摘要
随着经济的发展和技术的进步，人们对医疗监护服务提出新的要求，希望能不受时间和地点的限制就能获得服务。而现有的远程医疗系统无法满足这种需求。虽然他们也能够正确采集病人的身体信息，然而，其往往要么缺乏大容量存储系统；要么无法将病人在特殊情况下的数据及时传输到医院，以作为医生紧急诊断的参考。
因此，本文设计了基于ARM、Flash以及GpsOne的便携式医疗监护系统终端。该终端以S3C44B0X微处理器为中心；利用CDMA-1X网络进行远程实时数据传输和GpsOne技术准确定位病人。
本文首先介绍了主要的几种CDMA无线定位技术，在对各种定位技术比较和分析的基础上研究了GpsOne定位技术；然后对ARM微处理器及嵌入式操作系统μC／OS-Ⅱ进行了详尽的描述和研究；最后完成了监护终端的软硬件设计，并对系统的整体功能进行了测试。
该监护终端的硬件设计，主要包括微处理器芯片的选型、存储器单元和FD-800的电路设计等；软件上主要包括μC／OS-Ⅱ在S3C44B0X上的移植，系统任务的划分及各个功能模块的具体实现。软件采用的方案可以描述为：嵌入式操作系统+TCP／IP协议栈+应用程序。在μC／OS-Ⅱ上开发应用程序：将应用程序划分成多任务，简化了应用系统软件设计，提高了系统的可靠性。
该终端能够实时处理、存储和远程传输数据，并能对病人进行有效定位，提高了监护终端的监护水平。终端还具有移动性、便携性、操作性好等优点。
With the development of economy and technology, people put forward the new requirements to the medical monitoring system,hoping for service without being restricted by time and place.But the current remote medical care systems can't satify this demand.Although they could sample the patients' data,they are lack of the huge memory,or they don't have wireless transferring ability. Especially, in the urgency, the doctors may make their decision to help the patient based on these cardiograms.
So, the paper designs the portable medical monitoring terminal based on the ARM technology and Flash technology and GpsOne technology.This terminal takes the S3C44B0X microprocessor as a center, which uses CDMA-1X mobile communication system for data transmission and GpsOne technology for the patient's locating.
The paper first introduces the main CDMA location technologies。comparing and analyzing the main CDMA location technologies we survey the position location technology based on GpsOne; Then a detailed description and research is carried on for the ARM microprocessor and the embedded operating systemμC/OS-Ⅱ;Finally the paper accomplish hardware and software design of the monitoring terminal; and test the overall function of the system.
This terminal's hardware design mainly includes the choice of microprocessor chip, the circuit design of memory modules and FD-800 and so on. The Software mainly includes the transplant ofμC/OS-Ⅱon S3C44B0X, the division of system task and the specific realization of each function module. The software plan can be described as an embedded operating system + TCP/IP stack + application program. The application program is developed on the basis ofμC/OS-Ⅱand divided into multi-task, which simplify the software design of application system and improve the reliability of system.
The terminal can real-time process, store and transmit data with wireless network. It also can locate the patient accurately.and improve the level of monitoring terminal.The terminal has advantages of high mobility, portability and convenience.
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