Elevator Door Time Estimation via Passenger Terminal
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Solution Overview
Problem
Existing elevator systems face challenges in ensuring passengers have sufficient time to enter the allocated elevator car, especially when the call-giving location is far from the elevator lobby, leading to delayed arrivals and potential confusion due to limited maximum door times.
Innovation Solution
The method involves using a personal terminal device to register elevator calls, calculate and transmit the maximum door time to the passenger, allowing them to adjust this time and receive real-time updates, enabling passengers to better plan their arrival and reducing unnecessary rushing, while maintaining optimal transport capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the maximum door time is limited to maintain optimal transport capacity, then the productivity of the elevator system is improved, but the reliability of passenger service deteriorates when passengers are far from the elevator lobby
Solution Approach 1:
The system performs preliminary actions by notifying passengers in advance about the allocated elevator car and the maximum door time. This allows passengers to plan their route and prepare to reach the elevator lobby before the doors close, preventing service failures without extending the actual door time.
Solution Approach 2:
The system provides continuous feedback to passengers through the terminal device about the current door time status and elevator car allocation. This feedback loop enables passengers to adjust their movement speed and route to ensure timely arrival, maintaining service reliability without compromising transport capacity.
2Reliability
If the maximum door time is extended to accommodate distant passengers, then the reliability of passenger service is improved, but the productivity of the elevator system deteriorates
Solution Approach 1:
Instead of extending the door time, the system performs preliminary notification to passengers about the upcoming door closure. This gives passengers sufficient time to reach the elevator without actually holding the doors open longer, thus maintaining transport capacity while ensuring service reliability.
Solution Approach 2:
The terminal device acts as an intermediary between the elevator control system and the passenger. It delivers timing information and alerts to the passenger, enabling the passenger to self-regulate their arrival time without requiring the elevator system to extend door time.
3Ease of operation
If real-time information about maximum door time is provided to passengers, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The terminal device performs multiple functions: it serves as the passenger's personal identifier for allocation, the communication interface for receiving elevator status, and the display device for showing door time information. This multi-functionality provides comprehensive guidance without adding separate dedicated devices.
Solution Approach 2:
The system uses the passenger's own terminal device to deliver information, making the passenger responsible for monitoring the door time and managing their own arrival. This self-service approach simplifies the overall system architecture by eliminating the need for additional complex notification infrastructure.
Data Source
AI summary
The present invention discloses a method and an elevator system, in which a passenger gives elevator calls with a personal terminal device. An elevator car is allocated to the passenger on the basis of an elevator call, the maximum time from the moment of giving the call to the moment the doors of the allocated elevator car will close on the call-giving floor is calculated. The aforementioned maximum time is sent to the terminal device of the passenger for being presented to the passenger on the terminal device.