CENTRALIZED REAL TIME MONITORING SYSTEM BASED ON MULTILAYER NETWORK ARCHITECTURE FOR FLIGHT TEST TELEMETRY

Abstract

The flight test telemetry real-time monitoring system is an indispensable part of civil aircraft flight test. With the current trend of network system, the traditional real-time monitoring model has difficulties in satisfying the requirements of increasing number of parameters, diversified types, large-scale system and high concurrency data streams. In response to the above issues, this paper proposes a monitoring system based on a three-tier architecture (data layer, business logic layer and presentation layer). The system uses TMoIP technology and Best Data Engine (BDE) to complete the selection of the best data source of multi-site flight test data streams. At the same time, the use of portability and rapid integration enables hundreds of terminals to work simultaneously. The system has been used successfully in China’s developing large civil aircraft C919 flight test program. The preparation time of the system has been greatly reduced, and the system performs stably.