Retrofit Keypad for Legacy Access Control Systems
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Solution Overview
Problem
Legacy access control systems face challenges such as decreased technical support, security vulnerabilities, limited functionality, and limited expandability, making it difficult for organizations to enhance security without replacing the entire system, which is costly.
Innovation Solution
The introduction of a retrofit keypad that can be integrated with existing access control systems to provide additional credential and security information through user interface keys and wireless communication, enhancing security features like anti-cloning protection and duress signals without requiring a full system replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complete access control system is replaced to adopt new technology, then security and functionality are improved, but implementation cost increases significantly
Solution Approach 1:
The patent segments the access control enhancement into a separate retrofit keypad module that can be added to existing systems. This module includes a portable device with credential storage, a keypad for additional input, and a processor that integrates with the legacy reader, allowing security improvement without replacing the entire system.
Solution Approach 2:
The retrofit keypad implements a nested structure where the portable device is housed within or integrated with the keypad assembly, which in turn interfaces with the existing reader. This nested arrangement allows multiple functional layers (credential storage, input interface, communication) to be combined in a compact form factor.
2Ease of manufacture
If legacy access control systems continue to be used, then implementation cost is reduced, but security vulnerabilities and limited functionality persist
Solution Approach 1:
The retrofit keypad acts as an intermediary device between the user and the legacy access control system. It provides modern security features (multi-factor authentication, credential storage) while interfacing with older readers through compatible protocols, thereby bridging the gap between legacy infrastructure and current security requirements.
3Reliability
If additional credential verification methods are added to legacy systems, then security is improved, but system complexity increases
Solution Approach 1:
The retrofit keypad is designed as a universal module that can be integrated with various legacy reader types through standard interfaces. It provides multiple functions including credential storage, keypad input, wireless communication, and integration with existing access control logic, reducing the need for multiple separate components.
Data Source
AI summary
Methods, devices, and systems are provided for retrofitting an existing access control system with one or more supplemental access devices that add access control capabilities to the existing system. A supplemental access device can be configured as a retrofit keypad. The retrofit keypad adds the ability for a user to provide additional credential and/or security information to an access control system via one or more interface keys on the retrofit keypad. The retrofit keypad may be a portable device such as an RFID device, wireless communication device, near field communication (NFC) device, etc., and/or combinations thereof.