Title :
An embedded system for position and speed measurement adopting incremental encoders
Author :
Faccio, Marco ; Grande, Paolo ; Parasiliti, Francesco ; Petrella, Roberto ; Tursini, Marco
Author_Institution :
Dept. of Electr. Eng., L´´Aquila Univ., Italy
Abstract :
This work presents an embedded digital system for incremental encoders allowing for high dynamic performance and accuracy speed measurement in all the operating conditions for the application in digital servo drives. The idea aims at embedding processing capabilities inside traditional position transducers in order to develop a smart measuring system. The base processing algorithm employs a novel mixed time and frequency measurement technique of the encoder signals. The iterative formulation of the algorithm and the limited hardware requirements allows its implementation by means of a standard microcontroller (e.g. TMS 320F24x) or by dedicated hardware. Communication between the smart sensor and the servo drives is preliminary realised via high-speed serial peripheral interface.
Keywords :
angular measurement; drives; embedded systems; encoding; intelligent sensors; microcontrollers; position measurement; power engineering computing; servomechanisms; time-frequency analysis; velocity measurement; digital servo drives; embedded digital system; incremental encoders; microcontroller; mixed time and frequency measurement technique; position measurement; serial peripheral interface; smart measuring system; smart sensor; speed measurement; Digital systems; Embedded system; Frequency measurement; Hardware; Iterative algorithms; Position measurement; Servomechanisms; Signal processing; Transducers; Velocity measurement;
Conference_Titel :
Industry Applications Conference, 2004. 39th IAS Annual Meeting. Conference Record of the 2004 IEEE
Print_ISBN :
0-7803-8486-5
DOI :
10.1109/IAS.2004.1348564
