{"id":99969,"date":"2024-12-19T14:02:30","date_gmt":"2024-12-19T06:02:30","guid":{"rendered":"\/\/www.viralrail.com\/?p=99969"},"modified":"2024-12-19T14:02:38","modified_gmt":"2024-12-19T06:02:38","slug":"lsnfgmjtcsds","status":"publish","type":"post","link":"\/\/www.viralrail.com\/blog\/99969.html","title":{"rendered":"LoRa\u5ba4\u5185\u8986\u76d6\u9762\u79ef\u901a\u5e38\u662f\u591a\u5c11"},"content":{"rendered":"\n

\u3000\u3000LoRa<\/a><\/strong>\u7684\u5ba4\u5185\u901a\u4fe1\u8ddd\u79bb\u8986\u76d6\u9762\u79ef<\/strong>\u901a\u5e38\u53d7\u5230\u591a\u79cd\u56e0\u7d20\u7684\u5f71\u54cd\uff0c\u5305\u62ec\u73af\u5883\u3001\u6a21\u5757\u6027\u80fd\u3001\u9891\u6bb5\u3001\u5929\u7ebf\u8bbe\u8ba1\u7b49\u3002\u4ee5\u4e0b\u662f\u5173\u4e8e\u5ba4\u5185\u901a\u4fe1\u8ddd\u79bb\u8986\u76d6\u9762\u79ef<\/strong>\u7684\u8be6\u7ec6\u5206\u6790\uff1a<\/p>\n\n\n\n

\u3000\u3000\u4e00\u3001 LoRa\u5ba4\u5185\u901a\u4fe1\u8ddd\u79bb\u7684\u5178\u578b\u8303\u56f4<\/strong><\/h2>\n\n\n\n

\u3000\u30001. \u666e\u901a\u5ba4\u5185\u73af\u5883<\/strong><\/p>\n\n\n\n

\u3000\u3000\u5728\u969c\u788d\u7269\u8f83\u5c11\u7684\u73af\u5883(\u5982\u5f00\u653e\u5f0f\u529e\u516c\u533a\u6216\u4f4f\u5b85)\u4e2d\uff1a<\/p>\n\n\n\n

\u3000\u3000\u901a\u4fe1\u8ddd\u79bb<\/strong>\uff1a100 \u7c73\u5230 500 \u7c73\u3002<\/p>\n\n\n\n

\u3000\u3000\u7279\u70b9\uff1a\u666e\u901a\u5899\u58c1\u5bf9\u4fe1\u53f7\u7684\u635f\u8017\u6709\u9650\uff0c\u901a\u4fe1\u8ddd\u79bb\u76f8\u5bf9\u8f83\u8fdc\u3002<\/p>\n\n\n\n

\u3000\u30002. \u5de5\u4e1a\u73af\u5883\uff08\u5982\u5316\u5de5\u5382\u3001\u5de5\u5382\u8f66\u95f4\uff09<\/strong><\/p>\n\n\n\n

\u3000\u3000\u5728\u969c\u788d\u7269\u591a\u3001\u91d1\u5c5e\u8bbe\u5907\u5bc6\u96c6\u7684\u73af\u5883\u4e2d\uff1a<\/p>\n\n\n\n

\u3000\u3000\u901a\u4fe1\u8ddd\u79bb<\/strong>\uff1a50 \u7c73\u5230 300 \u7c73\u3002<\/p>\n\n\n\n

\u3000\u3000\u7279\u70b9\uff1a\u91d1\u5c5e\u53cd\u5c04\u548c\u5438\u6536\u4e25\u91cd\uff0c\u4fe1\u53f7\u635f\u8017\u5927;\u901a\u4fe1\u8ddd\u79bb\u663e\u8457\u964d\u4f4e\u3002<\/p>\n\n\n\n

\u3000\u30003. \u6781\u7aef\u590d\u6742\u73af\u5883<\/strong><\/p>\n\n\n\n

\u3000\u3000\u5982\u5730\u4e0b\u5ba4\u3001\u5c01\u95ed\u7a7a\u95f4\u6216\u9ad8\u566a\u58f0\u73af\u5883\uff1a<\/p>\n\n\n\n

\u3000\u3000\u901a\u4fe1\u8ddd\u79bb<\/strong>\uff1a\u901a\u5e38\u4f4e\u4e8e 50 \u7c73\u3002<\/p>\n\n\n\n

\u3000\u3000\u539f\u56e0\uff1a\u5899\u58c1\u3001\u8bbe\u5907\u548c\u5176\u4ed6\u969c\u788d\u7269\u53e0\u52a0\u5bfc\u81f4\u4fe1\u53f7\u5feb\u901f\u8870\u51cf\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e8c\u3001 \u5f71\u54cdLoRa\u5ba4\u5185\u901a\u4fe1\u8ddd\u79bb\u7684\u4e3b\u8981\u56e0\u7d20<\/strong><\/h2>\n\n\n\n

\u3000\u30001. \u9891\u6bb5<\/strong><\/p>\n\n\n\n

\u3000\u3000433 MHz<\/strong>\uff1a\u7a7f\u900f\u6027\u5f3a\uff0c\u901a\u4fe1\u8ddd\u79bb\u8f83\u8fdc\uff0c\u4f46\u5e26\u5bbd\u8f83\u5c0f\u3002<\/p>\n\n\n\n

\u3000\u3000\u5ba4\u5185\u5178\u578b\u901a\u4fe1\u8ddd\u79bb\uff1a200 \u7c73\u5230 500 \u7c73\u3002<\/p>\n\n\n\n

\u3000\u3000868 MHz \/ 915 MHz<\/strong>\uff1a\u5e26\u5bbd\u66f4\u9ad8\uff0c\u9002\u5408\u6570\u636e\u4f20\u8f93\uff0c\u4f46\u7a7f\u900f\u80fd\u529b\u7a0d\u5dee\u3002<\/p>\n\n\n\n

\u3000\u3000\u5ba4\u5185\u5178\u578b\u901a\u4fe1\u8ddd\u79bb\uff1a100 \u7c73\u5230 300 \u7c73\u3002<\/p>\n\n\n\n

\u3000\u30002. \u53d1\u5c04\u529f\u7387<\/strong><\/p>\n\n\n\n

\u3000\u3000LoRa\u8bbe\u5907\u7684\u53d1\u5c04\u529f\u7387\u901a\u5e38\u5728 14 dBm \u5230 22 dBm \u8303\u56f4\u5185\u3002\u53d1\u5c04\u529f\u7387\u8d8a\u9ad8\uff0c\u901a\u4fe1\u8ddd\u79bb\u8d8a\u8fdc\uff0c\u4f46\u529f\u8017\u589e\u52a0\u3002<\/p>\n\n\n\n

\u3000\u3000\u589e\u52a0\u53d1\u5c04\u529f\u7387\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u901a\u4fe1\u8ddd\u79bb\uff0c\u5c24\u5176\u5728\u9ad8\u8870\u51cf\u73af\u5883\u4e2d\u3002<\/p>\n\n\n\n

\u3000\u30003. \u63a5\u6536\u7075\u654f\u5ea6<\/strong><\/p>\n\n\n\n

\u3000\u3000LoRa \u6a21\u5757\u7684\u63a5\u6536\u7075\u654f\u5ea6\u901a\u5e38\u5728 -137 dBm \u5230 -148 dBm \u4e4b\u95f4\u3002<\/p>\n\n\n\n

\u3000\u3000\u7075\u654f\u5ea6\u8d8a\u9ad8\uff0c\u8bbe\u5907\u53ef\u4ee5\u63a5\u6536\u66f4\u5f31\u7684\u4fe1\u53f7\uff0c\u4ece\u800c\u5ef6\u957f\u901a\u4fe1\u8ddd\u79bb\u3002<\/p>\n\n\n\n

\u3000\u30004. \u6269\u9891\u56e0\u5b50\uff08SF\uff09<\/strong><\/p>\n\n\n\n

\u3000\u3000SF\u503c\u8d8a\u9ad8<\/strong>(\u5982 SF12)\uff0c\u901a\u4fe1\u8ddd\u79bb\u8d8a\u8fdc\uff0c\u4f46\u6570\u636e\u4f20\u8f93\u901f\u7387\u964d\u4f4e\u3002<\/p>\n\n\n\n

\u3000\u3000\u5ba4\u5185\u4e00\u822c\u9009\u62e9\u4e2d\u7b49 SF \u503c(\u5982 SF7 \u81f3 SF9)\u4ee5\u5e73\u8861\u8ddd\u79bb\u548c\u901f\u7387\u3002<\/p>\n\n\n\n

\u3000\u30005. \u5929\u7ebf\u8bbe\u8ba1<\/strong><\/p>\n\n\n\n

\u3000\u3000\u9ad8\u589e\u76ca\u5929\u7ebf<\/strong>\u53ef\u4ee5\u663e\u8457\u5ef6\u957f\u901a\u4fe1\u8ddd\u79bb\u3002<\/p>\n\n\n\n

\u3000\u3000\u5728\u590d\u6742\u73af\u5883\u4e2d\uff0c\u5929\u7ebf\u4f4d\u7f6e\u548c\u65b9\u5411\u4e5f\u4f1a\u5bf9\u4fe1\u53f7\u8986\u76d6\u8303\u56f4\u4ea7\u751f\u91cd\u5927\u5f71\u54cd\u3002<\/p>\n\n\n\n

\u3000\u30006. \u969c\u788d\u7269\u7c7b\u578b<\/strong><\/p>\n\n\n\n

\u3000\u3000\u666e\u901a\u5899\u58c1<\/strong>\uff1a\u6bcf\u9762\u5899\u58c1\u53ef\u80fd\u5bfc\u81f4 5~15 dB \u7684\u4fe1\u53f7\u635f\u8017\u3002<\/p>\n\n\n\n

\u3000\u3000\u91d1\u5c5e\u8bbe\u5907<\/strong>\uff1a\u91d1\u5c5e\u4f1a\u53cd\u5c04\u548c\u5438\u6536\u4fe1\u53f7\uff0c\u5bfc\u81f4\u66f4\u9ad8\u7684\u4fe1\u53f7\u635f\u8017\u3002<\/p>\n\n\n\n

\u3000\u3000\u591a\u5f84\u6548\u5e94<\/strong>\uff1a\u4fe1\u53f7\u53cd\u5c04\u4f1a\u5f15\u53d1\u5e72\u6270\u548c\u901a\u4fe1\u8d28\u91cf\u4e0b\u964d\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e09\u3001 LoRa\u5ba4\u5185\u901a\u4fe1\u8ddd\u79bb\u7684\u5178\u578b\u6d4b\u8bd5\u6570\u636e<\/strong><\/h2>\n\n\n\n

\u3000\u3000\u4ee5\u4e0b\u662f\u4e00\u4e9b\u57fa\u4e8e\u5b9e\u9645\u6d4b\u8bd5\u7684\u5ba4\u5185\u901a\u4fe1\u8ddd\u79bb\u6570\u636e\uff1a<\/p>\n\n\n\n

\u73af\u5883\u7c7b\u578b<\/th>\u969c\u788d\u7269\u6570\u91cf<\/th>\u9891\u6bb5 (MHz)<\/th>\u53d1\u5c04\u529f\u7387 (dBm)<\/th>\u901a\u4fe1\u8ddd\u79bb (\u7c73)<\/th><\/tr><\/thead>
\u5f00\u653e\u5f0f\u529e\u516c\u533a<\/td>\u5c11\u91cf\u9694\u5899<\/td>868\/915<\/td>20<\/td>300~500<\/td><\/tr>
\u666e\u901a\u4f4f\u5b85\uff08\u542b3~4\u5835\u5899\uff09<\/td>\u4e2d\u7b49\u969c\u788d\u7269<\/td>868\/915<\/td>14<\/td>100~200<\/td><\/tr>
\u5de5\u5382\u8f66\u95f4<\/td>\u91d1\u5c5e\u8bbe\u5907\u5bc6\u96c6<\/td>433<\/td>20<\/td>100~300<\/td><\/tr>
\u5316\u5de5\u5382<\/td>\u9ad8\u91d1\u5c5e\u53cd\u5c04\u548c\u5e72\u6270<\/td>868\/915<\/td>22<\/td>50~200<\/td><\/tr>
\u5730\u4e0b\u5ba4\u6216\u5c01\u95ed\u7a7a\u95f4<\/td>\u9ad8\u5899\u58c1\u5438\u6536<\/td>433<\/td>14<\/td>< 50<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u3000\u3000\u56db\u3001 \u5982\u4f55\u4f18\u5316LoRa\u7684\u5ba4\u5185\u901a\u4fe1\u8ddd\u79bb<\/strong><\/h2>\n\n\n\n

\u3000\u3000\u589e\u5927\u53d1\u5c04\u529f\u7387<\/strong><\/p>\n\n\n\n

\u3000\u3000\u4f7f\u7528\u9ad8\u529f\u7387\u8bbe\u5907(\u5982 22 dBm)\uff0c\u4f46\u9700\u6ce8\u610f\u6ee1\u8db3\u5f53\u5730\u9891\u6bb5\u7684\u6cd5\u89c4\u8981\u6c42(\u5982ETSI\u89c4\u5b9a\u7684\u529f\u7387\u9650\u5236)\u3002<\/p>\n\n\n\n

\u3000\u3000\u4f18\u5316\u5929\u7ebf\u8bbe\u8ba1<\/strong><\/p>\n\n\n\n

\u3000\u3000\u4f7f\u7528\u9ad8\u589e\u76ca\u5168\u5411\u5929\u7ebf\uff0c\u5c3d\u91cf\u51cf\u5c11\u5929\u7ebf\u4e0e\u969c\u788d\u7269\u4e4b\u95f4\u7684\u8ddd\u79bb\u3002<\/p>\n\n\n\n

\u3000\u3000\u8c03\u6574\u5929\u7ebf\u7684\u5b89\u88c5\u9ad8\u5ea6\u548c\u89d2\u5ea6\u3002<\/p>\n\n\n\n

\u3000\u3000\u8c03\u6574\u7f51\u7edc\u53c2\u6570<\/strong><\/p>\n\n\n\n

\u3000\u3000\u63d0\u9ad8\u6269\u9891\u56e0\u5b50(SF12)\u4ee5\u589e\u52a0\u4fe1\u53f7\u8986\u76d6\uff0c\u4f46\u4f1a\u964d\u4f4e\u6570\u636e\u901f\u7387\u3002<\/p>\n\n\n\n

\u3000\u3000\u51cf\u5c0f\u5e26\u5bbd(\u5982\u4ece 500 kHz \u964d\u81f3 125 kHz)\u4ee5\u63d0\u5347\u4fe1\u53f7\u5f3a\u5ea6\u3002<\/p>\n\n\n\n

\u3000\u3000\u5408\u7406\u5e03\u7f6e\u7f51\u5173<\/strong><\/p>\n\n\n\n

\u3000\u3000\u591a\u57fa\u7ad9\u534f\u4f5c\u8986\u76d6\uff0c\u51cf\u5c11\u901a\u4fe1\u76f2\u533a\u3002<\/p>\n\n\n\n

\u3000\u3000\u5728\u4fe1\u53f7\u8870\u51cf\u4e25\u91cd\u7684\u533a\u57df(\u5982\u7ba1\u9053\u6216\u8bbe\u5907\u5bc6\u96c6\u533a)\u589e\u8bbe\u7f51\u5173\u3002<\/p>\n\n\n\n

\u3000\u3000\u73b0\u573a\u6d4b\u8bd5<\/strong><\/p>\n\n\n\n

\u3000\u3000\u5728\u5b9e\u9645\u90e8\u7f72\u524d\uff0c\u5bf9\u4e0d\u540c\u4f4d\u7f6e\u7684\u4fe1\u53f7\u5f3a\u5ea6(RSSI)\u548c\u4fe1\u566a\u6bd4(SNR)\u8fdb\u884c\u6d4b\u91cf\uff0c\u4f18\u5316\u8bbe\u5907\u5e03\u5c40\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e94\u3001 \u603b\u7ed3<\/strong><\/h2>\n\n\n\n

\u3000\u3000LoRa \u7684\u5ba4\u5185\u901a\u4fe1\u8ddd\u79bb\u901a\u5e38\u5728 50 \u7c73\u5230 500 \u7c73<\/strong> \u4e4b\u95f4\uff0c\u5177\u4f53\u53d6\u51b3\u4e8e\u73af\u5883\u7684\u590d\u6742\u7a0b\u5ea6\u3001\u9891\u6bb5\u9009\u62e9\u548c\u8bbe\u5907\u53c2\u6570\u3002\u5728\u5316\u5de5\u5382\u7b49\u590d\u6742\u5de5\u4e1a\u573a\u666f\u4e2d\uff0c\u901a\u4fe1\u8ddd\u79bb\u901a\u5e38\u8f83\u77ed(50~300 \u7c73)\uff0c\u4f46\u901a\u8fc7\u4f18\u5316\u7f51\u7edc\u8bbe\u8ba1(\u5982\u5408\u7406\u90e8\u7f72\u7f51\u5173\u548c\u8c03\u6574\u53c2\u6570)\uff0c\u53ef\u4ee5\u8fdb\u4e00\u6b65\u63d0\u5347\u901a\u4fe1\u8d28\u91cf\u548c\u8986\u76d6\u8303\u56f4\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

LoRa\u7684\u5ba4\u5185\u901a\u4fe1\u8ddd\u79bb\u8986\u76d6\u9762\u79ef\u901a\u5e38\u53d7\u5230\u591a\u79cd\u56e0\u7d20\u7684\u5f71\u54cd\uff0c\u5305\u62ec\u73af\u5883\u3001\u6a21\u5757\u6027\u80fd\u3001\u9891\u6bb5\u3001\u5929\u7ebf\u8bbe\u8ba1\u7b49\u3002\u4ee5\u4e0b\u662f\u5173\u4e8e\u5ba4\u5185\u901a\u4fe1\u8ddd\u79bb\u8986\u76d6\u9762\u79ef\u7684\u8be6\u7ec6\u5206\u6790<\/p>\n","protected":false},"author":1,"featured_media":99367,"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],"class_list":["post-99969","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-l-2"],"_links":{"self":[{"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/posts\/99969","targetHints":{"allow":["GET"]}}],"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=99969"}],"version-history":[{"count":0,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/posts\/99969\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/media\/99367"}],"wp:attachment":[{"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/media?parent=99969"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/categories?post=99969"},{"taxonomy":"post_tag","embeddable":true,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/tags?post=99969"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}