At present, the machine vision industry includes the upstream parts-level market, the midstream system integration/complete machine equipment market and the downstream application market. Although the industry is just starting, the competition is extremely fierce, and the Internet and semiconductor giants have been layout, showing that intelligent image processing will be the next arena. In the future, if we fall behind in this field, we will be subject to foreign countries and can only become foreign machine vision top secondary application developers and product agents. Moreover, due to high costs, we cannot complete the transformation and upgrading of domestic manufacturing industry, let alone intelligent manufacturing.
In order to conquer the core technology in the field of machine vision, and machine vision expert at the university of wuhan formed a research and development team, further electronic communications, signal/image processing, computer vision, pattern recognition, big data, intelligent manufacturing, Internet of things, such as basic subjects of crossover study, and closely tracking the forefront of machine vision technology trends at home and abroad, to originality of scientific research achievements into productivity.
"Our core competitiveness lies in our cooperation with domestic technology research and development teams, which occupy the commanding heights in the underlying core components of machine vision and intelligent analysis of deep algorithms." The person in charge said. "Only by adhering to independent innovation and obtaining original achievements in machine vision technology can we truly create a national core of machine vision technology, and then further develop standards based on this, and then continue to promote its wide application in the manufacturing industry."
Development of industry applications: machine vision encounter laser weld tracking detection results
The machine vision technology research and development is inspired by the laser welding seam automation, and "machine vision-laser welding seam automatic tracking and detection system" is developed centering on the two fields of machine vision and laser welding seam tracking and detection for cross-border innovation.
The system choose laser vision sensor for weld automatic tracking system of sensor, with initiative, non-contact, can obtain the 3 d information, high precision and strong ability to resist the electromagnetic interference, sensitivity etc, and joint surface information collected through image acquisition card input to the computer, and then process the information through the computer analysis control signal, and through the movement control CARDS will control signal to the stepper motor drive the two axes of the traveling mechanism, to control the movement of the welding torch.
It is understood that the innovation of the system is mainly reflected in three aspects, including the realization of 3D vision's high-precision positioning of the weld, 3D vision's weld quality detection, and high-precision servo system's realization of real-time control of the weld tracking process. Two core technical indicators have reached the leading position. One is the image accuracy, with the depth reaching 0.02mm and the transverse reaching 0.02mm. The other is the control accuracy of the servo system, whose positioning accuracy reaches 10um and positioning speed reaches 10m/min.
"In fact, to truly realize intelligence, the manufacturing industry still needs to accumulate the data in the operation process of the automatic system and form industrial big data. Through the analysis of these data, the data will be fed back to the system and modified constantly, so as to make the operation of the whole system more intelligent. Therefore, intelligent manufacturing of big data services is also an important direction for us in the future, "explained the company's director.
At present, machine visions-laser weld tracking and detection system is not only used in automobile manufacturing industry, but also widely used in the welding of oil and natural gas pipelines, and the welding and processing of rocket and spacecraft parts, which will play an important role in promoting China's high-precision manufacturing industry. With the further development of machine vision industry, from industrial visual to computer vision, human-computer interaction to self-driving, from virtual reality to automatic object recognition, machine vision plays an important role, will adhere to independent innovation and to expand the market application, assisted by machine vision 2025 plan of the industry in China as soon as possible.
