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Telescopic mechanism has lots of merits and is used in devices and equipment long before the appearance of robots. This paper explores the merits of telescopic mechanism and designs a cable-driven multi-stage telescopic arm with only one actuated degree of freedom (DOF) for mobile surveillance robots. We use pulleys and cables as the transmission system and use a DC motor together with harmonic drive...
QR codes are the most widely used in two-dimensional barcodes nowadays. Image pre-processing is an important process to achieve QR code image recognition in complex conditions and binarization that directly determines the success or failure of the automatic image recognition technology is a key step in the image pre-processing method. In practical applications, uneven illumination takes a heavy toll...
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