UAV flight control parameter update system

Abstract

The invention discloses a flight control system which comprises a nonvolatile storing unit that is used for storing a flight control parameter of an unmanned aerial vehicle; a parameter updating unit which comprises a first buffer memory, a second buffer memory and a read-and-write control unit, when the system is electrified, the read-and-write control unit reads the flight control parameter from the nonvolatile storing unit, stores the flight control parameter into the first buffer memory and copies the flight control parameter to the second buffer memory; and a communication interface which is used for communication with a ground station, wherein when the ground station writes an updating parameter into the flight control system, the updating parameter is written into the second buffer memory through the communication interface unit, thereby updating the parameter value in the first buffer memory and the nonvolatile storing unit. The unmanned aerial vehicle flight control parameter updating system can effectively coordinate read-and-write speed of a parameter storing unit and response speed of a flight control system, thereby ensuring in-time acquisition and modification of flight control system parameters by a ground station so that more reasonable architecture of the unmanned aerial vehicle flight control system is realized.

Description

technical field [0001] The invention relates to the technical field of UAV flight control, in particular to a UAV flight control parameter update system. Background technique [0002] The UAV flight control system is a typical embedded system, including embedded processors, memory chips, and many peripherals and sensor units. With the advancement of technology, the processing performance of embedded processors has been greatly improved. Taking typical STM32f4 series chips as an example, the CPU (Central Processing Unit, central processing unit) frequency has exceeded 100MHz. The memory chip includes non-volatile media for accessing parameters in the flight control system. [0003] Among them, the parameter system plays a vital role in the UAV flight control system, and the parameters that play a decisive role in flight control cannot be lost due to system power failure. The parameter system reads the parameters from the non-volatile storage medium, and at the same time cha...

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Problems solved by technology

[0004] However, the reading and writing speed of the non-volatile storage medium in the related art is relatively slow, and the time is basically at the millisecond level, which is equivalent to the order of magnitude of the attitude control cycle

If the parameter system design is unreasonable, the task of reading and writing parameters will affect other more important tasks in the flight control system, such as attitude calculation, attitude control, etc., and cannot respond within the specified time, resulting in serious safety hazards and reducing the flight control system. Human-Machine Safety and Reliability

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