Tactile Handrail Integrating Controls for Visually Impaired Lavatory Orientation
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Solution Overview
Problem
Visually impaired passengers face challenges in navigating and using lavatories on vehicles due to lack of effective orientation and operational assistance, particularly in hectic boarding situations and limited space, which can lead to stress and hygiene issues.
Innovation Solution
A vehicle guidance system featuring a tactile guiding sanitary-handrail with visually highlighted and manually touchable information along lavatory cabin walls, where all operating elements are integrated onto the handrail for easy access and operation, enhancing orientation and comfort for visually impaired passengers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If operating elements are distributed throughout the lavatory, then functionality is provided, but orientation difficulty increases for visually impaired passengers
Solution Approach 1:
The patent combines operating elements and tactile guidance information into a single integrated handrail structure. The handrail serves dual purposes: providing physical support for mobility and delivering tactile information about lavatory functions and orientation, thereby eliminating the need for separately distributed operating elements and information markers.
Solution Approach 2:
The handrail is designed as a multi-functional component that simultaneously provides mechanical support for physically impaired passengers and delivers tactile information for visually impaired passengers. This universal design approach allows a single structure to serve multiple user groups with different needs without requiring separate systems.
2Ease of operation
If a personal guide is used to assist visually impaired passengers, then orientation is improved, but service complexity and cost increase
Solution Approach 1:
The lavatory system provides self-service through autonomous tactile guidance that enables visually impaired passengers to navigate and operate lavatory functions independently without requiring personal guides. The tactile handrail communicates location and function information automatically, allowing users to orient themselves and access facilities autonomously.
Solution Approach 2:
The patent replaces the mechanical human-guidance system with an automated tactile information system embedded in the handrail. Instead of relying on human guides to provide directional information, the system uses tactile markers and Braille-like patterns on the handrail to convey orientation and operational information mechanically and autonomously.
3Volume of moving object
If lavatory space is minimized for vehicle constraints, then vehicle efficiency is improved, but orientation and operational difficulty increase for visually impaired passengers
Solution Approach 1:
The patent merges the functions of spatial orientation, physical support, and operational control into a single handrail structure. By concentrating all necessary information and controls along the handrail's length, the design maximizes the utility of limited lavatory space while maintaining full functionality for visually impaired users.
Solution Approach 2:
The patent transitions from two-dimensional wall-mounted controls and markers to a three-dimensional tactile handrail structure that extends through the lavatory space. This dimensional shift allows information and controls to be distributed along the longitudinal axis of the handrail, efficiently utilizing vertical and horizontal space while providing intuitive tactile feedback for users.
Data Source
AI summary
To provide improved guidance for visually impaired passengers in lavatory situations on-board of vehicles, a vehicle guidance system for guiding visually impaired passengers on-board a vehicle is provided. The vehicle guidance system includes an interior space on-board the vehicle with at least one lavatory with enclosing cabin walls, and at least one guiding sanitary-handrail. The guiding sanitary-handrail is mounted along at least a part of the enclosing cabin walls inside the lavatory. The guiding sanitary-handrail is provided as a tactile guide. Further, the guiding handrail is provided with visually highlighted information and manually touchable information, both related to cabin information. Still further, a plurality of operating elements for controlling functions of the lavatory is provided inside the lavatory, and at least a part of the operating elements is arranged on the guiding sanitary-handrail.