With the continuous improvement of industrial tablet computer technology and the continuous development of VLSI (Very Large Scale Integrated Circuit), the continuous maturity of image processing and image recognition technology has led to great achievements in both theoretical and practical applications. It has also been widely used in many fields. Image is the basis of vision, and vision is an important means of human perception. As an automatic recognition image pattern recognition technology, after more than half a century of rapid development, it has been widely used in aerospace, military, remote sensing technology, biomedicine, medical treatment. Health care, industry and other fields. At the same time, with the emergence of the information superhighway, the digital global village and the rapid development of the Internet, digital images, as a fast and intuitive transmission carrier, will surely become an important means for human beings to obtain information, and will gradually penetrate into other disciplines. Through the investigation and analysis of the work flow of the mold monitoring system in the injection molding industry, this paper proposes solutions for digital image acquisition, processing and pattern recognition, as well as the application of the mold monitoring system in the molding machine. In image pattern recognition, standard sample images are first collected to set the allowable error, and then in processing and production, dynamic images are collected through dynamic video, and the collected images are processed according to the median filtering algorithm to analyze useful products. Then use the adaptive threshold segmentation algorithm for image processing, and finally use pattern matching to compare and analyze according to the set error value to complete the entire automatic identification process. At the same time, this paper also introduces the related principles and technologies of image acquisition, image processing and image recognition. In the hardware design, considering the attenuation of the circuit signal due to the mutual interference of the on-site environment, a resistance element was added to the I/O circuit board. At the same time, a current amplifier was added to the circuit to better drive the switching operation of the relay. In order to improve the driving force of the relay, the hardware device can work stably. Finally, it is proposed how to use DELPHI to develop and design the software and hardware of the mold monitoring system. The test shows that the mold monitoring system can not only improve the quality of the produced products, but also improve the utilization rate of the injection molding machine, prolong the service life of the mold, and reduce the The cost of mold maintenance and repair has been reduced, and the competitiveness of the enterprise market has been improved.
Industrial tablet computer system requirements: To achieve the purpose of monitoring and protecting the mold, an industrial camera needs to be installed on the injection molding machine to capture the images during the operation of the injection molding machine in real time, transmit them to the vision software for analysis and processing, and then quickly feedback to the injection molding machine signal controller. Since the injection molding machine in the factory is usually fully automatic 7*24 continuous and uninterrupted production, the injection molding machine moves very quickly, and it is necessary to ensure that the image can be analyzed and processed stably and quickly, and the processing result can be quickly returned to the injection molding machine signal controller. If any abnormality is found, it must be Immediately react immediately before the injection molding machine locks the mold, and cuts off the mold clamping signal to ensure the safety of the mold. At the same time, the production workshops of many factories have problems such as large dust, unstable voltage, high electromagnetic interference, high local ambient temperature, many and complex lines, and some factories are relatively humid, and the on-site environment is relatively harsh. Under such conditions, industrial tablet computers are required to work continuously and stably for a long time. High requirements are placed on the components, circuit design, and shell protection design of industrial computers. Otherwise, problems will easily occur after a period of time.
