Wireless fire detector for early fire recognition
A fire detector and fire technology, applied in fire alarms, temperature measurement of moving fluids, instruments, etc., can solve problems such as inability to realize early fire prediction and fire source location
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[0023] (1) The fire detector is mainly composed of three parts, such as figure 1 Shown: sensor array module, signal processing module, ZigBee wireless module.
[0024] Sensor array module: such as figure 2 As shown, it is composed of multiple gas sensors such as TGS2600, TGS2610, TGS2611, TGS2620 and TGS2442 of Japan FIGRO company and National Semiconductor’s LM35 temperature sensor. Their common features are long life and stable performance. Except TGS2442, which is a CO sensor, the other four gas sensors have varying degrees of cross-sensitivity to hydrogen, gaseous hydrocarbons, and alcohols. In addition to the production of CO and CO2, the combustion of substances also has organic flammable gases. . LM35 is a precision integrated circuit temperature sensor. Their output voltage is linearly proportional to the Celsius temperature. Therefore, the LM35 is much superior to the linear temperature sensor calibrated according to the absolute temperature scale. The LM35 series senso...
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