Elevator Bluetooth Passenger Flow Tracking
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Solution Overview
Problem
Existing elevator systems face inefficiencies in automatically determining passenger flow and invalid elevator calling requests due to uncertainty in passenger movements, leading to unnecessary elevator dispatches.
Innovation Solution
A passenger flow tracking system utilizing a Bluetooth module in the elevator car to broadcast signals and determine passenger entry and exit based on responses from personal mobile terminals, which then adjusts elevator calling requests accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If automatic elevator calling technology is used to eliminate input operations, then ease of operation is improved, but reliability deteriorates due to uncertainty in passenger actions causing invalid elevator calling
Solution Approach 1:
The system uses Bluetooth modules to continuously detect passenger presence and provides feedback to the control system. When a passenger enters or exits the elevator, the system receives real-time feedback through Bluetooth signal changes and adjusts elevator calling requests accordingly, preventing invalid calls when passengers are not actually present
Solution Approach 2:
The system performs preliminary detection of passenger presence using Bluetooth modules before generating elevator calling requests. By detecting passengers in advance through Bluetooth signals and tracking their presence status, the system prepares accurate passenger flow information before making calling decisions, avoiding invalid calls
2Measurement precision
If Bluetooth modules are installed in elevator cars to track passenger flow, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The Bluetooth module serves multiple functions: it detects passenger presence, tracks passenger flow in and out of the elevator, and provides location information. By making the Bluetooth module multi-functional, the system achieves precise passenger flow measurement without adding separate dedicated devices for each function, thereby limiting the increase in device complexity
3Productivity
If passenger flow tracking is implemented to reduce invalid elevator calls, then productivity is improved, but loss of information increases due to potential failure to detect passenger presence
Solution Approach 1:
The system implements redundant Bluetooth detection mechanisms and continuous monitoring to cushion against potential signal loss or detection failures. By having backup detection methods and continuous tracking, the system compensates for possible information loss, ensuring accurate passenger flow data is maintained for productivity improvements
Data Source
AI summary
The present invention relates to tracking of a passenger flow in an elevator car. A passenger flow tracking system for an elevator car according to the present invention includes: a first Bluetooth module installed in the elevator car, the first Bluetooth module being configured to broadcast a first Bluetooth signal that can substantially cover the interior of the elevator car and receive a response fed back by a personal mobile terminal carried by a passenger inside the elevator car; and a passenger flow determining unit configured to at least determine, based on a change in the received response, that the passenger leaves and/or enters the elevator car.