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External force measuring system based on optical signal and measuring method thereof

A technology of optical signal and measurement method, applied in the direction of measuring device, diagnostic recording/measurement, weighing, etc., which can solve the problem that consumers cannot carry weight at any time

Pending Publication Date: 2022-07-29
UNIVERSAL GLOBAL TECH (HUIZHOU) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the weight of electronic scales prevents consumers from carrying

Method used

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  • External force measuring system based on optical signal and measuring method thereof
  • External force measuring system based on optical signal and measuring method thereof
  • External force measuring system based on optical signal and measuring method thereof

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Embodiment Construction

[0022] The following are specific specific examples to illustrate the implementation of the “optical signal-based external force measurement system and its measurement method” provided by the present invention. Those skilled in the art can understand the advantages and effects of the present invention from the content provided in this specification. . The present invention can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of the present invention. In addition, the drawings of the present invention are merely schematic illustrations, and are not drawn according to the actual size, and are stated in advance. The following embodiments will further describe the related technical contents of the present invention in detail, but the provided contents are not intended to limit the protection scope of the...

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Abstract

The invention discloses an external force measuring system and an external force measuring method based on optical signals. The external force measuring system comprises a shell, a light volume change tracing graph circuit and a conversion circuit. The first side of the housing receives an external force and the second side of the housing contacts the skin. The photoplethysmogram circuit and the conversion circuit are arranged in the shell. The photoplethysmography circuit emits light to the skin and collects reflected light from the skin. The light volume change plot circuit converts the illuminance of the reflected light into a direct current signal value of a light volume change plot signal. The conversion circuit converts the direct-current signal value into an external force measurement value.

Description

technical field [0001] The invention relates to a measurement system and a measurement method thereof, in particular to an external force measurement system and a measurement method using an optical signal. Background technique [0002] Due to the advent of an aging society, more and more people pay attention to their health status, and hope to have a portable device that can monitor their health status at any time. Photoplethysmography (PPG for short) is widely used to measure heartbeat and applied to portable devices such as watches. Regarding the principle of photoplethysmography (PPG) to measure heartbeat, in simple terms, it is to detect the change of blood volume in living tissue through optical signals, and then calculate the number of heartbeats of the user according to the change of blood volume. [0003] In order to know whether the daily intake of nutrients and calories is sufficient or excessive, some consumers use electronic scales to measure the weight of food...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01G9/00G01G19/414A61B5/00G06K9/00G06K9/62
CPCG01G9/00G01G19/4146A61B5/0064A61B5/0075A61B5/6801G06F2218/00G06F18/214
Inventor 柯立安
Owner UNIVERSAL GLOBAL TECH (HUIZHOU) CO LTD
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