BITS-2 Dataset for Fall Detection

Data was collected using a custom-built wrist-worn end worn on the left wrist. Qualcomm Snapdragon 820c. We used MAX30102 Heart rate and SP02 sensor, MPU6500, which gives 3-axis acceleration, 3-axis linear acceleration and 3-axis gyroscope data and GY273 Magnetometer chip for data collection. All the sensors are interfaced to the SoC via the I2C interface using a Mezzanine board. Table, each table having six columns, time-stamp, x-axis data, y-axis data and z-axis data, number of axes and type of sensor(label) except in case of heart-rate where there will be only three columns, time-stamp, beats per minute and label (hrt for heart-rate) In this data set, the data was collected from a total of 41 volunteers performing 16 ADLs and 8 Falls. Every activity was repeated for five trials.本数据集采用定制的左手腕穿戴式设备采集所得，搭载高通骁龙820c（Qualcomm Snapdragon 820c）处理器。本次数据采集使用了MAX30102心率与血氧饱和度（SP02）传感器、可采集三轴加速度、三轴线性加速度及三轴陀螺仪数据的MPU6500传感器，以及GY273磁力计芯片。所有传感器均通过夹层板（Mezzanine board）以I2C接口连接至系统级芯片（SoC）。 数据集采用表格形式存储，每张数据表包含六列字段：时间戳、X轴数据、Y轴数据、Z轴数据、轴数以及传感器类型（标签）；但心率相关数据表除外，此类表格仅包含三列：时间戳、每分钟心跳数以及标签（心率数据对应的标签为hrt）。 本数据集共从41名志愿者处采集数据，志愿者需完成16项日常活动（ADLs）与8类跌倒行为，每项活动均重复进行5次测试。