Human Body Model Posture Calculation for Equipment Operability

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Solution Overview

Problem

Existing methods for evaluating equipment operability in three-dimensional virtual spaces struggle to maintain the optimum posture of a human body model when the physique changes, leading to difficulties in verifying equipment layout and determining the visibility and readability of target operation areas.

Innovation Solution

An apparatus and method that manage physique information and target positions to automatically calculate and maintain the operating posture of a human body model in a three-dimensional virtual space, ensuring the visibility and readability of target operation areas, regardless of physique changes, by using a physique management unit, target management unit, posture calculation unit, simulation unit, and view determination unit.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the joint angle of a human body model is set independently for each physique to calculate operating posture, then the operating posture can be accurately calculated for each physique, but the device complexity increases and manual reset is required when physique changes

Engineering Contradiction:
Improveaccuracy of operating posture calculationVSAvoidcomplexity of posture calculation system
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system automatically calculates and adjusts the joint angles of the human body model based on the selected physique. When a user changes the physique, the system self-adjusts the posture parameters without requiring manual intervention, thereby reducing operational complexity while maintaining calculation accuracy.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system stores different joint angle parameters for each physique type and automatically switches between parameter sets when the physique is changed. This allows the system to maintain accurate posture calculation for each physique while avoiding the complexity of manual parameter adjustment.

Inventive Principle:
Principle #35Parameter changes

2Productivity

If the human body model physique is changed without resetting joint angles, then the evaluation process becomes faster, but the view range shifts and layout verification becomes difficult

Engineering Contradiction:
Improvespeed of evaluation processVSAvoidaccuracy of layout verification
Core Design Contradiction:
ProductivityVSMeasurement precision

Solution Approach 1:

The system pre-stores the correct joint angle parameters for each physique type. When a physique is selected or changed, the system automatically retrieves and applies the corresponding pre-configured parameters, enabling fast switching without compromising the accuracy of layout verification.

Inventive Principle:
Principle #10Preliminary action

3Measurement precision

If manual reset of joint angles is required when physique changes, then the system maintains accuracy, but the ease of operation decreases and time is lost

Engineering Contradiction:
Improveaccuracy of operating posture calculationVSAvoidease of physique change operation
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The system automatically adjusts joint angles when the physique is changed, eliminating the need for manual reset operations. This self-adjusting mechanism maintains calculation accuracy while significantly improving ease of operation and reducing the time required for physique changes.

Inventive Principle:
Principle #25Self-service

4Measurement precision

If the target operation area is displayed with large size and high brightness to improve visibility, then the readability improves, but the equipment layout verification becomes less accurate due to interference with the view

Engineering Contradiction:
Improvereadability of target operation areaVSAvoidinterference with view image
Core Design Contradiction:
Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The system displays the target operation area with enhanced properties (larger size, higher brightness) only when necessary for readability, rather than continuously. This partial enhancement approach ensures that the target area is readable when needed while minimizing interference with the overall equipment layout verification process.

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentUS7533001B2Apparatus and method for evaluating equipment operability
Publication Date: 2009.05.12 FUJITSU LTD
  • US7533001B2 patent drawing
  • US7533001B2 patent drawing
  • US7533001B2 patent drawing

AI summary

The equipment operability evaluation apparatus calculates the operating posture of a human body model based on the physique information about a human body model in a physique management table, the operation information in an operation management table, and the target information in a target management table, arranges an equipment model and the human body model taking the calculated operating posture in a three-dimensional virtual space, displays a view image of a three-dimensional virtual space from the point of view of the human body model, and determines the visibility about the target operation area of the equipment model displayed on the view image and the readability of a character string.