Vehicle Window Projection for Occupant Privacy Deterrence
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Solution Overview
Problem
Existing vehicle systems lack effective means to provide privacy and deter unwanted interactions by projecting images and audio on windows, especially when occupants do not wish to engage with external individuals, while also ensuring security and environmental resilience against external interference.
Innovation Solution
A system comprising a camera, projector, computer, external microphone, and speaker, which projects images and plays modified audio on the vehicle window to create a deterrent presence, using a risk assessment algorithm to decide on the projection and audio playback based on external person recognition, risk scores, and occupant profiles, while being resistant to environmental interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a projector and audio system are added to the vehicle window, then privacy protection and deterrent capability are improved, but device complexity increases
Solution Approach 1:
The vehicle window is transformed into a multi-functional element that serves both as a transparent barrier and as a display surface for projector images and audio output. This allows the window to provide privacy protection and deterrent capability without adding separate external components, thereby improving reliability while minimizing the increase in device complexity.
2Reliability
If the projector projects images on the window, then occupant privacy is improved, but illumination intensity outside the vehicle may interfere with the projection quality
Solution Approach 1:
The projector operates in periodic pulses rather than continuously, projecting images only during specific time intervals when privacy protection is needed. This periodic operation allows the projection to occur in bursts that can overcome ambient light interference, maintaining privacy protection reliability while reducing the overall impact of external illumination intensity on projection quality.
Solution Approach 2:
The projection system dynamically adjusts its operation based on environmental conditions such as ambient light levels. The projector can modulate its brightness, timing, and duration of operation to optimize privacy protection under varying illumination conditions, thereby maintaining effective privacy protection while adapting to external light interference.
3Reliability
If the system plays modified audio through external speakers, then deterrent capability is improved, but the system becomes more vulnerable to environmental interference and damage
Solution Approach 1:
The window itself serves as an intermediary medium that transmits both visual projections and audio signals from the interior to the exterior environment. By using the window as the output medium rather than external speakers, the system maintains deterrent capability through audio playback while protecting internal components from environmental interference and physical damage.
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 effectively provides privacy and security by projecting a deterrent image and audio on the vehicle window, enhancing occupant safety and privacy by deterring unwanted interactions and resisting environmental interference.
Implementation Method 1
a projector positioned to project on the window
Implementation Method 2
a speaker directed externally to the vehicle and communicatively coupled to the computer
Data Source
AI summary
A system includes a camera aimed externally to a vehicle, a window of the vehicle, a projector positioned to project on the window, and a computer communicatively coupled to the camera and the projector. The computer is programmed to, upon receiving data from the camera indicating a first person outside the vehicle, instruct the projector to project an image on the window depicting a second person inside the vehicle.