套口机的视控原理及其软件实现

由于针织毛衫套口工序对操作工的视力和经验要求较高，使套口工序成为毛衫编织行业发展的瓶颈。为此，模拟手工套口中的关键环节：织物对齐，探索一种结合计算视觉对织物对齐进行控制的软件系统，以便实现套口工序的自动化和智能化。该软件系统有3个创新点：使用直线检测绕过传统的双目计算框架，从而简化了系统设计的复杂性；去杂滤波机制保证了平行线的提取；聚类计数法能精准地识别刻度线数目。该系统在线运行能够智能地识别判断两侧织物的对齐情况，从而证实了视控化的套口机设计方案是可行的。

Visual-control mechanism on linking machine and its software system

Due of high requirements for operators’ visual ability and experience, loop linking becomes the bottle neck of sweater knitting. In order to realize automatic and intelligent loop linking, simulating the key process of web alignment in the manual operations and establishing one software system of controlling alignment based on computation vision is proceeded. Three creative points occupy in that software system: (1) Using line detection to avoid traditional stereo visual computation framework, as simplified system designing complexity; (2) Unorderly lines filter guaranteeing the extraction of parallel lines; (3) Number counter based on clustering recognizing the precise number of graduation marks. The system runs online with recognition of web alignment in two sides wisely, proving the feasibility of visual-control based linking machine.