NXT Line Follower - 1 views
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Thaddeus McKeon on 12 Mar 12yet another NXT line follower bot using the light sensor
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Group items tagged
LINE - 4 views
Line Following In Chapter 3, we talked about going straight and having a well-tuned robot. I mentioned using the field environment for help in traveling a straight line, such as running along the...
Sumobots - 3 views
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i thing that this proves that a big plow in the front may be a good idea
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Jarid had posted a link as well with the plow as a v shape. this would work if your going for pushing someone off the table
RoboChallenge - 3 views
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some good ideas for design
Sumo Bots - Science Olympiad Student Center Event Wiki - 0 views
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this has some good explinations of designs
Sumo Robot Contest [Including How To Videos] - 2 views
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this shows that the robots will be better at pushing if that have alot of torque
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shows a great example of an inclined plane
NXT Mini Sumo Bot - 1 views
LEGO - 9 views
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sorta of a change in design than the last one i had thought was good
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looks good
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Great pictures Tommy. We can use some of these ideas to build our robot
NXT Required Software - 1 views
NXT Voice Controlled Car - 4 views
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we could use this logic, when the sound sensor detects the sound indicating the start of the race that would be the starting condition for the program ps. i know that we do not use the same programming as in the picture -
But what if people are speaking? you would have to set it to a certain frequency.
LEGO.com MINDSTORMS : Products - SENSORS - 9843 - 1 views
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is it posssible to use at least two of these on the robot, or is there not enough ports on the nxt
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im very sure that you can use more than one sensor but ill see if i an find something on it now
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The Touch Sensor reacts to touch and release, enabling your LEGO® MINDSTORMS® NXT robotic creation to "feel" like never before! It can detect single or multiple button presses, and reports back to the NXT Intelligent Brick
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Interactive sensor database
Roomba - Wikipedia, the free encyclopedia - 3 views
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these are some behaviors we could try to program our robots to do
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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.
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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.
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Roomba descr with functions and hows
HowStuffWorks "Roomba Navigation" - 2 views
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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
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this is how the roomba detects cliffs
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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
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this shows why cliiff sensors are needed and how they work
Sound sensor - 4 views
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Both LEGO™ NXT sound sensors were placed at the same distance from the speaker. A very simple LabVIEW NXT toolkit was run in debugging mode, in order to display the values on the PC screen and keep the NXT alive (Fig. 3). The frequency and the signal amplitude were gradually changed and the sensor readings were noted manually and entered into an Excel-file and also into a LabVIEW 3D-graph program (that we do not reproduce here). (Fig. 4 and 5) show the different graphs in 3D for the frequencies 100..1000Hz.
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we could use this to make the user have to do less to use the robot
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Sound sensor with example code - ...1 more comment...
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This shows how the sensor will detect sound and then transmit it to the nxt
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THIS WAS EXTREMELY HELPFUL
NXT Sensor Guide - 3 views
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list of all sensors and what they do
wall following - 4 views
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this shows the wall following in action
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this is a good design for our robot because it has the sensor on the side for wall following and it has a touch sensor on the front which tells it to turn
NXT Line Follower - 8 views
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shows how to build a robot that follows lines.
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line follower
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All we would have to do is change those razor things out
NXT Wall Follower with Ultrasonic Sensor - YouTube - 1 views
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these people placed the ultra sonic sensor on the front so the robot will never lose trsc of the wall
obstacle avoidance - 5 views
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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.
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what to use for obstacle avoidance
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I think this is a good idea!
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