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Realization method of multi-channel playback device for cardiopulmonary voice auscultation training based on dsp

A playback device and a technology for realizing the method, which is applied to teaching aids, educational tools, instruments, etc. operated by electricity, can solve the problems that cannot conform to the heart and lung sounds of the human body, and achieve the effects of selectable speed, strong confidentiality, and high flexibility

Active Publication Date: 2017-02-08
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Nowadays, the heart and lung sound auscultation training devices in the medical teaching market can only play one sound at the same time and only play other types of sounds by switching methods, which cannot conform to the real heart and lung sound activities of the human body.

Method used

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  • Realization method of multi-channel playback device for cardiopulmonary voice auscultation training based on dsp
  • Realization method of multi-channel playback device for cardiopulmonary voice auscultation training based on dsp

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0042] The implementation method is as follows, the initialization of S1 lower computer; initialization includes DSP peripheral port serial port (UART), serial data port (SPORT), removable peripheral storage interface (RSI), serial communication port (SPI), external bus interface Unit (EBIU), D / A conversion (AD1934) initialization, USB communication chip initialization; after initialization is successful, send an initialization success command to the host computer;

[0043]S2 If the PC sends a 16-channel reconfiguration command to the lower computer, the lower computer will feed back the command aa 11 01 bb to the upper computer when it is ready; the PC will configure the 16-channel audio in sequence, for example, the first channel will be sent first. Send the command to configure and determine the channel, and specify the size of the channel file; the lower computer can feedback the command aa 12 03bb to confirm that the channel is ready, and the PC can send the audio file. Th...

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Abstract

The invention relates to a method for achieving a cardiopulmonary voice auscultation training multi-channel play device based on a DSP, and belongs to the field of medical electronic cardiopulmonary voice simulation auscultation. A hardware platform of the device comprises a PC communication part, a master control part, a D / A conversion part and an operational amplification and external amplification part. Communication signaling or voice data between a PC and the DSP are transmitted through the PC communication part. The master control part is mainly used for analyzing the signaling, decrypting the voice data and storing the voice data. The D / A conversion part is used for completing digital-to-analogue conversion of the voice data. The operational amplification and external amplification part is used for filtering and amplifying voice frequency. The method has the advantages of being strong in voice source security, high in safety and upgrading performance and the like, and multiple kinds of case voices can be replaced. Meanwhile, the method enables the device to be high in flexibility, two communication modes are externally set, and speed can be selected.

Description

technical field [0001] The invention belongs to the field of medical electronic cardiopulmonary voice simulation auscultation, in particular to a method for realizing a DSP-based cardiopulmonary voice auscultation training multi-channel playback device. [0002] technical background [0003] In recent years, based on the serious situation of medical treatment, the teaching performance of medical schools has been continuously weakened; the requirements of hospitals for doctors have continued to increase, and there has been a disconnect between school education and hospital requirements. With the development of society, the reform of the medical system, the publicity of the media, the public's legal awareness has been greatly enhanced, and the introduction of a series of medical regulations has further clarified the rights and interests of patients. Patients, the subject of traditional medical teaching in the past, more often choose to refuse to cooperate with teaching work. I...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09B5/04
Inventor 孙光民刘凯张一行刘伟孔祥伟马昊骢
Owner BEIJING UNIV OF TECH
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