Distraction Control for Safety Critical Operator Interfaces
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Solution Overview
Problem
Safety critical apparatuses, such as vehicles, face challenges in managing operator distraction during high-attention situations, as existing systems do not effectively adapt to changing operational conditions, potentially leading to dangerous malfunctions or accidents.
Innovation Solution
A system comprising safety relevant and comfort modules, with a distraction controlling device that estimates the operator's imposition based on safety status signals and adjusts comfort module interfaces to maintain an acceptable distraction threshold, deactivating distracting features when the threshold is exceeded.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If comfort functions are provided to enhance operator experience and provide stress relief, then operator comfort and entertainment are improved, but operator distraction increases which may lead to safety issues
Solution Approach 1:
The system dynamically adapts the user interface of comfort modules based on the current situation of the safety critical apparatus. The distraction controlling device continuously monitors operational parameters and operator state, and adjusts the visibility, audibility, or accessibility of comfort functions in real-time. This allows comfort functions to be available when safe but restricted when they would cause dangerous distraction.
Solution Approach 2:
The system implements feedback loops where the distraction controlling device receives information about the current operational state and operator condition, evaluates the distraction risk, and adjusts comfort module interfaces accordingly. This closed-loop control ensures that comfort functions do not compromise safety while maximizing operator well-being during safe operational phases.
2Adaptability or versatility
If multiple comfort modules with user interfaces are integrated into the safety critical apparatus, then operator comfort and information availability are improved, but device complexity increases
Solution Approach 1:
The distraction controlling device serves as a central control mechanism that manages multiple comfort modules through a unified interface. Rather than implementing separate control systems for each comfort module, the invention uses a single multi-functional device that can adapt any comfort module's user interface based on safety requirements, thereby reducing overall system complexity.
Solution Approach 2:
The distraction controlling device acts as an intermediary layer between the comfort modules and the operator. It receives requests from comfort modules to display or present information, evaluates the current safety context, and mediates by approving, modifying, or blocking the information presentation. This intermediary approach simplifies the architecture by centralizing control logic.
Data Source
AI summary
A safety critical apparatus comprises a set of safety relevant modules; one or more comfort modules having one or more user interfaces; and a distraction controlling device arranged to adapt at least one of the one or more user interfaces to a current situation of operation of the safety critical apparatus. The distraction controlling device comprises an operator imposition estimation unit arranged to receive a set of safety relevant status signals from the set of safety relevant modules and to provide a current acceptable-distraction threshold value depending on the set of safety relevant status signals; a distraction managing unit arranged to receive one or more comfort status signals from the one or more comfort modules and to provide a current distraction value depending on the one or more comfort status signals; and a decision unit arranged to receive the current acceptable-distraction threshold value and the current distraction value and to provide one or more deactivation decision signals for the one or more user interfaces of the one or more comfort modules when the current distraction value exceeds the current acceptable-distraction threshold value.