Robocalypse: Controlling Nodebots with Kinect gestures

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confidential not for distribution A Full Stack 2015 London presentation by Joel Lord Robocalypse: Controlling Nodebots with Kinect gestures

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Overview About Me Why The Goals What Exists What I wanted Gestures 101 Demo

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About Me

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About Me Joel Lord Development Manager Javascript junkie, technology enthusiast, IoT hobbyist. Macadamian http://www.macadamian.com Twitter: @joel__lord Github: github.com/joellord

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Stereotypes I have never fought a polar bear with my bare hands

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Stereotypes My yard last April

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Why ?

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Why •  Worked with Nodebots for a while now •  Wanted to explore other possibilities of NodeJs •  Because controlling a robot with a Kinect is pretty cool

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The Goals

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The Goals •  Needed a way to use events to tell the robot to perform an action •  Gestures seemed the best way to achieve this

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What currently exists

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What current exists Basic Nodebot Stack •  NodeJs (https://nodejs.org/) •  Socket.io (http://socket.io/) •  Johnny-Five (http://johnny-five.io/)

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What current exists node-openni •  Connects the Kinect to NodeJs using OpenNI •  Very basic event for almost everything •  No gestures !

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What I needed

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What I Needed •  Support for a full “skeleton” •  Support for gestures

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What I Needed

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Gestures 101

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Gestures 101 The Basics •  Is the initial condition met? •  Is the condition still met? •  Is the final condition met?

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Gestures 101 What do I need for gestures? •  A skeleton with an event when it changes •  Know the position of the COM •  Have a “base unit”

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Gestures 101 Introducing kinect-gestures •  Gesture detection using a base class •  Tracks the skeleton for an initial condition •  Checks every 100ms to see if the condition is still met •  If the final condition is met, trigger an event •  Other classes are used to define the actual gestures

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Robocalypse Demo Let’s look at some code !

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Next few steps •  Return a more friendly coordinate system for skeleton •  Add more information to the returned •  Add more gestures (jump, wave, kick)