Bicycle Safety Apparatus Using Proximity Detection and Feedback
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Solution Overview
Problem
Current safety devices for cyclists, such as visibility aids and the 'lollipop' flag, are ineffective in consistently discouraging drivers from overtaking at unsafe distances, leading to accidents and deterring people from cycling, which contributes to road congestion and environmental issues.
Innovation Solution
A device comprising an image data recorder, vehicle proximity detector, computer processor, and data transmission module that identifies and records unsafe overtaking events, transmitting relevant data to a remote server to motivate drivers to maintain safe distances, potentially through insurance premium adjustments and public awareness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If visibility aids and lollipop flags are used to encourage safe overtaking, then driver awareness of cyclist presence is improved, but the effectiveness in consistently preventing unsafe overtaking remains insufficient
Solution Approach 1:
The patent implements feedback by recording overtaking events with image data and vehicle proximity information, then transmitting this data to a remote server. The system provides feedback to drivers about their overtaking behavior, enabling them to adjust their actions to maintain safe distances. This feedback mechanism transforms the passive visibility aid into an active safety system that learns from and responds to actual driving behavior.
Solution Approach 2:
The patent replaces mechanical/physical safety devices (visibility aids, lollipop flags) with an electronic monitoring and data transmission system. Instead of relying on passive mechanical elements to warn drivers, the system uses image recorders, proximity detectors, and digital communication to actively monitor and report overtaking events, substituting physical warning mechanisms with electronic information systems.
2Loss of information
If image data is transmitted continuously to the remote server, then complete overtaking event information is captured, but data transmission bandwidth and energy consumption increase
Solution Approach 1:
The patent implements periodic action by transmitting image data selectively based on detected overtaking events rather than continuously. The system monitors vehicle proximity and triggers data transmission only when overtaking maneuvers are detected, creating a periodic transmission pattern that balances information completeness with energy efficiency. This event-driven approach ensures critical safety data is captured while minimizing unnecessary energy consumption during normal cycling.
Data Source
AI summary
The bicycle safety device preferably measures both the traverse proximity to the bike frame and speed of an overtaking vehicle and calculates a driving safety assessment based on a predetermined safety threshold. This assessment, along with the video evidence, is uploaded to a remote server. The device may have a very distinctive light display/effect (which may double as a rear bike light) so that drivers will recognize the device and respond by only overtaking when they are able to do so safely.