Automatic Elevator Calling via Wireless Signal Detection
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Solution Overview
Problem
Existing elevator systems require manual operation for calling and registering floors, which can be difficult for passengers with disabilities or those carrying items, leading to ineffective elevator calling and reduced user experience.
Innovation Solution
An automatic elevator calling system using wireless signal modules in elevators and mobile terminals to determine passenger movement and establish connections for hands-free operation, including Bluetooth Low Energy modules for communication, allowing passengers to call and register floors automatically based on signal strength and movement detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual button pressing operation is used for elevator calling, then the operation mode is simple and reliable, but it becomes difficult for passengers with disabilities or those carrying items, reducing ease of operation
Solution Approach 1:
The system enables automatic elevator calling by detecting passenger presence and movement through wireless signal modules, eliminating the need for manual button pressing. The elevator system serves itself by automatically identifying when a passenger wants to enter and which floor they intend to go to, based on signal strength changes and movement patterns.
Solution Approach 2:
The patent replaces the mechanical button pressing system with a wireless signal-based detection system. Bluetooth Low Energy modules and wireless signal modules detect passenger presence and movement through electromagnetic signals, substituting the mechanical interaction between finger and button with a contactless electromagnetic detection mechanism.
2Ease of operation
If automatic elevator calling through smart mobile terminals is implemented, then ease of operation is improved, but ineffective elevator calling may be easily caused due to the uncertainty of action or movement of passengers
Solution Approach 1:
The system continuously monitors wireless signal strength changes and passenger movement patterns to provide feedback on whether the passenger has successfully entered the elevator. The system adjusts its calling status based on real-time detection of signal strength transitions and movement confirmation, ensuring accurate identification of passenger intent.
Solution Approach 2:
The wireless signal modules broadcast elevator location and traveling direction information in advance before the passenger needs to call. The system prepares the calling status by detecting passenger approach through signal strength changes before the actual calling action occurs, enabling proactive rather than reactive elevator calling.
3Measurement precision
If wireless signal modules broadcast continuous location and traveling direction information, then automatic detection of passenger movement is enabled, but energy consumption increases
Solution Approach 1:
The wireless signal modules broadcast information periodically rather than continuously, reducing energy consumption while maintaining detection accuracy. The system transmits elevator location and traveling direction information at regular intervals, allowing passenger movement detection through comparison of periodic signal strength measurements without requiring constant transmission.
Data Source
AI summary
The present invention relates to the determination of the movement of a passenger relative to an elevator car and belongs to the field of elevator intelligent control technologies. The present invention acquires information about the movement of a passenger relative to an elevator car, wherein the information about the movement of the passenger relative to the elevator car is determined based on a change in the signal strength of a first wireless signal received by a personal mobile terminal carried by the passenger and a change in first floor information and/or traveling direction information.