A power bus based gas alarm detection system

CN121811608BActive Publication Date: 2026-06-23CHENGDU XINHAOSI ELECTRONICS DETECTING TECH CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHENGDU XINHAOSI ELECTRONICS DETECTING TECH CO LTD
Filing Date
2026-03-12
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing gas alarm detection systems, due to their four-wire architecture, suffer from high engineering complexity, difficult construction, strict topology restrictions, weak anti-interference capabilities, and low communication efficiency, making it difficult to meet the flexibility and real-time requirements of complex industrial and commercial sites.

Method used

It adopts a two-wire power bus architecture, combined with a full-bridge rectifier module to realize the multiplexing of power supply and communication, and supports multiple topologies through polarity adaptive interface design and a highly robust communication mechanism, thereby enhancing the system's installation efficiency, topology adaptability and anti-interference capability.

Benefits of technology

It significantly reduces installation complexity and cost, improves construction reliability, enhances system communication stability and response speed in complex environments, and meets the rapid response requirements of gas safety scenarios.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121811608B_ABST
    Figure CN121811608B_ABST
Patent Text Reader

Abstract

The application discloses a kind of gas alarm detection systems based on power bus, it is related to gas detection technical field, including first cable, second cable, controller, detector and full-bridge rectifier module;The bus output end of controller is connected with the one end of first cable and the one end of second cable respectively;The other end of first cable and the other end of second cable are commonly connected with the bus interface of detector electrically;First cable and second cable form two-wire power bus;Full-bridge rectifier module is arranged at the interface of detector and controller, so that the bus interface is non-polar.The application is from gas concentration threshold to the response delay of valve action ≤80ms, the communication error rate is less than 10-9 in 30dB strong interference environment, bus supports ≥5A peak current output, can drive high-power catalytic sensor array, detector hot plug replacement operation time is reduced;Maintenance personnel do not need special tool or circuit knowledge, the risk of misoperation is reduced.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Expansion circuit of light control system bus equipment

    CN115529695A