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06

2023

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01

What are the components of industrial machine vision system?

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【概要描述】With the development of industrial automation, the application of industrial machine vision system will also be more and more extensive. In addition, the rapid development of digital image sensors, CMOS and CCD cameras, DSP, FPGA, ARM and other embedded technologies, image processing and pattern recognition technologies will also bring a huge boost to the development of machine vision inspection. Here is a brief introduction of the main components of industrial machine vision system: 1. Camera and optical components This category usually contains one or more cameras and lenses (optical components) for photographing the detected object. According to the application, the camera can be based on the following standards: black and white, composite color (Y/C), RGB color, non-standard black and white (variable scan), step scan or line scan. 2. Lights The light of industrial machine vision system is used to illuminate components, so as to capture better images from the camera. The light system can be in different shapes, sizes and brightness. The general light forms are high-frequency fluorescent lamps, LED, incandescent lamps and quartz halide optical fibers. 3. Component sensor It usually appears in the form of grating or sensor. When the sensor senses that the component is close, it will give a trigger signal. When the component is in the correct position, the sensor will tell the machine vision system to collect the image. 4. Image acquisition card Also known as video capture card, this part is usually a card inserted on the PC. The function of this capture card is to connect the camera with the PC. It obtains data (analog signal or digital signal) from the camera and then converts it into information that the PC can process. Industrial machine vision system can also provide signals to control camera parameters (such as trigger, exposure time, shutter speed, etc.). There are many types of image capture cards, Support different types of cameras and different computer buses.

随着工业自动化的发展,工业机器视觉系统应用面也将越来越广泛,加上数字图像传感器、CMOS和CCD摄像机、DSP、FPGA、ARM等嵌入式技术、图像处理和模式识别等技术的快速发展,也为机器视觉检测发展带来巨大的助推力,下面为大家简单介绍工业机器视觉系统的主要组成:

  1.摄像头和光学部件

  这一类通常含有一个或多个摄像头和镜头(光学部件),用于拍摄被检测的物体,根据应用,摄像头可以基于如下标准,黑白、复合 彩色(Y/C),RGB彩色,非标准黑白(可变扫描),步进扫描或线扫描。

  2.灯光

  工业机器视觉系统灯光用于照亮部件,以便从摄像头中拍摄到更好的图像,灯光系统可以在不同形状、尺寸和亮度,一般的灯光形式是高频荧光灯、LED、白炽灯和石英卤(quartz-halogen)光纤。

  3.部件传感器

  通常以光栅或传感器的形式出现,当这个传感器感知到部件靠近,它会给出一个触发信号,当部件处于正确位置时,这个传感器告诉机器视觉系统去With the development of industrial automation, the application of industrial machine vision system will also be more and more extensive. In addition, the rapid development of digital image sensors, CMOS and CCD cameras, DSP, FPGA, ARM and other embedded technologies, image processing and pattern recognition technologies will also bring a huge boost to the development of machine vision inspection. Here is a brief introduction of the main components of industrial machine vision system:
1. Camera and optical components
This category usually contains one or more cameras and lenses (optical components) for photographing the detected object. According to the application, the camera can be based on the following standards: black and white, composite color (Y/C), RGB color, non-standard black and white (variable scan), step scan or line scan.
2. Lights
The light of industrial machine vision system is used to illuminate components, so as to capture better images from the camera. The light system can be in different shapes, sizes and brightness. The general light forms are high-frequency fluorescent lamps, LED, incandescent lamps and quartz halide optical fibers.
3. Component sensor
It usually appears in the form of grating or sensor. When the sensor senses that the component is close, it will give a trigger signal. When the component is in the correct position, the sensor will tell the machine vision system to collect the image.
4. Image acquisition card
Also known as video capture card, this part is usually a card inserted on the PC. The function of this capture card is to connect the camera with the PC. It obtains data (analog signal or digital signal) from the camera and then converts it into information that the PC can process. Industrial machine vision system can also provide signals to control camera parameters (such as trigger, exposure time, shutter speed, etc.). There are many types of image capture cards, Support different types of cameras and different computer buses.采集图像。

  4.图像采集卡

  也称为视频抓取卡,这个部件通常是一张插在 PC上的卡,这张采集卡的作用将摄像头与 PC连接起来,它从摄像头中获得数据(模拟信号或数字信号),然后转换成PC 能处理的信息,工业机器视觉系统它同时可以提供控制摄像头参数(例如触发、曝光时间、快门速度等等)的信号,图像采集卡形式很多,支持不同类型的摄像头,不同的计算机总线。

 


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Comparison between optical fiber sensor and traditional sensor

At present, in the Chinese market, fiber Bragg grating (equipped with ASE broadband light source) and distributed sensor based on optical time-domain reflection are the most widely used optical fiber sensing technologies. This technology can basically meet the needs of the medium and low end general market and is well known by industry insiders. The single-frequency fiber laser with spectral linewidth as narrow as 2 kHz and the latest generation of optical sensing technology introduced now are completely different from the optical fiber sensing we now know. This new technical solution can fully meet the higher demand for ultra-long distance, ultra-high precision and ultra-high sensitivity in the high-end market, which cannot be completed by electric sensing and general optical fiber sensing. However, this technology is still in the stage of project approval and pre-research in China. Compared with traditional sensing technology, fiber-based sensors have the following major advantages: 1. Light weight, compact structure, easy to reuse in multiple ways; 2. Resistance to harsh environment, electromagnetic interference and chemical corrosion; 3. There is no need for electricity at the sensing point, and long-distance distributed sensing is possible; 4. Low cost mass production After optical fiber communication, optical fiber sensing has also ushered in an important development opportunity. It has extensive and huge application value in security, military, oil/gas, electricity and scientific research, especially in western developed countries. The optical principle of single-frequency fiber laser for optical sensing is optical frequency time-domain reflection.

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Structure principle and classification of optical fiber sensor

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琦威(香港)有限公司

Kiwell (Hongkong) Co., Ltd.

Add:  Workshop Unit No. A6, 8/F, Hoplite Industrial Centre, No. 3 & 5 Wang Tai Road, Kowloon Bay, Kowloon, Hongkong

Tel:852 3171 1488  

Fax:852 3111 6959

佛山市琦威电气技术有限公司

Kiwell (Foshan) Electric Technology Co., Ltd.

Add :  Floor 3,Block 5,No.23,Xinghua Road,

           Zhangcha Street,Foshan Clty,Guangdong Province

Tel :   0757-83276620    13827717320 

Fax :  0757-83992196

Mailbox: info@kiwell.cn

 

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