Smart Elevator System with Portable Terminal Detection
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Solution Overview
Problem
Conventional elevator systems in secure buildings require manual operation and lack efficient tracking of visitors, leading to inconvenience and potential security issues, especially when special visitors need to access specific floors.
Innovation Solution
A smart elevator system that allows online reservations, automatic elevator calling, and real-time tracking using a portable terminal with GPS and short-range communication, ensuring secure and convenient access to designated floors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If manual elevator operation is used, then device complexity is reduced, but waiting time increases and visitor tracking capability deteriorates
Solution Approach 1:
The system performs preliminary actions by requiring visitors to register in advance through a portable terminal before arriving at the building. The server system stores visitor information and pre-configures elevator access permissions, so that when the visitor arrives, the elevator can be automatically called and accessed without manual intervention, thereby reducing waiting time while maintaining manageable system complexity through upfront data collection.
Solution Approach 2:
The system enables self-service by allowing visitors to automatically call elevators and access designated floors using their portable terminals with stored unique keys. The portable terminal detector automatically recognizes the terminal and grants elevator access without requiring manual button pressing or security guard intervention, reducing both waiting time and operational complexity.
2Reliability
If security card issuance is required, then security control is improved, but visitor convenience deteriorates and time loss increases
Solution Approach 1:
The system creates a digital copy of security credentials by storing the portable terminal's unique key information in the server system during preliminary registration. This digital copy enables automatic authentication and elevator access control without requiring physical security cards, thereby maintaining security control while eliminating the time-consuming card issuance process and improving visitor convenience.
Solution Approach 2:
The system replaces the mechanical security card issuance and physical card presentation process with an electronic authentication system. The portable terminal detector uses electromagnetic communication to read the unique key from the portable terminal, substituting the mechanical card handling process with an electronic system that maintains security while dramatically reducing the time required for access control.
3Ease of operation
If manual floor selection is required, then ease of operation is reduced, but system automation complexity increases
Solution Approach 1:
The system performs preliminary action by storing the visitor's destination floor information during the initial registration process through the portable terminal. When the visitor arrives at the building, the server system already has the target floor data, enabling the elevator to automatically navigate to the correct floor without requiring the visitor to manually press floor buttons, thereby improving ease of operation while implementing automation in the background.
Solution Approach 2:
The system enables self-service by allowing the elevator to automatically select and navigate to the visitor's destination floor based on pre-stored information from the portable terminal. The visitor simply needs to approach the elevator, and the system automatically handles floor selection and door opening, greatly improving ease of operation while the automation manages the complex tasks of retrieving stored information and controlling elevator movement.
Data Source
AI summary
A smart elevator system includes: an elevator provided in a building having multiple floors; a controller configured to control the elevator; a portable terminal used by a person to make a reservation for using the elevator and including a communicator for long-range communication and short-range communication; a server system configured to receive the reservation for using the elevator from the portable terminal by communicating with the portable terminal and control an operation of the elevator through the controller according to the reservation; and a portable terminal detector provided near a door of the elevator and configured to obtain a unique key of the portable terminal through the communicator, when the portable terminal used to make the reservation approaches it.