Pedestrian Warning Signals for Obstructed Cross-Vehicle Detection
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Solution Overview
Problem
Advanced driver assistance systems primarily focus on alerting vehicle occupants within the vehicle, failing to effectively warn external road users, such as pedestrians or cyclists, of potential hazards, especially when their line of sight is obstructed by another vehicle.
Innovation Solution
A warning system that detects road users on both sides of an object, such as a vehicle, and signals their presence to each other using visual and acoustic signals, with a processing unit determining the likelihood of collision and activating the system only when necessary, even when the vehicle is in a parked or low-power mode.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the warning system operates continuously in full power mode to detect road users, then detection reliability is improved, but energy consumption increases
Solution Approach 1:
The warning system dynamically adjusts its operational state based on detected conditions. The control unit transitions the warning system between low-power mode and full power mode, optimizing the balance between detection reliability and energy consumption. When a first road user is detected, the system activates full power mode to enable detection of second road users, otherwise it maintains low-power mode.
Solution Approach 2:
The system performs preliminary detection of the first road user before activating the more energy-intensive full power mode detection for second road users. This preliminary action allows the system to conditionally activate high-power detection only when necessary, avoiding continuous high energy consumption while maintaining detection reliability when needed.
2Use of energy by moving object
If the warning system activates full power detection mode only when first road user is detected, then energy consumption is reduced, but detection coverage may be insufficient
Solution Approach 1:
The control unit acts as an intermediary that manages the transition between different detection modes. It monitors the detection status of the first road user and conditionally activates the full power mode for detecting second road users, ensuring that detection coverage is sufficient while minimizing energy consumption through intelligent mode switching.
3Reliability
If the system signals detection to both road users, then safety warning effectiveness is improved, but system complexity increases
Solution Approach 1:
The warning system uses universal signaling components (lights, sounds) that can communicate with multiple road users simultaneously. The same signaling infrastructure serves both the first and second road users, achieving multi-functionality without proportionally increasing system complexity. The control unit manages signaling to multiple targets using the same hardware resources.
Data Source
AI summary
Process for warning a road user of another road user's presence on another side of an object situated therebetween, including: detecting a first road user on a first exterior side of the object, detecting a second road user on a second exterior side of the object, different from the first side, the first and second road users being detected to be moving or ready to move relative to the object; and signaling detection of the second road user to the first road user when the first and second road users are detected concurrently. Warning system including means for carrying out same. Vehicle including such a warning system and/or configured to implement such a process. Computer program including instructions which, when the program is executed by a computer, cause the computer to execute such a process. Computer-readable medium, including instructions of same.