WWBS Metrics
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The dataset consists of recordings acquired from a sensorized WWBS smart-vest garment (developed by the project's partner SMARTEX), which the older adults wear during their daily routine. The garment is equipped with electrodes for ECG monitoring, a piezoresistive sensor for respiration monitoring, and Inertial Measurement Units (IMUs) for movement and posture monitoring. Each recording consists of a series of channels, and each recording channel is a pair of [Timestamp, Value] columns. The full list of recording channels is described below: - Part_id: User ID, a 4-digit number, serving as the file name for each user's data - ECG: Electric signal measuring the ECG (value: 0.8 mV - sampling rate: 250Hz) - ECGquality: ECG signal quality (value: 0-255 where 0=poor and 255=excellent - sampling rate: 1/5 sec) - ECGHR: Heart rate (value: Beats/minute - sampling rate: 1/5 sec) - ECGRR: R-R intervals (value: number of samples between R-R peaks - sampling rate:1/5 sec) - ECGHRV: Heart rate variability (value: ms - sampling rate: 1/60 sec) - AccX-Y-Z: Accelerometer in X-Y-Z axes (value: 0.97 10-3 g - sampling rate: 25 Hz) - GyroX-Y-Z: Gyroscope in X-Y-Z axes (value: 0.122 °/s - sampling rate: 25 Hz) - MagX-Y-Z: Magnetometer in X-Y-Z axes (value: 0.6 µT - sampling rate: 25 Hz) - RespPiezo: Electric signal measuring the chest pressure on the piezoelectric point (value: 0.8 mV - sampling rate: 25 Hz) - RespQuality: Respiration signal quality (value: 0-255 where 0=poor and 255=excellent - sampling rate: 1/5 sec) - BR: Breathing rate (value: Breaths/minute - sampling rate: 1/5 sec) - BA: Breathing Amplitude (value: logic levels - sampling rate: 1/15 sec) - Activityenergy: estimation of energy activity (value: estimation where 0=no activity and 255=max of activity - sampling rate: 1/5 sec) - Activityclass: Activity performed (value: 0-4 where 0=other, 1=lying, 2=standing/sitting, 3=walking and 4=running - sampling rate: 1/5 sec) - Activity1Pace: Step period (value: ms- sampling rate: 1 Hz) - ActivityPace: Pace (value: steps/min - sampling rate: 1/5 sec) - Q0-Q1-Q2-Q3: Quaternions from main electronic device, i.e. Q0, Q1, Q2, Q3 components (value: Q14 format - sampling rate: 25 Hz) - QEL0-QEL1-QEL2-QEL3: Quaternions from external left arm device, i.e. Q0, Q1, Q2, Q3 components (value: Q14 format - sampling rate: 25 Hz) - QER0-QER1-QER2-QER3: Quaternions from external right arm device, i.e. Q0, Q1, Q2, Q3 components (value: Q14 format - sampling rate: 25 Hz)
本数据集由项目合作方SMARTEX研发的传感式WWBS智能背心采集得到,老年受试者在日常活动期间穿戴该背心开展数据采集。该背心搭载了用于心电图(Electrocardiogram, ECG)监测的电极、用于呼吸监测的压阻式传感器,以及用于运动与姿态监测的惯性测量单元(Inertial Measurement Units, IMU)。每份采集数据包含多个通道,每个通道均由时间戳与数值两列组成,数据行格式为[时间戳, 数值]。完整的采集通道列表如下: - Part_id:用户ID,为4位数字,同时作为每位用户对应数据的文件名 - ECG:心电图信号(数值范围:0.8 mV,采样率:250Hz) - ECGquality:心电图信号质量(数值范围:0~255,0代表质量极差,255代表质量极佳,采样率:1/5秒) - ECGHR:心率(单位:次/分钟,采样率:1/5秒) - ECGRR:R-R间期(数值为R波峰值间的采样点数,采样率:1/5秒) - ECGHRV:心率变异性(单位:毫秒,采样率:1/60秒) - AccX-Y-Z:X/Y/Z三轴加速度计数据(数值单位:0.97×10⁻³ g,采样率:25Hz) - GyroX-Y-Z:X/Y/Z三轴陀螺仪数据(数值单位:0.122 °/s,采样率:25Hz) - MagX-Y-Z:X/Y/Z三轴磁力计数据(数值单位:0.6 µT,采样率:25Hz) - RespPiezo:压电式胸压检测电信号(数值范围:0.8 mV,采样率:25Hz) - RespQuality:呼吸信号质量(数值范围:0~255,0代表质量极差,255代表质量极佳,采样率:1/5秒) - BR:呼吸频率(单位:次/分钟,采样率:1/5秒) - BA:呼吸幅度(为逻辑电平值,采样率:1/15秒) - Activityenergy:活动能量估计值(数值范围:0~255,0代表无活动,255代表最大活动强度,采样率:1/5秒) - Activityclass:当前执行的活动类型(数值范围:0~4,0代表其他活动,1代表躺卧,2代表站立/坐姿,3代表行走,4代表跑步,采样率:1/5秒) - Activity1Pace:步周期(单位:毫秒,采样率:1Hz) - ActivityPace:步频(单位:步/分钟,采样率:1/5秒) - Q0-Q1-Q2-Q3:主电子设备采集的四元数数据,包含Q0、Q1、Q2、Q3分量(数值格式:Q14,采样率:25Hz) - QEL0-QEL1-QEL2-QEL3:左臂外置设备采集的四元数数据,包含Q0、Q1、Q2、Q3分量(数值格式:Q14,采样率:25Hz) - QER0-QER1-QER2-QER3:右臂外置设备采集的四元数数据,包含Q0、Q1、Q2、Q3分量(数值格式:Q14,采样率:25Hz)



