Electronic Device Position Change Measurement Method

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Solution Overview

Problem

Electronic devices face high current consumption when continuously detecting changes in position, leading to inefficient operation and unnecessary position measuring operations.

Innovation Solution

A method and device where a first processor determines state changes using sensors and transmits information to a second processor only when significant changes occur, allowing the second processor to measure position changes at set periods, thereby reducing unnecessary operations and power consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the Application Processor continuously operates to detect movement changes using sensors, then position measurement accuracy is maintained, but current consumption increases

Engineering Contradiction:
Improveposition measurement accuracyVSAvoidcurrent consumption
Core Design Contradiction:
Measurement precisionVSUse of energy by moving object

Solution Approach 1:

The patent divides the processing system into two segments: a sensor module that continuously monitors physical quantities (acceleration, position, temperature, etc.) and an Application Processor that is activated only when state changes are detected. This segmentation allows continuous monitoring without continuous full-processing operation, reducing power consumption while maintaining measurement accuracy.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The sensor module performs preliminary detection of state changes before triggering the Application Processor. By pre-detecting changes in physical quantities and comparing them against threshold values, the system prepares and filters data beforehand, so the main processor only needs to handle cases where actual position changes occur, reducing unnecessary computational energy consumption.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If the Application Processor operates continuously to determine position changes, then position tracking reliability is improved, but unnecessary position measuring operations increase

Engineering Contradiction:
Improveposition tracking reliabilityVSAvoidoperation efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The system performs preliminary detection of state changes using sensors and threshold comparisons before initiating position measurement operations. This preliminary filtering ensures that the position measuring module is activated only when actual movement or state changes occur, maintaining position tracking reliability while eliminating unnecessary measurement operations.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements feedback mechanisms where sensor data is continuously monitored and compared against stored threshold values. When state changes exceed these thresholds, feedback triggers the Application Processor to perform position measurements. This feedback-based control ensures reliable position tracking only when needed, improving operational efficiency.

Inventive Principle:
Principle #23Feedback

3Measurement precision

If the system measures position at every set period regardless of state changes, then measurement completeness is maintained, but energy waste increases

Engineering Contradiction:
Improvemeasurement completenessVSAvoidenergy waste
Core Design Contradiction:
Measurement precisionVSLoss of energy

Solution Approach 1:

Before performing position measurements at set periods, the system performs preliminary checks using sensor data to determine whether state changes have occurred. This preliminary action filters out periods where no meaningful changes occurred, allowing the system to skip unnecessary measurements and reduce energy waste while maintaining completeness of important position data.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

Instead of performing full position measurements at every set period, the system applies partial action by only executing measurements when state changes are detected. This selective approach performs exactly the necessary measurements without excessive operations, optimizing the balance between measurement completeness and energy consumption.

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentUS10198057B2Electronic device and method for measuring position change
Publication Date: 2019.02.05 SAMSUNG ELECTRONICS CO LTD
  • US10198057B2 patent drawing
  • US10198057B2 patent drawing
  • US10198057B2 patent drawing

AI summary

An operating method of an electronic device is provided. The method includes determining, by a first processor using at least one sensor, whether a state change occurs, if it is determined that there is the state change, determining, by the first processor, whether to transmit state information to a second processor, and determining, by the second processor, whether to measure a changed position at each of set periods using a position measuring module on the basis of whether the state information is received.