面向医疗大数据平台的异构网络网关的设计

Design of Heterogeneous Network Gateway for Medical Mega-data Platform

在医疗大数据背景下,为了解决医院中传感器网络和其他异构网络之间数据交互、融合、统一处理的问题,设计了面向医疗大数据平台的异构网络网关。网关系统由数据交汇处理中心、以太网接入点、Zig Bee网络接入点、Wi Fi网络接入点、蓝牙网络接入点等构成。以STM32F103VET6为主处理器,对网关节点进行硬软件设计。首先,根据各异构网络信号的特点,设计接入点的驱动电路;其次,在各异构网络协议标准的基础上,设计网关节点的软件,通过任务调度算法实时获取与转发数据;最后,为提高系统的鲁棒性,采用差错处理机制。测试结果表明,网关系统稳定、数据处理能力强。

Under the background of medical mega-data, in order to solve the problems of data interaction, data integration, and unified data processing among sensor network and other heterogeneous network in hospital, the heterogeneous network gateway for medical mage-data platform has been designed. The gateway system is composed of data intersection center, Ethernct access point, ZigBee network access point, WiFi network access point and Bluetooth access point, etc. The design of hardware and software for the gateway nodes are accomplished with STM32F103VET6 as the main processor. Firstly, in accordance with the characteristics of various heterogeneous network signals, the drive circuits of access point are designed ; then on the basis of various protocol standard of heterogeneous network, the software of gateway nodes is designed; the real time data are acquired and forwarded through task scheduling algorithm, and the error handling mechanism is adopted to enhance robustness of the system. The test results show that the gateway system is stable with strong data processing capability.