Wearable Sweat Loss Estimation Using Exercise and Sweat Timing

The patent segments the sweat loss estimation process into multiple independent measurement components: exercise detection module, sweating timing module, and sweat loss calculation module. Each module processes specific aspects of sweat physiology separately, allowing the system to achieve comprehensive measurement precision while maintaining manageable device complexity through modular sensor integration.

The patent combines multiple sensor types (first sensor for exercise detection, second sensor with electrodes for sweating detection) into an integrated wearable device. This merging of sensors allows simultaneous collection of exercise and sweating data, improving sweat loss estimation accuracy by correlating physiological events while sharing common processing infrastructure.

The wearable device is designed with multi-functional sensors that serve multiple purposes: the first sensor detects both exercise initiation and exercise duration, while the second sensor with electrodes detects sweating timing and sweat rate. This universality allows a single device to perform comprehensive sweat loss analysis without requiring separate specialized sensors for each measurement, thereby improving precision while controlling complexity.

The sensor system automatically detects and processes sweating characteristics without requiring external intervention. The electrodes in the second sensor self-generate signals when sweat contacts them, and the processor automatically correlates this with exercise data from the first sensor, enabling the device to self-calibrate and self-measure sweating parameters accurately.