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midnitc
08-24-2005, 09:12 PM
Iam planning to do a project on control of robotic rover by wireless.
1. A rover controlled by 2 seperate motors will be desgned & fabricated.
2. A digital video camera(21x optical zoom) will be fixed on the rover whose orientation will inturn be controlled by 2 seperate motors.
3. A laptop will be fixed on the rover & will act as a slave recieving & transmitting data from the camera or literally streaming the video from the rover to a main PC server via the existing Wireless LAN of our campus.
4.The same laptop will analyse the video from the server frame by frame & image processing will be done for speed & inertia control of the system primarily. Further the same analysis will be used to align the camera in real time with a driver light source which will be arbitrarily lighted anywhere around the robo by a user.
5. Finally we also plan to used a second camera to calaculate the depth of the source & if possible reconstruct a 3d Image of the room(Have'nt yet finalized on this).

This is the brief of our project idea to be completed in one year.
So there is a lot of hardware implementation for developing the control system for the project with inputs like
1. The video streamed from camera to be given to computer.
2. For creating the 3d image we might need to use a laser or sonar sensor & hence input from that.
There is also interfacing & software driver issues like
1.Image processing
2.video streamign & wireless programming

Can you help in regards to any programming aspect of this topic or kindly guide us to some valuable links or help sites/forums.
Also be open about the feasibility of the project specially about using two cameras(Can it done using a single one? or can we use a laser or sonar sensor?).

Any help will be highly appreciated & thanks in advance.
Midhun

subot_robot
08-25-2005, 02:52 PM
As far as the chasis or the mechanical platform is concerned, u will have to use dc motor powerful enough to take the load of robot body + battery + laptop + misc and should be able to run for decent time (atleast 15mins) in one charge of battery. It seems that u r using skid steer driving (4 wheel) or differential drive (3 wheel) as u are using 2 seperate dc motor. Please let me know the configuration of that. Your robot should be big enough to hold the laptop, battery, and other accessories.
Regarding the vision, I think one webcamera + sonar or laser range finder would suffice for 3-D map building. laser would be more accurate and with sonar is not that easy to generate 3D image as the sonar has beamwidth of 30 degrees.
I think it is very difficult to analyse depth using 2 cameras. I am not sure. Comments are welcome. Your project is really a good one. Using energy efficient powerful dc motor + low weight high current battery can be a difficult issue (from my exp) .
All the best

Subot.robot