{"id":91516,"date":"2024-04-17T15:53:07","date_gmt":"2024-04-17T07:53:07","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=91516"},"modified":"2024-04-17T15:53:12","modified_gmt":"2024-04-17T07:53:12","slug":"lkyzrypzm","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/91516.html","title":{"rendered":"LORA\u53ef\u4ee5\u505a\u5197\u4f59\u914d\u7f6e\u5417"},"content":{"rendered":"\n<p>\u3000\u3000<strong>\u662f\u7684\uff0cLoRa\u6280\u672f\u53ef\u4ee5\u901a\u8fc7\u5197\u4f59\u914d\u7f6e\u6765\u63d0\u9ad8\u901a\u4fe1\u7684\u53ef\u9760\u6027\u548c\u8986\u76d6\u8303\u56f4\u3002<\/strong>\u5197\u4f59\u914d\u7f6e\u901a\u5e38\u5305\u62ec\u4ee5\u4e0b\u51e0\u79cd\u65b9\u5f0f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u91cd\u590d\u53d1\u9001(Repetition)<\/strong>\uff1a\u53d1\u9001\u76f8\u540c\u7684\u6570\u636e\u5305\u591a\u6b21\uff0c\u4ee5\u589e\u52a0\u6570\u636e\u5305\u88ab\u63a5\u6536\u5230\u7684\u6982\u7387\u3002\u63a5\u6536\u7aef\u53ef\u4ee5\u901a\u8fc7\u591a\u6b21\u63a5\u6536\u5230\u76f8\u540c\u6570\u636e\u5305\u6765\u8fdb\u884c\u6570\u636e\u5305\u7684\u6821\u9a8c\u548c\u91cd\u7ec4\uff0c\u4ece\u800c\u63d0\u9ad8\u901a\u4fe1\u7684\u53ef\u9760\u6027\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u591a\u901a\u9053\u53d1\u9001(Multi-channel transmission)<\/strong>\uff1a\u5728\u4e0d\u540c\u7684\u9891\u7387\u6216\u901a\u9053\u4e0a\u53d1\u9001\u76f8\u540c\u7684\u6570\u636e\u5305\uff0c\u4ee5\u589e\u52a0\u6570\u636e\u5305\u88ab\u63a5\u6536\u5230\u7684\u6982\u7387\u3002\u8fd9\u79cd\u65b9\u5f0f\u53ef\u4ee5\u63d0\u9ad8\u5728\u4e0d\u540c\u73af\u5883\u4e0b\u7684\u901a\u4fe1\u8986\u76d6\u8303\u56f4\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u591a\u8def\u5f84\u4f20\u8f93(Multi-path transmission)<\/strong>\uff1a\u901a\u8fc7\u5728\u4e0d\u540c\u7684\u4f20\u8f93\u8def\u5f84\u4e0a\u4f20\u8f93\u76f8\u540c\u7684\u6570\u636e\u5305\uff0c\u4ee5\u589e\u52a0\u6570\u636e\u5305\u88ab\u63a5\u6536\u5230\u7684\u6982\u7387\u3002\u8fd9\u79cd\u65b9\u5f0f\u53ef\u4ee5\u5e94\u5bf9\u4fe1\u53f7\u88ab\u969c\u788d\u7269\u963b\u6321\u6216\u8870\u51cf\u7684\u60c5\u51b5\uff0c\u63d0\u9ad8\u901a\u4fe1\u7684\u53ef\u9760\u6027\u548c\u8986\u76d6\u8303\u56f4\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000\u8fd9\u4e9b\u5197\u4f59\u914d\u7f6e\u65b9\u5f0f\u53ef\u4ee5\u7ed3\u5408\u4f7f\u7528\uff0c\u4ee5\u5e94\u5bf9\u4e0d\u540c\u7684\u901a\u4fe1\u73af\u5883\u548c\u8981\u6c42\uff0c\u63d0\u9ad8LoRa\u6280\u672f\u5728\u7269\u8054\u7f51\u5e94\u7528\u4e2d\u7684\u53ef\u9760\u6027\u548c\u8986\u76d6\u8303\u56f4\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e00\u3001 LoRa\u6280\u672f\u4e2d\u524d\u5411\u7ea0\u9519\u7f16\u7801\u7684\u5177\u4f53\u5b9e\u73b0\u65b9\u5f0f\u662f\u4ec0\u4e48?<\/h2>\n\n\n\n<p>\u3000\u3000LoRa\u6280\u672f\u4e2d\u524d\u5411\u7ea0\u9519\u7f16\u7801(FEC)\u7684\u5177\u4f53\u5b9e\u73b0\u65b9\u5f0f\u4e3b\u8981\u901a\u8fc7\u5728\u539f\u59cb\u6570\u636e\u4e2d\u6dfb\u52a0\u5197\u4f59\u7f16\u7801\u6765\u5b9e\u73b0\u3002\u8fd9\u79cd\u5197\u4f59\u7f16\u7801\u662f\u6309\u7167\u4e00\u5b9a\u7684\u7b97\u6cd5\u9644\u52a0\u7684\u989d\u5916\u6821\u9a8c\u7801\uff0c\u76ee\u7684\u662f\u4e3a\u4e86\u68c0\u6d4b\u5e76\u7ea0\u6b63\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u4ea7\u751f\u7684\u9519\u8bef\uff0c\u4ece\u800c\u63d0\u9ad8\u6570\u636e\u7684\u4f20\u8f93\u53ef\u9760\u6027\u3002\u5177\u4f53\u5230LoRa\u6280\u672f\uff0c\u5b83\u91c7\u7528\u4e86\u5faa\u73af\u7ea0\u9519\u7f16\u7801(Cyclic Error Correction, CEC)\u6765\u6267\u884c\u524d\u5411\u8bef\u5dee\u68c0\u67e5\u548c\u6821\u6b63\u3002\u5faa\u73af\u7ea0\u9519\u7f16\u7801\u662f\u4e00\u79cd\u7279\u5b9a\u7684\u524d\u5411\u7ea0\u9519\u7f16\u7801\u6280\u672f\uff0c\u5b83\u901a\u8fc7\u5728\u7f16\u7801\u8fc7\u7a0b\u4e2d\u5f15\u5165\u5197\u4f59\u4f4d\u6765\u5b9e\u73b0\u9519\u8bef\u68c0\u6d4b\u4e0e\u7ea0\u9519\u529f\u80fd\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u5728LoRa\u901a\u4fe1\u4e2d\uff0c\u7f16\u7801\u7387\u901a\u5e38\u4ee5k\/n\u7684\u5f62\u5f0f\u8868\u793a\uff0c\u5176\u4e2dk\u4ee3\u8868\u6709\u7528\u4fe1\u606f\u7684\u4f4d\u6570\uff0cn\u4ee3\u8868\u7f16\u7801\u5668\u4ea7\u751f\u7684\u603b\u4f4d\u6570\u3002\u8fd9\u79cd\u65b9\u5f0f\u610f\u5473\u7740\u6bcf\u6b21\u4f20\u8f93\u90fd\u4f1a\u4ea7\u751f\u4e00\u5b9a\u7684\u6570\u636e\u5f00\u9500\uff0c\u4f46\u6b63\u662f\u8fd9\u79cd\u5f00\u9500\u4f7f\u5f97LoRa\u80fd\u591f\u5728\u9762\u5bf9\u591a\u5f84\u8870\u843d\u7b49\u5e72\u6270\u65f6\uff0c\u6709\u6548\u5730\u62b5\u6297\u9519\u8bef\uff0c\u4fdd\u8bc1\u4e86\u901a\u4fe1\u7684\u53ef\u9760\u6027\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u6b64\u5916\uff0cLoRa\u89e3\u8c03\u94fe\u8def\u4e2d\u8fd8\u4f7f\u7528\u4e86\u8f6f\u89e3\u7801\u5668\u914d\u5408FEC\u7f16\u7801\u7279\u70b9\uff0c\u901a\u8fc7\u4e0e\u539f\u6709\u6269\u9891\u5e8f\u5217\u590d\u5171\u8f6d\u5377\u79ef\u7684\u65b9\u5f0f\uff0c\u5b9e\u73b0\u6ee4\u9664\u975e\u76f8\u5e72\u7684\u5e72\u6270\u4fe1\u53f7\uff0c\u8fdb\u4e00\u6b65\u589e\u5f3a\u4e86\u7ea0\u9519\u80fd\u529b\u3002\u8fd9\u8868\u660eLoRa\u6280\u672f\u4e2d\u7684FEC\u4e0d\u4ec5\u4f9d\u8d56\u4e8e\u5faa\u73af\u7ea0\u9519\u7f16\u7801\u7684\u57fa\u672c\u539f\u7406\uff0c\u8fd8\u7ed3\u5408\u4e86\u8f6f\u89e3\u7801\u6280\u672f\u548c\u7279\u5b9a\u7684\u6570\u636e\u5904\u7406\u65b9\u6cd5\uff0c\u4ee5\u8fbe\u5230\u6700\u4f73\u7684\u7ea0\u9519\u6548\u679c\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e8c\u3001 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class=\"wp-block-heading\">\u3000\u3000\u4e09\u3001 \u5728LoRa\u7f51\u7edc\u4e2d\uff0c\u5982\u4f55\u6709\u6548\u62b5\u6297\u591a\u5f84\u8870\u843d\u4ee5\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u53ef\u9760\u6027?<\/h2>\n\n\n\n<p>\u3000\u3000\u5728LoRa\u7f51\u7edc\u4e2d\uff0c\u6709\u6548\u62b5\u6297\u591a\u5f84\u8870\u843d\u4ee5\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u53ef\u9760\u6027\u7684\u65b9\u6cd5\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u51e0\u70b9\uff1a<\/p>\n\n\n\n<ul 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