We present WEARDA, the open source WEARable sensor Data Acquisition software package. WEARDA facilitates the acquisition of human activity data with smartwatches and is primarily aimed at researchers who require transparency, full control, and access to raw sensor data. It provides functionality to simultaneously record raw data from four sensors -- tri-axis accelerometer, tri-axis gyroscope, barometer, and GPS -- which should enable researchers to, for example, estimate energy expenditure and mine movement trajectories. A Samsung smartwatch running the Tizen OS was chosen because of 1) the required functionalities of the smartwatch software API, 2) the availability of software development tools and accessible documentation, 3) having the required sensors, and 4) the requirements on case design for acceptance by the target user group. WEARDA addresses five practical challenges concerning preparation, measurement, logistics, privacy preservation, and reproducibility to ensure efficient and errorless data collection. The software package was initially created for the project "Dementia back at the heart of the community", and has been successfully used in that context.

翻译：我们介绍了WEARDA，这是一个开源的可穿戴传感器数据采集软件包。WEARDA旨在利用智能手表获取人体活动数据，主要面向需要透明度、完全控制权以及原始传感器数据访问权限的研究人员。该软件包提供同时记录四种传感器原始数据的功能——三轴加速度计、三轴陀螺仪、气压计和GPS，这应能使研究人员能够例如估算能量消耗和挖掘运动轨迹。选择运行Tizen OS的三星智能手表基于以下原因：1）智能手表软件API具备所需功能；2）软件开发工具及可查阅文档的可用性；3）拥有所需传感器；4）目标用户群体对外壳设计的要求。WEARDA解决了关于准备、测量、后勤、隐私保护与可重复性这五个实际挑战，以确保数据收集的高效性与无差错性。该软件包最初为“让痴呆症回归社区核心”项目创建，并已在该场景中成功应用。