What about following one Multirotor using another one? If both have Bluetooth and GPS on board, it should be possible.
Any Ideas?
*No, I don't want to strap my Smartphone onto my Multirotor
Re: Multirotor chasing another Multirotor automatically?
Posted: Mon Aug 05, 2013 8:09 pm
by ReadError
Cool, now do it without an array of motion tracking cameras.
Re: Multirotor chasing another Multirotor automatically?
Posted: Mon Aug 05, 2013 8:12 pm
by copterrichie
Re: Multirotor chasing another Multirotor automatically?
Posted: Mon Aug 05, 2013 8:20 pm
by ReadError
Nice, even more motion tracking cameras.
Re: Multirotor chasing another Multirotor automatically?
Posted: Mon Aug 05, 2013 8:24 pm
by copterrichie
GPS would work just fine in a large open field.
Re: Multirotor chasing another Multirotor automatically?
Posted: Mon Aug 05, 2013 8:26 pm
by gektor
I was filming my Friend's new MultiRotor Air to Air without FPV. We were wondering, how we could assist it using GPS and Bluetooth.
Unfortunately, I'm not as experienced in Coding as it would be necessary in order to implement such things.
Well, it's just an Idea
By the way, this functionality, once implemented, could be used to build a simple tracker, which may be cheaper and much smaller than a Smartphone. This would make Filming of the moving objects nice and easy.
BTW: Having Altitude Sensor and a Mag is also useful for the Chasing Function. As well as I know, Smartphones usually do not have Baro.
Re: Multirotor chasing another Multirotor automatically?
Posted: Mon Aug 05, 2013 8:50 pm
by copterrichie
Actually, much of the coding is already done. What is required is a way to dynamically update the RTH waypoint.
Re: Multirotor chasing another Multirotor automatically?
Posted: Mon Aug 05, 2013 9:21 pm
by gektor
Good Idea, copterrichie! The Home-Point implementation is already stable and works good.
As you can see in the Video in my first post, even more Coding is already done. If the Copter can follow a Smartphone (without landing on it ), it can follow another Copter.
In my opinion, the only missing Part is the Communication between two Copters. No?
Re: Multirotor chasing another Multirotor automatically?
Posted: Mon Aug 05, 2013 9:47 pm
by copterrichie
gektor wrote:In my opinion, the only missing Part is the Communication between two Copters. No?
In my opinion, this is correct however I don't believe an AT328 would have the memory to do this, it would have to be a Mega2560 at minimum. However, I do see the I2C-GPS-NAV being modified to handle this application. There are many antenna tracking software out there that could be adapted that uses the audio line on a video system however Bluetooth Class 1 (not class 2) would most likely be the easiest to implement in my opinion. That way, there could be two way communications.
Re: Multirotor chasing another Multirotor automatically?
Posted: Tue Aug 06, 2013 12:10 am
by Sebbi
The P328 should be able to handle that, after all the whole serial protocol is already compiled in ... you "just" need to connect both copters via a serial bluetooth bridge and modify serial.cpp in a way so it periodically sends out the correct MSP message. This waypoint set message should probably not contain the position of the copter itself, but a point "near" the current GPS position in a pre defined direction.
Re: Multirotor chasing another Multirotor automatically?
Posted: Tue Aug 06, 2013 7:56 pm
by gektor
The Task of Chasing another Multirotor is quite unusual, but chasing any moving Object would be great. Some standard MWC All in One Board, GPS and Bluetooth could make a cheap and sophisticated Tracker.
Re: Multirotor chasing another Multirotor automatically?
Posted: Tue Aug 06, 2013 8:05 pm
by copterrichie
gektor wrote:The Task of Chasing another Multirotor is quite unusual, but chasing any moving Object would be great. Some standard MWC All in One Board, GPS and Bluetooth could makes a cheap and sophisticated Tracker.
Just a wild thought, combine this tracker with the work being done to extend the flight time, and we have a commercial grade product.
Re: Multirotor chasing another Multirotor automatically? Tra
Posted: Tue Aug 06, 2013 9:40 pm
by Hamburger
Exactly. I will keep that idea in mind when I will be digging into the rth stuff. I have found that sometimes its initial value is less good than what could be had once .more sats are used. So I want to have the rth pos to be user re-settable.
), it can follow another Copter. 