{"id":6326,"date":"2023-07-13T09:41:08","date_gmt":"2023-07-13T01:41:08","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=6326"},"modified":"2023-07-13T09:41:13","modified_gmt":"2023-07-13T01:41:13","slug":"nwllxzcsmtxxy","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/6326.html","title":{"rendered":"nb\u7f51\u7edc\u7c7b\u578b\u652f\u6301\u4ec0\u4e48\u901a\u4fe1\u534f\u8bae\uff1f"},"content":{"rendered":"\n

\u3000\u3000\u968f\u7740\u7269\u8054\u7f51\u6280\u672f\u7684\u4e0d\u65ad\u53d1\u5c55\uff0cNB-IoT(Narrow Band-Internet of Things)\u6280\u672f\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5404\u79cd\u667a\u80fd\u8bbe\u5907\u4e2d\u3002NB-IoT\u662f\u4e00\u79cd\u4f4e\u529f\u8017\u3001\u5e7f\u8986\u76d6\u3001\u4f4e\u6210\u672c\u7684\u65e0\u7ebf\u901a\u4fe1\u6280\u672f\uff0c\u5b83\u53ef\u4ee5\u4e3a\u4f17\u591a\u7269\u8054\u7f51\u8bbe\u5907\u63d0\u4f9b\u53ef\u9760\u7684\u8fde\u63a5\u65b9\u5f0f\u3002\u5728NB\u7f51\u7edc\u4e2d\uff0c\u6709\u54ea\u4e9b\u901a\u4fe1\u534f\u8bae\u88ab\u652f\u6301\u5462?\u672c\u6587\u5c06\u4e3a\u60a8\u89e3\u7b54\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e00\u3001NB\u7f51\u7edc\u7c7b\u578b<\/h2>\n\n\n\n

\u3000\u3000NB\u7f51\u7edc\u662f\u6307\u57fa\u4e8e\u8702\u7a9d\u7f51\u7edc\u7684\u4e00\u79cd\u65e0\u7ebf\u901a\u4fe1\u6280\u672f\uff0c\u5b83\u4f7f\u7528\u7a84\u5e26\u4fe1\u9053\u8fdb\u884c\u901a\u4fe1\uff0c\u5177\u6709\u4f4e\u529f\u8017\u3001\u5e7f\u8986\u76d6\u3001\u4f4e\u6210\u672c\u7b49\u7279\u70b9\u3002\u6839\u636e\u5176\u5de5\u4f5c\u9891\u6bb5\u7684\u4e0d\u540c\uff0cNB\u7f51\u7edc\u53ef\u4ee5\u5206\u4e3a\u4e09\u79cd\u7c7b\u578b\uff1a900MHz\u30011800MHz\u548c2100MHz\u3002<\/p>\n\n\n\n

\u3000\u3000\u5176\u4e2d\uff0c900MHz\u7c7b\u578b\u7684NB\u7f51\u7edc\u9002\u7528\u4e8e\u4f4e\u529f\u8017\u3001\u4f4e\u901f\u7387\u7684\u7269\u8054\u7f51\u8bbe\u5907\uff0c\u901a\u4fe1\u8ddd\u79bb\u8f83\u8fdc\uff0c\u4f46\u5bb9\u91cf\u76f8\u5bf9\u8f83\u5c0f;1800MHz\u7c7b\u578b\u7684NB\u7f51\u7edc\u9002\u7528\u4e8e\u9ad8\u901f\u7387\u3001\u4f4e\u529f\u8017\u7684\u7269\u8054\u7f51\u8bbe\u5907\uff0c\u901a\u4fe1\u8ddd\u79bb\u9002\u4e2d\uff0c\u5bb9\u91cf\u7a0d\u5927;2100MHz\u7c7b\u578b\u7684NB\u7f51\u7edc\u9002\u7528\u4e8e\u9ad8\u901f\u7387\u7684\u7269\u8054\u7f51\u8bbe\u5907\uff0c\u901a\u4fe1\u8ddd\u79bb\u8f83\u77ed\uff0c\u4f46\u5bb9\u91cf\u8f83\u5927\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e8c\u3001NB\u7f51\u7edc\u652f\u6301\u7684\u901a\u4fe1\u534f\u8bae<\/h2>\n\n\n\n

\u3000\u30001. CoAP\u534f\u8bae<\/h3>\n\n\n\n

\u3000\u3000CoAP(Constrained Application Protocol)\u662f\u4e00\u79cd\u8f7b\u91cf\u7ea7\u7684\u5e94\u7528\u5c42\u534f\u8bae\uff0c\u5b83\u4e13\u95e8\u4e3a\u7269\u8054\u7f51\u8bbe\u5907\u8bbe\u8ba1\uff0c\u5177\u6709\u4f4e\u5f00\u9500\u3001\u4f4e\u5e26\u5bbd\u3001\u4f4e\u80fd\u8017\u7b49\u7279\u70b9\u3002\u5728NB\u7f51\u7edc\u4e2d\uff0cCoAP\u534f\u8bae\u53ef\u4ee5\u5b9e\u73b0\u8bbe\u5907\u4e4b\u95f4\u7684\u901a\u4fe1\uff0c\u652f\u6301UDP\u534f\u8bae\u548cDTLS\u534f\u8bae\uff0c\u4fdd\u8bc1\u4e86\u6570\u636e\u7684\u5b89\u5168\u6027\u3002<\/p>\n\n\n\n

\u3000\u30002. MQTT\u534f\u8bae<\/h3>\n\n\n\n

\u3000\u3000MQTT(Message Queuing Telemetry Transport)\u662f\u4e00\u79cd\u8f7b\u91cf\u7ea7\u7684\u6d88\u606f\u4f20\u8f93\u534f\u8bae\uff0c\u5b83\u53ef\u4ee5\u5728\u4e0d\u540c\u7684\u7269\u8054\u7f51\u8bbe\u5907\u4e4b\u95f4\u4f20\u8f93\u6570\u636e\u3002\u5728NB\u7f51\u7edc\u4e2d\uff0cMQTT\u534f\u8bae\u53ef\u4ee5\u5b9e\u73b0\u8bbe\u5907\u4e4b\u95f4\u7684\u53ef\u9760\u901a\u4fe1\uff0c\u652f\u6301QoS(Quality of Service)\u670d\u52a1\u8d28\u91cf\u4fdd\u8bc1\u673a\u5236\uff0c\u786e\u4fdd\u4e86\u6570\u636e\u7684\u53ef\u9760\u6027\u548c\u7a33\u5b9a\u6027\u3002<\/p>\n\n\n\n

\u3000\u30003. LwM2M\u534f\u8bae<\/h3>\n\n\n\n

\u3000\u3000LwM2M(Lightweight M2M)\u662f\u4e00\u79cd\u8f7b\u91cf\u7ea7\u7684\u7269\u8054\u7f51\u8bbe\u5907\u7ba1\u7406\u534f\u8bae\uff0c\u5b83\u53ef\u4ee5\u5bf9NB\u7f51\u7edc\u4e2d\u7684\u8bbe\u5907\u8fdb\u884c\u7ba1\u7406\u548c\u63a7\u5236\u3002LwM2M\u534f\u8bae\u5177\u6709\u4f4e\u529f\u8017\u3001\u4f4e\u5e26\u5bbd\u3001\u4f4e\u6210\u672c\u7b49\u7279\u70b9\uff0c\u53ef\u4ee5\u5728NB\u7f51\u7edc\u4e2d\u5b9e\u73b0\u8bbe\u5907\u7684\u8fdc\u7a0b\u7ba1\u7406\u548c\u76d1\u63a7\u3002<\/p>\n\n\n\n

\u3000\u30004. HTTP\u534f\u8bae<\/h3>\n\n\n\n

\u3000\u3000HTTP(Hypertext Transfer Protocol)\u662f\u4e00\u79cd\u4f20\u8f93\u534f\u8bae\uff0c\u5b83\u53ef\u4ee5\u5728\u4e0d\u540c\u7684\u7269\u8054\u7f51\u8bbe\u5907\u4e4b\u95f4\u4f20\u8f93\u6570\u636e\u3002\u5728NB\u7f51\u7edc\u4e2d\uff0cHTTP\u534f\u8bae\u53ef\u4ee5\u5b9e\u73b0\u8bbe\u5907\u4e4b\u95f4\u7684\u901a\u4fe1\uff0c\u652f\u6301TCP\u534f\u8bae\u548cTLS\u534f\u8bae\uff0c\u4fdd\u8bc1\u4e86\u6570\u636e\u7684\u5b89\u5168\u6027\u3002<\/p>\n\n\n\n

\u3000\u30005. UDP\u534f\u8bae<\/h3>\n\n\n\n

\u3000\u3000UDP(User Datagram Protocol)\u662f\u4e00\u79cd\u65e0\u8fde\u63a5\u7684\u4f20\u8f93\u534f\u8bae\uff0c\u5b83\u4e0d\u9700\u8981\u5efa\u7acb\u8fde\u63a5\u5c31\u53ef\u4ee5\u4f20\u8f93\u6570\u636e\u3002\u5728NB\u7f51\u7edc\u4e2d\uff0cUDP\u534f\u8bae\u53ef\u4ee5\u5b9e\u73b0\u8bbe\u5907\u4e4b\u95f4\u7684\u5feb\u901f\u901a\u4fe1\uff0c\u5177\u6709\u4f4e\u5ef6\u8fdf\u3001\u9ad8\u6548\u7387\u7b49\u7279\u70b9\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e09\u3001\u603b\u7ed3<\/h2>\n\n\n\n

\u3000\u3000NB\u7f51\u7edc\u662f\u4e00\u79cd\u4f4e\u529f\u8017\u3001\u5e7f\u8986\u76d6\u3001\u4f4e\u6210\u672c\u7684\u65e0\u7ebf\u901a\u4fe1\u6280\u672f\uff0c\u5b83\u53ef\u4ee5\u4e3a\u4f17\u591a\u7269\u8054\u7f51\u8bbe\u5907\u63d0\u4f9b\u53ef\u9760\u7684\u8fde\u63a5\u65b9\u5f0f\u3002\u5728NB\u7f51\u7edc\u4e2d\uff0c\u652f\u6301CoAP\u3001MQTT\u3001LwM2M\u3001HTTP\u548cUDP\u7b49\u591a\u79cd\u901a\u4fe1\u534f\u8bae\uff0c\u8fd9\u4e9b\u534f\u8bae\u53ef\u4ee5\u5b9e\u73b0\u8bbe\u5907\u4e4b\u95f4\u7684\u53ef\u9760\u901a\u4fe1\u3001\u8fdc\u7a0b\u7ba1\u7406\u548c\u76d1\u63a7\uff0c\u4e3a\u7269\u8054\u7f51\u7684\u53d1\u5c55\u63d0\u4f9b\u4e86\u6709\u529b\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u968f\u7740\u7269\u8054\u7f51\u6280\u672f\u7684\u4e0d\u65ad\u53d1\u5c55\uff0cNB-IoT(Narrow Band-Internet of Things)\u6280\u672f\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5404\u79cd\u667a\u80fd\u8bbe\u5907\u4e2d\u3002NB-IoT\u662f\u4e00\u79cd\u4f4e\u529f\u8017\u3001\u5e7f\u8986\u76d6\u3001\u4f4e\u6210\u672c\u7684\u65e0\u7ebf\u901a\u4fe1\u6280\u672f<\/p>\n","protected":false},"author":1,"featured_media":3671,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-global-header-display":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","footnotes":""},"categories":[36],"tags":[42,45],"class_list":["post-6326","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-n","tag-txxt"],"_links":{"self":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/6326","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/comments?post=6326"}],"version-history":[{"count":0,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/6326\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media\/3671"}],"wp:attachment":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media?parent=6326"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/categories?post=6326"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/tags?post=6326"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}