Wind Speed Detection in Electronic Devices via Air Pressure
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Solution Overview
Problem
Existing smart electronic devices, such as smartphones and tablets, lack a wind speed detection function, which is essential for outdoor activities despite being equipped with various sensors.
Innovation Solution
Integration of an air pressure detection device and modules within the electronic device to detect air pressure values, calculate altitude, and determine wind speed by utilizing comparison tables and equations to derive wind speed values from wind pressure values, with the aid of sensors for temperature and air density.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an air pressure detection device is integrated into the electronic device to enable wind speed detection, then the functional diversity and utility during outdoor activities are improved, but the device complexity increases
Solution Approach 1:
The patent applies multi-functionality by enabling the air pressure detection device to serve dual purposes: traditional altitude measurement and wind speed detection. By utilizing the relationship between air pressure changes and wind pressure, the same hardware component performs multiple functions, thereby improving adaptability without proportionally increasing device complexity
Solution Approach 2:
The patent introduces an intermediary calculation model that bridges air pressure detection and wind speed measurement. Through mathematical models and comparison tables that relate air pressure differences to wind pressure and subsequently to wind speed, the system enables indirect measurement of wind speed using existing air pressure sensor hardware
2Measurement precision
If wind speed detection is implemented using air pressure detection, then measurement capability is improved, but measurement precision may be affected due to indirect measurement methods
Solution Approach 1:
The patent implements feedback mechanisms by continuously monitoring air pressure changes and using this information to calculate wind speed. The system compares detected air pressure values against reference values and uses comparison tables to determine wind speed, providing a feedback loop that improves measurement reliability through iterative calculation and validation
Solution Approach 2:
The patent utilizes parameter changes by detecting variations in air pressure and transforming these changes into wind speed measurements. By monitoring dynamic pressure changes rather than static values, the system can infer wind speed magnitude, improving measurement capability while maintaining reliability through established physical relationships
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 the electronic device to accurately detect wind speed, enhancing user experience during outdoor activities by providing essential environmental data.
Implementation Method 1
an air pressure detection device (30) to detect a first air pressure value in an outside environment
Implementation Method 2
determine an altitude value of a location of the electronic device according to the first air pressure value
Implementation Method 3
determine a wind speed value in the outside environment according to a relationship between the first air pressure value and a wind pressure value
Data Source
AI summary
A wind speed detection method for an electronic device includes detection of a first air pressure value in outside environment around the electronic device when an air hole of the electronic device is blocked. The electronic device can be aligned directly against a wind and a second air pressure value is detected in outside environment. A wind pressure value in the outside environment can be acquired according to a difference value between the first air pressure value and the second air pressure value. Value of wind speed in the outside environment can be established according to the wind pressure value and a relationship between the wind pressure value and the wind speed value.