UWB Rainfall Sensing for Real-Time Vehicle Body Control
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Solution Overview
Problem
Existing rainfall detection systems in vehicles suffer from inaccuracies and unreliability in real-time rainfall detection, and their application in vehicle control is limited.
Innovation Solution
A vehicle control method utilizing an ultra-wide band (UWB) sensor to accurately detect real-time rainfall, which is then used to control vehicle functions such as window closure and wiper speed adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional rainfall sensors (capacitive, resistive, infrared, piezoelectric, or CCD) are used for rainfall detection, then the detection function is provided, but the precision and reliability of real-time rainfall detection deteriorate
Solution Approach 1:
The patent replaces traditional mechanical and optical rainfall sensors with an electromagnetic wave-based UWB detection system. The UWB sensor emits electromagnetic waves that penetrate raindrops and reflect back, allowing measurement of rainfall intensity through signal analysis. This substitution eliminates the precision and reliability issues of traditional sensors while providing accurate real-time rainfall detection.
2Adaptability or versatility
If rainfall detection is implemented using conventional sensors, then basic detection capability is achieved, but the application scope in vehicle control remains limited and single
Solution Approach 1:
The patent integrates the UWB sensor into the vehicle's existing electromagnetic communication infrastructure, allowing the same hardware to serve both UWB communication and rainfall detection functions. The detection system is then applied across multiple vehicle control domains including window control, wiper control, lighting control, and safety systems, thereby expanding application scope while maintaining high reliability through the robust electromagnetic wave detection mechanism.
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 UWB sensor provides accurate and stable real-time rainfall detection, enabling enhanced vehicle control applications by closely relating rainfall magnitude to vehicle body state control, thereby improving safety and user experience.
Implementation Method 1
the UWB sensor emits an electromagnetic wave, which is less affected by the environment and has high anti-interference performance
Data Source
AI summary
A vehicle control method is provided for a vehicle having an ultra wide band (UWB) sensor configured to measure a rainfall value. The method includes waking up the UWB sensor in response to a trigger instruction for starting rainfall detection, to cause the UWB sensor to measure a rainfall value; acquiring the rainfall value measured by the UWB sensor; and controlling the vehicle to execute a preset control instruction action according to the rainfall value.