree between the contour curve and the edge of the image partition;

[0017] According to the gradient direction of the energy function of the contour curve, the position and shape of the contour curve are adjusted so that the contour curve gradually approaches the edge of the target;

[0018] Keep the contour curve smooth and compact, and make the energy function of the contour curve reach the minimum value, that is, the contour curve reaches a balanced state;

[0019] A plurality of final contour curves are obtained, and it is determined whether the plurality of final contour curves are consistent with the pre-stored workpiece contour. If at least one final contour curve is inconsistent, the workpiece is continuously shaken by the workpiece shaking and placing mechanism.

[0020] Further, after identifying the position of each workpiece in the workpiece position image, the following steps are included:

[0021] Workpiece center determination: Based on the distance function, the minimum distance value from each point to the edge in the final contour curve is calculated, and the center coordinates of the workpiece are obtained based on the local maximum point of the distance function.

[0022] Determine the side length of the workpiece: calculate the distance from all local maximum points to the edge and take the average value to obtain the side length of the workpiece;

[0023] Determine whether the type of workpiece is correct based on the center coordinates and side length of the workpiece.

[0024] According to another aspect of the present invention, there is provided an application of a high-precision imaging detector in environmental detection.

[0025] The beneficial effects of the present invention are:

[0026] (1) The present invention can detect a larger number of workpieces at one time, and does not need to clean the workpiece surface separately, so batch detection can be carried out, greatly improving the detection speed and efficiency. At the same time, the CCD camera can improve the accuracy of imaging detection.

[0027] (2) By setting up a workpiece shaking and placing mechanism, several workpieces can be automatically shaken evenly by shaking, avoiding the phenomenon of overlapping of several workpieces, and thus the imaging detection of multiple workpieces can be completed efficiently and automatically; through the design of horizontal bars, vertical bars and pads, each workpiece is placed in its own partition, making subsequent imaging detection more convenient and accurate, and the residual water on the surface of the workpiece can be smoothly shaken off.

[0028] (3) By setting up a residual water removal mechanism, the cavity can be flipped and lifted, so that after the workpiece is shaken evenly in the workpiece detection box, the cavity can be automatically moved to the top of the workpiece detection box, and the residual water on the surface of the workpiece can be blown dry by air flow. At the same time, the workpiece automatically returns to its original position after being blown dry, with a high degree of automation.

[0029] (4) The present invention performs automatic imaging detection on the workpiece and completes the detection of overlapping workpieces in the workpiece detection box, and is used in conjunction with the workpiece shaking and placing mechanism so that the workpiece can be shaken evenly in the workpiece detection box, and will not be blocked during the subsequent imaging detection of the workpiece surface, thereby improving the detection efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 is a structural schematic diagram of a high-precision imaging detector according to an embodiment of the present invention;

[0032] Figure 2 yes Figure 1 A partial enlarged view of the middle A;

[0033] Figure 3 It is a schematic diagram of the connection between a workpiece shaking and placing mechanism and a residual water removing mechanism in a high-precision imaging detector according to an embodiment of the present invention;

[0034] Figure 4 is a structural schematic diagram of a residual water removal mechanism in a high-precision imaging detector according to an embodiment of the present invention;

[0035] Figure 5 It is a cross-sectional view of a workpiece shaking and placing mechanism in a high-precision imaging detector according to an embodiment of the present invention;

[0036] Figure 6 is a schematic structural diagram of the top of a bottom plate in a high-precision imaging detector according to an embodiment of the present invention;

[0037] Figure 7 The invention is a block diagram of the connection principle of a CCD camera and a recognition module in a high-precision imaging detector according to an embodiment of the invention.

[0038] In the figure:

[0039] 1. Rack; 2. Display; 3. Workpiece storage box; 4. Support frame; 5. CCD camera; 6. Bottom plate; 7. Workpiece shaking and placing mechanism; 701. First connecting hole; 702. Workpiece detection box; 703. Second connecting hole; 704. Flexible rod; 705. Connecting block; 706. Shaking motor; 707. Connecting plate; 708. Horizontal plate 1; 709. Round hole; 710. Bolt; 711. Support plate; 712. Cylinder; 713. Blind hole; 714 , round rod; 715, horizontal rod; 716, vertical rod; 717, pad block; 718, water storage bottle; 8, residual water removal mechanism; 801, L-shaped base; 802, horizontal plate 2; 803, lifting cylinder; 804, lifting plate; 805, guide rod; 806, linear bearing; 807, motor mounting bracket; 808, flip motor; 809, flip rod; 810, connecting frame; 811, cavity; 812, air pipe joint; 813, air hole; 9, identification module. DETAILED DESCRIPTION

[0040] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0041] According to an embodiment of the present invention, a high-precision imaging detector and its application in environmental detection are provided.

[0042] The present invention is further described with reference to the accompanying drawings and specific embodiments. Figure 1-7 As shown, according to an embodiment of the present invention, a high-precision imaging detector is provided, including a frame 1, a display 2 is arranged in the middle of the top of the frame 1, a workpiece storage box 3 is arranged on one side of the display 2, a support frame 4 is arranged on the other side of the display 2, and a CCD camera 5 is arranged on the top of the support frame 4; a bottom plate 6 is arranged below the CCD camera 5 and at the top of the frame 1, a workpiece shaking and placing mechanism 7 is arranged on the top of the bottom plate 6, and a residual water cleaning mechanism 8 is arranged on one side of the workpiece shaking and placing mechanism 7.

[0043] With the aid of the above scheme, the present invention can detect a larger number of workpieces at one time, and does not need to clean the surfaces of the workpieces individually, and can perform batch detection, thereby greatly improving the detection speed and efficiency.

[0044] In one embodiment, for the above-mentioned workpiece shaking and placing mechanism 7, the workpiece shaking and placing mechanism 7 includes a plurality of first connecting holes 701 arranged at the top of the bottom plate 6, a workpiece detection box 702 is arranged above the bottom plate 6, and a plurality of second connecting holes 703 corresponding to the first connecting holes 701 are arranged at the bottom of the workpiece detection box 702; a flexible rod 704 is arranged between the first connecting hole 701 and the second connecting hole 703, and connecting blocks 705 are arranged at both ends of the flexible rod 704, and the two ends of the flexible rod 704 are connected to each other. The two connecting blocks 705 at the ends are respectively located in the first connecting hole 701 and the second connecting hole 703, and the connecting blocks 705 are interference fit with the first connecting hole 701 and the second connecting hole 703; a shaking motor 706 is arranged in the middle of the top of the bottom plate 6, and a connecting plate 707 is arranged at the top of the output shaft of the shaking motor 706, and a transverse plate 708 is arranged on one side of the connecting plate 707, and a circular hole 709 is arranged at one end of the transverse plate 708, and a bolt 710 is arranged in the circular hole 709, and the screw of the bolt 710 is tightened. The threaded end is threadedly connected to the connecting plate 707, a support plate 711 is arranged on the top of the other end of the transverse plate 708, a cylinder 712 is arranged at the bottom end of the workpiece detection box 702, a blind hole 713 is arranged inside the cylinder 712, a round rod 714 is arranged at the top end of the support plate 711, and the top end of the round rod 714 extends to the top end of the blind hole 713; a plurality of horizontal rods 715 and vertical rods 716 are arranged inside the workpiece detection box 702, and a plurality of partitions are formed between the horizontal rods 715 and the vertical rods 716, and the bottom of the partitions A raising block 717 is provided, and a water storage bottle 718 is connected to the side wall of one end of the workpiece detection box 702, so that a plurality of workpieces can be automatically shaken evenly by shaking to avoid overlapping of a plurality of workpieces, thereby efficiently and automatically completing the imaging detection of a plurality of workpieces; through the design of the horizontal bar 715, the vertical bar 716 and the raising block 717, each workpiece is placed in its own partition, making subsequent imaging detection more convenient and accurate, and allowing the residual water on the surface of the workpiece to be smoothly shaken off.

[0045] The working principle of the workpiece shaking and placing mechanism 7 is as follows: start the shaking motor 706, which drives the connecting plate 707 and the horizontal plate 1 708 to rotate, and drives the workpiece detection box 702 to shake through the connection of the cylinder 712 and the round rod 714, so that the workpiece shakes in the partition. Through the design of the horizontal rod 715, the vertical rod 716 and the pad block 717, each workpiece can be placed in its own partition, and the residual water on the surface of the workpiece is thrown off during the shaking process. At the same time, loosen the bolt 710, so that the horizontal plate 1 708 can adjust the angle upward or downward, so that the workpiece detection box 702 can tilt to one end, so that the water can flow into the water storage bottle 718.

[0046] In one embodiment, for the above-mentioned residual water removal mechanism 8, the residual water removal mechanism 8 includes two L-shaped bases 801 arranged on one side of the bottom plate 6, a transverse plate 802 is arranged between the top ends of the two L-shaped bases 801, a lifting cylinder 803 is arranged in the middle of the top end of the transverse plate 802, and a lifting plate 804 is arranged at the top end of the output shaft of the lifting cylinder 803. The bottom ends of the lifting plates 804 are connected with guide rods 805, and the two ends of the transverse plate 802 are provided with linear bearings 806 corresponding to the guide rods 805, and the bottom ends of the guide rods 805 pass through the linear bearings 806 and extend to the bottom of the linear bearings 806; a motor mounting frame 807 is arranged at the top end of the lifting plate 804, and a flip motor 808 is connected to the side wall of the motor mounting frame 807, and the output shaft of the flip motor 808 is connected to the flip rod 809. A connecting frame 810 is provided at one end of the rotating rod 809 close to the workpiece shaking and placing mechanism 7, and a photoelectric sensor can be provided on one side of the flipping rod 809. When the flipping rod 809 reaches a preset position, the flipping motor 808 can be stopped by communicating with the control panel; the residual water removing mechanism 8 also includes a cavity 811 arranged on the side wall of the connecting frame 810 and located at the top of the workpiece detection box 702, and a plurality of air pipe joints 812 are arranged at the top of the cavity 811, and a plurality of air holes 813 are arranged at the bottom of the cavity 811, so that the cavity 811 and the lifting cavity 811 can be flipped, and then the cavity 811 can be automatically moved to the top of the workpiece detection box 702 after the workpiece is shaken in the workpiece detection box 702, and the residual water on the surface of the workpiece is blown dry by the airflow, and the workpiece automatically returns to its original position after being blown dry, and the degree of automation is high.

[0047] The working principle of the residual water removal mechanism 8 is as follows: the flip motor 808 drives the flip rod 809 to flip, and flips the cavity 811 connected to the flip rod 809 to the top of the workpiece detection box 702. The lifting cylinder 803 drives the lifting plate 804 to lift and lower, and the cooperation of the guide rod 805 and the linear bearing 806 ensures the stability of the lifting process. The top of the cavity 811 is connected to a plurality of air pipe joints 812, and the bottom is provided with a plurality of air holes 813. When the cavity 811 is located above the workpiece detection box 702, compressed gas is introduced through the air pipe joints 812, and the gas is sprayed toward the workpiece through the air holes 813 to blow dry the residual water on the surface of the workpiece. After the workpiece is dried, the cavity 811 is driven by the flip motor 808 to return to its original position, and then the CCD camera 5 performs imaging detection on the workpiece, and the detection result is displayed through the display 2.

[0048] In one embodiment, the CCD camera 5 is connected to the recognition module 9; the CCD camera 5 is used to obtain the workpiece position image located in the workpiece detection box 702; the recognition module 9 is used to identify the position of each workpiece in the workpiece position image and detect the surface of each workpiece, thereby automatically imaging the workpiece and completing the detection of overlapping workpieces in the workpiece detection box 702, and cooperating with the workpiece shaking and placing mechanism 7, so that the workpiece can be shaken in the workpiece detection box 702, and will not be blocked during the subsequent imaging detection of the workpiece surface, thereby improving the detection efficiency and accuracy.

[0049] In a further embodiment, identifying the position of each workpiece in the workpiece position image comprises the following steps:

[0050] According to the number of partitions of the workpiece detection box 702, the workpiece position image is divided into an equal number of image partitions according to the positions of the regions; the specific size and number of partitions of the workpiece detection box 702 need to be obtained to reasonably divide the image partitions.

[0051] An initialization contour curve is located in each image partition, and the contour curve is located outside the workpiece in the image partition; at the same time, the type and shape of the workpiece can be obtained, which is conducive to selecting a suitable initialization contour curve and improving recognition efficiency.

[0052] Calculate the contour curve energy function, and the contour curve energy function includes internal energy and external energy; wherein the internal energy is the curvature and tension of the contour curve, and the external energy is the matching degree between the contour curve and the edge of the image partition; wherein the internal energy mainly measures the smoothness of the contour curve, and can be calculated by the sum of the distances from the points on the contour curve to the fitting curve. The fitting curve selects a Bezier curve or a cubic spline curve, fits the points on the contour curve by the least squares method, and then calculates the distance from each point to the curve. The smaller the value of the internal energy, the smoother the contour curve. The external energy mainly measures the matching degree between the contour curve and the edge of the image partition, and is calculated by the sum of the distances from the points on the contour curve to the edge of the image partition. The smaller the value of the external energy, the higher the matching degree between the contour curve and the edge of the image partition.

[0053] According to the gradient direction of the contour curve energy function, the position and shape of the contour curve are adjusted to make the contour curve gradually approach the target edge; at the same time, the changing speed of the contour curve should also be controlled to avoid the contour curve changing too drastically and thus skipping the target edge.

[0054] Keep the contour curve smooth and compact, and make the energy function of the contour curve reach the minimum value;

[0055] A plurality of final contour curves are obtained, and it is determined whether the plurality of final contour curves are consistent with the pre-stored workpiece contour. If at least one final contour curve is inconsistent, the workpiece is continuously shaken by the workpiece shaking and placing mechanism 7 .

[0056] In a further embodiment, after identifying the position of each workpiece in the workpiece position image, the following steps are included:

[0057] Workpiece center determination: Based on the distance function, the minimum distance value from each point to the edge in the final contour curve is calculated, and the center coordinates of the workpiece are obtained based on the local maximum point of the distance function.

[0058] Determine the side length of the workpiece: calculate the distance from all local maximum points to the edge and take the average value to obtain the side length of the workpiece;

[0059] Determine whether the type of workpiece is correct based on the center coordinates and side length of the workpiece.

[0060] According to another embodiment of the present invention, there is provided an application of a high-precision imaging detector in environmental detection.

[0061] In order to facilitate understanding of the above technical solutions of the present invention, the working principle or operation mode of the present invention in the actual process is described in detail below.

[0062] In actual application, the cleaned workpieces are sent to the workpiece detection box 702 in advance, and are shaken by the workpiece shaking and placing mechanism 7 so that the workpieces are evenly distributed in the workpiece detection box 702 to avoid overlapping of the workpieces. The residual water removal mechanism 8 is responsible for removing the residual water on the surface of the workpiece.

[0063] In summary, the present invention can detect more workpieces at one time, and does not need to clean the workpiece surface separately, so batch detection can be performed, which greatly improves the detection speed and efficiency. By setting the workpiece shaking and placing mechanism 7, it is possible to automatically shake a number of workpieces by shaking, avoiding the phenomenon of overlapping of a number of workpieces, and thus the imaging detection of multiple workpieces can be completed efficiently and automatically; through the design of the cross bar 715, the vertical bar 716 and the pad block 717, each workpiece is placed in its own partition, making the subsequent imaging detection more convenient and accurate, and the residual water on the surface of the workpiece can be smoothly thrown off. By setting the residual water removal mechanism 8, the cavity 811 and the lifting cavity 811 can be turned over, and then the cavity 811 can be automatically moved to the top of the workpiece detection box 702 after the workpiece is shaken in the workpiece detection box 702, and the residual water on the surface of the workpiece is blown dry by the airflow, and the workpiece automatically returns to the original position after being blown dry, and the degree of automation is high. The present invention performs automatic imaging detection on the workpiece, completes the detection of overlapping workpieces in the workpiece detection box 702, and is used in conjunction with the workpiece shaking and placing mechanism 7, so that the workpiece can be shaken evenly in the workpiece detection box 702, and will not be blocked during the subsequent imaging detection of the workpiece surface, thereby improving the detection efficiency and accuracy.

[0064] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-precision imaging detector, comprising a frame (1), characterized in that: A display (2) is arranged at the middle of the top of the frame (1), a workpiece storage box (3) is arranged on one side of the display (2), a support frame (4) is arranged on the other side of the display (2), and a CCD camera (5) is arranged on the top of the support frame (4); A bottom plate (6) is arranged below the CCD camera (5) and at the top of the frame (1); a workpiece shaking and placing mechanism (7) is arranged at the top of the bottom plate (6); a residual water removal mechanism (8) is arranged on one side of the workpiece shaking and placing mechanism (7); workpieces can be surface treated in batches by means of the placement mechanism (7) and the residual water removal mechanism (8); the workpiece shaking and placing mechanism (7) comprises a plurality of first connection holes (701) arranged at the top of the bottom plate (6); a workpiece detection box (702) is arranged above the bottom plate (6); a plurality of second connection holes (703) corresponding to the first connection holes (701) are arranged at the bottom of the workpiece detection box (702); A flexible rod (704) is provided between the first connecting hole (701) and the second connecting hole (703), and connecting blocks (705) are provided at both ends of the flexible rod (704), and the two connecting blocks (705) at both ends of the flexible rod (704) are respectively located in the first connecting hole (701) and the second connecting hole (703), and the connecting blocks (705) are interference fit with the first connecting hole (701) and the second connecting hole (703); A shaking motor (706) is arranged at the middle of the top of the bottom plate (6), a connecting plate (707) is arranged at the top of the output shaft of the shaking motor (706), a transverse plate (708) is arranged on one side of the connecting plate (707), a circular hole (709) is arranged at one end of the transverse plate (708), a bolt (710) is arranged in the circular hole (709), and the threaded end of the bolt (710) is threadedly connected to the connecting plate (707), a supporting plate (711) is arranged at the top of the other end of the transverse plate (708), a cylinder (712) is arranged at the bottom end of the workpiece detection box (702), and a blind hole (713) is arranged inside the cylinder (712) The top of the support plate (711) is provided with a round rod (714), and the top of the round rod (714) extends to the top of the blind hole (713). The residual water removal mechanism (8) comprises two L-shaped bases (801) arranged on one side of the bottom plate (6). A transverse plate 2 (802) is arranged between the tops of the two L-shaped bases (801). A lifting cylinder (803) is arranged at the middle of the top of the transverse plate 2 (802). A lifting plate (804) is arranged at the top of the output shaft of the lifting cylinder (803). The bottoms of both ends of the lifting plate (804) are connected to guide rods (805). Both ends of the transverse plate 2 (802) are provided with guide rods that are connected to the guide rods. (805) and a corresponding linear bearing (806), and the bottom end of the guide rod (805) passes through the linear bearing (806) and extends to the bottom of the linear bearing (806), the top of the lifting plate (804) is provided with a motor mounting frame (807), the side wall of the motor mounting frame (807) is connected with a flip motor (808), the output shaft of the flip motor (808) is connected with a flip rod (809), and the flip rod (809) is provided with a connecting frame (810) at one end close to the workpiece shaking and placing mechanism (7), and a photoelectric sensor can be provided on one side of the flip rod (809). When the flip rod (809) reaches a preset position, it can be turned on by The control panel is communicated with so that the flipping motor (808) stops; the residual water removing mechanism (8) further comprises a cavity (811) arranged on the side wall of the connecting frame (810) and located at the top of the workpiece detection box (702); the top of the cavity (811) is provided with a plurality of air pipe joints (812); the bottom of the cavity (811) is provided with a plurality of air holes (813); the cavity (811) can be flipped and raised and lowered, so that after the workpiece is evenly shaken in the workpiece detection box (702), the cavity (811) can be automatically moved to the top of the workpiece detection box (702), and the residual water on the surface of the workpiece can be blown dry by airflow.

2. A high-precision imaging detector according to claim 1, characterized in that: A plurality of horizontal bars (715) and vertical bars (716) are arranged inside the workpiece detection box (702), and a plurality of partitions are formed between the horizontal bars (715) and the vertical bars (716). A padding block (717) is arranged at the bottom of each partition. A water storage bottle (718) is connected to a side wall at one end of the workpiece detection box (702).

3. A high-precision imaging detector according to claim 2, characterized in that: The CCD camera (5) is connected to the identification module (9); The CCD camera (5) is used to obtain a position image of a workpiece located in the workpiece detection box (702); The recognition module (9) is used to recognize the position of each workpiece in the workpiece position image and detect the surface of each workpiece.

4. A high-precision imaging detector according to claim 3, characterized in that: Identifying the position of each workpiece in the workpiece position image comprises the following steps: According to the number of partitions of the workpiece detection box (702), dividing the workpiece position image into an equal number of image partitions according to the positions of the regions; Initializing a contour curve in each image partition and making the contour curve located outside the workpiece in the image partition; Calculating a contour curve energy function, wherein the contour curve energy function includes internal energy and external energy; wherein the internal energy is the curvature and tension of the contour curve, and the external energy is the matching degree between the contour curve and the edge of the image partition; According to the gradient direction of the energy function of the contour curve, the position and shape of the contour curve are adjusted so that the contour curve gradually approaches the target edge; Keeping the contour curve smooth and compact, and making the energy function of the contour curve reach a minimum value; A plurality of final contour curves are obtained, and it is determined whether the plurality of final contour curves are consistent with the pre-stored workpiece contour. If at least one final contour curve is inconsistent, the workpiece is continuously shaken by the workpiece shaking and placing mechanism (7).

5. A high-precision imaging detector according to claim 4, characterized in that: After identifying the position of each workpiece in the workpiece position image, the following steps are included: Determine the center of the workpiece: calculate the minimum distance value from each point in the final contour curve to the edge based on the distance function, and obtain the center coordinates of the workpiece according to the local maximum point of the distance function; Determine the side length of the workpiece: calculate the distance from all local maximum points to the edge and take the average value to obtain the side length of the workpiece; Determine whether the type of workpiece is correct based on the center coordinates and side length of the workpiece.

6. Application of the high-precision imaging detector according to any one of claims 1 to 5 in environmental detection.

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