I would like to implement voice recognition in an NXT robot. So that I could write a program and make the robot react to a specific word I say to it.
Problems I face are:
I don’t see that there is a voice recognition sensor for NXT(the ones I find are only sound volume sensors). So I would need to know if there is a sensor other than this (maybe another compatible brand?) that I could use.
There seems to be a software needed for speech recognition. There is an open source software called sphinx that I found online. But I dont know how (or if it would be possible) for it to be used in the NXT robot. I did find that there is something called Lejos, which is a java based NXT brick. But I dont know what software and sensor would need to be used with it. Possibly the java based sphinx, more so the pocket sphinx (due to the small memory of the NXT)
I cant seem to find how much memory the NXT comes with so to check whether I can install pocket sphinx on it.
I do not think that NXT has enough computing power to implement voice recognition programm. In native RCX os it is impossible, it may be possible with LEjos but again, not enoughs speed and memory for the task.
There is NXT sound sensor which can be used with NXT. You may be able to make program to recognize sounds of certain frequency.
Why do not make PC to recognize what are you saying and then send IR or BT commands to NXT to be executed?
Is it worth it?
HECK YES! It’s absolutely awesome. Go to youtube.com and type in "first lego league" to see them in action.
I would like to build a car, robot, etc, but I want it to fail (stop moving its motors) after 5 or 10 mins. is this possible? can you use timers in the program or something like that?
Also, if you had the program done, assembly instructions and required pieces to build a not to complex car (2 motors, 2 sensors) how long do you think it would take to someone who has never seen a mindstorm.
thaks for your time
it takes great skill and confidence
i have trouble programming the robot so that when a sensor senses something it triggers another move, Ex: i tried to program it so when the touch sensor is pressed, another motor would move. After i programmed it, I started the robot and it just skipped a step, the motor activated without the touch sensor sensing something. So can you help me please.
i need to program something like this, first have the robot move in a circle until the ultrasonic sensor senses something 50 inches or less away. Then, my robot will go straight towards it.After that, i wanted another one of my motor which controls a weapon to turn on and stay on when the object i am going towards is 10inches or less away but i need to keep going forward at the target after the weapon turns on.finally i need to get next to my enemy and stay there for about 6 seconds then repeat the steps
i am doing this at school and this is the first time my teacher is using mindstorms so he doesn’t know either
please help me thank you
try setting a "wait for event" loop.
idk it’s been a while since i played with NXT.
This is my version of the PF Remote sensor made by Dave of NXTPrograms.com
I made this version with a differential input giving one four speed directional output to which I attached a rotation sensor, the rest is programming.
I do not have the RCX style rotation sensors so I used my own optical sensor
It is a simple coloured drum and a light sensor, theres some clever tricks to determine direction but because the sensor relies on full rotations it is a little slow to respond hence the 1 second update (& heartbeat tone)
More at Brickshelf:
http://www.brickshelf.com/cgi-bin/gallery.cgi?i=3044386
Rotation Sensor at NXTLOG:
http://us.mindstorms.lego.com/nxtlog/ProjectDisplay.aspx?id=afb1e401-94b7-4060-b779-d6ebafabd100
And the inspiration:
http://www.nxtprograms.com/extra/PF_remote/index.html
Duration : 0:1:7
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Technorati Tags: Functions, LEGO, NXT, Optical, Power, remote, Rotation, sensor
Dette er bygget fra kapittel 1 – 4 fra boken Lego Mindstorms NXT The Mayan Adventure.
Jeg måtte gjøre om litt på programmet for å få den til å virke riktig. Jeg la på tilslutt en ekstra move block som varer i 10 sekunder. Morsom når den gjør som den skal.
This i buildt from Chapter 1 – 4 fom the book Lego Mindstorms NXT The Mayan Adventure.
I have to edit the program little bit to get it to work correctly. I add a moveblock who run in 10 second in the end. This robot its cool and funny when its works correctly.
Duration : 0:2:31
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Technorati Tags: ''Veronica, ExploroBot, James Floyd Kelly, Judin, Lego Mindstorms NXT, Skotterud Norway, The Mayan Adventure
Machine learning is a key technology to design and create intelligent systems, products, and related services. Like many other design departments, we are faced with the challenge to teach machine learning to design students, who often do not have an inherent affinity towards technology. We successfully used the Embodied Intelligence method to teach machine learning to our students. By embodying the learning system into the Lego Mindstorm NXT platform we provide the student with a tangible tool to understand and interact with a learning system. The resulting behavior of the tangible machines in combination with the positive associations with the Lego system motivated all the students. The students with less technology affinity successfully completed the course, while the students with more technology affinity excelled towards solving advanced problems. We believe that our experiences may inform and guide other teachers that intend to teach machine learning, or other computer science related topics, to design students.
For more information see http://www.bartneck.de/publications/2008/teachingMachineLearning/index.html
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Us, SK taman megah Raptors Robotics Club from Selangor Malaysia have won many awards including going to international level last year. Now, we are one of the nominees for the best co-curriculum club in the country.
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Secondary School in Polydrossos-Fokida-Greece, created a Lego NXT robot that writes HELLO
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Technorati Tags: education, LEGO, NXT, robomania, robot, robotics, writer
Lego has announced it’s updating its Lego Mindstorms kit with an updated and some would say simplified version of the hugely successful range.
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