Kate
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Kate's Discussions

System Identification of quadrotor

Started Jan 30 0 Replies

Hello,Has anyone used the system identification toolbox to model a quadcopter? I would like to generate a model using system identification, either using black box modeling or grey box modeling. I…Continue

Data sheet of the motor of 2830/850kv motor?

Started Jan 2 0 Replies

Hello,Does anyone have the datasheet of the 850Kv motor?Continue

Designing a quadcopter from the scratch.

Started this discussion. Last reply by Dennis Hestbech Dec 14, 2012. 3 Replies

Does anyone know how to validate a quad which you have designed it from the scratch.(Starting from all the math equations and writing the algorithms) If yes can someone please help me?Continue

Collision avoidance of quadcopters

Started this discussion. Last reply by Kate Feb 25. 2 Replies

Hello,I would like to know if anyone has worked with this subject "collision avoidance". If yes, can you please help me with a few things.-> What kind of sensors can be used?->Any collision…Continue

 

Kate's Page

Latest Activity

Kate replied to Luke Horwood's discussion Arducopter HIL Mode problems. in the group ArduCopter User Group
"Asa Holly, Are you having problems with flight gear?? I need a little more information to help you :)"
Mar 25
Kate replied to Kate's discussion Collision avoidance of quadcopters
"Hey Skip, Thank you so much for the reply.  Yes, I have been going through the MAEP, and I really wanna build one. Just waiting to buy the instruments.  I was planning to take it one step at a time. First, build this ground based bot and…"
Feb 25
Skip Frombach replied to Kate's discussion Collision avoidance of quadcopters
"I am currently investigating this and have a somewhat workable solution although I have not adapted it into current code.  Here is what I tried and it seems to work.  If you look on the internet you will find a discussion of a small ground…"
Feb 25
Jan van Hulzen replied to Kate's discussion System Identification of quadrotor in the group ArduCopter User Group
"Kate, the best thing to do is open the log file in a text editor like notepad (TextEdit on mac) your log might contain lines like this: 52.9620361328,4.7732505798,-4.6900000572 GSP:1.18 COG:0.0000000000 SAT:0 FIX:1…"
Feb 6
Kate replied to Kate's discussion System Identification of quadrotor in the group ArduCopter User Group
"hey Jan, Right now the other problem I am facing is the data logs. The sample logs that I have from the flight are in ".log" format, and for system identification requires data which is in ".mat" , also I wasn't really able…"
Feb 5
Jan van Hulzen replied to Kate's discussion System Identification of quadrotor in the group ArduCopter User Group
"Kate, you can run the data you have now through the system identification toolbox but my guess is that the results will be questionable. Especially if you try data from a flight. the toolbox assumes a fixed sample rate and assumes that the sample…"
Feb 5
Kate replied to Luke Horwood's discussion Arducopter HIL Mode problems. in the group ArduCopter User Group
"hey.... I used APM1 so thats why.... why dont you check out the LED color for APM2."
Jan 30
Kate replied to Kate's discussion System Identification of quadrotor in the group ArduCopter User Group
"Hey Jan, Thanks for the reply. I am a little confused right now. The data logs that we will get from the non-volatile memory isn't good enough? What I was planning to do is: I am not very familiar with the System Identification toolbox. So, I…"
Jan 30
Kate replied to Kate's discussion System Identification of quadrotor in the group ArduCopter User Group
"Hey Shyam, I have seen almost all the papers related to modeling :D Thanks though. Yes, I was planning to use the HILS data for the start. I wanted to start with HILS data you can easily log and then do the system identification."
Jan 30
Shyam Balasubramanian replied to Kate's discussion System Identification of quadrotor in the group ArduCopter User Group
"Hi Jan, Do you mean to say that you want to get raw sensor data from the IMU (Like gyro, accel, etc) and get in a text file format and write it into USB stick? Would you like to do this on flight or put it into usb stick offline (like writing it…"
Jan 30
Jan van Hulzen replied to Kate's discussion System Identification of quadrotor in the group ArduCopter User Group
"Shyam, what do you mean by hardware in the loop? I am investigating means to write sensor data using a serial protocol (SPI/UART) and write it to an usb stick using a vdrive2. jan"
Jan 30
Shyam Balasubramanian replied to Kate's discussion System Identification of quadrotor in the group ArduCopter User Group
"Hi Kate, I am also interested in knowing how to model the quadcopter. Are you doing this for modelling the control system or is it something else? @Jan: Is it also possible to do the same using Hardware In Loop (HIL)? @kate: Have a look…"
Jan 30
Jan van Hulzen replied to Kate's discussion System Identification of quadrotor in the group ArduCopter User Group
"Kate, i have been investigating this issue and am currently working on an USB based flight data recorder in order to get data. The problem is that you have to identify the platform including the control system if you want to do it in flight.…"
Jan 30
Kate added a discussion to the group ArduCopter User Group
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System Identification of quadrotor

Hello,Has anyone used the system identification toolbox to model a quadcopter? I would like to generate a model using system identification, either using black box modeling or grey box modeling. I can utilize some suggestions to get started.Thank you very much! :)See More
Jan 30
9 Comments
Kate replied to Luke Horwood's discussion Arducopter HIL Mode problems. in the group ArduCopter User Group
"hey, I have had many problems with HILS too. Check if this would help. I have just made this doc."
Jan 30
Kate posted a discussion

System Identification of quadrotor

Hello,Has anyone used the system identification toolbox to model a quadcopter? I would like to generate a model using system identification, either using black box modeling or grey box modeling. I can utilize some suggestions to get started.Thank you very much! :)See More
Jan 30
0 Comments

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Comment Wall (1 comment)

At 7:56am on December 10, 2012,
DeveloperRandy said…

Kate,

     The sonar is probably a good way to go because it has a very wide beam and relatively long range (at least 4m).  Certainly it's better than trying with an IR Sensor.

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