Handheld device for detecting surface defects of raised fabric

Abstract

The utility model discloses a handheld device for detecting surface defects of a raised fabric, which comprises a sensing head shell, a laser is connected in the sensing head shell, a cylindrical mirror is connected on the sensing head shell opposite to the laser, an image acquisition device is further connected on the sensing head shell on the same side of the cylindrical mirror, and the image acquisition device and the laser are connected with a control system. Laser is emitted through the laser device, the laser is diffused into linear laser through the cylindrical mirror, the linear laser is projected on the surface of the raising fabric to form diffuse reflection, after diffuse reflection light is imaged on the image acquisition device and processed by the processing controller, whether defects exist on the surface of the raising fabric or not is recognized, and a detection result is displayed on the liquid crystal display screen. And images and data in the detection process are stored in the SD card. The overall structure is simple and easy to machine.

Description

Technical Field

[0001] The utility model belongs to the technical field of visual inspection equipment, and in particular relates to a handheld device for detecting surface defects of pile fabrics. Background Art

[0002] Pile fabrics are covered with a layer of fluff, offering a soft feel, excellent elasticity, and warmth retention. The fluff is composed of countless tiny fibers, which are unevenly distributed in space, have varying orientations, and complex shapes. Currently, the primary method for testing the quality of pile fabrics relies on subjective human assessment, conducted according to textile identification standards. This is labor-intensive and inefficient. Therefore, a machine vision-based surface quality testing method for pile fabrics has been proposed, which uses imaging to obtain image information. However, the commonly used equipment is large and unsuitable for use in production sites, warehouses, and other workspaces. Utility Model Content

[0003] The purpose of the utility model is to provide a handheld device for detecting surface defects of pile fabrics, which solves the problem that existing detection equipment is large in size and cannot perform surface defects detection of pile fabrics flexibly and in real time.

[0004] The technical solution adopted by the utility model is a handheld device for detecting surface defects of pile fabrics, including a sensor head shell, a laser connected inside the sensor head shell, a cylindrical mirror connected to the sensor head shell facing the laser, an image acquisition device connected to the same surface of the sensor head shell as the cylindrical mirror, and the image acquisition device and the laser connected to a control system.

[0005] The utility model is also characterized in that:

[0006] The control system comprises a processing controller, which is electrically connected to the control panel and is respectively electrically connected to the image acquisition device and the laser.

[0007] The control panel includes a start / pause button, a zoom-in / increase-shutter button, a zoom-out / reduce-shutter button, and a mode switch button.

[0008] The image acquisition device is connected to the SD card through the control system.

[0009] The image acquisition device is connected to the display screen through the control system.

[0010] The sensor head housing is also connected to a handle, and the control system is connected to the handle.

[0011] An LED light is also connected between the cylindrical mirror and the image acquisition device on the sensor head housing, and the LED light is connected to an LED light switch button and a processing controller in sequence.

[0012] The beneficial effects of the utility model are:

[0013] This handheld device for detecting surface defects in pile fabrics uses a laser to emit laser light, which is diffused into a line by a cylindrical mirror and then projected onto the surface of the pile fabric, creating diffuse reflection. The diffusely reflected light forms an image on an image acquisition device. After processing by a controller, the device identifies defects on the pile fabric surface. The detection results are displayed on a liquid crystal display, and images and data from the detection process are stored in an SD card. The overall structure is simple and easy to manufacture. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of a handheld device for detecting surface defects of pile fabrics according to the present invention;

[0015] Figure 2 This is a connection diagram of the control system in this utility model;

[0016] Figure 3 It is a structural diagram of the control panel in the utility model.

[0017] In the figure: 1. Processing controller; 2. Cylindrical mirror; 3. LED light; 4. Image acquisition device; 5. LED light on / off button; 6. Handle; 7. Sensor head housing; 8. Control panel; 9. Laser; 10. Start / Pause button, 11. Zoom in / increase shutter button, 12. Zoom out / reduce shutter button, 13. Mode switch button, 14. Display screen, 15. SD card. DETAILED DESCRIPTION

[0018] The present invention will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0019] Example 1

[0020] The utility model is a handheld device for detecting surface defects of pile fabrics, such as Figure 1 As shown, the sensor head housing 7 includes a sensor head housing 7, a laser 9 connected thereto, a cylindrical mirror 2 connected to the sensor head housing 7 facing the laser 9, and an image acquisition device 4 connected to the same surface of the sensor head housing 7 as the cylindrical mirror 2. The image acquisition device 4 and the laser 9 are connected to a control system. Laser light is emitted by the laser 9 and scanned across the surface of the pile fabric. The laser light is diffused into a line by the cylindrical mirror 2 and then projected onto the surface of the pile fabric, forming a diffuse reflection. The diffusely reflected light forms an image on the image acquisition device 4, which is then processed by the control system to identify defects on the pile fabric surface. Data processing is then performed to identify surface defects in the pile fabric.

[0021] The control system used in the present invention can process the images in the image acquisition device 4 and identify defects in the images.

[0022] Example 2

[0023] On the basis of Example 1, Figure 2 As shown, the control system in this embodiment includes a processing controller 1, which is connected to a control panel 8. The processing controller 1 is also connected to an image acquisition device 4 and a laser 9. The control panel 8 controls the processing controller 1 to activate the image acquisition device 4 and the laser 9 to facilitate image acquisition of the velvet fabric surface.

[0024] Among them, Figure 3 As shown, the control panel 8 includes a start / pause button 10 , a zoom-in angle / increase shutter button 11 , a zoom-out angle / reduced shutter button 12 , and a mode switching button 13 .

[0025] The start / pause button 10 is used to control the image acquisition device 4 and the laser 9 to start or pause. Single click to start, double click to pause.

[0026] The zoom-in angle / increase shutter button 11 can enlarge the zoom-in angle of the image acquisition device 4 .

[0027] The zoom-out angle / zoom-out shutter button 12 is capable of reducing the zoom-in angle of view of the image acquisition device 4 .

[0028] The mode switch button 13 can switch the function of enlarging the viewing angle to the function of increasing the shutter speed, and can switch the function of reducing the viewing angle to the function of reducing the shutter speed.

[0029] Example 3

[0030] On the basis of Example 1, in the handheld device for detecting surface defects of pile fabrics of the present invention, the image acquisition device 4 is connected to the SD card 15 through the control system, and the processing controller 1 stores the defect recognition result in the SD card 15 .

[0031] The image acquisition device 4 is connected to the display screen 14 via the processing controller 1 in the control system, and the defect recognition result is displayed on the display screen 14.

[0032] The sensor head housing 7 is also connected to a handle 6, and the control system is connected to the handle 6. The handle 6 is used for hand-holding to facilitate defect detection.

[0033] An LED lamp 3 is also connected to the sensor head housing 7 between the cylindrical mirror 2 and the image acquisition device. The LED lamp 3 is connected to the LED lamp switch button 5 and the processing controller 1 in sequence. The LED lamp 3 can enhance the light intensity at the position to be detected during image acquisition, making the target features in the image more obvious.

[0034] When performing surface defect detection on pile fabrics, the handheld device for detecting surface defects on pile fabrics enters operating mode by clicking the start / pause button 10. The handheld device grips the handle 6 to scan the surface of the pile fabric. The laser 9 is turned on to emit laser light, which forms diffuse reflection on the surface of the pile fabric. The image acquisition device 4 receives the reflected laser light and converts it into an electrical signal. The processing controller 1 converts the electrical signal into a digital signal and analyzes it, identifying defects on the surface of the pile fabric. The results are stored in the SD card 15 and displayed on the display screen 14, enabling real-time detection. The entire handheld device is lightweight, compact, easy to carry, and more flexible. It has a simple structure, is cost-effective, and is easy to manufacture and install.

Claims

1. A handheld device for detecting surface defects of pile fabrics, characterized in that: The sensor head housing (7) comprises a sensor head housing (7), a laser (9) is connected inside the sensor head housing (7), a cylindrical mirror (2) is connected to the sensor head housing (7) facing the laser (9), an image acquisition device (4) is also connected to the same surface of the sensor head housing (7) as the cylindrical mirror (2), and the image acquisition device (4) and the laser (9) are connected to a control system; The control system comprises a processing controller (1), wherein the processing controller (1) is electrically connected to a control panel (8), and the processing controller (1) is electrically connected to an image acquisition device (4) and a laser (9). The control panel (8) includes a start / pause button (10), a zoom-in angle / increase shutter button (11), a zoom-out angle / zoom-out shutter button (12), and a mode switching button (13).

2. The handheld device for detecting surface defects of pile fabrics according to claim 1, characterized in that: The image acquisition device (4) is connected to the SD card (15) via a control system.

3. The handheld device for detecting surface defects of pile fabrics according to claim 1, characterized in that: The image acquisition device (4) is connected to the display screen (14) via a control system.

4. The handheld device for detecting surface defects of pile fabrics according to claim 1, characterized in that: The sensor head housing (7) is also connected to a handle (6), and the control system is connected to the handle (6).

5. The handheld device for detecting surface defects of pile fabrics according to claim 1, characterized in that: An LED light (3) is also connected to the sensor head housing (7) between the cylindrical mirror (2) and the image acquisition device, and the LED light (3) is sequentially connected to an LED light switch button (5) and a processing controller (1).

Images