Multi-control fire alarm switch
By employing multi-sensor redundancy design, power backup, and optocoupler-isolated communication, the problems of signal interference and sensor failure in multi-control fire alarm switches were solved, thereby achieving accuracy and reliability of fire alarms and ensuring timely response to multi-point linkage alarms.
CN224457451UActive Publication Date: 2026-07-03SICHUAN FU SHI XIN AN FIRE ENG CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN FU SHI XIN AN FIRE ENG CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-07-03
Smart Images
Figure CN224457451U_ABST
Abstract
This utility model relates to the field of fire alarm technology, specifically to a multi-control fire alarm switch, including a main controller, a multi-point linkage module, a communication module, and a remote monitoring center. The multi-point linkage module consists of multiple alarm switch nodes, each of which is an independent alarm unit, including a signal acquisition module, a signal processing module, a power management module, an optocoupler-isolated communication module, and an alarm module. The output of the signal acquisition module is electrically connected to the input of the signal processing module, and the output of the signal processing module is electrically connected to the input of the optocoupler-isolated communication module. The output of the optocoupler-isolated communication module is connected to the input of the main controller. The main controller connects and communicates with the multiple alarm switch nodes through the optocoupler-isolated communication module. This utility model solves the technical problems of signal interference, unstable power supply, communication interference, and sensor failure existing in the prior art.
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