WO2018152757A1 - 一种儿童生理参数采集与情绪检测系统 - Google Patents

一种儿童生理参数采集与情绪检测系统 Download PDF

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WO2018152757A1
WO2018152757A1 PCT/CN2017/074670 CN2017074670W WO2018152757A1 WO 2018152757 A1 WO2018152757 A1 WO 2018152757A1 CN 2017074670 W CN2017074670 W CN 2017074670W WO 2018152757 A1 WO2018152757 A1 WO 2018152757A1
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module
skin
sensor
data
skin resistance
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French (fr)
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杨晓明
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杨晓明
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/0205—Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
    • A61B5/02055—Simultaneously evaluating both cardiovascular condition and temperature
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/14507—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue specially adapted for measuring characteristics of body fluids other than blood
    • A61B5/14517—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue specially adapted for measuring characteristics of body fluids other than blood for sweat
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/14532—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue for measuring glucose, e.g. by tissue impedance measurement
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
    • A61B5/14551—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters for measuring blood gases
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/16—Devices for psychotechnics; Testing reaction times ; Devices for evaluating the psychological state
    • A61B5/165—Evaluating the state of mind, e.g. depression, anxiety
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/316—Modalities, i.e. specific diagnostic methods
    • A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7225—Details of analog processing, e.g. isolation amplifier, gain or sensitivity adjustment, filtering, baseline or drift compensation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2503/00—Evaluating a particular growth phase or type of persons or animals
    • A61B2503/06—Children, e.g. for attention deficit diagnosis
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/02—Details of sensors specially adapted for in-vivo measurements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/02—Details of sensors specially adapted for in-vivo measurements
    • A61B2562/0219—Inertial sensors, e.g. accelerometers, gyroscopes, tilt switches

Definitions

  • the invention relates to the technical field of physiological detection, in particular to a child physiological parameter collection and emotion detection system.
  • Emotion is the foundation of our intelligence and the foundation of human morality and dignity.
  • cognitive neuroscience and emotional neuroscience more and more evidence indicates that emotion is an indispensable part of the process of reasoning and judgment, and has an important impact on the learning and memory processes of each growth period.
  • the emotional changes in childhood are particularly important. If you do not get the correct psychological guidance and emotional attention during the growth process, it may lead to autism, inferiority and fever in adolescence. Therefore, we advocate that emotional supervision should start from childhood.
  • emotion is a subjective consciousness, changes in emotional state are always accompanied by certain physiological changes. Therefore, we can use children as a test object from the perspective of physiological parameters and use a set of objective evaluation criteria to study emotional state.
  • the main physiological indicators of emotional activity are:
  • the mechanism is that when the emotional state changes, the relaxation and contraction of blood vessels in the skin and the secretion of sweat glands can cause changes in skin resistance.
  • the galvanometer is used to measure the emotional response of the autonomic nervous system.
  • ECG Circulatory system indicators
  • vascular volume When you are satisfied and happy, your heartbeat is normal. When you are in tension, fear or anger, Heartbeat. Changes in vascular volume are caused by autonomic nervous system control of arterial wall smooth muscle contraction and relaxation, which is caused by local vasoconstriction and relaxation. Some emotional states, such as intense mental work, anger, fear, new irritations, etc., can cause contraction of blood vessels in the skin; when people feel embarrassed or shame, it can cause relaxation of blood vessels in the skin. Changes in blood pressure are associated with vascular volume and both reflect an approximate physiological mechanism of circulatory activity.
  • the application targeted by the invention is an emotion-related research, which can accurately measure emotion-related physiological parameters, has the characteristics of convenient carrying and wearing, low power consumption can be stored for a long time, and is convenient to use and operate. Be applicable Research in emotional analysis, psychoanalysis, intelligence and potential is also applicable to home and personal use.
  • the object of the present invention is to provide a child physiological parameter collection and emotion detection system, which observes children's emotional state and cognitive activity by recording physiological changes accompanying emotions, such as electrocardiogram, vasoconstriction, and skin electrical reaction. Research, understand their level of development and individual differences, and help them correctly deal with problems in emotional communication and intellectual development.
  • the invention provides a child physiological parameter collection and emotion detection system, comprising: a data acquisition module, a signal processing module and a data transceiver module, wherein the data acquisition module comprises a biometric sensor, a skin conduction value sensor, an electrocardiographic signal detection sensor, Filter amplification module, A/D conversion module power module, skin temperature measurement module, skin resistance measurement module, pulse measurement module, display module, acquisition control module, spectral sensor capable of measuring blood oxygen, pressure and glucose level, used to measure sweat Level and pH skin electric response sensor, ultraviolet index sensor; wherein the biometric sensor includes accelerometer, gyroscope, magnetometer, pressure sensor, skin temperature measuring module, skin resistance measuring module, pulse measuring module, display module They are respectively connected to the acquisition control module, and the data transceiver module is connected: a data acquisition module and a signal processing module.
  • the data acquisition module comprises a biometric sensor, a skin conduction value sensor, an electrocardiographic signal detection sensor, Filter amplification module, A/D conversion module power module, skin temperature measurement module
  • the skin temperature measurement module circuit can accurately measure skin temperature.
  • the circuit consists of a thermocouple, a thermocouple conditioning core U, an op amp U, and a resistor capacitor.
  • the skin resistance measuring module can measure the skin electrical response.
  • the sinusoidal signal generator produces a sine wave with a frequency of 75hz and an amplitude of 300mv.
  • the sinusoidal signal is output to the electrode, and the signal at the other end of the electrode is converted by current-voltage, filtered and amplified, and sent to the acquisition and control system.
  • There is a feedback system in the module Since the skin resistance varies greatly from individual to individual, the feedback system can ensure that the output of the skin resistance measurement system is within a suitable range. Can be applied to different subjects.
  • the pulse measuring circuit sensor uses a vinylidene fluoride (PVDF) material to detect the brachial artery pulse wave, and has the characteristics of high detection sensitivity and good stability.
  • PVDF vinylidene fluoride
  • the measurement control module circuit is composed of a crystal oscillator circuit and a processor chip.
  • the signal processing module includes pulse wave, skin resistance, real-time display of skin temperature signal, online time-length storage, and data playback; skin conductance baseline adjustment command transmission.
  • the signal processing module After receiving the data of the lower computer through the Bluetooth, the signal processing module performs real-time display and storage operations, and can also adjust the skin conductance baseline according to requirements, and can also play back historical data.
  • the skin resistance measuring module comprises a sequentially connected sinusoidal signal generator, an electrode, a current-voltage conversion module, a filtering and amplifying module; the filtering and amplifying module is connected to the acquisition and control system and constitutes a feedback system.
  • the signal processing module includes pulse wave, skin resistance, real-time display of skin temperature signal, online time-length storage, and data playback; skin conductance baseline adjustment command transmission.
  • a child physiological parameter collection and emotion detection system the steps are as follows:
  • the pulse wave sensor to the radial artery of the subject with a bandage, and fix the skin resistance electrode to the first level of the index finger and middle finger of the subject.
  • the skin temperature sensor is fixed to the forehead of the subject with a bandage;
  • the upper computer analysis system detects and stores the response curve of the three physiological parameters of the test in real time;
  • the invention has the beneficial effects that the emotion-related physiological parameters can be accurately measured, and the utility model has the advantages of convenient carrying and wearing, low power consumption, long-term storage, convenient use and easy operation. Applicable to on-the-spot assessments such as sentiment analysis, psychoanalysis, intelligence and potential.
  • the invention provides a child physiological parameter collection and emotion detection system, comprising: a data acquisition module, a signal processing module and a data transceiver module, wherein the data acquisition module comprises a biometric sensor, a skin conduction value sensor, an electrocardiographic signal detection sensor, Filter amplification module, A/D conversion module power module, skin temperature measurement module, skin resistance measurement module, pulse measurement module, display module, acquisition control module, spectral sensor capable of measuring blood oxygen, pressure and glucose level, used to measure sweat Level and pH skin electric response sensor, ultraviolet index sensor; wherein the biometric sensor includes accelerometer, gyroscope, magnetometer, pressure sensor, skin temperature measuring module, skin resistance measuring module, pulse measuring module, display module They are respectively connected to the acquisition control module, and the data transceiver module is connected: a data acquisition module and a signal processing module.
  • the data acquisition module comprises a biometric sensor, a skin conduction value sensor, an electrocardiographic signal detection sensor, Filter amplification module, A/D conversion module power module, skin temperature measurement module
  • the skin temperature measurement module circuit can accurately measure skin temperature.
  • the circuit consists of a thermocouple, a thermocouple conditioning core U, an op amp U, and a resistor capacitor.
  • the skin resistance measuring module can measure the skin electrical response.
  • the sinusoidal signal generator produces a sine wave with a frequency of 75hz and an amplitude of 300mv.
  • the sinusoidal signal is output to the electrode, and the signal at the other end of the electrode is converted by current-voltage, filtered and amplified, and sent to the acquisition and control system.
  • There is a feedback system in the module Since the skin resistance varies greatly from individual to individual, the feedback system can ensure that the output of the skin resistance measurement system is within a suitable range. Can be applied to different subjects.
  • the pulse measuring circuit sensor uses a vinylidene fluoride (PVDF) material to detect the brachial artery pulse wave, and has the characteristics of high detection sensitivity and good stability.
  • PVDF vinylidene fluoride
  • the measurement control module circuit is composed of a crystal oscillator circuit and a processor chip.
  • the signal processing module includes pulse wave, skin resistance, real-time display of skin temperature signal, online time-length storage, and data playback; skin conductance baseline adjustment command transmission.
  • the host computer program receives the data of the lower computer through Bluetooth, it performs real-time display and storage operations, and can also adjust the skin conductance baseline according to requirements, and can also play back historical data.
  • the invention can be applied to the detection of actual emotion-related physiological parameters, and the detection process is as follows:
  • the skin temperature sensor is fixed to the forehead of the subject with a bandage. According to the condition of the signal
  • the detection system displays and saves the response curves of the three physiological parameters of the test in real time.
  • the system combines physiological signals to make emotion recognition.
  • the design uses AD7656 analog-to-digital conversion chip.
  • the chip has 6 independent ADCs for parallel sampling, and the throughput rate can reach 250kbps.
  • the MCU passes the data through the wireless communication module, extracts the characteristics of the physiological signal by using the wavelet transform in the upper computer, and then recognizes the current emotion through the judgment of Fisher and Bayes.
  • the current emotion value will be transmitted to the data of the lower computer through the wireless, real-time display and storage operations, etc., the skin conductance baseline can be adjusted according to requirements, and the historical data can be played back.
  • the wireless communication module uses Zigbee, and its transmission rate of up to 250kbps can realize data processing.

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Abstract

一种儿童生理参数采集与情绪检测系统，包括：数据采集模块、信号处理模块和数据收发模块，其中数据采集模块包括由生物识别传感器、皮肤传导值传感器、心电信号检测传感器、滤波放大模块、A/D转换模块、电源模块、皮肤温度测量模块、皮肤电阻测量模块、脉搏测量模块、显示模块、采集控制模块、可测量血氧、压力和葡萄糖水平的光谱传感器、用来测定汗水水平和pH值的肤电反应传感器、紫外线指数传感器；其中生物识别传感器中包括加速度计、陀螺仪、磁强计、压力传感器；皮肤温度测量模块、皮肤电阻测量模块、脉搏测量模块、显示模块分别与采集控制模块相连，数据收发模块连接数据采集模块和信号处理模块。

Description

一种儿童生理参数采集与情绪检测系统 技术领域
本发明涉及生理检测技术领域，尤其涉及一种儿童生理参数采集与情绪检测系统。
背景技术
情绪是我们智力的基础，也是人类道德与尊严的基础。随着认知神经科学与情感神经科学的发展，越来越多的证据表明，情绪是推理和判断过程中必不可少的一部分，并对各个成长时期的学习和记忆过程产生重要的影响。其中儿童时期的情绪变化尤为重要，在成长过程中若没有得到正确的心理指引和情绪上的关注，可能导致其在青少年时期的自闭、自卑和逆反心理。因此，我们提倡情绪监督要从儿童时期做起。虽然情绪是一种主观意识，但情绪状态的变化总会伴随一定的生理变化，因而，我们可以从生理参数的角度，以儿童作为检测对象，用一套客观的评价标准来研究情绪状态。
情绪活动的主要生理指标有：
①皮肤电反应：其机理是情绪状态在变化时，皮肤内血管的舒张和收缩以及汗腺分泌等变化，能引起皮肤电阻的变化。皮肤电反应仪就是以此来测量植物神经系统的情绪反应。
②循环系统指标(如心电、血管容积、血压等)：心电(脉搏)是情绪反应的良好生理指标之一，在满意和愉快时，心跳正常；而处于紧张、恐惧或暴怒状态时，心跳加速。血管容积的变化是由自主神经系统控制动脉壁平滑肌收缩和舒张所造成的，即由局部血管收缩和舒张引起的。人的某些情绪状态如紧张的脑力工作、生气、害怕、新异刺激等，都可以引起皮肤血管的收缩；当人感到为难或羞耻时，会引起皮肤血管的舒张。血压变化是和血管容积相关联的，都反映了循环系统的活动情况有着近似的生理机制。
③呼吸：随着情绪状态的变化，呼吸系统的活动在速度和深度上会有所改变。对剧痛的情绪反应往往会使呼吸加深加快；突然惊恐时，呼吸会发生临时中断；狂喜或悲痛时，会发生呼吸痉挛现象。
④语音：其原理是人的发音器官在气流通过时，因气流对发声管道的碰撞而发出轻微的颤动。人处于紧张情绪状态时，发音器官的正常颤动被抑制。人说话时，其发音的颤动不能人为地随意加以控制(能够捕捉真实的情绪变化)。但是这种方法目前已渐渐被淘汰，取而代之的是一种更先进的计算机识别模式。它运用混合高斯模型法(GMM)、主元分析方法(PCA)和人工神经网络方法(ANN)进行语音情感的分析和识别，主要是通过分析语音信号中的语速、基音的均值、基音的变化范围、强度、基音的平均变化率与第一共振峰的均值和变化范围等参数来识别情感。
⑤脑电波
⑥其他生理指标(如体温、血氧等)。
现有的生理参数检测仪大多是针对医学上的应用，一般放置于医院中用于了解患者的身体状况。此外，这些仪器体积庞大，传感器佩戴复杂，不方便携带和使用。本发明针对的应用是情绪相关的研究，可以准确的测量情绪相关生理参数，具有携带佩戴方便，低功耗可以长时间存储，使用方便易操作等特点。适用 于情绪分析，心理分析，智力及潜能等方面的研究，也适用于家用和个人用途。
发明内容
本发明的目的在于提供一种儿童生理参数采集与情绪检测系统，通过记录伴随情绪发生的生理变化，如心电、血管收缩、皮肤电反应等活动，对儿童情绪状态与认知活动进行观察与研究，了解他们的发育水平和个体差异，帮助他们正确处理情感交流和智力发育过程中出现的问题。
本发明提供了一种儿童生理参数采集与情绪检测系统，包括：数据采集模块、信号处理模块和数据收发模块，其中数据采集模块包括由生物识别传感器、皮肤传导值传感器、心电信号检测传感器、滤波放大模块、A/D转换模块电源模块、皮肤温度测量模块、皮肤电阻测量模块、脉搏测量模块、显示模块、采集控制模块、可测量血氧、压力和葡萄糖水平的光谱传感器、用来测定汗水水平和pH值的肤电反应传感器、紫外线指数传感器；其中生物识别传感器中包括加速度计、陀螺仪、磁强计、压力传感器、；皮肤温度测量模块、皮肤电阻测量模块、脉搏测量模块、显示模块分别与采集控制模块相连，数据收发模块连接：数据采集模块和信号处理模块。
所述的皮肤温度测量模块电路可以准确的测量皮肤温度。电路由热电偶、一个热电偶调理芯U、一个运放U和电阻电容组成。所述的皮肤电阻测量模块可以测量皮肤电反应。正弦信号发生器产生频率为75hz，幅值为300mv的正弦波，该正弦信号输出至电极，电极另一端的信号经过电流-电压转化，并经过滤波和放大，送至采集和控制系统。该模块中存在一个反馈的系统，由于皮肤电阻随个体的不同而差异较大，反馈系统可以保证皮肤电阻测量系统的输出在一个合适的范围内。可以适用于不同的被试。
所述的脉搏测量电路传感器采用的是偏氟乙烯(PVDF)材料对桡动脉脉搏波进行检测，具有检测灵敏度高，稳定性好的特点。
所述的测量控制模块电路由晶振电路，处理器芯片构成。
所述的信号处理模块包括脉搏波，皮肤电阻，皮肤温度信号的实时显示，在线定时长存储，和数据的回放；皮肤电导基线调整命令的发送。
所述的信号处理模块通过蓝牙接收到下位机的数据后，进行实时显示和存储等操作，也可以根据需求对皮肤电导基线进行调整，也可以对历史数据进行回放。
所述的皮肤电阻测量模块包括顺次相连的正弦信号发生器、电极、电流-电压转化模块、滤波和放大模块；滤波和放大模块与采集和控制系统相连并构成反馈系统。
所述的信号处理模块包括脉搏波，皮肤电阻，皮肤温度信号的实时显示，在线定时长存储，和数据的回放；皮肤电导基线调整命令的发送。
一种儿童生理参数采集与情绪检测系统，步骤如下：
1)记录被试的年龄、性别和健康状况基本信息；
2)用绷带将脉搏波传感器固定在被试的桡动脉出，将皮肤电阻电极固定在被试食指和中指的第一关 节处，用绷带将皮肤温度传感器固定在被试的额头部位；
3)给予被试刺激，或者给予被试一些任务，在这个过程中检测上位机分析系统实时显示并保存被试三个生理参数的响应曲线；
4)对保存的数据进行脉率的计算，波形的微分，求平均值处理。
本发明的有益效果是，可以准确的测量情绪相关生理参数，具有携带佩戴方便，低功耗可以长时间存储，使用方便易操作等特点。适用于情绪分析，心理分析，智力及潜能等现场评定。
具体实施方式
下面将对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明提供了一种儿童生理参数采集与情绪检测系统，包括：数据采集模块、信号处理模块和数据收发模块，其中数据采集模块包括由生物识别传感器、皮肤传导值传感器、心电信号检测传感器、滤波放大模块、A/D转换模块电源模块、皮肤温度测量模块、皮肤电阻测量模块、脉搏测量模块、显示模块、采集控制模块、可测量血氧、压力和葡萄糖水平的光谱传感器、用来测定汗水水平和pH值的肤电反应传感器、紫外线指数传感器；其中生物识别传感器中包括加速度计、陀螺仪、磁强计、压力传感器、；皮肤温度测量模块、皮肤电阻测量模块、脉搏测量模块、显示模块分别与采集控制模块相连，数据收发模块连接：数据采集模块和信号处理模块。
所述的皮肤温度测量模块电路可以准确的测量皮肤温度。电路由热电偶、一个热电偶调理芯U、一个运放U和电阻电容组成。所述的皮肤电阻测量模块可以测量皮肤电反应。正弦信号发生器产生频率为75hz，幅值为300mv的正弦波，该正弦信号输出至电极，电极另一端的信号经过电流-电压转化，并经过滤波和放大，送至采集和控制系统。该模块中存在一个反馈的系统，由于皮肤电阻随个体的不同而差异较大，反馈系统可以保证皮肤电阻测量系统的输出在一个合适的范围内。可以适用于不同的被试。
所述的脉搏测量电路传感器采用的是偏氟乙烯(PVDF)材料对桡动脉脉搏波进行检测，具有检测灵敏度高，稳定性好的特点。
所述的测量控制模块电路由晶振电路，处理器芯片构成。
所述的信号处理模块包括脉搏波，皮肤电阻，皮肤温度信号的实时显示，在线定时长存储，和数据的回放；皮肤电导基线调整命令的发送。上位机程序通过蓝牙接收到下位机的数据后，进行实时显示和存储等操作，也可以根据需求对皮肤电导基线进行调整，也可以对历史数据进行回放。
本发明可用于实际的情绪相关生理参数的检测，检测过程如下：
1)记录被试的年龄、性别和健康状况等基本信息；
2)用绷带将脉搏波传感器固定在被试的桡动脉出，将皮肤电阻电极固定在被试食指
和中指的第一关节处，用绷带将皮肤温度传感器固定在被试的额头部位。根据信号的状况
进行一些调整；
3)给予被试刺激，或者给予被试一些任务。在这个过程中检测系统实时显示并保存被试三个生理参数的响应曲线。
工作过程：系统根据生理信号相互融合来做出情绪识别，设计采用AD7656模数转换芯片，该芯片有6个独立的ADC进行并行采样，吞吐率可达250kbps。MCU获得AD数据后，将数据通过无线通信模块，在上位机用小波变换提取了生理信号的特征，再通过Fisher和Bayes判断识别出当前情绪。情绪被上位机识别后，当前的情绪值也会通过无线传递到下位机的数据后，进行实时显示和存储等操作，也可以根据需求对皮肤电导基线进行调整，也可以对历史数据进行回放，无线通信模块选用Zigbee，其高达250kbps的传输率可以实现数据处理。

Claims (7)

  1. 一种儿童生理参数采集与情绪检测系统，包括：数据采集模块、信号处理模块和数据收发模块，其中数据采集模块包括由生物识别传感器、皮肤传导值传感器、心电信号检测传感器、滤波放大模块、A/D转换模块电源模块、皮肤温度测量模块、皮肤电阻测量模块、脉搏测量模块、显示模块、采集控制模块、可测量血氧、压力和葡萄糖水平的光谱传感器、用来测定汗水水平和pH值的肤电反应传感器、紫外线指数传感器；其中生物识别传感器中包括加速度计、陀螺仪、磁强计、压力传感器、；皮肤温度测量模块、皮肤电阻测量模块、脉搏测量模块、显示模块分别与采集控制模块相连，数据收发模块连接：数据采集模块和信号处理模块。
  2. 根据权利要求1所述的检测系统，其特征在于：皮肤温度测量模块电路可以准确的测量皮肤温度,包括电路由热电偶、一个热电偶调理芯U、一个运放U和电阻电容组成，所述的皮肤电阻测量模块可以测量皮肤电反应，正弦信号发生器产生频率为75hz，幅值为300mv的正弦波，该正弦信号输出至电极，电极另一端的信号经过电流-电压转化，并经过滤波和放大，送至采集和控制系统，该模块中存在一个反馈的系统，由于皮肤电阻随个体的不同而差异较大，反馈系统可以保证皮肤电阻测量系统的输出在一个合适的范围内。
  3. 根据权利要求1所述的检测系统，其特征在于：脉搏测量电路传感器采用的是偏氟乙烯(PVDF)材料对桡动脉脉搏波进行检测，具有检测灵敏度高，稳定性好的特点。
  4. 根据权利要求1所述的检测系统，其特征在于：所述的测量控制模块电路由晶振电路，处理器芯片构成。
  5. 根据权利要求1所述的检测系统，其特征在于：所述的信号处理模块通过蓝牙接收到下位机的数据后，进行实时显示和存储等操作，也可以根据需求对皮肤电导基线进行调整，也可以对历史数据进行回放。
  6. 根据权利要求1所述的检测系统，其特征在于：所述的皮肤电阻测量模块包括顺次相连的正弦信号发生器、电极、电流-电压转化模块、滤波和放大模块；滤波和放大模块与采集和控制系统相连并构成反馈系统。
  7. 根据权利要求1所述的检测系统，其特征在于：所述的信号处理模块包括脉搏波，皮肤电阻，皮肤温度信号的实时显示，在线定时长存储，和数据的回放；皮肤电导基线调整命令的发送。
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