Speed Measurement Using Acceleration TRIZ Cases
- Door and Drawer Motion Detection Using Zero-Crossing Acceleration Areas
Integrated acceleration areas between zero crossings separate real door or drawer motion from noise for accurate open and close detection.
- Door and Drawer Motion Detection Using Acceleration Area Pairs
Integrated acceleration areas between zero crossings help distinguish real door or drawer opening and closing events from noise and knocks.
- Pedelec Speed Sensing with Trusted Backup Signals
When wheel pulse signals fail, multiple backup inputs with trust parameters keep pedelec speed detection stable and rider assistance consistent.
- Predictive Antenna Beam Steering for Air Mobility Communication
GNSS-guided beam steering predicts target direction during flight to keep air mobility links stable with fixed or moving ground targets.
- TPMS Sensor Identification Using ABS Tooth Count Matching
ABS tooth counts matched to transmitted wheel-angle timing let the ECU identify identical TPMS sensors at each wheel automatically.
- Tire-Mounted Acceleration Sensing for Accurate Mileage Tracking
Radial acceleration sampling timed between contact patch and revolution intervals improves tire mileage accuracy without external computation.
- E-Bike Speed Estimation Using Inertial Sensors and Kinematics
Acceleration and yaw-rate sensing provide a kinematic cross-check for e-bike speed when pulse-based sensors fail or drift.
- eBike Speed Estimation Using IMU Kinematics and Plausibility Checks
Multi-axis acceleration and rotation sensing estimate eBike speed and flag faulty pulse-based signals through kinematic plausibility checks.
- Vehicle Speed Estimation Using Wheel Speeds During Slip
Processes all wheel speeds and longitudinal acceleration to estimate vehicle speed accurately during wheel slip without IMU data.
- UAV Wind Speed Estimation Using Flight Data and System Identification
Flight-data system identification estimates UAV wind speed without added sensors or databases, cutting cost and preserving real-time response.
- Rotary Imaging Speed Measurement Using On-Board Acceleration Sensing
On-board acceleration sensing replaces static references and gyroscopes to measure lamp belt speed accurately during high-speed rotary imaging.
- Rotorcraft Vertical Speed Estimation for Stable FBW Control
Combining pitot and accelerometer signals with complementary filtering improves rotorcraft vertical speed estimation and stabilizes FBW control.
- Inertial Sensor Readout Extrapolation for Clock Mismatch Accuracy
A low-pass filter estimates the input-to-readout clock ratio so inertial sensors can extrapolate output data accurately in slave mode.
- Sensor Data Drift Correction for Precise Speed Estimation
Kalman-filter-based drift removal corrects integrated sensor data and improves speed estimation when sensor errors and initial values cause drift.
- IMU Data Compression Using Remainder Rounding for Low-Power Transmission
Rounding IMU velocity and orientation increments while carrying remainders forward cuts transmission power without causing integration drift.
- Mobile Terminal Fall Detection Using Gyroscope and Accelerometer
Gyroscope and accelerometer fusion detects rotation and movement to identify mobile terminal ejection from a holder faster than free-fall alone.
- Aircraft Shock Strut Gas Dissolution Prediction for Accurate Servicing
Predicting time-varying gas solubility from pressure, temperature, and stroke history helps service aircraft shock struts without overpressurization.
- Mobile Terminal Holder Ejection Detection via Motion Sensor Fusion
Rotation-rate and acceleration data are fused to detect atypical twisting and movement, enabling rapid identification of holder ejection or crash events.
- Electronic Luggage Tag Using Inertial Sensing for Weight Estimation
Inertial sensors in an electronic luggage tag estimate bag weight without bulky scales, enabling real-time weighing during check-in.
- Vehicle Speed Estimation Using GPS Scale-Factor Correction
Corrects wheel-speed errors from tire radius changes and acceleration by scaling sensor speed with GPS reference data.
- Baro-Inertial Vertical Speed Correction Under Rapid Altitude Changes
Limits transient vertical speed errors by reducing baro-inertial correction gain when barometric altitude shifts abruptly near terrain.
- Wearable Electronic Device Using Filtered Acceleration for Exercise Analysis
Filtered vertical and horizontal acceleration helps a wearable device identify arm swing direction and ground contact foot despite wearing-position variation.