Résumé
In this paper, a phagaquosonogram acquisition, a module with TMS320C6713 as a core, and USB as communicating pattern is introduced based on VC++6.0. The structure of the module, hardware configuration, software design and the experiment of the real phagaquosonogram signal collection are presented. It is shown that the module can extract human phagaquosonogram signal reliably and availably.
Sujets)
Techniques de diagnostic digestif , Traitement du signal assisté par ordinateur , Logiciel , Conception de logicielRésumé
An online ECG signals analysis service system based on the network has been established and is introduced in this paper which integrates the advantages of the network, database and ECG analysis tools, providing on-line ECG signal analysis service. Users with the knowledge of general operation of a browser, can process the ECG data and get a real-time display of analysis results.
Sujets)
Systèmes informatiques , Systèmes de gestion de bases de données , Bases de données factuelles , Électrocardiographie , Méthodes , Traitement du signal assisté par ordinateur , Conception de logicielRésumé
Based on the reconstruction of two-dimension phase space of time series of short ECG signals, the variation of the strange attractor geometry is described and two indices, VMI and VAI, are derived in this paper. The two indices can distinguish clearly the ECG signals of sinus rhythm, tachycardia and ventricular fibrillation. Stable results of VMI and VAI can be obtained by analyzing ECG signals of several seconds. They are expected to be used in the development of medical instruments for a fast realtime display of analysis results.
Sujets)
Animaux , Lapins , Électrocardiographie , Méthodes , Infarctus du myocarde , Traitement du signal assisté par ordinateurRésumé
This paper presents a new kind of collecting and processing system of the sound signal of larynx where double sound cards and software filter are used. The installation of the double sound cards and processing proposal of software are mainly discussed and a new kind of ADC method of dual-channel sound signal is put forward in this paper. This system has the feature of reliable performance, simple installation and easy maintenance.