钢丝绳在线非接触测长系统研究

Non-contact Measuring System of Length of on-line Steel Wire Rope

摘要:

钢丝绳成品长度是供货合同的重要指标,与经济效益、企业信誉息息相关；针对在线钢丝绳纹理变化特点,提出一种基于线结构光的非接触测长系统,通过比较钢丝绳在不同时刻,不同位置的线结构光投射条纹图像的相似性,间接测量绳长;对投射条纹提取、条纹相似性度量等关键算法进行了阐述;实验证明,系统解决了传统接触测长固有的打滑、磨损等问题,避免了钢绳在线速度变化、捻距误差等因素的影响,具有准确、高效、实时性强的特点。

Abstract:

The length of the steel wire rope product is an important indicator of supply contract and is closely related to the economic benefit and reputation of the corporate. An non-contact measuring system of the length based on the changing texture characteristics of the online steel wire rope is presented, which indirectly tests the length of the wire rope by calculating the similarity of the linear structured light images of the steel wire rope in different time and location. The algorithms of extracting the linear structured light texture and calculating the image similarity are described. The experiments indicate that the system has the characteristics of high accuracy, high efficiency and strong real-time and overcomes the disadvantages of the skid and abrasion of the contact length measurement and the influences of the changing rope speed and the wire pitch error.