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Anthony DiVirgilio

iRobot - Home Base - YouTube - 3 views

www.youtube.com/watch

iRobot base

shared by Anthony DiVirgilio on 13 Oct 11 - No Cached
  • Anthony DiVirgilio on 13 Oct 11
     
    This is a good description of how the roomba finds its way back to the base
Thomas Corcoran

How do I use the Roomba Home Base®? - 4 views

uksupport.irobot.com/...-the-roomba-home-base%E2%AE%3F

Homebase

shared by Thomas Corcoran on 13 Oct 11 - No Cached
  • oomba needs to find the infrared signal of the Home Base in order to return.
  • Thomas Corcoran on 13 Oct 11
     
    this is how the roomba finds homebase
Alexander Laferriere

chowmillersumobots - 8 views

chowmillersumobots.wordpress.com

sensor NI sound iRobot sensors detection robot Ultrasonic wall obstacle

shared by Alexander Laferriere on 15 May 12 - No Cached
  • Declan Coen on 15 May 12
     
    the robot designs on this page are possible for our criteria. the majority of them have a ramp like structure on the front for pushing and flipping
  • ...3 more comments...
  • Joshua Wilkinson on 15 May 12
     
    the ramp on the front seems to be the easiest way to win based on other designs ive seen.
  • Alexander Laferriere on 17 May 12
     
    this has some good ideas
  • Thaddeus McKeon on 17 May 12
     
    the terminator looks like a fun approach to this project
  • Thomas Helm on 17 May 12
     
    i wish i could see some of the videos but i cant right now i wanted to see if thee were any changes to ramp in general
  • Jarid Brogan on 17 May 12
     
    the sumobotofdestruction looks cool and doable
Anthony DiVirgilio

Fuzzy Line Following NXT Robot - 5 views

stefans-robots.net/...zy-line-follwing-nxt-robot.php

following line nxt robot

shared by Anthony DiVirgilio on 12 Mar 12 - No Cached
  • Bryan Kelleher on 12 Mar 12
     
    One of the tutorials within the Lego Mindstorms NXT Software shows how to program a robot that follows a line using Boolean Logic. In the following, an improved version, based on Fuzzy-Logic, is presented. Although a little bit more complex, the program is still implemented using NXT-G Code.
  • Anthony DiVirgilio on 12 Mar 12
     
    this has some good ideas
Joshua Wilkinson

http://www.teamhassenplug.org/NXT/Gears/ - 16 views

www.teamhassenplug.org/Gears

shared by Joshua Wilkinson on 06 Dec 11 - No Cached
  • This motor shaft will make 3 rotations, in the same time the output shaft makes 5 Gears used: 20 tooth on motor, 12 tooth on output Gear Ratio: 3:5 Power: 3/5x motor Speed: 5/3x motor (faster)
  • This motor shaft will make 1 rotations, in the same time the output shaft makes 3 Gears used: 24 tooth on motor, 8 tooth on output Gear Ratio: 1:3 Power: 1/3x motor Speed: 3x motor (faster)
  • Anthony DiVirgilio on 06 Dec 11
     
    great ideas for gear ratios
  • ...4 more comments...
  • Jarid Brogan on 06 Dec 11
     
    very helpful gear ratio chart
  • Joshua Wilkinson on 06 Dec 11
     
    the bottom two charts are good. It does make it go considerably faster
  • Thomas Helm on 07 Dec 11
     
    It looks like a smart idea for designing the wheels maybe it would be possible to adjust it and make it stronger
  • Joshua Wilkinson on 07 Dec 11
     
    This is probably the best for speed and power(torque). The robot would be front wheel drive based on that if the nxt is on the back with the wheels the robot would flip or slide down due to the weight on the downhill side of the robot not the uphill side(assuming the track is at 22.5 degress
  • Thaddeus McKeon on 07 Dec 11
     
    I agree wit Josh this is what we need for the project
  • Alexander Laferriere on 07 Dec 11
     
    this has some good ideas
Anthony DiVirgilio

Roomba - Wikipedia, the free encyclopedia - 3 views

en.wikipedia.org/Roomba

shared by Anthony DiVirgilio on 13 Oct 11 - Cached
    • Anthony DiVirgilio
      Anthony DiVirgilio on 13 Oct 11
       
      these are some behaviors we could try to program our robots to do
  • generation models have a self-charging homebase they automatically try to find (via its infrared beacons). Charging on the homebase takes about three hours. All second and most third-generation Roombas can be used with the homebase, even if they do not come packaged with it.
  • Four infrared "cliff sensors" on the bottom of the Roomba's bumper prevent it from falling off ledges such as the top steps of stairways. Most second- and third-generation models have internal acoustic-based dirt sensors that allow them to detect particularly dirty spots (zones having excess particulates) and focus on those areas accordingly.
  • Stephen Brogan on 13 Oct 11
     
    Roomba descr with functions and hows
Declan Coen

HowStuffWorks "Roomba Navigation" - 2 views

electronics.howstuffworks.com/...robotic-vacuum2.htm

shared by Declan Coen on 13 Oct 11 - No Cached
  • While Roomba is cleaning, it avoids steps (or any other kind of drop-off) using four infrared sensors on the front underside of the unit. These cliff sensors constantly send out infrared signals, and Roomba expects them to immediately bounce back. If it's approaching a cliff, the signals all of a sudden get lost. This is how Roomba knows to head the other way
    • Anthony DiVirgilio
      Anthony DiVirgilio on 13 Oct 11
       
      this is how the roomba detects cliffs
  • Roomba can clean for about two hours on a single charge. If you have the self-charger, Roomba will return and connect to the charger all by itself when the battery power is low (the self-charger is sold as an add-on to the Roomba base model but comes included on most of the higher Discovery models). It accomplishes this using the infrared receiver on its front bumper. When the battery power gets low, the vacuum starts looking for the infrared signal emitted by the charger. Once it finds it, Roomba follows the signal and docks itself to the charger. Some robotic vacuums with this self-charging feature will head back out to resume cleaning once they're fully recharged
  • Declan Coen on 13 Oct 11
     
    this shows why cliiff sensors are needed and how they work
Thomas Corcoran

obstacle avoidance - 5 views

jvc.sagepub.com/...1077546310372004.abstract

obstacle

shared by Thomas Corcoran on 17 Oct 11 - No Cached
  • In this study, a path correction and obstacle avoidance method for a bipedal intelligent robot, using an ultrasonic sensor and electronic compass sensor, is proposed. The proposed method is implemented on an autonomous humanoid robot (the ARSR) comprised by the Lego NXT Intelligent Bricks. One ultrasonic sensor and one electronic compass sensor are installed on the ARSR to detect environmental information including obstacles, the distance to the obstacle, and the directional angle of the robot. Based on the obtained information, an obstacle avoidance and path correcting method is proposed to decide the ARSR’s behavior so that it can avoid obstacles automatically and move effectively to the destination area. Three obstacle avoidance experiments are carried out to confirm the effectiveness of the proposed method.
  • Thomas Corcoran on 17 Oct 11
     
    what to use for obstacle avoidance
  • Bryan Kelleher on 18 Oct 11
     
    I think this is a good idea!
Joshua Wilkinson

iRobot Corporation: Customer Care - Service/Support - 0 views

homesupport.irobot.com/...491

homebase sensor

shared by Joshua Wilkinson on 17 Oct 11 - No Cached
  • The Roomba Remote, Virtual Wall, and Home Base operate using an invisible infrared technology.
  • Joshua Wilkinson on 17 Oct 11
     
    we could use light snesor to pick up light emitting from the homebase
Declan Coen

What are Roomba Virtual Wall Lighthouses™? - 1 views

uksupport.irobot.com/...l-wall-lighthouses%E2%84%A2%3F

roomba home base

shared by Declan Coen on 16 Oct 11 - No Cached
  • Alexander Laferriere on 17 Oct 11
     
    i dont think we can have virtual walls in our kit
  • Joshua Wilkinson on 17 Oct 11
     
    no we dont have virtual walls in our kit
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