Beacon Systems Using Ultrasonic/Sonic/Infrasonic Waves TRIZ Cases

See how beacon markers and RF or ultrasonic sensors enable robotic lawnmowers to detect obstacl

Beacon markers let a robotic work tool detect proximity to temporary or virtual obstacles and avoid collision wear without boundary wires.

Portable GPS guidance and sensor fusion let an autonomous yard forklift handle varied loads in all weather while slowing or stopping for pedestrians.

Radar distance and acceleration sensing tracks pantograph and contact wire wear despite dirt, enabling timely maintenance before damage.

GPS-guided forklift orchestration and obstacle sensing enable flexible outdoor load handling in weather and mixed pedestrian traffic.

Reference markers on guide components or chain links enable non-contact absolute position sensing in energy chains without slip-related errors.

Ultrasonic pulses traveling on non-linear paths help detect vehicles hidden by fences or parked cars, extending ADAS warning range.

Periodic ultrasonic pulses follow non-linear air paths to detect hidden vehicles beyond fences or parked cars and warn drivers or ADAS.

Acoustic Doppler and line-intersection estimates correct accumulated underwater navigation drift using exact node position references.

Parallel FPGA correlation with configurable sample handling improves real-time underwater acoustic positioning, multi-target output, and noise robustness.

Autonomous UUVs lay fiber-optic links between seafloor nodes and use short-range docking to cut cable-ship labor, cost, and harsh-weather exposure.

A rope-managed auxiliary vessel and acoustic ranging approach improves underwater positioning accuracy while reducing manual workload and drift during recovery.

Distributed microphones and acoustic beacons locate threat sounds, then dispatch autonomous ground drones for real-time investigation and response.

Aerial or nautical relay vehicles retransmit GNSS-like signals to improve SNR and DOP for more reliable rover positioning in urban or underwater environments.

Deployed visual, audio, or radio beacons give a UAV backup reference points for SLAM when low light or sensor failure disrupts position tracking.

Sensor-based microphone position and orientation tracking improves transfer function measurement and room compensation for better sound quality.

A composite I/Q clock on one CPW line and LC splitters cut 60 GHz die area and power loss while preserving phase accuracy.

Integrated control logic stores transmit patterns and switches voltage levels through one trigger line, cutting PCB connections, cost, and failures.

Modulated light sources generate inaudible photoacoustic signals, enabling accurate indoor mobile positioning without extra hardware.

Moon-gravity and IMU data let a stationary underwater beacon fix its own position and acoustically recalibrate submerged navigation systems.

Unique acoustic beacon patterns overcome indoor GPS blockage by separating signals and using time-delay multilateration to locate a receiver.

Audio markers detected by microphones help HMDs track nearby surroundings and render cues that improve user awareness without breaking immersion.

Seafloor acoustic platforms and vessel transducers enable reliable Arctic positioning and heading where GPS, buoys, and compasses fail.

Unique frequency patterns identify multiple acoustic beacons, while correlation-derived delays locate a receiver indoors.