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A 2D Ternary Barcode Detection System with a Dual Threshold

机译:具有双阈值的2D三元条形码检测系统

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A 2D ternary barcode detection system employing a dual threshold method has been developed to increase both detection speed and range. This system, adaptable to any ternary barcode pattern through the subtraction of each attenuated enveloped line of two sampled detected barcode signals from the original sampled signals, respectively, enables long range detection at higher scanning speeds while still containing a large amount of information. The prototype system, combined with a time-sharing laser light emission method that allowed the system to double effective scanning speeds, and using a two-line ten-character ternary barcode consisting of nine elements per character with a minimum bar width of 0.4 mm, was confirmed to successfully detect over a range of more than 5 cm at a maximum scanning speed of 835 scan/sec, which is 16 times higher than conventional CCD cameras. This system is expected to enable the real-time identification of goods on production lines and in automated warehouses.
机译:已经开发了采用双阈值方法的2D三元条形码检测系统以提高检测速度和范围。该系统,通过从原始采样信号的两个采样检测的条形码信号的每个衰减的包络信号的减法适应任何三元条形码图案,使得能够在较高的扫描速度下实现长距离检测,同时仍包含大量信息。原型系统,结合时间共享激光发光方法,使系统能够双倍有效扫描速度,并使用由每种字符的九个元素组成的两行十个字符的条形码,最小条形宽度为0.4mm,确认以835扫描/秒的最大扫描速度成功检测超过5cm的范围,比传统CCD摄像机高16倍。该系统有望能够在生产线和自动仓库中实时识别货物。

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