Advancing quality control: The Evolution, Impact and Future of Defect Visual Inspection (DVI) in Manufacturing
In the complex realm of manufacturing, Defect Visual Inspection (DVI) has emerged as a critical process, evolving significantly over time. The landscape of visual inspection has transformed from manual checks performed by artisans to AI-enhanced automated systems. As manufacturing processes continue to become more sophisticated, the importance and effectiveness of advanced Defect Visual Inspection (DVI) solutions escalate, presenting opportunities for improved quality control.
DVI leverages cutting-edge technologies such as machine learning, computer vision, and artificial intelligence. These technologies can analyse various visual data in real time, surpassing human capabilities in speed, accuracy, and consistency. DVI solutions present manufacturers with an opportunity to identify defects with high precision, preventing costly recalls of products, and potential damage to reputation.
Historical Overview of DVI: The Journey from Manual to AI-Powered Inspection
The inception of DVI can be traced back to the days of manual checks performed by craftsmen. This process became more structured with the advent of the industrial revolution but still relied heavily on human labour. As we entered the early to mid-20th century, technological advancements saw the incorporation of tools like magnifying glasses and microscopes, which enabled greater precision and the detection of smaller defects.
Michael Uyttersprot demonstrating the DVI solution at Embedded World 2023
Late in the 20th century, computer technology advancements opened the door to automated visual inspection, albeit in rudimentary forms. Initial systems often used simple light sensors to detect major defects, a significant leap from manual inspection processes. However, as computing power increased, so did the sophistication of these systems, giving rise to machine vision systems. These utilised cameras and image processing software, often conducting inspections in real time on production lines. They offered a level of consistency and tirelessness beyond the capabilities of human inspections.
The last decade has brought forth the next wave of DVI evolution: AI and deep learning. These technologies have revolutionised visual inspection. Modern systems, such as the DVI solution developed by Avnet Silica in partnership with Deep Vision Consulting, can learn to identify defects in products from imagery examples, improving their accuracy over time. They can analyse complex patterns and detect defects that earlier systems would miss. These advancements have allowed production lines to move towards inspection systems that can adapt and improve continually.
The tool, recently unveiled by Avnet Silica is a state-of-the-art solution that perfectly demonstrates the developments in defect visual inspection technology. This ground-breaking technology offers real-time and precise fault detection by fusing cutting-edge machine-learning algorithms with first-rate image processing methods. The versatility of the DVI tool, which makes it useful in a variety of industries, is one of its main advantages as this tool can efficiently find flaws and maintain product quality in a variety of manufacturing contexts, whether it be for electronics, automobiles, medicines, or packaging. But perhaps even more impressive is the fact that the solution doesn’t require the end-user to have experience in using or setting up machine-learning systems, instead, the user simply takes between 10-30 images of their product without any imperfections and the solution takes care of the rest.
Avnet Silica's DVI solution is based on a SOM combined with a software library
1. Compact Solution 2. Complete Product 3. Cost-effective
DVI Market Analysis: An Expanding Field
As of 2022, the global surface vision and inspection market, which includes DVI systems, was valued at USD 2,525.1 million. Projections suggest a compound annual growth rate (CAGR) of 7.1% from 2023 to 2030. Factors such as rapid global industrialization and manufacturers’ shift toward automation to meet evolving consumer quality demands are expected to fuel this growth. Systems like Avnet Silica's DVI solution offer numerous benefits such as cost efficiency, error reduction, and increased accuracy, helping manufacturers maintain high-quality products and attain higher profits.
The Role of DVI Across Industries
DVI is finding diverse applications across several industries like automotive, electronics, pharmaceuticals, and packaging. Among the array of solutions available, Avnet Silica’s DVI tool stands out. It is highly adaptable, making it applicable to a range of industries. It combines advanced machine learning algorithms with superior image processing techniques to provide real-time, accurate defect detection.
DVI's robust capabilities find applications across a wide range of industries. Notably, it plays a critical role in industries where the precision, safety, and reliability of products are paramount. Let's delve deeper into some prominent examples.
Electronics and PCB Boards
One of the most extensive applications of DVI is in the electronics manufacturing industry, particularly in Printed Circuit Board (PCB) inspection. PCBs are densely packed with electronic components like transistors, resistors, and capacitors. These boards are the heart of virtually all electronic devices and their performance directly influences the reliability and functionality of the device they are housed in.
With the miniaturisation of electronic components, the complexity and density of PCBs have exponentially increased, making manual inspection impractical and highly error-prone. Here's where DVI systems come into play. These systems can conduct precise, high-speed inspections of PCBs, identifying issues like misplaced components, soldering problems, incorrect components, and potential short circuits.
As the electronics industry continues to innovate rapidly, DVI systems are crucial in ensuring product quality during new product introduction (NPI) phases. During NPI phases, manufacturers can use DVI systems to quickly identify and rectify production issues, accelerating the time to market for new products.
Automotive Industry
In the automotive sector, DVI plays a significant role in ensuring the production of high-quality, safe vehicles. Car manufacturing involves numerous components, from simple nuts and bolts to complex engine parts, each requiring precise inspection.
Recalls, like the one experienced by General Motors in 2014, underscore the high costs of overlooked defects in the automotive industry. Advanced DVI systems can help manufacturers avoid such costly recalls, save on warranty costs, and improve brand reputation by ensuring high-quality vehicles.
Pharmaceuticals and Packaging
In the pharmaceutical industry, DVI is essential for maintaining product quality and ensuring regulatory compliance. From inspecting the integrity of tablet coatings and ensuring accurate capsule filling, to verifying the correct labelling and packaging, DVI systems are indispensable in the pharmaceutical manufacturing process.
Similarly, in the packaging industry, DVI is used to detect issues such as incorrect labelling, improper sealing, and physical damage. With the rise of e-commerce and the subsequent growth in the packaging industry, the demand for efficient and reliable DVI systems has seen a substantial increase.
Food and Beverages
Defect visual inspection tools and solutions are crucial for supporting food and beverage manufacturers in maintaining product quality, safety, and compliance. By leveraging machine vision and AI, these tools identify and eliminate defects, contaminants, and foreign objects during the production process. This leads to improved quality assurance, increased efficiency, and reduced waste, resulting in cost savings and a more sustainable manufacturing process. Real-time data and analytics provide valuable insights for process improvement, while traceability integration ensures better recall management and supply chain transparency.
Integrating DVI with Emerging Technologies
DVI’s potential is not confined to these industries alone. Its applications are expanding. AI and machine learning capabilities, as seen in Avnet Silica's DVI solution, enable the system to continually learn and improve its defect detection accuracy, thus ensuring high product quality and minimising wastage.
To sum up, the applications of DVI are far-reaching, penetrating various sectors, and contributing significantly to product quality, safety, and cost savings. As DVI tools become more advanced, we can expect their influence to grow, enhancing the efficiency and profitability of manufacturing processes across the globe
The role of such DVI tools is highlighted by instances where faulty products have had disastrous consequences. The General Motors recall in 2014, caused by defects primarily associated with a faulty ignition switch, is a poignant example. The recall cost General Motors $4.1 billion and led to a considerable human toll. Early and accurate defect detection through advanced DVI systems like Avnet Silica's could help prevent such situations moving forward, underlining the importance of DVI in maintaining product quality, and safety, and preventing costly recalls and legal consequences.
Cost Savings and Efficiency Gains through DVI Implementation
Implementing DVI tools can provide significant cost savings and efficiency gains by effectively addressing defects and preventing potential consequences. Defects left undetected can result in wasted materials, costly rework, warranty claims, and even legal issues. DVI tools not only ensure precise defect detection but also contribute to streamlined production processes, reduced downtime, and improved resource allocation. By combining these factors, businesses can achieve a substantial return on investment and overall cost optimization.
By implementing Avnet Silica's DVI tool, businesses can avoid such costly recalls and their associated expenses. The tool's defect detection capabilities ensure early identification and resolution of issues, minimising the risk of defects reaching the market. This proactive approach not only saves on repair costs but also preserves brand reputation and customer trust. Moreover, the streamlined production processes, reduced downtime, and optimised resource allocation facilitated by DVI tools contribute to long-term cost savings and improved operational efficiency.
DVI systems are also crucial to regulatory compliance, which is important in sectors like the pharmaceutical and automotive industries where the quality and safety of the products are of the utmost importance.
Conclusion
Defect Visual Inspection (DVI) has undergone a remarkable evolution from manual checks performed by artisans to AI-powered automated systems. The advancements in DVI technology have revolutionised the manufacturing industry by offering greater accuracy, efficiency, and cost savings.
The historical overview of DVI showcased its journey from manual inspection to the incorporation of tools like magnifying glasses, microscopes, and machine vision systems. However, the emergence of AI and deep learning in the mid to late 21st century marked a significant milestone, enabling visual inspection systems to continually learn and improve their defect detection accuracy.
DVI's prospects are certainly bright, and we can look forward to a world of production that is safer, more effective, and more profitable with solutions such as Avnet Silica’s leading the way. The era of AI-driven DVI is here, and it will only have a growing impact on the manufacturing sector.
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About Author
Michaël Uyttersprot
Michaël Uyttersprot is Market Segment Manager at Avnet Silica, which is continuing to develop and ad...
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The Evolution, Impact and future of Defect Visual Inspection (DVI) in manufacturing | Avnet Silica
