IAESS仿真中数据分发层的设计与实现

摘要

Integrated aircraft environment surveillance system (IAESS) merges the traditionally separated airborne avionics equipment, which can promote the safety degree of flight while reducing the cost and space. In IAESS ground simulation, prodigious amount of real-time data are transformed among the subsystems. By using communication technology based on memory area objects, self-defined communication protocol, multithreading and dual-buffer technique, the data distribution layer for IAESS is designed and implemented. Performance test indicates that this layer is credible, scalable, and sufficient to transmit the information between the subsystems of IAESS simulator, and it is capable of real-time application.%飞机综合环境监视系统(IAESS)将传统的机载航电设备集成在一起,能有效地提高飞行安全程度并降低硬件成本和占用空间.在地面IAESS仿真系统中,各子系统之间有着大量的实时数据传输.为提高海量数据传输的可靠性,提出基于内存区对象的通信技术,通过自定义通信协议,并使用多线程和双缓冲区,设计实现了IAESS中的数据分发层.通过对实际仿真系统的测试和分析,证明所提出的数据分发层能够可靠、高效地传输各系统之间的数据,完全满足IAESS系统的实时性要求.