NB-IOT基于蜂窝(wo)(wo)的窄(zhai)带物(wu)联(lian)网(wang)（Narrow Band Internet of Things, NB-IoT）成为万物(wu)互联(lian)网(wang)络(luo)的一个(ge)重要(yao)分支(zhi)。NB-IoT的构建是(shi)蜂窝(wo)(wo)网(wang)络(luo)，消耗(hao)的带宽(kuan)很少(shao)——大约180KHz左右，可直(zhi)接(jie)部署(shu)于GSM网(wang)络(luo)、UMTS网(wang)络(luo)或(huo)LTE网(wang)络(luo)，从而(er)来降低部署(shu)的成本、进(jin)而(er)来实现平滑升级(ji)。

　　NB-IoT是IoT领域一个新兴的(de)技术，广域网(wang)(wang)的(de)蜂窝(wo)数(shu)(shu)据(ju)连(lian)接支持低(di)功耗(hao)设(she)备(bei)(bei)，也被叫作低(di)功耗(hao)广域网(wang)(wang)(LPWA)。NB-IoT待机(ji)时间比较长、连(lian)接对网(wang)(wang)络连(lian)接要求较高设(she)备(bei)(bei)。我们都(dou)知道NB-IoT设(she)备(bei)(bei)电池(chi)使用年限(xian)能(neng)至少提(ti)高至10年，同时还能(neng)提(ti)供(gong)非常全的(de)室(shi)内蜂窝(wo)数(shu)(shu)据(ju)连(lian)接覆盖。

　　新(xin)(xin)一(yi)代信(xin)息技术的(de)重要组成(cheng)部(bu)分就(jiu)是(shi)(shi)(shi)(shi)物(wu)(wu)(wu)(wu)(wu)(wu)联(lian)(lian)(lian)(lian)网(wang)(wang)(wang)，也是(shi)(shi)(shi)(shi)"信(xin)息化"时代的(de)重要发(fa)展(zhan)阶段。其(qi)英文名称(cheng)是(shi)(shi)(shi)(shi):"Internet of things(IoT)"。物(wu)(wu)(wu)(wu)(wu)(wu)联(lian)(lian)(lian)(lian)网(wang)(wang)(wang)说白了其(qi)实(shi)就(jiu)是(shi)(shi)(shi)(shi)物(wu)(wu)(wu)(wu)(wu)(wu)物(wu)(wu)(wu)(wu)(wu)(wu)相连的(de)互联(lian)(lian)(lian)(lian)网(wang)(wang)(wang)。现在两层(ceng)意思(si):其(qi)一(yi)，物(wu)(wu)(wu)(wu)(wu)(wu)联(lian)(lian)(lian)(lian)网(wang)(wang)(wang)的(de)基础和核心依旧(jiu)是(shi)(shi)(shi)(shi)互联(lian)(lian)(lian)(lian)网(wang)(wang)(wang)，是(shi)(shi)(shi)(shi)在互联(lian)(lian)(lian)(lian)网(wang)(wang)(wang)基础上的(de)扩展(zhan)和延伸(shen)出(chu)来的(de)网(wang)(wang)(wang)络(luo)(luo)；二(er)，它的(de)用(yong)(yong)(yong)(yong)户(hu)端扩展(zhan)和延伸(shen)到了各个物(wu)(wu)(wu)(wu)(wu)(wu)品与物(wu)(wu)(wu)(wu)(wu)(wu)品之间的(de)，然后才进行信(xin)息交换以及通信(xin)，那就(jiu)是(shi)(shi)(shi)(shi)物(wu)(wu)(wu)(wu)(wu)(wu)物(wu)(wu)(wu)(wu)(wu)(wu)相息。物(wu)(wu)(wu)(wu)(wu)(wu)联(lian)(lian)(lian)(lian)网(wang)(wang)(wang)通过智(zhi)能系统、来识别technology与普(pu)适计算(suan)等(deng)通信(xin)感知技术，应(ying)(ying)用(yong)(yong)(yong)(yong)于网(wang)(wang)(wang)络(luo)(luo)中，因此被称(cheng)为继(ji)计算(suan)机、互联(lian)(lian)(lian)(lian)网(wang)(wang)(wang)之后全球信(xin)息产业(ye)发(fa)展(zhan)的(de)第三次新(xin)(xin)潮。物(wu)(wu)(wu)(wu)(wu)(wu)联(lian)(lian)(lian)(lian)网(wang)(wang)(wang)是(shi)(shi)(shi)(shi)互联(lian)(lian)(lian)(lian)网(wang)(wang)(wang)的(de)应(ying)(ying)用(yong)(yong)(yong)(yong)和拓展(zhan)，说物(wu)(wu)(wu)(wu)(wu)(wu)联(lian)(lian)(lian)(lian)网(wang)(wang)(wang)是(shi)(shi)(shi)(shi)网(wang)(wang)(wang)络(luo)(luo)不如说物(wu)(wu)(wu)(wu)(wu)(wu)联(lian)(lian)(lian)(lian)网(wang)(wang)(wang)是(shi)(shi)(shi)(shi)应(ying)(ying)用(yong)(yong)(yong)(yong)和业(ye)务(wu)。物(wu)(wu)(wu)(wu)(wu)(wu)联(lian)(lian)(lian)(lian)网(wang)(wang)(wang)发(fa)展(zhan)的(de)核心就(jiu)是(shi)(shi)(shi)(shi)应(ying)(ying)用(yong)(yong)(yong)(yong)创新(xin)(xin)，物(wu)(wu)(wu)(wu)(wu)(wu)联(lian)(lian)(lian)(lian)网(wang)(wang)(wang)发(fa)展(zhan)的(de)灵魂是(shi)(shi)(shi)(shi)以用(yong)(yong)(yong)(yong)户(hu)体验为核心的(de)创新(xin)(xin)是(shi)(shi)(shi)(shi)。

　　活点的定义:利用互联(lian)(lian)网(wang)(wang)(wang)(wang)或局部网(wang)(wang)(wang)(wang)络等(deng)通(tong)信技术把控制器、传感器、机器、人员和物(wu)等(deng)通(tong)过新(xin)的方(fang)式联(lian)(lian)在一起，形成人与物(wu)、物(wu)与物(wu)相(xiang)联(lian)(lian)，远(yuan)程管理控制、实现信息化和智(zhi)能化的网(wang)(wang)(wang)(wang)络。物(wu)联(lian)(lian)网(wang)(wang)(wang)(wang)呢可以说是(shi)互联(lian)(lian)网(wang)(wang)(wang)(wang)延伸出(chu)来的，它包括互联(lian)(lian)网(wang)(wang)(wang)(wang)及互联(lian)(lian)网(wang)(wang)(wang)(wang)上所(suo)有的资源(yuan)，兼容互联(lian)(lian)网(wang)(wang)(wang)(wang)所(suo)有的应用，但物(wu)联(lian)(lian)网(wang)(wang)(wang)(wang)中所(suo)有的元(yuan)素(所(suo)有的设备、资源(yuan)及通(tong)信等(deng))都是(shi)个性化和私有化。

　　物联网就是(shi)互联网的(de)一(yi)个延伸，互联网的(de)终端(duan)是(shi)计算(suan)机(PC、服务器(qi))，我们运行的(de)所有程序，无非都(dou)是(shi)计算(suan)机和网络(luo)中的(de)数据处(chu)理和数据传输，没有涉及任何其他的(de)终端(duan)(硬(ying)件)。

　　物联(lian)网(wang)的(de)(de)本质还(hai)是互(hu)(hu)联(lian)网(wang)，只(zhi)不(bu)过终(zhong)端不(bu)再是计算(suan)机(ji)(PC、服(fu)务(wu)器)，而是嵌入式计算(suan)机(ji)系统及(ji)其配套的(de)(de)传感器。这是计算(suan)机(ji)发展的(de)(de)必然的(de)(de)结(jie)果，为人类服(fu)务(wu)的(de)(de)计算(suan)机(ji)呈(cheng)现(xian)(xian)出各种形态(tai)，如穿戴设(she)(she)备(bei)(bei)、环境监控设(she)(she)备(bei)(bei)、虚拟现(xian)(xian)实(shi)设(she)(she)备(bei)(bei)等(deng)等(deng)。只(zhi)要有产品或硬件连上网(wang)，发生数据交互(hu)(hu)，就叫物联(lian)网(wang)。