Gas alarm
A technology for alarms and gases, applied in alarms, instruments, etc., can solve problems such as failure to meet multi-node, large-scale detection requirements, system instability, and small system node capacity, and achieve improved stability and anti-interference Good, the effect of reducing the line length
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[0023] Such as figure 1 The shown gas alarm includes a detector module 1 for collecting the concentration information of combustible gas at the site to be measured and performing analog-to-digital conversion on the concentration information, for receiving the output signal of the detector module 1 and passing the relay group 2 The main controller 5 that controls the pipeline valve 3 and the fan valve 4 and the power supply module 12 that supplies power to each power unit in the system, the detector module 1 communicates with the input terminal of the main controller 5 through the CAN bus module 6 connected, the relay group 2 includes a relay one 2-1 and a relay two 2-2 all connected with the main controller 5, the relay one 2-1 is connected with the pipeline valve 3, and the relay two 2-2 Connected with the fan valve 4, the input terminal of the main controller 5 is connected with a key input module 7, and the output terminal of the main controller 5 is connected with a displa...
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