Biosignal Data Synchronization via Standard Time Correction

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Solution Overview

Problem

Biosignal data from multiple measurement devices often contains errors due to differing reference times, leading to miscalculations when analyzing health data, as each device sets its own timing and may drift from the original reference time.

Innovation Solution

A method and system that transmit a time set command to measurement devices, receive and correct biosignal data with a standard time axis, generate synchronized biosignal data by adjusting for errors, and reset the reference time of measurement devices to match the standard time, ensuring accurate synchronization and analysis.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If each measurement device sets its own reference time independently, then each device can operate autonomously and generate biosignal data according to its own timing, but the reference times drift from each other causing time errors in the collected biosignal data

Engineering Contradiction:

Improveautonomous operation of measurement devicesVSAvoidtime accuracy of biosignal data

Core Design Contradiction:

Ease of operationVSMeasurement precision

Solution Approach 1:

The system transmits a time set command to each measurement device based on standard time, receives biosignal data with timestamps, compares the timestamps against standard time, detects time errors, and transmits correction commands back to the devices. This closed-loop feedback mechanism maintains time synchronization while allowing autonomous operation.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system performs preliminary time synchronization by transmitting time set commands to measurement devices before they start measuring biosignals. This preliminary action prevents time drift from occurring in the first place, ensuring that all devices operate on the same time basis from the beginning.

Inventive Principle:

Principle #10Preliminary action

2Adaptability or versatility

If measurement devices operate with drifted reference times, then device autonomy is maintained, but the biosignal data contains time errors that cause miscalculations in health analysis

Engineering Contradiction:

Improveindependent operation capabilityVSAvoidaccuracy of health analysis results

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The central control system acts as an intermediary between measurement devices and the analysis system. It receives biosignal data from devices, corrects time errors using standard time as a reference, and provides synchronized data to the analysis system, thereby ensuring reliability without compromising device independence.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

Measurement devices receive time set commands and correction commands from the control system, enabling them to self-correct their reference times. This self-service mechanism allows devices to maintain accuracy autonomously without requiring manual intervention.

Inventive Principle:

Principle #25Self-service

3Measurement precision

If time correction is performed on biosignal data after collection, then time errors can be corrected, but additional processing time and complexity are required

Engineering Contradiction:

Improvetime accuracy of biosignal dataVSAvoiddata processing complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

Time correction is performed as a preliminary step immediately after data collection, before health analysis. The control system compares timestamps with standard time, identifies time errors, and corrects the data in a systematic manner, simplifying the overall processing complexity.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The time correction process is segmented into distinct steps: receiving biosignal data with timestamps, comparing timestamps against standard time, detecting time errors, generating correction commands, and applying corrections. This segmentation makes the complex process more manageable and systematic.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS8540630B2Method and medium for synchronizing vital signal data received from plural measuring apparatuses and system of enabling the method

Publication Date: 2013.09.24 SAMSUNG ELECTRONICS CO LTD

AI summary

A method of synchronizing a user's biosignal data received from a plurality of measurement devices is provided, including: transmitting a time set command to each of the plurality of measurement devices; receiving the user's first biosignal data from each of the plurality of measurement devices, the first biosignal data including a time axis and the time axis including a measurement start time and a measurement termination time; comparing the measurement start time and the measurement termination time with a standard time; and generating second biosignal data from corrected first biosignal data, corrected by referring to the standard time, when the comparison results in an error; and synchronizing a plurality of the second biosignal data and generating third biosignal data, wherein each of the plurality of measurement devices receives the time set command and generates the first biosignal data.