IoT Event Data Conversion to Multidimensional Time Series

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Solution Overview

Problem

Existing IoT platforms struggle to convert and store time series data from IoT events in a format suitable for data analysis using machine learning, deep learning, and statistics, making big data analysis difficult.

Innovation Solution

A method that converts sensing data from IoT devices into event information, which is then reconverted into multidimensional time series data according to specific conditions, and stored in a database in a format conducive to data analysis.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If sensing data is stored in event format with multiple fields (event identifier, timestamp, device name, resource name, value type, value), then data completeness and information retention are improved, but data analysis efficiency and ease of use deteriorate due to the need for complex filtering and processing

Engineering Contradiction:
Improveinformation retentionVSAvoiddata analysis efficiency
Core Design Contradiction:
Loss of informationVSEase of operation

Solution Approach 1:

The patent segments the event data into two distinct formats: event format for complete information storage and time series format for efficient analysis. The conversion process divides data into discrete time series tuples that can be directly utilized by analysis applications without complex filtering, thus resolving the contradiction between information completeness and analysis efficiency.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces an intermediary conversion process that transforms event data into time series data. This intermediary step acts as a bridge between the event storage system and the analysis application, pre-processing the data into a format that is optimized for analysis while preserving all original information through structured conversion.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If event data is converted and filtered according to multiple conditions (base device name, time limit, time unit, device name, filter list), then data relevance and analysis focus are improved, but processing complexity and time consumption increase

Engineering Contradiction:
Improvedata relevanceVSAvoidprocessing time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent applies preliminary filtering and conversion actions during the data ingestion phase. By converting event data to time series format and applying filters upfront, the system prepares data in advance for analysis, eliminating the need for complex filtering operations at query time and thus reducing processing time while maintaining data relevance.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent changes the parameter representation from event-based fields to time series tuples with structured attributes. This parameter transformation enables more efficient filtering and querying by analysis applications, as the converted format naturally supports time-based and device-based filtering without complex conditional logic.

Inventive Principle:
Principle #35Parameter changes

3Quantity of substance

If all sensing data from multiple devices and resources is stored in detail, then data comprehensiveness is improved, but storage requirements and processing overhead increase

Engineering Contradiction:
Improvedata comprehensivenessVSAvoidprocessing overhead
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The patent transforms the data from a multi-field event structure to a time series tuple structure, adding a temporal dimension as the primary organizing principle. This dimensional change allows comprehensive storage of all sensing data while simplifying processing, as the time series format naturally groups related data points and enables efficient time-based operations.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS20250202785A1Method for converting and storing time series data of IoT events
Publication Date: 2025.06.19 KOREA ELECTRONICS TECH INST
  • US20250202785A1 patent drawing
  • US20250202785A1 patent drawing
  • US20250202785A1 patent drawing

AI summary

Proposed is a method for converting and storing time series data of Internet of Things (IoT) events. The method may include converting sensing data received from an IoT device into an event according to a preset first data format. The method may also include converting the event into a tuple according to a preset second data format. The method may further include storing the time series data in a database table in a multidimensional time series data format based on the tuple.