In the 1990s, in the face of such a huge production volume, the use of manual inspection recruited a large number of inspectors, invested a lot of labor costs, training costs, etc., but if the factory invests more costs, it can not effectively ensure that the detection of the product's pass rate. The automatic visual inspection equipment perfectly solves the artificial detection of a single, repetitive, automatic visual inspection equipment automation capabilities, objective non-contact detection, high-precision detection and other characteristics, has become the first choice of manufacturers. Machine vision inspection can not only provide the qualified rate of product inspection, but also can form real-time data feedback, so that engineers and technicians can find out the causes of defects in time,vision system companies improve production accuracy and save production costs. China's machine vision technology began to develop as early as the 1990s. In today's era of industrial development and automation, the application of machine vision technology will be the future trend, and the popularization of machine vision technology heralds the future of automation.

With the development and upgrading of domestic industry, a variety of precision parts (such as automotive screws, automated inspection system electronic screws, etc.) need to be comprehensively tested for appearance and dimensional quality, and prolonged manual visual inspection of the eyes is easy to fatigue, resulting in low efficiency and accuracy of product testing. Replacing manual vision with machine vision can greatly improve production efficiency, appearance screener and inspection accuracy, reduce customer complaints and lower labor costs. The pursuit of perfect product quality is the dream goal of many companies. Product and parts inspection visual inspection equipment screening machine is based on the map inspection technology system developed fully automatic optical inspection and screening instruments, applicable to plastics, hardware, electronics, food, automotive, electrical appliances, building materials, ceramics, Huimu image recognition system sanitary ware, and other industries need to be fully inspected products or parts of the mass production. The shape, size, sorting, appearance quality, color, burr, processing quality, printing quality, assembly position, there is no leakage of 100% high-speed full inspection of the product, to a large extent, replacing the human eye inspection, is to improve product quality, save labor costs, reduce data loss, improve process control of the necessary instruments. The production line can be installed with automatic photoelectric inspection and screening system, online inspection of products in the production process to find no defects.

Unified and open standards are the driving force for the development of machine vision optical screening machines. At present, there are many manufacturers of machine vision products in China. Compared with foreign machine vision products, the biggest gap between domestic products lies not only in technology, but also in brand and intellectual property rights. Another status quo is that domestic machine vision products mainly rely on foreign brands, thus gradually moving towards the route of self-developed products, starting late. In the future, the quality of machine vision products cannot be measured by a single factor. It should be judged gradually in accordance with unified international standards. With the gradual opening of China's automation, the related product technology will also be gradually opened. Therefore, it is difficult to promote the development of the whole industry by relying on closed technology. Only by forming a unified and open standard can more manufacturers develop products on the same platform. This is also the driving force for the internationalization of machine vision in China. Embedded products will replace flat panel products. From the point of view of the product itself, machine vision will rely more and more on pc technology and will be more closely integrated with other means of control and measurement such as data acquisition. Embedded products will gradually replace flat panel products, which is a growing trend. The main reason for this is that with the rapid development of computer technology and microelectronics technology, embedded inductive dark crack detection equipment system is more and more widely used, especially its low-power technology has been emphasized. In addition, most embedded operating systems are based on the c language, so the development of embedded systems using the c high-level language is a basic work. The advantage of using high-level language is that it can improve the efficiency and shorten the development time. What's more, the cycle is highly reliable, maintainable and easy to improve and upgrade the product. Therefore, embedded products will replace flat panel products.

automatic visual inspection system is a new inspection technology appearance screening machine, and its application areas cover almost all modern manufacturing industries. Visual inspection has the advantages of non-contact, fast speed, strong on-site anti-interference ability, etc. It is replacing manual labor for automatic product inspection, process validation and even automatic control of the production process. In this paper, we extract the edge image of the gear product and the product design drawing, and apply mutual information technology to align the edge image with the design drawing, so that the objects in the two drawings overlap as much as possible. On this basis, the two images are fused by wavelet transform, and finally two objects are displayed in the same center position in the same image, which is equivalent to the manual superimposed comparison of two objects. The inspector can directly visually inspect the product and judge whether the gear product is qualified according to the registration effect, which does not require the inspector to have special mechanical knowledge and the inspection effect is intuitive. Therefore, it is necessary to purchase a machine vision inspection equipment to detect the appearance of defects in gear products, which can save a lot of manpower and material resources, the effect is great.

Automated visual inspection network equipment management application in product appearance quality and safety inspection, greatly enhance the efficiency of China's product structure inspection, timely research to find their own product appearance in the defects, for a re-processing or elimination. Machine vision recognition technology in the product detection method operation is very simple, the operation situation is more economical and stable, compared with the traditional product appearance inspection data technology, machine vision science and technology has many advantages: first, the machine vision technology level detection accuracy is higher than the traditional detection technology, so that the efficiency of the detection of the quality of the target of the appearance of our products to be affected by a great improvement. Machine vision technicians through the collection of images, after which students to carry out some deep-seated problem analysis, detection work speed has improved, stability has been continuously enhanced. The ability to apply machine vision technology is conducive to the continuous development of our enterprises in the direction of automation and intelligence, through the rapid collection of this information, the system is able to quickly judge, can not be achieved in a short period of time to provide a large amount of user information processing, the development of the enterprise has a very important. Secondly, machine vision technology has been realized on the product quality inspection, the product appearance of the quality control system to make a guarantee, to maintain the image of the enterprise and brand. Enterprise appearance of defective products into the market will seriously damage the social image of small and medium-sized enterprises, machine vision technology can be unqualified products are not timely culled to find out what is not suitable.