【導(dǎo)讀】本論文主要研究方向是對(duì)遠(yuǎn)程醫(yī)療和家庭監(jiān)測(cè)提供有效的緊急措施。點(diǎn)是醫(yī)療遙感監(jiān)測(cè)和家庭遠(yuǎn)程醫(yī)療。一個(gè)完整的系統(tǒng)可以用于在救護(hù)車、鄉(xiāng)村衛(wèi)生所和輪船上處理緊急醫(yī)療事故，元，同時(shí)遠(yuǎn)程醫(yī)療單元仍在重點(diǎn)護(hù)理病人所在地，這樣就可實(shí)現(xiàn)對(duì)家庭的無線監(jiān)測(cè)，通過安裝遠(yuǎn)程醫(yī)療單元在病人的家里，而基本單元在醫(yī)院或者是醫(yī)生的辦公室。為了保護(hù)和存儲(chǔ)在遠(yuǎn)程醫(yī)療過程中相互交換的所有數(shù)據(jù)，我們又開發(fā)了一個(gè)。所以，遠(yuǎn)程醫(yī)療的目的是為了給人手不足的偏遠(yuǎn)地區(qū)提供專家級(jí)的衛(wèi)生保健，遠(yuǎn)程醫(yī)療的概念是大約30年。目前，遠(yuǎn)程醫(yī)療系統(tǒng)包。有效的突發(fā)病例遠(yuǎn)程醫(yī)療措施和家庭監(jiān)測(cè)方案是我們這個(gè)課題主要討論的范。在緊急病例中必須進(jìn)行立即治療，最近的調(diào)查表明入院前早期而又專業(yè)?；締卧梢唤M用戶指令軟件組成，運(yùn)用這套指令可以接收遠(yuǎn)程醫(yī)療。而研究主要以遠(yuǎn)程醫(yī)療項(xiàng)目所經(jīng)歷的過程為基礎(chǔ)，像救護(hù)車和急救112，它。們使用遠(yuǎn)程醫(yī)療功能性裝置的功能原型已經(jīng)建立了，且通過了初步評(píng)估。

　　

【正文】 uffer that has size larger than the Maximum Transfer Unit (MTU) this buffer will be fragmented in to smaller packets that each one has the size of the MTU, all small packets will be reconnected when arriving at the destination site。 this case will cause problems when one of the fragmentation packets is lost [42] 機(jī)械專業(yè)中英文文獻(xiàn)翻譯 18 Considering the above two cases the transmission of data, especially through works that have low bandwidth and high error rates (such as GSM mobile work and Satellite Links), has to be done in a way that will utilize the work use as much as possible. The buffers transmitted must have size that want be either too small or too big. In order to measure the performance of TCP/IP over the GSM work several sizes of data buffers had been tested. The tests were performed using GSM modem, Nokia Card Phone for the telemedicine unit, and a POTS modem US robotics sportster voice 56 KBPS for the base unit. These two devices support pression protocol V42 bis. In order to perform the tests。 buffers from 71 up to 479 bytes were selected。 the size of buffers is proportional to the data rate that the Propaq 2xx sends through the RS232 serial port. The packets had sizes: 71, 95, 143, 239, 287, 335, 383, 431, 455, 479 bytes. Using all the above buffers we made some measurements on the bytes that were received and transmitted to and from the base unit of the telemedicine system. Figure 8 shows the results of the bytes transmitted and received from the server unit when having a telemedicine unit connected with GSM to the server. Numbers 1 to 10 represent the size of the buffers used, 1 for the smallest (71 bytes) up to 10 for the largest (479 bytes). The mean value of the bytes transmitted/received per second was recorded for 2 minutes per case. As can be seen transmitting small packets of data cased the transmition of more bytes because of the overhead added on each buffer. The continuous transmition of small buffers also cased some problems on the munication and on the overall telemedicine unit operation。 it could stop the operation of the protocol or add some problem when reading data from the medical monitor (too many system resources were used). Having in mind all the above and the measurements of bytes transmitted (Figure 8) we had to select a buffer size that: would not add too much overhead to the transmitted data, would not cause fragmentation of the transmitted buffers and would not add too much delay on real time transmitted signal. Having in mind all the above the selected buffer size used was 431 bytes. Conclusions We have developed a medical device for telemedicine applications. The device uses GSM mobile telephony links, Satellite links or POTS links and allows the collection and transmission of vital biosignals, still images of the patient and bidirectional telepointing capability. The advance manmachine interface enhances the system functionality by allowing the users to operate in handsfree mode while receiving data and municating with specialists. In order to introduce the system in daily health care provision。 the system has been clinically tested using a controlled medical protocol. The final system is currently installed and used in two different countries Greece and Cyprus. Results from the system use are very promising thus encouraging us to continue the development and improvement of the system in order to be able to cover additional future needs. 機(jī)械專業(yè)中英文文獻(xiàn)翻譯 19 References 1. Lin JC Applying Telemunication Technology to Healthcare Delivery IEEE EMB Mag 1999, 18(4):2831 2. Guidelines For The Early Management Of Patient With Myocardial Infarction BMJ 1994, 308:767771 3. Cerreli Ezio C 1997 Traffic Crashes Injuries And Fatalities, Preliminary Report National Highway Traffic Safety Administration, . Dept of transportation 1997, 4. 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