Elevator Car Detection for Passenger Leaving Floor Identification
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Solution Overview
Problem
Existing elevator systems require detection devices to be installed at all hall levels to determine a passenger's leaving floor, which is inefficient and costly.
Innovation Solution
An elevator device with a detection device installed in the car, using an identification module to acquire identification information from passengers and a determination module to determine the leaving floor based on changes in this information and the car's stop position, reducing the need for hall-side detection devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If detection devices are installed at all hall levels to determine leaving floors, then leaving floor detection accuracy is improved, but device complexity and installation cost increase
Solution Approach 1:
The patent extracts the detection function from the hall-side infrastructure and relocates it to the moving car. By installing the detection device on the car rather than at each hall, the system determines leaving floors using only one detection device that moves with the car, thereby reducing the total number of detection devices from multiple hall-mounted units to a single car-mounted unit.
Solution Approach 2:
The car-mounted detection device performs multiple functions: it detects passengers boarding at each floor, tracks their movement throughout the car's journey, and determines leaving floors by analyzing changes in detection information. This single device replaces what would traditionally require multiple specialized detection devices at different locations.
2Reliability
If detection devices are installed at all hall levels, then passenger tracking capability is improved, but installation and maintenance costs increase
Solution Approach 1:
The patent extracts the detection function from the stationary hall infrastructure and relocates it to the moving car. By installing the detection device on the car rather than at each hall, the system determines leaving floors using only one detection device that moves with the car, thereby reducing the total number of detection devices from multiple hall-mounted units to a single car-mounted unit.
Solution Approach 2:
The car-mounted detection device autonomously performs passenger identification, tracking, and leaving floor determination without requiring external hall-mounted detection devices. The device uses its own detection information, combined with car position information from the control device, to independently determine where passengers leave, making the system self-sufficient and reducing infrastructure requirements.
3Loss of information
If hall-side user detection devices are used to store use history, then user information accuracy is improved, but the number of required detection devices increases
Solution Approach 1:
The car-mounted detection device performs multiple functions: it detects passengers boarding at each floor, tracks their movement throughout the car's journey, and determines leaving floors by analyzing changes in detection information. This single device replaces what would traditionally require multiple specialized detection devices at different locations.
Solution Approach 2:
The system continuously compares detection information at different floors to identify changes that indicate passenger leaving. By analyzing the feedback loop of detection information before and after each stop, the system accurately determines leaving floors and stores this use history without requiring multiple independent detection devices.
Data Source
AI summary
An elevator device according to this disclosure includes a detection device, an identification module, and a determination module. The detection device is provided to a car of an elevator, and detects detection information. The identification module repeatedly acquires identification information for identifying a passenger from the detection information detected by the detection device. The determination module determines a leaving floor of the passenger based on a change in the identification information acquired by the identification module and a floor on which the car stops.