In automotive production, the unique identification of components is a central component of quality assurance. In the case of dashboards, this is often done via applied labels with codes. In this application, two codes per component are to be automatically recorded from a great distance. Large working distances and unfavourable viewing angles pose particular challenges.

Reading codes on dashboards from a long distance

The challenge lies not only in the long working distance, but also in the position of the codes. One of the codes is located at the bottom of the dashboard and is not perpendicular to the camera, but is placed at a shallow angle.

In addition, the label sizes vary, with the smallest codes having an edge length of only a few centimeters. For reliable detection, both resolution and image quality must therefore be optimally coordinated.

High-resolution image processing for code recognition

The solution is based on the B60 Smart Camera, which is particularly suitable for applications with long working distances due to its high resolution. In combination with a C-mount lens with a long focal length , the field of view can be optimally adjusted so that even small codes are clearly captured from a distance.

A decisive advantage of the solution is the stable code recognition even at unfavorable viewing angles. This means that both codes can be read reliably without having to adjust the component position.

Reliable code evaluation with integrated image processing

Infrared lighting is used for the lighting, which is specifically aligned from bottom to top. This solution ensures that the downward-facing code is also sufficiently illuminated. At the same time, visible light is avoided from disturbing operators – an important aspect in the production environment.

The evaluation is carried out directly in the camera via the uniVision software. Here, the modules “Image Code 1D” or alternatively “Image Code 2D” are used to decode the codes reliably. Integrated processing eliminates additional latency and results are immediately available for further processing in the controller.

Reliable and automated reading of codes on dashboards

With the combination of a high-resolution smart camera, matching optics and coordinated lighting, code recognition on dashboards can be reliably automated, even at large distances.

The result: stable reader results, reduced manual intervention and significant time savings in the production process.

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