Project number
25050
Organization
Rob Dollar Foundation
Offering
ENGR498-F2024-S2025
Arizona law A.R.S. 28-735 mandates that vehicles maintain a minimum 3 ft passing distance when overtaking cyclists, yet no enforcement mechanism currently exists. This project seeks to develop a handlebar-mounted detection device that identifies and documents violations to provide evidence and improve cyclist safety.
This phase of development focused on high-speed detection methods to ensure accurate data capture for vehicles traveling at speeds of up to 45 mph relative to the bicycle. The goal was to deliver five functional prototypes for sponsor testing.
The system uses a time-of-flight sensor for rapid sampling. If a vehicle encroaches within the 3 ft threshold, an ESP32-S3 Sense microcontroller triggers a forward-facing camera to capture a burst of images and activates an LED alert for the cyclist. The device integrates with a companion smartphone app that logs GPS location, uploads images and auto-selects key frames from the incident.
Designed for versatility, the modular housing supports both drop-bar and flat-bar handlebars to ensure broad compatibility across different bicycle types. This innovative system provides a practical enforcement tool to enhance cyclist safety and promote compliance with driving laws.
This phase of development focused on high-speed detection methods to ensure accurate data capture for vehicles traveling at speeds of up to 45 mph relative to the bicycle. The goal was to deliver five functional prototypes for sponsor testing.
The system uses a time-of-flight sensor for rapid sampling. If a vehicle encroaches within the 3 ft threshold, an ESP32-S3 Sense microcontroller triggers a forward-facing camera to capture a burst of images and activates an LED alert for the cyclist. The device integrates with a companion smartphone app that logs GPS location, uploads images and auto-selects key frames from the incident.
Designed for versatility, the modular housing supports both drop-bar and flat-bar handlebars to ensure broad compatibility across different bicycle types. This innovative system provides a practical enforcement tool to enhance cyclist safety and promote compliance with driving laws.