Elevator Light Projection for Traffic Guidance Visibility
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Solution Overview
Problem
Elevator display systems in crowded or architecturally valuable buildings face challenges due to impaired visibility, restricted viewing angles, and the need for complex and costly renovations to update or relocate displays, which hinders efficient traffic guidance and modernization.
Innovation Solution
Implementing a method and system that uses light sources to illuminate visible objects for guiding traffic, which are controlled by an operating panel to determine the current occupancy and destination of the elevator car, allowing for adaptable and efficient traffic guidance without the need for display device installations, by emitting light from a remote location.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If traditional display devices are mounted on walls in elevator lobbies, then traffic guidance information can be displayed, but visibility is impaired by crowds and architectural structures, and viewing angles are restricted
Solution Approach 1:
The patent transitions from two-dimensional wall-mounted displays to three-dimensional spatial light projection. Light sources are positioned in the elevator car and project illuminated objects (arrows, floor numbers) onto the lobby environment, utilizing vertical and horizontal space to create visible guidance elements that float above the crowd rather than being confined to a single wall plane.
Solution Approach 2:
The patent introduces light as an intermediary medium between the elevator system and passengers. Instead of directly displaying information on fixed panels, the system uses light sources to illuminate objects that serve as visual mediators, projecting guidance information through the air space to make it accessible from multiple angles and positions.
2Productivity
If display devices are relocated or renewed in architecturally valuable buildings, then traffic guidance can be improved, but renovation work and authorization delays increase
Solution Approach 1:
The patent replaces mechanical display devices (physical panels mounted on walls) with an optical system. Light sources and controllable illuminated objects substitute for traditional display hardware, eliminating the need for physical installation and renovation while maintaining traffic guidance functionality.
Solution Approach 2:
The patent creates a universal traffic guidance system that can be deployed in any elevator lobby without requiring architectural modifications. The light-based system adapts to existing building structures and can be installed in various locations (elevator car, lobby ceiling, wall) without needing special authorization for structural changes.
3Loss of information
If display information is increased to provide comprehensive traffic guidance, then guidance completeness improves, but the viewable area constraint limits what can be displayed
Solution Approach 1:
The patent uses spatial projection to display multiple pieces of information simultaneously in three-dimensional space. Instead of crowding text and symbols onto a limited two-dimensional panel, the system projects illuminated objects (arrows indicating direction, floor numbers, elevator position) that can be distributed throughout the lobby volume, effectively increasing the display area.
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
This solution enhances visibility and adaptability of traffic guidance in elevator lobbies, improving efficiency and reducing renovation costs by allowing light sources to be installed in non-intrusive locations, thus addressing the limitations of traditional display systems.
Implementation Method 1
one or more light sources, the method comprising defining visible objects for guiding traffic of the elevator arrangement, obtaining a destination landing zone by the operating panel, determining a current occupancy and current destination landing zone of the elevator car, and setting the light sources to illuminate at least one of the defined visible objects
Data Source
AI summary
A method is provided for displaying information in an elevator arrangement including an elevator car that is movable, as controlled by an operating panel, between landing zones that communicate traffic to and from the elevator car through a doorway, and one or more light sources. In the method, visible objects are defined for guiding traffic of the elevator arrangement. A destination landing zone is obtained by the operating panel. A current occupancy and current destination landing zone of the elevator car are determined. The light sources are set to illuminate at least one of the defined visible objects on a remote surface on the basis of the determined current occupancy and current destination landing zone of the elevator car and the destination landing zone obtained by the operating panel.