Prototype for Reliable Offline and Tactical Environment Connectivity for Operational Readiness (PROTECtOR) Version 3

In Phase I, Oura will scope, evaluate feasibility and design the following features to align Oura’s PROTECtOR solution with the specifications outlined in Advanced Wearable Integration and Synchronization Hub (AWISH) topic, enabling the Navy to expand the use of a wearable-based fatigue monitoring and management solution. Oura proposes to develop a standalone hub system, consisting of a network of COTS tablets and a light-weight server component. Tablets within the PROTECtOR solution will pair and connect with Oura Rings, without the requirement for interaction with Oura’s commercial cloud, and can collect and transmit a comprehensive biomedical dataset that can be used for early identification of fatigue and sleep deficiency and mitigation, including total sleep time, total time in bed, sleep efficiency, sleep staging hypnogram, resting heart rate, heart rate variability, and more. In addition to potential future Oura form factors, wrist-worn wearables from other suppliers, such as PowerWatch, Garmin, or similar would be scoped for integrating into PROTECtOR, expanding the compatible wearable devices catalog. All processed data from wearables is securely stored locally on the COTS tablet, as well as pushed to downstream data management systems for further analysis and processing—enabling fatigue algorithms and scheduling systems to leverage the data. Oura will consult with downstream system designers identified by the TPOC in the scoping of data export to ensure the PROTECtOR solution is compatible and complementary with downstream systems. By using COTS tablets, hubs also have internal storage and battery, making the PROTECtOR solution capable of running and collecting data in the event of a loss of power or loss of connection to the onboard network. Once power and or network connectivity is restored, any data since last uptime will be pushed to the network. Additionally, by allowing each individual hub to be responsible for pushing data to the downstream data management systems independently, this architecture avoids a primary hub bottleneck and single point of failure for data collection, and keeps the system requirements for any light-weight server component to a minimum. This effort will incorporate plans to improve the connectivity and data transfer capabilities of a disconnected hub solution. The target sync transfer time using PROTECtOR will be 10 seconds. For reference, the current prototype takes 15 seconds to sync 24 hours of wear data from Oura Ring to a COTS tablet. Sync transfer time is dependent on the amount of unsynced data on the wearable, and this solution will minimize data transfer when the user moves between hub points by coordinating the last sync time across all hubs. Data throughput improvements through concurrent syncing from multiple devices to the hub(s)will also be investigated. Any integrated wrist-worn wearables will be similarly investigated to meet the 10 second sync duration target.