Realizing "Made in China 2025" and completing the transition from a manufacturing power to a manufacturing power, intelligent manufacturing is the main direction. In the intelligent manufacturing process, machine vision mainly uses computer to simulate human visual function, that is, extracts, processes and understands the image information of objective things, and finally uses it for actual detection, measurement and control. As smart manufacturing intensifies, the demand for machine vision in the market will gradually increase.
Machine vision can be said to be the soul window of industrial automation systems. From object/barcode identification, product inspection, appearance size measurement to robotic arm/transmission equipment positioning, machine vision technology can play a stage. In order to meet the demand for new applications, the design of industrial cameras has also taken on a new direction.
Machine vision industry chain
The application of machine vision in life and its wide range play an important role in the fields of transportation, hydrological observation, geological hazard warning and identification. On the macro level, the segmentation industry with faster development is face recognition and image recognition. These two branches are concentrated in the fields of finance, security and transportation. Most of the investors in these segments have their own technological advantages and will provide application solutions for various scenarios to make a profit.
China's machine vision development status
China's machine vision industry started relatively late, and the concentration is not very high. At the beginning, it mainly relied on foreign brands. In recent years, many dealers have started to develop their own products, but there is still a gap between them in terms of industry distribution, channel distribution and mature automation products. The relatively mature automation products of domestic machine vision and the low technical content, the market is far from saturated.
Machine vision companies can be roughly divided into layer developers, secondary developers and product agents. Domestic machine vision companies are mainly foreign machine vision product agents and system secondary developers. At present, there are more than 100 foreign brands entering China's machine vision market. There are more than 200 companies in charge of sales agents in China, and more than 50 professional system integrators. China's real professional machine vision bottom-level manufacturers are rare, local machine vision system manufacturers and machine vision system component manufacturers are missing.
The development trend of machine vision in China
Industry 4.0 is inseparable from intelligent manufacturing, and intelligent manufacturing is inseparable from machine vision. Machine vision is the necessary means to achieve industrial automation and intelligence, equivalent to the extension of human vision on the machine. Machine vision has the advantages of high automation, high efficiency, high precision and poor adaptability, which will play an important role in the realization of industrial automation in China.
Visual image technology needs to focus on building four core competencies:
First, intelligent identification. Massive information converges quickly, and key features are found in a large amount of information. Accuracy and reliability are key.
Second, smart measurement. Measurement is the foundation of industry and requires precision.
Third, intelligent detection. On the basis of measurement, comprehensive analysis and judgment of multiple information and multiple indicators, the key point is based on the intelligent judgment of complex logic.
Fourth, smart interconnection. The massive data of the image is collected in multiple nodes, and the data of personnel, equipment, production materials, environment, technology and so on are interconnected, and the innovative ability of deep learning, intelligent optimization, intelligent prediction, etc. is derived, which truly demonstrates the power of Industry 4.0.
Machine vision related products
A typical industrial machine vision system includes: light source, lens, camera (including CCD camera and COMS camera), image processing unit (or image capture card), image processing software, monitor, communication / input and output unit.
(1) Machine vision core components:
Smart cameras: black and white smart cameras, line scan smart cameras, color smart cameras, CMOS smart cameras, ID readers, etc.;
Board: black and white capture card, image compression / decompression board, color capture card, etc.;
Software package: image processing software, machine vision tool software;
Accessories: industrial camera, CMOS camera, CCD camera, area array camera, line scan camera, infrared camera, 1394 interface camera;
Industrial lens: FA lens, high-resolution lens, image scanning lens, condenser lens, telecentric lens, etc.;
Light source: LED light source, ultraviolet illumination system, infrared light source, fiber optic illumination system, etc.;
Auxiliary products: sensors, calibration blocks, gratings, gaskets, wiring and connectors, power supplies, backplanes.
(2) Machine vision accessories:
Image processing system: optical text, recognition system, automation / robot technology, infrared image system;
Machine vision integration: character processing and recognition systems, automation/robot technology, infrared image systems, tobacco, banknote printing, electronic assembly, quality inspection, automatic identification (OCR/OCV), measurement, intelligent vision, surface inspection, printing, packaging, Complex industrial object vision online, automobile manufacturing, license plate, intelligent transportation, biometrics, monitoring, medical testing, optical inspection, etc.