Motus - Smart Bike
Motus is a prototype smart bike that incorporates turn signaling, brake lights, and blind-spot detection onto a standard bike, increasing safety for cyclists and motorists alike. This bike utilizes Particle Photons to monitor a sensor data, to receive input from the cyclist, and to activate lights to signal turning or braking.
Prototype Features
Blind-spot detection displayed on the handlebars. Joystick on handlebar activates turn signals.
Turn signals on handlebars for forward visibility.
Brake lights engaged in rear housing.
Turn signals engaged in rear housing.
Laser cut casing for rear sensor array and micro-controller housing.
Turn Signaling System
Below is a circuit diagram for the turn signaling system. Joystick input is read by the Particle Photon which sends signal to a NeoPixel strip. Similarly, a hall effect sensor is mounted on the brake handle to detect braking. A position sensor mounted on the bike determines when the bike has stopped turning to automatically cancel the turn signal. The UV light sensor automatically detects nighttime and low-light conditions to turn on a front-facing headlight and engage a night-time configuration on the rear lights.
Circuit diagram of turn signaling system.
Blind-spot detection system
Below is a circuit diagram for the blind-spot detection system. Three IR sensors are mounted in an array behind the cyclist to monitor their blind-spots. Sensor input from this array is collected by a Particle Photon. The IR sensor array senses vehicles, pedestrians, and other cyclists near the bike and notifies the cyclist of the proximity and direction using a light ring on the center of the handlebars. As an object gets closer to the sensors, the lights become brighter before blinking when an object is critically close.
Circuit diagram of blind-spot detection system.