Abstract— This document is the first work done in the set of experiments performed in the laboratory on the navigation mobile robot equipped with ultrasonic sensors. This paper presents theoretical and experimental analysis of the steering system of a mobile robot according to the time difference between the signal of the sensor and rotating wheels. Through experiments that will be presented to...

This paper presents an ongoing project for augmenting acoustic instruments with active acoustics. Active acoustics are defined as audio-rate vibration driven into the instruments physical structure, inducing air-borne sound output. The instrument’s acoustic sound is thus doubled by an electronic soundscape radiating from the same source. The article is centered on a case study on two guitars, o...

It is often desired to reduce sound radiated from cylindrical shells. Active structural acoustic control (ASAC) provides a means of controlling the structural vibration in a manner to efficiently reduce the radiated sound. Previous work has often required a large number of error sensors to reduce the radiated sound power, and the control performance has been sensitive to the location of error s...

This demonstration is about a prototype of a new digitally augmented book for children, using sensors to allow continuous user interaction and to generate (not just play back) sounds in real time. During the demonstration the user will experience the book, intuitively modifying and controlling the sound generation process.

Diffuse ultrasonic signals received from ultrasonic sensors which are permanently mounted near, on or in critical structures of complex geometry are very difficult to interpret because of multiple modes and reflections constructively and destructively interfering. Both changing environmental and structural conditions affect the ultrasonic wave field, and the resulting changes in the received si...

This paper presents a method for identification and distance detection for ultrasonic sensors of indoor mobile robot by using correlation scheme. The transmitted signal is identified by correlation between known model patterns and the patterned signal from transmitters and this scheme is useful when multiple sensors are involved. Distance detection by correlation is shown to be more accurate th...

Non-contact sensing is very desirable in many measurement situations. Non-contact sensors are free of probe wear or bounce, collect data at much higher rates than contact devices and do not influence the object being measured. Compared to capacitive and inductive devices, laser triangulation sensors have much larger standoff (distance from the sensor to the part). Compared to ultrasonic sensors...

A sonar array and a camera are the sensors of a robot that learns to move inside a building. Learning is based on the association of ultrasonic and visual images with motor commands. The two sensors extract diierent information from the environment. Sonars produce a short-range depth image on the sonar array plane, vision gives a wide-range at image of the space. In this work, a memory-based pr...

This paper describes a development of sound synthesis system as application of new sound generating technique "Scanned Synthesis". As the first step of this research, algorithm of scanning sound synthesis in real time and physical model control in real time were realized simultaneously. As the 2nd step of research, the EMG sensor which outputs simultaneous detection of the muscular electric pot...

Current automobiles’ safety systems based on video cameras and movement sensors fail when objects are out of the line of sight. This paper proposes a system based on pulsed neural networks able to detect if a sound source is approaching the sensor or moving away from it. The system, based on PN models, compares the sound level difference between consecutive instants of time in order to determin...