大型全断面盾构掘进试验台的监控系统设计

开发完善的监控系统是实现盾构自动化施工的重要手段。采用模块化设计方法搭建大型盾构掘进试验台控制系统,由PXI仪器实时采集水土压力信号,PLC控制器对盾构掘进试验过程进行逻辑控制。系统基于Profibus现场总线技术,采用主从式通讯网络实现上位机、控制器及设备间的数据交互,完成现场试验控制。采用LabVIEW编程软件设计用户程序,实现状态监测、参数设置、数据管理及故障报警等功能。测试结果表明此监控系统运行稳定,具有数据传输速度快,抗干扰能力强,可靠性高等优点。

Design of Monitoring System of a Tunneling Test Bench for Large-size Full-face Shields

Development of a perfect monitoring system is an important way to realize automatic construction of a shield. Modular design method is adopted to construct a control system of a tunneling test bench for large size shields. Water and soil pressures signals are collected with PXI instrument in real time and PLC controllers are utilized to logically control the tunneling test procedure for a shield,Based on Profibus field-bus technology,the system adopts master-slave communication network to realize data inter...