2-D Absolute Positioning System Sets Performance Bars Higher

Guaranteeing precise positioning always, the PXV 2-D absolute positioning system’s reading window has been enlarged to approximately 120 mm x 80 mm, meaning that the Data Matrix code tape is always located within the sending range. The window has an increased depth of focus range, allowing it to capture even more codes simultaneously and guarantee position detection through multiple redundancy.

 

Unlike similar systems, the PXV requires only a 2D camera, ensuring that irritation relating to track switches is excluded. To prevent this, the cameras in the two-camera systems can receive the relevant differing position signals in these areas.

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A certain degree of contamination on the code tape is often unavoidable during everyday operation. For this reason, the codes for the PXV have been expanded to 15 mm x 15 mm without compromising the resolution, and a coarse-grained design ensures that they are unaffected by contamination. Due to redundant detection, the system also cannot be disrupted by the destruction of individual codes. The code tape can be interrupted by a stretch up to 80 mm without affecting position detection.

 

Using just one sensor, the system’s new safety technology combines a 2D reader with a three-colored Data Matrix code tape. The special code tape contains two overlapping Data Matrix codes in red and blue. The 2-D reader is equipped with two different colored LED rings—also red and blue. These rings are activated separately and then read just one Data Matrix code each. An SIL 3/PL e absolute position is always provided as the result. For even deeper insights, checkout the PVX2-D product page.

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