Vehicle Projector for Obstacle Highlighting and Pathway Projection
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Solution Overview
Problem
Passenger vehicles face challenges in safely guiding passengers around obstacles within the drop zone, particularly static and dynamic obstacles, as existing systems lack effective real-time projection and alert mechanisms to avoid potential hazards.
Innovation Solution
The method involves using sensors to detect passengers and obstacles within the drop zone, with a projector mounted on the vehicle to highlight static and dynamic obstacles, and project a suggested pathway that avoids these obstacles, using varying intensity projections and audio alerts based on proximity and severity levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a projector is mounted on the vehicle to highlight obstacles in real-time, then passenger safety is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple functions into a single integrated system: the projector is mounted on the vehicle and works in conjunction with sensors to detect obstacles, process their trajectories, and project both obstacle highlights and safety pathways. This merging of detection, processing, and guidance functions into one coordinated system improves passenger safety while managing device complexity through functional integration rather than separate independent systems
Solution Approach 2:
The projector serves multiple functions: it highlights static obstacles, marks dynamic obstacles with different patterns, projects predicted trajectories of moving obstacles, and indicates safe pathways for passengers. This multi-functionality allows a single device to address various safety scenarios, improving reliability while avoiding the need for multiple separate systems that would increase complexity
2Measurement precision
If multiple projection types with varying intensity are used to highlight different severity levels of obstacles, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent applies different projection qualities to different obstacles based on their severity and characteristics. Static obstacles receive one projection pattern, while dynamic obstacles receive different patterns with varying intensity and motion characteristics. This local differentiation allows precise classification of obstacle severity through the projection itself, improving measurement precision while using a single projector system rather than multiple specialized devices
3Reliability
If real-time sensing and projection of obstacle trajectories is implemented, then passenger safety is improved, but use of energy increases
Solution Approach 1:
The system implements periodic sensing and projection cycles rather than continuous operation. The sensors scan for obstacles and the projector updates trajectories at regular intervals, which is sufficient to track moving obstacles and maintain safety guidance while significantly reducing energy consumption compared to truly continuous operation. This periodic updating maintains the ability to detect and respond to dynamic obstacles without constant energy expenditure
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
This solution enhances passenger safety by providing real-time, intuitive visual and auditory cues to navigate around obstacles, reducing the risk of accidents and improving situational awareness for both passengers and drivers.
Implementation Method 1
highlighting the static obstacles with a projector mounted on the vehicle
Data Source
AI summary
A method of augmented projection for vehicle passengers includes sensing that the passenger is within, or about to enter, a drop zone, and sensing one or more static obstacles within the drop zone. The method further includes highlighting at least one of the static obstacles with a projector mounted on the vehicle.