Building Access Control Using Segmented Short-Range and Long-Range Identification
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Solution Overview
Problem
Existing access control systems for buildings, particularly in elevator systems, face issues such as the need for close-range identifier reading, security risks from long-range identifiers, complexity, high costs, and inflexibility, especially when dealing with temporary or dynamic access rights.
Innovation Solution
A method and system utilizing both short-range and long-range identification points with personal terminal devices to activate and manage access rights, allowing service requests to be made at a distance, reducing the need for conventional call-giving appliances and enabling decentralized access control, with features like user interface configuration based on access rights and monitoring of terminal device positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If long-range identifiers are used for service requests, then user convenience is improved, but security risks increase due to potential hijacking of access rights
Solution Approach 1:
The system divides the identifier into two separate components: a long-range identifier for convenient distance-based service requests and a short-range identifier for secure access control validation. This segmentation allows each identifier to serve its specific function optimally without compromising security
Solution Approach 2:
The short-range identifier acts as an intermediary security layer that must be physically present at the reader for access validation. This intermediary component mediates between the convenient long-range identifier and the security requirements, preventing hijacking while maintaining user convenience
2Object-affected harmful factors
If short-range identifiers are used for service requests, then security is improved, but user convenience deteriorates due to the need for close proximity to readers
Solution Approach 1:
The identifier is segmented into long-range and short-range components, allowing the long-range part to handle convenient distance-based communication while the short-range part ensures secure validation, thus resolving the convenience-security tradeoff
Solution Approach 2:
The system merges both long-range and short-range identifier functionalities into a single integrated access control solution, combining the advantages of distance-based convenience with close-proximity security validation
3Reliability
If centralized access control systems are used, then access control capability is improved, but system complexity and cost increase
Solution Approach 1:
The system extracts the security validation function from the centralized access control system and places it in the terminal device itself. The terminal device independently validates the short-range identifier, removing the need for complex centralized validation infrastructure
Solution Approach 2:
The terminal device performs self-validation of access rights by independently checking the short-range identifier against stored access control data, eliminating the need for continuous centralized system intervention and reducing overall system complexity
4Reliability
If conventional call-giving appliances with pushbuttons are used, then reliability is improved, but device complexity and maintenance difficulty increase
Solution Approach 1:
The system replaces mechanical pushbutton call-giving appliances with electronic terminal devices that use wireless communication. This substitution eliminates mechanical wear and tear, improving reliability while reducing maintenance requirements through solid-state electronics
Data Source
AI summary
The present invention presents a solution for limiting access rights in a building, which building contains a conveying system, an access control system connected to the conveying system, which access control system comprises at least one short-range identification point and at least one long-range identification point and in which access control system passengers have a personal terminal device for giving service requests to the conveying system. A terminal device is taken into the operating area of a short-range identification point, the access rights connected to the service requests of the terminal device are activated, the terminal device is taken into the operating area of a long-range identification point and a service request generated with the terminal device is transmitted to the conveying system, if the access right connected to the service request is valid on the basis of the activation.