Non-Visual Navigation Feedback System for Vehicle Operators
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Solution Overview
Problem
Modern navigation systems for vehicles lack non-visual indicators for machine conditions such as heading, pitch, yaw, and deviation from a desired path, forcing operators to divert attention from their surroundings to visual displays for feedback.
Innovation Solution
The implementation of non-visual feedback systems using sensors and controllers to generate auditory and haptic notifications, such as sounds and vibrations, that provide graduated feedback on changes in machine conditions, including direction and magnitude of changes, allowing operators to maintain focus on their surroundings while receiving guidance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If visual displays are used to provide navigation feedback, then information delivery is comprehensive, but operator attention is diverted from surroundings
Solution Approach 1:
The patent replaces visual display systems with auditory feedback systems. Speakers generate sounds based on sensor data about vehicle orientation and position, providing comprehensive navigation feedback through audio cues without requiring the operator to look at visual displays, thus eliminating operator distraction while maintaining complete information delivery.
2Object-affected harmful factors
If auditory feedback is implemented, then operator focus is maintained, but information detail may be reduced
Solution Approach 1:
The system implements continuous feedback loops where sensors monitor vehicle orientation and position, the processor compares this data against desired navigation parameters, and speakers provide real-time auditory feedback about deviations. This closed-loop feedback system maintains operator focus while delivering detailed navigation information through dynamic audio cues that reflect current vehicle state and guidance needs.
Solution Approach 2:
The patent varies auditory feedback parameters such as sound frequency, volume, and timing based on the magnitude and direction of navigation deviations. Larger deviations trigger more prominent audio cues, while smaller adjustments use subtler signals. This parameter modulation enables detailed navigation information to be conveyed through sound without overwhelming the operator, preserving both information detail and operator focus.
3Ease of operation
If graduated feedback is provided, then navigation guidance is enhanced, but system complexity increases
Solution Approach 1:
The auditory feedback system automatically adjusts its output based on real-time sensor data and processor analysis of navigation deviations. The system self-regulates the complexity and intensity of feedback cues according to the operational context, providing graduated guidance without requiring manual intervention or complex configuration. This automation enhances navigation guidance while keeping the control system manageable through intelligent self-adjustment.
Data Source
AI summary
A system for generating a non-visual notification of a machine condition includes a machine condition sensor configured to sense a machine condition. A notification generation controller is in communication with the machine condition sensor. The notification generation controller generates a notification according to the sensed machine condition. In a feedback configuration the notification generation controller compares an integral of a rate of change of the sensed machine condition with a threshold to trigger the generation of a notification. In a guidance configuration the notification generation controller uses the deviation of the machine condition from a guidance direction determined with a steering algorithm to control the generation of a notification. A non-visual notification generator is in communication with the notification generation controller and generates a non-visual notification based on the notification.