Touch-Operable Aerial Display for Height-Adaptive Intercom Access
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Solution Overview
Problem
Conventional intercom devices face challenges with operability, particularly for low-height individuals, and the use of touch operable aerial displays is hindered by power consumption issues.
Innovation Solution
The intercom device incorporates a touch operable aerial display with a control unit that adjusts the display position and angle based on user height, and a detection unit to enhance operability, while a control system prioritizes later operation inputs and only displays the aerial image when a user is detected, reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a stationary hardware device is used as an entrance slave device, then the device structure is simple and reliable, but it is difficult to operate for low-height persons such as children
Solution Approach 1:
The patent replaces the mechanical button press operation with a touchless aerial image interaction system. The aerial display shows visual guidance patterns that guide users to press specific locations in the air, eliminating the need for physical buttons at fixed heights and making the interface accessible to children and elderly users.
Solution Approach 2:
The patent transitions from a two-dimensional flat display to a three-dimensional aerial image display. The aerial image is projected at a height suitable for user interaction, creating a new spatial dimension for operation that accommodates users of various heights including children.
2Ease of operation
If a touch operable aerial display is always displayed, then operability is improved, but power consumption increases
Solution Approach 1:
The patent implements periodic display of the aerial image based on detection unit signals. The aerial display is activated only when a user approaches or interacts with the device, and turns off when no interaction is detected, significantly reducing power consumption while maintaining availability when needed.
Solution Approach 2:
The detection unit provides feedback about user presence and interaction to the control unit, which adjusts the aerial display state accordingly. This feedback mechanism enables the system to activate the power-intensive aerial display only when users are present and need to interact with the interface.
3Adaptability or versatility
If both hardware device and aerial display coexist, then functionality is enhanced, but control conflict may occur when both receive operation inputs
Solution Approach 1:
The control unit executes preliminary processing to determine the sequence and validity of operation inputs from both the hardware device and aerial display before executing the final control action. This preliminary validation resolves potential conflicts by establishing which input should take precedence based on timing and context.
Solution Approach 2:
The control unit is designed to universally handle operation inputs from multiple sources (hardware buttons and aerial display touch zones) through a unified processing mechanism, managing the complexity of coordinating different input methods while maintaining system versatility.
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 solution improves operability for diverse user heights and reduces power consumption by optimizing display positioning and prioritizing operation inputs, enhancing user experience and energy efficiency.
Implementation Method 1
a light source for emitting light for generating the aerial image
Implementation Method 2
an optical member for reflecting and transmitting the light and for forming an image in a predetermined space
Data Source
AI summary
A building entrance device (10B) of an intercom device includes a touch operable aerial display (100) for displaying an aerial image (G1, G2) toward a visitor (W1, W2), and a control unit (110). The touch operable aerial display (100) includes: a display device (101) for emitting light; an optical member (102) for reflecting and transmitting light so as to form the aerial image (G1, G2) in a predetermined space; and a detection unit (103) for detecting an operation input of the visitor (W1, W2) to the aerial image (G1, G2). The control unit (110) changes at least one from among a display position, a display angle of the aerial images (G1, G2), and a display mode of a call operation acceptance unit included in the aerial images (G1, G2).