Wearable Biosignal Monitoring During Charging With RF Sensing
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Solution Overview
Problem
Wearable electronic devices require continuous charging and measurement of bio-signals, causing inconvenience as users must wear them at all times, including during sleep, which is not practical.
Innovation Solution
An electronic device that includes sensors for bio-signal measurement while worn and an RF sensor in a charging device for continuous bio-signal measurement during charging, allowing health information generation without the need for constant wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a wearable electronic device is used to continuously measure bio-signals, then bio-signal measurement capability is improved, but user convenience deteriorates because the user must wear the device at all times including during sleep
Solution Approach 1:
The system is segmented into two functional parts: a wearable electronic device for active bio-signal measurement and a charging device for passive measurement during charging. This segmentation allows the measurement function to be distributed across different devices and usage scenarios, resolving the contradiction by enabling continuous measurement without requiring constant wear of the electronic device
Solution Approach 2:
The charging device is given the additional function of measuring bio-signals during the charging process. This multi-functionality allows the system to maintain bio-signal measurement capability even when the electronic device is not being worn, as the charging device can detect bio-signals through its RF sensor during overnight charging
2Duration of action of moving object
If the electronic device is charged frequently to maintain operation, then device availability is improved, but measurement continuity deteriorates because the device must be removed for charging
Solution Approach 1:
The useful action of bio-signal measurement is made continuous by enabling the charging device to perform measurement during charging periods. This ensures that measurement does not中断 even when the electronic device is stationary and being charged, as the charging device takes over the measurement function
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables continuous 24-hour bio-signal measurement without the user having to wear the device at all times, providing meaningful health information and reducing the inconvenience of constant wear.
Implementation Method 1
measure a second bio-signal of the user, the second bio-signal being generated by an RF signal oscillated from the RF sensor
Data Source
AI summary
An electronic device may determine whether a user wears the electronic device by means of at least one sensor; measure a first bio-signal of the user by means of the at least one sensor while the user wears the electronic device; drive an RF sensor included in a charging device while the electronic device is connected to the charging device including the RF sensor through an interface, thereby measuring a second bio-signal of the user that is generated by the RF signal oscillated from the RF sensor; receive at least one of electric power for charging the battery from the charging device and the second bio-signal through the interface; generate health information of the user on the basis of at least the first bio-signal and the second bio-signal; and display the generated health information on a display.