Reliable Power Monitoring System Based on Real-Time and Fault-Tolerant CORBA

Abstract

To improve the real-time and fault-tolerant performance of data transmission in sensor-based distributed power monitoring system, the principle of event service in common object request broker architecture was analyzed, and the "subscribe/publish" mechanism was realized by improving and extending event service in push model in order to reinforce real-time performance. And a semi-active copy method of fault-tolerant was proposed under push model. On this basis, the model of real-time and fault-tolerance middleware in the power monitoring system was designed and realized with these methods. This model was used in the network communication layers of multiple power monitoring systems, and the results shows that the model is safe and reliable with real-time response.

Keywords

• Power monitoring
• CORBA middleware
• Event service
• Real-time
• Fault-tolerance
• SCADA.