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Design and Research of a Real-time Communication System for Teleconsultation

Author: HuXueQin
Tutor: YeZhiQian
School: Zhejiang University
Course: Biomedical Engineering
Keywords: Teleconsultation Real-time communication Data Compression Network Communications Video Audio frequency Writing
CLC: TP311.52
Type: Master's thesis
Year: 2007
Downloads: 148
Quote: 3
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Abstract


With the rapid development of multimedia communications technology , our telemedicine teleconsultation has entered a stage of rapid development . Teleconsultation breaking the traditional medical treatment model for patients across time and space to provide a convenient and safe , efficient and economical health care services . Therefore, the development of a set of Internet - based remote diagnosis system to achieve the patient , a local doctor , and off-site expert consultation , have important academic value and application prospect . Face-to-face exchange between the offsite teleconsultation system , the subject 's goal is to achieve real-time communication between the off-site consultation . This paper describes the design and research of of teleconsultation in real-time communication subsystem . First analysis of the two key technologies in the system : multimedia data compression technology and network communication technology . The system uses the H.263 protocol, on the basis of comparison of the various methods to decompress the video and audio decompress G723.1 protocol , and the network transmission of the data stream using the RTP / RTCP / UDP protocol . Then the paper presents the framework of the overall design of the system , divided into network communication module , video module , audio module , text modules and system control modules of five modules , and gave details of the design and implementation of each module . Paper different from the mainstream teleconsultation system , avoid the use of secondary development of the existing network multimedia communication software transformation and simple integration . The thesis Select the form of self-development , according to the actual need to select data compression algorithm and network communication protocols , the the remote interactive audio and video and text communication , remote consultations the two sides of a face-to-face exchange platform . Precisely because it is a self-development , the function of the system controllability , high resolution code , ease of connecting future development and management . And B / S structure to avoid the various consultation point installation , maintenance client , such as a series of troubles .

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