Barometer Sensor Data Verification Using Motion Correlation
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Solution Overview
Problem
Barometer sensors in electronic devices can provide inaccurate data if their holes are blocked or contaminated with foreign substances, leading to malfunction and incorrect atmospheric pressure measurements.
Innovation Solution
An electronic device equipped with a barometer sensor and a motion sensor, where the processor obtains data from both sensors to determine if the barometric pressure data corresponds to the motion data, allowing for the identification of sensor malfunctions and correction of inaccurate readings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a barometer sensor is included to measure atmospheric pressure, then the electronic device can provide functions such as direction and health care, but the hole for the barometer sensor can be blocked or contaminated with foreign substances, causing inaccurate sensor values
Solution Approach 1:
The motion sensor acts as an intermediary to verify the reliability of barometric pressure data. By comparing barometric pressure changes with motion sensor data, the system can detect when the barometer sensor is blocked or contaminated, and exclude unreliable measurements from functions like step counting and health monitoring.
2Object-affected harmful factors
If the hole for the barometer sensor is blocked with foreign substances, then the device structure can be water and dust proof, but air cannot flow through the hole, causing the barometer sensor to malfunction
Solution Approach 1:
The system uses feedback from the motion sensor to monitor the operational status of the barometer sensor. When the motion sensor detects that the device is stationary while the barometer sensor records pressure changes, or when pressure changes don't correlate with expected motion patterns, the system identifies sensor malfunction and excludes the unreliable data from processing.
3Productivity
If the barometer sensor data is used without verification, then the device can provide continuous barometric pressure functions, but inaccurate data leads to incorrect information and failed functions
Solution Approach 1:
The system performs self-verification by using the motion sensor to validate barometer sensor data. The processor automatically compares barometric pressure changes with motion data to determine data reliability, and self-corrects by excluding unreliable measurements without requiring external intervention or manual calibration.
Data Source
AI summary
An electronic device is provided. The electronic device includes a barometer sensor configured to measure a barometric pressure of the electronic device, a motion sensor configured to detect a motion of the electronic device, and a processor configured to obtain, using the barometer sensor, first data relating to a change of the barometric pressure, obtain, using the motion sensor while the first data is obtained, second data relating to the motion of the electronic device, and if the first data corresponds to the second data, determine the first data as data corresponding to the barometric pressure.