JP2017189471A - 生体信号計測システム - Google Patents
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Abstract
Description
まず、実施の形態1に係る生体信号計測システム1について、図1〜図3を用いて説明する。図1は、実施の形態1に係る生体信号計測システム1の構成を示すブロック図である。図2は、同生体信号計測システム1を用いてユーザ100の生体信号を計測する様子を模式的に示す図である。図3は、同生体信号計測システム1を用いて計測される信号の例を示す図である。
次に、実施の形態1の変形例に係る生体信号計測システム1Aについて、図4を用いて説明する。図4は、実施の形態1の変形例に係る生体信号計測システム1Aの構成を示すブロック図である。
次に、実施の形態2に係る生体信号計測システムについて、図9及び図10を用いて説明する。図9は、実施の形態2に係る生体信号計測システムを用いてユーザ100の生体信号を計測する様子を模式的に示す図である。図10は、同生体信号計測システムを用いて計測する信号の例を説明するための図である。
次に、実施の形態3に係る生体信号計測システムについて、図11及び図12を用いて説明する。図11は、実施の形態3に係る生体信号計測システムを用いてユーザ100の生体信号を計測する様子を模式的に示す図である。図12は、同生体信号計測システムを用いて計測する信号の例を説明するための図である。
次に、実施の形態4に係る生体信号計測システムについて、図13及び図14を用いて説明する。図13は、実施の形態4に係る生体信号計測システムを用いてユーザ100の生体信号を計測する様子を模式的に示す図である。図14は、同生体信号計測システムを用いて計測する信号の例を説明するための図である。
以上、本発明に係る生体信号計測システムについて、実施の形態及び変形例に基づいて説明したが、本発明は、上記実施の形態及び変形例に限定されるものではない。
10 生体信号計測部
21 生体ノイズ計測部
22 生体ノイズ推定部
31 環境ノイズ計測部
32 環境ノイズ推定部
40 演算部
50 分析部
Claims (7)
- 生体ノイズ及び環境ノイズの外部ノイズが含まれる生体信号を計測する生体信号計測部と、
生体ノイズが含まれる信号を計測する生体ノイズ計測部と、
前記生体ノイズ計測部で計測した信号から生体ノイズを推定する生体ノイズ推定部と、
環境ノイズが含まれる信号を計測する環境ノイズ計測部と、
前記環境ノイズ計測部で計測した信号から環境ノイズを推定する環境ノイズ推定部と、
前記生体信号計測部で計測した信号と前記生体ノイズ推定部で推定した前記生体ノイズと前記環境ノイズ推定部で推定した前記環境ノイズとを用いて、前記外部ノイズの影響を考慮した生体信号を演算する演算部と、を備える、
生体信号計測システム。 - 前記生体ノイズ推定部は、前記生体ノイズ計測部で計測した信号に第一の定数を乗算した第一信号を前記生体ノイズであると推定し、
前記環境ノイズ推定部は、前記環境ノイズ計測部で計測した信号に第二の定数を乗算した第二信号を前記環境ノイズであると推定し、
前記演算部は、前記生体信号計測部で計測した信号から、前記第一信号及び第二信号を差し引くことにより、前記外部ノイズの影響を考慮した生体信号を演算する、
請求項1記載の生体信号計測システム。 - 前記生体信号計測部で計測した信号の独立成分分析を行う分析部を備え、
前記生体ノイズ推定部は、前記分析部による独立成分への信号分離結果のうち、前記生体ノイズ計測部で計測した信号に近い独立成分を前記生体ノイズであると推定し、
前記環境ノイズ推定部は、前記分析部による独立成分への信号分離結果のうち、前記環境ノイズ計測部で計測した信号に近い独立成分を前記環境ノイズであると推定し、
前記演算部は、前記生体信号計測部で計測した信号から、推定した前記生体ノイズと前記環境ノイズとを除去することにより、前記生体ノイズ及び前記環境ノイズを除いた生体信号を演算する、
請求項1記載の生体信号計測システム。 - 前記生体信号は、脳波であり、
前記生体信号計測部は、ユーザの頭部に装着可能な電極を用いた構成であり、
前記生体ノイズ計測部は、ユーザの喉、目、及び、こめかみの少なくとも何れかの箇所の近傍に装着可能な電極を用いた構成である、
請求項1乃至3の何れか1項に記載の生体信号計測システム。 - 前記生体信号は、手の指先、鼻、足甲及び足の指先の少なくとも何れかの箇所の温度に関する信号であり、
前記生体信号計測部は、ユーザの手の指先、鼻、足甲及び足の指先の少なくとも何れかに装着可能な構成であり、
前記生体ノイズ計測部は、ユーザの手首、手の甲、手の平、指の第一関節、額、足首、及び、足の甲の少なくとも何れかの箇所に装着可能な構成である、
請求項1乃至3の何れか1項に記載の生体信号計測システム。 - 前記生体信号は、脳血流に関する信号であり、
前記生体信号計測部は、ユーザの頭部の着目部位の吸光度を計測し、
前記生体ノイズ計測部は、ユーザの脳全体の吸光度を計測する、
請求項1乃至3の何れか1項に記載の生体信号計測システム。 - 前記生体信号は、精神性発汗に関する信号であり、
前記生体信号計測部は、ユーザの精神性発汗量を計測し、
前記生体ノイズ計測部は、ユーザの体温変化に伴う発汗量を計測する、
請求項1乃至3の何れか1項に記載の生体信号計測システム。
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