On the development trend of machine vision in Chin

On the development trend of machine vision in China

among the many factors on which machine vision depends for popularization and development, there are technical and commercial aspects, but the demand of manufacturing industry is decisive. The development of manufacturing industry has brought about an increase in the demand for machine vision; It also determines that machine vision will gradually develop in an open direction by simply collecting, analyzing and transmitting data and judging actions in the past. This trend also indicates that machine vision will be further integrated with automation

machine vision has developed for 15 years since its inception. It should be said that machine vision, as an application system, its functional characteristics are gradually improved and developed with the development of industrial automation

at present, the total volume of the whole global visual market is large, and the standard sj/t11281 ⑵ 003 for LED display screen test method is about US $6-7 billion, which is growing at an annual growth rate of 8.8%. In China, this figure seems a little huge at present, but with the development of processing and manufacturing industry, China's demand for machine vision will rise

definition and characteristics of machine vision

in short, machine vision is to use machines instead of human eyes to make measurements and judgments. Machine vision system refers to converting the captured object into image signals through machine vision products (i.e. image pickup devices, divided into CMOS and CCD), which are transmitted to a special image processing system, and then converted into digital signals according to pixel distribution, brightness, color and other information; The image system performs various operations on these signals to extract the characteristics of the target, and then controls the on-site equipment action according to the discrimination results

the characteristic of machine vision system is to improve the flexibility and automation of production. In some dangerous working environments that are not suitable for manual operation or where artificial vision is difficult to meet the requirements, machine vision is often used to replace artificial vision; At the same time, in the process of mass industrial production, the efficiency of using artificial vision to check the product quality is low and the accuracy is not high. Using machine vision detection method can greatly improve the production efficiency and the degree of automation of production. And machine vision is easy to realize information integration, which is the basic technology to realize computer integrated manufacturing

it is precisely because the machine vision system can quickly obtain a large amount of information, and it is easy to process automatically, and it is also easy to integrate with design information and processing control information. Therefore, in the process of modern automatic production, people widely use the machine vision system in the fields of working condition monitoring, finished product inspection and quality control. In China, this application is also gradually being recognized, and the most direct response is that the domestic demand for machine vision will be increasing

application status of machine vision at home and abroad

abroad, the popularity of machine vision is mainly reflected in the semiconductor and electronic industries, of which about 40% to 50% are concentrated in the semiconductor industry. For example, PCB printed circuit: various production printed circuit board assembly technologies and equipment; Single, double-sided, multilayer circuit boards, copper clad laminates and required materials and accessories; Auxiliary facilities, consumables, inks, potions, and accessories; Electronic packaging technology and equipment; Silk printing equipment and silk peripheral materials, etc. SMT surface mounting: SMT process and equipment, welding equipment, testing instruments, repair equipment and various auxiliary tools and accessories, SMT materials, patch agents, adhesives, fluxes, solders and anti-oxidation oils, solder pastes, cleaning agents, etc; Reflow welding machine, wave soldering machine and automatic production line equipment. Electronic production and processing equipment: electronic component manufacturing equipment, semiconductor and integrated circuit manufacturing equipment, component molding equipment, electronic tooling. Machine vision system has been widely used in all aspects of quality inspection, and its products play a decisive role in the application. In addition, machine vision is also used in other fields

in China, the above industries themselves belong to emerging fields, and the popularity of machine vision product technology is not enough, resulting in the application of the above industries is almost blank, even if there is, it is only low-end applications. At present, with the improvement of supporting infrastructure and the accumulation of technology and funds, the demand for industrial automation and intelligence using image and machine vision technology has begun to appear widely in all walks of life in China. Relevant domestic colleges, universities, research institutes and enterprises have made active thinking and bold attempts in the field of image and machine vision technology in the past two years, and gradually began the application of industrial field. It is mainly used in pharmaceutical, printing, mineral water bottle cap detection and other fields. Most of these applications are focused on drug detection and packaging, printing color detection, etc. There are few really high-end applications, so the application space of the above related industries is still relatively large. Of course, other fields such as fingerprint detection also have a good development space

future development trend of machine vision in China

among the many factors on which machine vision depends for popularization and development, there are technical and commercial aspects, but the demand of manufacturing industry is decisive. The development of manufacturing industry has brought about an increase in the demand for machine vision; It also determines that machine vision will gradually develop towards openness from simply collecting, analyzing, transmitting data and judging actions in the past. This trend also indicates that machine vision will be further integrated with automation

demand determines products. Only products that meet the demand can have room for survival, which is an unchanging law. The same is true of machine vision

in the future, the development of machine vision in China is mainly manifested in the following characteristics:

1. With the development of industrialization, the demand for machine vision will be on the rise

the part with large space for the development of machine vision is in the semiconductor and electronic industries, and according to relevant data in China, there are obvious signs of recovery in the global integrated circuit industry; At the same time, the global economic recession has made China's integrated circuit industry gain market advantages, cost advantages, talent return and other advantages; The state has strengthened the planning of the strategic field of integrated circuit industry, "informatization drives industrialization", and taking the "emerging industrialization road" has brought great development opportunities to the integrated circuit industry, especially the huge market space for high-end products and innovative products. Design links, national strategic fields, 3C application fields, and traditional industrial application fields have become the key investment fields of the integrated circuit industry in the next few years

in addition, China has become an important demand market for global integrated circuits. According to relevant data, the demand scale of China's integrated circuit market in 2002 was 113.55 billion yuan, accounting for 9.76% of the world market. In 2002, the total sales volume of China's integrated circuit market was 28.32 billion pieces, with a total sales volume of 113.55 billion yuan, an increase of 26.2% year-on-year. China has become a hot spot of semiconductor investment in the world in recent years. In many parts of the country, especially in the Yangtze River Delta region, new IC manufacturing lines and packaging and testing lines have been invested in construction, and the number of IC design companies has doubled every year. Under the guidance of industrial policies, Shanghai, Beijing, Tianjin and Shenzhen have shown a good momentum of investment in IC: Tianjin Motorola has invested US $1.5 billion, the 8-inch chip production line with a monthly investment of 25000 chips and Shanghai SMIC international has invested US $1.4 billion, and the project with a monthly investment of 42000 8-inch chip silicon chips has been put into operation. In addition, the latest survey data of China Semiconductor Industry Association shows that the total investment in China's IC industry from June 2000 to August 2002 was about 30billion yuan, equivalent to the total investment in the past 40 years. The number of IC design units in China quadrupled in two years, and has surged to 389, with 7-8 with incomes of more than 100 million yuan; There are about 10 professional testing companies, and China's IC testing industry is beginning to take shape

according to the above data, China's semiconductor and electronic market has begun to take shape, and such a powerful semiconductor industry will need high-quality technology as a backing. At the same time, his requirements for high quality and high integration of products will be higher and higher. Coincidentally, machine vision will help them solve the above problems, so the industry will be the best place for machine vision. At the same time, the demand for machine vision will be booming

2. Unified and open standards are the driving force for the development of machine vision

at present, there are nearly several machine vision product manufacturers in China. Compared with foreign machine vision products, the biggest gap between domestic products is not only in technology, but also in brand and intellectual property rights. Another current situation is that the current domestic machine vision research level of material technology in China is still relatively high, and the products are mainly agents of foreign brands, so as to gradually approach the line of independent research and development of products, starting late. In the future, the quality of machine vision products cannot be measured by a single factor. It should be judged gradually according to the unified international standard. With the gradual opening of automation in China, it will lead the gradual opening of related product technologies. Therefore, relying on closed technology is difficult to promote the development of the whole industry. Only by forming unified and open standards can more manufacturers develop products on the same platform, which is also the driving force to promote the development of Chinese machine vision towards the international level

3. Embedded products will replace board and card products

from the perspective of the product itself, machine vision will increasingly rely on PC technology, and will be more closely integrated with other control and measurement such as data acquisition. And embedded products will gradually replace board and card products, which is a growing trend. The main reason is that with the rapid development of computer technology and microelectronics technology, the application field of embedded system is becoming more and more extensive, especially its low-power technology. In addition, the vast majority of embedded operating systems are based on C language, so using C high-level language to develop embedded systems is a basic work. The advantage of using high-level language is that it can improve work efficiency and shorten the development cycle. More importantly, the developed products have high reliability, good maintainability, and are convenient for continuous improvement and upgrading. Therefore, embedded products will replace board and card products

4. Standardization and promoting the transformation and upgrading of equipment will also be the only way for machine vision.

in addition, since machine vision is a part of automation, there will be no machine vision without automation. Machine vision software and hardware products are gradually becoming the core system in different stages of collaborative production and manufacturing, Both users and hardware suppliers use machine vision products as a tool for information collection on the production line, which requires a large number of machine vision products to adopt "standardized technology". Intuitively speaking, it should be gradually opened with the opening of automation, and secondary development can be carried out according to the needs of users. Nowadays, automation enterprises are advocating integrated software and hardware solutions. Machine vision manufacturers should not only provide products, but also gradually move towards system integrators of integrated solutions in the coming years

in the next few years, with the development of China's processing and manufacturing industry, the demand for machine vision will gradually increase; With the increase of machine vision products and the improvement of technology, the application of machine vision in China will shift from the initial low-end to the high-end. Due to the intervention of machine vision, automation will develop in a more intelligent and faster direction. In addition,