An Integration Solution for Automatic Optical Inspection Machine

Posted by Chuck Harrell on Dec 23, 2015 10:30:00 AM

As devices are becoming more sophisticated and customers are demanding higher quality, manpower inspection in production lines is hard to do well. Automatic Optical Inspection (AOI) is the key to success in today's production environment to detect faults sooner and more precisely while meeting the increased need for 100% inspection.

Since AOI machines are an essential tool and are widely used in many industries, including semiconductor, PCB, TFT-LCD, automobile, food processing and packaging etc. in recent years, manufacturers are seeking more effective efficient means of implementing their AOI system. 

System Requirements

AOI evaluates the quality of manufactured products with the help of visual information and uses a two-part machine: first a PC-based system performs the defect inspection and then a PLC-based system controls the operation of industrial equipment and processes. Industrial PCs (IPC) are often used as the main control device but these have some shortcomings such as oversized computer cases which take up too much space and require a large cooling fan.

A customer planned to use a compact IPC to improve the old system and requested that the new computer was powerful enough to seamlessly execute programs and tasks; have enough I/O interfaces for future updates and extensions and include a touchscreen for improved operation and maintenance control. The solution also needed to offer a better way to display the inspection results and HMI information on the same screen to minimize staff’s operating time and improve production efficiency.

System Description

Advantech’s proposed solution included a space-saving automation computer, an industrial projected capacitive touch screen monitor and HMI runtime software with easy-to-use features.  Advantech’s TPC-1551T touch panel computers are the latest of their type to use the Intel® Atom™ E3827 1.75 GHz processor and to feature the true flat screen and a multitude of I/O ports while being able to operate in a wide range of temperatures.  

The Intel® Atom™ E3827 1.75 GHz processor is the latest CPU from internationally a renowned processor manufacturer and features an enhanced performance and provides a smooth operating experience in a wide array of industries.

The WebOP Designer and Panel Express software are easy to use integrated development tools for operator panels which saves development time and labor costs. WebOP Designer supports more than 400 communication drivers and users can effortlessly exchange data via simple communication settings (taking only a few minutes), and record the inspection data to generate excel reports. There is no need to install two monitors for the visual inspection system and the HMI system because Panel Express can be used to connect media between both systems (Ethernet Modbus TCP/IP) to display all the information on the same screen, thus fully integrating AOI applications with peripherals to facilitate daily use and maintenance tasks.

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Conclusion

In order to ensure the quality of the manufacturing process, AOI is necessary equipment.  However, a number of manufacturers may be hesitant to use it or put off upgrading their old system because of the time consuming and labor intensive process. Advantech’s integrated solution is able to bring great benefits to users such as using one screen to replace two-monitor configuration as well as providing compact hardware to save space, simple setting with an intuitive user interface to accelerate development time and cost, a wealth of software/hardware resources for future expansion, thereby speeding up users’ AOI system implementation to boost manufacturing productivity.

Topics: Human Machine Interface

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