Using Subsonic/Sonic/Ultrasonic Vibration Means TRIZ Cases
- Ultrasonic Parking Sensing for Curb and Vehicle Height Discrimination
Alternating low and high ultrasonic frequencies helps distinguish curbs from vehicles by echo patterns, improving parking-space judgment.
- Ultrasonic Sensor Assembly With Acoustic Metamaterial Screening
A broadband acoustic metamaterial screen lets covered vehicle ultrasonic sensors pass echoes while reducing structural vibration noise.
- Vehicle Ultrasonic Sensor Assembly With Acoustic Metamaterial Aperture
A broadband acoustic metamaterial aperture lets a concealed vehicle ultrasonic sensor boost echo amplitude and signal-to-noise ratio.
- Paver Screed Height Control for Real-Time Layer Thickness
Continuous position and ultrasonic thickness feedback adjusts paver screed height in real time to meet road layer targets and cut material waste.
- Supporting Beam Offset Inspection for Substrate Carriers
A pushing member and offset sensor automate supporting beam deflection checks in substrate carriers, avoiding manual calibration and delays.
- Vehicle Road Surface Recognition Using Sound and Driving Data
Combining tire-road sound with driving data improves road surface recognition in steady driving while avoiding added sensor cost.
- Wheel-Arch Microphone Sensing for Thin Road Water Detection
A wheel-arch microphone isolates high-frequency splash energy beyond 4 kHz to estimate thin road water films with minimal vibration sensitivity.
- Ultrasonic Hitch Angle Estimation at High Trailer Articulation
Curve-fitted ultrasonic sensor characteristics let towing control estimate hitch angle when only one sensor return is available at high articulation.