{"id":98645,"date":"2024-10-30T15:11:47","date_gmt":"2024-10-30T07:11:47","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=98645"},"modified":"2024-10-30T15:11:50","modified_gmt":"2024-10-30T07:11:50","slug":"ltzhczctm","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/98645.html","title":{"rendered":"LoRa\u8c03\u5236\u4f1a\u5b58\u5728\u51b2\u7a81\u5417"},"content":{"rendered":"\n

\u3000\u3000LoRa\u8c03\u5236<\/a><\/strong>\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u786e\u5b9e\u5b58\u5728\u51b2\u7a81\u7684\u53ef\u80fd\u6027\uff0c\u4f46\u901a\u8fc7\u591a\u79cd\u6280\u672f\u548c\u65b9\u6cd5\u53ef\u4ee5\u6709\u6548\u5904\u7406\u8fd9\u4e9b\u51b2\u7a81\u3002LoRa\u6280\u672f\u91c7\u7528\u4e86\u6269\u9891\u8c03\u5236\u6280\u672f\uff0c\u5982Chirp Spread Spectrum (CSS)\uff0c\u8fd9\u79cd\u6280\u672f\u901a\u8fc7\u5c06\u4fe1\u53f7\u6269\u5c55\u5230\u66f4\u5bbd\u7684\u9891\u5e26\u6765\u63d0\u9ad8\u6297\u5e72\u6270\u80fd\u529b\u3002\u6b64\u5916\uff0cLoRa\u8c03\u5236\u89e3\u8c03\u5668\u5177\u6709\u5f3a\u5927\u7684\u6297\u5e72\u6270\u80fd\u529b\uff0c\u5bf9\u540c\u4fe1\u9053GMSK\u5e72\u6270\u7684\u6291\u5236\u80fd\u529b\u53ef\u8fbe19.5dB\u81f320dB\u3002<\/p>\n\n\n\n

\u3000\u3000\u5728\u5904\u7406\u51b2\u7a81\u65b9\u9762\uff0cLoRa\u91c7\u7528\u4e86\u5e76\u53d1\u5e72\u6270\u6d88\u9664(CIC)\u6280\u672f\uff0c\u8fd9\u79cd\u6280\u672f\u80fd\u591f\u540c\u65f6\u89e3\u7801\u591a\u4e2a\u76f8\u4e92\u51b2\u7a81\u7684LoRa\u6570\u636e\u5305\uff0c\u4ece\u800c\u663e\u8457\u63d0\u5347\u7f51\u7edc\u5bb9\u91cf\u548c\u541e\u5410\u91cf\u3002\u6b64\u5916\uff0cLoRa\u8fd8\u91c7\u7528\u4e86\u6b63\u4ea4\u9891\u5206\u590d\u7528\u6280\u672f\uff0c\u786e\u4fdd\u5728\u540c\u4e00\u4fe1\u9053\u9891\u7387\u548c\u540c\u4e00\u65f6\u9699\u4f20\u8f93\u591a\u4e2aLoRa\u4fe1\u53f7\u4e0d\u4f1a\u53d1\u751f\u78b0\u649e\u3002<\/p>\n\n\n\n

\u3000\u3000\u5c3d\u7ba1LoRa\u6280\u672f\u5177\u6709\u5f3a\u5927\u7684\u6297\u5e72\u6270\u80fd\u529b\uff0c\u4f46\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u4ecd\u53ef\u80fd\u53d7\u5230\u591a\u79cd\u56e0\u7d20\u7684\u5f71\u54cd\uff0c\u5982\u73af\u5883\u3001\u5929\u7ebf\u3001\u524d\u5e72\u6270\u6e90\u3001\u7528\u6237\u53c2\u6570\u8bbe\u7f6e\u3001\u540c\u9891\u5e72\u6270\u7b49\u3002\u56e0\u6b64\uff0c\u9700\u8981\u6839\u636e\u4e0d\u540c\u7684\u60c5\u51b5\uff0c\u627e\u51fa\u88ab\u5e72\u6270\u7684\u5177\u4f53\u539f\u56e0\uff0c\u5e76\u91c7\u53d6\u76f8\u5e94\u7684\u89e3\u51b3\u63aa\u65bd\uff0c\u5982\u8c03\u6574\u8bbe\u5907\u4f4d\u7f6e\u548c\u65b9\u5411\u3001\u589e\u52a0\u8bbe\u5907\u529f\u7387\u3001\u4f7f\u7528\u7801\u9694\u79bb\u7b49\u3002<\/p>\n\n\n\n

\u3000\u3000LoRa\u8c03\u5236\u5728\u8bbe\u8ba1\u65f6\u5df2\u7ecf\u8003\u8651\u4e86\u51b2\u7a81\u5904\u7406\u7684\u95ee\u9898\uff0c\u5e76\u901a\u8fc7\u591a\u79cd\u6280\u672f\u548c\u65b9\u6cd5\u6765\u63d0\u9ad8\u5176\u6297\u5e72\u6270\u80fd\u529b\u548c\u7a33\u5b9a\u6027\u3002\u7136\u800c\uff0c\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u4ecd\u9700\u6ce8\u610f\u5404\u79cd\u53ef\u80fd\u7684\u5e72\u6270\u56e0\u7d20\uff0c\u5e76\u91c7\u53d6\u76f8\u5e94\u7684\u63aa\u65bd\u6765\u786e\u4fdd\u6570\u636e\u4f20\u8f93\u7684\u53ef\u9760\u6027\u548c\u6548\u7387\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e00\u3001 LoRa\u8c03\u5236\u6280\u672f\u4e2d\u5e76\u53d1\u5e72\u6270\u6d88\u9664(CIC)\u6280\u672f\u7684\u5177\u4f53\u5de5\u4f5c\u539f\u7406<\/h2>\n\n\n\n

\u3000\u3000\u5e76\u53d1\u5e72\u6270\u6d88\u9664(CIC)\u6280\u672f\u5728LoRa\u8c03\u5236\u6280\u672f\u4e2d\u7684\u5177\u4f53\u5de5\u4f5c\u539f\u7406\u5982\u4e0b\uff1a<\/p>\n\n\n\n

\u3000\u3000CIC\u6280\u672f\u662f\u4e00\u79cd\u65b0\u9896\u7684\u5e72\u6270\u6d88\u9664\u65b9\u6cd5\uff0c\u65e8\u5728\u89e3\u51b3LoRa\u7f51\u7edc\u4e2d\u7531\u4e8e\u591a\u4e2a\u6570\u636e\u5305\u540c\u65f6\u4f20\u8f93\u800c\u4ea7\u751f\u7684\u5305\u51b2\u7a81\u95ee\u9898\u3002\u8fd9\u79cd\u6280\u672f\u80fd\u591f\u540c\u65f6\u89e3\u7801\u591a\u4e2a\u76f8\u4e92\u51b2\u7a81\u7684LoRa\u6570\u636e\u5305\uff0c\u4ece\u800c\u663e\u8457\u63d0\u9ad8\u7f51\u7edc\u7684\u6574\u4f53\u541e\u5410\u91cf\u3002<\/p>\n\n\n\n

\u3000\u3000CIC\u6280\u672f\u7684\u6838\u5fc3\u5728\u4e8e\u901a\u8fc7\u6d88\u9664\u6240\u6709\u5176\u4ed6\u5e72\u6270\u7b26\u53f7\u6765\u89e3\u8c03\u76ee\u6807\u4fe1\u53f7\u3002\u5177\u4f53\u6765\u8bf4\uff0c\u5b83\u91c7\u7528\u5148\u8fdb\u7684\u4fe1\u53f7\u5904\u7406\u7b97\u6cd5\uff0c\u5bf9\u591a\u4e2a\u78b0\u649e\u7684\u6570\u636e\u5305\u8fdb\u884c\u5e76\u53d1\u89e3\u7801\u3002\u8fd9\u79cd\u65b9\u6cd5\u4e0e\u4f20\u7edf\u7684\u9010\u4e2a\u89e3\u7801\u65b9\u6cd5\u4e0d\u540c\uff0c\u56e0\u4e3a\u5b83\u80fd\u591f\u5728\u540c\u4e00\u65f6\u95f4\u5904\u7406\u591a\u4e2a\u6570\u636e\u5305\uff0c\u4ece\u800c\u51cf\u5c11\u4e86\u56e0\u5305\u51b2\u7a81\u5bfc\u81f4\u7684\u901a\u4fe1\u4e2d\u65ad\u3002<\/p>\n\n\n\n

\u3000\u3000\u6b64\u5916\uff0cCIC\u6280\u672f\u8fd8\u5229\u7528\u4e86\u5df2\u77e5\u7684\u5bfc\u9891\u6216\u8bad\u7ec3\u7b26\u53f7\u6765\u786e\u5b9a\u4fe1\u9053\u6548\u5e94\uff0c\u5e76\u751f\u6210\u4fe1\u53f7\u4f30\u8ba1\u503c\u3002\u8fd9\u4e9b\u4f30\u8ba1\u503c\u7528\u4e8e\u51cf\u6cd5\u64cd\u4f5c\uff0c\u4ee5\u6d88\u9664\u5e72\u6270\u4fe1\u53f7\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0cCIC\u7684\u7b2c\u4e00\u7ea7\u4f1a\u6d88\u9664\u6700\u5f3a\u4fe1\u53f7\uff0c\u4ece\u800c\u89e3\u51b3\u4e86\u8fd1\u8fdc\u95ee\u9898\uff0c\u5e76\u5229\u7528\u4e86\u6700\u5f3a\u4fe1\u53f7\u7684\u4f18\u8d8a\u53ef\u68c0\u6d4b\u6027\u3002\u968f\u540e\uff0c\u5dee\u5206\u4fe1\u53f7\u88ab\u5e94\u7528\u4e8e\u7b2c\u4e8c\u5f3a\u7684\u63a5\u6536\u4fe1\u53f7\u7b49\uff0c\u968f\u7740\u4fe1\u53f7\u4ece\u6700\u5f3a\u5230\u6700\u5f31\uff0c\u5e72\u6270\u53bb\u9664\u91cf\u4e5f\u9010\u6e10\u589e\u52a0\u3002<\/p>\n\n\n\n

\u3000\u3000\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0cCIC\u6280\u672f\u9700\u8981\u6240\u6709\u4fe1\u53f7\u7684\u5df2\u77e5\u6269\u5c55\u5e8f\u5217\u548c\u5b9a\u65f6\u4fe1\u606f\uff0c\u4ee5\u786e\u4fdd\u51c6\u786e\u7684\u5e72\u6270\u6d88\u9664\u548c\u7b26\u53f7\u4f30\u8ba1\u3002\u5c3d\u7ba1CIC\u6280\u672f\u5728\u4f4e\u4fe1\u566a\u6bd4\u4e0b\u53ef\u80fd\u4f1a\u53d7\u5230\u53d6\u6d88\u8bef\u5dee\u7684\u5f71\u54cd\uff0c\u4f46\u5176\u6574\u4f53\u6027\u80fd\u4ecd\u7136\u4f18\u4e8e\u4f20\u7edf\u7684\u5e72\u6270\u6d88\u9664\u65b9\u6cd5\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e8c\u3001 \u5982\u4f55\u6709\u6548\u51cf\u5c11LoRa\u4fe1\u53f7\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u7684\u540c\u9891\u5e72\u6270?<\/h2>\n\n\n\n

\u3000\u3000\u8981\u6709\u6548\u51cf\u5c11LoRa\u4fe1\u53f7\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u7684\u540c\u9891\u5e72\u6270\uff0c\u53ef\u4ee5\u91c7\u53d6\u4ee5\u4e0b\u51e0\u79cd\u65b9\u6cd5\uff1a<\/p>\n\n\n\n

    \n
  • \u3000\u3000\u8c03\u6574\u9891\u7387<\/strong>\uff1a\u6700\u7b80\u5355\u7684\u65b9\u6cd5\u662f\u8c03\u6574LoRa\u8282\u70b9\u4e4b\u95f4\u7684\u9891\u7387\u3002\u5982\u679c\u8282\u70b9\u4e4b\u95f4\u7684\u9891\u7387\u4e0d\u540c\uff0c\u90a3\u4e48\u5b83\u4eec\u4e4b\u95f4\u7684\u4fe1\u53f7\u5e72\u6270\u5c31\u4f1a\u51cf\u5c11\uff0c\u4ece\u800c\u63d0\u9ad8LoRa\u7f51\u7edc\u7684\u6027\u80fd\u548c\u53ef\u9760\u6027\u3002<\/li>\n\n\n\n
  • \u3000\u3000\u4f7f\u7528\u7801\u9694\u79bb\u6280\u672f<\/strong>\uff1a\u5728\u591aLoRa\u8bbe\u5907\u73af\u5883\u4e2d\uff0c\u4f7f\u7528\u7801\u9694\u79bb\u6280\u672f\u53ef\u4ee5\u6709\u6548\u51cf\u5c11\u5e72\u6270\u3002\u5177\u4f53\u65b9\u6cd5\u5305\u62ec\u8c03\u6574\u8bbe\u5907\u4f4d\u7f6e\u548c\u65b9\u5411\u4ee5\u53ca\u589e\u52a0\u8bbe\u5907\u529f\u7387\uff0c\u8fd9\u4e9b\u63aa\u65bd\u53ef\u4ee5\u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u589e\u5f3a\u4fe1\u53f7\u5f3a\u5ea6\uff0c\u4ece\u800c\u51cf\u5c11\u5e72\u6270\u7684\u5f71\u54cd\u3002<\/li>\n\n\n\n
  • \u3000\u3000\u8bbe\u8ba1\u534f\u8bae\u4ee5\u907f\u514d\u51b2\u7a81<\/strong>\uff1a\u53ef\u4ee5\u8ba9\u4e0d\u540cLoRa\u8282\u70b9\u53d1\u9001\u4e0d\u540c\u9891\u7387\u7684\u4fe1\u53f7\uff0c\u5e76\u4f7f\u7528LoRa\u7f51\u5173\u540c\u65f6\u63a5\u6536\u8fd9\u4e9b\u4fe1\u53f7\u4ece\u800c\u907f\u514d\u5e72\u6270\u3002\u6b64\u5916\uff0c\u4e5f\u53ef\u4ee5\u8bbe\u8ba1\u534f\u8bae\u4f7f\u5f97\u5de5\u4f5c\u5728\u540c\u4e00\u9891\u70b9\u4e0a\u7684LoRa\u8282\u70b9\u5728\u4e0d\u540c\u65f6\u95f4\u7247\u4e0a\u53d1\u9001\u6570\u636e\u5305\uff0c\u4ece\u800c\u907f\u514d\u51b2\u7a81\u3002<\/li>\n\n\n\n
  • \u3000\u3000\u5229\u7528\u6ce2\u675f\u8d4b\u5f62\u6280\u672f<\/strong>\uff1a\u901a\u8fc7\u5728\u7f51\u5173\u4e0a\u4f7f\u7528\u66f4\u591a\u5929\u7ebf\u5b9e\u73b0\u63a5\u6536\u4fe1\u53f7\u7684\u6ce2\u675f\u8d4b\u5f62\uff0c\u53ef\u4ee5\u533a\u5206\u4e0d\u540c\u7a7a\u95f4\u65b9\u4f4d\u7684\u5230\u8fbe\u4fe1\u53f7\uff0c\u4ece\u800c\u907f\u514d\u4e0d\u540c\u5230\u8fbe\u89d2\u5ea6\u4fe1\u53f7\u4e4b\u95f4\u7684\u5e72\u6270\u5e76\u5b9e\u73b0\u591a\u76ee\u6807\u611f\u77e5\u3002<\/li>\n\n\n\n
  • \u3000\u3000\u4f18\u5316\u8c03\u5236\u53c2\u6570<\/strong>\uff1aLoRa\u8c03\u5236\u89e3\u8c03\u5668\u5177\u6709\u8f83\u9ad8\u7684\u6297\u5e72\u6270\u80fd\u529b\uff0c\u80fd\u591f\u6291\u5236\u9ad8\u8fbe20 dB\u7684\u540c\u4fe1\u9053GMSK\u5e72\u6270\u3002\u901a\u8fc7\u4f18\u5316\u6269\u9891\u56e0\u5b50\u548c\u8bef\u7801\u7387\u7b49\u8bbe\u8ba1\u53d8\u91cf\uff0c\u53ef\u4ee5\u5728\u5360\u7528\u5e26\u5bbd\u3001\u6570\u636e\u901f\u7387\u3001\u94fe\u8def\u9884\u7b97\u6539\u5584\u548c\u6297\u5e72\u6270\u80fd\u529b\u4e4b\u95f4\u627e\u5230\u5e73\u8861\u3002<\/li>\n<\/ul>\n\n\n\n

    \u3000\u3000\u4e09\u3001 LoRa\u6280\u672f\u4e2d\u6b63\u4ea4\u9891\u5206\u590d\u7528\u6280\u672f\u662f\u5982\u4f55\u786e\u4fdd\u4fe1\u53f7\u4e0d\u53d1\u751f\u78b0\u649e\u7684?<\/h2>\n\n\n\n

    \u3000\u3000LoRa\u6280\u672f\u4e2d\u6b63\u4ea4\u9891\u5206\u590d\u7528(OFDM)\u6280\u672f\u786e\u4fdd\u4fe1\u53f7\u4e0d\u53d1\u751f\u78b0\u649e\u7684\u673a\u5236\u4e3b\u8981\u4f9d\u8d56\u4e8e\u5176\u6b63\u4ea4\u8bbe\u8ba1\u548c\u4fe1\u53f7\u5f3a\u5ea6\u5dee\u5f02\u3002LoRa\u4fe1\u53f7\u662f\u6b63\u4ea4\u8bbe\u8ba1\uff0c\u5373\u4e0d\u540c\u6269\u9891\u56e0\u5b50(SF)\u7684\u4fe1\u53f7\u4e92\u4e0d\u5e72\u6270\u3002\u8fd9\u610f\u5473\u7740\u5373\u4f7f\u5728\u76f8\u540c\u7684\u9891\u7387\u4e0a\uff0c\u4e0d\u540cSF\u7684\u4fe1\u53f7\u4e5f\u4e0d\u4f1a\u76f8\u4e92\u5f71\u54cd\uff0c\u4ece\u800c\u51cf\u5c11\u4e86\u78b0\u649e\u7684\u53ef\u80fd\u6027\u3002<\/p>\n\n\n\n

    \u3000\u3000\u6b64\u5916\uff0cLoRa\u82af\u7247\u5177\u6709\u540c\u4fe1\u9053\u6291\u5236\u529f\u80fd(Co-channel Rejection)\uff0c\u5f53\u4e00\u4e2a\u4fe1\u9053\u5185\u540c\u65f6\u8fdb\u5165\u591a\u8def\u6570\u636e\u65f6\uff0c\u82af\u7247\u80fd\u591f\u6b63\u786e\u89e3\u8c03\u5176\u4e2d\u4e00\u8def\u4fe1\u53f7\uff0c\u800c\u6ca1\u6709\u88ab\u89e3\u8c03\u7684\u4fe1\u53f7\u4f1a\u6d88\u5931\u3002\u8fd9\u8fdb\u4e00\u6b65\u63d0\u9ad8\u4e86\u4fe1\u53f7\u7684\u7a33\u5b9a\u6027\u548c\u4f20\u8f93\u6548\u7387\u3002<\/p>\n\n\n\n

    \u3000\u3000\u5728LoRa\u901a\u4fe1\u4e2d\uff0c\u5982\u679c\u4e24\u4e2a\u6570\u636e\u5305\u5728\u65f6\u95f4\u548c\u9891\u7387\u4e0a\u91cd\u53e0\uff0c\u901a\u5e38\u4f1a\u53d1\u751f\u78b0\u649e\uff0c\u5bfc\u81f4\u6570\u636e\u5305\u4e22\u5931\u3002\u7136\u800c\uff0c\u7531\u4e8e\u6355\u83b7\u6548\u5e94\uff0c\u78b0\u649e\u7684\u7ed3\u679c\u53ef\u80fd\u56e0\u4fe1\u53f7\u5f3a\u5ea6\u3001\u65f6\u95f4\u504f\u79fb\u548c\u91cd\u53e0\u6570\u636e\u5305\u7684SF\u800c\u5f02\u3002\u4f8b\u5982\uff0c\u5982\u679c\u6240\u9700\u6570\u636e\u5305\u7684\u6700\u540e\u4e94\u4e2a\u9884\u5bfc\u7b26\u53f7\u4fdd\u6301\u5b8c\u6574\uff0c\u4e14\u63a5\u6536\u5230\u7684\u6570\u636e\u5305\u529f\u7387\u6bd4\u4efb\u4f55\u91cd\u53e0\u6570\u636e\u5305\u7684\u4fe1\u53f7\u5f3a\u5ea6\u9ad8\u51fa\u81f3\u5c116 dB\uff0cLoRa\u6570\u636e\u5305\u53ef\u4ee5\u5728\u78b0\u649e\u4e2d\u751f\u5b58\u3002<\/p>\n\n\n\n

    \u3000\u3000\u56db\u3001 \u5728LoRa\u7f51\u7edc\u4e2d\uff0c\u5982\u4f55\u6839\u636e\u73af\u5883\u548c\u5929\u7ebf\u7279\u6027\u4f18\u5316\u8bbe\u5907\u4f4d\u7f6e\u548c\u65b9\u5411\u4ee5\u63d0\u9ad8\u6297\u5e72\u6270\u80fd\u529b?<\/h2>\n\n\n\n

    \u3000\u3000\u5728LoRa\u7f51\u7edc\u4e2d\uff0c\u4f18\u5316\u8bbe\u5907\u4f4d\u7f6e\u548c\u65b9\u5411\u4ee5\u63d0\u9ad8\u6297\u5e72\u6270\u80fd\u529b\u53ef\u4ee5\u4ece\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\u8fdb\u884c\uff1a<\/p>\n\n\n\n

      \n
    • \u3000\u3000\u5929\u7ebf\u5b89\u88c5\u4f4d\u7f6e<\/strong>\uff1a\u6839\u636e\u8bf4\u660e\u4e66\u7684\u5efa\u8bae\uff0c\u96c6\u4e2d\u5668\u5e94\u5b89\u88c5\u5728\u5efa\u7b51\u7269\u8fb9\u7f18\uff0c\u5e76\u4e0e\u5efa\u7b51\u7269\u5899\u9762\u4fdd\u6301\u81f3\u5c1150\u5398\u7c73\u7684\u95f4\u9699\uff0c\u540c\u65f6\u786e\u4fdd\u81f3\u5c11\u670920\u5ea6\u7684\u4fef\u89d2\u3002\u8fd9\u79cd\u5b89\u88c5\u65b9\u5f0f\u6709\u52a9\u4e8e\u51cf\u5c11\u5efa\u7b51\u7269\u5bf9\u4fe1\u53f7\u7684\u906e\u6321\u548c\u53cd\u5c04\uff0c\u4ece\u800c\u964d\u4f4e\u591a\u5f84\u5e72\u6270\u3002<\/li>\n\n\n\n
    • \u3000\u3000\u5929\u7ebf\u8fdc\u79bb\u5176\u4ed6\u5929\u7ebf<\/strong>\uff1a\u4e3a\u4e86\u51cf\u5c11\u5929\u7ebf\u95f4\u7684\u76f8\u4e92\u8026\u5408\uff0cLoRa\u5168\u5411\u5929\u7ebf\u5e94\u5c3d\u53ef\u80fd\u8fdc\u79bb\u5176\u4ed6\u65e0\u7ebf\u8bbe\u5907\u7684\u5929\u7ebf\u3002\u8fd9\u53ef\u4ee5\u907f\u514d\u4e0d\u540c\u5929\u7ebf\u4e4b\u95f4\u4ea7\u751f\u7684\u5e72\u6270\u4fe1\u53f7\uff0c\u63d0\u9ad8\u901a\u4fe1\u8d28\u91cf\u3002<\/li>\n\n\n\n
    • \u3000\u3000\u5929\u7ebf\u671d\u5411<\/strong>\uff1a\u5929\u7ebf\u5e94\u5782\u76f4\u6307\u5411\u5730\u9762\uff0c\u8fd9\u6837\u53ef\u4ee5\u83b7\u5f97\u6700\u4f73\u6027\u80fd\u3002\u6b64\u5916\uff0c\u5408\u7406\u5e03\u7f6e\u589e\u76ca\u5929\u7ebf\u7684\u4f4d\u7f6e\u548c\u671d\u5411\uff0c\u53ef\u4ee5\u51cf\u5c11\u591a\u5f84\u5e72\u6270\u548c\u7535\u78c1\u5c4f\u853d\u6548\u5e94\u3002<\/li>\n\n\n\n
    • \u3000\u3000\u9632\u96f7\u4fdd\u62a4\u63aa\u65bd<\/strong>\uff1a\u4e3a\u7f51\u5173\u8bbe\u5907\u53ca\u5176\u5929\u7ebf\u5b9e\u65bd\u9632\u96f7\u63aa\u65bd\uff0c\u5982\u4f7f\u7528\u6d6a\u6d8c\u4fdd\u62a4\u5668\u6216\u907f\u96f7\u5668\uff0c\u5e76\u786e\u4fdd\u5929\u7ebf\u548c\u9988\u7ebf\u63a5\u5730\u3002\u8fd9\u6709\u52a9\u4e8e\u9632\u6b62\u96f7\u51fb\u5bf9\u8bbe\u5907\u9020\u6210\u635f\u5bb3\uff0c\u4ece\u800c\u63d0\u9ad8\u7cfb\u7edf\u7684\u7a33\u5b9a\u6027\u3002<\/li>\n\n\n\n
    • \u3000\u3000\u9009\u62e9\u5408\u9002\u7684\u5929\u7ebf\u7c7b\u578b<\/strong>\uff1a\u7ecf\u5178\u6746\u5f62\u5929\u7ebf\u5c06\u80fd\u91cf\u96c6\u4e2d\u5728\u6c34\u5e73\u9762\u4e2d\uff0c\u9002\u7528\u4e8e\u9700\u8981\u8986\u76d6\u8f83\u5bbd\u533a\u57df\u7684\u5e94\u7528\u573a\u666f\u3002\u9009\u62e9\u5408\u9002\u7684\u5929\u7ebf\u7c7b\u578b\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u73af\u5883\u9700\u6c42\u6765\u4f18\u5316\u4fe1\u53f7\u4f20\u8f93\u6548\u679c\u3002<\/li>\n<\/ul>\n\n\n\n

      \u3000\u3000\u4e94\u3001 LoRa\u8c03\u5236\u89e3\u8c03\u5668\u5bf9\u540c\u4fe1\u9053GMSK\u5e72\u6270\u7684\u6291\u5236\u80fd\u529b\u662f\u5982\u4f55\u5b9e\u73b0\u7684?<\/h2>\n\n\n\n

      \u3000\u3000LoRa\u8c03\u5236\u89e3\u8c03\u5668\u5bf9\u540c\u4fe1\u9053GMSK\u5e72\u6270\u7684\u6291\u5236\u80fd\u529b\u4e3b\u8981\u901a\u8fc7\u6269\u9891\u8c03\u5236\u548c\u524d\u5411\u7ea0\u9519\u6280\u672f\u5b9e\u73b0\u3002LoRa\u8c03\u5236\u89e3\u8c03\u5668\u80fd\u591f\u6291\u5236\u9ad8\u8fbe19.5dB\u81f320dB\u7684\u540c\u4fe1\u9053GMSK\u5e72\u6270\u3002\u8fd9\u79cd\u5f3a\u5927\u7684\u6297\u5e72\u6270\u6027\u80fd\u610f\u5473\u7740LoRa\u8c03\u5236\u89e3\u8c03\u5668\u53ef\u4ee5\u63a5\u53d7\u4f4e\u4e8e\u5e72\u6270\u4fe1\u53f7\u6216\u5e95\u566a\u58f0\u7684\u4fe1\u53f719.5dB\u81f320dB\u3002<\/p>\n\n\n\n

      \u3000\u3000\u5177\u4f53\u6765\u8bf4\uff0cLoRa\u8c03\u5236\u89e3\u8c03\u5668\u91c7\u7528\u6269\u9891\u8c03\u5236\u6280\u672f\uff0c\u5c06\u4fe1\u53f7\u5206\u6563\u5728\u66f4\u5bbd\u7684\u9891\u5e26\u4e0a\uff0c\u4ece\u800c\u964d\u4f4e\u4e86\u4fe1\u53f7\u5728\u7279\u5b9a\u9891\u7387\u4e0a\u7684\u529f\u7387\u5bc6\u5ea6\uff0c\u51cf\u5c11\u4e86\u5e72\u6270\u7684\u5f71\u54cd\u3002\u6b64\u5916\uff0cLoRa\u8c03\u5236\u89e3\u8c03\u5668\u8fd8\u4f7f\u7528\u524d\u5411\u7ea0\u9519\u7f16\u7801\u6280\u672f\uff0c\u901a\u8fc7\u5728\u4f20\u8f93\u6570\u636e\u4e2d\u52a0\u5165\u5197\u4f59\u4fe1\u606f\u6765\u68c0\u6d4b\u548c\u7ea0\u6b63\u9519\u8bef\uff0c\u8fdb\u4e00\u6b65\u589e\u5f3a\u4e86\u6297\u5e72\u6270\u80fd\u529b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

      LoRa\u8c03\u5236\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u786e\u5b9e\u5b58\u5728\u51b2\u7a81\u7684\u53ef\u80fd\u6027\uff0c\u4f46\u901a\u8fc7\u591a\u79cd\u6280\u672f\u548c\u65b9\u6cd5\u53ef\u4ee5\u6709\u6548\u5904\u7406\u8fd9\u4e9b\u51b2\u7a81\u3002LoRa\u6280\u672f\u91c7\u7528\u4e86\u6269\u9891\u8c03\u5236\u6280\u672f\uff0c\u5982Chirp Spread Spectrum (CSS)<\/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":[54],"class_list":["post-98645","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-l-2"],"_links":{"self":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/98645","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=98645"}],"version-history":[{"count":0,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/98645\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media\/97633"}],"wp:attachment":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media?parent=98645"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/categories?post=98645"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/tags?post=98645"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}