ATM Display Height Adjustment via Sensor Detection
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Solution Overview
Problem
Automated teller machines often have stationary display units of fixed height, making it difficult for users of varying heights to read and operate them, especially when used from vehicles with different seat heights.
Innovation Solution
The device adjusts the display of the graphic user interface to match the user's height by determining their position using sensors, such as cameras or card readers, allowing the user interface to be displayed in a portion of the screen that is adjustable based on the user's height, eliminating the need for mechanical adjustments to the display unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the display unit is made stationary with fixed height, then the device structure is simple and reliable, but users of varying heights cannot easily read and operate the display
Solution Approach 1:
The display unit transitions from a static fixed-height structure to a dynamic adjustable structure that can change its display position vertically. The motor-driven mechanism allows the display to move up and down along guide rails, adapting to different user heights while maintaining structural integrity through controlled mechanical motion.
Solution Approach 2:
The display system is divided into separable components: the display screen itself, the mounting bracket, the motor drive mechanism, and the guide rails. This segmentation allows the display portion to be independently adjusted without affecting the entire device structure, enabling height adaptation while keeping the base unit stable.
2Ease of operation
If the display unit is made mechanically adjustable, then users of different heights can easily read the display, but the device becomes failure-prone and cost-intensive
Solution Approach 1:
The display unit transitions from a static fixed-height structure to a dynamic adjustable structure that can change its display position vertically. The motor-driven mechanism allows the display to move up and down along guide rails, adapting to different user heights while maintaining structural integrity through controlled mechanical motion.
Solution Approach 2:
The system includes limit switches and control logic that prevent the display from moving beyond safe operational ranges. The motor is programmed to stop at predetermined upper and lower positions, preventing mechanical overload or damage before it can occur. This preemptive control approach maintains reliability while enabling adjustment.
3Ease of operation
If the display unit is made mechanically adjustable, then users of different heights can easily read the display, but the installation cost increases significantly
Solution Approach 1:
The display unit transitions from a static fixed-height structure to a dynamic adjustable structure that can change its display position vertically. The motor-driven mechanism allows the display to move up and down along guide rails, adapting to different user heights while maintaining structural integrity through controlled mechanical motion.
Solution Approach 2:
Complex manual mechanical adjustment mechanisms are replaced with an automated motor-driven system controlled by microprocessor and sensors. This substitution eliminates the need for manual intervention during installation and operation, reducing labor costs and simplifying the user interface while maintaining adjustment functionality.
4Loss of information
If the entire display surface is used for user interface, then all information is visible, but tall or short users may have difficulty reading from their respective positions
Solution Approach 1:
The display unit transitions from a static fixed-height structure to a dynamic adjustable structure that can change its display position vertically. The motor-driven mechanism allows the display to move up and down along guide rails, adapting to different user heights while maintaining structural integrity through controlled mechanical motion.
Solution Approach 2:
Instead of uniformly using the entire display surface for all users, the system dynamically adjusts which portion of the display is most accessible to each user based on their height. The display can be positioned at different vertical levels to optimize viewing angles and ensure all information remains visible while being easily readable by users of varying heights.
Data Source
AI summary
The invention relates to a device (10) for handling banknotes that comprises a display unit (20) with a display surface (22) for displaying at least one graphic user interface (28) to a user of the device (10). The user interface (28) is only displayed in a portion (32 to 36) of the display surface (22), whereas this portion (32 to 36) is adjustable depending on the position of the user relative to the display surface (22).