Removable Tactile Cues for Assistive POS Transactions
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional point of sale (POS) systems lack tactile cues, making it difficult for disabled users, especially those with vision or mobility impairments, to interact and complete transactions effectively.
Innovation Solution
A system that includes a display with removably coupled tactile cues and a processing system to map touch inputs to digital inputs using assistance maps, enabling secure and assistive POS transactions for disabled users by operating in both assistance and non-assistance modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional POS systems are used, then device simplicity is maintained, but usability for disabled users deteriorates due to lack of tactile cues
Solution Approach 1:
The POS system is segmented into distinct functional modules: a display component, a tactile cue component, and a processing system. This segmentation allows each component to perform its specific function independently while working together to solve the usability problem for disabled users without overwhelming system complexity.
Solution Approach 2:
Tactile cues serve as an intermediary element between the display and disabled users. These tactile cues provide physical guidance and feedback that bridges the gap caused by visual or mobility impairments, enabling disabled users to interact with the POS system effectively while maintaining a relatively simple overall system structure.
2Ease of operation
If assistance mode is activated, then usability for disabled users is improved, but processing time increases due to additional mapping operations
Solution Approach 1:
The system performs preliminary actions by pre-configuring assistance maps that define the relationship between tactile cues and digital inputs. This pre-processing allows the system to quickly translate user interactions without requiring complex real-time analysis, thereby reducing the time penalty associated with assistance mode activation.
Solution Approach 2:
The system dynamically switches between assistance mode and non-assistance mode based on user needs. The processing system can adjust its operational characteristics in real-time, applying assistance maps only when required, which optimizes processing speed for non-disabled users while providing necessary support for disabled users when activated.
3Adaptability or versatility
If tactile cues are removably coupled to display, then adaptability to different user needs is improved, but device complexity increases due to coupling mechanisms
Solution Approach 1:
The tactile cue component is designed as a separate, removable module that can be independently attached or detached from the display. This segmentation provides adaptability for different user needs while keeping the coupling mechanism simple and manageable, avoiding excessive system complexity.
Solution Approach 2:
The removably coupled design creates a dynamic system that can adapt its configuration based on user requirements. The tactile cues can be attached when assistive functionality is needed and removed when not needed, providing versatility without permanently increasing the base system complexity.
4Ease of operation
If assistance map is used to map touch inputs, then usability for disabled users is improved, but processing complexity increases
Solution Approach 1:
The assistance map implements local quality by creating specific, localized mappings between tactile cue positions and digital input values. Rather than requiring complex global processing, the system uses position-specific mapping rules that simplify the processing logic while maintaining high input mapping accuracy for disabled users.
Solution Approach 2:
The assistance map creates a simplified digital representation or copy of the tactile cue layout and its corresponding input values. This copied structure allows the processing system to efficiently translate physical tactile interactions into digital inputs without requiring complex interpretation logic, thereby reducing processing complexity while improving usability.
Data Source
AI summary
Embodiments of a system and method for assisting disabled users can include: a display configured to receive an input from the disabled user; a set of tactile cues proximal the display; and a processing system configured to: store an assistance map, and map the touch input to a digital input based on the assistance map.