stibaer
Germany
Asked
— Edited
Hi there,
what would be the best solution if you want your robot to recognice and follow you?
Radio? A keyed bluetoothsignal?
I want to build a robot that follows me in a certain distance.
Maybe something similar to a wall-e, so I can put my shoppings into him^^
Im happy for any good suggestion and even more for a complete robokit
Alan
Alan
problem is, that you cant use sound or visual sensors primary,
if you want to build a stalking shoppingbasket ^^
Its too vulnerable to disturbances.
I cant imagine anything working, but some kind of radiowaves to let the robot know, in which direction and how far away you are.
Anything else can be disturbed too easy. Can it not?
Or can the EZ-camera recognice your back/side/face well enough?
I dont know. I dotn have any experience in using cameras on robots yet.
Sound/camera/visual signs can be used additional of course to improve it further.
I think the easiest solution could be, if you carry a transmitter on your body, which sends out an encoded signal, for example a bluetooth signal, so that the robot can use his 3 antennas, to measure the distance and angle to you and adapt it.
Maybe even an app for smartphones could be written, so that the bluetooth of the smartphone can be used for that.
That would be the most comfortable solution.
To differ bluetoothsignals it should have an individual key.
Maybe someone has such a solution at hand or there is even a ready solution on the market?
That really can be used meanwhile
You also could shave a glyph on the back of your head and the sides.
The face can already be recogniced
How long you think it will take to
figur the whole transmitter/bluetooth/wifi thingy out?
Can you recommend some good infomaterial to me?
Here in Germany there are nearly no good books etc. about that stuff available. Probably to protect us from ourselves...
I need input. Inpuuuuut! ^^
Btw. Can 2 ez-cameras be used simultaneously to be more efficient?
Is there maybe even support of 3d visuals?
Alan
Blue tooth or any RFID solution could certainly detect presence, but tracking is going to be very tough right now. You could use something like XaP automation protocol to do bluetooth presence detection but I have not yet seen a board that will give you a line of bearing (LOB) which requires Radio Direction finding (I have not looked alot however). RDF is pretty common on lots of hobby type boards for some lower frequencies like VHF band stuff, but I have not yet seen it for wifi and Bluetooth yet. There are some solutions probably based on signal strength on some of the wifi utilities, but I don't think it is that accurate. Maybe someone has seen something.....Would love to avoid shaving my head. I might consider a tattoo however (jk).
v/r
Kevin
Granted, the robot won't find you in another room, but line-of-sight following was pretty good for a toy robot. Don't know if this would be possible with the EZ-B, but since we can already use IR ping sensors with the EZ-B might it also be possible to use IR detectors? *confused*
Alan
As for ir tracking with blue, it'll work. I'll do a tutorial video for you
Alan
one unit mounted on robot ,interface to Ez b ,connect batt to other unit hold in your hand or strap to you body and it will follow you or do what you want with a little programming.
http://www.pololu.com/catalog/product/701
Pat
Would be the most efficient solution, since its the only solution, where you dont need a direct line of sight.
A Tracking transmitter broadcasting a radio signal which can be detected by a directional antenna (typically a Radio Direction Finder.) could be carried at your body.
By rotating the antenna on the robot, one can determine the direction the signal lies in and of course whatever it may be attached to. "
Also the strenght of the signal can be measured -> you have all needed data to let the robot drive in a certain distance and angle to you.
Source of information:
http://en.wikipedia.org/wiki/Tracking_transmitter
Alan
Alan, do you just use the 'RED' color tracking on ARC for that?
v/r
Kevin