Elevator Car Interval Auto-Setting via Learning Mechanism
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Solution Overview
Problem
Conventional elevator devices require manual setting of the initial interval between the upper and lower cars, which is labor-intensive, and may lose this information during power failures, leading to inaccurate interval adjustments upon restoration.
Innovation Solution
An elevator device with memory, detection, and adjustment mechanisms to automatically set and maintain the interval between the upper and lower cars, including a learning process to establish the initial interval in case of lost information, using a car interval change quantity detection device and adjustment means to synchronize the cars.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If manual setting of initial car interval is used, then installation process is simple, but installation labor is increased and initial value setting is troublesome
Solution Approach 1:
The learning means automatically detects the initial car interval between the upper car and lower car during installation, eliminating the need for manual setting. The system serves itself by autonomously measuring and storing the interval data, thereby reducing installation labor while maintaining simplicity.
Solution Approach 2:
The patent replaces manual mechanical measurement and setting processes with an automated detection system. The learning means uses sensors and control circuits to automatically measure the car interval, substituting human operators with an automated system that increases installation efficiency without compromising ease of installation.
2Measurement precision
If car interval information is stored in memory, then adjustment accuracy is maintained, but information loss during power failure occurs
Solution Approach 1:
The learning means automatically detects and stores the initial car interval information in memory means before normal operation begins. This preliminary action ensures that the data is ready for use and reduces the risk of information loss by having a pre-established baseline that can be restored after power failures.
Solution Approach 2:
The system continuously monitors the actual car interval during operation and compares it with the stored initial value. When deviations are detected or after power restoration, the learning means can re-detect and update the interval information, creating a feedback loop that maintains both accuracy and reliability over time.
3Productivity
If power failure occurs, then operation interruption happens, but loss of car interval information reduces adjustment accuracy after restoration
Solution Approach 1:
The system prepares for power failures by automatically learning and storing the initial car interval information in memory before interruptions occur. This cushioning measure ensures that even if power is lost, the critical measurement data is preserved, allowing the system to quickly restore accurate interval adjustment without compromising precision after restoration.
Solution Approach 2:
After power restoration, the learning means automatically re-detects and updates the car interval information without requiring manual intervention. This self-service capability ensures both operational continuity and maintenance of measurement precision, as the system autonomously recovers from power failures while preserving accuracy.
Data Source
AI summary
An elevator device automatically setting a current value of an interval between upper and lower cars vertically movable inside a car frame, including: a moving mechanism vertically moving the cars; a memory storing a current interval between the cars; a car interval change quantity detector detecting a change quantity of the interval between the cars; an adjustment mechanism adjusting the interval between the cars based on the stored car interval and the detected change quantity of the interval; an initial car interval detector detecting that the interval between the cars has reached an initial car interval; and a learning mechanism causing the moving mechanism to vertically move the cars until the initial car interval detector detects that the interval between the cars has reached the initial car interval to learn the car interval when the car interval is not stored in the memory, which is then stored in the memory.