公开(公告)号：JP2001222430A

公开(公告)日：2001-08-17

申请号：JP2000363469

申请日：2000-11-29

Applicant: ST MICROELECTRONICS SRL

Inventor： ARENA PAOLO ,  BRANCIFORTE MARCO ,  DI BERNARDO GIOVANNI ,  OCCHIPINTI LUIGI

IPC: G06N3/00 ,  B25J9/16 ,  G05B13/02 ,  G06F9/44 ,  G06N7/02 ,  G06N7/04

Abstract: PROBLEM TO BE SOLVED: To realize an electronic circuit having structural and mechanical features capable of controlling the motion of a multi-actuator electromechanical system. SOLUTION: This electronic circuit relates to a new method for controlling the movement of a multi-architecture electromechanical system having the matrix of locally connected analog sells. Each cell expresses the execution configuration of the hardware of the model of a fuzzy inference rule. It is desired that the model generates and controls the typical reaction diffusion mechanism of autonomous waves by using a fuzzy neural network, and is constituted as a fuzzy circuit architecture to be mounted in the form of an integrated circuit using a VLSICMOS technique. In this fuzzy neural network, a functional relation capable of duplexing a simultaneous reaction diffusion equation is defined, and the state variables of plural cells are processed in a language format by duplexing the simultaneous equation, and the kinetics of a vibration type is applied by two sets of fuzzy rules to be imposed on each cell, and the two dynamic processes are provided with different kinematical characteristics simultaneously.

公开(公告)号：DE60139793D1

公开(公告)日：2009-10-15

申请号：DE60139793

申请日：2001-12-21

Applicant: ST MICROELECTRONICS SRL

Inventor： FORTUNA LUIGI ,  RIZZO ALESSANDRO ,  FRASCA MATTIA ,  BRANCIFORTE MARCO ,  BARTOLONE MARCO

IPC: G01S15/10 ,  G01S7/523 ,  G01S7/537 ,  G01S15/93

Abstract: A system for detecting distances, usable, for instance, in the vehicle sector or in robotics applications, comprises at least one transducer (16), such as a piezoelectric transducer, for generating a transmission signal to be sent in the direction of an obstacle (O) and for obtaining a receiving signal corresponding to an echo produced by the reflection of said transmission signal off the obstacle (O). The transducer (16) is driven by a chaos generator (10), such as a Chua's circuit (10). The system preferably comprises a correlator (18) for correlating the transmission signal (TX) and the receiving signal (RX) so that the distance between the obstacle and the transducer (16) is identified by the instant at which the aforesaid correlation assumes the maximum value. Preferably, the transmission signal (TX) is a square-wave signal selectively generated with one first frequency and one second frequency, the jumps between said two frequencies being determined by the instants of emission of the pulses (CPPM) generated by a pulse generator of an analog type (12) driven by the chaos generator (10).