Why a smart green cycle?

Because we are ecologist and technological.

We want to fly away from motorbike at traffic light who make us breathe lot of
exhaust, and arrive to our office as if we'd just stepped out of the shower and not like smelly “traditional” cyclists !

Which problem do we want to solve ?

We want to make more enjoyable go biking.

We want to solve the problems of continuous gear adjustement while moving in city traffic, as a car does.

We want to reduce maintenance and continuous gear changes.

The idea was born looking at auto and motorbike world: in fact no driver want to be in the traffic and make lots of speed changes for a good driving.

How we did it?

We use the Intel Edison board connected with our smartphone to control all the processes: start, acceleration, speed, tilt and GPS positioning.

The Edison board and all sensors are self-powered with a solar panel.

Step 1: Step:1 Start Working

We chose a particular gear integrated in the hub ( a Shimano Nexus inter 7) that allows to change the speed also when we stand still and go fast as the traffic light turn to green.

We can choose to turn the automatic gear off and ménage the speed with a joystick as the sequential gearbox on your car!

There is a Led on the handle bars to let you know the speed rate and flashes if the battery is low.

The system is recharged by a solar panel located on the luggage holder so the system is energetically autonomous.

Step 2: Step 2: Connecting Edison Board

Edison board recognize our phone via Bluetooth .

The gyro sensor controls the bike position and in case of fall the system, after 10 second, transmits a message to a predefined phone number.

To measure the speed we use a magnetic sensor ( Hall effect) on the bike frame and a magnet on the spook.

Depending on our speed a relay drives a servo motor which effects on speed mechanism.

Step 3: Step 3: Writing Code

we wrote the code :

the code is divided in 3 parts

program for Edison Board to control all the peripherics
program for the smartphone to connect via bluetooth Edison board and server site
program server on the site connected with Microsoft Azure

Step 4: Step 4: Test

The system is a prototype but was tested and is completely operative.

Step 5: Step 5: List of Materials and Tools

Materials:

a physical bike
Intel Edison board
Grove starter Kit plus Intel IoT Edition ( base shield V2, Flame sensor, buzzer, temperature sensor, red LED, light sensor, servo, gyro, LED bar)
white Led
hall effect sensor
GPS
joystick
spbt switch
green LED
solar panel
1 pb battery 12 V, 1200mAh
Internal gear hub Shimano Nexus inter 7
a smartphone