Pedestrian Alert Vision System With Adaptive Exterior Warnings
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Solution Overview
Problem
Existing vehicle systems fail to provide adequate warnings to vulnerable road users and drivers about potential collisions, often leading to blind spots and unnecessary noise pollution, especially in residential areas and when GPS connection is lost.
Innovation Solution
An advanced pedestrian alert system using image processing and sensors to detect pedestrians at unsafe distances, issuing auditory and visual warnings through speakers and strobe lights, with adjustable volume and frequency based on ambient noise and neighborhood characteristics, and strategically positioned cameras to enhance situational awareness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If conventional mirrors are attached to the exterior of the vehicle to enhance the driver's view, then the driver's visibility is improved, but the mirrors protrude away from the vehicle creating impact targets and do not provide a unified view from inside the cabin
Solution Approach 1:
The patent replaces conventional mechanical mirrors with an electronic camera-based vision system. Cameras are mounted on the vehicle and transmit video feeds to displays inside the cabin, eliminating protruding mechanical mirror structures that create impact targets while providing enhanced visibility through electronic imaging and processing.
2Loss of information
If multiple cross-view mirrors are attached to both sides of the vehicle to ensure clearance visibility, then the driver can see pedestrians on both sides, but the driver must look in opposite directions multiple times creating complexity and potential blind spots
Solution Approach 1:
The patent merges multiple camera feeds into a unified electronic display system inside the cabin. Instead of requiring the driver to physically turn and look at multiple separate mirrors, the system combines side-view, rear-view, and blind-spot camera feeds into integrated displays that present a comprehensive view of the vehicle surroundings in a single glance.
Solution Approach 2:
The patent transitions from two-dimensional mirror reflections to multi-dimensional electronic display presentations. The system uses multiple cameras positioned at different locations and angles, processing their feeds to create comprehensive visual representations of the vehicle's environment, including blind spots, presented on displays within the cabin.
3Loss of information
If pedestrian collision warning systems provide additional displays inside the cabin to eliminate blind spots, then driver awareness is improved, but such systems do not provide warning to nearby vulnerable road users
Solution Approach 1:
The patent introduces an intermediary communication system that bridges the vehicle and vulnerable road users. Audio speakers and visual indicators mounted on the vehicle exterior serve as intermediaries to transmit warnings to pedestrians and cyclists, enabling two-way communication between the vehicle safety system and road users.
4Loss of information
If geo fencing techniques are used to trigger alerts when the vehicle enters or exits designated areas, then driver and pedestrian awareness is improved, but making noise outside the vehicle may annoy pedestrians even if no one is in jeopardy and cause sound pollution in residential neighborhoods
Solution Approach 1:
The patent implements dynamic alert systems that adapt to real-time conditions. Audio alert activation is not fixed but dynamically determined based on detected vulnerable road users, vehicle speed, proximity to pedestrians, and environmental context. The system adjusts alert intensity and activation thresholds dynamically to provide necessary warnings while minimizing unnecessary noise in residential areas.
Solution Approach 2:
The patent incorporates feedback mechanisms where sensors continuously monitor the environment for vulnerable road users and collision risks. This feedback loop enables the system to intelligently determine when alerts are necessary versus when they would constitute unnecessary noise, adjusting geo-fence alert behavior based on real-time detection of pedestrians, cyclists, and other vulnerable road users.
Data Source
AI summary
An advanced pedestrian warning or alert system is a system for automotive vehicles is described herein in various embodiments. This system detects if a vulnerable road user, for example a pedestrian, is at an unsafe distance from the moving vehicle. If a pedestrian is too close to the vehicle when the vehicle is in motion, then the system will issue auditory and/or visual warnings to notify the pedestrian back to safety.