Access Control Device Proximity Notification
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Solution Overview
Problem
Access control devices often rely solely on mobile devices for authentication, leading to issues when users inadvertently leave their devices behind, resulting in locked-out situations in industries like hotels and real estate, causing operational inefficiencies.
Innovation Solution
An access control device equipped with a detection sensor, communication module, and processor that detects status events and determines if the mobile device is within a threshold distance, triggering notifications and maintaining the lock in an unlocked position if the device is not present, using signal strength and MEMS sensors to determine proximity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If access control devices rely solely on mobile devices for authentication, then authentication security is improved, but user accessibility deteriorates when devices are left behind
Solution Approach 1:
The patent introduces alternative authentication intermediaries (biometric sensors, RFID readers, facial recognition systems) that can verify user identity without requiring the mobile device. These intermediaries act as mediators between the user and the access control system, allowing authentication through other body parts or physical presence indicators when the device is unavailable.
Solution Approach 2:
The authentication system is segmented into multiple independent verification methods: mobile device authentication, biometric authentication, and physical presence detection. Each segment can operate independently, so failure of one segment (mobile device left behind) does not prevent access through other segments.
2Reliability
If automatic door locking is implemented, then security is improved, but operational efficiency deteriorates when users are locked out
Solution Approach 1:
The system implements feedback mechanisms where sensors detect user presence and authentication status in real-time. When a user approaches or attempts access, the system provides feedback through notifications or automatic authentication attempts, allowing the door to remain accessible without manual intervention while maintaining security protocols.
Solution Approach 2:
The system performs preliminary authentication actions before the door locks automatically. Biometric scanners or RFID readers are activated in advance when a user approaches, allowing authentication to be completed before the automatic locking sequence begins, preventing lockout scenarios.
3Ease of operation
If multiple authentication methods are added, then user accessibility is improved, but device complexity increases
Solution Approach 1:
The access control device is designed with multi-functional components that can serve multiple authentication purposes. For example, a single sensor array can detect both facial features and presence, while RFID readers can handle both mobile device communication and contactless card authentication, reducing overall system complexity despite multiple authentication methods.
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
Prevents users from being locked out of protected environments by alerting them when their mobile device is left behind, ensuring continuous access and reducing operational burdens in industries that rely heavily on mobile authentication.
Implementation Method 1
The communication module is configured to wirelessly receive an advertising signal from the mobile device
Implementation Method 2
The detection sensor is configured to detect a status event
Implementation Method 3
The processor determines the distance between the mobile device and the access control device based on a received signal strength of the advertising signal
Data Source
AI summary
An access control device and a method for operating an access control device are provided. The access control device includes a detection sensor, a communication module, and a processor. The detection sensor is configured to detect a status event (e.g., a rotation of a handle, or an insertion or closure of a keybox). The communication module is in wireless communication with a mobile device. The communication module is configured to receive an advertising signal from the mobile device. The processor is in communication with at least one of the detection sensor and the communication module. The processor is configured to determine whether a distance between the mobile device and the access control device is greater than a threshold when the detection sensor detects the status event. The processor is configured to trigger a notification when the distance is greater than the threshold.