Re: [Paparazzi-devel] Switch to Navmode

[Noah Martin]

Hi,

You need use 3D/2D position sensor in navigation mode because horizontal guidance need the position measurement for controlling.
But, you can use the optitrack gps subsytem in indoor navigation.
see please https://github.com/paparazzi/paparazzi/commit/c81c8745eb4d449341d9c130fa8580810afb9e78

Good idea for using sonar distance in flight plan exceptions.

remarck: If you define in your airframe the sonar module, I think, you must disable sonar fusion in vertical filter.

   

Good luck.

Noah.

2014-01-29 7:16 GMT+01:00 Kadir ÇİMENCİ <address@hidden>:

Hi David ,
Is it really possible to get location with cm resolution indoor, do you know about the technology behind this.? I hear that some companies are developing accelerometer based INS systems to work with Wifi signals and their reflections by knowing the location of the sources but i don't know a practical application about this.

2014-01-28 David Conger <address@hidden>

I hear that retail stores can now know the location of an iPhone
(maybe also Android) within a few cm inside a store, even a mall.
Maybe this technology could be used by indoor flying robotics?

On Tue, Jan 28, 2014 at 10:58 AM,  <address@hidden> wrote:

> Hello people,
> I would like to fly a quadcopter indoor autonomously. The quadrocopter is
> using sonar sensors for collision avoidance, furthermore the gps is not
> avilable. My attention is to use the sonar sensors for collision avoidance
> by using the </exceptions> represented inside of the flight plan.
> Unfortunatly I can not switch from ATT mode to Nav mode "Auto2" and i am
> wondering if it has something to do with the fact that there is no gps
> signal availabe.
>
> It doesnt work with GCS and remote control.  I can switch to any other mode
> but not this one.....any ideas ?
> Regards,
> JS
>

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