可见光通信技术在数字化手术室中的应用  

Application of visible light communication technology in digital operating rooms

作　　者：杨海军 张国栋 乌峰 王小斐 宋健[1] YANG Haijun;ZHANG Guodong;WU Feng;WANG Xiaofei;SONG Jian(Department of Electronic Engineering,Tsinghua University,Beijing 100084,China)

机构地区：[1]清华大学电子工程系,北京100084

出　　处：《实验技术与管理》2025年第2期15-20,共6页Experimental Technology and Management

基　　金：清华-丰田联合研究基金(20223930103)。

摘　　要：随着医疗数字化技术的进步,传统医院正在向数字化医院转型。当前主流的基于射频通信的智慧医疗方式面临频谱资源稀缺、使用环境受限、信息易泄露、干扰严重等问题。可见光通信(visible light communication,VLC)是一种利用LED可见光发射信号的无线通信技术。VLC频段不占用无线信道,与传统无线通信技术相比,VLC收发单元可以与现有的照明系统集成。VLC系统具备高带宽、部署方便、无需频谱授权、无电磁干扰、绿色环保节能、低功耗、安全可靠等优点,具有应用于智慧医疗的巨大潜力。文章提出基于VLC系统的数字化手术室设计方案,通过充分利用无影灯的结构以及引入空间分集技术,保证了所设计的VLC系统具有稳定的连接性。实验结果表明,设计的系统可以在复杂的手术环境中实现高速且可靠的数据传输。[Objective]The rapid advancement of medical digitalization technology is driving the transformation of traditional hospitals into digital hospitals,and this trend is becoming increasingly strong.However,current radio frequency(RF)-based smart healthcare systems face challenges such as limited spectrum resources,restricted usage environments,information security risks owing to RF signal propagation,and significant interference from similar systems.Visible light communication(VLC)is an optical wireless communication technology that utilizes LED-based visible light to transmit signals.Unlike traditional RF channels,VLC eliminates bandwidth congestion and can be integrated cost-effectively with existing lighting infrastructure.VLC systems offer several advantages,including high bandwidth,ease of deployment,no spectrum authorization,immunity to electromagnetic interference,environmental friendliness,energy efficiency,and enhanced security and reliability,making them ideal for smart healthcare applications.This study presents a design scheme for a digital operating room based on a VLC system and provides preliminary verification through simulations.[Methods]To design a digital operating room utilizing VLC technology,uplink and downlink communication systems were implemented.For the uplink,data is converted into optical signals by the VLC transmission unit and transmitted to the VLC receiving unit.The shadowless lamp acts as a bridge,relaying the data from the operating room to an external data server via the network.The server processes,analyzes,and stores the uploaded data.For the downlink,the processed information from the server is relayed back to the shadowless lamp’s VLC transmission module through the network.The VLC transmitting module controls the speed and intensity of light flickering to encode downstream data into optical signals,which are transmitted to the VLC receiving unit.A reliable VLC system was designed and implemented by effectively utilizing the shadowless lamps and spatial diversity.Based on the

关 键 词：可见光通信 可见光收发器 手术室应用 电磁干扰 

分 类 号：TN929.12[电子电信—通信与信息系统]