Wearable Measurement Link Control for Low-Power Data Transfer
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Solution Overview
Problem
Existing wearable biological information measurement apparatuses face challenges in improving user convenience and reducing power consumption during data transmission.
Innovation Solution
A wearable measurement apparatus equipped with a wireless communication interface, a detector to sense stationary states, and a controller to transmit advertisement signals for one-to-one connection upon detection of stationarity, optimizing data transfer and reducing unnecessary signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the wireless communication interface continuously transmits advertisement signals to enable automatic data transfer, then user convenience is improved, but power consumption increases
Solution Approach 1:
The advertisement signal transmission is performed periodically rather than continuously. The controller transmits advertisement signals at predetermined intervals, which reduces power consumption while still enabling automatic data transfer when the information terminal is nearby. This periodic transmission maintains user convenience by ensuring data can be transferred on demand without requiring continuous communication.
Solution Approach 2:
The system dynamically adjusts its communication state based on detection results. When the detector identifies that the wearable measurement apparatus is being worn, the controller enables advertisement signal transmission for automatic data transfer. When not being worn, transmission is suspended or reduced, thereby adapting power consumption to actual usage conditions while maintaining ease of operation when needed.
2Reliability
If the advertisement signal is transmitted continuously to ensure automatic data transfer availability, then data transfer reliability is improved, but unnecessary signal transmission increases power consumption
Solution Approach 1:
The detector performs preliminary detection to determine whether the wearable measurement apparatus is being worn before the controller initiates advertisement signal transmission. This preliminary action ensures that data transfer reliability is maintained when the device is in use, while avoiding unnecessary signal transmission and power consumption when the device is not being worn.
Solution Approach 2:
The system changes the transmission parameter (advertisement signal activation state) based on the detection result. When the detector confirms the apparatus is being worn, the controller activates advertisement signal transmission to ensure reliable data transfer. When not being worn, transmission is deactivated, eliminating unnecessary energy loss while maintaining reliability during actual usage.
Data Source
AI summary
A wearable measurement apparatus includes: a wireless communication interface configured to execute wireless communication with an information terminal; a detector configured to detect a stationary state of the measurement apparatus; and a controller configured to cause the wireless communication interface to transmit an advertisement signal for receiving, from the information terminal, a connection request to switch to one-to-one connection communication between the measurement apparatus and the information terminal in response to the stationary state being detected by the detector.