Application Research of Computer Network Technology in Electronic Wireless Transmission

In this paper, a wireless remote communication system based on STM32 microcontroller and RS485 bus network is proposed. In the design, STM32 MCU is used as controller and WIFI module ESP8266 as wireless network access chip. Through hardware circuit design and software programming, the system realizes data upload and control command downlink transmission between sensor terminal and data center. Then this paper proposes a low power wide area Internet of Things full duplex algorithm based on antenna selection. This algorithm introduces a novel multiple-input multiple-output (MIMO) antenna selection technology into LoRa technology of low power wide area Internet of Things. The wireless module is connected with the host computer through the communication protocol to realize the remote communication of data. Finally, the feasibility of the proposed system design is verified by practical test.