{"id":96238,"date":"2024-08-01T10:10:52","date_gmt":"2024-08-01T02:10:52","guid":{"rendered":"\/\/www.dealsbon.com\/?p=96238"},"modified":"2024-08-01T10:11:06","modified_gmt":"2024-08-01T02:11:06","slug":"ldbqzmtx","status":"publish","type":"post","link":"\/\/www.dealsbon.com\/blog\/96238.html","title":{"rendered":"LoRa\u591a\u6807\u7b7e\u600e\u4e48\u901a\u4fe1"},"content":{"rendered":"\n<p>\u3000\u3000<strong>LoRa(Long Range)<\/strong>\u662f\u4e00\u79cd\u4f4e\u529f\u8017\u3001\u8fdc\u8ddd\u79bb\u7684\u65e0\u7ebf\u901a\u4fe1\u6280\u672f\uff0c\u5e7f\u6cdb\u5e94\u7528\u4e8e\u7269\u8054\u7f51\u9886\u57df\u3002\u5176\u4e3b\u8981\u7279\u70b9\u5305\u62ec\u957f\u8ddd\u79bb\u4f20\u8f93\u548c\u4f4e\u529f\u8017\u8bbe\u8ba1\uff0c\u9002\u7528\u4e8e\u5404\u79cd\u9700\u8981\u8fdc\u7a0b\u6570\u636e\u4f20\u8f93\u7684\u5e94\u7528\u573a\u666f\uff0c\u5982\u667a\u6167\u57ce\u5e02\u3001\u519c\u4e1a\u76d1\u6d4b\u548c\u8d44\u4ea7\u8ffd\u8e2a\u7b49\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u5728\u591a\u6807\u7b7e\u901a\u4fe1\u4e2d\uff0cLoRa\u901a\u8fc7\u6269\u9891\u8c03\u5236\u6280\u672f(Chirp Spread Spectrum, CSS)\u5b9e\u73b0\u4fe1\u53f7\u7684\u6297\u5e72\u6270\u80fd\u529b\uff0c\u5e76\u4e14\u53ef\u4ee5\u652f\u6301\u591a\u4e2a\u8282\u70b9\u540c\u65f6\u8fdb\u884c\u901a\u4fe1\u3002\u5177\u4f53\u6765\u8bf4\uff0c\u6bcf\u4e2aLoRa\u8282\u70b9\u53ef\u4ee5\u901a\u8fc7\u4e0d\u540c\u7684\u5730\u5740(addr)\u8fdb\u884c\u533a\u5206\uff0c\u4ece\u800c\u5b9e\u73b0\u4e00\u5bf9\u591a\u6216\u591a\u5bf9\u591a\u7684\u901a\u4fe1\u6a21\u5f0f\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u4e3a\u4e86\u914d\u7f6e\u591a\u4e2aLoRa\u6a21\u5757\u4ee5\u5b9e\u73b0\u901a\u4fe1\uff0c\u9700\u8981\u8003\u8651\u4ee5\u4e0b\u51e0\u4e2a\u5173\u952e\u53c2\u6570\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u6269\u9891\u56e0\u5b50<\/strong>\uff1a\u51b3\u5b9a\u4fe1\u53f7\u5e26\u5bbd\uff0c\u5f71\u54cd\u6297\u5e72\u6270\u80fd\u529b\u548c\u4f20\u8f93\u8ddd\u79bb\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u5e26\u5bbd<\/strong>\uff1a\u51b3\u5b9a\u4fe1\u53f7\u7684\u5bbd\u5ea6\uff0c\u901a\u5e38\u8bbe\u7f6e\u4e3a780 kHz\u6216125 kHz\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u7f16\u7801\u7387<\/strong>\uff1a\u5f71\u54cd\u6570\u636e\u4f20\u8f93\u7684\u6548\u7387\u548c\u53ef\u9760\u6027\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u9891\u7387<\/strong>\uff1a\u6839\u636e\u5b9e\u9645\u5e94\u7528\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u9891\u6bb5\uff0c\u5e38\u89c1\u7684\u6709433 MHz\u3001868 MHz\u548c915 MHz\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000\u6b64\u5916\uff0c\u5728\u591a\u6807\u7b7e\u901a\u4fe1\u4e2d\uff0c\u6bcf\u4e2a\u8282\u70b9\u7684\u53d1\u9001\u65f6\u95f4\u5468\u671f\u5e94\u9519\u5f00\u4e00\u4e9b\uff0c\u4ee5\u907f\u514d\u76f8\u4e92\u5e72\u6270\u5e76\u63d0\u9ad8\u901a\u4fe1\u7a33\u5b9a\u6027\u3002\u5bf9\u4e8e\u5927\u89c4\u6a21\u7684\u591a\u8282\u70b9\u901a\u4fe1\u7cfb\u7edf\uff0c\u5efa\u8bae\u91c7\u7528LoRaWAN\u534f\u8bae\uff0c\u8be5\u534f\u8bae\u63d0\u4f9b\u4e86\u96c6\u4e2d\u7ba1\u7406\u548c\u4f18\u5316\u7f51\u7edc\u6027\u80fd\u7684\u529f\u80fd\u3002<\/p>\n\n\n\n<p>\u3000\u3000LoRa\u591a\u6807\u7b7e\u901a\u4fe1\u7684\u5173\u952e\u5728\u4e8e\u6b63\u786e\u914d\u7f6e\u548c\u7ba1\u7406\u5404\u4e2a\u8282\u70b9\u7684\u53c2\u6570\uff0c\u5e76\u5229\u7528\u6269\u9891\u8c03\u5236\u6280\u672f\u63d0\u9ad8\u4fe1\u53f7\u7684\u6297\u5e72\u6270\u6027\u548c\u4f20\u8f93\u53ef\u9760\u6027\u3002\u901a\u8fc7\u5408\u7406\u7684\u7f51\u7edc\u67b6\u6784\u8bbe\u8ba1\u548c\u8282\u70b9\u7ba1\u7406\u7b56\u7565\uff0c\u53ef\u4ee5\u5b9e\u73b0\u9ad8\u6548\u7a33\u5b9a\u7684\u591a\u6807\u7b7e\u901a\u4fe1\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e00\u3001 LoRa\u591a\u6807\u7b7e\u901a\u4fe1\u4e2d\u6269\u9891\u8c03\u5236\u6280\u672f(CSS)\u7684\u5177\u4f53\u5de5\u4f5c\u539f\u7406<\/h2>\n\n\n\n<p>\u3000\u3000LoRa\u591a\u6807\u7b7e\u901a\u4fe1\u4e2d\u6269\u9891\u8c03\u5236\u6280\u672f(CSS)\u7684\u5177\u4f53\u5de5\u4f5c\u539f\u7406\u5982\u4e0b\uff1a<\/p>\n\n\n\n<p>\u3000\u3000LoRa(Long Range)\u662f\u4e00\u79cd\u57fa\u4e8e\u6269\u9891\u8c03\u5236\u7684\u65e0\u7ebf\u901a\u4fe1\u6280\u672f\uff0c\u5176\u6838\u5fc3\u662fChirp Spread Spectrum (CSS)\u6280\u672f\u3002CSS\u901a\u8fc7\u7ebf\u6027\u9891\u7387\u8c03\u5236(LFM)\u5b9e\u73b0\u4fe1\u53f7\u7684\u6269\u9891\u8c03\u5236\uff0c\u4ece\u800c\u63d0\u9ad8\u4fe1\u53f7\u7684\u6297\u5e72\u6270\u80fd\u529b\u548c\u4f20\u8f93\u8ddd\u79bb\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u5728CSS\u8c03\u5236\u8fc7\u7a0b\u4e2d\uff0cLoRa\u6a21\u5757\u5c06\u6570\u636e\u7f16\u7801\u5230\u4e00\u7cfb\u5217\u8fde\u7eed\u7684\u9891\u7387\u53d8\u5316\u7684\u6b63\u5f26\u6ce2\u4fe1\u53f7\uff0c\u5373\u5541\u557e\u4fe1\u53f7\u3002\u8fd9\u4e9b\u5541\u557e\u4fe1\u53f7\u7684\u9891\u7387\u968f\u65f6\u95f4\u7ebf\u6027\u589e\u52a0\uff0c\u5e76\u5728\u6bcf\u4e2a\u5468\u671f\u5185\u5b8c\u6210\u4e00\u4e2a\u5b8c\u6574\u7684\u9891\u7387\u626b\u63cf\u3002<\/p>\n\n\n\n<p>\u3000\u3000LoRa\u4f7f\u7528\u4e0d\u540c\u7684\u6269\u9891\u56e0\u5b50(SF)\u6765\u5e73\u8861\u6570\u636e\u901f\u7387\u548c\u4f20\u8f93\u8ddd\u79bb\u3002\u6269\u9891\u56e0\u5b50\u4ece7\u523012\u4e0d\u7b49\uff0c\u51b3\u5b9a\u4e86\u6bcf\u4e2a\u7b26\u53f7\u5185\u5305\u542b\u7684\u5541\u557e\u6570\u91cf\u3002\u8f83\u9ad8\u7684\u6269\u9891\u56e0\u5b50\u5141\u8bb8\u66f4\u8fdc\u7684\u8ddd\u79bb\uff0c\u4f46\u4ee5\u8f83\u4f4e\u7684\u6570\u636e\u901f\u7387\u4e3a\u4ee3\u4ef7;\u53cd\u4e4b\u4ea6\u7136\u3002\u4f8b\u5982\uff0cSF7\u5bf9\u5e94\u4e8e\u8f83\u9ad8\u7684\u6570\u636e\u901f\u7387\uff0c\u800cSF12\u5219\u63d0\u4f9b\u6700\u957f\u7684\u4f20\u8f93\u8ddd\u79bb\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u5728\u53d1\u9001\u7aef\uff0cLoRa\u6a21\u5757\u5c06\u539f\u59cb\u6bd4\u7279\u6d41\u8f6c\u6362\u4e3a\u5541\u557e\u4fe1\u53f7\u3002\u6bcf\u4e2a\u7b26\u53f7\u7531\u591a\u4e2a\u8fde\u7eed\u7684\u5541\u557e\u7ec4\u6210\uff0c\u6bcf\u4e2a\u5541\u557e\u7684\u521d\u59cb\u9891\u7387\u4e0d\u540c\uff0c\u4f46\u5176\u57fa\u672c\u5f62\u72b6\u4fdd\u6301\u4e00\u81f4\u3002\u63a5\u6536\u7aef\u901a\u8fc7\u5339\u914d\u672c\u5730\u751f\u6210\u7684\u5541\u557e\u4fe1\u53f7\u6765\u89e3\u7801\u63a5\u6536\u5230\u7684\u4fe1\u53f7\uff0c\u4ece\u800c\u6062\u590d\u51fa\u539f\u59cb\u6570\u636e\u3002<\/p>\n\n\n\n<p>\u3000\u3000CSS\u6280\u672f\u901a\u8fc7\u6269\u5c55\u4fe1\u53f7\u7684\u9891\u5e26\u5bbd\u5ea6\u6765\u589e\u5f3a\u6297\u5e72\u6270\u80fd\u529b\u3002\u7531\u4e8e\u4fe1\u53f7\u5728\u8f83\u5bbd\u7684\u9891\u5e26\u5185\u4f20\u64ad\uff0c\u5b83\u80fd\u591f\u6709\u6548\u62b5\u6297\u8def\u5f84\u635f\u8017\u3001\u591a\u5f84\u6548\u5e94\u548c\u5404\u79cd\u5f62\u5f0f\u7684\u5e72\u6270\u3002<\/p>\n\n\n\n<p>\u3000\u3000LoRa\u6280\u672f\u5177\u6709\u4f4e\u529f\u8017\u7684\u7279\u70b9\uff0c\u8fd9\u5f97\u76ca\u4e8e\u5176\u8f83\u4f4e\u7684\u6570\u636e\u901f\u7387\u548c\u8f83\u957f\u7684\u4f20\u8f93\u8ddd\u79bb\u3002\u8f83\u9ad8\u7684\u6269\u9891\u56e0\u5b50\u867d\u7136\u964d\u4f4e\u4e86\u6570\u636e\u901f\u7387\uff0c\u4f46\u663e\u8457\u63d0\u9ad8\u4e86\u63a5\u6536\u7075\u654f\u5ea6\u548c\u4f20\u8f93\u8ddd\u79bb\uff0c\u4f7f\u5f97LoRa\u7279\u522b\u9002\u5408\u4e8e\u9700\u8981\u957f\u8ddd\u79bb\u4f4e\u529f\u8017\u901a\u4fe1\u7684\u5e94\u7528\u573a\u666f\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e8c\u3001 LoRaWAN\u534f\u8bae\u5982\u4f55\u4f18\u5316\u7f51\u7edc\u6027\u80fd\uff0c\u5e76\u5b9e\u73b0\u96c6\u4e2d\u7ba1\u7406?<\/h2>\n\n\n\n<p>\u3000\u3000LoRaWAN\u534f\u8bae\u901a\u8fc7\u591a\u79cd\u6280\u672f\u624b\u6bb5\u4f18\u5316\u7f51\u7edc\u6027\u80fd\u5e76\u5b9e\u73b0\u96c6\u4e2d\u7ba1\u7406\u3002\u4ee5\u4e0b\u662f\u8be6\u7ec6\u7684\u89e3\u91ca\uff1a<\/p>\n\n\n\n<p>\u3000\u3000LoRaWAN\u91c7\u7528\u4e86\u81ea\u9002\u5e94\u6570\u636e\u901f\u7387(ADR)\u6280\u672f\uff0c\u8be5\u6280\u672f\u6839\u636e\u4fe1\u9053\u8d28\u91cf\u548c\u7f51\u7edc\u8d1f\u8f7d\u52a8\u6001\u8c03\u6574\u7ec8\u7aef\u8bbe\u5907\u7684\u4f20\u8f93\u901f\u7387\u3002\u8fd9\u79cd\u52a8\u6001\u8c03\u6574\u80fd\u591f\u6709\u6548\u63d0\u9ad8\u7f51\u7edc\u7684\u5e26\u5bbd\u548c\u5bb9\u91cf\uff0c\u540c\u65f6\u51cf\u5c11\u80fd\u8017\uff0c\u5ef6\u957f\u7535\u6c60\u5bff\u547d\u3002<\/p>\n\n\n\n<p>\u3000\u3000LoRaWAN\u91c7\u7528\u591a\u5c42\u5b89\u5168\u673a\u5236\u6765\u4fdd\u62a4\u7f51\u7edc\u548c\u6570\u636e\u7684\u5b89\u5168\u6027\u3002\u8fd9\u4e9b\u673a\u5236\u5305\u62ec\u7269\u7406\u5c42\u3001\u94fe\u8def\u5c42\u548c\u5e94\u7528\u5c42\u7684\u5b89\u5168\u63aa\u65bd\uff0c\u786e\u4fdd\u6570\u636e\u5728\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u7684\u5b89\u5168\u6027\u548c\u5b8c\u6574\u6027\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u5f15\u5165\u7f51\u5173\u4f5c\u4e3a\u4e2d\u592e\u4e2d\u7ee7\u53ef\u4ee5\u6539\u5584\u8fdc\u7aef\u8282\u70b9\u7684\u6027\u80fd\u3002\u901a\u8fc7\u5b9a\u671f\u8f6e\u8be2\u5df2\u52a0\u5165\u8282\u70b9\u7684\u4fe1\u606f\uff0c\u7f51\u5173\u53ef\u4ee5\u4f18\u5316\u6570\u636e\u5305\u7684\u63a5\u6536\u548c\u8f6c\u53d1\uff0c\u4ece\u800c\u63d0\u9ad8\u6574\u4f53\u7f51\u7edc\u7684\u6548\u7387\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u5229\u7528LoRa\u7684\u6355\u83b7\u6548\u5e94\uff0cLoRaWAN\u91c7\u7528\u6d41\u91cf\u6d2a\u6cdb\u534f\u8bae\u786e\u4fdd\u5728\u6bcf\u4e2a\u4e2d\u7ee7\u8df3\u4e2d\u63a5\u6536\u6700\u9ad8\u529f\u7387\u7684\u6570\u636e\u5305\u3002\u8fd9\u6709\u52a9\u4e8e\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u7684\u6210\u529f\u7387\u548c\u53ef\u9760\u6027\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u591a\u8df3MAC\u534f\u8bae\u4f7f\u7528\u65f6\u95f4\u5206\u5e27\u4fe1\u9053\u8bbf\u95ee\uff0c\u5e76\u6839\u636e\u8ddd\u79bb\u8fdc\u8fd1\u8c03\u6574\u8282\u70b9\u7684\u5e73\u5747\u7f51\u7edc\u804c\u8d23\u5468\u671f\u3002\u8fd9\u79cd\u7b56\u7565\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u7f51\u7edc\u7684\u8986\u76d6\u8303\u56f4\u548c\u6027\u80fd\uff0c\u5c24\u5176\u662f\u5728\u5e7f\u57df\u7f51\u73af\u5883\u4e2d\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u7f51\u7edc\u4eff\u771f\u548c\u5efa\u6a21\u662f\u5206\u6790LoRaWAN\u7f51\u7edc\u5bb9\u91cf\u7684\u91cd\u8981\u5de5\u5177\u3002\u901a\u8fc7\u521b\u5efa\u7f51\u7edc\u6a21\u578b\uff0c\u53ef\u4ee5\u6a21\u62df\u4e0d\u540c\u573a\u666f\u4e0b\u7684\u7f51\u7edc\u6027\u80fd\uff0c\u5e76\u8bc4\u4f30\u5404\u79cd\u4f18\u5316\u7b56\u7565\u7684\u5f71\u54cd\u3002\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u8005\u548c\u8fd0\u8425\u5546\u66f4\u597d\u5730\u7406\u89e3\u548c\u4f18\u5316\u7f51\u7edc\u6027\u80fd\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u901a\u8fc7\u8f7b\u91cf\u7ea7\u8c03\u5ea6\u548c\u65f6\u95f4-\u529f\u7387\u590d\u7528\u7b49\u65b9\u6cd5\uff0c\u53ef\u4ee5\u8fdb\u4e00\u6b65\u63d0\u9ad8\u7f51\u7edc\u5bb9\u91cf\u548c\u53ef\u6269\u5c55\u6027\u3002\u8fd9\u4e9b\u6280\u672f\u6709\u52a9\u4e8e\u66f4\u9ad8\u6548\u5730\u5229\u7528\u7f51\u7edc\u8d44\u6e90\uff0c\u63d0\u5347\u6574\u4f53\u6027\u80fd\u3002<\/p>\n\n\n\n<p>\u3000\u3000LoRaWAN\u670d\u52a1\u5668\u90e8\u7f72\u9700\u8981\u4f7f\u7528\u5f00\u6e90\u670d\u52a1\u5668\u6216\u6210\u719f\u5e73\u53f0\uff0c\u5e76\u5bfc\u5165\u7f51\u7edc\u8bbf\u95ee\u51ed\u8bc1\u4fe1\u606f\u3002\u901a\u8fc7\u96c6\u4e2d\u7ba1\u7406\uff0c\u53ef\u4ee5\u5b9e\u73b0\u5bf9\u6574\u4e2a\u7f51\u7edc\u7684\u76d1\u63a7\u3001\u6545\u969c\u8bca\u65ad\u548c\u4f18\u5316\u7b56\u7565\u7684\u5b9e\u65bd\uff0c\u4ece\u800c\u786e\u4fdd\u7f51\u7edc\u7684\u7a33\u5b9a\u6027\u548c\u6548\u7387\u3002<\/p>\n\n\n\n<p>\u3000\u3000LoRaWAN\u534f\u8bae\u901a\u8fc7\u81ea\u9002\u5e94\u6570\u636e\u901f\u7387\u3001\u591a\u5c42\u5b89\u5168\u673a\u5236\u3001\u7f51\u5173\u4e2d\u7ee7\u3001\u6d41\u91cf\u6d2a\u6cdb\u534f\u8bae\u3001\u591a\u8df3MAC\u534f\u8bae\u3001\u7f51\u7edc\u4eff\u771f\u4e0e\u5efa\u6a21\u3001\u8f7b\u91cf\u7ea7\u8c03\u5ea6\u548c\u96c6\u4e2d\u7ba1\u7406\u7b49\u591a\u79cd\u6280\u672f\u624b\u6bb5\uff0c\u5b9e\u73b0\u4e86\u7f51\u7edc\u6027\u80fd\u7684\u4f18\u5316\u548c\u96c6\u4e2d\u7ba1\u7406\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e09\u3001 \u5728LoRa\u591a\u6807\u7b7e\u901a\u4fe1\u4e2d\uff0c\u5982\u4f55\u914d\u7f6e\u4e0d\u540c\u7684\u53c2\u6570\u4ee5\u63d0\u9ad8\u4fe1\u53f7\u7684\u6297\u5e72\u6270\u6027\u548c\u4f20\u8f93\u8ddd\u79bb?<\/h2>\n\n\n\n<p>\u3000\u3000\u5728LoRa\u591a\u6807\u7b7e\u901a\u4fe1\u4e2d\uff0c\u4e3a\u4e86\u63d0\u9ad8\u4fe1\u53f7\u7684\u6297\u5e72\u6270\u6027\u548c\u4f20\u8f93\u8ddd\u79bb\uff0c\u53ef\u4ee5\u91c7\u53d6\u4ee5\u4e0b\u51e0\u79cd\u914d\u7f6e\u4e0d\u540c\u7684\u53c2\u6570\u7684\u65b9\u6cd5\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u589e\u52a0\u53d1\u5c04\u529f\u7387\uff08PT\u503c\uff09<\/strong>\uff1a\u901a\u8fc7\u589e\u5927\u53d1\u9001\u7aef(\u8282\u70b9)\u7684\u53d1\u5c04\u529f\u7387\uff0c\u53ef\u4ee5\u663e\u8457\u63d0\u5347\u4fe1\u53f7\u7684\u4f20\u8f93\u8ddd\u79bb\u3002\u8fd9\u662f\u56e0\u4e3a\u66f4\u5927\u7684\u53d1\u5c04\u529f\u7387\u80fd\u591f\u4f7f\u4fe1\u53f7\u8986\u76d6\u66f4\u8fdc\u7684\u8ddd\u79bb\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u51cf\u5c11\u63a5\u6536\u7075\u654f\u5ea6\uff08pr\u503c\uff09<\/strong>\uff1a\u5728\u63a5\u6536\u7aef(\u7f51\u5173\u7aef)\uff0c\u51cf\u5c0fpr\u503c\u5373\u51cf\u5c11\u63a5\u6536\u7075\u654f\u5ea6\uff0c\u4e5f\u53ef\u4ee5\u83b7\u5f97\u66f4\u8fdc\u7684\u4f20\u8f93\u8ddd\u79bb\u3002\u8fd9\u53ef\u4ee5\u901a\u8fc7\u4f18\u5316\u8f6f\u4ef6\u8bbe\u7f6e\u548c\u7b97\u6cd5\u6765\u5b9e\u73b0\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u9009\u62e9\u5408\u9002\u7684\u957f\u7801\u957f\u5ea6\uff08SF\uff09<\/strong>\uff1a\u957f\u7801\u957f\u5ea6( spreading factor, SF)\u662f\u5f71\u54cdLoRa\u6297\u5e72\u6270\u80fd\u529b\u7684\u91cd\u8981\u53c2\u6570\u4e4b\u4e00\u3002\u8f83\u957f\u7684SF\u503c\u53ef\u4ee5\u63d0\u4f9b\u66f4\u597d\u7684\u6297\u5e72\u6270\u6027\u80fd\uff0c\u4f46\u540c\u65f6\u4f1a\u964d\u4f4e\u6570\u636e\u901f\u7387\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u9891\u8c31\u6269\u9891\u6280\u672f<\/strong>\uff1a\u91c7\u7528\u7ebf\u6027\u8c03\u9891\u6269\u9891(Chirp Spread Spectrum)\u8c03\u5236\u65b9\u5f0f\uff0c\u5c06\u4fe1\u53f7\u6269\u5c55\u5230\u8f83\u5bbd\u7684\u9891\u5e26\u4e0a\uff0c\u4ece\u800c\u63d0\u9ad8\u4fe1\u53f7\u7684\u6297\u5e72\u6270\u6027\u548c\u4f20\u8f93\u8ddd\u79bb\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u4fe1\u9053\u9009\u62e9\u548c\u9891\u7387\u89c4\u5212<\/strong>\uff1a\u5408\u7406\u9009\u62e9\u4fe1\u9053\u548c\u9891\u7387\u89c4\u5212\uff0c\u907f\u514d\u4fe1\u9053\u62e5\u5835\u548c\u5e72\u6270\uff0c\u53ef\u4ee5\u6709\u6548\u63d0\u5347\u901a\u4fe1\u8d28\u91cf\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u524d\u5411\u7ea0\u9519\u7f16\u7801<\/strong>\uff1a\u4f7f\u7528\u524d\u5411\u7ea0\u9519\u7f16\u7801(FEC)\u6280\u672f\u53ef\u4ee5\u63d0\u9ad8\u6570\u636e\u5305\u7684\u53ef\u9760\u6027\u548c\u5bb9\u9519\u6027\uff0c\u51cf\u5c11\u6570\u636e\u5305\u4e22\u5931\u548c\u91cd\u4f20\uff0c\u4ece\u800c\u63d0\u5347\u4f20\u8f93\u8ddd\u79bb\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u4f18\u5316\u7f51\u7edc\u62d3\u6251\u7ed3\u6784<\/strong>\uff1a\u5408\u7406\u8bbe\u8ba1\u548c\u4f18\u5316LoRa\u7f51\u7edc\u7684\u62d3\u6251\u7ed3\u6784\uff0c\u51cf\u5c11\u4fe1\u53f7\u4f20\u8f93\u7684\u8ddd\u79bb\u548c\u5e72\u6270\uff0c\u53ef\u4ee5\u63d0\u5347\u4fe1\u53f7\u7684\u4f20\u8f93\u6548\u679c\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u7535\u6e90\u7ba1\u7406<\/strong>\uff1a\u786e\u4fddLoRa\u6a21\u5757\u6709\u7a33\u5b9a\u7684\u4f9b\u7535\u548c\u5408\u9002\u7684\u7535\u6e90\u7ba1\u7406\uff0c\u907f\u514d\u56e0\u529f\u8017\u4e0d\u8db3\u6216\u7535\u6e90\u4e0d\u7a33\u5b9a\u5bfc\u81f4\u7684\u5e72\u6270\u548c\u901a\u4fe1\u4e2d\u65ad\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u56db\u3001 LoRa\u8282\u70b9\u4e4b\u95f4\u7684\u901a\u4fe1\u51b2\u7a81\u5982\u4f55\u89e3\u51b3<\/h2>\n\n\n\n<p>\u3000\u3000LoRa\u8282\u70b9\u4e4b\u95f4\u7684\u901a\u4fe1\u51b2\u7a81\u4e3b\u8981\u901a\u8fc7\u591a\u79cd\u7b56\u7565\u6765\u89e3\u51b3\uff0c\u4ee5\u786e\u4fdd\u901a\u4fe1\u7684\u7a33\u5b9a\u6027\u3002\u8fd9\u4e9b\u7b56\u7565\u5305\u62ec\u9891\u7387\u89c4\u5212\u3001\u4fe1\u9053\u68c0\u6d4b\u4e0e\u91cd\u53d1\u673a\u5236\u3001\u6297\u5e72\u6270\u80fd\u529b\u3001\u4fe1\u53f7\u5904\u7406\u4e0e\u7f16\u7801\u3001\u968f\u673a\u63a5\u5165\u4e0e\u78b0\u649e\u68c0\u6d4b\u4ee5\u53ca\u4fe1\u9053\u5360\u7528\u68c0\u6d4b\u7b49\u624b\u6bb5\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u9891\u7387\u89c4\u5212<\/strong>\uff1a\u901a\u8fc7\u5408\u7406\u5206\u914d\u4fe1\u9053\u9891\u7387\uff0c\u907f\u514d\u591a\u4e2a\u8282\u70b9\u5728\u540c\u4e00\u65f6\u95f4\u4f7f\u7528\u76f8\u540c\u4fe1\u9053\uff0c\u4ece\u800c\u51cf\u5c11\u51b2\u7a81\u7684\u53d1\u751f\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u4fe1\u9053\u68c0\u6d4b\u4e0e\u91cd\u53d1\u673a\u5236<\/strong>\uff1a\u5728\u53d1\u9001\u6570\u636e\u524d\uff0c\u8282\u70b9\u4f1a\u8fdb\u884c\u4fe1\u9053\u76d1\u542c(Listen Before Talk, LBT)\uff0c\u5982\u679c\u68c0\u6d4b\u5230\u4fe1\u9053\u88ab\u5360\u7528\uff0c\u5219\u5ef6\u8fdf\u4e00\u6bb5\u65f6\u95f4\u540e\u518d\u6b21\u5c1d\u8bd5\u53d1\u9001\u6570\u636e\u3002\u8fd9\u79cd\u673a\u5236\u53ef\u4ee5\u6709\u6548\u964d\u4f4e\u51b2\u7a81\u7684\u6982\u7387\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u6297\u5e72\u6270\u80fd\u529b<\/strong>\uff1aLoRa\u6280\u672f\u5177\u6709\u8f83\u5f3a\u7684\u6297\u5e72\u6270\u80fd\u529b\uff0c\u53ef\u4ee5\u901a\u8fc7\u4f18\u5316\u4fe1\u53f7\u5904\u7406\u548c\u7f16\u7801\u65b9\u5f0f\u6765\u63d0\u9ad8\u7cfb\u7edf\u7684\u9c81\u68d2\u6027\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u4fe1\u53f7\u5904\u7406\u4e0e\u7f16\u7801<\/strong>\uff1aLoRa\u91c7\u7528\u6269\u9891\u8c03\u5236\u6280\u672f(Chirp Spread Spectrum, CSS)\uff0c\u8fd9\u79cd\u6280\u672f\u53ef\u4ee5\u5728\u4e0d\u540c\u7684\u4fe1\u566a\u6bd4\u4e0b\u5b9e\u73b0\u53ef\u9760\u901a\u4fe1\uff0c\u5e76\u4e14\u901a\u8fc7\u524d\u5411\u7ea0\u9519(Forward Error Correction)\u8fdb\u4e00\u6b65\u589e\u5f3a\u901a\u4fe1\u7684\u53ef\u9760\u6027\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u968f\u673a\u63a5\u5165\u4e0e\u78b0\u649e\u68c0\u6d4b<\/strong>\uff1a\u8282\u70b9\u5728\u9009\u62e9\u4fe1\u9053\u548c\u53d1\u9001\u5468\u671f\u65f6\u52a0\u5165\u968f\u673a\u503c\uff0c\u8fd9\u6837\u53ef\u4ee5\u51cf\u5c11\u540c\u65f6\u53d1\u9001\u6570\u636e\u7684\u51e0\u7387\uff0c\u4ece\u800c\u964d\u4f4e\u51b2\u7a81\u7684\u53ef\u80fd\u6027\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u4fe1\u9053\u5360\u7528\u68c0\u6d4b<\/strong>\uff1a\u901a\u8fc7\u5b9e\u65f6\u76d1\u6d4b\u4fe1\u9053\u7684\u5360\u7528\u60c5\u51b5\uff0c\u53ca\u65f6\u8c03\u6574\u8282\u70b9\u7684\u901a\u4fe1\u7b56\u7565\uff0c\u907f\u514d\u5728\u9ad8\u8d1f\u8f7d\u65f6\u6bb5\u8fdb\u884c\u6570\u636e\u4f20\u8f93\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u5e76\u53d1\u5e72\u6270\u6d88\u9664\uff08Concurrent Interference Cancellation, CIC\uff09<\/strong>\uff1a\u8fd9\u662f\u4e00\u79cd\u65b0\u7684\u5e72\u6270\u6d88\u9664\u6280\u672f\uff0c\u80fd\u591f\u540c\u65f6\u89e3\u7801\u591a\u4e2a\u76f8\u4e92\u51b2\u7a81\u7684LoRa\u5305\uff0c\u4ece\u6839\u672c\u4e0a\u89e3\u51b3\u4e86\u4f20\u7edf\u65b9\u6cd5\u65e0\u6cd5\u5145\u5206\u5229\u7528LoRa\u7f16\u7801\u7279\u6027\u7684\u7f3a\u9677\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u8c03\u5ea6\u7b97\u6cd5<\/strong>\uff1a\u5728\u7f51\u7edc\u5c42\u9762\u4e0a\u5bf9\u6570\u636e\u8fdb\u884c\u5206\u7ec4\u548c\u8c03\u5ea6\uff0c\u907f\u514d\u65f6\u9699\u51b2\u7a81\u3002\u901a\u8fc7\u5bf9\u4e0d\u540c\u8282\u70b9\u7684\u901a\u4fe1\u8bf7\u6c42\u8fdb\u884c\u8c03\u5ea6\u5b89\u6392\uff0c\u53ef\u4ee5\u6709\u6548\u51cf\u5c11\u51b2\u7a81\u7684\u53d1\u751f\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e94\u3001 \u5bf9\u4e8e\u5927\u89c4\u6a21LoRa\u5e94\u7528\u573a\u666f\uff0c\u6709\u54ea\u4e9b\u7279\u5b9a\u7684\u7f51\u7edc\u67b6\u6784\u8bbe\u8ba1\u548c\u8282\u70b9\u7ba1\u7406\u7b56\u7565<\/h2>\n\n\n\n<p>\u3000\u3000\u5bf9\u4e8e\u5927\u89c4\u6a21LoRa\u5e94\u7528\u573a\u666f\uff0c\u63a8\u8350\u7684\u7f51\u7edc\u67b6\u6784\u8bbe\u8ba1\u548c\u8282\u70b9\u7ba1\u7406\u7b56\u7565\u5982\u4e0b\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30001. \u7f51\u7edc\u67b6\u6784\u8bbe\u8ba1<\/h3>\n\n\n\n<p>\u3000\u3000LoRaWAN\u91c7\u7528\u661f\u578b\u65e0\u7ebf\u62d3\u6251\uff0c\u5305\u62ecEnd Nodes(\u7ec8\u7aef\u8282\u70b9)\u3001Gateway(\u7f51\u5173)\u3001Network Server(\u7f51\u7edc\u670d\u52a1\u5668)\u548cApplication Server(\u5e94\u7528\u670d\u52a1\u5668)\u3002\u8fd9\u79cd\u7ed3\u6784\u786e\u4fdd\u4e86\u4f4e\u529f\u8017\u3001\u53ef\u6269\u5c55\u6027\u548c\u9ad8\u670d\u52a1\u8d28\u91cf\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u901a\u8fc7\u6811\u5f62\u4e2d\u7ee7\u8282\u70b9\u7684\u52a0\u5165\uff0c\u53ef\u4ee5\u6269\u5c55\u65e0\u7ebf\u7cfb\u7edf\u7684\u6284\u8bfb\u8303\u56f4\uff0c\u6700\u591a\u53ef\u8fbe3000\u4e2a\u8282\u70b9\u3002\u8fd9\u79cd\u81ea\u7ec4\u7f51\u534f\u8bae\u63d0\u4f9b\u4e86\u4e00\u79cd\u91c7\u7528\u6e90\u8def\u7531\u673a\u5236\u7684LoRa\u6811\u5f62\u7ec4\u7f51\u65b9\u6848\uff0c\u7b80\u5316\u4e86\u7ec4\u7f51\u8fc7\u7a0b\u5e76\u964d\u4f4e\u4e86\u5ba2\u6237\u5f00\u53d1\u6210\u672c\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u5728\u6bcf\u4e2a\u652f\u8def\u4e0a\u81f3\u5c11\u8bbe\u6709\u4e00\u7ea7\u8282\u70b9\uff0c\u7b2c\u4e00\u7ea7\u8282\u70b9\u4e0e\u7f51\u5173\u76f4\u8fde\uff0c\u4e0b\u4e00\u7ea7\u8282\u70b9\u5219\u901a\u8fc7\u4e0e\u7f51\u5173\u517c\u5bb9\u7684\u62a5\u6587\u8fde\u63a5\u3002\u8fd9\u79cd\u6811\u72b6\u7ed3\u6784\u6709\u52a9\u4e8e\u89e3\u51b3LoRa Gateway\u4fe1\u53f7\u8986\u76d6\u8303\u56f4\u53d7\u9650\u7684\u95ee\u9898\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u4f7f\u7528\u591a\u6280\u672f\u7f51\u7edc\u6765\u63d0\u9ad8\u5f02\u6784\u7269\u8054\u7f51\u5e94\u7528\u7a0b\u5e8f\u6027\u80fd\uff0c\u4f8b\u5982LoRaWAN\u548cNB-IoT\u8282\u70b9\u7684\u53cc\u6280\u672f\u539f\u578b\uff0c\u4ee5\u53ca\u57fa\u4e8e\u591a\u6a21\u6001\u8282\u70b9\u7684\u7f51\u7edc\u67b6\u6784\u7b49\u3002\u8fd9\u53ef\u4ee5\u63d0\u5347\u6574\u4f53\u7f51\u7edc\u7684\u53ef\u9760\u6027\u548c\u5bb9\u91cf\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30002. \u8282\u70b9\u7ba1\u7406\u7b56\u7565<\/h3>\n\n\n\n<p>\u3000\u3000LoRa\u652f\u6301\u4e09\u79cd\u8282\u70b9\u7c7b\u522b\uff1aClass A\u3001Class B\u548cClass C\u3002\u5176\u4e2d\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000Class A\uff1a\u9002\u7528\u4e8e\u5927\u591a\u6570\u6807\u51c6\u5e94\u7528\uff0c\u5177\u6709\u4f4e\u529f\u8017\u7684\u7279\u70b9\u3002<\/li>\n\n\n\n<li>\u3000\u3000Class B\uff1a\u589e\u52a0\u4e86\u5bf9\u6765\u81ea\u57fa\u7ad9\u547d\u4ee4\u548c\u6d88\u606f\u7684\u53cd\u5e94\u6027\uff0c\u5141\u8bb8\u66f4\u591a\u7684\u63a5\u6536\u63d2\u69fd\u3002<\/li>\n\n\n\n<li>\u3000\u3000Class C\uff1a\u63a5\u6536\u63d2\u69fd\u6700\u5927\u5316\uff0c\u63d0\u4f9b\u6700\u4f4e\u5ef6\u8fdf\u4f46\u6d88\u8017\u66f4\u591a\u80fd\u6e90\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000\u5728\u591a\u6e90\u591a\u4e2d\u7ee7\u7684\u4e24\u8df3\u534f\u4f5c\u901a\u4fe1\u7f51\u7edc\u4e2d\uff0c\u53ef\u4ee5\u91c7\u7528\u57fa\u4e8e\u8f6e\u8be2\u5206\u7ec4\u8c03\u5ea6\u7b97\u6cd5\u7684\u8282\u70b9\u9009\u62e9\u4e0e\u7528\u6237\u8c03\u5ea6\u7b56\u7565\u3002\u8fd9\u79cd\u7b56\u7565\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u8282\u70b9\u95f4\u7684\u901a\u4fe1\uff0c\u786e\u4fdd\u6bcf\u4e2a\u8282\u70b9\u90fd\u80fd\u516c\u5e73\u5730\u53c2\u4e0e\u901a\u4fe1\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u96c6\u4e2d\u5668\u6a21\u7ec4\u96c6\u6210\u7ec4\u7f51\u3001\u8def\u5f84\u4f18\u5316\u3001\u8bbe\u5907\u70b9\u6284\u548c\u767d\u540d\u5355\u529f\u80fd\uff0c\u5f00\u653e\u5bf9\u5e94\u63a5\u53e3\uff0c\u6781\u5927\u964d\u4f4e\u5ba2\u6237\u5f00\u53d1\u6210\u672c\u3002\u8fd9\u4e9b\u529f\u80fd\u6709\u52a9\u4e8e\u7b80\u5316\u7f51\u7edc\u7ba1\u7406\u548c\u7ef4\u62a4\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>LoRa(Long Range)\u662f\u4e00\u79cd\u4f4e\u529f\u8017\u3001\u8fdc\u8ddd\u79bb\u7684\u65e0\u7ebf\u901a\u4fe1\u6280\u672f\uff0c\u5e7f\u6cdb\u5e94\u7528\u4e8e\u7269\u8054\u7f51\u9886\u57df\u3002\u5176\u4e3b\u8981\u7279\u70b9\u5305\u62ec\u957f\u8ddd\u79bb\u4f20\u8f93\u548c\u4f4e\u529f\u8017\u8bbe\u8ba1\uff0c\u9002\u7528\u4e8e\u5404\u79cd\u9700\u8981\u8fdc\u7a0b\u6570\u636e\u4f20\u8f93\u7684\u5e94\u7528\u573a\u666f<\/p>\n","protected":false},"author":1,"featured_media":94288,"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-96238","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-l-2"],"_links":{"self":[{"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/posts\/96238"}],"collection":[{"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/comments?post=96238"}],"version-history":[{"count":0,"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/posts\/96238\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/media\/94288"}],"wp:attachment":[{"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/media?parent=96238"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/categories?post=96238"},{"taxonomy":"post_tag","embeddable":true,"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/tags?post=96238"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}