Hexcrawler Beacons

sumeet

working on two hexcralwers,
made a coding using tranceiver instaled on each hexcrawler, so that they can send command to each other, when each one receive the command they perform as per the command.

how can we make two hexcrawlers work in collabration to do certain things.

Is it possible to make one hexcrawler calling other, that is one hexcrawler sending signal to the other hexcrawler to reach him, then the second one should able to find him (say in a room) and reach the place where the first one is standing.

Be it hexcrawler or Boe-Bot how to implement this funda.

Please suggest..............

Kevin B Slater

The simplest form would be GPS, one ‘bot would signal to the other to other to come to it.· The originating ‘bot would send the GPS coordinates to the second one and then the second one would navigate to the calling ‘bot.· Another option would be to send the signal to find, and then start an IR beacon.· The receiving ‘bot would then start searching for the calling ‘bot, "looking" for the IR beacon.
· The first solution would be the most efficient but the most expensive, as you would have to have GPS units on each ‘bot.· The second would be easier to implement but not as efficient as the second ‘bot would have to search for the first one's IR beacon signal.

Just some food for thought.

Kevin

sumeet

Thanks Kavin,

Please elaborate on the IR beacons.
How to do with basic stamps.

How the hexcrawler will find which path to go to reach to the caller.

Kevin B Slater

Basically the source ‘bot will “transmit” a signal from an IR LED {http://www.parallax.com/detail.asp?product_id=350-00017}.· The receiving ‘bot would “look” for this signal with an IR receiver {http://www.parallax.com/detail.asp?product_id=350-00014}, like the ones used in a TV that look for a remote control signal.· Once the receiving ‘bot sees the signal it navigates toward that signal.· The actual navigation algorithm that you use, is up to you.

A quick Google search found these two products.· Sorry Parallax, I don’t think you have anything like this so I thought it would be OK to post these links.

········· http://www.pololu.com/products/pololu/0001/

·· ······ http://www.robotmaker.co.uk/Index_IRCF.htm

·· It is ashamed that the Pololu product is out of production, this is exactly what you need.· If you download the manual for the Pololu product, it has a schematic on how the IR transmitters and receivers are connected.· This product uses a PIC chip but the stamp could easily be substituted.· You would need to come up with the programming to do this though.
· Additional searching found this excellent article on an IR beacon.

····· http://www.geocities.com/SiliconValley/7628/notes.html

· Try using “IR robot beacon” in your favorite search engine and you should find some usefull information.

Kevin

sumeet

Thanks Kavin for your information

U gotta nice way of explaining things.

I'll let you know my future development as per your suggestions.