摘要：道岔是列车从一股道转向另一股道的转折设备，它是铁路线路中最关键的特殊设备，直接关系到行车安全。铁路信号微机监测系统能实现实时监测，远程监视等功能，是保证行车安全、加强信号设备结合部管理、检测信号设备状态、发现信号设备隐患、分析故障的重要行车设备。自TJWX-2000型微机监测系统广泛应用以来，电务段的信号设备文护质量、运用状况均有明显的提高，文修管理、安全管理、技术管理也逐渐向科学化、现代化迈进。为了更高效准确的文护微机监测系统的安全性和可靠性，本次设计采用更人性化的VB程序来设计，在道岔实时监控达到高效准确的前提下，给操作员提供了更简捷人性化的容错率高的操作识别界面和智能处理功能。关键字： 道岔；微机监测系统；实时监控 4497

Turnout Monitoring System PC Programming Designed
Abstract: Turnout is device that a train from one channel to another shares road turning steering , which is the most critical railway line special equipment directly related to driving safety.Railway signal computer monitoring system could achieve real-time monitoring, remote monitoring and other functions, is the important driving device which to ensure traffic safety, enhance the signal junction device management, device status detection signal and found that signaling equipment problems, failure analysis. Since TJWX-2000 microcomputer monitoring system has been widely used, electrical equipment maintenance services segment signal quality,the conditions of application were significantly improved, maintenance management, security management, technology management also gradually improve toward scientific and modern. In order to maintain a more efficient and accurate computer monitoring system security and reliability, The design uses a more humane VB program to design, under the premise of turnout real-time monitoring  achieved efficient and accurate, Provides the operator with a more simple and user-friendly operation with high fault-tolerant recognition interface and intelligent processing functions.

Key Words: turnout; computer monitoring system; real-time monitoring
 
目 录
1绪论    1
1.1 概述    1
1.2 国内外研究现状与水平    1
1.2.1 国外高速铁路道岔监测现状    1
1.2.2我国铁路道岔监测系统    2
1.3 发展趋势    2
1.4 本论文研究意义    2
1.5 本论文研究方法    3
2 道岔控制电路分析    4
2.1 道岔控制方式    4
2.2 道岔控制原理    4
2.3 道岔启动电路的技术条件    4
2.4 各采集机的功能    5
3 铁路信号微机监测系统    6
3.1 微机监测系统的系统结构    6
3.2 微机监测系统的硬件结构设计    7
3.2.1 系统的设计原则    7
3.2.2 监测系统的结构设计    8
3.3 微机监测系统通信协议    9
3.3.1 PROFIBUS简介    9
3.3.2 PROFIBUS-DP介绍    9
3.4 本设计中微机监测系统的总体结构图    10
4 PLC软硬件设计    11
4.1 STEP 7的简介    11
4.2 用户程序的基本结构    12
4.3 微机监测具体的实现方法    13
4.4 微机监测设计实例与分析    14
4.4.1 硬件部分    14
4.4.2 软件部分    15
5 Visual Basic的分析及设计    17
5.1 Visual Basic的简介    17
5.2 VB与ACCESS通信的简介    18 VB道岔监测系统上位机程序设计+模拟TJWX-2000型信号微机监测系统:http://www.751com.cn/tongxin/lunwen_1202.html