assurance-tunnel
assurance-tunnel
assurance-tunnel
assurance-tunnel

​OSC wireless wearable sensors


  • Beta Platinum

    @CarlMDB said:

    SOPWAMTOS: "Society of People Who Actually Make Their Own Shit ".

     Thanks for that - I love it!

    regards,
    bonemap


  • Tech Staff

    This is very cool. Following closely! 



  • @bonemap What's the positional drift rate on these devices? Last time I checked the accelerometers were not better than about 1m per 1 minute, which really was a stopper for me.

    Thanks for sharing!


  • Beta Platinum

    @eight said:

    the positional drift rate

    These accelerometers do have some drift, but I would be surprised if it is to the extreme that you have described. I have used them for extended periods (over 6 hours continuous) with negligible issues with drift, however I would not say there is no drift. They appear to be much better than the accelerometers I have been using since 2011. The way I am using them currently does not require accurate tracking of position over time or distance. I am using numerical decay and smoothing that responds to the force of directional movements, rotation and orientation of the device. These are like exaggerations of directional movement that are always trying to decay back to the raw reading of the accelerometer data. The numerical data is filtered and passed to numerous 3D player assets that flock and swarm synchronized with rotation and direction of the performers hand movements. The spatial representation of these swarms as projections tracking over physical distances is not going to be achieved with the accelerometer data. There are a couple of other options for spatial tracking, one is a camera vision system that tracks IR LEDS mounted on the device (reducing the battery duration significantly), the other is Bluetooth triangulation (there appears to be a Bluetooth beacon on the NodeMCU) however, the programming task of implementing the Bluetooth option is out of my reach. 

    Cheers,

    bonemap


  • Beta Platinum

    Hi,

    This crowd funded project may be of interest to anyone looking at wearable sensors: synapseWear

    regards

    bonemap


  • Beta Platinum

    @bonemap said:

    post with a video of the unit in production

     An update to the post with a video representation of the wearable sensors in action. I was sick with the flu when this was running, so I have relied on low res 'quick and dirty' social media video documentation made by audience members. It is one scene in the work.


    In this iteration the dancer is wearing three of the ESP8266 based wifi modules with accelerometers sending data to Isadora. One is incorporated into a chest plate shaped as a rib cage and another two - one for each hand. In the video, the chest mounted module is affecting the orientation of the 3D shader ("Seascape" by Alexander Alekseev aka TDM - 2014) using custom Isadora GLSL shader inputs. The two hand accelerometer modules provide data for the 'twig' like 3D objects. The wave height of the Seascape shader is also linked to the sound frequency of the analogue harp music captured with a pick-up. The work was presented in a carpark September 2017.

    We are looking at the next stage prototype now that might use some form of (wifi, bluetooth or NFC) signal strength detection to develop proximity data between the modules, in an attempt to get autonomous relational data streams from the body (centre of gravity) and the limbs (as orbiting/satellite/moving points). 

    The other direction we are exploring is a module with interchangeable sensor components that get 'designed' into a custom PCB board and wearable enclosure. I am very interested in a modular system that can be used as a flexible solution - not just wearable - but also mountable. For example these thermal imaging sensors mounted for motion tracking which means looking into wireless video on the ESP8266. If anyone has already tried this it would be great to hear about it.

    Best Wishes

    bonemap


  • Beta Platinum

    Hi,

    Here is another approach from the UK: MiMu gloves

    Best Wishes

    bonemap


  • Tech Staff

    @bonemap said:

    Here is another approach from the UK: MiMu gloves

    I think I'm in love!

    Unfortunately, I can't afford to buy any more equipment at the moment. Fortunately, they're not in stock right now so the state of my bank account doesn't matter. Wish I knew how much they cost though...

    Best wishes,

    Woland


  • Tech Staff

    @bonemap said:

    the other is Bluetooth triangulation (there appears to be a Bluetooth beacon on the NodeMCU) however, the programming task of implementing the Bluetooth option is out of my reach

    I may know someone who might be able to help with that. I'll DM you some info.

    Best wishes,

    Woland


  • Tech Staff

    @bonemap said:

    Hi,
    Here is another approach from the UK: MiMu gloves
    Best Wishes
    bonemap

    While we’re mentioning wireless wearables, of course there’s always the Myo Armband. This thread is starting to turn into a lovely repository for fun wireless wearables, so I thought I’d mention that one.

    Best wishes,

    Woland