Biometric Body-Worn Device for Intent Detection in Multi-Lock Access
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Solution Overview
Problem
In environments with multiple locks within wireless range, such as hotels, it is difficult to determine user intent due to overlapping Bluetooth signals from various locks, and distinguishing between users attempting access to adjacent doors is challenging.
Innovation Solution
A biometric-based access control system that uses body-worn devices to sense and compare biometric data like heart rate, skin temperature, and eye movements with access control sensors to determine user intent, synchronizing data to a globally synchronized time for precise matching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple locks send periodic Bluetooth advertisements to enable wireless access control, then access control functionality is enabled, but it becomes difficult to determine user intent when multiple locks are within range
Solution Approach 1:
The patent introduces biometric markers (heart rate, skin temperature, eye movements, sudden bodily movements) as an intermediary to determine user intent. These biometric signals serve as a mediator between the user and the access control system, allowing the system to identify which lock the user intends to access by detecting physiological responses when the user approaches or interacts with specific locks.
Solution Approach 2:
The patent replaces traditional mechanical or manual intent indication methods (such as physically approaching a lock or selecting it on a device) with biometric sensing. The access control system uses sensors to detect and analyze biometric markers, substituting physiological signal processing for conventional user input methods.
2Use of energy by moving object
If Bluetooth Low Energy enables always-on locks sending periodic advertisements, then low-power wireless communication is achieved, but signal overlap complicates lock identification
Solution Approach 1:
Biometric markers serve as an intermediary signal that resolves the ambiguity caused by overlapping Bluetooth advertisements. When multiple locks are within range, the biometric sensors detect physiological responses specific to the user's intended target, providing precise lock identification without requiring changes to the Bluetooth advertisement protocol or increasing power consumption.
3Productivity
If multiple users attempt access to adjacent doors simultaneously, then concurrent access is enabled, but it becomes difficult to determine which user wants to access which door
Solution Approach 1:
The biometric markers act as a unique intermediary signal for each user-lock interaction. Even when multiple users approach different locks simultaneously, the system can distinguish between them by detecting the specific biometric responses of each user toward their intended target, maintaining accurate user-lock pairing information during concurrent access attempts.
Solution Approach 2:
The patent effectively segments the mixed biometric signals from multiple users by associating each user's biometric data with their specific intended lock. The system processes and separates the biometric marker streams, allowing simultaneous authentication of multiple users at different locations without cross-contamination of authentication data.
Data Source
AI summary
A method to determine user intent for an access control including sensing biometrics data from a body-worn device; sensing biometrics data at an access control; comparing the biometrics data from the body-worn device and the access control; and determining a user intent to access the access control in response to the comparing.