基于硅光电池的纬纱信号检测

李耀杰 沈丹峰 王荣军 王玉 李靖宇

摘要： 随着喷气织机技术水平和引纬速度的不断提高，纱线检测的漏检和误检问题就显得十分重要，目前红外光电探纬器在使用时容易受其他因素干扰，且信号处理电路比较复杂，容易出现漏检和误检的情况。针对这些问题，文章采用一种新的光电检测方法采集纬纱信号，并通过滑动均值滤波算法对采集的信号进行处理。通过分析不同功率激光源、不同灰度纱线、不同直径纱线对采集信号的影响，为纱线漏检和误检次数统计提供依据。结果表明：激光功率和纱线灰度变化会显著影响漏检和误检次数的变化，纱线直径变化没有明显影响，随着激光功率的不断增加，漏检和误检次数最小的纱线灰度等级也不断增加，同时这种方法的漏检率和误检率远低于红外光电检测的漏检率和误检率。

关键词： 光电检测法;滑动均值滤波算法;漏检率;硅光电池;纬纱信号检测;激光源

中图分类号： TS103.74

文献标志码： A

文章编号： 1001-7003（2021）12-0028-06

引用頁码： 121106

DOI： 10.3969/j.issn.1001-7003.2021.12.006（篇序）

Abstract： With the continuous improvement of air-jet loom technology and weft insertion speed， the missed detection and false detection of yarn have become very important. At present， infrared photoelectric weft detectors are prone to the interference of other factors when operating， and the signal processing circuit is complicated， easily resulting in missed detection and false detection. In order to address these problems， a new photoelectric detection method was adopted to collect the weft signals， and the collected signals were processed using mean sliding filter algorithm. The influence of different power laser sources， different yarn gray level and different diameters on signal collection was analyzed to provide a basis for the statistics of the time of missed detection and false detection. The results have shown that changes in laser power and yarn gray level would significantly affect the changes in the times of missed detection and false detection， and the change in yarn diameter has no obvious effect. With continuous increase of the laser power， yarn gray level with the minimum missed detection and false detections keeps increasing. Also， the missed detection rate and false detection rate by using method study are much lower compared with infrared photoelectric detection method.

Key words： photoelectric detection method; mean sliding filter algorithm; missed detection rate; silicon photocell; weft signal detection; laser source

纺织工业是中国的重点支撑产业，有着非常广阔的发展前景[1]。纺织机械上有纱线经过的地方通常需要有适当的张力调节装置和断纱检测装置[2-3]。纱线检测装置性能的优劣直接影响产品质量和生产效率，目前无梭织机纬纱检测分为接触式和非接触式。其中接触式纱线检测有两种：一种是采用杠杆式结构，这种结构常面临由于飞絮、油污等问题造成检测装置灵敏度降低，以及纱线张力的波动引发误停车等问题。……