Injury Estimation System Using Corrected Human Body and Contact Models
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Solution Overview
Problem
Existing injury estimation methods are not accurate enough as they solely rely on impact load, neglecting other critical factors that influence the severity of injuries during human-body-object interactions.
Innovation Solution
An injury estimation system and method that utilizes a database to generate and correct human-body and contact-object models, allowing for a more comprehensive simulation of injuries by incorporating various parameters such as age, gender, material properties, and contact conditions, thereby improving the accuracy of injury estimation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If injury estimation is based solely on impact load, then the estimation method is simple, but the accuracy of injury estimation is insufficient
Solution Approach 1:
The system segments the injury estimation process into distinct components: human body model generation, contact object model generation, injury reproduction, model correction, and final estimation. Each component handles specific parameters (body part properties, contact conditions, impact forces) separately, allowing comprehensive analysis without overwhelming complexity.
Solution Approach 2:
The system dynamically adjusts multiple parameters including human body part properties (density, elasticity), contact object properties (material, shape), and contact conditions (force, area, duration). By changing and optimizing these parameters based on reproduction results, the system achieves high estimation accuracy while managing complexity through systematic parameter control.
2Measurement precision
If comprehensive factors are incorporated into injury estimation, then the accuracy improves, but the computational complexity increases
Solution Approach 1:
The system performs preliminary actions by pre-generating human body models and contact object models with all necessary parameters before actual injury estimation. The model correction phase also acts as a preliminary step, refining the models based on reproduction results before final estimation, thereby reducing computational burden during the actual estimation process.
Solution Approach 2:
The system implements feedback through the model correction unit, which uses injury reproduction results to refine and adjust the human body and contact object models. This feedback loop ensures that subsequent estimations use optimized parameters, improving accuracy while reducing the need for repeated comprehensive calculations.
3Reliability
If multiple parameters are used in model generation, then the realism of simulation improves, but the data processing complexity increases
Solution Approach 1:
The system segments data processing into specialized units: human body model generation handles anatomical parameters, contact object model generation handles object properties, and model correction handles parameter optimization. This segmentation allows comprehensive parameter processing while maintaining manageable complexity through modular organization.
Solution Approach 2:
The database stores and manages diverse parameters (body part properties, contact conditions, material characteristics) in a unified structure that serves multiple functions: model generation, injury reproduction, and model correction. This universal data management approach handles multiple parameters efficiently without proportionally increasing processing complexity.
Data Source
AI summary
An injury estimation system according to the embodiment is for estimating an injury to a human body by using a human body model and a contact object model including a database configured to store, in association with each other, human body information, contact object information, and injury information, a human body model generation unit configured to generate the human body model, a contact object model generation unit configured to generate the contact object model, a reproduction unit configured to reproduce a result of an injury to the human body, a correction unit configured to correct the human body model and the contact object model based on the reproduced injury information and the injury information about the human body stored in the database, and an estimation unit configured to estimate the injury to the human body by using the corrected human body model and the corrected contact object model.