System Design of Wireless Meteorological Element Acquisition Based on Loongson 2K1000

At present, meteorological stations in China mainly use stm3, cc520 and other main control chips. Loongson 2K1000 is a dual-core processor chip launched by loongson technology with rich functions and suitable for various data acquisition and data communication. It adopts the MIPS framework based on RISC instruction set, which has certain advantages in cost control and processor speed. In addition, with the continuous progress of people's research in the field of meteorology, the mode of wired transmission has gradually been replaced. However, in China, there are still many meteorological stations that use wired transmission to collect various meteorological elements, which leads to the installation and expansion of meteorological stations very inconvenient. Therefore, this design proposes a wireless meteorological element acquisition system based on the loongson 2k1000 as a hardware platform. The data acquisition front-end uses the loongson 2K1000 as master, and is equipped with sensors such as temperature and humidity sensors and air pressure sensors to collect the meteorological elements data. Through a serial port to send and receive data, LORA wireless module to solve the limitation of the cable transmission of equipment. The acquisition terminal software selects Qt with cross-platform capability, and designs the upper computer which can display the graph of the collected data in real time.