Machine vision system is through machine vision products (that is, image intake device, divided into CMOS and CCD two) will be ingestion target into image signals, transmitted to the special image processing system, get the shape information of the target, according to the pixel distribution and brightness, color and other information, into digital signals; The image system performs various operations on these signals to extract the characteristics of the target, and then controls the action of the equipment on site according to the discriminant results.
The manufacture of the machine vision system has been used in various industries, involving hardware, mobile phone, 3 c electronics, auto parts, medical equipment, semiconductor chip, the new energy industry, as well as intelligent automation, logistics and other fields, greatly improve the product quality, reduce production cost, to enhance human essence demand for industrial products.
Hardware in the production process, inevitably will produce some appearance defects, such as lack of material, cracks, burrs, scratches, bruisesetc., these or large or small defects sometimes not only affect the appearance of beautiful, but also may affect the normal performance of the whole equipment and safe operation.
Factory by adopting hardware detection based on machine vision inspection technology screening machine, a full range of workpiece all sorts of appearance defects detection, eliminate bad product, to avoid the artificial detection misjudgment and residual, on all the test results of the system also statistics, record the hardware number and unqualified hardware quantity, facilitate the real-time monitoring of the quality of product, Conducive to later management and traceability, improve production efficiency and product quality.
With the fierce competition in the mobile phone industry, the emergence of higher quality products and more efficient and lower cost manufacturing technology has become an inevitable choice for enterprises to keep pace with The Times. Therefore, the introduction of machine vision technology is bound to become the majority of equipment and manufacturing enterprises to reduce the cost of the key measures. At present, the well-known mobile phone manufacturers have higher and higher requirements for quality. The detection error of mobile phone components (such as camera, touch screen, flash, card holder, front and rear frame, etc.) should be within 0.05mm. Machine vision technology is non-contact high-precision sensing technology, through the perfect combination of mechanical and electrical equipment, can achieve efficient production and efficient quality control ability.
Machine vision as one of the current emerging technologies