Shop OBEX P1 Docs P2 Docs Learn Events
Part 2 of robot in progress — Parallax Forums

Part 2 of robot in progress

floodhoundfloodhound Posts: 45
edited 2007-07-28 08:09 in Robotics
I have another video if anyone wants to check out my progress

www.youtube.com/watch?v=mhkLgu3wBlc

Still need to modify the program and i have a new chassis in mind to allow for a bigger battery

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
My web site -- > www.floodhound.com <-- take a look if you like

Post Edited (floodhound) : 7/21/2007 6:11:26 AM GMT

Comments

  • Chris SavageChris Savage Parallax Engineering Posts: 14,406
    edited 2007-07-21 17:19
    This thread is being moved from the Completed Projects Forum to the Robotics Forum.

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    Chris Savage
    Parallax Tech Support
  • OSOKOSOK Posts: 35
    edited 2007-07-21 17:54
    Just a few questions...

    What's the purpose of the up-motion of the PING?

    Does it check for obstacles also when it's moving fwd?
  • floodhoundfloodhound Posts: 45
    edited 2007-07-21 18:14
    Well the up down is used to detect steps or the coffee table height. I can detect objects while moving, just can not get good results moving the head, detecting obstacles and moving all together. Thinking on upgrading to the propeller ic.

    I am working towards this idea of guarding my home and making rounds at night. I just put on a 110db siren and man this thing is loud, so if i can detect obstacles then i should be able to detect a person breaking into my home. Testing is slow because i am looking for a better platform to put all the electronics and gadgets i have made inside.

    This idea came to me when my home was broken into during my trip away for my birthday.

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    My web site -- > www.floodhound.com <-- take a look if you like
  • DiablodeMorteDiablodeMorte Posts: 238
    edited 2007-07-21 21:55
    You've done an awesome job. Though it is usually the hardest part of any robotics project. If you could determine your location using sometype of mapping program you could cross compare the current view of the room with what SHOULD be there and investigate any major differences. This might help you detect humans/intruders [noparse]:)[/noparse]

    If you did a mapping system I would suggest a more "realistic" and less "gps/beacon" system. I know the army is looking into detecting position based on the surroundings and not what a satellite says.
  • DgswanerDgswaner Posts: 795
    edited 2007-07-22 04:25
    Ya Flood you should work on a mapping program for your bot! smilewinkgrin.gif Flood nice work! you shouldn't need to pan while moving. the PING should have a wide enough range that your bot would clear or detect any object in front of it. so if you just add the "detect distance" in your forward loop. and have a condition like, if distance is less then 20" then stop. then go through the discovery rotune at that point, that's what I'm using on my bot and it works quite effective.

    it looks like because of the speed and weight of your bot it coasts for 6-8" which is causing it hit objects. can you brake the motors or can you only turn them off.

    my plans for a sentry bot was to have the bot roam at random or a path. along the way I was going to have it sit for 20-30 min. go into a low power mode and monitor a PIR sensor. (detecting movement) if something moved it would say "enter code is 10 seconds" or something to that effect, and then count down to the siren sounding. voice commands would only add to coolness.

    with an effective mapping it would be cool to have the bot make a round or 2 and then go back to a charging station until the next shift.

    I have plans to add tilt to my PING as I have coffee table issues also.

    it will be interesting to see what direction you take it.

    P.S. I like your desktop app. I use it all the time now!

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    A complex design is the sign of an inferior designer. - Jamie Hyneman, Myth Buster
  • floodhoundfloodhound Posts: 45
    edited 2007-07-22 08:12
    Dgswaner:
    Yes i can break the motors by bursting them in reverse. I am testing it to see how effective it is going to be. I do have a function that says if distance is < 100 then stop but some times i still get into trouble. For the record i am using a IR sensor and perhaps this might be part of the problem.

    Your idea is close to mine about seeing a movement and countdown. Except i got a mini car alarm siren that i can sound if need be. It wakes you up let me tell you and for being less than 3 inches i can fit it in soon.


    Thanks for using my program. I will have to put my "speech activated" program up on my site soon so that you can give it a try as well.

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    My web site -- > www.floodhound.com <-- take a look if you like
  • StampNut2StampNut2 Posts: 224
    edited 2007-07-26 10:57
    Nice work floodhound, I look on with interest. I have a similar project with 9 sensors, but programing is my weakness. http://forums.parallax.com/showpost.php?p=0

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    Never give up when things go wrong.
  • floodhoundfloodhound Posts: 45
    edited 2007-07-27 16:50
    Thanks and good luck on the project you are working on

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    My web site -- > www.floodhound.com <-- take a look if you like
  • StampNut2StampNut2 Posts: 224
    edited 2007-07-28 08:09
    Nice projects on your site floodhound.

    my web site if you are interested robosapienv2-4mem8.page.tl

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    Never give up when things go wrong.
Sign In or Register to comment.