Wireless network node based on radio frequency transceiver

The utility model discloses a wireless network node based on a radio frequency transceiver. Collection and wireless transmission of data can be carried out; and a wireless networking function is automatically achieved. A power supply management module is used for providing a stable power supply to a microprocessor and a sensor; an input end of the power supply management module is connected with the power supply; the output end of the power supply management module is connected with a sensor; the sensor and an oscillator are connected with a modulator-demodulator; the modulator-demodulator is connected with the microprocessor; a JTAG, SPI interface, a crystal oscillator, a FLASH, a FT232BM and a silicon serial number all are connected with the microprocessor; the JTAG is used as a simulation debugging interface of the microcomputer; the SPI interface is used as an expansion interface of the microprocessor; the crystal oscillator is used for providing a clock signal for the microprocessor; an FT232BM is a single chip USB-to-asynchronous serial port conversion chip; the silicon serial number is used for providing a sole electronic identity label for the node; and a radio frequency transmitter, an AM modulating-demodulating circuit, a power amplifier, a duplexer and an antenna form a transmitting and receiving module of signals.