Wednesday, May 1, 2013

9. What more do I want to do?

  1. I am programming the U.A.V. with a couple of colleagues but I want to design a small robot on my own and,
  2. Try to build a 3D model of our drone in a designing software (I think Solid Work will be good).

8. Simulation to confirm the U.A.V. telemetry

Today me and my team tried to test the setup that we had planned to perform the experiments for confirming the telemetry (mentioned in the  7th post of this blog). We built this set up to get an aerial view of the U.A.V.'s path and also to confirm the programming.

We utilized our DSPIC testing kit and two FTDIs - 
  1. One to transmit the data from the DSPIC30F4011/4012 to Happy Kill-More Ground Control Station software (by enabling telemetry in options.h file) and 
  2. Second to transmit the program data from the PIC to the X-Plane 9 (demo), which is a flight simulating software.
The video showing our setup working is below:


Since the DSPIC had to send data simultaneously to two locations, therefore it needed more power and hence consumed more voltage. 
Due to this during the simulation our U.A.V. was switching, uncontrollably, between the three modes of 1. Manual, 2. Stable and 3. Autopilot.
We concluded that this was happening as the two capacitors - each of 10 micro-farad (which you can see on the DSPIC test kit) were enable to handle the troughs in the voltage supply effectively. Hence to solve this situation we have decided to use a capacitor of 100 or 1000 micro-farad (16 or 25 volts). 

I hope that this will work and we will be able to perform our experiment soon. Wish us luck!