Raw silk image area array acquisition device based on machine vision

Abstract

The utility model relates to the technical field of raw silk image acquisition, in particular to a raw silk image area array acquisition device based on machine vision, which comprises a raw silk blackboard assembly, a first light source assembly, an imaging assembly, a second light source assembly and an area array imaging assembly, stepping motors are fixed to the two ends of the blackboard support, a blackboard is rotationally connected between the two stepping motors, raw silk to be detected is wound on the blackboard, an infrared sensor and a first light source assembly which trigger the light source assembly to be started are further arranged at the two ends of the blackboard support, and the imaging assembly is located right in front of the raw silk blackboard assembly. The whole image acquisition process is automatic, a stepping motor is adopted to automatically control the blackboard to turn over, meanwhile, a servo motor controls an area-array camera and an imaging assembly to move on a guide rail, manual operation is not needed, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of raw silk image acquisition, in particular to a raw silk image surface array acquisition device based on machine vision. Background Art

[0002] As a major producer and exporter of raw silk, the inspection of raw silk quality is very important. When using the traditional blackboard inspection method to inspect raw silk quality, the inspection accuracy is low due to the subjective factors of the inspector, and the human eye is easily fatigued after long-term visual inspection, resulting in low efficiency.

[0003] Machine vision technology is widely used in the field of quality inspection, but it is difficult to obtain high-quality images of raw silk defects due to the different shapes and low contrast of tiny raw silk defects. Therefore, a raw silk image array acquisition device based on machine vision is designed by combining area array cameras with automatic control technology to build a high-quality raw silk image database, which is conducive to the subsequent inspection of raw silk quality based on machine vision technology. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The purpose of the utility model is to provide a raw silk image area array acquisition device based on machine vision to solve the problems raised in the above background technology.

[0006] (II) Technical solution

[0007] The utility model adopts the following technical solutions to solve the above technical problems: a raw silk image area array acquisition device based on machine vision, comprising a raw silk blackboard component, a first light source component, an imaging component, a second light source component, and an area array imaging component, wherein the raw silk blackboard component comprises a blackboard bracket, stepper motors are fixed at both ends of the blackboard bracket, a blackboard is rotatably connected between the two stepper motors, raw silk to be inspected is wound on the blackboard, and infrared sensors for triggering the start of the light source and the first light source component are also arranged at both ends of the blackboard bracket;

[0008] The imaging component is located directly in front of the raw silk blackboard component, and the imaging component includes an imaging bracket, on which two longitudinal motion guide rails are fixed, and a first servo motor is slidably connected to the two longitudinal motion guide rails, and a planar array imaging component is fixedly connected between the two first servo motors, and a second light source component is also fixed between the two longitudinal motion guide rails.

[0009] Preferably, the first light source assembly includes a light baffle, the light baffle is rotatably connected to the blackboard bracket, and a strip light source A is fixed to the outermost edge of the inner side of the light baffle.

[0010] Preferably, the area array imaging assembly includes a transverse motion guide rail, both ends of which are fixedly connected to two first servo motors, a second servo motor is slidably connected to the transverse motion guide rail, and an area array camera is fixed to the second servo motor.

[0011] Preferably, the second light source assembly includes two cross bars, the two cross bars are fixedly connected to the longitudinal motion guide rail, and a strip light source B is fixed on the inner side surface between the two cross bars.

[0012] Preferably, the stepping motor can control the flipping of the blackboard.

[0013] Preferably, the light baffle can adjust the light source direction of the strip light source A.

[0014] Preferably, the first servo motor can control the area array imaging assembly to move on the longitudinal motion guide rail.

[0015] Preferably, the second servo motor can drive the area array camera to move on the transverse motion guide rail.

[0016] Preferably, the infrared sensor controls the strip light source A and the strip light source B to start up through a trigger signal.

[0017] (III) Beneficial effects

[0018] In summary, the utility model has the following beneficial effects:

[0019] 1. This device automates the entire image acquisition process, using a stepper motor to automatically control the flipping of the blackboard, while a servo motor controls the area array camera and imaging components to move on the guide rail, without manual operation.

[0020] 2. This device combines the first light source component and the second light source component as a dual light source device, which can make the imaging quality of raw silk higher.

[0021] 3. This device collects raw silk images in a planar array manner, which is conducive to inspecting the quality of raw silk from a macro perspective through machine vision algorithms.

[0022] 4. The entire imaging device of the device is simple to operate and easy to adjust, and has a high efficiency in collecting raw silk images. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a structural schematic diagram of the utility model;

[0025] Figure 2 It is a schematic diagram of each structure of the utility model;

[0026] Figure 3 This is the work flow chart of the utility model.

[0027] In the figure: 1-blackboard, 2-raw silk to be inspected, 3-bar light source A, 4-infrared sensor, 5-stepping motor, 6-light baffle, 7-blackboard bracket, 8-bar light source B, 9-cross bar, 10-longitudinal motion guide rail, 11-imaging bracket, 12-first servo motor, 13-area array camera, 14-second servo motor, 15-lateral motion guide rail. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0030] Example:

[0031] The specific implementation method of the utility model is as follows: Figure 1 and Figure 2 As shown, the present invention uses a raw silk image array acquisition device based on machine vision, which includes: a raw silk blackboard component, a first light source component, an imaging component, a second light source component, and an array imaging component.

[0032] The raw silk blackboard assembly includes: a blackboard 1, raw silk 2 to be inspected, an infrared sensor 4, a stepper motor 5, and a blackboard bracket 7. The raw silk 2 to be inspected is densely wound on the blackboard 1 and is divided into ten pieces. The infrared sensor 4 and the stepper motor 5 are installed at both ends of the blackboard bracket 7. The stepper motor 5 can control the blackboard 1 to flip.

[0033] The first light source assembly includes: a strip light source A3 and a light blocking plate 6. The strip light source A3 is installed at the inner outermost edge of the light blocking plate 6. The direction of the light source can be adjusted by adjusting the angle of the light blocking plate 6.

[0034] The imaging assembly includes: a longitudinal motion rail 10, an imaging support 11, and a first servo motor 12. The longitudinal motion rail 10 is fixed inside the imaging support 11, and the first servo motor 12 is installed on the longitudinal motion rail 10 and connected to the area array imaging assembly. The first servo motor 12 can control the area array imaging assembly to move on the longitudinal motion rail 10.

[0035] The second light source assembly includes: a strip light source B8 and a crossbar 9. The strip light source B8 is fixed to the lower side of the upper crossbar 9 and the upper side of the lower crossbar 9.

[0036] The area array imaging assembly includes: an area array camera 13, a second servo motor 14, and a transverse motion guide rail 15. The area array camera 13 is fixed on the upper part of the second servo motor 14 and installed on the transverse motion guide rail 15. The second servo motor 14 can drive the area array camera 13 to move on the transverse motion guide rail 15.

[0037] The utility model discloses a raw silk image array acquisition device based on machine vision, and the specific working process is as follows: Figure 3 As shown, first, the blackboard 1 wrapped with raw silk is placed on the blackboard support 7, and the infrared sensors 4 at both ends of the blackboard support 7 trigger signals, and the strip light sources A3 and B8 are started; secondly, the area array camera 13 identifies the blackboard 1 to obtain the length L of the blackboard 1, and the second servo motor 14 is started to drive the two area array cameras 13 to move left and right to L / 3 and 2L / 3, and at the same time, the first servo motor 12 is started to drive the area array imaging component carrying the area array camera 13 to move up and down to the middle position; finally, the area array camera 13 starts to collect the raw silk image on the front of the blackboard 1; after the single-side collection is completed, the stepping motors 5 at both ends of the blackboard support 7 are started to drive the blackboard 1 to flip, and at the same time, the area array camera 13 starts to collect the raw silk image on the back of the blackboard 1; thereby realizing the automatic collection of the raw silk image by the area array camera 13 for the computer to identify and analyze. The collection process of this device is intelligent, and the raw silk image wrapped on the blackboard can be completely collected in an area array manner, completing the all-round image collection work.

[0038] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A raw silk image array acquisition device based on machine vision, characterized in that : comprising a raw silk blackboard component, a first light source component, an imaging component, a second light source component, and a planar array imaging component, wherein the raw silk blackboard component comprises a blackboard bracket (7), stepper motors (5) are fixed at both ends of the blackboard bracket (7), a blackboard (1) is rotatably connected between the two stepper motors (5), raw silk (2) to be inspected is wound around the blackboard (1), and infrared sensors (4) for triggering the start of the light source and the first light source component are also provided at both ends of the blackboard bracket (7); The imaging component is located directly in front of the raw silk blackboard component, and comprises an imaging bracket (11), two longitudinal motion guide rails (10) are fixed on the imaging bracket (11), a first servo motor (12) is slidably connected to the two longitudinal motion guide rails (10), a planar array imaging component is fixedly connected between the two first servo motors (12), and a second light source component is also fixed between the two longitudinal motion guide rails (10).

2. The raw silk image area array acquisition device based on machine vision according to claim 1, characterized in that: The first light source assembly comprises a light blocking plate (6), the light blocking plate (6) is rotatably connected to a blackboard support (7), and a strip light source A (3) is fixed to the outermost edge of the inner side of the light blocking plate (6).

3. The raw silk image area array acquisition device based on machine vision according to claim 1, characterized in that: The area array imaging component comprises a transverse motion guide rail (15), two ends of the transverse motion guide rail (15) are fixedly connected to two first servo motors (12), a second servo motor (14) is slidably connected to the transverse motion guide rail (15), and an area array camera (13) is fixed to the second servo motor (14).

4. The raw silk image area array acquisition device based on machine vision according to claim 1, characterized in that: The second light source assembly comprises two cross bars (9), the two cross bars (9) are fixedly connected to the longitudinal motion guide rail (10), and a strip light source B (8) is fixed on the inner side surface between the two cross bars (9).

5. The machine vision-based raw silk image area array acquisition device according to claim 1, characterized in that: The stepping motor (5) can control the flipping of the blackboard (1).

6. The machine vision-based raw silk image area array acquisition device according to claim 2, characterized in that: The light blocking plate (6) can adjust the light source direction of the strip light source A (3).

7. The machine vision-based raw silk image area array acquisition device according to claim 1, characterized in that: The first servo motor (12) can control the area array imaging component to move on the longitudinal motion guide rail (10).

8. The machine vision-based raw silk image area array acquisition device according to claim 3, characterized in that: The second servo motor (14) can drive the area array camera (13) to move on the transverse motion guide rail (15).

9. The machine vision-based raw silk image area array acquisition device according to claim 4, characterized in that: The infrared sensor (4) controls the strip light source A (3) and the strip light source B (8) to start up through a trigger signal.

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