Aircraft Wind Measurement Alignment for Accurate In-Flight Sensing
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Solution Overview
Problem
Conventional methods for measuring greenhouse gas concentration in farmland are hindered by low-level wind shear, requiring lab analysis and lacking real-time capabilities, and there is no ultrasonic or laser wind measurement apparatus for aircraft in flight states to measure wind velocity and direction accurately.
Innovation Solution
A wind velocity measurement apparatus for aircraft, comprising an aircraft attitude obtaining apparatus, ultrasonic or laser wind measurement apparatus, attitude adjustment apparatus, aircraft parameter obtaining apparatus, and control apparatus, which adjusts the ultrasonic or laser wind measurement apparatus to keep transmit and receive ends horizontal, allowing for accurate measurement of absolute wind velocity and angle using relative wind angles and aircraft parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If an ultrasonic or laser wind measurement apparatus is installed on a moving aircraft, then real-time wind velocity and direction measurement during flight is enabled, but the transmit end and receive end cannot be kept horizontal due to aircraft attitude changes
Solution Approach 1:
The patent applies the dynamics principle by introducing an attitude adjustment apparatus that actively adapts the wind measurement apparatus to the aircraft's changing flight attitude. The system dynamically adjusts the orientation of the transmit and receive ends to maintain horizontality despite aircraft pitch, roll, and yaw movements, enabling both real-time measurement and measurement precision to be achieved simultaneously
Solution Approach 2:
The patent implements feedback by using an aircraft attitude obtaining apparatus to continuously monitor the aircraft's flight attitude and providing this information to the control apparatus. The control apparatus then adjusts the attitude adjustment apparatus based on this feedback to maintain the horizontal orientation of the wind measurement apparatus, resolving the contradiction between motion and measurement accuracy
2Reliability
If an enrichment box is placed above plants to collect greenhouse gas, then gas collection is protected from wind shear disturbance, but real-time continuous observation cannot be achieved
Solution Approach 1:
The patent replaces the static mechanical enrichment box system with a dynamic aircraft-based measurement system. Instead of using a physical enclosure to protect gas collection, the system uses an aircraft equipped with wind compensation technology to measure greenhouse gas concentration in real-time while flying through the farmland, thereby achieving both measurement reliability and real-time observation
Solution Approach 2:
The aircraft-based system provides multi-functionality by simultaneously performing wind velocity measurement, wind direction measurement, and greenhouse gas concentration measurement. This universal approach replaces the single-function enrichment box while achieving superior real-time performance and continuous observation capability
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 real-time, accurate measurement of wind velocity and direction for aircraft, supporting continuous greenhouse gas detection by ensuring the transmit and receive ends of the ultrasonic or laser wind measurement apparatus remain horizontal, enhancing data precision and enabling precise greenhouse gas emission monitoring.
Implementation Method 1
an ultrasonic or laser wind measurement apparatus is configured to measure a relative wind angle at the ultrasonic or laser wind measurement apparatus
Implementation Method 2
an ultrasonic or laser wind measurement apparatus is configured to measure a relative wind angle at the ultrasonic or laser wind measurement apparatus
Data Source
AI summary
This application provides a wind velocity measurement apparatus for an aircraft. The wind velocity measurement apparatus for an aircraft includes an aircraft attitude obtaining apparatus, an ultrasonic or laser wind measurement apparatus, an attitude adjustment apparatus, an aircraft parameter obtaining apparatus, and a control apparatus. The ultrasonic or laser wind measurement apparatus is configured to measure a relative wind angle. The aircraft parameter obtaining apparatus is configured to obtain a ground velocity and a set course angle of an aircraft. The control apparatus is capable of adjusting, based on an attitude of the aircraft, an attitude of the ultrasonic or laser wind measurement apparatus via the attitude adjustment apparatus until a transmit end and a receive end of the ultrasonic or laser wind measurement apparatus are both kept horizontal. This application further provides a corresponding wind velocity measuring method for an aircraft, and a greenhouse gas detection apparatus.