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Portable equipment for monitoring and recording human postures / B. Mehenni 

Public ISBD Titre : Portable equipment for monitoring and recording human postures Type de document : texte imprimé Auteurs : B. Mehenni, Auteur ; C. J. Paull, Directeur de thèse Editeur : Nottingham : University of Nottingham Année de publication : 1984 Importance : 58 f. Présentation : ill. Format : 30 cm. Note générale : Mémoire de Master : Electronique : Angleterre, University of Nottingham : 1984 Bibliogr. [2] f. Annexe [12] f Langues : Anglais (eng) Mots-clés : Portable  electronic  system Human  posture Multichannel  unit Index. décimale : Ms00784 Résumé : This thesis describes the development of a compact, self-powered and portable electronic system for measuring and recording human posture changes which are detected and converted into analogue voltages by an array of transducers attached to selected joints of the human body. The present equipment is designed as a multichannel unit to accommodate a possible total of 16 transducers, each channel being scanned at preset intervals of time and the samples passed to conditioning circuits which produce digitally encoded signals acceptable for computer processing. The datais, first, stored in memory and then transferred into magnetic tape. The data is read-back and displayed on the screen of a Video Genie Microcomputer for further processing. This equipment is configured around the NSC800 microprocessor family and makes use of CMOS technology in order to reduce the overall power consumption. In addition, the ability to power down the transducers during non-sampling periods further reduces the power drain making the equipment suited for prolonged on-site operation. Finally, the performance of the equipment during laboratory testing is assessed and suggestions are made for further enhancements of the recording system. Portable equipment for monitoring and recording human postures [texte imprimé] / B. Mehenni, Auteur ; C. J. Paull, Directeur de thèse . - Nottingham : University of Nottingham, 1984 . - 58 f. : ill. ; 30 cm. Mémoire de Master : Electronique : Angleterre, University of Nottingham : 1984 Bibliogr. [2] f. Annexe [12] f Langues : Anglais (eng) Mots-clés : Portable  electronic  system Human  posture Multichannel  unit Index. décimale : Ms00784 Résumé : This thesis describes the development of a compact, self-powered and portable electronic system for measuring and recording human posture changes which are detected and converted into analogue voltages by an array of transducers attached to selected joints of the human body. The present equipment is designed as a multichannel unit to accommodate a possible total of 16 transducers, each channel being scanned at preset intervals of time and the samples passed to conditioning circuits which produce digitally encoded signals acceptable for computer processing. The datais, first, stored in memory and then transferred into magnetic tape. The data is read-back and displayed on the screen of a Video Genie Microcomputer for further processing. This equipment is configured around the NSC800 microprocessor family and makes use of CMOS technology in order to reduce the overall power consumption. In addition, the ability to power down the transducers during non-sampling periods further reduces the power drain making the equipment suited for prolonged on-site operation. Finally, the performance of the equipment during laboratory testing is assessed and suggestions are made for further enhancements of the recording system.

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité	Spécialité	Etat_Exemplaire
Ms00784	Ms00784	Papier	Bibliothèque centrale	Mémoire de Master	Disponible

Documents numériques

MEHENNI.B.pdf URL