采用分布式控制技术的斜巷轨道运输车辆定位与跑车自动防护

Tramcar location for inclined-lane rail transportation and automatic protection for tramcar escaping based on field-bus control technology

介绍了一种基于LonWorks现场总线的斜巷轨道运输监控装置的结构和工作原理。轨道车辆定位技术采用计轴器双对冗余配置,检测结果相互复核的工作方式;在对计轴器信号进行分析时,只有超过有效脉宽的信号才判定为过轴信号;采用总线式道岔控制箱,并结合轨道区间的过轴状态,实现对道岔的远程集中可靠控制;结合车辆检测状态,针对易发生脱钩、断绳、脱轨事故原因进行分析,研究了常闭式、常开式防护装置的控制策略,阐述了跑车防护的检测原理和设计方法。

Introduced a monitoring and control system for inclined-lane rail transportation,which was based on LonWorks field-bus. The tramcar location technology is double axle sensor coupling for redundancy,and their detecting results are mutual checking. In the process of analyzing axle signals,only the signal that is greater than the effective pulse-width can be decided as an effective axle-passing signal. By adopting field-bus control boxes for point-switches,combined with axle passing-signals,the concentration of a reliable remote control for all point-switches can be achieved. Took the detecting states of tramcars into consideration,the causes of some accidents such as decoupling prone,broken rope and derailment were analyzed. At last,two types of devices for preventing tramcar escaping,which were called as normally contact and normally open,were discussed,and their different control strategies for preventing tramcar escaping were also presented.