Wearable Object Detection Device with Tactile Stimulator Fingers
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Solution Overview
Problem
Existing object detection systems for the visually impaired only notify users of the presence of objects without providing information on their distance or direction, limiting navigation and safety.
Innovation Solution
A wearable object detection device with adjustable stimulator fingers that notify users of detected objects through physical contact, using sensors to determine proximity and activate stimulators at specific contact points, and a stimulator control system to process information and activate alert systems based on object distance and location.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If multiple adjustable stimulator fingers are added to indicate distance and direction, then information completeness improves, but device complexity increases
Solution Approach 1:
The device segments information transmission by using multiple independent stimulator fingers (at least three) positioned at different locations on the frame. Each finger represents a specific spatial direction or distance zone, allowing the system to convey complex spatial information about obstacles through distributed tactile signals rather than a single centralized indicator.
Solution Approach 2:
The patent adds spatial dimensionality to the notification system by positioning stimulator fingers at multiple locations around the frame (front, side, rear positions). This transforms a one-dimensional presence detection into a multi-dimensional spatial mapping system where the location of activation on the frame corresponds to the direction and distance of the detected obstacle.
2Loss of information
If stimulator fingers are positioned at multiple contact points on the frame, then spatial awareness improves, but ease of operation deteriorates
Solution Approach 1:
Different regions of the frame are assigned different functional qualities - front positions indicate approaching obstacles, side positions indicate lateral obstacles, and rear positions indicate trailing obstacles. Each contact point has a specialized meaning, allowing the user to interpret spatial information based on which specific location is activated.
3Reliability
If the device provides detailed distance and direction information, then navigation safety improves, but device complexity increases
Solution Approach 1:
The patent replaces complex visual or auditory display systems with simple mechanical tactile stimulators. Instead of using screens, speakers, or complex interfaces, the system uses straightforward mechanical fingers that physically contact the user's face or head, providing intuitive spatial information through touch rather than requiring interpretation of visual or audio signals.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances user safety by providing detailed information on object proximity and direction, allowing for safer navigation and improved awareness of surroundings, even in multiple directions.
Implementation Method 1
a sensor that detects objects
Implementation Method 2
a stimulator that notifies the user of a detected object by contacting the user
Data Source
AI summary
When the sight impaired become mobile, they often bump their heads on unseen objects and/or hazards that could result in injury. The object detection device uses signal emitting proximity sensors that alert the user to unseen objects. The object detection device notifies the user of detected objects. Stimulators contact the user to warn the user that an object has been detected and the distance between the object and the user. Each stimulator contacts the user at a specific contact point. The stimulator finger contacting the user at a specific contact point informs the user of the distance between the user and the detected object.