Radio-sondage system based on dual-redundancy fixed wing unmanned aerial vehicle

Abstract

The invention discloses a radio-sondage system based on a dual-redundancy fixed wing unmanned aerial vehicle. The system comprises the fixed wing unmanned aerial vehicle, a radiosonde and an earth station, wherein the fixed wing unmanned aerial vehicle drives the radiosonde to rise to the sky, and the radiosonde transmits acquired data to the earth station for processing. According to the invention, a dual-redundancy sensor is employed, the system comprises a high-precision mounted MTI, a low-precision onboard combined sensor, a high-precision differential GPS and a low-precision barometer, and the reliability and the safety of the fixed wing unmanned aerial vehicle are improved; and the earth station and a wireless data transmission module are added, and the course of automatic flight can be modified at any time. The system is applied to development of round-the-clock high-resolution atmosphere boundary-layer detection, and while ensuring completeness of detection data, can also effectively reduce manpower cost, thereby being a feasible replacement scheme of a conventional common atmosphere boundary-layer detection means.

Description

Technical field [0001] The invention relates to a radiosonde system based on a dual redundancy fixed-wing unmanned aerial vehicle, belonging to the technical field of meteorological detection. Background technique [0002] The atmospheric boundary layer is the main layer of human activities and various ecological environments. It is the gas layer through which momentum, heat and material properties exchange between the earth's surface and the free atmosphere. Major meteorological experiments at home and abroad mostly regard the study of the atmospheric boundary layer as one of the core scientific contents. The meteorological elements detected generally include temperature, humidity, pressure, wind speed, and wind direction. [0003] Atmospheric boundary layer detection can be carried out by relying on existing high-altitude observation stations. The upper air meteorological station is a place where the meteorological department implements upper air meteorological observations on l...

AI Technical Summary

Problems solved by technology

The attitude sensor and the altitude sensor are the core parts of the automatic flight of the UAV. If there is a problem with the two modules, the UAV will not be able to fly according to the established trajectory. Errors in the altitude information will cause errors in the altitude control and cause the UAV to stall. Reduced reliability and security