Elevator Landing Control System with Automatic Position Adjustment
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Solution Overview
Problem
Elevators experience landing errors due to changes in load, causing step differences between the platform and elevator floors, which can lead to safety hazards and require manual adjustment by multiple workers, leading to inefficiency and continuous errors.
Innovation Solution
An elevator landing control system with a position adjusting device and sensor system that detects landing errors and tilts, allowing for automatic positional compensation through multiple position adjusting modules connected to an upper frame and rotating gear, ensuring precise leveling and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual adjustment by multiple workers is used to correct landing errors, then the step difference between platform and elevator floors can be corrected, but the process requires multiple workers and is inefficient
Solution Approach 1:
The system enables the elevator to automatically detect and correct its own landing position errors through the sensor device and position adjusting device, eliminating the need for manual intervention by multiple workers. The elevator performs self-diagnosis and self-correction of landing accuracy issues.
Solution Approach 2:
The sensor device continuously monitors the landing position and provides feedback to the control system. Based on this feedback, the position adjusting device automatically makes corrections to maintain accurate landing alignment between the elevator floor and platform.
2Manufacturing precision
If manual adjustment methods are used for landing errors, then landing accuracy can be corrected, but continuous errors occur and require repeated adjustments
Solution Approach 1:
The sensor device and position adjusting device operate continuously throughout elevator operation, constantly monitoring landing position and making real-time adjustments. This continuous automated correction prevents recurring errors that would require repeated manual adjustments.
Solution Approach 2:
The automatic detection and correction system enables the elevator to continuously self-correct landing errors without human intervention, ensuring sustained landing accuracy and preventing repeated errors that plague manual adjustment systems.
3Power
If a fixed pulley system with rope is used to move the elevator, then the elevator can be operated with reduced motor load, but landing errors occur due to changes in rope elasticity from load variations
Solution Approach 1:
The sensor device detects landing position errors caused by rope elasticity changes and provides feedback to the control system. The position adjusting device then compensates for these errors by adjusting the elevator car position, maintaining landing accuracy despite variations in rope elasticity from load changes.
Solution Approach 2:
The system dynamically adjusts the elevator car position based on detected landing errors, compensating for changes in rope elasticity characteristics. This parameter adjustment maintains precise landing alignment despite varying loads that affect rope physical properties.
4Device complexity
If no automatic position correction system is implemented, then the device complexity remains low, but safety hazards arise from step differences between platform and elevator floors
Solution Approach 1:
The sensor device and position adjusting device act as intermediary components between the elevator car and the control system. These intermediaries detect landing errors and facilitate automatic correction, eliminating safety hazards from step differences without requiring complex overall system redesign.
Solution Approach 2:
The automatic detection and correction system enables the elevator to self-monitor and self-correct landing position errors, eliminating safety hazards from step differences. This self-service approach enhances safety without proportionally increasing overall system complexity.
Data Source
AI summary
Disclosed herein is an elevator landing control system according to various embodiments of the present disclosure for achieving the above-described objects. The elevator landing control system includes an upper frame provided in an upward direction of a cage and provided with a main rope connected thereto, a position adjusting device connecting the cage and the upper frame, and a sensor device configured to detect a landing error between a floor of the cage and a floor of a platform, wherein the position adjusting device may adjust a distance between the upper frame and the cage based on the landing error detected from the sensor device to correct a height of the cage.