基于字典算法、虚实结合的新型道岔控制电路实训系统

New Practical Training System for Turnout Control Circuits Based on Dictionary Algorithm and Virtual-Reality Integration

目的:道岔位置正确是保证列车安全运行的必要条件之一,道岔位置由道岔控制电路检测、判断,并给出相关信息。为使职业院校学生和企业职员能围绕道岔控制电路更加高效地开展实践技能训练活动,研制新型的道岔控制电路实训系统势在必行。方法:根据企业调研报告和实践教学经验,以企业标准道岔控制电路为基础,以双模块热备冗余IO(输入输出)控制器为桥梁,以仿真联锁系统为核心,设计道岔控制电路实训系统。实训系统通过字典算法实现道岔信息的采集与命令驱动;采用虚实结合的方法,结合实体设备和信息技术,实现道岔独立控制的联锁关系,通过软故障方式来控制电路状态,实现电路图实时动态显示和全方位实践信息管理等功能。结果及结论:基于字典算法、虚实结合的新型道岔控制电路实训系统能通过操作界面监督道岔位置和状态、控制道岔动作,还具有以下特点:能更加高效、安全地进行实践技能训练;能保持道岔控制电路结构和电气特性、检修与维护作业流程标准和方法不变;能使软件灵活地适配硬件变化,提高了工程施工和后期维护升级的效率。

Objective:Ensuring the correct turnout position is essential for train safe operation,which is achieved through the detection,evaluation,and relevant information delivery of turnout control circuits.To effectively carry out training activities for practical skills related to switch control circuits for vocational school students and industry personnel,the development of a new PTS(practical training system)for turnout control circuits becomes necessary.Method:Based on enterprise investigation reports and practical teaching experience,with enterprise standard turnout control circuit as foundation,dual-module hot backup redundant I/O(input/output)controller as bridge and centered on simulation interlocking system,the turnout control circuit PTS is designed.The PTS utilizes dictionary algorithm to collect switch information and drive commands;adopts virtual-reality integration method and combines physical equipment with information technology,to establish interlocking relationship for independent turnout control.The system employs soft fault methods to manipulate circuit states and realize functions such as real-time dynamic display of circuit diagrams and comprehensive practice information management.Result&Conclusion:The new turnout control circuit PTS based on dictionary algorithm and virtual-reality integration,can monitor turnout positions and states and control turnout actions through an operation interface,with the following features:carrying out practical skill training more efficiently and safely;maintaining the structure and electrical characteristics of turnout control circuits,the standardized procedures for maintenance and repair operation;adapting to hardware changes through flexible software integration,and improving efficiency in engineering construction and subsequent maintenance and upgrades.