Networked Door Wayfinding for Invalid Credential Access
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Solution Overview
Problem
Existing building door systems face challenges in balancing security and user-friendliness, particularly in densely populated urban areas, where there is a need for improved access control and wayfinding assistance, especially when credentials are invalid.
Innovation Solution
A building door system with multiple operating and wayfinding devices connected via a communications network, allowing for cross-linking of individual door systems and a centralized building management system, which provides wayfinding information when credentials are invalid, and supports interaction with elevator controllers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple operating and wayfinding devices are distributed throughout the building, then user-friendliness and wayfinding assistance are improved, but device complexity and system configuration increase
Solution Approach 1:
The building door system is divided into multiple independent operating and wayfinding devices distributed throughout the building. Each device can function autonomously to provide local access control and wayfinding services, while also being capable of communicating with other devices and the central management system. This segmentation allows the system to scale with the building size without requiring a monolithic complex system.
Solution Approach 2:
Each operating and wayfinding device is designed with multi-functionality, serving both as an access control point and as a wayfinding information station. The devices can detect credentials, provide access control, display wayfinding information, and communicate with the central management system, eliminating the need for separate dedicated devices for each function.
2Reliability
If access control is enhanced with multiple door systems, then security is improved, but ease of operation and user convenience deteriorate
Solution Approach 1:
The system incorporates feedback mechanisms where the central management system receives information from multiple door systems about credential validity and access events. This feedback loop allows the system to learn from access patterns and provide intelligent responses, such as automatically granting access when credentials are valid or providing helpful wayfinding information when credentials are invalid, thus maintaining security while improving user convenience.
Solution Approach 2:
The operating and wayfinding devices are designed to autonomously detect credentials, verify access rights, and control door access without requiring manual intervention from security personnel. The system self-manages access control decisions based on stored credential information and access rules, reducing the burden on users while maintaining strong security.
3Ease of operation
If wayfinding information is provided at every door system, then user-friendliness is improved, but loss of information and system overhead increase
Solution Approach 1:
Wayfinding information is provided locally at each operating and wayfinding device, but the information displayed is customized to the local context. Each device provides wayfinding information relevant to its specific location and the user's current access status, rather than displaying all possible building information. This localized approach ensures that users receive helpful guidance without being overwhelmed by excessive information.
Data Source
AI summary
A building door system has operating and wayfinding devices, wherein each of the operating and wayfinding devices is assigned to a respective single-door system and can be connected to one another for communication with a communications network. Each operating and wayfinding device has a storage device storing an identifier, a control and processing device, a recognition device for detecting a credential of a person, and a display device, which has a user interface facing outdoors. When an invalid credential for the single-door system is detected, the control and processing device generates a request signal containing data of the credential and the individual identifier and feeds this into the communications network. The control and processing device receives a response signal via the communications network, extracts wayfinding information contained in the response signal and assigned to the credential, and activates the display device to display the wayfinding information on the user interface.