{"id":99224,"date":"2024-11-16T23:01:08","date_gmt":"2024-11-16T15:01:08","guid":{"rendered":"\/\/www.viralrail.com\/?p=99224"},"modified":"2024-11-16T23:02:44","modified_gmt":"2024-11-16T15:02:44","slug":"lwxtxjsdtxjl","status":"publish","type":"post","link":"\/\/www.viralrail.com\/blog\/99224.html","title":{"rendered":"LoRa\u65e0\u7ebf\u901a\u4fe1\u6280\u672f\u7684\u901a\u4fe1\u8ddd\u79bb"},"content":{"rendered":"\n

\u3000\u3000LoRa<\/a>\u65e0\u7ebf\u901a\u4fe1\u6280\u672f<\/strong>\u4ee5\u5176\u8d85\u957f\u7684\u4f20\u8f93\u8ddd\u79bb\u800c\u95fb\u540d\uff0c\u5177\u4f53\u901a\u4fe1\u8ddd\u79bb\u4f1a\u56e0\u73af\u5883\u548c\u6761\u4ef6\u7684\u4e0d\u540c\u800c\u6709\u6240\u53d8\u5316\u3002\u5728\u57ce\u9547\u73af\u5883\u4e2d\uff0cLoRa\u7684\u4f20\u8f93\u8ddd\u79bb\u901a\u5e38\u57282\u52305\u516c\u91cc\u4e4b\u95f4\u3002\u800c\u5728\u90ca\u533a\u6216\u8f83\u4e3a\u5f00\u9614\u7684\u5730\u533a\uff0cLoRa\u7684\u4f20\u8f93\u8ddd\u79bb\u53ef\u4ee5\u66f4\u8fdc\uff0c\u4e00\u822c\u53ef\u8fbe10\u516c\u91cc\uff0c\u751a\u81f3\u5728\u67d0\u4e9b\u6761\u4ef6\u4e0b\u80fd\u8fbe\u523020\u516c\u91cc\u3002<\/p>\n\n\n\n

\u3000\u3000\u6b64\u5916\uff0c\u5728\u7406\u60f3\u6761\u4ef6\u4e0b(\u5982\u5929\u6c14\u826f\u597d\u4e14\u65e0\u5e72\u6270)\uff0cLoRa\u7684\u6700\u5927\u7a7a\u7a7a\u901a\u4fe1\u8ddd\u79bb\u53ef\u4ee5\u8fbe\u523010\u516c\u91cc\u3002\u5728\u5f00\u9614\u5e73\u539f\u548c\u6d77\u6d0b\u7b49\u73af\u5883\u4e2d\uff0cLoRa\u7684\u4f20\u8f93\u8ddd\u79bb\u53ef\u4ee5\u66f4\u8fdc\uff0c\u751a\u81f3\u53ef\u80fd\u8d85\u8fc715\u516c\u91cc\u3002\u7136\u800c\uff0c\u5728\u57ce\u5e02\u6216\u6709\u906e\u6321\u7269\u7684\u5730\u533a\uff0c\u4f20\u8f93\u8ddd\u79bb\u53ef\u80fd\u4f1a\u53d7\u5230\u9650\u5236\u3002<\/p>\n\n\n\n

\u3000\u3000LoRa\u6280\u672f<\/a>\u8fd8\u652f\u6301\u4f4e\u529f\u8017\u8bbe\u8ba1\uff0c\u4f7f\u5176\u9002\u7528\u4e8e\u7269\u8054\u7f51\u8bbe\u5907\uff0c\u5982\u4f20\u611f\u5668\u7b49\uff0c\u53ef\u4ee5\u957f\u65f6\u95f4\u8fd0\u884c\u3002\u603b\u4f53\u800c\u8a00\uff0cLoRa\u6280\u672f\u5728\u4e0d\u540c\u7684\u5730\u7406\u73af\u5883\u4e2d\u5177\u6709\u5f88\u5927\u7684\u7075\u6d3b\u6027\u548c\u9002\u5e94\u6027\uff0c\u9002\u7528\u4e8e\u9700\u8981\u8986\u76d6\u5e7f\u6cdb\u533a\u57df\u7684\u5e94\u7528\u573a\u666f\uff0c\u5982\u73af\u5883\u76d1\u6d4b\u3001\u519c\u4e1a\u7269\u8054\u7f51\u7b49\u3002<\/p>\n\n\n\n

\"\u65e0\u7f51\u901a\u4fe1\u6280\u672f\"<\/figure>\n\n\n\n

\u3000\u3000\u4e00\u3001 LoRa\u65e0\u7ebf\u901a\u4fe1\u6280\u672f\u5728\u4e0d\u540c\u73af\u5883\u4e0b\u7684\u901a\u4fe1\u8ddd\u79bb<\/h2>\n\n\n\n

\u3000\u3000LoRa\u65e0\u7ebf\u901a\u4fe1\u6280\u672f<\/a>\u5728\u4e0d\u540c\u73af\u5883\u6761\u4ef6\u4e0b\u7684\u901a\u4fe1\u8ddd\u79bb\u53d8\u5316\u663e\u8457\uff0c\u4e3b\u8981\u53d7\u5230\u73af\u5883\u56e0\u7d20\u3001\u5730\u5f62\u3001\u969c\u788d\u7269\u4ee5\u53ca\u4f20\u64ad\u56e0\u5b50(SF)\u7684\u5f71\u54cd\u3002<\/p>\n\n\n\n

\u3000\u3000\u5728\u7406\u60f3\u7684\u81ea\u7531\u7a7a\u95f4\u4e2d\uff0cLoRa\u4fe1\u53f7\u7406\u8bba\u4e0a\u53ef\u4ee5\u8fbe\u5230\u975e\u5e38\u8fdc\u7684\u8ddd\u79bb\u3002\u4f8b\u5982\uff0c\u57282.4 GHz\u9891\u6bb5\u4e0b\uff0cLoRa\u4fe1\u53f7\u5728\u7406\u60f3\u6761\u4ef6\u4e0b\u7684\u6700\u5927\u4f20\u8f93\u8ddd\u79bb\u53ef\u4ee5\u8fbe\u5230133\u516c\u91cc\u3002\u7136\u800c\uff0c\u8fd9\u662f\u7406\u8bba\u503c\uff0c\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u96be\u4ee5\u5b9e\u73b0\u3002<\/p>\n\n\n\n

\u3000\u3000\u5728\u5ba4\u5185\u73af\u5883\u4e2d\uff0c\u7531\u4e8e\u8def\u5f84\u635f\u8017\u8f83\u5927\uff0cLoRa\u7684\u901a\u4fe1\u8303\u56f4\u663e\u8457\u51cf\u5c11\u3002\u4f8b\u5982\uff0c\u5728\u4f7f\u7528\u6269\u5c55\u56e0\u5b50(SF)\u4e3a12\u548c\u6700\u4f4e\u5e26\u5bbd(203 kHz)\u7684\u60c5\u51b5\u4e0b\uff0c\u6700\u5927\u901a\u4fe1\u8303\u56f4\u4e3a74\u7c73\uff0c\u6700\u9ad8\u6570\u636e\u901f\u7387\u4e3a0.595 kbit\/s\u3002\u800c\u5728\u57ce\u5e02\u73af\u5883\u4e2d\uff0c\u901a\u4fe1\u8303\u56f4\u5219\u8fdb\u4e00\u6b65\u53d7\u9650\uff0c\u901a\u5e38\u5728\u51e0\u516c\u91cc\u8303\u56f4\u5185\u3002\u4f8b\u5982\uff0c\u5728\u590d\u6742\u57ce\u5e02\u533a\u57df\uff0c\u901a\u4fe1\u8ddd\u79bb\u7ea6\u4e3a5\u516c\u91cc\uff0c\u800c\u5728\u519c\u6751\u548c\u6d77\u5cb8\u533a\u57df\uff0c\u8ddd\u79bb\u53ef\u8fbe20\u516c\u91cc\u3002<\/p>\n\n\n\n

\u3000\u3000\u5728\u5730\u4e0b\u73af\u5883\u4e2d\uff0cLoRa\u7684\u901a\u4fe1\u6027\u80fd\u53d7\u5230\u6df1\u5ea6\u548c\u969c\u788d\u7269\u7684\u5f71\u54cd\u3002\u4f8b\u5982\uff0c\u5728\u68ee\u6797\u73af\u5883\u4e2d\uff0c\u5f53\u53d1\u5c04\u5668\u4f4d\u4e8e1\u7c73\u6df1\u5904\u65f6\uff0c\u901a\u4fe1\u8d28\u91cf\u8d85\u8fc790%\uff0c\u76f4\u5230100\u7c73\u7684\u8ddd\u79bb;\u4f46\u5f53\u6df1\u5ea6\u589e\u52a0\u52301.5\u7c73\u65f6\uff0c\u901a\u4fe1\u8d28\u91cf\u663e\u8457\u4e0b\u964d\uff0c\u65e0\u6cd5\u8fbe\u523020\u7c73\u7684\u8ddd\u79bb\u3002\u6b64\u5916\uff0c\u5728\u6709\u969c\u788d\u7269\u7684\u57ce\u5e02\u5bc6\u96c6\u73af\u5883\u4e2d\uff0cLoRa\u901a\u4fe1\u7684\u6027\u80fd\u5728SF\u6700\u5c0f\u503c\u65f6\u6700\u5dee\uff0c\u8bbe\u5907\u95f4\u7684\u901a\u4fe1\u53ea\u80fd\u8fbe\u523015\u7c73\u7684\u8ddd\u79bb\u3002<\/p>\n\n\n\n

\u3000\u3000\u5728\u6781\u5730\u5730\u533a\uff0cLoRa\u6280\u672f\u80fd\u591f\u5b9e\u73b0\u6570\u5341\u516c\u91cc\u7684\u7efc\u5408\u901a\u4fe1\u8303\u56f4\u3002\u4f8b\u5982\uff0c\u5728\u5357\u6781\u6d32\u6237\u5916\u6781\u5730\u533a\u57df\uff0c\u901a\u8fc7\u5b89\u88c5\u5b9a\u5411\u5929\u7ebf\u53ef\u5b9e\u73b0\u6700\u592730\u516c\u91cc\u7684\u8303\u56f4\u3002\u800c\u5728\u590d\u6742\u5730\u5f62\u4e2d\uff0c\u5982\u5c71\u5730\u73af\u5883\uff0c\u65e0\u7ebf\u7535\u4f20\u8f93\u53ef\u89c6\u4e3a\u8fd1\u7ebf-of-sight(NLoS)\uff0c\u6b64\u65f6\u901a\u4fe1\u8ddd\u79bb\u4e0e\u8def\u5f84\u4e0a\u7684\u529f\u7387\u8870\u51cf\u6210\u6b63\u6bd4\uff0c\u9884\u8ba1\u6570\u636e\u4f20\u8f93\u8ddd\u79bb\u53ef\u8fbe\u6570\u767e\u516c\u91cc\u3002<\/p>\n\n\n\n

\u3000\u3000\u6570\u636e\u901f\u7387\u548c\u4f20\u64ad\u56e0\u5b50\u5bf9LoRa\u7684\u901a\u4fe1\u8ddd\u79bb\u6709\u663e\u8457\u5f71\u54cd\u3002\u4f8b\u5982\uff0c\u5728\u57ce\u5e02\u573a\u666f\u4e2d\uff0c\u4f7f\u7528\u4f4e\u6570\u636e\u901f\u7387(DR0)\u65f6\uff0c\u8986\u76d6\u8303\u56f4\u589e\u52a0\u4e86132%\uff0c\u800c\u5728\u519c\u6751\u573a\u666f\u4e2d\uff0c\u6700\u5927\u8fde\u63a5\u70b9\u8ddd\u79bb\u8fbe\u523018.5\u516c\u91cc\u3002\u6b64\u5916\uff0c\u5728\u68ee\u6797\u73af\u5883\u4e2d\uff0c\u968f\u7740SF\u4ece7\u589e\u52a0\u523012.\u63a5\u6536\u5305\u7684\u901f\u7387\u4e0e\u6df1\u5ea6\u7684\u5173\u7cfb\u663e\u793a\uff0c\u901a\u4fe1\u8d28\u91cf\u8d85\u8fc790%\uff0c\u800cSF\u6700\u5c0f\u503c\u65f6\u7684\u901a\u4fe1\u8ddd\u79bb\u65e0\u6cd5\u8fbe\u5230\u8fd9\u4e00\u6c34\u5e73\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e8c\u3001 LoRa\u6280\u672f\u7684\u4f4e\u529f\u8017\u5bf9\u901a\u4fe1\u8ddd\u79bb\u7684\u5f71\u54cd<\/h2>\n\n\n\n

\u3000\u3000LoRa\u6280\u672f\u7684\u4f4e\u529f\u8017\u8bbe\u8ba1\u4e3b\u8981\u901a\u8fc7\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\u5b9e\u73b0\uff1a<\/p>\n\n\n\n

    \n
  • \u3000\u3000\u6269\u9891\u8c03\u5236\u6280\u672f<\/strong>\uff1aLoRa\u4f7f\u7528\u7ebf\u6027\u8c03\u9891\u6269\u9891(Chirp Spread Spectrum, CSS)\u8c03\u5236\u6280\u672f\uff0c\u8fd9\u79cd\u6280\u672f\u80fd\u591f\u663e\u8457\u589e\u52a0\u901a\u4fe1\u8ddd\u79bb\u3002CSS\u8c03\u5236\u4f7fLoRa\u8bbe\u5907\u80fd\u591f\u5728\u5e7f\u6cdb\u7684\u9891\u7387\u8303\u56f4\u5185\u4f20\u8f93\u6570\u636e\uff0c\u63d0\u9ad8\u4e86\u6297\u5e72\u6270\u80fd\u529b\uff0c\u5e76\u652f\u6301\u957f\u8ddd\u79bb\u901a\u4fe1\u3002<\/li>\n\n\n\n
  • \u3000\u3000\u9ad8\u6269\u9891\u56e0\u5b50\uff08SF\uff09<\/strong> \uff1a\u6269\u9891\u56e0\u5b50\u662f\u76f4\u63a5\u5f71\u54cd\u4fe1\u53f7\u4f20\u8f93\u6027\u80fd\u7684\u91cd\u8981\u53c2\u6570\uff0c\u5b83\u5b9a\u4e49\u4e86\u6570\u636e\u5728\u9891\u7387\u8303\u56f4\u5185\u7684\u6269\u5c55\u7a0b\u5ea6\u3002\u8f83\u9ad8\u7684\u6269\u9891\u56e0\u5b50\u53ef\u4ee5\u63d0\u9ad8\u4fe1\u53f7\u589e\u76ca\uff0c\u4ece\u800c\u589e\u5f3a\u6297\u566a\u58f0\u548c\u5e72\u6270\u7684\u80fd\u529b\u3002<\/li>\n\n\n\n
  • \u3000\u3000\u524d\u5411\u7ea0\u9519\u7f16\u7801\uff08FEC\uff09<\/strong> \uff1aLoRa\u5e94\u7528\u4e86\u524d\u5411\u7ea0\u9519\u7f16\u7801\u6280\u672f\uff0c\u5728\u4f20\u8f93\u4fe1\u606f\u4e2d\u52a0\u5165\u5197\u4f59\uff0c\u6709\u6548\u62b5\u6297\u591a\u5f84\u8870\u843d\u3002\u867d\u7136\u8fd9\u727a\u7272\u4e86\u4e00\u4e9b\u4f20\u8f93\u6548\u7387\uff0c\u4f46\u63d0\u9ad8\u4e86\u4f20\u8f93\u7684\u53ef\u9760\u6027\u3002<\/li>\n\n\n\n
  • \u3000\u3000\u4f4e\u529f\u8017\u8bbe\u8ba1<\/strong>\uff1aLoRa\u6280\u672f\u652f\u6301\u957f\u65f6\u95f4\u7684\u4f4e\u529f\u8017\u8fd0\u884c\uff0c\u5373\u4f7f\u4f7f\u7528\u9502\u79bb\u5b50\u7535\u6c60\u6216\u592a\u9633\u80fd\u677f\u7b49\u5c0f\u529f\u7387\u7535\u6e90\u4e5f\u80fd\u5b9e\u73b0\u3002\u5176\u63a5\u6536\u7535\u6d41\u53ef\u63a7\u5236\u572810mA\uff0c\u7761\u7720\u7535\u6d41\u53ef\u63a7\u5236\u5728200nA\uff0c\u4ece\u800c\u5ef6\u957f\u7535\u6c60\u4f7f\u7528\u65f6\u95f4\u548c\u4f7f\u7528\u5bff\u547d\u3002<\/li>\n<\/ul>\n\n\n\n

    \u3000\u3000\u8fd9\u4e9b\u6280\u672f\u5171\u540c\u4f5c\u7528\uff0c\u4f7f\u5f97LoRa\u5728\u4fdd\u6301\u4f4e\u529f\u8017\u7684\u540c\u65f6\uff0c\u660e\u663e\u589e\u52a0\u4e86\u901a\u4fe1\u8ddd\u79bb\u548c\u7f51\u7edc\u6548\u7387\uff0c\u5e76\u6d88\u9664\u4e86\u5e72\u6270\u3002\u5177\u4f53\u6765\u8bf4\uff0c\u5728\u57ce\u5e02\u5730\u533a\uff0cLoRa\u53ef\u4ee5\u5b9e\u73b0\u51e0\u516c\u91cc\u7684\u901a\u4fe1\u8ddd\u79bb\uff0c\u800c\u5728\u519c\u6751\u5730\u533a\uff0c\u901a\u4fe1\u8ddd\u79bb\u53ef\u4ee5\u8fbe\u523015\u516c\u91cc\u3002\u6b64\u5916\uff0cLoRaWAN\u7f51\u7edc\u901a\u5e38\u91c7\u7528\u661f\u5f62\u62d3\u6251\u7ed3\u6784\u90e8\u7f72\uff0c\u8fdb\u4e00\u6b65\u63d0\u9ad8\u4e86\u7f51\u7edc\u7684\u8986\u76d6\u8303\u56f4\u548c\u901a\u4fe1\u6548\u7387\u3002<\/p>\n\n\n\n

    \u3000\u3000\u4e09\u3001 \u57ce\u5e02\u73af\u5883\u4e2dLoRa\u65e0\u7ebf\u901a\u4fe1\u6280\u672f\u7684\u4f20\u8f93\u8ddd\u79bb\u53d7\u5230\u54ea\u4e9b\u56e0\u7d20\u7684\u9650\u5236?<\/h2>\n\n\n\n

    \u3000\u3000\u5728\u57ce\u5e02\u73af\u5883\u4e2d\uff0cLoRa\u65e0\u7ebf\u901a\u4fe1\u6280\u672f\u7684\u4f20\u8f93\u8ddd\u79bb\u53d7\u5230\u591a\u79cd\u56e0\u7d20\u7684\u9650\u5236\u3002\u4ee5\u4e0b\u662f\u4e3b\u8981\u5f71\u54cd\u56e0\u7d20\uff1a<\/p>\n\n\n\n

      \n
    • \u3000\u3000\u5efa\u7b51\u7269\u548c\u5730\u5f62\u969c\u788d<\/strong>\uff1a\u57ce\u5e02\u73af\u5883\u4e2d\u7684\u5efa\u7b51\u7269\u5bc6\u5ea6\u548c\u9ad8\u5ea6\u663e\u8457\u5f71\u54cdLoRa\u4fe1\u53f7\u7684\u4f20\u64ad\u3002\u5efa\u7b51\u7269\u4f1a\u963b\u6321\u4fe1\u53f7\uff0c\u5bfc\u81f4\u4fe1\u53f7\u8870\u51cf\u548c\u591a\u5f84\u6548\u5e94\uff0c\u4ece\u800c\u9650\u5236\u4f20\u8f93\u8ddd\u79bb\u3002\u6b64\u5916\uff0c\u5730\u5f62\u8d77\u4f0f\u4e5f\u4f1a\u5bf9\u4fe1\u53f7\u4f20\u64ad\u4ea7\u751f\u8d1f\u9762\u5f71\u54cd\u3002<\/li>\n\n\n\n
    • \u3000\u3000\u5929\u7ebf\u957f\u5ea6\u548c\u7c7b\u578b<\/strong>\uff1a\u4e0d\u540c\u957f\u5ea6\u7684\u5929\u7ebf\u5bf9\u4fe1\u53f7\u4f20\u8f93\u8303\u56f4\u548c\u8d28\u91cf\u6709\u663e\u8457\u5f71\u54cd\u3002\u8f83\u77ed\u7684\u5929\u7ebf\u5728\u57ce\u5e02\u73af\u5883\u4e2d\u901a\u5e38\u53ea\u80fd\u5b9e\u73b0\u7ea61\u516c\u91cc\u7684\u4f20\u8f93\u8ddd\u79bb\uff0c\u800c\u8f83\u957f\u7684\u5929\u7ebf\u5219\u80fd\u652f\u6301\u8d85\u8fc74\u516c\u91cc\u7684\u6570\u636e\u4f20\u8f93\u3002\u7136\u800c\uff0c\u5373\u4f7f\u4f7f\u7528\u8f83\u957f\u7684\u5929\u7ebf\uff0c\u4fe1\u53f7\u5f3a\u5ea6\u4ecd\u4f1a\u968f\u7740\u8ddd\u79bb\u589e\u52a0\u800c\u8870\u51cf\u3002<\/li>\n\n\n\n
    • \u3000\u3000\u4fe1\u566a\u6bd4\uff08SNR\uff09\u548c\u6269\u5c55\u56e0\u5b50\uff08SF\uff09<\/strong> \uff1a\u4fe1\u566a\u6bd4\u662f\u5f71\u54cd\u4f20\u8f93\u8ddd\u79bb\u7684\u5173\u952e\u56e0\u7d20\u4e4b\u4e00\u3002\u66f4\u9ad8\u7684\u4fe1\u566a\u6bd4\u610f\u5473\u7740\u66f4\u8fdc\u7684\u6210\u529f\u4f20\u8f93\u8ddd\u79bb\uff0c\u4f46\u540c\u65f6\u4e5f\u589e\u52a0\u4e86\u5e72\u6270\u7684\u53ef\u80fd\u6027\u3002\u6269\u5c55\u56e0\u5b50(SF)\u7684\u9009\u62e9\u4e5f\u4f1a\u5f71\u54cd\u4f20\u8f93\u8ddd\u79bb\uff0c\u8f83\u9ad8\u7684SF\u503c\u867d\u7136\u53ef\u4ee5\u589e\u52a0\u4f20\u8f93\u8ddd\u79bb\uff0c\u4f46\u4e5f\u589e\u52a0\u4e86\u5e72\u6270\u7684\u53ef\u80fd\u6027\u3002<\/li>\n\n\n\n
    • \u3000\u3000\u9891\u7387\u548c\u8def\u5f84\u635f\u8017<\/strong>\uff1aLoRa\u6280\u672f\u5728\u4e0d\u540c\u9891\u7387\u4e0b\u7684\u8868\u73b0\u4e0d\u540c\u3002\u4f8b\u5982\uff0c\u5728\u6b27\u6d32\u9891\u7387\u4e0b\uff0cLoRa\u6a21\u5757\u7684\u6700\u5927\u4f20\u8f93\u8ddd\u79bb\u53ef\u4ee5\u8fbe\u523015\u516c\u91cc\u3002\u7136\u800c\uff0c\u5728\u57ce\u5e02\u73af\u5883\u4e2d\uff0c\u7531\u4e8e\u8def\u5f84\u635f\u8017\u548c\u9634\u5f71\u8870\u843d\u7684\u5f71\u54cd\uff0c\u5b9e\u9645\u4f20\u8f93\u8ddd\u79bb\u901a\u5e38\u4f1a\u66f4\u77ed\u3002<\/li>\n\n\n\n
    • \u3000\u3000\u8bbe\u5907\u529f\u7387\u548c\u5929\u7ebf\u589e\u76ca<\/strong>\uff1a\u8bbe\u5907\u7684\u529f\u7387\u548c\u5929\u7ebf\u7684\u589e\u76ca\u4e5f\u4f1a\u5f71\u54cd\u4f20\u8f93\u8ddd\u79bb\u3002\u8f83\u4f4e\u529f\u7387\u548c\u6807\u51c6\u5929\u7ebf(\u5982\u5355\u6781\u5929\u7ebf)\u4f1a\u5bfc\u81f4\u4fe1\u53f7\u5f3a\u5ea6\u51cf\u5f31\uff0c\u4ece\u800c\u9650\u5236\u4f20\u8f93\u8ddd\u79bb\u3002<\/li>\n\n\n\n
    • \u3000\u3000\u7f51\u5173\u4f4d\u7f6e\u548c\u89c6\u7ebf<\/strong>\uff1a\u7f51\u5173\u7684\u4f4d\u7f6e\u548c\u662f\u5426\u80fd\u591f\u5b9e\u73b0\u89c6\u7ebf\u5f00\u9614\u4e5f\u662f\u91cd\u8981\u56e0\u7d20\u3002\u5982\u679c\u7f51\u5173\u4f4d\u4e8e\u65e0\u7ebf\u7535\u5854\u4e0a\u6216\u63a5\u8fd1\u5f00\u9614\u89c6\u91ce\uff0c\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u4f20\u8f93\u8ddd\u79bb\u3002\u53cd\u4e4b\uff0c\u5982\u679c\u7f51\u5173\u88ab\u5efa\u7b51\u7269\u6216\u5176\u4ed6\u969c\u788d\u7269\u906e\u6321\uff0c\u5219\u4f20\u8f93\u8ddd\u79bb\u4f1a\u5927\u5e45\u51cf\u5c11\u3002<\/li>\n\n\n\n
    • \u3000\u3000\u6570\u636e\u5305\u4e22\u5931\u548c\u4fe1\u566a\u6bd4\u6ce2\u52a8<\/strong>\uff1a\u6570\u636e\u5305\u4e22\u5931\u548c\u4fe1\u566a\u6bd4\u6ce2\u52a8\u4e5f\u662f\u5f71\u54cd\u4f20\u8f93\u8ddd\u79bb\u7684\u91cd\u8981\u56e0\u7d20\u3002\u8d85\u8fc7-120dBm\u7684\u9608\u503c\u4f1a\u5bfc\u81f4\u6570\u636e\u5305\u635f\u574f\u6216\u4e22\u5931\uff0c\u800c\u4fe1\u566a\u6bd4\u7684\u6ce2\u52a8\u4e5f\u4f1a\u5bfc\u81f4\u4fe1\u53f7\u8d28\u91cf\u4e0d\u7a33\u5b9a\u3002<\/li>\n<\/ul>\n\n\n\n

      \u3000\u3000LoRa\u65e0\u7ebf\u901a\u4fe1\u6280\u672f\u5728\u57ce\u5e02\u73af\u5883\u4e2d\u7684\u4f20\u8f93\u8ddd\u79bb\u53d7\u5230\u5efa\u7b51\u7269\u548c\u5730\u5f62\u969c\u788d\u3001\u5929\u7ebf\u957f\u5ea6\u548c\u7c7b\u578b\u3001\u4fe1\u566a\u6bd4\u548c\u6269\u5c55\u56e0\u5b50\u3001\u9891\u7387\u548c\u8def\u5f84\u635f\u8017\u3001\u8bbe\u5907\u529f\u7387\u548c\u5929\u7ebf\u589e\u76ca\u3001\u7f51\u5173\u4f4d\u7f6e\u548c\u89c6\u7ebf\u4ee5\u53ca\u6570\u636e\u5305\u4e22\u5931\u548c\u4fe1\u566a\u6bd4\u6ce2\u52a8\u7b49\u591a\u79cd\u56e0\u7d20\u7684\u9650\u5236\u3002<\/p>\n\n\n\n

      \u3000\u3000\u56db\u3001 LoRa\u65e0\u7ebf\u901a\u4fe1\u6280\u672f\u5728\u519c\u4e1a\u7269\u8054\u7f51\u548c\u73af\u5883\u76d1\u6d4b\u7b49\u5e94\u7528\u573a\u666f\u4e2d\u7684\u5b9e\u9645\u8868\u73b0<\/h2>\n\n\n\n

      \u3000\u3000LoRa\u65e0\u7ebf\u901a\u4fe1\u6280\u672f\u5728\u519c\u4e1a\u7269\u8054\u7f51\u548c\u73af\u5883\u76d1\u6d4b\u7b49\u5e94\u7528\u573a\u666f\u4e2d\u8868\u73b0\u51fa\u8272\uff0c\u5177\u6709\u663e\u8457\u7684\u4f18\u52bf\u548c\u5b9e\u9645\u5e94\u7528\u4ef7\u503c\u3002<\/p>\n\n\n\n

      \u3000\u3000LoRa\u6280\u672f\u5728\u519c\u4e1a\u7269\u8054\u7f51\u4e2d\u7684\u5e94\u7528\u975e\u5e38\u5e7f\u6cdb\u3002LoRa\u662f\u4e00\u79cd\u4f4e\u529f\u8017\u3001\u957f\u8ddd\u79bb\u7684\u65e0\u7ebf\u901a\u4fe1\u6280\u672f\uff0c\u80fd\u591f\u6709\u6548\u7a7f\u900f\u690d\u88ab\uff0c\u9002\u7528\u4e8e\u519c\u4e1a\u73af\u5883\u4e2d\u7684\u4fe1\u53f7\u4f20\u64ad\u548c\u5f3a\u5ea6\u5206\u5e03\u7279\u6027\u7814\u7a76\u3002\u8fd9\u79cd\u7279\u6027\u4f7f\u5f97LoRa\u975e\u5e38\u9002\u5408\u7528\u4e8e\u8461\u8404\u56ed\u3001\u852c\u83dc\u56ed\u3001\u67d1\u6a58\u56ed\u7b49\u519c\u4e1a\u573a\u666f\u4e2d\u7684\u4f5c\u7269\u751f\u957f\u76d1\u6d4b\u3002\u901a\u8fc7\u65e0\u7ebf\u4f20\u611f\u5668\u7f51\u7edc(WSN)\uff0cLoRa\u53ef\u4ee5\u5b9e\u73b0\u5bf9\u4f5c\u7269\u751f\u957f\u73af\u5883\u7684\u8fdc\u7a0b\u76d1\u6d4b\uff0c\u4e3a\u519c\u4e1a\u7269\u8054\u7f51\u63d0\u4f9b\u4e86\u53ef\u9760\u7684\u6570\u636e\u4f20\u8f93\u65b9\u5f0f\u3002\u6b64\u5916\uff0cLoRa\u6280\u672f\u8fd8\u88ab\u7528\u4e8e\u6784\u5efa\u667a\u80fd\u519c\u4e1a\u7ba1\u7406\u4e0e\u76d1\u6d4b\u7cfb\u7edf\uff0c\u901a\u8fc7\u65e0\u7ebf\u4f20\u611f\u5668\u7f51\u7edc\u5b9e\u73b0\u5bf9\u4f5c\u7269\u751f\u957f\u73af\u5883\u7684\u5b9e\u65f6\u76d1\u6d4b\u548c\u7ba1\u7406\u3002<\/p>\n\n\n\n

      \u3000\u3000LoRa\u6280\u672f\u5728\u73af\u5883\u76d1\u6d4b\u65b9\u9762\u4e5f\u8868\u73b0\u4f18\u5f02\u3002\u4f8b\u5982\uff0c\u5728\u732a\u820d\u73af\u5883\u76d1\u6d4b\u7cfb\u7edf\u4e2d\uff0cLoRa\u6280\u672f\u88ab\u7528\u4e8e\u5206\u5e03\u5f0f\u73af\u5883\u76d1\u6d4b\uff0c\u5b9e\u73b0\u5927\u8303\u56f4\u3001\u5168\u5929\u5019\u7684\u5b9e\u65f6\u73af\u5883\u76d1\u6d4b\u3002\u8be5\u7cfb\u7edf\u5229\u7528LoRa\u6280\u672f\u7684\u4f4e\u529f\u8017\u548c\u4f4e\u6210\u672c\u7279\u70b9\uff0c\u80fd\u591f\u901a\u8fc7\u4f20\u611f\u5668\u8fdc\u7a0b\u5feb\u901f\u5b8c\u6210\u4e4b\u524d\u9700\u8981\u591a\u4eba\u4e00\u5929\u624d\u80fd\u5b9e\u73b0\u7684\u5de5\u4f5c\u91cf\u3002\u6b64\u5916\uff0cLoRa\u6280\u672f\u8fd8\u88ab\u5e94\u7528\u4e8e\u571f\u58e4\u6e7f\u5ea6\u76d1\u6d4b\u548c\u4eba\u8138\u68c0\u6d4b\u7b49\u573a\u666f\uff0c\u5c55\u793a\u4e86\u5176\u5728\u73af\u5883\u76d1\u6d4b\u4e2d\u7684\u5e7f\u6cdb\u5e94\u7528\u524d\u666f\u3002<\/p>\n\n\n\n

      \u3000\u3000LoRa\u6280\u672f\u5728\u7cbe\u51c6\u519c\u4e1a\u4e2d\u7684\u5e94\u7528\u4e5f\u5f97\u5230\u4e86\u5e7f\u6cdb\u7814\u7a76\u548c\u5b9e\u8df5\u3002\u4f8b\u5982\uff0c\u6709\u7814\u7a76\u63a2\u8ba8\u4e86LoRa\u6280\u672f\u5728\u6e29\u5ba4\u3001\u679c\u56ed\u548c\u8461\u8404\u56ed\u7b49\u73af\u5883\u4e2d\u7684\u4f20\u611f\u5668\u76d1\u6d4b\uff0c\u91cd\u70b9\u8ba8\u8bba\u4e86\u4f18\u5316\u65e0\u7ebf\u901a\u4fe1\u53c2\u6570\u4ee5\u786e\u4fdd\u4e0e\u7535\u6c60\u4f9b\u7535\u8282\u70b9\u7684\u53ef\u9760\u901a\u4fe1\u4e14\u80fd\u8017\u6700\u5c0f\u3002\u8fd9\u4e9b\u7814\u7a76\u8868\u660e\uff0cLoRa\u6280\u672f\u56e0\u5176\u4f4e\u529f\u8017\u548c\u957f\u8ddd\u79bb\u901a\u4fe1\u80fd\u529b\u800c\u6210\u4e3a\u7cbe\u51c6\u519c\u4e1a\u4e2d\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002<\/p>\n\n\n\n

      \u3000\u3000LoRa\u6280\u672f\u5728\u519c\u4e1a\u7269\u8054\u7f51\u548c\u73af\u5883\u76d1\u6d4b\u7b49\u5e94\u7528\u573a\u666f\u4e2d\u5c55\u73b0\u4e86\u5176\u4f4e\u529f\u8017\u3001\u957f\u8ddd\u79bb\u3001\u4f4e\u6210\u672c\u548c\u9ad8\u53ef\u9760\u6027\u7684\u4f18\u52bf\u3002<\/p>\n\n\n\n

      \u3000\u3000\u4e94\u3001 \u5982\u4f55\u4f18\u5316LoRa\u65e0\u7ebf\u901a\u4fe1\u6280\u672f\u4ee5\u63d0\u9ad8\u4f20\u8f93\u8ddd\u79bb?<\/h2>\n\n\n\n

      \u3000\u3000\u4e3a\u4e86\u4f18\u5316LoRa\u65e0\u7ebf\u901a\u4fe1\u6280\u672f\u4ee5\u63d0\u9ad8\u5176\u5728\u5f00\u9614\u5e73\u539f\u548c\u6d77\u6d0b\u7b49\u73af\u5883\u4e2d\u7684\u4f20\u8f93\u8ddd\u79bb\uff0c\u53ef\u4ee5\u91c7\u53d6\u4ee5\u4e0b\u63aa\u65bd\uff1a<\/p>\n\n\n\n

        \n
      • \u3000\u3000\u63d0\u9ad8\u53d1\u5c04\u529f\u7387<\/strong>\uff1a\u589e\u52a0LoRa\u7f51\u5173\u7684\u53d1\u5c04\u529f\u7387\u53ef\u4ee5\u663e\u8457\u5ef6\u957f\u901a\u4fe1\u8ddd\u79bb\u3002\u4f8b\u5982\uff0c\u5c06\u53d1\u5c04\u529f\u7387\u4ece13 dBm\u63d0\u9ad8\u523019 dBm\uff0c\u53ef\u4ee5\u4f7f\u901a\u4fe1\u8ddd\u79bb\u5ef6\u957f\u5230\u539f\u6765\u7684\u4e24\u500d\u3002<\/li>\n\n\n\n
      • \u3000\u3000\u589e\u52a0\u5929\u7ebf\u589e\u76ca<\/strong>\uff1a\u63d0\u9ad8\u53d1\u5c04\u5929\u7ebf\u548c\u63a5\u6536\u5929\u7ebf\u7684\u589e\u76ca\u4e5f\u662f\u6709\u6548\u7684\u65b9\u6cd5\u3002\u4f8b\u5982\uff0c\u5c06\u53d1\u5c04\u5929\u7ebf\u589e\u76ca\u4ece3 dBi\u63d0\u9ad8\u52309 dBi\uff0c\u6216\u8005\u5c06\u63a5\u6536\u5929\u7ebf\u589e\u76ca\u4ece1.5 dBi\u63d0\u9ad8\u52307.5 dBi\uff0c\u90fd\u53ef\u4ee5\u4f7f\u901a\u4fe1\u8ddd\u79bb\u5ef6\u957f\u5230\u539f\u6765\u7684\u4e24\u500d\u3002<\/li>\n\n\n\n
      • \u3000\u3000\u964d\u4f4e\u9988\u7ebf\u63d2\u635f<\/strong>\uff1a\u901a\u8fc7\u4f18\u5316\u5c04\u9891\u5370\u5236\u677f\u548c\u9988\u7ebf\u7684\u963b\u6297\u5339\u914d\u3001\u9009\u7528\u4f18\u8d28\u5c04\u9891\u8fde\u63a5\u5934\u5e76\u8fdb\u884c\u9632\u6c34\u5904\u7406\u3001\u5c3d\u53ef\u80fd\u7f29\u77ed\u9988\u7ebf\u957f\u5ea6\u4ee5\u53ca\u9009\u7528\u635f\u8017\u66f4\u4f4e\u7684\u9988\u7ebf\u6750\u6599\uff0c\u53ef\u4ee5\u6709\u6548\u964d\u4f4e\u9988\u7ebf\u63d2\u635f\uff0c\u4ece\u800c\u589e\u52a0\u4f20\u8f93\u8ddd\u79bb\u3002<\/li>\n\n\n\n
      • \u3000\u3000\u964d\u4f4e\u7a7a\u4e2d\u4f20\u64ad\u635f\u8017<\/strong>\uff1a\u901a\u8fc7\u9009\u62e9\u9ad8\u70b9\u67b6\u8bbeLoRa\u7f51\u5173\uff0c\u5e76\u786e\u4fdd\u5929\u7ebf\u4e0e\u5730\u9762\u5782\u76f4\u4e14\u5468\u56f4\u65e0\u906e\u6321\uff0c\u53ef\u4ee5\u51cf\u5c11\u7a7a\u4e2d\u4f20\u64ad\u635f\u8017\uff0c\u4ece\u800c\u589e\u52a0\u901a\u4fe1\u8ddd\u79bb\u3002<\/li>\n\n\n\n
      • \u3000\u3000\u964d\u4f4e\u8f7d\u6ce2\u9891\u7387<\/strong>\uff1a\u964d\u4f4e\u8f7d\u6ce2\u9891\u7387(\u5373\u51cf\u5c0ff\u7684\u4ee3\u6570\u503c)\u4e5f\u53ef\u4ee5\u6709\u6548\u589e\u52a0\u901a\u4fe1\u8ddd\u79bb\u3002<\/li>\n\n\n\n
      • \u3000\u3000\u4f7f\u7528\u6269\u9891\u6280\u672f<\/strong>\uff1a\u5728\u6d77\u6d0b\u73af\u5883\u4e2d\uff0c\u7531\u4e8e\u65e0\u6cd5\u8bbe\u7f6e\u4e2d\u7ee7\u7ad9\u8f6c\u53d1\u6570\u636e\uff0c\u6269\u9891\u6280\u672f\u53ef\u4ee5\u589e\u5f3aLoRa\u7684\u6297\u566a\u58f0\u80fd\u529b\uff0c\u4ece\u800c\u5b9e\u73b0\u66f4\u8fdc\u8ddd\u79bb\u7684\u4f20\u8f93\u3002<\/li>\n\n\n\n
      • \u3000\u3000\u8c03\u6574\u4f20\u64ad\u56e0\u5b50\uff08SF\uff09\u548c\u5e26\u5bbd\uff08BW\uff09<\/strong> \uff1a\u5728\u70ed\u5e26\u6c14\u5019\u73af\u5883\u4e0b\uff0c\u9ad8\u5e26\u5bbd\u548c\u9ad8SF\u6709\u52a9\u4e8e\u4fe1\u53f7\u5728\u66f4\u8fdc\u8ddd\u79bb\u4e0a\u4f20\u64ad\uff0c\u5c3d\u7ba1\u8fd9\u53ef\u80fd\u4f1a\u727a\u7272\u6bd4\u7279\u7387\u3002\u5b9e\u9a8c\u8868\u660e\uff0c\u5728LOS\u8def\u5f84\u6761\u4ef6\u4e0b\uff0c\u4f7f\u7528\u4f4e\u6210\u672c\u6a61\u80f6\u9e2d\u5929\u7ebf\uff0c\u5728\u4e24\u4e2aISM\u9891\u6bb5\u4e0a\u81f3\u5c1122\u516c\u91cc\u7684\u8ddd\u79bb\u5185\u662f\u53ef\u884c\u7684\u3002<\/li>\n\n\n\n
      • \u3000\u3000\u4f18\u5316\u7f51\u7edc\u67b6\u6784<\/strong>\uff1a\u91c7\u7528\u57fa\u4e8e\u5fae\u63a7\u5236\u5668\u7684LoRa RFM95\u4e2d\u7ee7\u5668\u53ef\u4ee5\u589e\u5f3a\u4fe1\u53f7\u8986\u76d6\u8303\u56f4\uff0c\u5e76\u901a\u8fc7\u7f51\u7edc\u62d3\u6251\u7ed3\u6784\u8bbe\u8ba1\u5b9e\u73b0\u7ec8\u7aef\u8bbe\u5907\u4e0e\u7f51\u5173\u4e4b\u95f4\u7684\u9ad8\u6548\u901a\u4fe1\u3002<\/li>\n\n\n\n
      • \u3000\u3000\u5b9a\u5236\u901a\u4fe1\u534f\u8bae<\/strong>\uff1a\u4f7f\u7528\u5b9a\u5236\u7684\u901a\u4fe1\u683c\u5f0f\u548c\u5faa\u73af\u5197\u4f59\u6821\u9a8c(CRC)\u786e\u8ba4\u547d\u4ee4\u6b63\u786e\u6027\uff0c\u53ef\u4ee5\u5728\u51cf\u5c11\u4f20\u8f93\u91cf\u7684\u540c\u65f6\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u7684\u53ef\u9760\u6027\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

        LoRa\u65e0\u7ebf\u901a\u4fe1\u6280\u672f\u4ee5\u5176\u8d85\u957f\u7684\u4f20\u8f93\u8ddd\u79bb\u800c\u95fb\u540d\uff0c\u5177\u4f53\u901a\u4fe1\u8ddd\u79bb\u4f1a\u56e0\u73af\u5883\u548c\u6761\u4ef6\u7684\u4e0d\u540c\u800c\u6709\u6240\u53d8\u5316\u3002\u5728\u57ce\u9547\u73af\u5883\u4e2d\uff0cLoRa\u7684\u4f20\u8f93\u8ddd\u79bb\u901a\u5e38\u57282\u52305\u516c\u91cc\u4e4b\u95f4<\/p>\n","protected":false},"author":1,"featured_media":97633,"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":[462,52],"class_list":["post-99224","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-lora","tag-wxtx"],"_links":{"self":[{"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/posts\/99224","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=99224"}],"version-history":[{"count":0,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/posts\/99224\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/media\/97633"}],"wp:attachment":[{"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/media?parent=99224"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/categories?post=99224"},{"taxonomy":"post_tag","embeddable":true,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/tags?post=99224"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}