Elevator Passenger Detection via Mobile RFID
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Solution Overview
Problem
Elevator systems face economic inefficiencies due to the need for multiple stationary detection devices and permanent electromagnetic fields, which increase costs and maintenance requirements.
Innovation Solution
Implementing a radio network communication system between a mobile device carried by passengers and detection devices, using RFID transponders for activation and data transfer, reducing the number of stationary detection devices and eliminating the need for permanent electromagnetic fields.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple stationary detection devices are arranged in the access area to elevator doors, then reliable passenger detection is achieved, but system cost and maintenance requirements increase
Solution Approach 1:
Instead of having stationary detection devices emit electromagnetic fields to detect passengers, the invention inverts the approach by having mobile devices carried by passengers actively transmit identification codes to detection devices. This reduces the number of stationary detection devices needed while maintaining reliable detection.
Solution Approach 2:
The invention introduces mobile devices with transceivers as intermediaries between passengers and the elevator control system. These mobile devices carry identification codes and communicate with detection devices, replacing the need for multiple stationary detection devices and eliminating permanent electromagnetic fields.
2Reliability
If stationary detection devices constantly emit electromagnetic fields, then passenger identification is enabled, but energy consumption increases
Solution Approach 1:
Instead of continuously emitting electromagnetic fields, the system uses periodic activation where mobile devices transmit identification codes only when needed (upon approaching the elevator). The detection devices are activated on-demand rather than continuously, significantly reducing energy consumption while maintaining identification accuracy.
Solution Approach 2:
The invention replaces the electromagnetic field-based detection system with a radio communication system using transceivers. Mobile devices transmit identification codes via radio signals to detection devices, eliminating the need for permanent electromagnetic fields and reducing energy consumption.
3Area of stationary object
If multiple detection devices are installed, then comprehensive coverage is achieved, but installation and maintenance costs increase
Solution Approach 1:
The invention makes mobile devices multi-functional by combining identification code storage, transmission, and communication capabilities in a single device carried by passengers. This universal approach eliminates the need for multiple specialized stationary detection devices, reducing installation and maintenance costs while maintaining comprehensive coverage.
Solution Approach 2:
Instead of installing multiple physical detection devices throughout the area, the invention uses copies of identification codes stored on mobile devices carried by passengers. Each mobile device contains a copy of the passenger's identification code, allowing detection at multiple locations without requiring multiple physical detection devices.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution reduces costs by minimizing the number of detection devices and energy consumption, while allowing passengers to contactlessly and automatically trigger elevator calls, providing improved communication and ease of use with elevator status and call information.
Implementation Method 1
The detection device and the transceiver communicate with one another via a radio network
Implementation Method 2
a stationary detection device is arranged on each floor of the building. The detection device constantly emits an electromagnetic field. As soon as an information transmitter carried by the passenger enters the electromagnetic field of a detection device, the information transmitter is woken up as a result of the electromagnetic field
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention relates to an elevator installation (1) with at least one elevator car (2), with at least one elevator controller (4) and with at least one mobile device (6). The elevator controller (4) has at least one identification apparatus (3), and the mobile device (6) has at least one transmission/reception apparatus (63). The identification apparatus (3) and the transmission/reception apparatus (63) communicate with one another via a radio network. At least one alarm apparatus (5) is fitted close to the elevator installation (1). The mobile device (6) has a further transmission/reception apparatus (65). The alarm apparatus (5) and the further transmission/reception apparatus (65) communicate with one another via a radio network.