Vehicle User Situation Awareness Modification System
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Solution Overview
Problem
Existing driver assistance systems often fail to deliver timely warnings in partially or highly autonomous driving modes, leading to potential safety risks due to inadequate user situation awareness.
Innovation Solution
An apparatus and system that continuously monitor and modify user situation awareness by determining the necessary awareness level based on driving information, using sensors to assess user reactions and environmental data, and adjusting stimuli such as light, sound, or haptic feedback to ensure the user is alert and ready to take control within a desired time frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If driver assistance systems issue warnings to alert drivers about dangerous situations, then driver safety is improved, but warnings may not always be delivered on time in partially or highly autonomous mode
Solution Approach 1:
The system performs preliminary assessment of the driver's situation awareness level using detection signals (eye tracking, physiological sensors, steering behavior) before a dangerous situation occurs. This allows the system to proactively adjust the HMI to optimize awareness, rather than reactively issuing warnings after a hazard is detected. The preliminary action ensures the driver is mentally prepared and aware before critical events require immediate response.
Solution Approach 2:
The HMI is dynamically adjusted based on the detected situation awareness level. The system continuously monitors driver state and adapts interface characteristics (information presentation, alert intensity, interaction complexity) in real-time. This dynamic adaptation ensures optimal communication of critical information regardless of the driver's current mental state, improving warning effectiveness without fixed timing constraints.
2Reliability
If the HMI is adjusted based on the difference between current and desired awareness level, then situation awareness is improved, but system complexity increases
Solution Approach 1:
The system implements a closed-loop feedback mechanism where detection signals continuously monitor the driver's situation awareness level, the processing module compares this against desired levels based on driving conditions, and the HMI is adjusted accordingly. This feedback loop automatically maintains optimal awareness without requiring complex manual configuration or multiple independent systems, as the same processing module handles detection, assessment, and control.
Solution Approach 2:
The processing module serves multiple functions: it processes detection signals from various sensors, determines the current situation awareness level, selects appropriate HMI adjustments, and controls the user situation awareness modification module. This multi-functionality reduces overall system complexity by consolidating control logic into a single module rather than requiring separate dedicated systems for each function.
3Productivity
If artificial stimuli such as beeps or lamp blinks are used to provoke user response, then user reaction is improved, but user comfort deteriorates
Solution Approach 1:
Instead of using uniform artificial stimuli for all situations, the system applies localized and targeted adjustments to the HMI based on the specific detection signals and situation awareness level. The type, intensity, and nature of stimuli are customized to the driver's current state and the specific driving context, providing necessary activation without excessive or inappropriate stimulation. This local quality approach maintains comfort while improving reaction when needed.
Data Source
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AI summary
The invention relates to an apparatus, system and method for controlling a user situation awareness modification of a user of a vehicle. It comprises input module (101) configured to receive a first user detection signal (103) comprising information usable for determining a user situation awareness level. It also comprises a processing module (104) configured to determine a currently necessary situation awareness level by selecting one predefined situation awareness level from a plurality of predefined situation awareness levels based on driving information (102). The processing module is configured to determine a current user situation awareness level based on the information usable for determining the user situation awareness level. The processing module is configured to generate a control signal to control a user situation awareness modification module based on the currently necessary situation awareness level and the current user situation awareness level.