Rotatable Display Screen for Transaction Devices
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Solution Overview
Problem
Devices for processing monetary transactions, such as ATMs and gaming machines, often have rigidly installed screens that are difficult to read due to varying user heights and lighting conditions, leading to reduced user-friendliness and acceptance.
Innovation Solution
A device with a rotatable and tiltable screen, controlled by a motor controller, that adjusts its inclination based on user viewing angle and solar radiation angle, using a camera for user position detection and light sensors for radiation measurement, to minimize reflections and optimize readability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the screen is rigidly installed, then the device structure is simple, but the screen is difficult to read for users of different heights and in different lighting conditions
Solution Approach 1:
The screen is transformed from a rigidly installed static component to a dynamically adjustable component that can rotate and tilt automatically based on detected user position and lighting conditions, enabling optimal viewing angles for different users while maintaining manageable system complexity through automated control
Solution Approach 2:
The screen adjustment system operates autonomously by using cameras and sensors to automatically detect user position, calculate optimal viewing angles, and adjust the screen accordingly without manual intervention, thereby improving readability while avoiding complex user interaction mechanisms
2Ease of operation
If the screen is manually adjustable, then the user can optimize viewing angles, but the user-friendliness and acceptance are reduced due to additional operation requirements
Solution Approach 1:
The screen adjustment system operates autonomously by using cameras and sensors to automatically detect user position, calculate optimal viewing angles, and adjust the screen accordingly without manual intervention, thereby improving readability while avoiding complex user interaction mechanisms
Solution Approach 2:
The system continuously monitors user position through cameras and sensors, processes this information to determine optimal viewing angles, and automatically adjusts the screen accordingly, creating a closed-loop control system that enhances usability without requiring manual input
3Object-affected harmful factors
If the screen inclination is fixed, then the device structure is simple, but reflections from solar radiation make the screen difficult to read
Solution Approach 1:
The screen inclination is transformed from a fixed parameter to a dynamically adjustable one that automatically responds to detected solar radiation angles and user position, eliminating reflection interference while maintaining reasonable system complexity through automated control algorithms
Solution Approach 2:
The system pre-calculates optimal screen angles based on detected user position and environmental lighting conditions before adjustments are made, allowing the screen to be positioned optimally in advance to prevent reflection interference rather than reacting after problems occur
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
The screen can be automatically adjusted to ensure optimal viewing angles for users of different heights, reducing reflections and improving readability in various lighting conditions, thereby enhancing user experience and device acceptance.
Implementation Method 1
Viewing angle determination means for determining a viewing angle of a user located in front of the screen using images from a camera and a face recognition algorithm
Implementation Method 2
a sensor module includes light sensors for calibration, with which the intensity de during a period of time, for example a day r solar radiation can be measured
Implementation Method 3
the inclination of the screen is changed automatically, with the axes lying essentially in the plane of the screen surface, and with a motor controller for adjusting the screen, with the motor controller controlling a drive unit coupled to the screen
Data Source
AI summary
The invention relates to a device (10) for conducting monetary transactions, comprising a housing (11) and a display screen (12; 100) received by the housing (11). The display screen (12; 100) is configured rotatably and tiltably along at least one axis (3, 4, 5; 6, 7, 8; 20, 21, 22; 23, 24, 25; 26, 27) in such a manner that adjusting the tilt of the display screen (12; 100) can be carried out manually or automatically, wherein the axis (3, 4, 5; 6, 7, 8; 20, 21, 22; 23, 24, 25; 26, 27) lies essentially on the plane of the display screen surface (1).