Wearable Sensor Synchronization for Signal Interference
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Solution Overview
Problem
Existing wearable medical devices are not suitable for comprehensive health monitoring due to interference between active and passive sensors, require multiple devices for different data types, are prone to moisture damage, fragile, and lack alert functionality for medical emergencies.
Innovation Solution
A wearable health monitor with a synchronization module to minimize data corruption from active sensors, using multiplexing techniques like FDMA, CDMA, OFDMA, or SDMA, and a connection module for wireless data sharing, along with inductive charging and an event button for alerts, enabling real-time remote monitoring and data storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple sensor types (active and passive) are co-located on a single device to gather various biometric data types, then device versatility is improved, but signal interference between sensors increases causing data corruption
Solution Approach 1:
The patent segments the sensor operations into distinct time slots using time-division multiplexing. Active sensors transmit during specific time intervals when passive sensors are not sampling, and vice versa. This temporal segmentation allows multiple sensor types to coexist on the same device without mutual interference, resolving the contradiction between versatility and data integrity.
Solution Approach 2:
The synchronization module implements periodic alternating operation between active and passive sensors. The system cycles through designated time slots where active sensors perform transmissions during certain periods, and passive sensors sample during other periods. This periodic action ensures that no two sensor types operate simultaneously, eliminating signal interference while maintaining comprehensive monitoring capability.
2Adaptability or versatility
If multiple separate wearable devices are used to monitor different health parameters, then measurement coverage is improved, but device complexity and inventory requirements increase
Solution Approach 1:
The patent merges multiple sensor types (ECG, respiration, activity, sleep sensors) into a single integrated wearable device. The synchronization module coordinates these diverse sensors to operate without interference, combining the functionality of what would traditionally require multiple separate devices. This consolidation reduces inventory requirements while maintaining comprehensive health monitoring coverage.
Solution Approach 2:
The single wearable device is designed with universal functionality to perform multiple monitoring tasks simultaneously. The synchronization module enables the device to universally handle various biometric measurements by time-multiplexing different sensor types, making one device capable of replacing multiple specialized devices while maintaining all necessary measurement capabilities.
3Productivity
If active sensors transmit signals continuously to enable real-time monitoring, then monitoring capability is improved, but interference with passive sensors increases
Solution Approach 1:
The synchronization module implements periodic alternating transmission between active and passive sensors. Active sensors transmit during designated time slots when passive sensors are not sampling, and passive sensors operate during slots when active sensors remain inactive. This periodic action maintains continuous monitoring capability while preventing signal interference through temporal separation of operations.
Solution Approach 2:
The system maintains continuous monitoring through continuous coordination of sensor operations. The synchronization module ensures that at least one sensor type is always operational (either active or passive), maintaining uninterrupted monitoring capability. The periodic switching between sensor types ensures continuous useful action without interference, as the coordination protocol guarantees overlapping operational windows are properly managed.
Data Source
AI summary
A wearable health sensor and methods of operating the same are herein described, the wearable health sensor and methods of operation having a variety of clinical and non-clinical uses.