McConville Ryan, Byrne Dallan, Craddock Ian, Piechocki Robert, Pope James, Santos-Rodriguez Raul
University of Bristol, United Kingdom.
Data Brief. 2019 Jan 19;22:1044-1051. doi: 10.1016/j.dib.2019.01.040. eCollection 2019 Feb.
An annotated dataset of measurements obtained using the EurValve Smart Home In a Box (SHIB) rehabilitation monitoring system is presented. The SHiB is a low cost and easily deployable kit designed to collect data from a wrist-worn wearable in a home environment. The data presented is intended to evaluate room level indoor localization methods. The wearable device registers tri-axial accelerometer measurements which are sampled and transmitted as the payload of a Bluetooth Low Energy (BLE) packet. Four receiving gateways, each placed in a different room throughout a typical residential house, extract the accelerometer data and determine a Received Signal Strength Indicator (RSSI) for each received BLE packet. RSSI values can represent propagation losses due to distance or shadowing between the wearable transmitter and the gateway receiver. The dataset is presented in two parts. The first is composed of four calibration or training sequences, carried out by ten participants to offer ground truth calibrations for four rooms in the house. We refer to the calibration phase as the steps taken to gather training data. The calibration procedure was designed to be as straight-forward as possible, to allow a participant to adequately train the SHiB system without supervision. Ten participants each carried out a straight forward calibration procedure once, with four participants carrying out the calibration twice, on different occasions. One participant carried out the calibration on a third occasion. The second part of the data consists of a free-living experiment that was carried out over a period of five and a half hours starting at 7.37 a.m. Of this, one and a half hours of measurements are recorded within a room containing a gateway, where one participant carried out activities of daily living while their ground-truth location was accurately annotated within each room with a gateway present. The calibration data can be used as a training scheme and the living data as a test scenario. The dataset can be found at https://github.com/rymc/a-dataset-for-indoor-localization-using-a-smart-home-in-a-box.
本文展示了一个注释数据集,该数据集是使用EurValve智能家居一体机(SHIB)康复监测系统获得的测量数据。SHIB是一种低成本且易于部署的套件,旨在在家庭环境中从腕戴式可穿戴设备收集数据。所呈现的数据旨在评估房间级室内定位方法。可穿戴设备记录三轴加速度计测量值,这些测量值作为低功耗蓝牙(BLE)数据包的有效载荷进行采样和传输。四个接收网关分别放置在典型住宅的不同房间中,提取加速度计数据并为每个接收到的BLE数据包确定接收信号强度指示(RSSI)。RSSI值可表示由于可穿戴发射器与网关接收器之间的距离或阴影导致的传播损耗。该数据集分为两部分。第一部分由四个校准或训练序列组成,由十名参与者进行,为房屋中的四个房间提供地面真值校准。我们将校准阶段称为收集训练数据所采取的步骤。校准程序设计得尽可能简单,以便参与者在无监督的情况下充分训练SHIB系统。十名参与者每人进行一次简单的校准程序,四名参与者在不同场合进行了两次校准。一名参与者在第三次场合进行了校准。数据的第二部分包括一个自由生活实验,该实验从上午7点37分开始,持续了五个半小时。其中,在一个包含网关的房间内记录了一个半小时的测量数据,一名参与者在该房间内进行日常生活活动,同时他们的地面真值位置在每个有网关的房间内都被准确标注。校准数据可用作训练方案,生活数据可用作测试场景。该数据集可在https://github.com/rymc/a-dataset-for-indoor-localization-using-a-smart-home-in-a-box上找到。