2dBi\u589e\u76ca\u7684LoRa\u80f6\u68d2\u5929\u7ebf<\/strong>\uff1a\u9002\u7528\u4e8e\u591a\u79cdLPWA\u5e94\u7528\u573a\u666f\uff0c\u7279\u522b\u662f\u9700\u8981\u957f\u8ddd\u79bb\u548c\u9ad8\u53ef\u9760\u6027\u7684\u573a\u666f\u3002<\/li>\n<\/ul>\n\n\n\n\u3000\u3000\u4e94\u3001 LoRa\u5929\u7ebf\u589e\u76ca\u5bf9\u4fe1\u53f7\u7a33\u5b9a\u6027\u548c\u5e72\u6270\u6291\u5236\u80fd\u529b\u7684\u5f71\u54cd<\/h2>\n\n\n\n
\u3000\u3000LoRa\u5929\u7ebf\u589e\u76ca\u5bf9\u4fe1\u53f7\u7a33\u5b9a\u6027\u548c\u5e72\u6270\u6291\u5236\u80fd\u529b\u7684\u5f71\u54cd\u53ef\u4ee5\u4ece\u591a\u4e2a\u7814\u7a76\u548c\u6848\u4f8b\u5206\u6790\u4e2d\u5f97\u5230\u8bc1\u5b9e\u3002\u4ee5\u4e0b\u662f\u8be6\u7ec6\u8bf4\u660e\uff1a<\/p>\n\n\n\n
\u3000\u3000\u63d0\u9ad8\u63a5\u6536\u5929\u7ebf\u7684\u589e\u76ca\u53ef\u4ee5\u663e\u8457\u589e\u5f3aLoRa\u6a21\u5757\u7684\u4f20\u8f93\u8ddd\u79bb\uff0c\u4ece\u800c\u63d0\u5347\u4fe1\u53f7\u7684\u7a33\u5b9a\u6027\u3002\u8fd9\u662f\u56e0\u4e3a\u589e\u76ca\u8d8a\u9ad8\uff0c\u5929\u7ebf\u80fd\u591f\u6355\u6349\u5230\u66f4\u591a\u7684\u4fe1\u53f7\u80fd\u91cf\uff0c\u5373\u4f7f\u5728\u8fdc\u8ddd\u79bb\u6216\u590d\u6742\u73af\u5883\u4e2d\u4e5f\u80fd\u4fdd\u6301\u8f83\u9ad8\u7684\u4fe1\u53f7\u8d28\u91cf\u3002<\/p>\n\n\n\n
\u3000\u3000LoRa\u6280\u672f\u672c\u8eab\u5177\u6709\u5f88\u5f3a\u7684\u6297\u5e72\u6270\u80fd\u529b\uff0c\u80fd\u591f\u6709\u6548\u62b5\u6297\u540c\u9891\u5e72\u6270\u53ca\u5404\u79cd\u566a\u58f0\u3002\u7136\u800c\uff0c\u901a\u8fc7\u589e\u52a0\u5929\u7ebf\u589e\u76ca\uff0c\u53ef\u4ee5\u8fdb\u4e00\u6b65\u589e\u5f3a\u8fd9\u79cd\u6297\u5e72\u6270\u80fd\u529b\u3002\u4f8b\u5982\uff0c\u5728IEEE 802.15.4g\u5e72\u6270\u6d4b\u8bd5\u4e2d\uff0c\u5f53SF( spreading factor)\u9ad8\u4e8eSF9\u65f6\uff0c\u5373\u4f7f\u5b58\u5728\u5f3a\u5e72\u6270\u8005(+16 dB)\uff0c\u6570\u636e\u5305\u4e22\u5931\u4e5f\u5fae\u4e4e\u5176\u5fae\u3002\u8fd9\u8868\u660e\u589e\u76ca\u7684\u63d0\u9ad8\u6709\u52a9\u4e8e\u7ef4\u6301\u4f4e\u8bef\u7801\u7387\u548c\u9ad8\u53ef\u9760\u6027\u3002<\/p>\n\n\n\n
\u3000\u3000LoRa\u6280\u672f\u5185\u7f6e\u4e86\u524d\u5411\u7ea0\u9519\u7f16\u7801\uff0c\u8fd9\u79cd\u7f16\u7801\u65b9\u5f0f\u53ef\u4ee5\u63d0\u9ad8\u4fe1\u53f7\u4f20\u8f93\u7684\u7a33\u5b9a\u6027\uff0c\u4ece\u800c\u589e\u5f3a\u5176\u7a7f\u5899\u80fd\u529b\u3002\u7ed3\u5408\u5929\u7ebf\u589e\u76ca\u7684\u63d0\u5347\uff0c\u53ef\u4ee5\u8fdb\u4e00\u6b65\u4f18\u5316\u4fe1\u53f7\u7684\u7a33\u5b9a\u6027\u548c\u8986\u76d6\u8303\u56f4\u3002<\/p>\n\n\n\n
\u3000\u3000\u5728\u519c\u4e1a\u76d1\u6d4b\u7b49\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u901a\u8fc7\u589e\u52a0\u4fe1\u53f7\u7684\u529f\u7387\u6765\u589e\u5f3a\u4fe1\u53f7\u5f3a\u5ea6\uff0c\u4ece\u800c\u6291\u5236\u5e72\u6270\uff0c\u662f\u5e38\u89c1\u7684\u505a\u6cd5\u3002\u8fd9\u4e0d\u4ec5\u63d0\u9ad8\u4e86\u4fe1\u53f7\u7684\u7a33\u5b9a\u6027\uff0c\u8fd8\u589e\u5f3a\u4e86\u7cfb\u7edf\u7684\u6574\u4f53\u6027\u80fd\u3002<\/p>\n\n\n\n
\u3000\u3000\u5408\u7406\u7684\u5929\u7ebf\u8bbe\u8ba1\u548c\u589e\u76ca\u9009\u62e9\u5bf9\u4e8e\u63d0\u9ad8LoRa\u901a\u4fe1\u7684\u7a33\u5b9a\u6027\u548c\u6297\u5e72\u6270\u80fd\u529b\u81f3\u5173\u91cd\u8981\u3002\u901a\u8fc7\u4f18\u5316\u5929\u7ebf\u4f4d\u7f6e\u548c\u65b9\u5411\uff0c\u53ef\u4ee5\u51cf\u5c11\u4fe1\u53f7\u5e72\u6270\uff0c\u786e\u4fdd\u66f4\u597d\u7684\u901a\u4fe1\u8d28\u91cf\u3002<\/p>\n\n\n\n
\u3000\u3000\u5929\u7ebf\u7684\u9009\u62e9\u548c\u8c03\u8bd5\u662f\u786e\u4fddLoRa\u901a\u4fe1\u8d28\u91cf\u548c\u8986\u76d6\u8303\u56f4\u7684\u5173\u952e\u56e0\u7d20\u3002\u901a\u8fc7\u9009\u62e9\u7b26\u5408\u5de5\u4f5c\u9891\u7387\u3001\u589e\u76ca\u3001\u6781\u5316\u65b9\u5f0f\u7b49\u8981\u6c42\u7684\u5408\u9002\u5929\u7ebf\uff0c\u5e76\u901a\u8fc7\u5b9a\u4f4d\u6700\u4f73\u4f4d\u7f6e\u3001\u5339\u914d\u963b\u6297\u3001\u4fe1\u53f7\u6d4b\u8bd5\u4e0e\u4f18\u5316\u3001\u63d0\u9ad8\u6297\u5e72\u6270\u80fd\u529b\u7b49\u6280\u5de7\u6765\u8c03\u8bd5\u5929\u7ebf\uff0c\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8LoRa\u901a\u4fe1\u7684\u7a33\u5b9a\u6027\u548c\u6027\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
LoRa(Long Range)\u6280\u672f\u4f7f\u7528\u7684\u5929\u7ebf\u589e\u76ca(\u4ee5dBi\u4e3a\u5355\u4f4d)\u901a\u5e38\u57282 dBi\u52309 dBi\u4e4b\u95f4\uff0c\u5177\u4f53\u53d6\u51b3\u4e8e\u5e94\u7528\u573a\u666f\u548c\u5929\u7ebf\u7684\u8bbe\u8ba1\u3002\u5bf9\u4e8e\u5ba4\u5185\u6216\u8fd1\u8ddd\u79bb\u5e94\u7528<\/p>\n","protected":false},"author":1,"featured_media":95849,"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":[54,223],"class_list":["post-96790","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-l-2","tag-txzy"],"_links":{"self":[{"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/posts\/96790"}],"collection":[{"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/comments?post=96790"}],"version-history":[{"count":0,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/posts\/96790\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/media\/95849"}],"wp:attachment":[{"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/media?parent=96790"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/categories?post=96790"},{"taxonomy":"post_tag","embeddable":true,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/tags?post=96790"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}