Elevator Call Device Dynamic Visual Sign Feedback
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Solution Overview
Problem
Current elevator call-out systems fail to clearly indicate the direction of elevator movement after stopping, leading to confusion among passengers, as the existing visual signs do not adequately differentiate between satisfied and unsatisfied call requests, and lack dynamic feedback to indicate service status effectively.
Innovation Solution
The implementation of an elevator call-out device with a control unit that switches visual signs from a normally lit state to a flashing state when the elevator stops at the requested floor, and back to an off state when the doors are closed, providing clear and dynamic feedback on the service status of the elevator call.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If traditional elevator call-out systems use static visual signs, then the system structure remains simple, but the ability to clearly indicate service status and differentiate between satisfied and unsatisfied call requests deteriorates
Solution Approach 1:
The patent applies dynamics by transforming static visual signs into dynamic indicators that change their display state (off, normally lit, flashing) based on elevator service status. The visual signs transition between different illumination modes to convey information about whether call requests are satisfied or pending, thereby resolving the contradiction between maintaining simple structure and providing clear service status indication.
Solution Approach 2:
The patent uses periodic action through flashing visual signs to indicate specific service states. When the elevator car stops at a landing station and the door is open, the visual sign flashes periodically to attract passenger attention and indicate that the call request is being serviced. This periodic display mode effectively communicates service status without requiring complex hardware changes.
2Loss of information
If visual signs remain in normally lit state, then the system operation is simple, but the ability to provide dynamic feedback on service status deteriorates
Solution Approach 1:
The patent implements feedback by having visual signs dynamically respond to elevator service status changes. The control unit receives feedback from the elevator controller about door status and call request satisfaction, then adjusts the visual sign state accordingly. This feedback mechanism ensures passengers receive real-time information about whether their call requests are being serviced, resolving the contradiction between simple operation and effective status communication.
3Loss of information
If the visual sign system uses multiple states (off, normally lit, flashing), then the service status indication improves, but the control system complexity increases
Solution Approach 1:
The patent applies local quality by assigning different display states to visual signs based on their specific function and the local service status they represent. Each visual sign corresponds to a specific call request and displays its state (off, normally lit, flashing) according to the local condition of that particular call request's service status, rather than using a uniform complex control logic for all signs.
Data Source
AI summary
A method for indicating a service status of an elevator, an elevator call-out device, and a computer-readable storage medium. Elevator call-out device includes a call-out button for inputting a request to cause an elevator car to move relative to a landing station where the elevator call-out device is located; a visual sign associated with a direction of movement of the elevator car indicated by the call-out button; a control unit configured to: switch the corresponding visual sign from an off state to a normally lit state upon receiving the request to cause the elevator car to move relative to the landing station where the elevator call-out device is located; switch the visual sign corresponding to the direction of movement of the elevator car after stopping to a flashing state in response to an event that the elevator car stops at the landing station where the elevator call-out device is located.