针对Internet遥操作中的变时延问题,介绍现有的解决方法,并在分析目前普遍采用的单TCP连接控制方式局限性的基础上,提出基于多连接的时延控制方案。该方法避免了单连接控制方式产生的时延连锁累积问题,能在一定程度上减小平均时延和最大时延,并能保证其在一定范围内平稳波动。最后,通过控制单向变时延的实验,证明了该方法的有效性和可行性。
This paper addressed the problem of variable time delay in Iuternet based teleoperation. The currently existing schemes were introduced firstly. Based on the limits analysis of the single-TCP-join scheme which was used widely currently, a time delay control scheme based on multi-join was proposed. It facilitated to avoid the chain-accumulated time delay stemming from the single-join scheme. To some extent, it could also reduce average and maximal time delay and make it fluctuate smoothly. Finally, via the experiment of controlling one-way variable time delay, the feasibility and effectiveness of the scheme were testified.