A gas leakage alarm method and system based on a self-healing network

By constructing a self-healing network for parallel multi-path transmission and deduplication, the reliability and rapid response issues of gas leak alarms in underground utility tunnels were resolved, achieving efficient and reliable gas leak monitoring in complex environments.

CN121661785BActive Publication Date: 2026-06-02NORTH CHINA UNIVERSITY OF TECHNOLOGY
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NORTH CHINA UNIVERSITY OF TECHNOLOGY
Filing Date
2025-10-27
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing wireless sensor networks in underground utility tunnels face severe signal attenuation, multipath effects, and significant external interference, leading to a decline in communication quality. They struggle to achieve rapid response with low power consumption and low duty cycle, as well as high-reliability gas leak alarms. Furthermore, they lack self-healing and fault-tolerant mechanisms, making them prone to monitoring blind spots due to node or link failures.

Method used

A self-healing network consisting of terminal nodes, routing nodes, and aggregation nodes is constructed. Alarm frame copies are transmitted in parallel multipaths, deduplication is performed by routing nodes, and a weighted scoring mechanism is used for parent node and channel switching. Combined with a deadline-aware retransmission strategy and congestion control, reliable transmission of alarm information is ensured.

Benefits of technology

It significantly improves the reliability and resilience of gas leak alarms, shortens response time, enhances network robustness and adaptability, ensures the timeliness and reliability of alarm information, and enables automatic and rapid self-repair in complex environments.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121661785B_ABST
    Figure CN121661785B_ABST
Patent Text Reader

Abstract

The application discloses a gas leakage alarm method and system based on a self-healing network, and the method comprises the following steps: constructing a self-healing network composed of terminal nodes, routing nodes and sink nodes in an underground pipe gallery; registering at least K routing nodes as parent nodes for each terminal node, wherein K>=2 and K is an integer; constructing an alarm frame when any terminal node detects a gas leakage event; transmitting copies of the alarm frame carrying different path labels to corresponding routing nodes in a parallel multi-path mode by the terminal node; performing deduplication processing on the received alarm frame copies by the routing node, and sending the deduplicated alarm frame copies to the sink node; and sending an end-to-end confirmation frame to the terminal node based on the received alarm frame copies by the sink node. By using the scheme, network resource waste and redundant information processing of the backend system are avoided, a reliable closed-loop communication is constructed, and the successful delivery and integrity of the alarm information are ensured.
Need to check novelty before this filing date? Find Prior Art