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Construction method and implementation of hardware-in-the-loop real-time dynamic simulation platform for airborne environment control system

机译：机载环境控制系统半实物实时动态仿真平台的构建方法与实现

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摘要

In order to carry out the ground integration and flight simulation experiment of the environment control system (ECS) in unmanned aircraft, the hardware and software of the hardware-in-the-loop (HIL) real-time simulation platform based on VxWorks system was developed. In this paper, the structure and function of a HIL real-time and dynamic simulation platform based on distributed architecture for airborne ECS is presented, and main control software and related communication interface matching with the platform has also been independently developed. Then, the simulation platform can satisfy all sorts of simulation, and its effects are distinct, image and intuitive. The biggest innovation was the dynamic simulation for airborne ECS through main control software, and the simulation platform can achieve the co-simulation of large-scale systems with the network. When the co-simulation task is being performed, control instructions and external simulation data from the large system or remote control computer are transmitted into main control computer and two real-time simulation computers by Ethernet. After several simulation experiments, the results were analyzed and showed that the trend of simulation data was consistent with physical experimental data although partial data had a certain degree difference, and the error of platform simulation results was within the allowable range in the practical application. By using the simulation platform, simulation data can be comprehensively and intuitively displayed, the cost and period of development are largely decreased, and the airborne ECS gains excellent reliability and durability.
机译：为了进行无人飞机环境控制系统（ECS）的地面集成和飞行仿真实验，基于VxWorks系统的硬件在环（HIL）实时仿真平台的硬件和软件进行了设计。发达。提出了一种基于机载ECS分布式架构的HIL实时动态仿真平台的结构和功能，并独立开发了与该平台匹配的主控软件和相关的通讯接口。这样，该仿真平台就可以满足各种仿真需求，其效果是鲜明的，直观的，直观的。最大的创新是通过主控软件对机载ECS进行动态仿真，仿真平台可以实现大规模系统与网络的协同仿真。当执行协同仿真任务时，来自大型系统或远程控制计算机的控制指令和外部仿真数据将通过以太网传输到主控制计算机和两台实时仿真计算机中。经过多次仿真实验，分析结果表明，尽管部分数据有一定程度的差异，但仿真数据的趋势与物理实验数据一致，平台仿真结果的误差在实际应用中允许的范围内。通过使用仿真平台，可以全面，直观地显示仿真数据，大大降低了开发成本和开发周期，并且机载ECS获得了出色的可靠性和耐用性。

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