Optical Body Measurement System Without Moving Parts
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Solution Overview
Problem
Existing body size measurement apparatuses are large, complex, and costly, making them difficult to introduce into facilities like hospitals and health centers, and require movable components that necessitate complicated maintenance.
Innovation Solution
A non-contact measurement system using light emitting devices to encircle a target person with linear light beams, multiple image capturing devices positioned around the person to capture the light beams at an oblique angle, and a database to convert two-dimensional image coordinates into measurement plane coordinates, allowing for the calculation of peripheral body length without moving components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If existing body size measurement apparatuses are used, then measurement function is achieved, but device complexity and cost increase
Solution Approach 1:
The patent replaces mechanical measurement systems (distance measuring means, rotating mechanisms, movable components) with an optical field-based system using light emitting devices and image capturing devices. This substitution eliminates the need for complex mechanical structures while achieving accurate body size measurement through optical imaging and coordinate conversion algorithms.
Solution Approach 2:
The patent creates a two-dimensional coordinate representation (image) of the three-dimensional body shape by capturing light beam reflections. Instead of directly measuring physical dimensions with mechanical means, the system captures an optical copy (image) and processes it through coordinate conversion to derive measurement data, simplifying the overall system structure.
2Productivity
If movable components are included in measurement apparatus, then measurement capability is improved, but maintenance complexity increases
Solution Approach 1:
The patent eliminates movable components (drivers, rotating mechanisms) by replacing them with stationary optical systems. The light emitting devices and image capturing devices remain fixed, and measurement capability is maintained through optical field manipulation and computational processing rather than mechanical movement.
Solution Approach 2:
The patent extracts and removes the movable components (drivers and rotating mechanisms) from the measurement system while retaining the essential measurement function. By taking out these problematic elements and replacing them with stationary optical and computational components, the system achieves maintenance simplicity without sacrificing measurement capability.
3Measurement precision
If large-sized apparatuses are deployed, then measurement accuracy is achieved, but deployment cost and difficulty increase
Solution Approach 1:
The patent replaces large-scale mechanical measurement apparatus with a compact optical system. By using light emitting devices, image capturing devices, and coordinate conversion algorithms, the system achieves accurate body size measurement in a much smaller, more cost-effective configuration that is easier to manufacture and deploy in facilities like hospitals and health centers.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables simple, cost-effective measurement of body sizes like abdominal extension girth or chest girth without movable components, facilitating low-cost deployment and maintenance.
Implementation Method 1
light emitting devices emitting linear light beams so as to encircle a target person within a certain plane
Implementation Method 2
image capturing devices positioned around the target person such that a total circumference of the linear light beams having been emitted to the target person can be captured
Data Source
AI summary
Provided is a body measurement device capable of carrying out a body measurement, such as of abdominal girth or chest girth, with a simple configuration which eliminates moving components. In particular, the body measurement device includes computing device that converts two-dimensional coordinates of images of linear light beams included in images having been captured by a plurality of image capturing devices into two-dimensional coordinates on a certain plane in accordance with a relation stored in a database, and computes a peripheral length of a body of a target person within the certain plane.