Bedsore prevention mat

2019-03-18 in blog on iot, hackathon

The air mattress that prevents patients from developing pressure ulcers (bedsores), thereby improving their quality of life (QOL), promoting their rehabilitation, and reducing the burden of caregivers when changing a patient’s body position. wiki

1. Heatmap

Heatmap

1. How to get started
   • install Node.js
   • install heatmap.js with bower

      > npm install -g bower
      > bower install -g heatmap.js-amd
   

• Start a webserver

    > cd bower_components\heatmap.js-amd
    > python -m SimpleHTTPServer 1337 &
  

• Then browse to http://localhost:1337/examples/

1. Examples

2. Coding
   • Javascript

    window.onload = function() {
      function generateRandomData(len) {
        var points = [];
        var max    = 0;
        var width  = 840;
        var height = 400;
        var len    = 200;
   
        while(len--) {
          var val = Math.floor(Math.random()*100);
          max = Math.max(max, val);
          var point = {
            x: Math.floor(Math.random()*width),
            y: Math.floor(Math.random()*height),
            value: val
          };
          points.push(point);
        }
        var data = {max:max, data: points};
        return data;
      }
      var heatmapInstance = h337.create({
        container: document.querySelector('.heatmap')
      });
      var data = generateRandomData(200);
      heatmapInstance.setData(data);
    }
   

   • Result
     
3. Demo