The invention relates to the technical field of unmanned aerial vehicle sensors, and discloses an airflow sensor suitable for small and medium-sized fixed-wing unmanned aerial vehicles, which comprises a weather vane, and a Hall angle sensor is arranged below the weather vane; a single-chip microcomputer module matched with the Hall angle sensor is arranged on one side of the Hall angle sensor. The single-chip microcomputer module collects and processes data of the Hall angle sensor and processes collected and processed signals through a Kalman filtering algorithm, a threshold value is set in the Kalman filtering algorithm, and bad values are filtered out; according to the scheme, the Hall angle sensor with relatively high reliability is used, so that the size and the weight of the unmanned aerial vehicle control system can be reduced, and the unmanned aerial vehicle control system is also very sensitive to the change of airflow in a relatively severe environment and at a relatively low air speed and has relatively high precision; according to the invention, the single-chip microcomputer is combined with the angle sensor, so that the precision and stability of sensor signals are ensured.
本发明涉及无人机传感器技术领域,且公开了适用于中小型固定翼无人机的气流传感器,包括风标,所述风标的下方设置有霍尔角度传感器;所述霍尔角度传感器的一侧设置有与之配合的单片机模块;所述单片机模块采集、处理霍尔角度传感器的数据,并将采集、处理后信号,通过卡尔曼滤波算法进行处理,所述卡尔曼滤波算法中设置阈值,滤除坏值;处理后的角度数据通过串口发送,作为无人机控制器的角度数据,本方案,使用具有较高的可靠性的霍尔角度传感器能够减小本发明的尺寸和重量,在较为恶劣的环境、以及在较低空速下也对气流的变化十分敏感,具有较高的精度;本发明将单片机与角度传感器结合,保证了传感器信号的精度和稳定性。
Airflow sensor suitable for small and medium-sized fixed-wing unmanned aerial vehicle
适用于中小型固定翼无人机的气流传感器
2023-06-23
Patent
Electronic Resource
Chinese
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