Mark Arnott
• Male
• Vancouver, BC
• Blog Posts (1)
• Discussions
• Groups
• Photos
• Photo Albums
• Videos

# Mark Arnott's Page

## Latest Activity

ned commented on Mark Arnott's blog post UAV School Project
"Hi  Mark Arnott, thanks for the reply. Currently i am doing my final year project and my supervisor cant seem to help me at all.Hence, i have to do all by myself.I have very little knowledge in both programming and uav.That makes my life…"
Jan 6, 2014
"Hi Ned, The downfall of fuzzy logic is you can't mathematically find parameters from a system model like you can with linear processes and PID control loops. That said with fuzzy logic it is more intuitive. eg: flying too low and still going…"
Jan 6, 2014
ned commented on Mark Arnott's blog post UAV School Project
"Hi Mark Arnott, Currently i am doing the similar project as you on fuzzy logic in uav. However, i am facing some obstacles with fuzzy logic programming. what i am doing now is using conditonal if then P = certain values. ( eg. if…"
Jan 6, 2014
"yes, it will work"
May 15, 2011
"Sebastian Gralla, how can I make a Turnigy Plush work faster than 50Hz? Can I change the PWM period lower than 20ms and it will works?"
May 15, 2011
"I'm having the same problem... it won't change much to use a faster loop if my ESC works on 50Hz... For altitude, I would use only sonar for lower altitude and for higher altitude pressure + accel integration. You can use a lowpass filter…"
May 15, 2011
"Servos work up to 50Hz, that's correct. ESCs can work much faster, most are capable of about 1kHz, turnigy's can do faster (I heard of 4.7kHz).   control loop for altitude can run slower (about 10Hz is enough), if you have all those…"
May 15, 2011
"I have a few Q's regarding using a faster loop rate.  Don't the servos and ESC PWM only run at speeds from 20-50 Hz?  If that is the case I wouldn't really be controlling the craft faster, just doing more…"
May 15, 2011
"50Hz is too slow for a stable multirotor you have enough cpu power, go for 500Hz"
May 15, 2011
"I've written my own flight 3d simulator from first principles in C# that works quite will and have mainly used that to built up my initial algorithms. I then do some tuning with the craft tethered.  As you can see, I need to…"
May 14, 2011
"Great! What kind of ESC are you using?"
May 14, 2011
"Are you using Simulink for your control design, or writing C code by hand? I was wondering if you know the kind of overhead you get in that case, e.g. what's your CPU usage so to speak."
May 14, 2011
"maybe you should work on your attitude control algorythm first before you go for altitude hold it's very unstable how fast is you control loop?   check out some videos of arducopter, it has only one 16Mhz cpu for flight AND navigation"
May 14, 2011
"You're right.   A "floating" camera mount would have been easier, but it's a degree."
May 13, 2011
Mark Arnott posted a blog post

### UAV School Project

Here is a quick vid of my final project I'm building in electrical engineering. It's a tricopter UAV with thrust vectoring. As of now I have implemented roll, pitch stabilization, yaw and height are controlled by the aircraft. I just control the x and y movement.All the control algorithms use fuzzy logic. Why? To be different... and to overcome a lot of the limitations associated with PID's and nonlinear processes.The craft has 3 motors, and 5 servos. The front two motors can pitch forward and…See More
May 13, 2011

## Profile Information

4th year Electrical Engineering student
Build/building a tricopter for my final project.
Hometown:
Vancouver Island

## Mark Arnott's Blog

### UAV School Project

Posted on May 13, 2011 at 8:30pm

Here is a quick vid of my final project I'm building in electrical engineering. It's a tricopter UAV with thrust vectoring. As of now I have implemented roll, pitch stabilization, yaw and height are controlled by the aircraft. I just control the x and y movement.

All the control algorithms use fuzzy logic. Why? To be different... and to overcome…

Continue

Join DIY Drones

1

2

3

4

5

6

7

8

9

10

## Groups

29 members

29 members

149 members

437 members

• ### IRIS

611 members

Season Two of the Trust Time Trial (T3) Contest
A list of all T3 contests is here. The current round, the Drone Delivery Challenge, is here

© 2015   Created by Chris Anderson.