Air quality monitoring node based on ZigBee wireless technology
A technology for air quality and monitoring nodes, which is applied in the direction of measuring devices, signal transmission systems, instruments, etc., can solve the problems of difficult wiring, high cost, and difficult to meet data transmission, and achieve strong data communication capabilities, low power consumption, and improved The effect of system communication capabilities
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[0023] The present invention will be further described below in conjunction with the accompanying drawings.
[0024] like figure 1 As shown, the air quality monitoring node based on ZigBee wireless technology includes a power management module 1 , an air quality parameter acquisition module 2 , a microprocessor module 3 and a ZigBee wireless communication module 4 .
[0025] The power management module uses a YSD-12450 lithium battery to provide 12V power supply, and generates 3.3V and 12V voltages through the voltage conversion circuit 1-2 and voltage conversion circuit 1-3 to supply power for each module on the node. Voltage conversion circuit 1-2 is built with LM2596-12 as the core chip, and voltage conversion circuit 1-3 is built with LM2596-3.3 as the core chip.
[0026] The air quality parameter acquisition module includes temperature and humidity transmitter 2-1, air pressure transmitter 2-2, sulfur dioxide transmitter 2-3, nitric oxide transmitter 2-4, nitrogen dioxid...
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