ecg-polar-h10-set3

Single-lead ECG tracings along with heart rate and 3-axis chest actigraphy using a Polar H10 sensor worn with on a Polar Pro chest strap, with data transferred via bluetooth to an Android smartphone (Realme 6i) that serves as a bluetooth receptor unit and data recorder via the Polar Sensor Logger app on Android by Jukka Happonen (Polar developer, this app is unofficial): https://play.google.com/store/apps/details?id=com.j_ware.polarsensorlogger Data was compressed with 7-zip using LZMA2 in Normal compression setting and split into 5GB parts to respect the file size limit of figshare. Total is 20 GB compressed, 82.1 GB uncompressed. This dataset covers the period from 2021-04-21 to 2021-07-12. There is no overlap with previous sets, this is the continuation. See other sets for further data. This wearable was only worn when at home. Each file represents one acquisition session, of variable time up to 140h in one session. The acquisition software also split files when the device is temporarily out of reach, so there several files with very few entries, which means the device was barely reachable or went in and out of bluetooth range. These files can be concatenated to study a longer time period. There are 4 types of files: ECG for the raw ECG at 133Hz sampling rate, HR for the heart-rate computed by the proprietary Polar embedded software in the H10 sensor and also the IBI (inter-beats intervals) to ease calculation of HRV (heart rate variability), ACC for the 3-axis (accelerometer = translation axes) chest actigraphy set at 100Hz sampling rate and 4g sampling resolution, and Marker which are manual markers by the operator to mark special temporal events but they were not used for this study so they are either deleted or empty. For the full technical specification of the Polar H10 device, see: https://github.com/polarofficial/polar-ble-sdk/tree/master/technical_documentation

本数据集包含单导联心电图（ECG）波形、心率数据，以及通过佩戴Polar Pro胸带的Polar H10传感器采集的三轴胸部活动记录仪数据。数据通过蓝牙传输至作为蓝牙接收与记录终端的Android智能手机（Realme 6i），采集过程由Jukka Happonen（Polar开发者）开发的非官方Android应用Polar Sensor Logger完成，该应用下载地址为：https://play.google.com/store/apps/details?id=com.j_ware.polarsensorlogger。

数据集采用7-Zip以LZMA2算法并设置正常压缩模式进行压缩，并拆分为单文件5GB的分卷以适配Figshare的文件大小限制，压缩后总容量为20GB，解压后总容量为82.1GB。

本数据集覆盖2021年4月21日至2021年7月12日的时间段，与此前发布的数据集无重叠，属于后续补充数据集，更多相关数据可参考其他数据集集合。

该可穿戴设备仅在居家场景下佩戴。每个文件对应一次采集会话，单次会话最长时长可达140小时。当设备暂时脱离蓝牙连接范围时，采集软件会自动拆分文件，因此存在少量条目极少的文件，此类文件对应设备几乎无法被捕捉或频繁进出蓝牙连接范围的场景，此类文件可通过拼接以分析更长时间段的数据。

本数据集包含4类文件：
1. ECG文件：采样率为133Hz的原始心电图数据；
2. HR文件：由Polar H10传感器内置专有软件计算得到的心率数据，同时包含心搏间期（IBI）数据，可简化心率变异性（HRV）的计算流程；
3. ACC文件：三轴胸部活动记录仪数据，即加速度计（accelerometer，对应平移轴）数据，采样率为100Hz，采样分辨率为4g；
4. Marker文件：由操作人员手动标记的特殊时间事件标记，但本研究未使用该类数据，因此此类文件要么已被删除，要么为空。

如需了解Polar H10设备的完整技术规格，请访问：https://github.com/polarofficial/polar-ble-sdk/tree/master/technical_documentation

搜集汇总

背景与挑战

背景概述

该数据集包含使用Polar H10传感器收集的单导联心电图、心率和3轴胸部活动数据，通过蓝牙传输到Android设备记录。数据覆盖2021年4月至7月，压缩后总大小为20 GB，适用于心电图和活动监测研究。