远程医疗应用中无线便携式头盔的设计

目的：为解决远程音像采集方面存在的诸多问题,研制一套便携式远程医疗设备——无线远程便携式头盔终端。方法：选取能够自动完成快速而高精度调焦的微型摄像头,实现远程医疗图像的采集;采用UDA1344实现对麦克风输入的模拟声音信号进行A/D转换,形成串行数字音频流。利用采用uCos多任务实时操作系统的头盔主操作系统将采集到的音频、视频数据进行压缩处理后,通过短距离无线数据传输与本地网络联结,通过本地网关连入Internet网络。结果：无线远程便携式头盔能够进行图像采集及声音传输,具备自动调焦、摄像、双向对讲功能,通过无线网络与远程医疗服务器联结,实现远程图像和声音传输功能。结论：无线远程便携式头盔可用于远程急救、远程手术转播等远程医疗服务,它的应用将推动远程医疗朝实用化方向迈进一大步。

Design of wireless portable helmet for telemedicine

Objective To develop a set of portable equipment for telemedicine audio and video acquision-wireless portable helmet terminal.Methods The telemedicine images were acquired rapidly in high precision by using micro-camera with automatic focus.Voice analog signals input from microphone were performed A/D conversion by using UDA1344 to form serial digital audio stream.Compressed by helmet master operating system in uCos multitask real-time operating system,the acquired audio and video data were connected with local network by short-distance wireless transmission and then with Internet.Results Wireless portable helmet for telemedicine had such functions as images acquisition,audio transmission,automatic focus,video tape and both-way interphone.The wireless connection with telemedicine server could transmit audio and video in long distance.Conclusion Wireless portable helmet for telemedicine can be applied in remote emergency care,operation and transmission,which will greatly promote the application of tele-medicine.