Jacktang 发表于 2020-12-21 21:14

NB-IoT应用分类与技术特点分析

<p><font color="#4d4d4d"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box; font-family: myFont, &quot;Microsoft YaHei&quot;; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"><font face="-apple-system, &amp;quot"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box;"><font style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; font-size:16px">&nbsp;<span style="font-size:16px;"> &nbsp;&nbsp; NB-Iot作为一种窄带物联网技术在各大行业脱颖而出,其应用涵盖多个领域。此文计讯小编将讲解NB-IoT的主要应用分类及相关特点。</span></font></font></font></font></font><br style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; color:#323232; font-family:myFont, &quot;Microsoft YaHei&quot;; font-size:14px; font-style:normal; font-variant-ligatures:normal; font-variant-caps:normal; font-weight:400; letter-spacing:normal; orphans:2; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:2; word-spacing:0px; -webkit-text-stroke-width:0px; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial" />
<span style="font-size:16px;"><font color="#4d4d4d"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box; font-family: myFont, &quot;Microsoft YaHei&quot;; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"><font face="-apple-system, &amp;quot"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box;"><font style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; font-size:16px">&emsp;&emsp;一、NB-IoT是什么</font></font></font></font></font><br style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; color:#323232; font-family:myFont, &quot;Microsoft YaHei&quot;; font-size:14px; font-style:normal; font-variant-ligatures:normal; font-variant-caps:normal; font-weight:400; letter-spacing:normal; orphans:2; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:2; word-spacing:0px; -webkit-text-stroke-width:0px; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial" />
<font color="#4d4d4d"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box; font-family: myFont, &quot;Microsoft YaHei&quot;; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"><font face="-apple-system, &amp;quot"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box;"><font style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; font-size:16px">&emsp;&emsp;NB-IoT是指窄带物联网(Narrow Band -Internet of Things)技术。NB-IOT聚焦于低功耗广覆盖(LPWA)物联网(IoT)市场,是一种可在全球范围内广泛应用的新兴技术。NB-IOT使用License频段,可采取带内、保护带或独立载波等三种部署方式,与现有网络共存。</font></font></font></font></font><br style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; color:#323232; font-family:myFont, &quot;Microsoft YaHei&quot;; font-size:14px; font-style:normal; font-variant-ligatures:normal; font-variant-caps:normal; font-weight:400; letter-spacing:normal; orphans:2; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:2; word-spacing:0px; -webkit-text-stroke-width:0px; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial" />
<font color="#4d4d4d"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box; font-family: myFont, &quot;Microsoft YaHei&quot;; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"><font face="-apple-system, &amp;quot"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box;"><font style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; font-size:16px">&emsp;&emsp;二、NB-IoT具备四大特点</font></font></font></font></font><br style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; color:#323232; font-family:myFont, &quot;Microsoft YaHei&quot;; font-size:14px; font-style:normal; font-variant-ligatures:normal; font-variant-caps:normal; font-weight:400; letter-spacing:normal; orphans:2; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:2; word-spacing:0px; -webkit-text-stroke-width:0px; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial" />
<font color="#4d4d4d"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box; font-family: myFont, &quot;Microsoft YaHei&quot;; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"><font face="-apple-system, &amp;quot"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box;"><font style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; font-size:16px">&emsp;&emsp;强链接:在同一基站的情况下,NB-IoT可以比现有无线技术提供50-100倍的接入数。一个扇区能够支持10万个连接,支持低延时敏感度、超低的设备成本、低设备功耗和优化的网络架构。举例来说,受限于带宽,运营商给家庭中每个路由器仅开放8-16个接入口,而一个家庭中往往有多部手机、笔记本、平板电脑,未来要想实现全屋智能、上百种传感设备需要联网就成了一个棘手的难题。而NB-IoT足以轻松满足未来智慧家庭中大量设备联网需求。</font></font></font></font></font><br style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; color:#323232; font-family:myFont, &quot;Microsoft YaHei&quot;; font-size:14px; font-style:normal; font-variant-ligatures:normal; font-variant-caps:normal; font-weight:400; letter-spacing:normal; orphans:2; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:2; word-spacing:0px; -webkit-text-stroke-width:0px; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial" />
<font color="#4d4d4d"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box; font-family: myFont, &quot;Microsoft YaHei&quot;; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"><font face="-apple-system, &amp;quot"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box;"><font style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; font-size:16px">&emsp;&emsp;高覆盖:NB-IoT室内覆盖能力强,比LTE提升20dB增益,相当于提升了100倍覆盖区域能力。不仅可以满足农村这样的广覆盖需求,对于厂区、地下车库、井盖这类对深度覆盖有要求的应用同样适用。以井盖监测为例,过去GPRS的方式需要伸出一根天线,车辆来往极易损坏,而NB-IoT只要部署得当,就可以很好的解决这一难题。</font></font></font></font></font><br style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; color:#323232; font-family:myFont, &quot;Microsoft YaHei&quot;; font-size:14px; font-style:normal; font-variant-ligatures:normal; font-variant-caps:normal; font-weight:400; letter-spacing:normal; orphans:2; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:2; word-spacing:0px; -webkit-text-stroke-width:0px; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial" />
<font color="#4d4d4d"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box; font-family: myFont, &quot;Microsoft YaHei&quot;; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"><font face="-apple-system, &amp;quot"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box;"><font style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; font-size:16px">&emsp;&emsp;低功耗:低功耗特性是物联网应用一项重要指标,特别对于一些不能经常更换电池的设备和场合,如安置于高山荒野偏远地区中的各类传感监测设备,它们不可能像智能手机一天一充电,长达几年的电池使用寿命是最本质的需求。NB-IoT聚焦小数据量、小速率应用,因此NB-IoT设备功耗可以做到非常小,设备续航时间可以从过去的几个月大幅提升到几年。</font></font></font></font></font><br style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; color:#323232; font-family:myFont, &quot;Microsoft YaHei&quot;; font-size:14px; font-style:normal; font-variant-ligatures:normal; font-variant-caps:normal; font-weight:400; letter-spacing:normal; orphans:2; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:2; word-spacing:0px; -webkit-text-stroke-width:0px; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial" />
<font color="#4d4d4d"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box; font-family: myFont, &quot;Microsoft YaHei&quot;; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"><font face="-apple-system, &amp;quot"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box;"><font style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; font-size:16px">&emsp;&emsp;低成本:与LoRa相比,</font></font></font></font></font><font style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; font-family:myFont, &quot;Microsoft YaHei&quot;; font-size:14px; font-style:normal; font-variant-ligatures:normal; font-variant-caps:normal; font-weight:400; letter-spacing:normal; orphans:2; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:2; word-spacing:0px; -webkit-text-stroke-width:0px; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial; color:#6795b5"><font face="-apple-system, &amp;quot"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box;"><font style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; font-size:16px">NB-IoT</font></font></font></font><font color="#4d4d4d"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box; font-family: myFont, &quot;Microsoft YaHei&quot;; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"><font face="-apple-system, &amp;quot"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box;"><font style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; font-size:16px">无需重新建网,射频和天线基本上都是复用的。以中国移动为例,900MHZ里面有一个比较宽的频带,只需要清出来一部分2G的频段,就可以直接进行LTE和NB-IoT的同时部署。低速率、低功耗、低带宽同样给NB-IoT芯片以及模块带来低成本优势。模块预期价格不超过5美元。</font></font></font></font></font><br style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; color:#323232; font-family:myFont, &quot;Microsoft YaHei&quot;; font-size:14px; font-style:normal; font-variant-ligatures:normal; font-variant-caps:normal; font-weight:400; letter-spacing:normal; orphans:2; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:2; word-spacing:0px; -webkit-text-stroke-width:0px; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial" />
<font color="#4d4d4d"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box; font-family: myFont, &quot;Microsoft YaHei&quot;; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"><font face="-apple-system, &amp;quot"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box;"><font style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; font-size:16px">&emsp;&emsp;三、NB-IoT的主要应用分类</font></font></font></font></font><br style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; color:#323232; font-family:myFont, &quot;Microsoft YaHei&quot;; font-size:14px; font-style:normal; font-variant-ligatures:normal; font-variant-caps:normal; font-weight:400; letter-spacing:normal; orphans:2; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:2; word-spacing:0px; -webkit-text-stroke-width:0px; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial" />
<font color="#4d4d4d"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box; font-family: myFont, &quot;Microsoft YaHei&quot;; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"><font face="-apple-system, &amp;quot"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box;"><font style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; font-size:16px">&emsp;&emsp;在低速物联网领域,NB-IoT作为一个新制式,在成本、覆盖、功耗、连接数等技术上做到极致。该技术被广泛应用于公共事业、医疗健康、智慧城市、消费者、农业环境、物流仓储、智能楼宇、制造行业等八大典型行业。</font></font></font></font></font><br style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; color:#323232; font-family:myFont, &quot;Microsoft YaHei&quot;; font-size:14px; font-style:normal; font-variant-ligatures:normal; font-variant-caps:normal; font-weight:400; letter-spacing:normal; orphans:2; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:2; word-spacing:0px; -webkit-text-stroke-width:0px; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial" />
<font color="#4d4d4d"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box; font-family: myFont, &quot;Microsoft YaHei&quot;; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"><font face="-apple-system, &amp;quot"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box;"><font style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; font-size:16px">&emsp;&emsp;公用事业:抄表(水/气/电/热)、智能水务(管网/漏损/质检)、智能灭火器/消防栓。</font></font></font></font></font><br style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; color:#323232; font-family:myFont, &quot;Microsoft YaHei&quot;; font-size:14px; font-style:normal; font-variant-ligatures:normal; font-variant-caps:normal; font-weight:400; letter-spacing:normal; orphans:2; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:2; word-spacing:0px; -webkit-text-stroke-width:0px; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial" />
<font color="#4d4d4d"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box; font-family: myFont, &quot;Microsoft YaHei&quot;; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"><font face="-apple-system, &amp;quot"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box;"><font style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; font-size:16px">&emsp;&emsp;医疗健康:药品溯源、远程医疗监测、血压表、血糖仪、护心甲监控。</font></font></font></font></font><br style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; color:#323232; font-family:myFont, &quot;Microsoft YaHei&quot;; font-size:14px; font-style:normal; font-variant-ligatures:normal; font-variant-caps:normal; font-weight:400; letter-spacing:normal; orphans:2; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:2; word-spacing:0px; -webkit-text-stroke-width:0px; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial" />
<font color="#4d4d4d"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box; font-family: myFont, &quot;Microsoft YaHei&quot;; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"><font face="-apple-system, &amp;quot"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box;"><font style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; font-size:16px">&emsp;&emsp;智慧城市:智能路灯、智能停车、城市垃圾桶管理、公共安全/报警、建筑工地/城市水位监测。</font></font></font></font></font><br style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; color:#323232; font-family:myFont, &quot;Microsoft YaHei&quot;; font-size:14px; font-style:normal; font-variant-ligatures:normal; font-variant-caps:normal; font-weight:400; letter-spacing:normal; orphans:2; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:2; word-spacing:0px; -webkit-text-stroke-width:0px; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial" />
<font color="#4d4d4d"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box; font-family: myFont, &quot;Microsoft YaHei&quot;; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"><font face="-apple-system, &amp;quot"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box;"><font style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; font-size:16px">&emsp;&emsp;消费者:可穿戴设备、自行车/助动车防盗、智能行李箱、VIP跟踪(小孩/老人/宠物/车辆租赁)、支付/POS机。</font></font></font></font></font><br style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; color:#323232; font-family:myFont, &quot;Microsoft YaHei&quot;; font-size:14px; font-style:normal; font-variant-ligatures:normal; font-variant-caps:normal; font-weight:400; letter-spacing:normal; orphans:2; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:2; word-spacing:0px; -webkit-text-stroke-width:0px; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial" />
<font color="#4d4d4d"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box; font-family: myFont, &quot;Microsoft YaHei&quot;; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"><font face="-apple-system, &amp;quot"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box;"><font style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; font-size:16px">&emsp;&emsp;农业环境:精准种植(环境参数:水/温/光/药/肥)、畜牧养殖(健康/追踪)、水产养殖、食品安全追溯、城市环境监控(水污染/噪声/空气质量PM2.5)。</font></font></font></font></font><br style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; color:#323232; font-family:myFont, &quot;Microsoft YaHei&quot;; font-size:14px; font-style:normal; font-variant-ligatures:normal; font-variant-caps:normal; font-weight:400; letter-spacing:normal; orphans:2; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:2; word-spacing:0px; -webkit-text-stroke-width:0px; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial" />
<font color="#4d4d4d"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box; font-family: myFont, &quot;Microsoft YaHei&quot;; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"><font face="-apple-system, &amp;quot"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box;"><font style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; font-size:16px">&emsp;&emsp;物流仓储:资产/集装箱跟踪、仓储管理、车队管理/跟踪、冷链物流(状态/追踪)。</font></font></font></font></font><br style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; color:#323232; font-family:myFont, &quot;Microsoft YaHei&quot;; font-size:14px; font-style:normal; font-variant-ligatures:normal; font-variant-caps:normal; font-weight:400; letter-spacing:normal; orphans:2; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:2; word-spacing:0px; -webkit-text-stroke-width:0px; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial" />
<font color="#4d4d4d"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box; font-family: myFont, &quot;Microsoft YaHei&quot;; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"><font face="-apple-system, &amp;quot"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box;"><font style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; font-size:16px">&emsp;&emsp;智能楼宇:门禁、智能HVAC、烟感/火警检测、电梯故障/维保。</font></font></font></font></font><br style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; color:#323232; font-family:myFont, &quot;Microsoft YaHei&quot;; font-size:14px; font-style:normal; font-variant-ligatures:normal; font-variant-caps:normal; font-weight:400; letter-spacing:normal; orphans:2; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:2; word-spacing:0px; -webkit-text-stroke-width:0px; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial" />
<font color="#4d4d4d"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box; font-family: myFont, &quot;Microsoft YaHei&quot;; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"><font face="-apple-system, &amp;quot"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box;"><font style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; font-size:16px">&emsp;&emsp;制造行业:生产/设备状态监控、能源设施/油气监控、化工园区监测、大型租赁设备、预测性维护(家电、机械等)。</font></font></font></font></font><br style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; color:#323232; font-family:myFont, &quot;Microsoft YaHei&quot;; font-size:14px; font-style:normal; font-variant-ligatures:normal; font-variant-caps:normal; font-weight:400; letter-spacing:normal; orphans:2; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:2; word-spacing:0px; -webkit-text-stroke-width:0px; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial" />
<font color="#4d4d4d"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box; font-family: myFont, &quot;Microsoft YaHei&quot;; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"><font face="-apple-system, &amp;quot"><font style="overflow-wrap: break-word; margin: 0px; padding: 0px; box-sizing: border-box;"><font style="overflow-wrap:break-word; padding:0px; box-sizing:border-box; font-size:16px">&emsp;&emsp;NB-IoT是新兴的物联网技术,因为低功耗、连接稳定、成本低、架构优化出色等特点而备受关注,随着NB-IoT技术越来越成熟,更多领域会出现它的身影。</font></font></font></font></font></span></p>

ZXopen 发表于 2020-12-21 22:14

<p>还不错</p>

Antenna629 发表于 2020-12-22 11:30

<p>学习</p>

hubusbwxz69 发表于 2023-9-16 14:13

学习了

lzchb 发表于 2023-9-25 13:22

<p>好&nbsp;</p>
页: [1]
查看完整版本: NB-IoT应用分类与技术特点分析