Sensor dual-redundancy flight control computer system suitable for small civilian unmanned aerial vehicle

Abstract

The invention provides a sensor dual-redundancy flight control computer system suitable for a small civilian unmanned aerial vehicle, relates to the field of unmanned aerial vehicle avionics, and solves the problems of poor universality, complex design, the large volume and the large weight which exist in existing flight control computer redundancy design. The sensor dual-redundancy flight control computer system comprises a flight control module, a redundancy sensor module, an expansion interface module, an executing mechanism module and a power supply module; and the flight control module and the redundancy sensor module are respectively provided with an independent processor, accelerometers, gyros, magnetometers, barometric altimeters and other sensors are integrated through external interfaces of the processors, the two modules perform parallel working in each period through adoption of a synchronization mode, and obtained original sensor data are processed by utilizing the processors of the flight control module and the redundancy sensor module. The flight control processor analyzes sensor information at each period and sends the diagnosis information to the redundancy data processor, and, if the sensors fail, redundancy sensor information sent by the redundancy data processor is utilized to perform resolving of navigation and control. The sensor dual-redundancy flight control computer system is convenient to implement, low in cost and high in reliability.

Description

technical field [0001] The invention relates to the technical field of drone avionics, in particular to a sensor dual-redundancy flight control computer system suitable for small civilian drones. Background technique [0002] In order to complete the flight mission, the drone needs to carry pressure, vibration and position sensors, etc. These sensors constitute the sensor system of the drone, which are used to accurately measure the motion or state parameters of the drone, and feed back the measured information For UAV navigation, control and ground measurement and control systems. At present, the focus of product design of small civilian drones is smaller size and lower cost. Generally, low-cost sensors are used. Such sensors have a high probability of failure in harsh external environments. Once a failure occurs, it will directly Threatening the flight safety of UAVs, how to ensure the reliability of UAVs under the premise of using low-cost sensors has become a key issue ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of poor versatility, complex design, and large volume and weight in existing flight control computer redundancy designs, the present invention provides a sensor dual-redundancy flight control computer system suitable for small civil unmanned aerial vehicles

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