{"id":99273,"date":"2024-11-17T00:13:25","date_gmt":"2024-11-16T16:13:25","guid":{"rendered":"\/\/www.viralrail.com\/?p=99273"},"modified":"2024-11-17T00:13:28","modified_gmt":"2024-11-16T16:13:28","slug":"lwxcsmkgzyl","status":"publish","type":"post","link":"\/\/www.viralrail.com\/blog\/99273.html","title":{"rendered":"LoRa\u65e0\u7ebf\u4f20\u8f93\u6a21\u5757\u5de5\u4f5c\u539f\u7406"},"content":{"rendered":"\n<p>\u3000\u3000<strong>LoRa\u65e0\u7ebf\u4f20\u8f93\u6a21\u5757\u7684\u5de5\u4f5c\u539f\u7406<\/strong>\u4e3b\u8981\u57fa\u4e8e<strong>\u6269\u9891\u8c03\u5236<\/strong>\u6280\u672f\uff0c\u7279\u522b\u662f\u91c7\u7528Chirp Spread Spectrum(CSS)\u8c03\u5236\u65b9\u5f0f\u3002\u8fd9\u79cd\u6280\u672f\u901a\u8fc7\u7ebf\u6027\u9891\u7387\u8c03\u5236(LFM)\u4ea7\u751f\u201c\u5541\u557e\u201d\u4fe1\u53f7\uff0c\u6bcf\u4e2a\u6570\u636e\u5305\u7684\u8f7d\u6ce2\u9891\u7387\u968f\u7740\u65f6\u95f4\u7ebf\u6027\u53d8\u5316\uff0c\u4ece\u800c\u5b9e\u73b0\u8fdc\u8ddd\u79bb\u3001\u4f4e\u529f\u8017\u548c\u9ad8\u6297\u5e72\u6270\u6027\u7684\u901a\u4fe1\u7279\u6027\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u5728\u53d1\u9001\u8fc7\u7a0b\u4e2d\uff0cLoRa\u6a21\u5757\u9996\u5148\u5c06\u8981\u53d1\u9001\u7684\u6570\u636e\u901a\u8fc7\u5fae\u63a7\u5236\u5668\u4f20\u8f93\u5230\u5c04\u9891\u82af\u7247\u4e2d\u3002\u5c04\u9891\u82af\u7247\u5c06\u6570\u636e\u8fdb\u884c\u6269\u9891\u8c03\u5236\uff0c\u5e76\u5c06\u5176\u8f6c\u5316\u4e3a\u4e00\u7cfb\u5217\u7b26\u53f7\uff0c\u7136\u540e\u901a\u8fc7\u5929\u7ebf\u53d1\u5c04\u51fa\u53bb\u3002\u63a5\u6536\u7aef\u901a\u8fc7\u63a5\u6536\u5929\u7ebf\u63a5\u6536\u5230\u5c04\u9891\u4fe1\u53f7\uff0c\u5e76\u7ecf\u8fc7\u89e3\u8c03\u5904\u7406\u540e\u5f97\u5230\u539f\u59cb\u6570\u636e\u5305\uff0c\u518d\u5c06\u539f\u59cb\u6570\u636e\u5305\u6062\u590d\u4e3a\u53ef\u8bfb\u6570\u636e\u3002<\/p>\n\n\n\n<p>\u3000\u3000LoRa\u6a21\u5757\u5177\u6709\u4ee5\u4e0b\u7279\u70b9\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u4f4e\u529f\u8017<\/strong>\uff1a\u7531\u4e8e\u91c7\u7528\u4e86\u6269\u9891\u8c03\u5236\u6280\u672f\uff0cLoRa\u6a21\u5757\u5728\u4f20\u8f93\u6570\u636e\u65f6\u529f\u8017\u8f83\u4f4e\uff0c\u9002\u5408\u7535\u6c60\u4f9b\u7535\u7684\u8bbe\u5907\u957f\u65f6\u95f4\u8fd0\u884c\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u957f\u8ddd\u79bb\u4f20\u8f93<\/strong>\uff1aLoRa\u6a21\u5757\u80fd\u591f\u5728\u590d\u6742\u7684\u65e0\u7ebf\u901a\u4fe1\u73af\u5883\u4e2d\u5b9e\u73b0\u6570\u767e\u7c73\u81f3\u6570\u516c\u91cc\u7684\u901a\u4fe1\u8ddd\u79bb\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u6297\u5e72\u6270\u80fd\u529b\u5f3a<\/strong>\uff1a\u6269\u9891\u6280\u672f\u4f7f\u5f97LoRa\u6a21\u5757\u5177\u6709\u8f83\u5f3a\u7684\u6297\u5e72\u6270\u80fd\u529b\uff0c\u80fd\u591f\u5728\u591a\u5f84\u8870\u843d\u548c\u566a\u58f0\u73af\u5883\u4e2d\u7a33\u5b9a\u5de5\u4f5c\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000\u6b64\u5916\uff0cLoRa\u6a21\u5757\u901a\u5e38\u7531\u5c04\u9891\u82af\u7247\u3001\u5fae\u63a7\u5236\u5668\u3001\u7535\u6e90\u7ba1\u7406\u82af\u7247\u548c\u5929\u7ebf\u7b49\u7ec4\u6210\uff0c\u5176\u4e2d\u5c04\u9891\u82af\u7247\u662f\u6838\u5fc3\u90e8\u4ef6\uff0c\u8d1f\u8d23\u4fe1\u53f7\u7684\u8c03\u5236\u89e3\u8c03\u548c\u5904\u7406\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0cLoRa\u6a21\u5757\u5e7f\u6cdb\u5e94\u7528\u4e8e\u7269\u8054\u7f51\u3001\u667a\u80fd\u5bb6\u5c45\u3001\u667a\u80fd\u519c\u4e1a\u7b49\u9886\u57df\uff0c\u63d0\u4f9b\u8fdc\u8ddd\u79bb\u3001\u4f4e\u529f\u8017\u3001\u9ad8\u53ef\u9760\u7684\u65e0\u7ebf\u4f20\u8f93\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e00\u3001 LoRa\u65e0\u7ebf\u4f20\u8f93\u6a21\u5757\u7684Chirp Spread Spectrum(CSS)\u8c03\u5236\u65b9\u5f0f<\/h2>\n\n\n\n<p>\u3000\u3000LoRa\u65e0\u7ebf\u4f20\u8f93\u6a21\u5757\u91c7\u7528\u7684Chirp Spread Spectrum(CSS)\u8c03\u5236\u65b9\u5f0f\u662f\u4e00\u79cd\u57fa\u4e8e\u5541\u557e\u4fe1\u53f7\u7684\u6269\u9891\u6280\u672f\uff0c\u5176\u6838\u5fc3\u5728\u4e8e\u5229\u7528\u9891\u7387\u968f\u65f6\u95f4\u7ebf\u6027\u53d8\u5316\u7684\u5541\u557e\u8109\u51b2\u6765\u7f16\u7801\u4fe1\u606f\u3002\u5177\u4f53\u5b9e\u73b0\u5982\u4e0b\uff1a<\/p>\n\n\n\n<p>\u3000\u3000LoRa\u4fe1\u53f7\u662f\u901a\u8fc7\u4e00\u7cfb\u5217\u9891\u7387\u968f\u65f6\u95f4\u7ebf\u6027\u589e\u52a0\u6216\u51cf\u5c11\u7684\u5541\u557e\u8109\u51b2(Chirp)\u6765\u5b9e\u73b0\u7684\u3002\u8fd9\u4e9b\u5541\u557e\u8109\u51b2\u6784\u6210\u4e86LoRa\u7684\u57fa\u672c\u6570\u636e\u7f16\u7801\u5355\u5143\uff0c\u79f0\u4e3a\u7b26\u53f7(Symbol)\u3002\u6bcf\u4e2a\u7b26\u53f7\u5305\u542b\u591a\u4e2a\u7b49\u957f\u7684\u65f6\u9699\uff0c\u79f0\u4e3achips\uff0c\u8fd9\u4e9bchips\u7531K\u4e2a\u7b49\u957f\u7684\u65f6\u9699\u7ec4\u6210\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u6bcf\u4e2a\u7b26\u53f7\u7684\u65f6\u95f4\u957f\u5ea6\u7531\u6269\u9891\u56e0\u5b50(Spreading Factor, SF)\u51b3\u5b9a\u3002SF\u503c\u8d8a\u9ad8\uff0c\u7b26\u53f7\u4e2d\u7684\u4f4d\u6570\u8d8a\u591a\uff0c\u4f46\u7b26\u53f7\u7684\u65f6\u95f4\u6301\u7eed\u65f6\u95f4\u4e5f\u8d8a\u957f\u3002\u4f8b\u5982\uff0cSF\u503c\u589e\u52a01.\u7b26\u53f7\u4e2d\u7684\u4f4d\u6570\u589e\u52a0\uff0c\u4f46chirps\u7684\u6570\u91cf\u7ffb\u500d\uff0c\u53d1\u9001\u76f8\u540c\u6d88\u606f\u6240\u9700\u7684\u65f6\u95f4\u7ffb\u500d\uff0c\u6570\u636e\u901f\u5ea6\u63a5\u8fd1\u964d\u4f4eSF\u503c\u7684\u4e00\u534a\u3002<\/p>\n\n\n\n<p>\u3000\u3000LoRa\u4f7f\u7528M-ary\u8c03\u5236\u65b9\u6848\uff0c\u901a\u8fc7\u5faa\u73af\u79fb\u4f4d\u4ea7\u751f\u4e0d\u540c\u7684\u7b26\u53f7\u3002\u6bcf\u4e2a\u7b26\u53f7\u5360\u636e\u6574\u4e2a\u5e26\u5bbd\uff0c\u5e76\u4e14\u4fe1\u606f\u7f16\u7801\u5728\u7b26\u53f7\u5185\u7684\u9891\u7387\u53d8\u5316\u4e2d\u3002\u589e\u52a0SF\u503c\u53ef\u4ee5\u63d0\u9ad8\u4fe1\u53f7\u7684\u6297\u5e72\u6270\u80fd\u529b\uff0c\u56e0\u4e3a\u66f4\u9ad8\u7684SF\u503c\u610f\u5473\u7740\u66f4\u591a\u7684\u5904\u7406\u589e\u76ca\uff0c\u4ece\u800c\u63d0\u9ad8\u4e86\u566a\u58f0\u548c\u5e72\u6270\u7684\u514d\u75ab\u80fd\u529b\u3002<\/p>\n\n\n\n<p>\u3000\u3000LoRa\u5305\u901a\u5e38\u4ee5\u591a\u4e2a\u91cd\u590d\u7684\u57fa\u5e26\u4e0a\u884c\u5541\u557e\u5f00\u59cb\uff0c\u968f\u540e\u662f\u7528\u4e8e\u7f51\u7edc\u8bc6\u522b\u7684\u4e24\u4e2a\u8c03\u5236\u7b26\u53f7\u548c\u7528\u4e8e\u7cbe\u786e\u540c\u6b65\u76842.25\u4e2a\u4e0b\u884c\u5541\u557e\u3002\u8fd9\u79cd\u7ed3\u6784\u6709\u52a9\u4e8e\u5b9e\u73b0\u53d1\u9001\u7aef\u548c\u63a5\u6536\u7aef\u4e4b\u95f4\u7684\u540c\u6b65\u3002<\/p>\n\n\n\n<p>\u3000\u3000CSS\u8c03\u5236\u65b9\u5f0f\u4f7f\u5f97LoRa\u4fe1\u53f7\u80fd\u591f\u6709\u6548\u5229\u7528\u5168\u90e8\u5e26\u5bbd\uff0c\u4ece\u800c\u514b\u670d\u4f20\u64ad\u8def\u5f84\u4e2d\u7684\u8870\u51cf\u548c\u5e72\u6270\uff0c\u5b9e\u73b0\u8fdc\u8ddd\u79bb\u901a\u4fe1\u3002\u6b64\u5916\uff0cLoRa\u8fd8\u5177\u6709\u5f88\u5f3a\u7684\u6297\u591a\u5f84\u8870\u843d\u548c\u591a\u666e\u52d2\u6548\u5e94\u7684\u80fd\u529b\uff0c\u8fd9\u4f7f\u5f97\u5b83\u7279\u522b\u9002\u7528\u4e8eISM\u9891\u6bb5\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e8c\u3001 LoRa\u6a21\u5757\u5728\u4f4e\u529f\u8017\u65b9\u9762\u7684\u6280\u672f\u7ec6\u8282<\/h2>\n\n\n\n<p>\u3000\u3000LoRa\u6a21\u5757\u5728\u4f4e\u529f\u8017\u65b9\u9762\u7684\u6280\u672f\u7ec6\u8282\u4e3b\u8981\u4f53\u73b0\u5728\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u6269\u9891\u8c03\u5236\u6280\u672f<\/strong>\uff1aLoRa\u6a21\u5757\u91c7\u7528\u6269\u9891\u8c03\u5236\u6280\u672f\uff0c\u7279\u522b\u662f\u57fa\u4e8eChirp Spread Spectrum(CSS)\u6280\u672f\u3002\u8fd9\u79cd\u8c03\u5236\u65b9\u5f0f\u901a\u8fc7\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\u6269\u9891\u56e0\u5b50(SF)\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\uff0c\u4ece\u800c\u5f71\u54cd\u6297\u566a\u58f0\u3001\u6570\u636e\u4f20\u8f93\u901f\u5ea6\u548c\u901a\u4fe1\u8ddd\u79bb\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u4f4e\u529f\u8017\u8bbe\u8ba1<\/strong>\uff1aLoRa\u6a21\u5757\u5177\u6709\u8d85\u4f4e\u529f\u8017\u7684\u8bbe\u8ba1\u7279\u70b9\uff0c\u652f\u6301\u6df1\u5ea6\u4f11\u7720\u548c\u7a7a\u4e2d\u5524\u9192\u6a21\u5f0f\u3002\u4f8b\u5982\uff0cF8L10C-20\u548cF8L10C-20E\u7cfb\u5217LoRa\u6a21\u5757\u7684\u6700\u4f4e\u529f\u8017\u4e0d\u52303.5uA\u3002\u6b64\u5916\uff0cLoRa\u6a21\u5757\u8fd8\u652f\u6301\u52a8\u6001\u5207\u6362MCU\u5f15\u811a\u81f3\u8f93\u5165\u4e0a\u62c9\u548c\u60ac\u6d6e\u72b6\u6001\uff0c\u9002\u7528\u4e8e\u8f83\u957f\u5468\u671f\u7684\u8282\u80fd\u6a21\u5f0f\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u9ad8\u63a5\u6536\u7075\u654f\u5ea6<\/strong>\uff1aLoRa\u6a21\u5757\u5177\u6709\u9ad8\u63a5\u6536\u7075\u654f\u5ea6\uff0c\u8fd9\u4f7f\u5f97\u5176\u80fd\u591f\u5728\u4f4e\u53d1\u5c04\u529f\u7387\u4e0b\u5b9e\u73b0\u8fdc\u8ddd\u79bb\u901a\u4fe1\u3002\u4f8b\u5982\uff0cHYM78 LoRa\u6a21\u5757\u5728\u6807\u51c6\u8f93\u51fa\u529f\u7387\u4e0b\uff0c\u901f\u7387\u8d8a\u4f4e\uff0c\u63a5\u6536\u7075\u654f\u5ea6\u8d8a\u9ad8\uff0c\u4f20\u8f93\u8ddd\u79bb\u53ef\u8fbe3 &#8211; 10\u516c\u91cc\u5de6\u53f3\u3002\u8fd9\u79cd\u9ad8\u7075\u654f\u5ea6\u5f52\u529f\u4e8eLoRa\u7684\u76f4\u63a5\u5e8f\u5217\u6269\u9891\u6280\u672f\u548c\u524d\u5411\u7ea0\u9519\u7f16\u7801\u6280\u672f\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u4f18\u5316\u7684\u786c\u4ef6\u8bbe\u8ba1<\/strong>\uff1aLoRa\u6a21\u5757\u901a\u5e38\u91c7\u7528\u4f4e\u529f\u8017\u7684\u5c04\u9891\u82af\u7247\u548c\u5fae\u63a7\u5236\u5668\u3002\u4f8b\u5982\uff0cSEMTECH SX1278\u662f\u4e00\u79cd\u534a\u53cc\u5de5\u3001\u4f4e\u529f\u8017\u3001\u957f\u8ddd\u79bb\u7684\u6536\u53d1\u5668\uff0c\u5de5\u4f5c\u5728410MHz-525MHz\u7684\u8d85\u9ad8\u9891\u6bb5\u3002\u6b64\u5916\uff0cSTM32L4\u5fae\u63a7\u5236\u5668\u56e0\u5176\u4f4e\u529f\u8017\u7279\u6027\uff0c\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8eLoRa\u8282\u70b9\u4e2d\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u8f6f\u4ef6\u4f18\u5316<\/strong>\uff1a\u5728\u8f6f\u4ef6\u8bbe\u8ba1\u65b9\u9762\uff0c\u901a\u8fc7\u5408\u7406\u9009\u62e9\u5c04\u9891\u82af\u7247\u3001\u4f18\u5316MCU\u5de5\u4f5c\u6a21\u5f0f\u3001\u52a8\u6001\u914d\u7f6e\u5f15\u811a\u3001\u91c7\u7528\u9ad8\u6548\u7b97\u6cd5\u548cMCU\u4f11\u7720\u7b56\u7565\uff0c\u53ef\u4ee5\u6709\u6548\u964d\u4f4eLoRa\u7ec8\u7aef\u7cfb\u7edf\u7684\u529f\u8017\u548c\u6210\u672c\u3002\u4f8b\u5982\uff0c\u4f7f\u7528\u201c\u4e2d\u65ad+\u5b9a\u65f6\u5668\u8d85\u65f6\u201d\u63a7\u5236\u5c04\u9891\u6a21\u5757\uff0c\u4e00\u65e6\u5b8c\u6210\u53d1\u9001\u6216\u63a5\u6536\u5373\u8fdb\u5165\u4f11\u7720\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u5e94\u7528\u573a\u666f<\/strong>\uff1aLoRa\u6a21\u5757\u9002\u7528\u4e8e\u9700\u8981\u957f\u65f6\u95f4\u4f4e\u529f\u8017\u8fd0\u884c\u7684\u7269\u8054\u7f51\u5e94\u7528\uff0c\u5982\u667a\u80fd\u519c\u4e1a\u3001\u4f9b\u5e94\u94fe\u4e0e\u7269\u6d41\u3001\u667a\u6167\u57ce\u5e02\u7b49\u3002\u8fd9\u4e9b\u5e94\u7528\u901a\u5e38\u9700\u8981\u4f20\u611f\u5668\u548c\u6267\u884c\u5668\u5728\u975e\u5e38\u4f4e\u529f\u8017\u6a21\u5f0f\u4e0b\u8fd0\u884c\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e09\u3001 LoRa\u65e0\u7ebf\u4f20\u8f93\u6a21\u5757\u5728\u4e0d\u540c\u73af\u5883\u4e0b\u7684\u6297\u5e72\u6270\u80fd\u529b?<\/h2>\n\n\n\n<p>\u3000\u3000\u8bc4\u4f30LoRa\u65e0\u7ebf\u4f20\u8f93\u6a21\u5757\u5728\u4e0d\u540c\u73af\u5883\u4e0b\u7684\u6297\u5e72\u6270\u80fd\u529b\u9700\u8981\u4ece\u591a\u4e2a\u65b9\u9762\u8fdb\u884c\u5206\u6790\uff0c\u5305\u62ec\u5176\u6280\u672f\u7279\u6027\u3001\u5b9e\u9645\u5e94\u7528\u573a\u666f\u4e2d\u7684\u8868\u73b0\u4ee5\u53ca\u4e0e\u5176\u4ed6\u6280\u672f\u7684\u76f8\u4e92\u5f71\u54cd\u3002<\/p>\n\n\n\n<p>\u3000\u3000LoRa\u6280\u672f\u672c\u8eab\u5177\u6709\u8f83\u5f3a\u7684\u6297\u5e72\u6270\u80fd\u529b\u3002LoRa\u8c03\u5236\u6280\u672f\u5229\u7528Chirp Spreading Spectrum(CSS)\u7279\u6027\uff0c\u4f7f\u5f97\u4fe1\u53f7\u5728\u566a\u58f0\u73af\u5883\u4e0b\u4f9d\u7136\u80fd\u591f\u4fdd\u6301\u901a\u4fe1\u3002\u7814\u7a76\u8868\u660e\uff0cLoRa\u53ef\u4ee5\u5728\u4f4e\u4e8e\u566a\u58f020dB\u7684\u60c5\u51b5\u4e0b\u4f9d\u7136\u8fdb\u884c\u901a\u4fe1\uff0c\u5e76\u4e14\u5bf9\u7a81\u53d1\u6027\u7684\u968f\u673a\u5e72\u6270\u4e5f\u6709\u5f88\u597d\u7684\u5e94\u5bf9\u80fd\u529b\u3002\u6b64\u5916\uff0cLoRa\u8c03\u5236\u89e3\u8c03\u5668\u8fd8\u652f\u6301\u591a\u79cd\u8c03\u5236\u65b9\u6cd5\uff0c\u5982FSK\u3001GFSK\u3001MSK\u3001GMSK\u3001LoRa\u548cOOK\uff0c\u8fd9\u4e9b\u8c03\u5236\u65b9\u6cd5\u8fdb\u4e00\u6b65\u589e\u5f3a\u4e86LoRa\u5728\u4e0d\u540c\u73af\u5883\u4e0b\u7684\u6297\u5e72\u6270\u80fd\u529b\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u5728\u5177\u4f53\u7684\u5e94\u7528\u573a\u666f\u4e2d\uff0cLoRa\u8868\u73b0\u51fa\u4e0d\u540c\u7684\u6297\u5e72\u6270\u6027\u80fd\u3002\u4f8b\u5982\uff0c\u5728\u57ce\u5e02\u73af\u5883\u4e2d\uff0cLoRa\u53ef\u80fd\u4f1a\u53d7\u5230\u5176\u4ed6\u901a\u4fe1\u6280\u672f\u7684\u5e72\u6270\uff0c\u5982IEEE 802.15.4g\u3001Sigfox\u3001Z-Wave\u548cIO Home Control\u7b49\u3002\u7814\u7a76\u53d1\u73b0\uff0c\u5f53LoRa\u4e0e\u5176\u4ed6\u6280\u672f\u5171\u5b58\u65f6\uff0c\u53ef\u80fd\u4f1a\u51fa\u73b0\u6570\u636e\u5305\u4e22\u5931\u7684\u60c5\u51b5\u3002\u4f8b\u5982\uff0c\u5f53LoRa\u53d7\u5230Sigfox\u5e72\u6270\u65f6\uff0c\u6570\u636e\u5305\u4e22\u5931\u7387\u53ef\u9ad8\u8fbe28%\u3002\u7136\u800c\uff0cLoRa\u5728\u519c\u6751\u667a\u80fd\u7535\u7f51\u5e94\u7528\u4e2d\u8868\u73b0\u826f\u597d\uff0c\u5305\u6210\u529f\u6bd4\u8303\u56f4\u57280.9-0.95\u4e4b\u95f4\uff0c\u663e\u793a\u51fa\u5176\u5728\u4f4e\u5e72\u6270\u73af\u5883\u4e0b\u7684\u53ef\u9760\u6027\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u6b64\u5916\uff0cLoRa\u6a21\u5757\u7684\u8bbe\u8ba1\u4e5f\u5bf9\u5176\u6297\u5e72\u6270\u80fd\u529b\u6709\u91cd\u8981\u5f71\u54cd\u3002\u4f8b\u5982\uff0cRa-01SH-P\u6a21\u5757\u91c7\u7528SX1262\u5c04\u9891\u82af\u7247\uff0c\u5185\u7f6e\u529f\u7387\u653e\u5927\u5668(PA)\u548c\u4f4e\u566a\u58f0\u653e\u5927\u5668(LNA)\uff0c\u5b9e\u73b0\u4e86\u8d85\u8fc7-137dBm\u7684\u9ad8\u7075\u654f\u5ea6\u548c+29dBm\u7684\u53d1\u5c04\u529f\u7387\uff0c\u4f7f\u5176\u5728\u8d85\u8fdc\u8ddd\u79bb\u4f20\u8f93\u4e2d\u5177\u6709\u9ad8\u53ef\u9760\u6027\u3002\u8fd9\u79cd\u8bbe\u8ba1\u4e0d\u4ec5\u63d0\u9ad8\u4e86\u4fe1\u53f7\u7684\u6297\u5e72\u6270\u80fd\u529b\uff0c\u8fd8\u964d\u4f4e\u4e86\u529f\u8017\uff0c\u4f7f\u5176\u9002\u7528\u4e8e\u81ea\u52a8\u8ba1\u91cf\u3001\u5bb6\u5ead\u81ea\u52a8\u5316\u7b49\u9886\u57df\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u5728\u5b9e\u9645\u90e8\u7f72\u524d\uff0c\u901a\u8fc7\u4f7f\u7528\u5e72\u6270\u6a21\u62df\u5668\u548cSDR(\u8f6f\u4ef6\u5b9a\u4e49\u65e0\u7ebf\u7535)\u9884\u5148\u5f55\u5236\u7684\u771f\u5b9e\u9891\u8c31\u6d4b\u91cf\uff0c\u53ef\u4ee5\u66f4\u51c6\u786e\u5730\u8bc4\u4f30LoRa\u5728\u7279\u5b9a\u73af\u5883\u4e0b\u7684\u6297\u5e72\u6270\u80fd\u529b\u3002\u8fd9\u79cd\u65b9\u6cd5\u5141\u8bb8\u5728\u90e8\u7f72\u524d\u6a21\u62df\u5b9e\u9645\u7684\u5e72\u6270\u60c5\u51b5\uff0c\u4ece\u800c\u4f18\u5316\u7f51\u7edc\u8bbe\u8ba1\u3002<\/p>\n\n\n\n<p>\u3000\u3000LoRa\u65e0\u7ebf\u4f20\u8f93\u6a21\u5757\u5728\u4e0d\u540c\u73af\u5883\u4e0b\u7684\u6297\u5e72\u6270\u80fd\u529b\u53ef\u4ee5\u901a\u8fc7\u5176\u6280\u672f\u7279\u6027\u3001\u5e94\u7528\u573a\u666f\u4e2d\u7684\u8868\u73b0\u4ee5\u53ca\u4e0e\u5176\u4ed6\u6280\u672f\u7684\u76f8\u4e92\u5f71\u54cd\u6765\u7efc\u5408\u8bc4\u4f30\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u56db\u3001 LoRa\u65e0\u7ebf\u4f20\u8f93\u6a21\u5757\u7684\u5c04\u9891\u82af\u7247\u4e3b\u8981\u4f9b\u5e94\u5546<\/h2>\n\n\n\n<p>\u3000\u3000LoRa\u65e0\u7ebf\u4f20\u8f93\u6a21\u5757\u7684\u5c04\u9891\u82af\u7247\u4e3b\u8981\u4f9b\u5e94\u5546\u5305\u62ecSemtech\u516c\u53f8\u3002\u4ee5\u4e0b\u662f\u8fd9\u4e9b\u4f9b\u5e94\u5546\u7684\u6280\u672f\u7279\u70b9\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u3000Semtech\u516c\u53f8<\/h3>\n\n\n\n<p>\u3000\u3000Semtech\u516c\u53f8\u662fLoRa\u6280\u672f\u7684\u4e3b\u8981\u4f9b\u5e94\u5546\u4e4b\u4e00\uff0c\u5176LoRa\u5c04\u9891\u82af\u7247\u4e3b\u8981\u5305\u62ecSX1212\u3001SX1268\u3001SX1276\/8\u3001SX1280\u7b49\u7cfb\u5217\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>SX1212<\/strong><\/p>\n\n\n\n<p>\u3000\u3000<strong>\u6280\u672f\u7279\u70b9<\/strong>\uff1aSX1212\u82af\u7247\u5177\u6709\u8d85\u8fdc\u8ddd\u79bb\u6269\u9891\u8c03\u5236\u901a\u8baf\u3001\u9ad8\u6297\u5e72\u6270\u6027\u548c\u8d85\u4f4e\u7535\u6d41\u529f\u8017\u7684\u7279\u70b9\u3002\u5176\u63a5\u6536\u7075\u654f\u5ea6\u53ef\u8fbe\u5230-148dBm\uff0c\u5229\u7528\u9ad8\u6269\u9891\u56e0\u5b50\uff0c\u53ef\u4ee5\u5c06\u5c0f\u5bb9\u91cf\u6570\u636e\u901a\u8fc7\u5927\u8303\u56f4\u65e0\u7ebf\u7535\u9891\u8c31\u4f20\u8f93\u51fa\u53bb\uff0c\u5e76\u5177\u6709\u975e\u5e38\u9ad8\u7684\u90bb\u4fe1\u9053\u6291\u5236\u6bd4\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>SX1268<\/strong><\/p>\n\n\n\n<p>\u3000\u3000<strong>\u6280\u672f\u7279\u70b9<\/strong>\uff1aSX1268\u662f\u4e00\u6b3e\u534a\u53cc\u5de5\u7684\u6536\u53d1\u5668\u82af\u7247\uff0c\u5de5\u4f5c\u5728410MHz\uff5e441MHz\u9891\u6bb5\uff0c\u6bcf1MHz\u7684\u9891\u7387\u4f5c\u4e3a\u4e00\u4e2a\u4fe1\u9053\uff0c\u5171\u5206\u4e3a32\u4e2a\u4fe1\u9053\u3002\u8be5\u6a21\u5757\u53ef\u4ee5\u901a\u8fc7\u4e32\u53e3\u7528\u6307\u4ee4\u4fee\u6539\u6a21\u5757\u901a\u4fe1\u76f8\u5173\u7684\u5404\u79cd\u53c2\u6570\uff0c\u80fd\u591f\u81ea\u9002\u5e94\u5730\u8fdb\u884c\u4fe1\u9053\u7684\u8df3\u8f6c\u548c\u5730\u5740\u7684\u9009\u62e9\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>SX1276\/8<\/strong><\/p>\n\n\n\n<p>\u3000\u3000<strong>\u6280\u672f\u7279\u70b9<\/strong>\uff1aSX1276\/8\u7cfb\u5217\u82af\u7247\u7531Semtech\u4e8e2013\u5e74\u7814\u5236\uff0c\u9002\u7528\u4e8eSub-1GHz\u9891\u6bb5\u7684\u4f4e\u529f\u8017\u7269\u8054\u7f51\u65e0\u7ebf\u901a\u4fe1\u3002\u5176\u63a5\u6536\u7075\u654f\u5ea6\u6700\u9ad8\u53ef\u8fbe-148dBm\uff0c\u9002\u7528\u4e8e\u8fdc\u8ddd\u79bb\u4f4e\u529f\u8017\u7269\u8054\u7f51\u65e0\u7ebf\u901a\u4fe1\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>SX1280<\/strong><\/p>\n\n\n\n<p>\u3000\u3000<strong>\u6280\u672f\u7279\u70b9<\/strong>\uff1aSX1280\u82af\u7247\u57fa\u4e8eLoRa\u8c03\u5236\u6280\u672f\u5f00\u53d1\uff0c\u652f\u6301LoRa\u3001FLRC\u4ee5\u53ca\u4f20\u7edf\u7684FSK\u4e09\u79cd\u8c03\u5236\u65b9\u5f0f\u3002\u5176\u7279\u6b8a\u7684LoRa\u548cFLRC\u8c03\u5236\u65b9\u5f0f\u53ef\u5927\u5927\u589e\u52a0\u901a\u4fe1\u8ddd\u79bb\uff0c\u5185\u7f6eTOF\u6d4b\u8ddd\u529f\u80fd\uff0c\u53ef\u4ee5\u5b9e\u73b0\u6a21\u5757\u95f4\u8ddd\u79bb\u6d4b\u5b9a\uff0c\u5e76\u517c\u5bb9\u84dd\u7259\u7269\u7406\u5c42\u534f\u8bae\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e94\u3001 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Spread 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