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摘要:
面向高性能战斗机对精准生命保障的需求,具备生理监测、状态预测和主动干预功能的机载智能氧气系统已成为下一代航空生命保障系统的重要发展方向。系统梳理机载氧气系统的发展历程及国内外智能化研究进展,重点分析电子式氧气调节、飞行员生理监测和生理状态预测3项关键技术的应用潜力及工程化制约因素。分析表明:电子式氧气调节器为将生理信息接入供氧控制闭环提供了工程基础,但复杂飞行环境下的传感可靠性、个体化状态预测、干预策略匹配、闭环稳定性和飞行验证仍是制约其工程应用的关键问题。未来应加强多模态生理信息融合、机理与数据融合建模及分级试验验证,推动飞行员生理状态、座舱环境与供氧设备的协同感知和闭环调控。
Abstract:To meet the growing demand for precision protection in advanced high-performance fighter aircraft and the increasing life-support requirements of pilots, intelligent oxygen systems integrating physiological monitoring, state prediction, and active intervention are expected to become a key component of next-generation life-support systems. Accordingly, the evolution of airborne oxygen systems and recent advances in intelligent oxygen technologies worldwide were systematically reviewed. Particular attention was given to the application potential and major limitations of three enabling technologies: electronic oxygen regulation, multimodal physiological monitoring, and physiological state prediction. Current evidence indicates that electronic oxygen regulators provide the engineering foundation for incorporating physiological information into the oxygen-supply control loop. However, sensor reliability under complex flight conditions, individualized prediction, appropriate matching of intervention strategies to physiological risks, closed-loop stability, and in-flight validation remain major barriers to practical implementation. Future research should integrate multimodal physiological information, hybrid physiology-data modeling, and staged experimental validation to achieve coordinated regulation of pilot physiological status, cockpit environment, and oxygen-supply equipment.
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Key words:
- oxygen systems /
- life support systems /
- intelligent control /
- fighter aircraft /
- man machine systems /
- pilots
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表 1 综合呼吸指数状态描述
Table 1. Integrated pulmonary index status descriptors
综合呼吸指数 人体状态 10 正常 8~9 在正常范围内 7 临近正常范围,需要注意 5~6 需要注意,或许需要干预 3~4 需要干预 1~2 需要马上干预 心血管系统模型 概述 适用情况 局限 三维模型[62-63] 考虑血管三维几何结构与力学性能,血液被视为非牛顿、不可压缩的稳定层流流体 研究血管几何形状对血流动力学的影响 高计算成本,空间尺度<1m 二维模型[64-65] 利用圆柱几何特性简化血管模型,将血管视为二维管道 研究管道流径向流动参数变化 较高计算成本,难以扩展到整个血管系统 一维模型[64,66] 血管模型只依赖于轴向坐标,将血管等效为一维管道 研究血管系统中波传播现象的理想工具 没有摆脱空间依赖性,不适用于对血管系统的整体分析 集中参数模型[67-71] 基于血管流体网络和电路网络间的相似性建立,血管系统可简化为集中参数模型 模拟更大范围的血管系统行为,方便考虑自我调节、代谢动力学,运算成本较低 不能反映血管三维流动细节,选参和调参困难 跨尺度耦合模型[72-77] 利用不同模型各自特点分别仿真循环系统的不同部分 利用集中参数模型为局部血管模型提供合理的边界条件 耦合交界面的处理 -
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