Cloud-Based Data Storage System for eHealth Smart Devices

The availability of cloud storage and data processing providers opens the opportunity to use them with instrumented smart devices in the field of eHealth and eRehabilitation. This work presents the current development of a system comprising a software and a prototype of an instrumented device for assessing the force-time behaviour during a handgrip strength test. The hardware dynamometer connects wirelessly with a software application running on an Android device. The developed App provides the user interface to operate with the system, allowing the graphical view of the test results and connecting to a cloud-based data storage. The Firebase platform, from Google, is used. The App provides the definition of the handgrip test time and the graphical view of the force-time curve. In the end of the test, other force-time parameters, computed from the acquired data, are displayed. This system provides a start concept for an application that can be expanded to support other instrumented devices. It is used both as an interface to operate a device and for data cloud storage, easing the procedure to store, process and share data.