Telescopic Display Height Control for Wheelchair and Child Access
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Users, especially those on wheelchairs and children, face difficulties in quickly and accurately adjusting large touch displays to suitable heights due to the complexity and inconvenience of existing adjustment mechanisms.
Innovation Solution
A display height adjusting device equipped with a telescopic trolley, an operation circuit, a motor, and a microcontroller, which uses a look-up table to calculate and adjust the display height based on user input or detected height values, ensuring the display is set to a comfortable height automatically.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual or electrical adjustment of telescopic trolley length is used to change display height, then the display can be positioned at different heights, but users cannot quickly and accurately adjust the display to a suitable height
Solution Approach 1:
The system pre-calculates and stores optimal display heights for different user heights in a look-up table before actual use. When a user inputs their height, the system quickly retrieves the pre-determined optimal height setting, eliminating the need for users to manually adjust and repeatedly trial different heights. This preliminary preparation of height settings enables both quick and accurate display positioning.
2Ease of operation
If manual adjustment mechanism is used, then the structure remains simple, but users especially on wheelchair and children find it difficult and inconvenient to adjust
Solution Approach 1:
The patent replaces the purely mechanical manual adjustment system with an automated electromechanical system. A motor drives the telescopic trolley to extend or retract, automatically positioning the display at the optimal height based on user input. This substitution eliminates the need for users to physically manipulate complex mechanical adjustment components, making the system easy to operate while accepting increased device complexity through the addition of motorized control.
3Reliability
If repeated manual adjustments are made to achieve suitable height, then the display can eventually be positioned correctly, but user discomfort increases and efficiency decreases
Solution Approach 1:
The system incorporates a look-up table that stores pre-calculated optimal height settings based on user height parameters. When the user inputs their height information, the system retrieves the corresponding optimal display height and automatically positions the display at that exact setting. This feedback mechanism ensures accurate positioning on the first attempt, eliminating the need for repeated adjustments and improving adjustment efficiency while maintaining reliable positioning accuracy.
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
Enables quick and accurate adjustment of display height, reducing user discomfort and the need for repeated adjustments, providing a better viewing experience for various users.
Implementation Method 1
a motor and a microcontroller... The motor is coupled to the telescopic trolley for adjusting the length of the telescopic trolley according to the control signal
Data Source
AI summary
A method to adjust the height of a display is provided. One terminal of the telescopic trolley is connected to a first surface of the display and is separated from the lower edge of the display by a first distance. The lower edge of the display is away from the ground by a second distance. The method includes: obtaining a first height value indicating a user's height, an eye height or a shoulder height, searching for a second height value corresponding to the first height value in the look-up table according to the first height value, calculating the sum of the first distance and the second distance, comparing the sum with the second height value to obtain a comparison result, and adjusting the length of the telescopic trolley according to the comparison result, so that the sum is equal to the second height value.