基于hl7 标准的负载均衡网关池.doc

基于HL7标准的负载均衡网关池
蒲立新①曲建明②童振①
摘要随着医院信息化程度的提高,实现各医疗系统的互联已成为紧迫的任务。要实现医疗系统的互联就要用到HL7标准,因为它是医疗领域中实现通讯的国际标准。本文首先介绍了HL7标准中的相关内容,然后根据HL7标准设计了支持负载均衡和动态配置的网关池以整合医院中各个系统的通讯框架,并且提出了相应的实现方法。
关键词 HL7 HIS PACS RIS 网关负载均衡动态配置
Load Balance Gateway Pool based on HL7 Standard /PU Li-xin, QU Jian-ming,TONG Zhen//China Digital Medicine.
Abstract Along with the development of the information processing in the hospitals, the interconnection of different healthcare systems has e an urgent target. To realize the interconnection, HL7(Health Level Seven)Standard must be used, because it’s an international standard munication between healthcare systems. Firstly this thesis shows the correlative concepts of HL7 Standard. Secondly, the thesis designs the frame of munication system that unifies the information transaction in hospital and is based on HL7 Standard. The core is a gateway pool which supports load balanced technology and dynamic configuration. Also, it narrates the corresponding methods and steps to realize the fame.
Keywords HL7, HIS, PACS, RIS, gateway, Load Balance, Dynamic Allocation
1 引言
实现各个医疗系统互连,达到资源共享,提高医院工作效率,节约医院成本的目的,这是不可阻挡的历史潮流。HL7标准是实现医疗系统互联的国际标准。中国医院的信息化建设也必定以HL7标准为基础。本文试图按照HL7标准,设计出整合医院各个信息系统的结构以及实现方法。
2 HL7标准简介
HL7标准的目的与背景 HL7是医疗领域不同应用系统之间电子数据传输的协议,是由HL7组织制定并由ANSI批准实施的一个行业标准。它主要的目的是要发展各类医疗信息系统之间,如临床、保险、管理、行政及检验等,各项电子资料的标准。
HL7消息消息是HL7标准传递数据的单位,它由一组按序排列的段组成,每一个消息