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Simulation and flight test of a temperature sensing stabilisation system

机译：温度传感稳定系统的仿真和飞行测试

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摘要

Thermopile sensors detect electromagnetic radiation as a function of the object's temperature. Because there is a temperature difference between the cold ground and the warm sky, these sensors could be used to detect the horizon and thus be used as a reference to stabilise a small aircraft, such as an unmanned aerial vehicle (UAV) in visual meteorological conditions (VMC). To verify this hypothesis, a system has been developed providing horizon detection using thermopile sensors to stabilise an R/C model aircraft. The aircraft has gone through a number of flight trials using remote control to enable and disable the stabilisation system. During the flight trials the aircraft was set at various attitudes when the system was enabled. The stabilisation system was able to assume wing level under various bank angles and weather conditions with minimum overshoot and oscillation. Although the system shows good performance during flight trials, most of the original design was done using trial and error. A design tool was needed to implement further improvements to the system and to efficiently implement it on other aircraft. This required a good understanding of the physical behaviour of the system and the interaction between the sensors, aircraft and the environment. A mathematical model of the overall system was developed using the MATLAB/Simulink environment to simulate the behaviour of the system under various conditions. The simulation results were then compared with actual flight experiments. This paper describes the modelling techniques used for the different system components and the results of the simulation compared to actual flight trials.
机译：热电堆传感器根据物体的温度检测电磁辐射。因为在寒冷的地面和温暖的天空之间存在温差，所以这些传感器可以用于检测地平线，因此可以用作在视觉气象条件下稳定小型飞机（例如无人飞行器（UAV））的参考（VMC）。为了验证这一假设，已经开发了一种系统，该系统使用热电堆传感器提供水平检测，以稳定R / C模型飞机。该飞机已经使用遥控器启用和禁用稳定系统进行了多次飞行试验。在试飞期间，启用该系统后，飞机被设置为各种姿态。该稳定系统能够在各种倾斜角和天气条件下假定机翼高度，并且使超调和振荡最小。尽管该系统在飞行试验中表现出良好的性能，但大多数原始设计都是通过反复试验来完成的。需要一种设计工具来对系统进行进一步的改进，并在其他飞机上有效地实施。这需要对系统的物理行为以及传感器，飞机和环境之间的相互作用有很好的了解。使用MATLAB / Simulink环境开发了整个系统的数学模型，以模拟各种条件下系统的行为。然后将模拟结果与实际飞行实验进行比较。本文介绍了用于不同系统组件的建模技术，以及与实际飞行试验相比的仿真结果。

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  • 来源
    《The Aeronautical Journal》 |2005年第1094期|p.167-175|共9页
  • 作者

    P. Herrmann; C. Bil;

  • 作者单位

    Sir Lawrence Wackett Centre for Aerospace Design Technology School of Aerospace, Mechanical and Manufacturing Engineering RMIT University Melbourne, Australia;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 航空;
  • 关键词

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