{"id":100448,"date":"2025-01-15T09:40:41","date_gmt":"2025-01-15T01:40:41","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=100448"},"modified":"2025-01-15T09:40:45","modified_gmt":"2025-01-15T01:40:45","slug":"lxycsdyljs","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/100448.html","title":{"rendered":"LoRa\u534f\u8bae\u4f20\u8f93\u7684\u539f\u7406\u4ecb\u7ecd"},"content":{"rendered":"\n<p>\u3000\u3000<strong>LoRa\u534f\u8bae<\/strong>\u662f\u4e00\u79cd\u4f4e\u529f\u8017\u3001\u957f\u8ddd\u79bb\u7684\u65e0\u7ebf\u901a\u4fe1\u6280\u672f\uff0c\u5176\u4f20\u8f93\u539f\u7406\u4e3b\u8981\u57fa\u4e8e\u6269\u9891\u8c03\u5236\u6280\u672f(Chirp Spread Spectrum, CSS)\u3002\u4ee5\u4e0b\u662fLoRa\u534f\u8bae\u4f20\u8f93\u7684\u8be6\u7ec6\u539f\u7406\u4ecb\u7ecd\uff1a<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u6269\u9891\u8c03\u5236\u6280\u672f<\/strong>\uff1a<\/p>\n\n\n\n<p>\u3000\u3000LoRa\u534f\u8bae\u7684\u6838\u5fc3\u662f\u901a\u8fc7\u6269\u9891\u6280\u672f\u5c06\u6570\u636e\u4fe1\u53f7\u8f6c\u6362\u4e3a\u9ad8\u9891\u4fe1\u53f7\u8fdb\u884c\u4f20\u8f93\u3002\u5177\u4f53\u6765\u8bf4\uff0c\u5b83\u4f7f\u7528\u7ebf\u6027\u9891\u7387\u8c03\u5236(Chirp)\u7684\u65b9\u5f0f\uff0c\u5c06\u4f4e\u901f\u6570\u636e\u6d41\u8f6c\u6362\u4e3a\u9ad8\u901f\u6269\u9891\u4fe1\u53f7\u3002\u8fd9\u79cd\u8c03\u5236\u65b9\u5f0f\u4f7f\u5f97\u4fe1\u53f7\u80fd\u591f\u5728\u66f4\u5bbd\u7684\u9891\u7387\u8303\u56f4\u5185\u4f20\u64ad\uff0c\u4ece\u800c\u63d0\u9ad8\u4e86\u6297\u5e72\u6270\u80fd\u529b\u548c\u901a\u4fe1\u8ddd\u79bb<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u6570\u636e\u7f16\u7801\u4e0e\u8c03\u5236<\/strong>\uff1a<\/p>\n\n\n\n<p>\u3000\u3000\u5728\u53d1\u9001\u7aef\uff0cLoRa\u534f\u8bae\u9996\u5148\u5bf9\u6570\u636e\u8fdb\u884c\u7f16\u7801\u548c\u5904\u7406\u3002\u5177\u4f53\u6b65\u9aa4\u5305\u62ec\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000\u6570\u636e\u5206\u5305\uff1a\u5c06\u539f\u59cb\u6570\u636e\u5206\u6210\u5934\u90e8\u3001\u8d1f\u8f7d\u548c\u5faa\u73af\u5197\u4f59\u6821\u9a8c\u7801(CRC)\u4e09\u90e8\u5206\u3002<\/li>\n\n\n\n<li>\u3000\u3000\u6570\u636e\u7f16\u7801\uff1a\u4f7f\u7528\u6c49\u660e\u7801\u5bf9\u6570\u636e\u8fdb\u884c\u7f16\u7801\uff0c\u4ee5\u63d0\u9ad8\u6570\u636e\u7684\u53ef\u9760\u6027\u3002<\/li>\n\n\n\n<li>\u3000\u3000\u6570\u636e\u53bb\u76f8\u5173\u5316\uff1a\u901a\u8fc7\u767d\u5316\u5904\u7406\u51cf\u5c11\u7b26\u53f7\u95f4\u7684\u76f8\u5173\u6027\uff0c\u589e\u5f3a\u6297\u5e72\u6270\u80fd\u529b\u3002<\/li>\n\n\n\n<li>\u3000\u3000\u6570\u636e\u4ea4\u7ec7\uff1a\u8fdb\u884c\u4ea4\u7ec7\u5904\u7406\u4ee5\u8fdb\u4e00\u6b65\u63d0\u9ad8\u6297\u5e72\u6270\u80fd\u529b\u3002<\/li>\n\n\n\n<li>\u3000\u3000\u6570\u636e\u8c03\u5236\uff1a\u5229\u7528LoRa\u8c03\u5236\u6280\u672f\u5c06\u7070\u5ea6\u5316\u7684\u6570\u636e\u8f6c\u6362\u4e3a\u9002\u5408\u65e0\u7ebf\u4f20\u8f93\u7684\u4fe1\u53f7\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000<strong>\u4fe1\u53f7\u4f20\u8f93<\/strong>\uff1a<\/p>\n\n\n\n<p>\u3000\u3000\u8c03\u5236\u540e\u7684\u4fe1\u53f7\u901a\u8fc7LoRa\u6a21\u5757\u53d1\u9001\u51fa\u53bb\u3002LoRa\u6a21\u5757\u901a\u5e38\u96c6\u6210\u5728\u7ec8\u7aef\u8bbe\u5907\u4e2d\uff0c\u5982\u4f20\u611f\u5668\u8282\u70b9\u6216\u7f51\u5173\u3002\u8fd9\u4e9b\u8bbe\u5907\u901a\u8fc7\u5929\u7ebf\u5c06\u4fe1\u53f7\u53d1\u5c04\u5230\u7a7a\u4e2d\uff0c\u4fe1\u53f7\u53ef\u4ee5\u5728\u8fdc\u8ddd\u79bb\u5185\u4f20\u64ad\uff0c\u5e76\u4e14\u5177\u6709\u8f83\u5f3a\u7684\u7a7f\u900f\u80fd\u529b\uff0c\u9002\u7528\u4e8e\u57ce\u5e02\u548c\u519c\u6751\u73af\u5883<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u63a5\u6536\u4e0e\u89e3\u8c03<\/strong>\uff1a<\/p>\n\n\n\n<p>\u3000\u3000\u63a5\u6536\u7aef\u63a5\u6536\u5230\u4fe1\u53f7\u540e\uff0c\u9700\u8981\u8fdb\u884c\u4e00\u7cfb\u5217\u89e3\u8c03\u6b65\u9aa4\u6765\u6062\u590d\u539f\u59cb\u6570\u636e\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000\u4fe1\u6807\u540c\u6b65\uff1a\u63a5\u6536\u7aef\u9996\u5148\u540c\u6b65\u63a5\u6536\u5230\u7684\u4fe1\u53f7\u5e27\u3002<\/li>\n\n\n\n<li>\u3000\u3000LoRa\u89e3\u8c03\uff1a\u5c06\u6269\u9891\u4fe1\u53f7\u8fd8\u539f\u4e3a\u7070\u5ea6\u5316\u7684\u6570\u636e\u3002<\/li>\n\n\n\n<li>\u3000\u3000\u6570\u636e\u53bb\u4ea4\u7ec7\uff1a\u5bf9\u6570\u636e\u8fdb\u884c\u53bb\u4ea4\u7ec7\u5904\u7406\uff0c\u6062\u590d\u539f\u59cb\u6570\u636e\u6d41\u3002<\/li>\n\n\n\n<li>\u3000\u3000\u6570\u636e\u89e3\u7801\uff1a\u4f7f\u7528\u6c49\u660e\u7801\u5bf9\u6570\u636e\u8fdb\u884c\u89e3\u7801\uff0c\u786e\u4fdd\u6570\u636e\u7684\u5b8c\u6574\u6027\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000<strong>\u7f51\u7edc\u67b6\u6784\u4e0e\u901a\u4fe1\u6a21\u5f0f<\/strong>\uff1a<\/p>\n\n\n\n<p>\u3000\u3000LoRa\u7f51\u7edc\u901a\u5e38\u91c7\u7528\u661f\u578b\u62d3\u6251\u7ed3\u6784\uff0c\u7531\u7ec8\u7aef\u8282\u70b9\u3001\u7f51\u5173\u548c\u5e94\u7528\u670d\u52a1\u5668\u7ec4\u6210\u3002\u7ec8\u7aef\u8282\u70b9\u8d1f\u8d23\u6570\u636e\u91c7\u96c6\u5e76\u53d1\u9001\u5230\u7f51\u5173\uff0c\u7f51\u5173\u5219\u8d1f\u8d23\u5c06\u6570\u636e\u4e0a\u4f20\u5230\u4e91\u670d\u52a1\u5668\u6216\u5e94\u7528\u670d\u52a1\u5668\u8fdb\u884c\u8fdb\u4e00\u6b65\u5904\u7406\u3002\u8fd9\u79cd\u67b6\u6784\u652f\u6301\u591a\u8df3\u901a\u4fe1\uff0c\u5141\u8bb8\u591a\u4e2a\u8282\u70b9\u4e4b\u95f4\u901a\u8fc7\u7f51\u5173\u8fdb\u884c\u901a\u4fe1\uff0c\u4ece\u800c\u5b9e\u73b0\u5927\u89c4\u6a21\u7269\u8054\u7f51\u5e94\u7528\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u529f\u8017\u4f18\u5316<\/strong>\uff1a<\/p>\n\n\n\n<p>\u3000\u3000LoRa\u534f\u8bae\u7279\u522b\u6ce8\u91cd\u4f4e\u529f\u8017\u8bbe\u8ba1\uff0c\u901a\u8fc7\u7761\u7720\u5524\u9192\u673a\u5236\u3001\u81ea\u9002\u5e94\u6570\u636e\u901f\u7387\u8c03\u6574\u548c\u4f4e\u529f\u8017\u7f16\u7801\u7b56\u7565\u7b49\u6280\u672f\u624b\u6bb5\uff0c\u5728\u4fdd\u8bc1\u901a\u4fe1\u8d28\u91cf\u7684\u540c\u65f6\u6700\u5927\u9650\u5ea6\u5730\u964d\u4f4e\u529f\u8017\u3002\u8fd9\u4f7f\u5f97LoRa\u8bbe\u5907\u53ef\u4ee5\u5728\u7535\u6c60\u4f9b\u7535\u7684\u60c5\u51b5\u4e0b\u957f\u65f6\u95f4\u8fd0\u884c\uff0c\u9002\u7528\u4e8e\u9700\u8981\u957f\u671f\u90e8\u7f72\u7684\u7269\u8054\u7f51\u5e94\u7528\u3002<\/p>\n\n\n\n<p>\u3000\u3000LoRa\u534f\u8bae\u901a\u8fc7\u6269\u9891\u8c03\u5236\u6280\u672f\u548c\u4f18\u5316\u7684\u901a\u4fe1\u7b56\u7565\uff0c\u5728\u4f4e\u529f\u8017\u548c\u957f\u8ddd\u79bb\u4f20\u8f93\u65b9\u9762\u8868\u73b0\u51fa\u8272\uff0c\u5e7f\u6cdb\u5e94\u7528\u4e8e\u7269\u8054\u7f51\u3001\u667a\u80fd\u5bb6\u5c45\u3001\u5de5\u4e1a\u81ea\u52a8\u5316\u7b49\u9886\u57df\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e00\u3001 LoRa\u534f\u8bae\u7684\u6269\u9891\u8c03\u5236\u6280\u672f(CSS)\u4e0e\u4f20\u7edf\u8c03\u5236\u6280\u672f\u76f8\u6bd4\u7684\u5177\u4f53\u4f18\u52bf\u548c\u52a3\u52bf<\/h2>\n\n\n\n<p>\u3000\u3000\u6269\u9891\u8c03\u5236\u6280\u672f\uff0c\u5c24\u5176\u662f<strong>Chirp Spread Spectrum\uff08CSS\uff09<\/strong>\uff0c\u5728\u65e0\u7ebf\u901a\u4fe1\u9886\u57df\u4e2d\u5360\u636e\u91cd\u8981\u5730\u4f4d\u3002CSS\u901a\u8fc7\u5c06\u4fe1\u53f7\u9891\u7387\u7ebf\u6027\u6216\u975e\u7ebf\u6027\u5730\u8fde\u7eed\u8c03\u5236\uff0c\u751f\u6210\u201c\u5541\u557e\u201d\u4fe1\u53f7\uff0c\u4ece\u800c\u5b9e\u73b0\u4fe1\u53f7\u7684\u6269\u5c55\u3002\u8fd9\u4e00\u6280\u672f\u4e0e\u4f20\u7edf\u8c03\u5236\u65b9\u6cd5\uff0c\u5982<strong>\u5e45\u79fb\u952e\u63a7\uff08ASK\uff09<\/strong>\u3001**\u9891\u79fb\u952e\u63a7(FSK)<strong>\u548c<\/strong>\u76f8\u79fb\u952e\u63a7(PSK)**\u7b49\u76f8\u6bd4\uff0c\u5177\u6709\u72ec\u7279\u7684\u4fe1\u53f7\u5904\u7406\u65b9\u5f0f\u548c\u4f20\u8f93\u7279\u6027\u3002\u4f20\u7edf\u8c03\u5236\u6280\u672f\u901a\u5e38\u4f9d\u8d56\u4e8e\u5728\u6709\u9650\u5e26\u5bbd\u5185\u4f20\u8f93\u9ad8\u9891\u7387\u4fe1\u53f7\uff0c\u800cCSS\u901a\u8fc7\u6269\u5c55\u4fe1\u53f7\u5e26\u5bbd\uff0c\u4f7f\u5176\u5728\u65f6\u95f4\u548c\u9891\u7387\u4e0a\u5206\u6563\uff0c\u8fdb\u800c\u63d0\u5347\u4fe1\u53f7\u7684\u9c81\u68d2\u6027\u548c\u6297\u5e72\u6270\u80fd\u529b\u3002<\/p>\n\n\n\n<h3 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class=\"wp-block-heading\">\u3000\u3000\u4e8c\u3001 LoRa\u534f\u8bae\u5728\u4f4e\u529f\u8017\u8bbe\u8ba1\u65b9\u9762\u91c7\u7528\u4e86\u54ea\u4e9b\u5177\u4f53\u6280\u672f\u624b\u6bb5?<\/h2>\n\n\n\n<p>\u3000\u3000LoRa\u534f\u8bae\u5728\u4f4e\u529f\u8017\u8bbe\u8ba1\u65b9\u9762\u91c7\u7528\u4e86\u591a\u79cd\u5177\u4f53\u6280\u672f\u624b\u6bb5\uff0c\u8fd9\u4e9b\u624b\u6bb5\u663e\u8457\u63d0\u5347\u4e86\u8bbe\u5907\u7684\u7eed\u822a\u80fd\u529b\u3002\u4ee5\u4e0b\u662f\u8be6\u7ec6\u7684\u5206\u6790\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30001.&nbsp;<strong>\u4f4e\u529f\u8017\u5c04\u9891\u6a21\u5757<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000LoRa\u6280\u672f\u4f7f\u7528\u4f4e\u529f\u8017\u5c04\u9891\u6a21\u5757\uff0c\u5982SX1276\u82af\u7247\u548cSTM32L185\u4e3b\u82af\u7247\uff0c\u8fd9\u4e9b\u6a21\u5757\u672c\u8eab\u5177\u6709\u8f83\u4f4e\u7684\u529f\u8017\uff0c\u4ece\u800c\u964d\u4f4e\u4e86\u6574\u4e2a\u7cfb\u7edf\u7684\u529f\u8017\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30002.&nbsp;<strong>\u591a\u7ea7\u4f11\u7720\u4e0e\u7a7a\u4e2d\u5524\u9192<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000LoRa\u8bbe\u5907\u652f\u6301\u591a\u7ea7\u4f11\u7720\u6a21\u5f0f\u548c\u7a7a\u4e2d\u5524\u9192\u529f\u80fd\u3002\u8fd9\u610f\u5473\u7740\u8bbe\u5907\u53ef\u4ee5\u5728\u4e0d\u9700\u8981\u65f6\u8fdb\u5165\u4f11\u7720\u72b6\u6001\uff0c\u4ec5\u5728\u63a5\u6536\u5230\u6570\u636e\u65f6\u88ab\u5524\u9192\uff0c\u4ece\u800c\u8fdb\u4e00\u6b65\u964d\u4f4e\u529f\u8017\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30003.&nbsp;<strong>\u4f4e\u529f\u8017\u5f85\u673a\u72b6\u6001<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000\u5728\u5f85\u673a\u72b6\u6001\u4e0b\uff0cLoRa\u8bbe\u5907\u7684\u7535\u6d41\u6d88\u8017\u975e\u5e38\u4f4e\u3002\u4f8b\u5982\uff0c\u745e\u79d1\u6167\u8054\u7684RAK4200S+THC500\u6e29\u6e7f\u5ea6\u4f20\u611f\u5668\u5728\u5f85\u673a\u72b6\u6001\u4e0b\u7684\u7535\u6d41\u53ef\u4ee5\u964d\u81f34uA\uff0c\u8fd9\u4f7f\u5f97\u8bbe\u5907\u80fd\u591f\u957f\u65f6\u95f4\u4fdd\u6301\u4f4e\u529f\u8017\u8fd0\u884c\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30004.&nbsp;<strong>\u667a\u80fd\u7535\u6c60\u7ba1\u7406\u6280\u672f<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000LoRa\u534f\u8bae\u901a\u8fc7\u667a\u80fd\u7535\u6c60\u7ba1\u7406\u6280\u672f\uff0c\u786e\u4fdd\u80fd\u91cf\u80fd\u591f\u6301\u7eed\u4e0d\u65ad\uff0c\u4f7f\u8bbe\u5907\u66f4\u52a0\u8010\u7528\u548c\u9ad8\u6548\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30005.&nbsp;<strong>\u4f4e\u529f\u8017\u8c03\u5236\u6280\u672f<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000LoRa\u91c7\u7528\u57fa\u4e8eCSS(Chirp Spread Spectrum\uff0c\u7ebf\u6027\u8c03\u9891\u6269\u9891)\u7684\u8c03\u5236\u6280\u672f\uff0c\u8fd9\u79cd\u6280\u672f\u8bbe\u8ba1\u975e\u5e38\u6ce8\u91cd\u4f4e\u529f\u8017\u548c\u8fdc\u8ddd\u79bb\u901a\u4fe1\u7684\u5e73\u8861\u3002CSS\u8c03\u5236\u6280\u672f\u5177\u6709\u9ad8\u7075\u654f\u5ea6\u63a5\u6536\u80fd\u529b\uff0c\u80fd\u591f\u5728\u4f4e\u529f\u8017\u7684\u540c\u65f6\u5b9e\u73b0\u8fdc\u8ddd\u79bb\u901a\u4fe1\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30006.&nbsp;<strong>\u964d\u4f4e\u53d1\u5c04\u529f\u7387<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000LoRa\u8bbe\u5907\u5728\u53d1\u5c04\u65f6\u91c7\u7528\u8f83\u4f4e\u7684\u5c04\u9891\u529f\u7387\uff0c\u4ece\u800c\u51cf\u5c11\u53d1\u5c04\u65f6\u7684\u80fd\u91cf\u6d88\u8017\u3002\u6b64\u5916\uff0c\u901a\u8fc7\u51cf\u5c11\u53d1\u9001\u6b21\u6570\u3001\u91c7\u7528ADR(\u81ea\u52a8\u91cd\u4f20\u8bf7\u6c42)\u6280\u672f\u8c03\u6574\u4f20\u8f93\u901f\u7387\u548c\u529f\u7387\uff0c\u5e76\u5173\u95ed\u786e\u8ba4\u5e27\u529f\u80fd\uff0c\u8fdb\u4e00\u6b65\u964d\u4f4e\u4e86\u529f\u8017\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30007.&nbsp;<strong>\u9009\u62e9\u4f4e\u529f\u8017\u4f20\u611f\u5668<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000\u4f7f\u7528\u4f4e\u529f\u8017\u7684MEMS\u4f20\u611f\u5668(\u5982WisBlock\u7cfb\u5217\u4e2d\u7684MEMS\u4f20\u611f\u5668)\uff0c\u53ef\u4ee5\u8fdb\u4e00\u6b65\u964d\u4f4e\u6574\u4f53\u7cfb\u7edf\u7684\u529f\u8017\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30008.&nbsp;<strong>\u4f18\u5316\u5de5\u4f5c\u6a21\u5f0f<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000LoRa\u8bbe\u5907\u5728\u4e0d\u540c\u7684\u5de5\u4f5c\u6a21\u5f0f\u4e0b\u6709\u4e0d\u540c\u7684\u529f\u8017\u8868\u73b0\u3002\u4f8b\u5982\uff0c\u5728\u5f85\u673a\/\u4f11\u7720\u6a21\u5f0f\u4e0b\uff0c\u4f20\u611f\u5668\u91c7\u96c6\u548c\u53d1\u9001\u6570\u636e\u7684\u529f\u8017\u8f83\u4f4e\uff0c\u4f46\u6301\u7eed\u65f6\u95f4\u957f;\u800c\u5728\u6570\u636e\u4f20\u8f93\u9636\u6bb5\uff0c\u529f\u8017\u8f83\u9ad8\u3002\u901a\u8fc7\u4f18\u5316\u8fd9\u4e9b\u5de5\u4f5c\u6a21\u5f0f\uff0c\u53ef\u4ee5\u663e\u8457\u5ef6\u957f\u8bbe\u5907\u7684\u7eed\u822a\u65f6\u95f4\u3002<\/p>\n\n\n\n<p>\u3000\u3000LoRa\u534f\u8bae\u901a\u8fc7\u4f4e\u529f\u8017\u5c04\u9891\u6a21\u5757\u3001\u591a\u7ea7\u4f11\u7720\u4e0e\u7a7a\u4e2d\u5524\u9192\u3001\u4f4e\u529f\u8017\u5f85\u673a\u72b6\u6001\u3001\u667a\u80fd\u7535\u6c60\u7ba1\u7406\u6280\u672f\u3001\u4f4e\u529f\u8017\u8c03\u5236\u6280\u672f\u3001\u964d\u4f4e\u53d1\u5c04\u529f\u7387\u3001\u9009\u62e9\u4f4e\u529f\u8017\u4f20\u611f\u5668\u4ee5\u53ca\u4f18\u5316\u5de5\u4f5c\u6a21\u5f0f\u7b49\u591a\u79cd\u6280\u672f\u624b\u6bb5\uff0c\u663e\u8457\u63d0\u5347\u4e86\u8bbe\u5907\u7684\u7eed\u822a\u80fd\u529b\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e09\u3001 LoRa\u534f\u8bae\u7684\u6297\u5e72\u6270\u80fd\u529b\u548c\u901a\u4fe1\u8ddd\u79bb\u8868\u73b0\u5982\u4f55?<\/h2>\n\n\n\n<p>\u3000\u3000LoRa\u534f\u8bae\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u7684\u6297\u5e72\u6270\u80fd\u529b\u548c\u901a\u4fe1\u8ddd\u79bb\u8868\u73b0\u5982\u4e0b\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30001. \u6297\u5e72\u6270\u80fd\u529b<\/h3>\n\n\n\n<p>\u3000\u3000LoRa\u534f\u8bae\u5177\u6709\u51fa\u8272\u7684\u6297\u5e72\u6270\u80fd\u529b\uff0c\u8fd9\u4e3b\u8981\u5f97\u76ca\u4e8e\u5176\u72ec\u7279\u7684\u6269\u9891\u8c03\u5236\u6280\u672f(Chirp Spread Spectrum, CSS)\u3002CSS\u8c03\u5236\u65b9\u5f0f\u80fd\u591f\u5728\u4e0d\u53d7\u5e72\u6270\u7684\u60c5\u51b5\u4e0b\u5b9e\u73b0\u8fdc\u8ddd\u79bb\u901a\u4fe1\uff0c\u5e76\u4e14\u5728\u9762\u5bf9\u5176\u4ed6\u65e0\u7ebf\u4fe1\u53f7\u5982WiFi\u7684\u5e72\u6270\u65f6\uff0c\u4ecd\u80fd\u4fdd\u6301\u8f83\u9ad8\u7684\u901a\u4fe1\u8d28\u91cf\u548c\u7a33\u5b9a\u6027\u3002\u6b64\u5916\uff0cLoRa\u6a21\u5757\u5728\u4f4e\u4e8e\u566a\u58f020dB\u7684\u73af\u5883\u4e0b\u4f9d\u7136\u53ef\u4ee5\u6b63\u5e38\u901a\u4fe1\uff0c\u800c\u4f20\u7edf\u901a\u4fe1\u6280\u672f\u5219\u9700\u8981\u566a\u58f0\u57288dB\u4ee5\u4e0a\u624d\u80fd\u4fdd\u8bc1\u89e3\u8c03\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30002. \u901a\u4fe1\u8ddd\u79bb<\/h3>\n\n\n\n<p>\u3000\u3000LoRa\u534f\u8bae\u7684\u901a\u4fe1\u8ddd\u79bb\u7406\u8bba\u4e0a\u53ef\u4ee5\u8fbe\u5230\u6570\u516c\u91cc\u751a\u81f3\u6570\u5341\u516c\u91cc\uff0c\u4f46\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u901a\u5e38\u5728\u57ce\u5e02\u73af\u5883\u4e2d\u4e3a2-5\u516c\u91cc\u3002LoRa\u7684\u8fdc\u8ddd\u79bb\u4f20\u8f93\u80fd\u529b\u4e3b\u8981\u4f9d\u8d56\u4e8e\u5176\u7075\u654f\u5ea6\u4f18\u52bf\u548c\u6269\u9891\u6280\u672f\u3002\u4f8b\u5982\uff0c\u5728dBW=125kHz\u3001SF=7\u65f6\uff0cLoRa\u7684\u7075\u654f\u5ea6\u4e3a-123dBm\uff0c\u8fdc\u9ad8\u4e8e\u84dd\u7259\u548cZigBee\u7684\u7075\u654f\u5ea6\u3002\u6b64\u5916\uff0cLoRa\u8fd8\u5229\u7528\u957f\u7801\u957f\u5ea6\u548c\u591a\u6269\u9891\u56e0\u5b50\u6280\u672f\u6765\u63d0\u9ad8\u901a\u4fe1\u8ddd\u79bb\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30003. \u5f71\u54cd\u56e0\u7d20<\/h3>\n\n\n\n<p>\u3000\u3000LoRa\u534f\u8bae\u7684\u6027\u80fd\u53d7\u591a\u79cd\u56e0\u7d20\u5f71\u54cd\uff0c\u5305\u62ec\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u53d1\u5c04\u529f\u7387<\/strong>\uff1a\u53d1\u5c04\u529f\u7387\u8d8a\u9ad8\uff0c\u901a\u4fe1\u8ddd\u79bb\u8d8a\u8fdc\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u63a5\u6536\u7075\u654f\u5ea6<\/strong>\uff1a\u63a5\u6536\u7075\u654f\u5ea6\u8d8a\u9ad8\uff0c\u4fe1\u53f7\u8870\u51cf\u8d8a\u5c0f\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u5de5\u4f5c\u9891\u7387<\/strong>\uff1a\u4e0d\u540c\u9891\u7387\u6bb5\u7684\u4fe1\u53f7\u4f20\u8f93\u80fd\u529b\u4e0d\u540c\uff0c\u4f4e\u9891\u6bb5\u4fe1\u53f7\u4f20\u8f93\u80fd\u529b\u66f4\u5f3a\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u5929\u7ebf\u589e\u76ca<\/strong>\uff1a\u4f7f\u7528\u9ad8\u589e\u76ca\u5929\u7ebf\u53ef\u4ee5\u63d0\u9ad8\u4fe1\u53f7\u5f3a\u5ea6\u548c\u51cf\u5c11\u8870\u51cf\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u73af\u5883\u6761\u4ef6<\/strong>\uff1a\u57ce\u5e02\u73af\u5883\u4e2d\u7684\u5176\u4ed6\u6b21\u7ea7\u7528\u6237(\u5982WiFi\u3001\u84dd\u7259\u7b49)\u4f1a\u5bf9LoRa\u4fe1\u53f7\u4ea7\u751f\u5e72\u6270\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30004. \u5b9e\u9645\u5e94\u7528\u6848\u4f8b<\/h3>\n\n\n\n<p>\u3000\u3000\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0cLoRa\u6280\u672f\u5df2\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u7269\u8054\u7f51\u3001\u667a\u80fd\u5bb6\u5c45\u3001\u667a\u6167\u519c\u4e1a\u7b49\u9886\u57df\u3002\u4f8b\u5982\uff0c\u5728\u7f8e\u56fd\u7845\u8c37\u6e7e\u533a\u7684\u4e00\u4e2aLoRa\u7f51\u5173\u8986\u76d6\u8303\u56f4\u5185\uff0c\u6700\u8fdc\u8986\u76d6\u8ddd\u79bb\u53ef\u8fbe50km\u3002\u6b64\u5916\uff0cLoRa\u6280\u672f\u5728\u519b\u4e8b\u548c\u592a\u7a7a\u901a\u4fe1\u4e2d\u4e5f\u5f97\u5230\u4e86\u5e94\u7528\uff0c\u56e0\u5176\u5728\u6781\u7aef\u73af\u5883\u4e0b\u7684\u7a33\u5b9a\u6027\u548c\u6297\u5e72\u6270\u80fd\u529b\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u56db\u3001 LoRa\u534f\u8bae\u7684\u6570\u636e\u7f16\u7801\u4e0e\u8c03\u5236\u6d41\u7a0b\u4e2d\uff0c\u6c49\u660e\u7801\u548c\u767d\u5316\u5904\u7406\u7684\u5177\u4f53\u4f5c\u7528?<\/h2>\n\n\n\n<p>\u3000\u3000\u5728<strong>LoRa\u534f\u8bae<\/strong>\u7684\u6570\u636e\u7f16\u7801\u4e0e\u8c03\u5236\u6d41\u7a0b\u4e2d\uff0c<strong>\u6c49\u660e\u7801<\/strong>\u548c<strong>\u767d\u5316\u5904\u7406<\/strong>\u626e\u6f14\u7740\u5173\u952e\u89d2\u8272\uff0c\u786e\u4fdd\u6570\u636e\u4f20\u8f93\u7684\u53ef\u9760\u6027\u4e0e\u6548\u7387\u3002\u9996\u5148\uff0cLoRa\u534f\u8bae\u91c7\u7528\u4e86**Chirp Spread 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