Elevator Speed Indicator with High-Speed Zone Display
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Solution Overview
Problem
Passengers in an elevator or at a landing cannot reliably determine if the elevator is operating in high-speed mode during high-speed operations.
Innovation Solution
A display device for an elevator with an indicator that displays speed information, featuring a speed display area with a high-speed zone and a common speed zone, where the speed display bar enters the high-speed zone only during high-speed operations, and differs in color from the common speed zone, allowing passengers to identify the operation mode.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high-speed operation mode is used to reduce travel time, then productivity is improved, but passengers cannot reliably determine the operation mode
Solution Approach 1:
The patent uses color changes in the speed display indicator to communicate operation mode information. When the elevator operates in high-speed mode, the speed display bar changes color or enters a distinct high-speed zone with different color characteristics, allowing passengers to visually identify the operation mode without adding complex display devices.
Solution Approach 2:
The patent adds a visual dimension to speed display by creating distinct zones (common speed zone and high-speed zone) within the speed display area. The speed reflecting portion's position within these zones provides additional information about operation mode beyond just the numerical speed value, enabling passengers to distinguish high-speed operation through spatial positioning in the display.
2Device complexity
If simple speed display is used, then device complexity is reduced, but passengers cannot identify high-speed operation mode
Solution Approach 1:
The patent segments the speed display area into distinct zones: a common speed zone and a high-speed zone. This segmentation allows the existing speed display mechanism to convey additional information about operation mode by showing which zone the speed reflecting portion enters, without requiring a completely new display system.
Solution Approach 2:
The existing speed display device is made multi-functional by incorporating zone indicators. The same speed display bar that shows velocity magnitude also indicates operation mode by its position within the segmented display area, eliminating the need for separate indicators while providing comprehensive information.
Data Source
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AI summary
An operation mode of an elevator is switchable between a normal operation mode for controlling a speed of a car according to a set speed pattern that has been previously set and a high-speed operation mode for controlling the speed of the car according to a generated speed pattern different from the set speed pattern. A display device for the elevator is provided to at least any one of a landing and the car. The display device includes an indicator for displaying information of the speed of the car in a speed display area. In the speed display area, a speed reflecting portion moving according to the speed of the car is displayed. The speed display area is set with a high-speed zone that the speed reflecting portion may enter only when the operation mode is the high-speed operation mode and a common speed zone in which the speed reflecting portion is present when the speed of the car is lower than a speed in the high-speed zone. When the speed reflecting portion is present at least in the high-speed zone, a boundary between the high-speed zone and the common speed zone is indicated.