一种火炸药热失控探测方法及信号处理算法

By employing a signal processing algorithm that combines composite band filtering and multi-dimensional feature fusion, the problems of slow response speed, high false alarm rate, and weak anti-interference ability in the detection of fires involving explosives have been solved. This algorithm enables rapid and accurate identification of flames and millisecond-level response, ensuring efficient prevention and control of fires involving explosives.

CN121207906BActive Publication Date: 2026-07-17HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
Filing Date
2025-09-24
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing fire detection technologies for explosives have slow response speeds, high false alarm rates, and weak anti-interference capabilities, making it difficult to effectively identify the NOx and CHx Oy spectra generated by the combustion of nitrogen-containing solid propellants, resulting in significant hidden dangers in fire prevention and control.

Method used

By employing signal processing algorithms that combine composite band screening, Kalman filtering, dynamic background modeling, time-frequency domain analysis, and multi-dimensional feature fusion, and by selecting specific infrared absorption bands and multi-band infrared sensors, combined with Kalman filtering and dynamic background modeling, rapid identification and noise suppression of flame characteristic signals can be achieved, and time-frequency domain feature analysis can be used to improve detection accuracy.

Benefits of technology

It achieves millisecond-level fire detection, reduces false alarm rate, improves the ability to specifically identify flames, ensures rapid response and high reliability in fire and explosive fires, and protects the safety of operators.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121207906B_ABST
    Figure CN121207906B_ABST
Patent Text Reader

Abstract

一种火炸药热失控探测方法及信号处理算法,方法包括:基于含氮类固体推进剂燃烧产物的分子特性,选定含氮类固体推进剂燃烧产物中氮氧化合物NOx的红外吸收峰作为主波段,以碳氢化合物的红外吸收峰作为背景波段,通过三个红外传感器同步采集目标区域光谱信号;对采集的信号依次执行卡尔曼滤波降噪、动态背景建模、火炸药特异性波谱提取、时域快速检测、频域特征分析及多维度特征融合;最终通过综合决策得分D判定,输出状态标志位Trig_Flag_D,经CAN总线将信号传输至控制主机,进而控制灭火装置和声光报警系统动作。算法集成短时能量检测、基频分析及谐波能量比判定,结合高性能硬件与实时操作系统,实现毫秒级火炸药火焰检测,具有高灵敏度、低误报率及快速响应特性,可有效保障火炸药操作人员的安全。
Need to check novelty before this filing date? Find Prior Art