Biometric Control System Using Wearable Heartbeat Detection

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Solution Overview

Problem

Current biometric control systems lack efficient and secure methods for individualized control based on continuous user identification, particularly in dynamic environments like smart parking lots, where energy conservation and user-specific device control are essential.

Innovation Solution

An individualized control system utilizing a portable device and wearable accessory that detects biometric characteristics such as heart rate variability and blood oxygenation to identify users and activate specific controls, including Bluetooth-enabled communication for secure and efficient device operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If biometric detection is used to identify users for individualized control, then security and user-specific control are improved, but system complexity increases

Engineering Contradiction:

Improveuser identification accuracyVSAvoidsystem structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The system divides the control architecture into three independent modules: a portable device for biometric detection and user identification, a wearable accessory for continuous heartbeat monitoring, and a control host for executing control commands. This segmentation allows each component to perform its specialized function efficiently while reducing overall system complexity through modular design.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The wearable accessory acts as an intermediary between the portable device and the control host. It receives the user ID from the portable device, continuously monitors heartbeat signals, and only transmits confirmation to the control host when both conditions are met (valid user ID and continuous heartbeat detection). This intermediary role enhances security while maintaining system simplicity.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If continuous heartbeat detection is required for activation, then security is improved, but energy consumption increases

Engineering Contradiction:

Improveauthorization securityVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The wearable accessory performs heartbeat detection at periodic intervals rather than continuously monitoring without interruption. The system checks for heartbeat signals at defined time intervals, which maintains security by ensuring continuous verification while significantly reducing power consumption compared to uninterrupted monitoring.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The wearable accessory autonomously manages its own power consumption by entering low-power states between heartbeat detection cycles. The device self-regulates its operation, performing detection only when necessary to maintain the confirmed state, thereby eliminating the need for external power management control while optimizing energy efficiency.

Inventive Principle:

Principle #25Self-service

3Ease of operation

If Bluetooth communication is added for device linkage, then ease of operation is improved, but device complexity increases

Engineering Contradiction:

Improvedevice connectivityVSAvoidcommunication modules

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The portable device incorporates a Bluetooth module that serves multiple functions: establishing initial communication links with the wearable accessory, transmitting user ID information, and enabling seamless device pairing. This multi-functional use of the Bluetooth module improves ease of operation without requiring separate dedicated communication channels for each function.

Inventive Principle:

Principle #6Universality (Multi-functionality)

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

Enables secure and energy-efficient individualized control of devices and systems by ensuring only authorized users can activate specific controls, optimizing energy use and improving user experience in environments like smart parking lots.

Implementation Method 1

An optical pulse oximeter generally emits a red light beam (wavelength of about 660 nm) and an infrared light beam (wavelength of about 910 nm) to penetrate a part of the human body and detects an intensity variation of the penetrating light based on the feature that the oxyhemoglobin and the deoxyhemoglobin have different absorptivities in particular spectrum

Methodology Applied

Scientific EffectPhotoplethysmography: Absorption Spectroscopy

Implementation Method 2

the blood oxygenation can then be calculated according to an equation: Blood oxygenation=100%×[HbO2]/([HbO2]+[Hb]), wherein [HbO2] is an oxyhemoglobin concentration; and [Hb] is a deoxyhemoglobin concentration

Methodology Applied

Scientific EffectLight absorption: Absorption (EM radiation)

Data Source

PatentUS10089802B2Individualized control system utilizing biometric characteristic

Publication Date: 2018.10.02 PIXART IMAGING INC

AI summary

A control system including a detection device and a control host is provided. The detection device is configured to detect a biometric characteristic to accordingly identify a user ID, and output an ID signal according to the user ID. The control host is configured to receive the ID signal to accordingly perform an individualized control associated with the user ID.