A concealed fire optical fiber early warning method and system for an external wall fire-retardant insulation layer

By establishing a discrete graph structure and a graph connectivity search algorithm in the photovoltaic building composite facade, the heat from external photovoltaic equipment and the internal fire heat core of the flame-retardant insulation layer are decoupled, solving the problems of false alarms, missed alarms, and location distortion in the existing fiber optic fire alarm system, and realizing a high-confidence concealed fire early warning.

CN122416673APending Publication Date: 2026-07-17FUJIAN SANMING RUNXIANG NEW MATERIAL CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
FUJIAN SANMING RUNXIANG NEW MATERIAL CO LTD
Filing Date
2026-06-16
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing fiber optic fire alarm systems cannot effectively decouple externally attached heat shadows from the actual hidden fire heat core inside the fire-retardant insulation layer of photovoltaic building facades, leading to false alarms, missed alarms, and distorted alarm location.

Method used

By establishing a discrete graph structure that reflects the connectivity of the building interface, and combining projection dimensionality reduction operators and graph connectivity search algorithms, the heat from external photovoltaic equipment is decoupled from the internal fire heat core of the flame-retardant insulation layer. The graph connectivity search algorithm is then used to locate the hidden fire alarm points and output electrical alarm signals.

Benefits of technology

It improves the confidence level of early concealed fire detection, ensures that alarm signals have high confidence and accurate location basis, and reduces the probability of false alarms and missed alarms.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明公开了一种外墙阻燃保温层隐蔽火情光纤预警方法及系统,涉及光纤传感预警技术领域,通过将发热实体部件投射至外墙阻燃保温层外侧界面,建立反映建筑界面连通性且赋予长度权重的离散图结构;提取基础测温点温度排序序列的温度跃迁量最大值,结合分割有效性与空间连续性生成热异常区段集合;在离散图结构内执行图连通搜索算法,将外源热构造连通到达的测温点作为可解释部分剥离,通过集合差运算获取有效未解释区;最终依据未解释区内测温点的光纤布设里程计算里程中心值并定位报警;本发明实现了光伏贴附热影与真实隐蔽火情热核的数学解耦,有效克服多源热混叠下的误报漏报,并解决复杂立面布线导致的空间定位失真问题。
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