Acoustic Signal Devices TRIZ Cases

Measured hopper and screed material levels give paving operators clear visual and audio feedback for more accurate feed control, even at night.

Exterior sensors detect people or cargo in non-transport areas of autonomous vehicles and trigger warnings or safe braking.

Fastened bumper modules cut welding, shipping, and repair burden while shielding mounted accessories with a protective channel.

Radio-received sound sources let the vehicle generate real-time virtual driving sounds that match driving state without manual driver setup.

A vibrating air guide duct wall uses resonance to boost forward horn sound without enlarging the horn or front opening.

Mode-based control adjusts excavator operation limits during communication faults, preserving work efficiency while tightening restrictions in cooperative work.

Dynamic AVAS sound layers adjust volume and frequency by speed, noise, time, and location to keep quiet vehicles audible to pedestrians.

Level-based occupant alarms use sensor detection and timed state transitions after ignition-off to better handle remaining-passenger alerts.

Opposed front speakers share one audio signal to meet pedestrian alert rules while cancelling cabin noise through acoustic interference.

Partial autonomous steering and braking handle sudden cut-ins while limiting steering wheel rotation to reduce driver injury and discomfort.

An integrated piezo lamp uses filtering and adaptive drive control to prevent over-current and maintain stable audio output under temperature shifts.

Panel-mounted transducers recreate engine-like acoustic vibrations from driving conditions, restoring sporty driver feedback under emissions limits.

Automatic lens heating, wiping, and multi-camera coverage keep vehicle video clear despite weather, contamination, and blind spots.

Hazard sensors trigger autonomous vehicle relocation, opening garage doors and disconnecting charging cables to move the car to safety.

Charge monitoring and threshold alerts help an EV power external devices without draining below the level needed to reach a destination.

Sensors and a controller map obstacles around a refuse vehicle, create a safety zone, and trigger lift, motion, or alert actions.

Bandwidth-aware event uploads let a mobile robot detect hazards locally, modify its path in real time, and offload storage and analytics.

Pre- and post-departure cabin images are compared to detect and locate forgotten items while limiting processing complexity.

Electromagnetic vibration modules add sound output to a watertight vehicle lamp housing without compromising moisture resistance.

Sensor-based path planning weighs waiting against circumnavigation when an object blocks the drivable path, improving safety and traffic flow.

Multiple object-tracking methods balance accuracy and reaction time, enabling collision warnings from low-cost ultrasonic sensing.

Multi-stage OTA checks verify blockchain-delivered virtual sounds in vehicles before playback, blocking abnormal or unsafe sound transactions.

Multiple in-vehicle sensors detect unattended occupants and dangerous heat, then trigger cooling or ventilation and send alerts to recipients.

Muscle-response kinesiology testing helps detect latent fatigue and stress, then adjusts cabin air, lighting, and fragrance for comfort.

A smoothed gain curve limits excess waveform peaks before clipping, reducing harmonic distortion while preserving recognizable sound output.

Combining basic waveform tables with playback-frequency tables cuts sound data storage while still generating diverse notification sounds.

Dead-reckoning boundary regions suppress repeat reverse braking events for the same detected object, reducing false activations and driver frustration.

Recorded vehicle sound profiles are minted as NFTs and replayed through another vehicle's speakers to reproduce authentic engine sound.