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The Story of OwnTracks

The Story of OwnTracks

A talk given at the IoT Conference in Muenchen (Munich) in March 2015: a short walk through the story of our OwnTracks apps.

Jan-Piet Mens

March 24, 2015
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  1. Their big data { "features": [ { "properties": { "placardHeight":

    59, "placardWidth": 56, "id": "-8307528510653225244", "accuracyInMeters": 1414, "timeStamp": 1338351805, "reverseGeocode": "Friedrichsdorf, Germany", "photoUrl": "http://www.google.com/latitude/apps/badge/api?type=photo&photo=nkj- mzcBAAA.dxs397bzbO1k\nl-Dgy0qFIg.vWW5zvcxLgY3uaJrvEZnJA", "photoWidth": 96, "photoHeight": 96, "placardUrl": "http://www.google.com/latitude/apps/badge/api?type=photo_placard&photo=nkj- mzcBAAA.dx\ns397bzbO1kl-Dgy0qFIg.vWW5zvcxLgY3uaJrvEZnJA&moving=true&stale=true&lod=1&format=png" }, "geometry": { "coordinates": [ 8.65486, 50.238862 ], "type": "Point" }, "type": "Feature" } ], "type": "FeatureCollection" }
  2. MQTT for iOS? 2013? libmosquitto MQTTKit MqttSDK MQTTClient 3.1.1 3.1

    3.1 3.1.1 libmosquitto libmosquitto native native (openssl) CFNetwork CFNetwork socket socket
  3. our data: JSON { "_type": "location", "t": "p", "lat": "50.1905",

    "lon": "8.65076", "tst": "1418765439", "acc": "65", "batt": "96", "alt": 146, "vac": 10, "event": "enter", "desc": "Restaurant", "tid": "jp" }
  4. to pack or not to pack {„_type":"location","t":"L","tid":"C2","tst":"1413805066","lon":"13.5 32628","lat":"52.432363","cog":0,"vel":0,"alt":30,"dist":0,"trip":0} JSON JSON

    zipped protobufs thrift msgpack msgpack (bin) csv csv optimized 0 40 80 120 160 C2,54d58444,L,51123456,66654321,0,0,7,0,236