recently DIY a new design.---Palmsize quadcopter
Gald to share with you some of my opinions.
In the control of aircraft flying, there are the following technical difficulties:
First of all, it is not only affected by various physical effects during the flight, but also very easy to be disturbed by the external environment, it is difficult to obtain the accurate performance parameters.
Secondly, the micro four rotor unmanned aerial vehicle is a system with six degrees of freedom, and only four control inputs. It has the characteristics of multi variable, nonlinear, strong coupling and interference sensitivity, which makes the design of flight control system become very difficult.
Thirdly, it is necessary to eliminate the cumulative error by using the gyro to detect the attitude of the object, and how to establish the error model and the cumulative error of the integrated navigation system is an engineering problem.
These three problems are solved successfully or not, which is the key to realize the autonomous flight control of Micro Four rotor unmanned aerial vehicle, which has very important research value.
It is worth mentioning at this point that the pcb board that i bought from a chinese pcb manufacturer--PCBGOGO, the best manufacturer that i had used ,i only cost 10$ for 10 PCS . and I was so impressed by the speed fabricate time and the lead time . recommend !
If you have other better ideas about Palmsize quadcopter ,i'd like to discuss with you.any opinion will be greatly appreciated.