Bicycle Safety Exclusion Zone Projection System
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Solution Overview
Problem
Existing bicycle safety systems are inadequate in enhancing situational awareness for cyclists and improving visibility to oncoming vehicles, as they rely on cyclist attention and may not actively alert drivers of proximity to bicycles, especially in cases where vehicles lack detection systems.
Innovation Solution
A bicycle safety exclusion zone system comprising projector-sensor devices that detect approaching vehicles and project a visual safety zone on the ground, changing its appearance and alerting the cyclist and drivers visually or audibly when the zone is breached, and can communicate with autonomous vehicles to assist in path calculation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If existing bicycle safety systems (mirrors, detection mechanisms) are used, then situational awareness for the cyclist is improved, but visibility to oncoming vehicles and active alerting of drivers is insufficient
Solution Approach 1:
Instead of relying on the cyclist to maintain awareness of vehicles, the system inverts the approach by having the bicycle actively project visual exclusion zones and send alerts to drivers. The bicycle becomes the active signaling party rather than the passive observer, ensuring drivers are notified regardless of cyclist attention.
Solution Approach 2:
The system introduces an intermediary communication channel between the bicycle and drivers through projected visual exclusion zones on the road surface and electronic alerts to vehicles. This intermediary visual and electronic signaling system bridges the gap between cyclist safety needs and driver awareness.
2Reliability
If visual exclusion zone projection is implemented, then driver awareness of bicycle proximity is improved, but the system complexity increases
Solution Approach 1:
The projected visual exclusion zone serves multiple functions simultaneously: it defines the safety zone around the bicycle, communicates proximity to drivers, and provides a visual reference for drivers to judge appropriate passing distance. This multi-functionality reduces the need for separate signaling systems.
Solution Approach 2:
The system replaces complex mechanical alerting mechanisms with optical projection technology. Instead of using horns, lights, or mechanical signals, the system uses projected visual patterns on the road surface to convey safety information, simplifying the mechanical complexity while improving reliability.
3Object-affected harmful factors
If active detection and alerting systems are added to all vehicles, then cyclist protection is improved, but the cost and complexity of vehicles increases
Solution Approach 1:
Instead of requiring all vehicles to be equipped with active detection systems, the system inverts the approach by having the bicycle equip itself with detection and projection capabilities. The bicycle actively detects approaching vehicles and projects warning zones, shifting the complexity from the vehicle side to the bicycle side.
Solution Approach 2:
The bicycle safety system performs self-service by equipping the bicycle itself with detection sensors, processing units, and projection devices. The bicycle independently detects vehicles, calculates exclusion zones, and projects warning signals without requiring external vehicle systems, making the solution universally applicable regardless of vehicle sophistication.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system provides active protection for cyclists by ensuring drivers are alerted to their proximity to bicycles, regardless of vehicle age or detection system presence, and enhances safety through visual cues and alerts, even for inattentive drivers, while also aiding autonomous vehicles in navigating around cyclists.
Implementation Method 1
projector-sensor devices that detect approaching vehicles
Implementation Method 2
project a visual safety zone on the ground
Data Source
AI summary
Bicycle safety exclusion zone systems capable of being attached to a bicycle, comprised of one or more projector-sensor devices and a processing unit. Each projector-sensor device is capable of detecting vehicles in proximity of the bicycle and of projecting at least a portion of a visual safety exclusion zone upon ground surrounding the bicycle. The processing unit is in communication with the one or more projector-sensor devices. When one of the projector-sensor devices detects a vehicle in proximity to the bicycle, the processing unit generates an alert detectable by a user of the bicycle, and the one or more projector-sensor devices change the visual appearance of the visual safety exclusion zone. In some embodiments, the change in the visual appearance of the safety exclusion zone comprises a change of color.