Development and implementation of a power wireless private network communication terminal based on domestic microcontroller

This paper introduces a robust power wireless private network communication terminal, engineered with the domestic GD32 microcontroller, which is designed to thrive in the challenging conditions of the power sector, particularly for applications centered on new energy sources. The terminal integrates six core modules: an 8kV surge-protected power input module, a supercapacitor power management module, an RS-485 communication isolation interface module, a domestic GD32 digital signal processing module, a security encryption module using an encryption chip specified by the State Grid, and an LTE-230MHz wireless communication module. Its EMI protection ensures stable and reliable communication in high-stakes power business contexts. The terminal not only meets the needs of power distribution and smart building management but also adapts to emerging application scenarios such as virtual power plants and energy storage integration, ensuring secure access and communication. This terminal plays an indispensable role in building and maintaining a stable and secure power wireless private network, providing strong support for the communication infrastructure of the power industry.