To be able to say something that makes sense about your driving behavior we need to know your position. To be able to get your position, we use GPS, same as Google Maps or any other navigation app. The funny thing is, Flo does not need internet to work. The phone knows where you are at which point in time, and that’s how we know your speed, the sharpness of your corner and the increase or decrease in speed (accelerating and braking). We don’t use the accelerometer in your smartphone, because it would detect a lot of stuff that is not there. See for example this little geeky Youtube film in which no car accidents occur:
Algorithm, segments and score model
Like explained, we use your position (the GPS sensor measures this each second) to be able to know all about movement, change in movement and direction. We divide your trip into segments. Based on behavioral patterns, we distinguish three different types of segments: city traffic, between cities and highway traffic. Behavior within these segments is judged differently. Things as speed and acceleration are of course very different on a highway compared to busy city traffic. And there’s a big difference in length of the segments. Each event we detect gets a green, orange or red card. This results in awarding, or deduction of points. Your trip score equals the sum of your segment scores (minus that last incomplete segment) divided by the number of segments you’ve completed.
Bringing the Flo score to you
So we use your phone to record your trips, to give you real time feedback and to show you your trip score. In your online profile you will see some more features and possibilities to explore your trips. If you have a premium profile, you can download your trips in a spreadsheet, a Word doc, or in a KML file format. In the next blog we’ll tell you all about upcoming great stuff we’re working on right now!