Applying for: This is intense!
From the start our goal was to make a smart cycling helmet, the SmartHjelm. And to make a smart helmet, you need sensors. The more sensors the better! At the moment we are utilising 7 different sensors for a complete SmartHjelm experience: camera, microphone, accelerometer, temperature sensor, pressure sensor, humidity sensor, and a GPS-sensor!
Camera and microphone
To provide the wearer of SmartHjelm with a rear view through our mobile app, we have mounted a camera at the rear of our helmet. The camera streams a live feed to the mobile app.
The microphone is used to communicate with Google Assistant. Just say “Hey Google”, Google in its infinite wisdom will reply.
Sense HAT sensors
On our Raspberry Pi we have mounted a Sense HAT, which has a whole range of useful sensors. The accelerometer is used to activate the automatic break light as shown in the video below.
The pressure sensor lets the wearer know if he/she should be careful because of little oxygen reply if biking at high altitudes, while the humidity sensor lets the user know if he/should be careful to drink extra liquids. The temperature sensor is too close to the Raspberry Pi to measure the air temperature, so it rather measures the temperature, and thereby its own health. These weather sensors are shown in our dashboard that is under development.
GPS
The GPS provides us with location data. It tells us where we are, as shown on the map in our dashboard above, and also the speed. And from the location we get the local weather, to let the wearer of SmartHjelm know if it is hot or cold through our mobile app. Sensors make life so much better!
