Stress monitoring for individuals in moving structures
Inventors
Berckmans, Daniel • Exadaktylos, Vasileios
Assignees
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Publication Number
US-10299715-B2
Publication Date
2019-05-28
Expiration Date
Abstract
Method and device for monitoring stress of an individual in a moving structure by estimating and monitoring a mental component of a total heart rate of the individual, wherein the total heart rate comprises the mental component, a mechanical component, a component relating to heat balance and a component relating to basic metabolic functions, wherein the total heart rate and movements of the individual and the moving structure are measured in real-time, wherein the mechanical component is estimated in real-time based on the real-time movement of the individual and the moving structure, wherein the mental component is obtained by subtracting the mechanical component, the component relating to the heat balance and the component relating to basic metabolic functions from the total heart rate.
Core Innovation
The invention relates to monitoring stress of an individual in a moving structure by estimating and monitoring a mental component (HR_Mental) of a total heart rate (HR_Total). The total heart rate (HR_Total) is decomposed into a mechanical component (HR_Mechanical), a mental component (HR_Mental), a component relating to heat balance (HR_HeatBal), and a component relating to basic metabolic functions (HR_BasicMet).
The method includes measuring movement of the individual in real-time and measuring movement of the moving structure in real-time. A mechanical component (HR_Mechanical) is estimated in real-time based on the real-time movement of the individual and the real-time movement of the moving structure.
The mental component (HR_Mental) is obtained by subtracting the mechanical component (HR_Mechanical), the heat-balance component (HR_HeatBal), and the basic-metabolic component (HR_BasicMet) from the total heart rate (HR_Total). A stress level is output corresponding to the mental component (HR_Mental).
The approach addresses failure of conventional methods when body motion differs from required activity in moving structures by explicitly measuring both individual movement and moving-structure movement to enable correction and decomposition of heart-rate components. The mechanical component (HR_Mechanical) is estimated using a dynamic and adaptive data-based on-line modelling technique, with embodiments that compute relative movement and refine the decomposition of heart-rate components.
Claims Coverage
The document provides two independent claims that cover both a method and a device. Across these independent claims, the inventive features focus on stress monitoring by decomposing total heart rate into mechanical, heat-balance, basic-metabolic, and mental components using real-time measurements of both an individual and a moving structure.
Stress monitoring by mental component of total heart rate
Monitoring stress of an individual in a moving structure by estimating and monitoring a mental component (HR_Mental) of a total heart rate (HR_Total), where HR_Total comprises a mechanical component (HR_Mechanical), a component relating to heat balance (HR_HeatBal), and a component relating to basic metabolic functions (HR_BasicMet).
Real-time sensing of both individual movement and moving-structure movement
Measuring a movement of the individual in real-time and measuring a movement of the moving structure in real-time as inputs for stress monitoring in the moving structure.
Real-time estimation of mechanical component from measured movements
Estimating the mechanical component (HR_Mechanical) in real-time based on the real-time movement of the individual and the real-time movement of the moving structure.
Deriving mental component by subtracting remaining heart-rate components
Obtaining the mental component (HR_Mental) by subtracting the mechanical component (HR_Mechanical), the component relating to heat balance (HR_HeatBal), and the component relating to basic metabolic functions (HR_BasicMet) from the total heart rate (HR_Total).
Stress level output corresponding to the mental component
Outputting a level of stress corresponding to the mental component (HR_Mental) of the heart rate.
Stress-monitoring device with real-time input, modeling, and output
A device for monitoring stress of an individual including an input unit for measuring in real-time input values comprising a total heart rate (HR_Total), a movement of the individual, and a movement of the moving structure; a memory unit for storing the input values; a calculating unit for estimating in real-time a mechanical component (HR_Mechanical) using a dynamic and adaptive data-based on-line modelling technique and for obtaining a mental component (HR_Mental) by subtracting the mechanical component (HR_Mechanical), the component relating to heat balance (HR_HeatBal), and the component relating to basic metabolic functions (HR_BasicMet) from the total heart rate (HR_Total); and an output unit for displaying an output value comprising a stress level corresponding to the mental component (HR_Mental) of the heart rate.
Across the independent claims, the core coverage is decomposing HR_Total into HR_Mechanical, HR_HeatBal, HR_BasicMet, and HR_Mental using real-time measurements of both the individual and the moving structure. The device claim mirrors this by providing an input unit, a real-time calculating unit using a dynamic and adaptive data-based on-line modelling technique, and an output unit displaying a stress level corresponding to the mental component.
Stated Advantages
Provides stress monitoring in a moving structure by estimating a mental component of total heart rate based on explicitly measuring both individual movement and moving-structure movement.
Addresses failure of conventional methods when body motion differs from required activity in moving structures by using measured movement of the moving structure to enable correction and decomposition.
Documented Applications
Race drivers (car/race drivers) stress monitoring using the moving structure context.
Horse riding stress monitoring using the moving structure context.
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