Wrist Wearable Temperature Sensing With Forehead Reference Calibration
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Solution Overview
Problem
Existing body temperature measurement methods struggle to balance measurement precision and convenience, leading to poor user experience.
Innovation Solution
A wrist wearable device with multiple temperature sensors, including a forehead sensor and a wrist sensor, measures temperatures at different body locations and compensates for ambient conditions to improve precision and comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If forehead temperature measurement is performed repeatedly to improve accuracy, then measurement precision is improved, but user convenience deteriorates
Solution Approach 1:
The system performs forehead temperature measurement in advance to establish a reference value, then uses wrist temperature for subsequent measurements. This preliminary action allows the system to avoid repeated forehead measurements while maintaining accuracy through the pre-established reference.
Solution Approach 2:
The wrist temperature measurement acts as an intermediary between repeated forehead measurements. The system uses wrist temperature as a substitute measurement that can be taken conveniently while periodically validating it against forehead temperature to maintain overall accuracy.
2Ease of operation
If wrist temperature measurement is used to improve convenience, then ease of operation is improved, but measurement precision deteriorates
Solution Approach 1:
The system implements feedback by periodically comparing wrist temperature measurements with forehead temperature measurements. This feedback mechanism allows the system to validate the accuracy of convenient wrist measurements against the more accurate forehead reference, ensuring precision is maintained.
Solution Approach 2:
The system changes the measurement parameter from wrist temperature to forehead temperature at specific intervals or under specific conditions. This parameter switching allows the system to use the convenient wrist measurement most of the time while periodically correcting with the more accurate forehead measurement.
3Measurement precision
If multiple temperature sensors are added to measure both forehead and wrist temperatures, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The wrist wearable device is designed with multi-functionality, serving both as a continuous wrist temperature monitor and as a periodic forehead temperature measurement device. This universal design allows the same device to perform multiple measurement functions without requiring separate dedicated devices.
Solution Approach 2:
The system dynamically switches between different measurement modes and sensor usage. It can operate in wrist-only mode for convenience, forehead-only mode for accuracy, or alternating modes for balanced performance, adapting to different user needs and conditions.
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
The method enhances body temperature measurement accuracy by correlating forehead and wrist temperatures, reducing the need for repeated forehead measurements and improving overall user comfort.
Implementation Method 1
a first temperature sensor, configured to measure a temperature at a forehead of a user
Implementation Method 2
a second temperature sensor, configured to measure a temperature at a wrist of a user
Data Source
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AI summary
A body temperature measurement method is provided, which is applied to a wrist wearable device, for example, a smart watch or a smart band. When a body temperature of a user is measured, a first temperature at a forehead of the user may be measured by using a temperature sensor, and a second temperature at a wrist of the user is measured by using another temperature sensor at a relatively close time. Through calculation, a third temperature associated with the first temperature is displayed on a display. Then, a fourth temperature at the wrist may be measured by using a second temperature sensor. In this way, when the fourth temperature is the same as the second temperature, the third temperature may be displayed on the display by using the foregoing relationship. This method can improve comfort and convenience of a body temperature measurement process and improve measurement precision. An electronic device and a computer-readable storage medium are further provided.