How to Use Traceability 4.0 Solutions
These smart industrial imagers have an integrated web-based barcode reader interface. Each imager is securely accessible on any web-enabled device using its IP address. The open protocol structure simplifies device integration and eliminates problems with device incompatibility. Web integration includes three user access levels. At the highest level of security and access, users can edit settings that can be saved to the reader's internal memory or on external devices and transferred to other devices to speed the integration of new equipment and changing environment needs. To reduce overall equipment costs, the inspection status of multiple readers can be monitored with a single device. While standard imagers require one display per device, these smart industrial imagers require only one display for multiple devices. That simplifies installation and monitoring of multiple imagers. In addition, web monitoring software is integrated into each smart industrial imager,
enabling remote monitoring of multiple imagers using a tablet or personal computer.
read even high-density data matrix symbols on complex printed circuit boards. Imagers with either type of autofocus can read any code in seconds after being connected, with no setup required. Smart industrial imagers Omron MicroHAWK code readers provide fast and reliable operation and have a rugged, ultra-compact housing with double front window construction to help avoid moisture condensing inside the window. Depending on the model, they are available with IP65/67 protection to assure performance in challenging environments. Image resolutions are available from 0.3 to 5 megapixels. These imagers are available with optics, lighting, and filtering options to optimize the device for the specific operating environment and imaging needs. MicroHAWK features include: n Ethernet/IP, Ethernet TCP/IP, and PROFINET connectivity n 5 to 30 V DC power input with option for power over Ethernet (PoE) n 800 MHz processor speed to support fast image processing n Non-linear calibration (NLC) function improves measurement and locator performance by a factor of 20 by canceling out lens distortion. It outputs measurements in mm and pixels. The same device can support up to 60 frames per second for barcode reading and visual inspection.
Examples of MicroHAWK code readers include: n V430-F000W12M-SRP, 1.2 MP imager with wide field of view 5.2 mm focal length lens, plus standard autofocus, standard red outer light, and plus-mode imaging (Figure 5) n V430-F000L12M-SRX, 1.2 MP imager with narrow 16 mm lens and autofocus to 1,160 mm, standard red outer light, and X-Mode imaging Efficient setup Omron's AutoVISION software can speed the setup and installation of MicroHAWK imagers. With AutoVISION, users can connect to and configure a device, as well as program and monitor a job. AutoVISION jobs are scalable across multiple MicroHAWK imagers, software packages, industrial systems, and tablets and PCs. It can integrate up to 8 imagers into a single system. With AutoVISION, these smart imagers can be used for machine vision inspection functions like part presence, part location, part counting, color detection, and making dimensional measurements. Implementing AutoVISION is a three-step process: n Capture an image with one click n Specify inspection area and assign outputs with drag and drop tool n Start the inspection process with the run button
Autofocusing choices
Autofocusing capability can significantly impact the performance of barcode reading systems in challenging environments. These smart industrial imagers offer a choice of mechanical and liquid lens autofocusing. Mechanical autofocus is implemented with a small motor. Its mechanical nature means it’s subject to wear and metal fatigue and can require replacement on an annual basis. Liquid lens autofocusing changes the lens's focal length by applying a voltage to change the shape of an internal structure consisting of oil and water (Figure 4). Since there's no mechanical wear, liquid autofocus mechanisms can have operating lifetimes of multiple years. With liquid lens technology, the imager can automatically adjust the focus from 50 millimeters (mm) to 1,200 mm and
Figure 5: This 1.2 MP imager has a wide 5.2 mm focal length lens and plus-mode imaging software. (Image source: DigiKey)
n AutoVISION development software is suitable for a range of applications: n Inspection and general machine vision n Packaging lines n Assembly processes n Defect detection
Figure 3: Advanced digital imaging and pixel processing enable X-Mode software to read codes under
challenging conditions. (Image source: Omron)
High-mix manufacturing that's typical of industry 4.0 operations can be supported by automatically selecting from multiple settings to maximize read rates and line speed using the best options based on barcode size, type, lighting and contrast, and location. The system uses ISO standard grading methods for inline monitoring of barcode quality and can trigger an alert if the quality falls below a user-set threshold.
Summary
Traceability 4.0 supports Industry 4.0 manufacturing processes and supply chains but does not completely replace earlier versions of traceability in other applications. High-performance imagers are a critical element in the deployment of traceability 4.0. Smart industrial imagers are available with autofocusing capabilities and the ability to operate reliably under challenging environmental and lighting conditions. NLC software improves measurement accuracies by up to 20X, and available auto- configuration software speeds the deployment of high-performance traceability systems.
Figure 4: Mechanical autofocus (left) requires more maintenance resulting in more downtime than liquid lens autofocusing (right). (Image source: Omron)
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