Probabilistic Mapping with Ultrasonic Distance Sensors

Development of a Quadrocoptor Robot with Vision and Ultrasonic Sensors for Distance Sensing and Mapping

The objective of this paper is to build a map using a quadrocopter. To explore the surroundings and build a map, ultrasonic sensors and a camera sensor are used. As ultrasonic and camera sensors get information separately, they have to be synchronized. Through this synchronization, the location of the quadrocopter can be recognized. At that point, the four horizontal distances can be calculated...

Object recognition with ultrasonic sensors

We have recently introduced a novel approach to sonarbased object recognition for robotics. The sonar recognition system—consisting of a Polaroid sonar coupled with an A/D data acquisition board in a LINUX-based PC— uses a fuzzy ARTMAP neural network classification system to recognize objects at varying distances. In this article we report additional results in which we test systematically reco...

Probabilistic Mapping by Fusion of Range-Finders Sensors and Odometry

One of the main challenges faced by robotics scientists is to provide autonomy to robots. That is, according to Medeiros (Medeiros, 1998) a robot to be considered autonomous must present a series of abilities as reaction to environment changes, intelligent behavior, integration of data provided by sensors (sensor fusion), ability for solving multiple tasks, robustness, operation without failing...

Obstacle detection robot with ultrasonic sensors pdf

Multimodal speech recognition with ultrasonic sensors

Ultrasonic sensing of articulator movement is an area of multimodal speech recognition that has not been researched extensively. The widely-researched audio-visual speech recognition (AVSR), which relies upon video data, is awkwardly high-maintenance in its setup and data collection process, as well as computationally expensive because of image processing. In this thesis we explore the effectiv...