基于实时以太网的某连续式风洞安全联锁系统

摘要

Aiming at the features of long running time, complex system structure and high safety requirement of continuous wind tunnel equipment, establish safety interlock system. Use ProfiNet real time Ethernet as network platform, establish safety interlock system structure, design and realize continuous wind tunnel signal monitoring and safety interlock control function by mutual redundancy of software and hardware. Use loop network technology to improve network transmission reliability, adopt hierarchical multilevel interlock technology to make data transmission better, effectively improve efficiency of wind tunnel. The analysis results show that: the system has advantages of simple structure and stability, it can totally satisfy safety running monitoring requirement of continuous wind tunnel.%针对连续式风洞设备运行时间长、系统构成复杂和安全性要求高的特点，建立一种基于实时以太网的某连续式风洞安全联锁系统。采用 ProfiNet 实时以太网为网络平台，建立安全联锁系统结构，通过软、硬件相互冗余的联锁功能设计实现连续式风洞信号监测和安全联锁控制功能。采用环网技术提高网络传输的可靠性，采用分层多级联锁技术使得数据传输更加完备，有效提高风洞的运行效率。分析结果表明：该系统结构简单、稳定性强，完全满足该连续式风洞的安全运行监控功能。