随着近年来智能手机设备的快速普及, 2维码已经在商业零售、电子商务领域获得飞速发展。为了拓展2维码在工业制造领域金属零件直接零件标识方面的应用, 采用激光标刻填充方式与识读环境的结合调控方法, 进行了理论分析和实验验证, 取得了铝合金表面激光标刻2维码的手机识读特性数据。结果表明, 由于工艺参量不同, 铝合金表面的激光标刻区域将呈现白色、灰色直至黑色的对比度效果, 通过设置镜像识读环境条件, 并反转2维码标刻, 可以有效解决常规激光标刻白色2维码的无法识读问题。这一结果对开发智能手机2维码识读软件算法、提高激光标刻效率是有帮助的。

Barcodes have been wildly used in commercial retail and e-commerce field with the wide application of smart phones. In order to expand the direct part marking applications in industrial filed, the smart phone recognition characteristics of the laser marking barcodes on aluminum alloy surface were investigated by theoretical analysis and experimental verification. Due to different processing arts, the laser marking area may be in white, grey and black contrast colors. The conventional white barcodes recognition problem can be solved by the combination of complementary laser scanning and mirroring symmetry recognition condition, which has application value for the design of barcode recognition algorithm on smart phones and makes the high efficiency laser marking possible.