Elevator Landing Door Automatic Closing Detection
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Solution Overview
Problem
Current elevator maintenance practices require manual testing of the automatic closing function of landing doors, which is labor-intensive and time-consuming, especially in high-rise and ultra-high-rise buildings.
Innovation Solution
A method and device for detecting the automatic closing function of a landing door, which involves applying a balanced driving force to the car door during the closing process of the landing door and determining if the landing door can be closed normally within a preset time period.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual testing of automatic closing function is performed, then detection reliability is ensured, but maintenance labor and time consumption increase significantly
Solution Approach 1:
The system performs self-testing of the automatic closing function without requiring manual intervention. The control device automatically controls the drive mechanism to apply balanced driving force to the car door, monitors the closing process, and determines whether the landing door closes normally within the preset time period, thereby eliminating manual testing while maintaining detection reliability
Solution Approach 2:
The patent replaces manual mechanical testing with an automated control system. The control device uses electronic control to manage the drive mechanism, sensors to monitor door position and closing status, and computer processing to determine test results, substituting the manual mechanical inspection process with an automated electromechanical system
2Productivity
If automated detection method is implemented, then maintenance productivity is improved, but device complexity increases
Solution Approach 1:
The control device performs multiple functions: it controls the drive mechanism to apply balanced driving force, monitors sensor signals from the closing process, determines whether the landing door closes normally, and can send detection reports. By consolidating these functions into a single control device, the system achieves automation without proportionally increasing overall system complexity
Solution Approach 2:
The patent introduces a control device as an intermediary between the drive mechanism and the monitoring system. This intermediary coordinates the automated testing process by controlling the application of balanced driving force, receiving sensor data, and determining test results, thereby simplifying the overall system architecture while enabling automation
Data Source
AI summary
A method and device for detecting an automatic closing function of a landing door, an elevator system and a non-transitory computer-readable storage medium. In the method for detecting the automatic closing function of the landing door, when a car of an elevator system stops at one of a plurality of floors, a car door of the car and a landing door associated with one of the plurality of floors are opened. Subsequently, during a closing process of the landing door, a drive mechanism of the elevator system is caused to apply a balanced driving force to the car door of the car. The balanced driving force corresponds to resistance to which the car door is subjected. Next, it is determined whether the associated landing door can be closed normally within a preset time period since the start of applying the balanced driving force to the car door.