{"id":100255,"date":"2025-01-07T14:47:42","date_gmt":"2025-01-07T06:47:42","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=100255"},"modified":"2025-01-07T14:47:46","modified_gmt":"2025-01-07T06:47:46","slug":"lwxsfmkgzyl","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/100255.html","title":{"rendered":"LoRa\u65e0\u7ebf\u6536\u53d1\u6a21\u5757\u5de5\u4f5c\u539f\u7406"},"content":{"rendered":"\n<p>\u3000\u3000<strong>LoRa\u65e0\u7ebf\u6536\u53d1\u6a21\u5757<\/strong>\u7684\u5de5\u4f5c\u539f\u7406\u4e3b\u8981\u57fa\u4e8eChirp Spread Spectrum(CSS)\u6269\u9891\u8c03\u5236\u6280\u672f\uff0c\u5176\u6838\u5fc3\u7279\u70b9\u5305\u62ec\u4f4e\u529f\u8017\u3001\u8fdc\u8ddd\u79bb\u4f20\u8f93\u548c\u9ad8\u6297\u5e72\u6270\u80fd\u529b\u3002\u4ee5\u4e0b\u662f\u8be6\u7ec6\u7684\u5de5\u4f5c\u539f\u7406\uff1a<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u6570\u636e\u53d1\u9001\u8fc7\u7a0b<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u6570\u636e\u7f16\u7801\u4e0e\u8c03\u5236<\/strong>\uff1a\u9996\u5148\uff0c\u53d1\u9001\u7aef\u7684\u5fae\u63a7\u5236\u5668\u5c06\u9700\u8981\u4f20\u8f93\u7684\u6570\u636e\u6309\u7167\u4e00\u5b9a\u7684\u89c4\u5219\u8fdb\u884c\u7f16\u7801\u3002\u7f16\u7801\u540e\u7684\u6570\u636e\u901a\u8fc7\u5c04\u9891\u82af\u7247\u8fdb\u884c\u6269\u9891\u8c03\u5236\uff0c\u751f\u6210\u9891\u7387\u968f\u65f6\u95f4\u7ebf\u6027\u53d8\u5316\u7684\u4fe1\u53f7(\u5373\u201c\u5541\u557e\u201d\u4fe1\u53f7)\uff0c\u8fd9\u79cd\u4fe1\u53f7\u5177\u6709\u8f83\u5f3a\u7684\u6297\u5e72\u6270\u80fd\u529b\u548c\u8f83\u9ad8\u7684\u9891\u7387\u5e26\u5bbd\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u4fe1\u53f7\u53d1\u5c04<\/strong>\uff1a\u6269\u9891\u540e\u7684\u4fe1\u53f7\u901a\u8fc7\u5929\u7ebf\u53d1\u9001\u51fa\u53bb\u3002\u7531\u4e8eCSS\u6280\u672f\u7684\u4f7f\u7528\uff0c\u4fe1\u53f7\u53ef\u4ee5\u5728\u8f83\u5bbd\u7684\u9891\u5e26\u4e0a\u8fdb\u884c\u4f20\u8f93\uff0c\u4ece\u800c\u5b9e\u73b0\u8fdc\u8ddd\u79bb\u901a\u4fe1\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000<strong>\u6570\u636e\u63a5\u6536\u8fc7\u7a0b<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u4fe1\u53f7\u63a5\u6536<\/strong>\uff1a\u63a5\u6536\u7aef\u7684LoRa\u6a21\u5757\u901a\u8fc7\u5176\u5929\u7ebf\u6355\u6349\u5230\u7a7a\u4e2d\u4f20\u8f93\u7684\u4fe1\u53f7\u3002\u8fd9\u4e9b\u4fe1\u53f7\u7ecf\u8fc7\u5c04\u9891\u82af\u7247\u7684\u89e3\u8c03\u5904\u7406\uff0c\u5c06\u4fe1\u53f7\u8fd8\u539f\u4e3a\u539f\u59cb\u7684\u6570\u5b57\u6570\u636e\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u6570\u636e\u89e3\u7801<\/strong>\uff1a\u63a5\u6536\u5230\u7684\u6570\u5b57\u6570\u636e\u7ecf\u8fc7\u89e3\u7801\u5904\u7406\uff0c\u6062\u590d\u6210\u539f\u59cb\u7684\u6570\u636e\u5305\u3002\u89e3\u7801\u8fc7\u7a0b\u4f9d\u8d56\u4e8eCSS\u6280\u672f\uff0c\u786e\u4fdd\u6570\u636e\u7684\u51c6\u786e\u6027\u548c\u5b8c\u6574\u6027\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000<strong>\u4f4e\u529f\u8017\u7279\u6027<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000LoRa\u6a21\u5757\u5728\u63a5\u6536\u72b6\u6001\u4e0b\u5177\u6709\u6781\u4f4e\u7684\u529f\u8017\uff0c\u975e\u5e38\u9002\u5408\u4e8e\u7535\u6c60\u4f9b\u7535\u7684\u5e94\u7528\u573a\u666f\u3002\u8fd9\u4e00\u7279\u6027\u4f7f\u5f97LoRa\u6a21\u5757\u7279\u522b\u9002\u7528\u4e8e\u7269\u8054\u7f51(IoT)\u8bbe\u5907\u4e2d\u7684\u957f\u671f\u8fd0\u884c\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000<strong>\u6297\u5e72\u6270\u80fd\u529b<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000LoRa\u6280\u672f\u901a\u8fc7\u6269\u9891\u8c03\u5236\u548c\u591a\u4fe1\u9053\u4f20\u8f93\uff0c\u80fd\u591f\u6709\u6548\u62b5\u6297\u5404\u79cd\u5e72\u6270\uff0c\u5305\u62ec\u540c\u9891\u5e72\u6270\u548c\u591a\u5f84\u6548\u5e94\u3002\u8fd9\u4f7f\u5f97LoRa\u6a21\u5757\u5728\u590d\u6742\u7684\u7535\u78c1\u73af\u5883\u4e2d\u4f9d\u7136\u80fd\u591f\u7a33\u5b9a\u5de5\u4f5c\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000<strong>\u4e00\u6536\u591a\u53d1\u529f\u80fd<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000LoRa\u6a21\u5757\u652f\u6301\u4e00\u6536\u591a\u53d1\u529f\u80fd\uff0c\u5373\u4e00\u4e2a\u63a5\u6536\u7aef\u53ef\u4ee5\u540c\u65f6\u63a5\u6536\u591a\u4e2a\u53d1\u9001\u7aef\u7684\u6570\u636e\u3002\u8fd9\u662f\u901a\u8fc7\u9891\u7387\u590d\u7528\u548c\u78b0\u649e\u68c0\u6d4b\u673a\u5236\u5b9e\u73b0\u7684\uff0c\u6bcf\u4e2a\u8bbe\u5907\u5728\u4e0d\u540c\u7684\u9891\u7387\u4fe1\u9053\u4e0a\u53d1\u9001\u6570\u636e\uff0c\u4ece\u800c\u907f\u514d\u4e86\u4fe1\u53f7\u51b2\u7a81\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000LoRa\u65e0\u7ebf\u6536\u53d1\u6a21\u5757\u901a\u8fc7\u6269\u9891\u8c03\u5236\u6280\u672f\u5b9e\u73b0\u4e86\u8fdc\u8ddd\u79bb\u3001\u4f4e\u529f\u8017\u548c\u9ad8\u6297\u5e72\u6270\u80fd\u529b\u7684\u6570\u636e\u4f20\u8f93\uff0c\u5e7f\u6cdb\u5e94\u7528\u4e8e\u7269\u8054\u7f51\u3001\u667a\u80fd\u519c\u4e1a\u3001\u667a\u80fd\u5bb6\u5c45\u7b49\u9886\u57df\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e00\u3001 LoRa\u65e0\u7ebf\u6536\u53d1\u6a21\u5757\u6280\u672f\u539f\u7406<\/h2>\n\n\n\n<p>\u3000\u3000LoRa\u65e0\u7ebf\u6536\u53d1\u6a21\u5757\u7684Chirp Spread Spectrum(CSS)\u6269\u9891\u8c03\u5236\u6280\u672f\u662f\u4e00\u79cd\u57fa\u4e8e\u7ebf\u6027\u8c03\u9891\u8109\u51b2(chirp)\u7684\u6269\u9891\u8c03\u5236\u65b9\u6cd5\u3002\u5176\u6838\u5fc3\u5728\u4e8e\u901a\u8fc7\u5728\u9891\u7387\u8303\u56f4\u5185\u7ebf\u6027\u6539\u53d8\u4fe1\u53f7\u9891\u7387\u6765\u6269\u5c55\u4fe1\u53f7\uff0c\u4ece\u800c\u63d0\u9ad8\u5bf9\u5e72\u6270\u7684\u62b5\u6297\u6027\u548c\u901a\u4fe1\u8ddd\u79bb\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u5177\u4f53\u6765\u8bf4\uff0cCSS\u6280\u672f\u5229\u7528\u4e86\u7ebf\u6027\u8c03\u9891\u8109\u51b2(chirp)\uff0c\u8fd9\u79cd\u8109\u51b2\u7684\u9891\u7387\u968f\u65f6\u95f4\u7ebf\u6027\u589e\u52a0\u6216\u51cf\u5c11\u3002\u5f53\u9891\u7387\u589e\u52a0\u65f6\u79f0\u4e3a\u4e0a\u884cchirp;\u5f53\u9891\u7387\u51cf\u5c11\u65f6\u79f0\u4e3a\u4e0b\u884cchirp\u3002\u5728LoRa\u7cfb\u7edf\u4e2d\uff0c\u8fd9\u4e9bchirp\u4fe1\u53f7\u88ab\u7528\u6765\u4f20\u8f93\u6570\u636e\u3002\u6bcf\u4e2achirp\u4fe1\u53f7\u5360\u636e\u4e00\u4e2a\u7279\u5b9a\u7684\u5e26\u5bbd\uff0c\u5e76\u4e14\u5728\u7b26\u53f7\u5185\u8fdb\u884c\u9891\u7387\u53d8\u5316\u4ee5\u7f16\u7801\u4fe1\u606f\u3002<\/p>\n\n\n\n<p>\u3000\u3000CSS\u6280\u672f\u901a\u8fc7\u6539\u53d8\u4fe1\u53f7\u9891\u7387\u6765\u4f20\u8f93\u4fe1\u606f\uff0c\u9891\u7387\u7684\u53d8\u5316\u901f\u7387\u5373\u4e3a\u6269\u9891\u56e0\u5b50(Spreading Factor, SF)\u3002\u6269\u9891\u56e0\u5b50\u8d8a\u5927\uff0c\u4f20\u8f93\u8ddd\u79bb\u8d8a\u8fdc\uff0c\u4f46\u6570\u636e\u901f\u7387\u8d8a\u4f4e\u3002\u8fd9\u79cd\u8bbe\u8ba1\u4f7f\u5f97LoRa\u80fd\u591f\u5728\u4fdd\u6301\u4f4e\u529f\u8017\u7684\u540c\u65f6\u5b9e\u73b0\u8f83\u8fdc\u8ddd\u79bb\u7684\u65e0\u7ebf\u901a\u4fe1\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u6b64\u5916\uff0cCSS\u6280\u672f\u8fd8\u7ed3\u5408\u4e86\u5085\u91cc\u53f6\u53d8\u6362(FFT)\u8fdb\u884c\u89e3\u8c03\u3002\u63a5\u6536\u7aef\u901a\u8fc7\u53bb\u9664chirp\u4fe1\u53f7\u5e76\u4fdd\u6301\u6052\u5b9a\u9891\u7387\uff0c\u5229\u7528FFT\u8bc6\u522b\u51fa\u8c03\u5236\u7684\u7b26\u53f7\u3002FFT bins\u7684\u6570\u91cf\u5bf9\u5e94\u4e8e\u91c7\u6837\u70b9\uff0c\u5cf0\u503c\u5373\u4e3a\u8c03\u5236\u7684\u7b26\u53f7\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e8c\u3001 LoRa\u65e0\u7ebf\u6536\u53d1\u6a21\u5757\u5728\u7269\u8054\u7f51(IoT)\u5e94\u7528\u4e2d\u7684\u4f4e\u529f\u8017\u7279\u6027\u662f\u5982\u4f55\u5b9e\u73b0\u7684?<\/h2>\n\n\n\n<p>\u3000\u3000LoRa\u65e0\u7ebf\u6536\u53d1\u6a21\u5757\u5728\u7269\u8054\u7f51(IoT)\u5e94\u7528\u4e2d\u7684<strong>\u4f4e\u529f\u8017\u7279\u6027<\/strong>\uff0c\u5f97\u76ca\u4e8e\u5176\u6280\u672f\u8bbe\u8ba1\u548c\u534f\u8bae\u4f18\u5316\u3002\u4ee5\u4e0b\u4ece<strong>\u786c\u4ef6\u8bbe\u8ba1<\/strong>\u3001<strong>\u901a\u4fe1\u6280\u672f<\/strong>\u3001<strong>\u534f\u8bae\u4f18\u5316<\/strong>\u7b49\u89d2\u5ea6\u8be6\u7ec6\u89e3\u6790LoRa\u6a21\u5757\u5982\u4f55\u5b9e\u73b0\u4f4e\u529f\u8017\u7279\u6027\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u3000<strong>1. LoRa\u8c03\u5236\u6280\u672f\u7684\u4f18\u52bf<\/strong><\/h3>\n\n\n\n<p>\u3000\u3000LoRa(Long Range)\u662f\u4e00\u79cd\u57fa\u4e8e&nbsp;<strong>CSS\uff08Chirp Spread Spectrum\uff0c\u7ebf\u6027\u8c03\u9891\u6269\u9891\uff09<\/strong>&nbsp;\u7684\u8c03\u5236\u6280\u672f\uff0c\u5176\u8bbe\u8ba1\u672c\u8eab\u975e\u5e38\u6ce8\u91cd\u4f4e\u529f\u8017\u548c\u8fdc\u8ddd\u79bb\u901a\u4fe1\u7684\u5e73\u8861\u3002\u4ee5\u4e0b\u662f\u5176\u5728\u4f4e\u529f\u8017\u65b9\u9762\u7684\u6280\u672f\u4f18\u52bf\uff1a<\/p>\n\n\n\n<p>\u3000\u3000<strong>(1) \u9ad8\u7075\u654f\u5ea6\u63a5\u6536<\/strong><\/p>\n\n\n\n<p>\u3000\u3000LoRa\u6a21\u5757\u901a\u8fc7CSS\u6269\u9891\u6280\u672f\u5b9e\u73b0\u4e86\u63a5\u6536\u7aef\u7684<strong>\u8d85\u9ad8\u7075\u654f\u5ea6<\/strong>(\u901a\u5e38\u53ef\u4ee5\u8fbe\u5230 -137 dBm \u6216\u66f4\u4f4e)\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u9ad8\u7075\u654f\u5ea6\u610f\u5473\u7740\u5373\u4f7f\u53d1\u5c04\u529f\u7387\u6781\u4f4e\uff0c\u4fe1\u53f7\u4e5f\u53ef\u4ee5\u88ab\u53ef\u9760\u63a5\u6536\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u4f4e\u529f\u8017\u5f71\u54cd<\/strong>\uff1a\u5728\u53d1\u9001\u7aef\u53ef\u4ee5\u5927\u5e45\u964d\u4f4e\u53d1\u5c04\u529f\u7387\uff0c\u4ece\u800c\u51cf\u5c11\u8017\u7535\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>(2) \u52a8\u6001\u8c03\u6574\u901a\u4fe1\u901f\u7387<\/strong><\/p>\n\n\n\n<p>\u3000\u3000LoRa\u652f\u6301<strong>\u53ef\u53d8\u7684\u4f20\u8f93\u901f\u7387\uff08Spreading Factor, SF\uff09<\/strong>\uff0c\u4eceSF6\u5230SF12.SF\u503c\u8d8a\u9ad8\uff0c\u4f20\u8f93\u8ddd\u79bb\u8d8a\u957f\uff0c\u4f46\u901f\u7387\u8d8a\u4f4e\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0cLoRa\u6a21\u5757\u4f1a\u6839\u636e\u4fe1\u9053\u6761\u4ef6\u52a8\u6001\u8c03\u6574SF\u503c\uff0c\u4f18\u5316\u529f\u8017\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u4f4e\u529f\u8017\u5f71\u54cd<\/strong>\uff1a\u77ed\u8ddd\u79bb\u901a\u4fe1\u65f6\u53ef\u9009\u62e9\u8f83\u4f4eSF\u503c\uff0c\u63d0\u9ad8\u901f\u7387\u5e76\u51cf\u5c11\u53d1\u5c04\u65f6\u95f4\uff0c\u4ece\u800c\u964d\u4f4e\u529f\u8017\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>(3) \u7a84\u5e26\u901a\u4fe1<\/strong><\/p>\n\n\n\n<p>\u3000\u3000LoRa\u91c7\u7528\u8f83\u4f4e\u7684\u5e26\u5bbd(\u901a\u5e38125 kHz\u6216\u66f4\u7a84)\uff0c\u907f\u514d\u4e86\u5bbd\u5e26\u901a\u4fe1\u9020\u6210\u7684\u9ad8\u529f\u8017\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u4f4e\u529f\u8017\u5f71\u54cd<\/strong>\uff1a\u7a84\u5e26\u901a\u4fe1\u672c\u8d28\u4e0a\u964d\u4f4e\u4e86\u4fe1\u53f7\u5904\u7406\u7684\u590d\u6742\u5ea6\u548c\u529f\u8017\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u3000<strong>2. \u786c\u4ef6\u8bbe\u8ba1\u7684\u4f4e\u529f\u8017\u4f18\u5316<\/strong><\/h3>\n\n\n\n<p>\u3000\u3000LoRa\u65e0\u7ebf\u6536\u53d1\u6a21\u5757(\u4f8b\u5982 Semtech \u7684 SX1276\/1278 \u7cfb\u5217)\u5728\u786c\u4ef6\u8bbe\u8ba1\u4e0a\u5bf9\u529f\u8017\u8fdb\u884c\u4e86\u591a\u91cd\u4f18\u5316\uff1a<\/p>\n\n\n\n<p>\u3000\u3000<strong>(1) \u4f4e\u529f\u8017\u6a21\u5f0f<\/strong><\/p>\n\n\n\n<p>\u3000\u3000LoRa\u6a21\u5757\u63d0\u4f9b\u591a\u79cd\u4f4e\u529f\u8017\u6a21\u5f0f(\u5982\u4f11\u7720\u6a21\u5f0f\u3001\u5f85\u673a\u6a21\u5f0f)\uff0c\u53ef\u4ee5\u6839\u636e\u5de5\u4f5c\u72b6\u6001\u7075\u6d3b\u5207\u6362\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u4f11\u7720\u6a21\u5f0f<\/strong>\uff1a\u529f\u8017\u6781\u4f4e(\u901a\u5e38\u5728 1 \u03bcA \u4ee5\u4e0b)\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u5f85\u673a\u6a21\u5f0f<\/strong>\uff1a\u9002\u7528\u4e8e\u77ed\u65f6\u95f4\u7a7a\u95f2\u72b6\u6001\uff0c\u529f\u8017\u4f4e(\u4e00\u822c\u5728 1.6 mA \u5de6\u53f3)\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u5728\u65e0\u6570\u636e\u4f20\u8f93\u65f6\uff0c\u6a21\u5757\u4f1a\u81ea\u52a8\u8fdb\u5165\u4f4e\u529f\u8017\u6a21\u5f0f\uff0c\u5927\u5e45\u964d\u4f4e\u5f85\u673a\u80fd\u8017\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>(2) \u9ad8\u6548\u5c04\u9891\u529f\u653e<\/strong><\/p>\n\n\n\n<p>\u3000\u3000LoRa\u6a21\u5757\u4e2d\u7684\u5c04\u9891\u529f\u653e\u8bbe\u8ba1\u5177\u6709\u9ad8\u6548\u7387\uff0c\u53ef\u6839\u636e\u4f20\u8f93\u529f\u7387\u9700\u6c42\u52a8\u6001\u8c03\u6574\u8f93\u51fa\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u4f8b\u5982\uff0c\u5728\u77ed\u8ddd\u79bb\u901a\u4fe1\u4e2d\u964d\u4f4e\u53d1\u5c04\u529f\u7387\uff0c\u5728\u957f\u8ddd\u79bb\u901a\u4fe1\u4e2d\u63d0\u9ad8\u53d1\u5c04\u529f\u7387\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u5e38\u89c1\u529f\u653e\u6548\u7387\u7ea6\u4e3a 70-80%\uff0c\u51cf\u5c11\u4e86\u529f\u7387\u635f\u8017\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>(3) \u96c6\u6210\u7535\u6e90\u7ba1\u7406<\/strong><\/p>\n\n\n\n<p>\u3000\u3000LoRa\u82af\u7247\u5185\u90e8\u96c6\u6210\u4e86\u9ad8\u6548\u7684\u7535\u6e90\u7ba1\u7406\u5355\u5143(PMU)\uff0c\u4f18\u5316\u4e86\u4e0d\u540c\u7535\u8def\u6a21\u5757\u4e4b\u95f4\u7684\u4f9b\u7535\u5206\u914d\uff0c\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u529f\u8017\u6d6a\u8d39\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u3000<strong>3. \u534f\u8bae\u5c42\u7684\u529f\u8017\u4f18\u5316<\/strong><\/h3>\n\n\n\n<p>\u3000\u3000LoRa\u7684\u534f\u8bae\u5c42(\u5982LoRaWAN\u534f\u8bae)\u4e5f\u4e3a\u4f4e\u529f\u8017\u5e94\u7528\u573a\u666f\u8fdb\u884c\u4e86\u4e13\u95e8\u8bbe\u8ba1\uff1a<\/p>\n\n\n\n<p>\u3000\u3000<strong>(1) ALOHA\u901a\u4fe1\u673a\u5236<\/strong><\/p>\n\n\n\n<p>\u3000\u3000LoRaWAN\u4f7f\u7528\u7b80\u5316\u7684<strong>ALOHA\u901a\u4fe1\u673a\u5236<\/strong>\uff0c\u8bbe\u5907\u5728\u9700\u8981\u65f6\u624d\u4f1a\u968f\u673a\u53d1\u9001\u6570\u636e\uff0c\u800c\u4e0d\u662f\u6301\u7eed\u4fdd\u6301\u8fde\u63a5\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u4f4e\u529f\u8017\u5f71\u54cd<\/strong>\uff1a\u907f\u514d\u4e86\u4f20\u7edf\u65e0\u7ebf\u901a\u4fe1\u4e2d\u957f\u65f6\u95f4\u4fdd\u6301\u8fde\u63a5\u7684\u9ad8\u529f\u8017\u95ee\u9898\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>(2) Class\u5206\u7ea7\u673a\u5236<\/strong><\/p>\n\n\n\n<p>\u3000\u3000LoRaWAN\u5c06\u8bbe\u5907\u5206\u4e3a\u4e09\u79cd\u901a\u4fe1\u7c7b\u522b\uff0c\u5206\u522b\u9002\u5e94\u4e0d\u540c\u7684\u529f\u8017\u9700\u6c42\uff1a<\/p>\n\n\n\n<p>\u3000\u3000<strong>Class A\uff08\u8d85\u4f4e\u529f\u8017\uff09<\/strong>\uff1a<\/p>\n\n\n\n<p>\u3000\u3000\u8bbe\u5907\u5728\u5b8c\u6210\u6570\u636e\u53d1\u9001\u540e\u53ea\u5f00\u542f\u77ed\u65f6\u95f4\u7684\u63a5\u6536\u7a97\u53e3\uff0c\u5269\u4f59\u65f6\u95f4\u8fdb\u5165\u4f11\u7720\u72b6\u6001\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u9002\u5408\u5927\u591a\u6570\u4f4e\u529f\u8017\u7269\u8054\u7f51\u8bbe\u5907(\u5982\u4f20\u611f\u5668)\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>Class B\uff08\u5e73\u8861\u6a21\u5f0f\uff09<\/strong>\uff1a<\/p>\n\n\n\n<p>\u3000\u3000\u5728Class A\u7684\u57fa\u7840\u4e0a\uff0c\u5b9a\u671f\u5f00\u542f\u63a5\u6536\u7a97\u53e3\uff0c\u9002\u5408\u9700\u8981\u5b9a\u65f6\u901a\u4fe1\u7684\u8bbe\u5907\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>Class C\uff08\u9ad8\u529f\u8017\u6a21\u5f0f\uff09<\/strong>\uff1a<\/p>\n\n\n\n<p>\u3000\u3000\u63a5\u6536\u7a97\u53e3\u5e38\u5f00\uff0c\u9002\u5408\u9700\u8981\u5b9e\u65f6\u901a\u4fe1\u7684\u573a\u666f\uff0c\u4f46\u529f\u8017\u8f83\u9ad8\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u4f4e\u529f\u8017\u5f71\u54cd<\/strong>\uff1aClass A\u6a21\u5f0f\u7684\u8bbe\u8ba1\u53ef\u4ee5\u8ba9\u8bbe\u5907\u5728\u5927\u90e8\u5206\u65f6\u95f4\u5185\u5904\u4e8e\u4f11\u7720\u72b6\u6001\uff0c\u5927\u5e45\u8282\u7701\u7535\u529b\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>(3) Duty Cycle\u9650\u5236<\/strong><\/p>\n\n\n\n<p>\u3000\u3000LoRaWAN\u534f\u8bae\u89c4\u5b9a\u4e86\u53d1\u5c04\u4fe1\u53f7\u7684&nbsp;<strong>Duty Cycle\uff08\u5360\u7a7a\u6bd4\uff09<\/strong>\uff0c\u5373\u9650\u5236\u6bcf\u4e2a\u8bbe\u5907\u5728\u5355\u4f4d\u65f6\u95f4\u5185\u7684\u53d1\u5c04\u65f6\u957f\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u5360\u7a7a\u6bd4\u901a\u5e38\u5728 1% \u4ee5\u4e0b\uff0c\u8fd9\u610f\u5473\u7740\u8bbe\u590799%\u7684\u65f6\u95f4\u5904\u4e8e\u975e\u53d1\u5c04\u72b6\u6001\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u4f4e\u529f\u8017\u5f71\u54cd<\/strong>\uff1a\u4e25\u683c\u9650\u5236\u4e86\u53d1\u5c04\u65f6\u95f4\uff0c\u51cf\u5c11\u80fd\u8017\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>(4) \u6570\u636e\u5e27\u4f18\u5316<\/strong><\/p>\n\n\n\n<p>\u3000\u3000LoRaWAN\u534f\u8bae\u4e2d\u7684\u6570\u636e\u5305\u8bbe\u8ba1\u975e\u5e38\u7b80\u6d01\uff0c\u901a\u5e38\u4ec5\u5305\u542b\u5fc5\u8981\u7684\u5934\u4fe1\u606f\u548c\u8f7d\u8377\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u6570\u636e\u5305\u7684\u957f\u5ea6\u5c3d\u53ef\u80fd\u77ed\uff0c\u964d\u4f4e\u4e86\u53d1\u9001\u65f6\u95f4\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u4f4e\u529f\u8017\u5f71\u54cd<\/strong>\uff1a\u51cf\u5c11\u4e86\u901a\u4fe1\u65f6\u95f4\u548c\u80fd\u8017\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u3000<strong>4. \u7f51\u7edc\u67b6\u6784\u7684\u4f4e\u529f\u8017\u7279\u6027<\/strong><\/h3>\n\n\n\n<p>\u3000\u3000LoRa\u7684\u7f51\u7edc\u67b6\u6784\u8bbe\u8ba1\u4e3a<strong>\u661f\u578b\u62d3\u6251\u7ed3\u6784<\/strong>\uff0c\u8fd9\u4e00\u7ed3\u6784\u4e5f\u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u964d\u4f4e\u4e86\u529f\u8017\uff1a<\/p>\n\n\n\n<p>\u3000\u3000<strong>(1) \u8bbe\u5907\u76f4\u8fde\u7f51\u5173<\/strong><\/p>\n\n\n\n<p>\u3000\u3000LoRa\u8bbe\u5907\u76f4\u63a5\u4e0e\u7f51\u5173\u901a\u4fe1\uff0c\u65e0\u9700\u4e2d\u95f4\u8f6c\u53d1\u8bbe\u5907\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u4f4e\u529f\u8017\u5f71\u54cd<\/strong>\uff1a\u907f\u514d\u4e86\u4f20\u7edf\u7f51\u72b6\u7f51\u7edc\u4e2d\u4e2d\u7ee7\u8282\u70b9\u7684\u591a\u6b21\u901a\u4fe1\u5e26\u6765\u7684\u9ad8\u529f\u8017\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>(2) \u957f\u8ddd\u79bb\u901a\u4fe1\u964d\u4f4e\u8bbe\u5907\u5bc6\u5ea6<\/strong><\/p>\n\n\n\n<p>\u3000\u3000LoRa\u7684\u957f\u8ddd\u79bb\u901a\u4fe1\u80fd\u529b(\u901a\u5e38\u53ef\u8fbe 10 \u516c\u91cc)\u51cf\u5c11\u4e86\u7f51\u7edc\u4e2d\u57fa\u7ad9\u6216\u7f51\u5173\u7684\u6570\u91cf\uff0c\u964d\u4f4e\u4e86\u8bbe\u5907\u4e0e\u7f51\u5173\u4e4b\u95f4\u7684\u901a\u4fe1\u9891\u7387\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u4f4e\u529f\u8017\u5f71\u54cd<\/strong>\uff1a\u8bbe\u5907\u53d1\u5c04\u529f\u7387\u66f4\u4f4e\uff0c\u901a\u4fe1\u6b21\u6570\u66f4\u5c11\uff0c\u6574\u4f53\u80fd\u8017\u4e0b\u964d\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u3000<strong>5. \u5de5\u4f5c\u6d41\u7a0b\u7684\u4f18\u5316\u8bbe\u8ba1<\/strong><\/h3>\n\n\n\n<p>\u3000\u3000LoRa\u6a21\u5757\u7684\u5de5\u4f5c\u6d41\u7a0b\u4e5f\u7ecf\u8fc7\u4f18\u5316\uff0c\u4ee5\u6700\u5927\u5316\u8282\u7ea6\u80fd\u6e90\uff1a<\/p>\n\n\n\n<p>\u3000\u3000<strong>(1) \u4e8b\u4ef6\u89e6\u53d1\u5de5\u4f5c\u6a21\u5f0f<\/strong><\/p>\n\n\n\n<p>\u3000\u3000LoRa\u6a21\u5757\u901a\u5e38\u4e0e\u4f20\u611f\u5668\u914d\u5408\uff0c\u8bbe\u8ba1\u4e3a\u201c\u4e8b\u4ef6\u89e6\u53d1\u6a21\u5f0f\u201d\uff0c\u5373\u53ea\u6709\u5f53\u4f20\u611f\u5668\u68c0\u6d4b\u5230\u53d8\u5316(\u5982\u6e29\u5ea6\u5347\u9ad8\u3001\u5f00\u5173\u72b6\u6001\u6539\u53d8)\u65f6\u624d\u4f1a\u53d1\u9001\u6570\u636e\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u4f4e\u529f\u8017\u5f71\u54cd<\/strong>\uff1a\u907f\u514d\u4e86\u6301\u7eed\u53d1\u9001\u65e0\u610f\u4e49\u6570\u636e\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>(2) \u5b9a\u65f6\u5524\u9192\u4e0e\u6570\u636e\u4f20\u8f93<\/strong><\/p>\n\n\n\n<p>\u3000\u3000\u5927\u90e8\u5206\u65f6\u95f4\u5185\uff0cLoRa\u6a21\u5757\u5904\u4e8e\u4f11\u7720\u72b6\u6001\uff0c\u53ea\u6709\u5728\u9884\u8bbe\u65f6\u95f4\u5230\u8fbe\u6216\u4e8b\u4ef6\u89e6\u53d1\u65f6\u624d\u4f1a\u88ab\u5524\u9192\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u4f8b\u5982\uff1a<\/p>\n\n\n\n<p>\u3000\u3000\u73af\u5883\u76d1\u6d4b\u8bbe\u5907\u6bcf\u9694 1 \u5c0f\u65f6\u91c7\u96c6\u4e00\u6b21\u6570\u636e\u5e76\u53d1\u9001\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u505c\u8f66\u7ba1\u7406\u7cfb\u7edf\u4ec5\u5728\u8f66\u4f4d\u72b6\u6001\u53d1\u751f\u53d8\u5316\u65f6\u53d1\u9001\u4fe1\u606f\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u3000<strong>6. \u7ed3\u5408\u5e94\u7528\u7684\u529f\u8017\u4f18\u5316<\/strong><\/h3>\n\n\n\n<p>\u3000\u3000\u5177\u4f53\u7684\u7269\u8054\u7f51\u5e94\u7528\u4e2d\uff0cLoRa\u6a21\u5757\u8fd8\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u8fdb\u4e00\u6b65\u4f18\u5316\u529f\u8017\uff1a<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u7535\u6c60\u4f9b\u7535\u7ba1\u7406<\/strong>\uff1a<\/p>\n\n\n\n<p>\u3000\u3000\u7ed3\u5408\u7535\u6c60\u7ba1\u7406\u7cfb\u7edf(BMS)\u548c\u592a\u9633\u80fd\u7b49\u4f4e\u529f\u8017\u80fd\u6e90\u65b9\u6848\uff0c\u5ef6\u957f\u8bbe\u5907\u8fd0\u884c\u65f6\u95f4\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u8282\u70b9\u5206\u5e03\u4f18\u5316<\/strong>\uff1a<\/p>\n\n\n\n<p>\u3000\u3000\u5728\u5e94\u7528\u573a\u666f\u4e2d\u5408\u7406\u5e03\u5c40\u8282\u70b9\u4f4d\u7f6e\uff0c\u5c3d\u91cf\u51cf\u5c11\u8fdc\u8ddd\u79bb\u901a\u4fe1\u9700\u6c42\uff0c\u964d\u4f4e\u53d1\u5c04\u529f\u7387\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u8fb9\u7f18\u8ba1\u7b97\u652f\u6301<\/strong>\uff1a<\/p>\n\n\n\n<p>\u3000\u3000\u5728\u4f20\u611f\u5668\u7aef\u8fdb\u884c\u7b80\u5355\u7684\u6570\u636e\u5904\u7406\uff0c\u4ec5\u4e0a\u4f20\u5173\u952e\u4fe1\u606f\uff0c\u51cf\u5c11\u901a\u4fe1\u9891\u7387\u3002<\/p>\n\n\n\n<p>\u3000\u3000LoRa\u65e0\u7ebf\u6536\u53d1\u6a21\u5757\u7684\u4f4e\u529f\u8017\u7279\u6027\u6765\u6e90\u4e8e\u6280\u672f\u548c\u534f\u8bae\u7684\u591a\u91cd\u4f18\u5316\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>CSS\u6269\u9891\u8c03\u5236<\/strong>\u5b9e\u73b0\u9ad8\u7075\u654f\u5ea6\u548c\u7a84\u5e26\u901a\u4fe1\uff0c\u964d\u4f4e\u53d1\u5c04\u529f\u8017\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u786c\u4ef6\u8bbe\u8ba1<\/strong>\u63d0\u4f9b\u4f11\u7720\u6a21\u5f0f\u3001\u9ad8\u6548\u5c04\u9891\u529f\u653e\u548c\u7535\u6e90\u7ba1\u7406\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>LoRaWAN\u534f\u8bae<\/strong>\u901a\u8fc7Class A\u6a21\u5f0f\u3001Duty Cycle\u9650\u5236\u548cALOHA\u673a\u5236\u51cf\u5c11\u901a\u4fe1\u65f6\u95f4\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u7f51\u7edc\u67b6\u6784<\/strong>\u4f18\u5316\u8bbe\u5907\u7684\u901a\u4fe1\u65b9\u5f0f\uff0c\u51cf\u5c11\u53d1\u5c04\u9891\u7387\u548c\u4e2d\u7ee7\u6d88\u8017\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u5e94\u7528\u4f18\u5316<\/strong>\u7ed3\u5408\u5b9e\u9645\u573a\u666f\uff0c\u8bbe\u8ba1\u4f4e\u9891\u6b21\u3001\u4e8b\u4ef6\u89e6\u53d1\u7684\u901a\u4fe1\u7b56\u7565\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000\u8fd9\u4e9b\u7279\u70b9\u4f7fLoRa\u975e\u5e38\u9002\u5408\u5e94\u7528\u4e8e\u8fdc\u8ddd\u79bb\u3001\u4f4e\u6570\u636e\u91cf\u3001\u4f4e\u529f\u8017\u7684\u7269\u8054\u7f51\u573a\u666f\uff0c\u5982\u667a\u80fd\u6284\u8868\u3001\u73af\u5883\u76d1\u6d4b\u548c\u8d44\u4ea7\u8ddf\u8e2a\u7b49\uff0c\u4e3a\u7269\u8054\u7f51\u8bbe\u5907\u63d0\u4f9b\u4e86\u957f\u7eed\u822a\u7684\u901a\u4fe1\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e09\u3001 LoRa\u65e0\u7ebf\u6536\u53d1\u6a21\u5757\u5982\u4f55\u62b5\u6297\u540c\u9891\u5e72\u6270\u548c\u591a\u5f84\u6548\u5e94?<\/h2>\n\n\n\n<p>\u3000\u3000LoRa\u65e0\u7ebf\u6536\u53d1\u6a21\u5757\u62b5\u6297\u540c\u9891\u5e72\u6270\u548c\u591a\u5f84\u6548\u5e94\u7684\u65b9\u6cd5\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u51e0\u79cd\uff1a<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u6269\u9891\u6280\u672f<\/strong>\uff1aLoRa\u6a21\u5757\u91c7\u7528\u6269\u9891\u6280\u672f\uff0c\u901a\u8fc7\u589e\u52a0\u4fe1\u53f7\u5e26\u5bbd\uff0c\u5c06\u4fe1\u53f7\u80fd\u91cf\u5206\u6563\u5230\u66f4\u5bbd\u7684\u9891\u7387\u8303\u56f4\u5185\uff0c\u4ece\u800c\u964d\u4f4e\u5355\u4e2a\u9891\u7387\u70b9\u4e0a\u7684\u5e72\u6270\u5f71\u54cd\u3002\u6269\u9891\u56e0\u5b50(SF)\u662fLoRa\u6280\u672f\u4e2d\u7684\u4e00\u4e2a\u91cd\u8981\u53c2\u6570\uff0c\u5b83\u51b3\u5b9a\u4e86\u4fe1\u53f7\u7684\u4f20\u8f93\u901f\u7387\u548c\u6297\u5e72\u6270\u80fd\u529b\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u8df3\u9891\u6280\u672f<\/strong>\uff1aLoRa\u6a21\u5757\u4f7f\u7528\u8df3\u9891\u6280\u672f\uff0c\u5373\u5728\u4e0d\u540c\u7684\u4fe1\u9053\u4e4b\u95f4\u5207\u6362\u53d1\u9001\u4fe1\u53f7\u3002\u8fd9\u79cd\u6280\u672f\u4f7f\u5f97LoRa\u80fd\u591f\u5728\u590d\u6742\u7684\u65e0\u7ebf\u73af\u5883\u4e2d\u907f\u514d\u7279\u5b9a\u4fe1\u9053\u4e0a\u7684\u5e72\u6270\uff0c\u4ece\u800c\u63d0\u9ad8\u901a\u4fe1\u7684\u7a33\u5b9a\u6027\u548c\u53ef\u9760\u6027\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u591a\u5f84\u4fe1\u9053\u8865\u507f<\/strong>\uff1a\u9488\u5bf9\u591a\u5f84\u5e72\u6270\u95ee\u9898\uff0cLoRa\u6a21\u5757\u91c7\u7528\u5f31\u4fe1\u53f7\u4f18\u5148\u539f\u5219\uff0c\u5373\u5728\u591a\u5f84\u4fe1\u53f7\u7684\u5e72\u6270\u4e0b\uff0c\u4f18\u5148\u9009\u62e9\u63a5\u6536\u4fe1\u53f7\u8f83\u5f31\u7684\u8def\u5f84\uff0c\u5e76\u901a\u8fc7\u5408\u7406\u8bbe\u8ba1\u63a5\u6536\u95e8\u9650\u6765\u5b9e\u73b0\u8fd9\u4e00\u76ee\u6807\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u9ad8\u7075\u654f\u5ea6\u63a5\u6536<\/strong>\uff1aLoRa\u6a21\u5757\u5728\u63a5\u6536\u7aef\u5177\u6709\u8f83\u9ad8\u7684\u63a5\u6536\u7075\u654f\u5ea6\uff0c\u80fd\u591f\u5728\u8f83\u4f4e\u7684\u4fe1\u566a\u6bd4\u73af\u5883\u4e0b\u63a5\u6536\u5230\u4fe1\u53f7\uff0c\u4ece\u800c\u589e\u5f3a\u5176\u6297\u5e72\u6270\u6027\u80fd\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u4e3b\u673a\u8f6e\u8be2\u65b9\u5f0f<\/strong>\uff1a\u901a\u8fc7\u4e3b\u673a\u9010\u4e2a\u8f6e\u8be2\u4ece\u673a\u7684\u65b9\u5f0f\uff0c\u53ef\u4ee5\u907f\u514d\u591a\u4e2a\u8bbe\u5907\u5728\u540c\u4e00\u65f6\u95f4\u4e0a\u901a\u4fe1\u800c\u4ea7\u751f\u7684\u5e72\u6270\u3002\u8fd9\u79cd\u65b9\u5f0f\u7b80\u5355\u6613\u884c\uff0c\u4f46\u4e3b\u673a\u8f6e\u8be2\u8017\u65f6\u8f83\u957f\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u7cbe\u786e\u63a7\u5236\u53d1\u5c04\u529f\u7387<\/strong>\uff1a\u901a\u8fc7\u8c03\u6574\u6280\u672f\u53c2\u6570\u548c\u8f6f\u4ef6\u8bbe\u7f6e\uff0c\u7cbe\u786e\u63a7\u5236LoRa\u6a21\u5757\u7684\u53d1\u5c04\u529f\u7387\uff0c\u4ece\u800c\u51cf\u5c11\u5185\u90e8\u5e72\u6270\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u667a\u80fd\u8f6e\u8be2\u673a\u5236<\/strong>\uff1a\u5229\u7528\u667a\u80fd\u7b97\u6cd5\u6765\u5b9e\u73b0\u8f6e\u8be2\u673a\u5236\uff0c\u51cf\u5c11\u540c\u9891\u5e72\u6270\u7684\u53d1\u751f\u3002\u8fd9\u79cd\u65b9\u6cd5\u7ed3\u5408\u4e86\u5148\u8fdb\u7684\u7b97\u6cd5\u548c\u7f51\u7edc\u7ba1\u7406\u7b56\u7565\uff0c\u63d0\u9ad8\u4e86\u7cfb\u7edf\u7684\u6574\u4f53\u6548\u7387\u548c\u7a33\u5b9a\u6027\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u4f18\u5316\u9891\u7387\u89c4\u5212<\/strong>\uff1a\u9009\u62e9\u5408\u9002\u7684\u5de5\u4f5c\u9891\u7387\uff0c\u907f\u514d\u4e0e\u5176\u4ed6\u8bbe\u5907\u9891\u7387\u91cd\u53e0\uff0c\u52a8\u6001\u8c03\u6574\u9891\u7387\uff0c\u589e\u52a0\u53d1\u5c04\u529f\u7387\uff0c\u4f18\u5316\u5de5\u4f5c\u53c2\u6570\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u6297\u5e72\u6270\u6280\u672f<\/strong>\uff1a\u5229\u7528LoRa\u6280\u672f\u672c\u8eab\u7684\u6269\u9891\u3001CSS\u8c03\u5236\u3001\u524d\u5411\u7ea0\u9519\u7f16\u7801\u7b49\u6297\u5e72\u6270\u80fd\u529b\uff0c\u4ee5\u53ca\u81ea\u9002\u5e94\u901f\u7387\u8c03\u5236\u548c\u9891\u7387\u8df3\u53d8\u6280\u672f\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u56db\u3001 LoRa\u65e0\u7ebf\u6536\u53d1\u6a21\u5757\u7684\u4e00\u6536\u591a\u53d1\u529f\u80fd\u662f\u5982\u4f55\u901a\u8fc7\u9891\u7387\u590d\u7528\u548c\u78b0\u649e\u68c0\u6d4b\u673a\u5236\u5b9e\u73b0\u7684?<\/h2>\n\n\n\n<p>\u3000\u3000LoRa\u65e0\u7ebf\u6536\u53d1\u6a21\u5757\u7684\u4e00\u6536\u591a\u53d1\u529f\u80fd\u4e3b\u8981\u901a\u8fc7<strong>\u9891\u7387\u590d\u7528<\/strong>\u4e0e<strong>\u78b0\u649e\u68c0\u6d4b\u673a\u5236<\/strong>\u7684\u914d\u5408\u6765\u5b9e\u73b0\u3002\u8fd9\u79cd\u529f\u80fd\u5728LoRa\u7f51\u7edc\u4e2d\u81f3\u5173\u91cd\u8981\uff0c\u56e0\u4e3a\u4e00\u4e2aLoRa\u7f51\u5173\u901a\u5e38\u9700\u8981\u540c\u65f6\u63a5\u6536\u6765\u81ea\u5927\u91cf\u7ec8\u7aef\u8bbe\u5907\u7684\u6570\u636e\uff0c\u4ece\u800c\u786e\u4fdd\u7f51\u7edc\u7684\u9ad8\u6548\u6027\u548c\u53ef\u9760\u6027\u3002\u4ee5\u4e0b\u8be6\u7ec6\u89e3\u6790\u9891\u7387\u590d\u7528\u548c\u78b0\u649e\u68c0\u6d4b\u673a\u5236\u5982\u4f55\u5728LoRa\u4e2d\u53d1\u6325\u4f5c\u7528\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u3000<strong>1. \u9891\u7387\u590d\u7528\uff08Frequency Reuse\uff09<\/strong><\/h3>\n\n\n\n<p>\u3000\u3000LoRa\u6a21\u5757\u91c7\u7528<strong>\u591a\u9891\u4fe1\u9053<\/strong>\u7684\u65b9\u5f0f\u8fdb\u884c\u901a\u4fe1\uff0c\u591a\u4e2a\u7ec8\u7aef\u8bbe\u5907\u53ef\u4ee5\u5728\u4e0d\u540c\u9891\u7387\u4e0a\u53d1\u9001\u6570\u636e\uff0c\u800c\u7f51\u5173\u80fd\u591f\u540c\u65f6\u76d1\u542c\u591a\u4e2a\u9891\u7387\u4fe1\u9053\u3002\u8fd9\u79cd\u8bbe\u8ba1\u4f9d\u8d56\u4e8e\u4ee5\u4e0b\u4e24\u70b9\uff1a<\/p>\n\n\n\n<p>\u3000\u3000<strong>(1) \u4fe1\u9053\u5212\u5206<\/strong><\/p>\n\n\n\n<p>\u3000\u3000LoRa\u5de5\u4f5c\u5728<strong>ISM\u9891\u6bb5<\/strong>(\u4f8b\u5982 433 MHz\u3001868 MHz\u3001915 MHz \u7b49)\uff0c\u4e0d\u540c\u5730\u533a\u7684\u9891\u6bb5\u5212\u5206\u7565\u6709\u4e0d\u540c\u3002\u6bcf\u4e2a\u9891\u6bb5\u5185\u8fdb\u4e00\u6b65\u5212\u5206\u4e3a\u591a\u4e2a\u5b50\u4fe1\u9053\uff0c\u6bcf\u4e2a\u5b50\u4fe1\u9053\u7684\u5e26\u5bbd\u901a\u5e38\u4e3a&nbsp;<strong>125 kHz\u3001250 kHz \u6216 500 kHz<\/strong>\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u7f51\u5173\u901a\u5e38\u914d\u5907\u591a\u4e2a\u5c04\u9891\u524d\u7aef\u548c\u4fe1\u9053\u5904\u7406\u5355\u5143\uff0c\u53ef\u4ee5\u540c\u65f6\u76d1\u542c\u591a\u4e2a\u5b50\u4fe1\u9053\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u6548\u679c<\/strong>\uff1a\u901a\u8fc7\u5728\u4e0d\u540c\u5b50\u4fe1\u9053\u4e0a\u4f20\u8f93\u6570\u636e\uff0c\u4e0d\u540c\u8bbe\u5907\u7684\u4fe1\u53f7\u4e0d\u4f1a\u76f8\u4e92\u5e72\u6270\uff0c\u5b9e\u73b0\u4e86<strong>\u9891\u7387\u590d\u7528<\/strong>\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>(2) \u8f7d\u6ce2\u9891\u7387\u968f\u673a\u5316<\/strong><\/p>\n\n\n\n<p>\u3000\u3000LoRa\u7ec8\u7aef\u8bbe\u5907\u5728\u6bcf\u6b21\u53d1\u9001\u6570\u636e\u65f6\uff0c\u53ef\u4ee5\u968f\u673a\u9009\u62e9\u4e00\u4e2a\u4fe1\u9053\u548c\u8f7d\u6ce2\u9891\u7387(\u5728\u4e00\u5b9a\u8303\u56f4\u5185)\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u4f18\u52bf<\/strong>\uff1a\u8f7d\u6ce2\u9891\u7387\u7684\u968f\u673a\u5316\u51cf\u5c11\u4e86\u591a\u4e2a\u8bbe\u5907\u540c\u65f6\u5360\u7528\u540c\u4e00\u4fe1\u9053\u7684\u6982\u7387\uff0c\u4ece\u800c\u964d\u4f4e\u4e86\u4fe1\u53f7\u78b0\u649e\u98ce\u9669\uff0c\u63d0\u5347\u4e86\u7f51\u7edc\u541e\u5410\u91cf\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>(3) \u4fe1\u9053\u52a8\u6001\u5206\u914d<\/strong><\/p>\n\n\n\n<p>\u3000\u3000\u5728\u4e00\u4e9b\u9ad8\u7ea7LoRa\u5e94\u7528\u4e2d(\u4f8b\u5982\u57fa\u4e8eLoRaWAN\u534f\u8bae\u7684\u7f51\u7edc)\uff0c\u7f51\u5173\u548c\u7f51\u7edc\u670d\u52a1\u5668\u53ef\u4ee5\u52a8\u6001\u5206\u914d\u4fe1\u9053\uff0c\u786e\u4fdd\u8bbe\u5907\u4f7f\u7528\u7684\u4fe1\u9053\u5747\u5300\u5206\u5e03\uff0c\u8fdb\u4e00\u6b65\u63d0\u5347\u9891\u7387\u590d\u7528\u6548\u7387\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u3000<strong>2. \u78b0\u649e\u68c0\u6d4b\u673a\u5236\uff08Collision Detection Mechanism\uff09<\/strong><\/h3>\n\n\n\n<p>\u3000\u3000\u867d\u7136\u9891\u7387\u590d\u7528\u964d\u4f4e\u4e86\u4fe1\u53f7\u78b0\u649e\u7684\u6982\u7387\uff0c\u4f46\u5e76\u4e0d\u80fd\u5b8c\u5168\u907f\u514d\u3002\u4e3a\u4e86\u5728\u4fe1\u53f7\u78b0\u649e\u53d1\u751f\u65f6\u5c3d\u91cf\u51cf\u5c11\u6570\u636e\u4e22\u5931\uff0cLoRa\u901a\u8fc7\u4ee5\u4e0b\u673a\u5236\u5b9e\u73b0<strong>\u78b0\u649e\u68c0\u6d4b\u548c\u6062\u590d<\/strong>\uff1a<\/p>\n\n\n\n<p>\u3000\u3000<strong>(1) \u6b63\u4ea4\u6269\u9891\u56e0\u5b50\uff08Spreading Factor, SF\uff09<\/strong><\/p>\n\n\n\n<p>\u3000\u3000LoRa\u4f7f\u7528&nbsp;<strong>\u6b63\u4ea4\u6269\u9891\u56e0\u5b50\uff08SF\uff09<\/strong>&nbsp;\u8fdb\u884c\u6570\u636e\u8c03\u5236\uff0c\u4e0d\u540c\u7684SF\u4e4b\u95f4\u5177\u6709<strong>\u6b63\u4ea4\u6027<\/strong>\uff0c\u5373\u4f7f\u7528\u4e0d\u540cSF\u7684\u4fe1\u53f7\u53ef\u4ee5\u5728\u540c\u4e00\u9891\u7387\u4fe1\u9053\u4e0a\u540c\u65f6\u4f20\u8f93\u4e14\u4e0d\u4f1a\u4e92\u76f8\u5e72\u6270\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u6269\u9891\u56e0\u5b50\u8303\u56f4<\/strong>\uff1a\u901a\u5e38\u4e3a&nbsp;<strong>SF6 \u5230 SF12<\/strong>\uff0c\u6269\u9891\u56e0\u5b50\u8d8a\u5927\uff0c\u4f20\u8f93\u8ddd\u79bb\u8d8a\u8fdc\uff0c\u4f46\u901f\u7387\u8d8a\u4f4e\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u6b63\u4ea4\u6027\u6548\u679c<\/strong>\uff1a<\/p>\n\n\n\n<p>\u3000\u3000\u4f7f\u7528\u4e0d\u540cSF\u7684\u8bbe\u5907\u5373\u4f7f\u5728\u540c\u4e00\u9891\u7387\u4fe1\u9053\u4e0a\u4f20\u8f93\u6570\u636e\uff0c\u4e5f\u4e0d\u4f1a\u53d1\u751f\u78b0\u649e\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u4f4e\u529f\u8017\u5f71\u54cd<\/strong>\uff1a\u8fd9\u79cd\u6b63\u4ea4\u6027\u5141\u8bb8\u591a\u4e2a\u8bbe\u5907\u5728\u540c\u4e00\u4fe1\u9053\u4e0a\u5e76\u53d1\u4f20\u8f93\uff0c\u800c\u65e0\u9700\u589e\u52a0\u53d1\u5c04\u529f\u7387\u6216\u5ef6\u957f\u4f20\u8f93\u65f6\u957f\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>(2) \u6355\u83b7\u6548\u5e94\uff08Capture Effect\uff09<\/strong><\/p>\n\n\n\n<p>\u3000\u3000LoRa\u6a21\u5757\u63a5\u6536\u4fe1\u53f7\u65f6\u5b58\u5728<strong>\u6355\u83b7\u6548\u5e94<\/strong>\uff0c\u5373\u5f53\u4e24\u4e2a\u4fe1\u53f7\u5728\u540c\u4e00\u4fe1\u9053\u53d1\u751f\u78b0\u649e\u65f6\uff0c\u5982\u679c\u5176\u4e2d\u4e00\u4e2a\u4fe1\u53f7\u7684\u5f3a\u5ea6\u663e\u8457\u9ad8\u4e8e\u53e6\u4e00\u4e2a\u4fe1\u53f7\uff0c\u63a5\u6536\u7aef\u53ef\u4ee5\u4f18\u5148\u89e3\u7801\u5f3a\u4fe1\u53f7\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u539f\u7406<\/strong>\uff1a\u5982\u679c\u5f3a\u4fe1\u53f7\u7684\u4fe1\u566a\u6bd4(SNR)\u8db3\u591f\u9ad8\uff0cLoRa\u63a5\u6536\u7aef\u80fd\u591f\u5ffd\u7565\u5f31\u4fe1\u53f7\u7684\u5e72\u6270\uff0c\u6b63\u786e\u89e3\u8c03\u5f3a\u4fe1\u53f7\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u5e94\u7528<\/strong>\uff1a\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u8fd9\u79cd\u673a\u5236\u4f7f\u5f97\u9760\u8fd1\u7f51\u5173\u7684\u8bbe\u5907(\u4fe1\u53f7\u8f83\u5f3a)\u5373\u4f7f\u4e0e\u8fdc\u8ddd\u79bb\u8bbe\u5907\u53d1\u751f\u78b0\u649e\uff0c\u4e5f\u6709\u8f83\u9ad8\u6982\u7387\u6210\u529f\u4f20\u8f93\u6570\u636e\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>(3) \u91cd\u4f20\u673a\u5236<\/strong><\/p>\n\n\n\n<p>\u3000\u3000\u5728LoRaWAN\u534f\u8bae\u4e2d\uff0c\u5982\u679c\u7ec8\u7aef\u8bbe\u5907\u672a\u6536\u5230\u7f51\u5173\u7684ACK(\u786e\u8ba4\u5e27)\uff0c\u5b83\u4f1a\u5728\u4e00\u4e2a\u968f\u673a\u7684\u65f6\u95f4\u95f4\u9694\u540e\u8fdb\u884c\u91cd\u4f20\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u4f18\u52bf<\/strong>\uff1a\u968f\u673a\u7684\u91cd\u4f20\u95f4\u9694\u907f\u514d\u4e86\u8bbe\u5907\u9891\u7e41\u53d1\u751f\u78b0\u649e\uff0c\u63d0\u9ad8\u4e86\u6574\u4f53\u6570\u636e\u4f20\u8f93\u6210\u529f\u7387\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u9650\u5236<\/strong>\uff1aLoRaWAN\u5bf9\u91cd\u4f20\u6b21\u6570\u548c\u9891\u7387\u6709\u4e25\u683c\u9650\u5236\uff0c\u4ee5\u964d\u4f4e\u7f51\u7edc\u62e5\u585e\u98ce\u9669\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u3000<strong>3. \u591a\u4fe1\u9053\u5e76\u884c\u63a5\u6536<\/strong><\/h3>\n\n\n\n<p>\u3000\u3000LoRa\u7f51\u5173\u7684\u786c\u4ef6\u8bbe\u8ba1\u5141\u8bb8\u5b83\u540c\u65f6\u63a5\u6536\u591a\u4e2a\u4fe1\u9053\u4e0a\u7684\u4fe1\u53f7\u3002\u8fd9\u79cd\u8bbe\u8ba1\u7684\u5173\u952e\u5728\u4e8e\uff1a<\/p>\n\n\n\n<p>\u3000\u3000<strong>(1) \u591a\u8def\u5c04\u9891\u524d\u7aef<\/strong><\/p>\n\n\n\n<p>\u3000\u3000\u7f51\u5173\u914d\u5907\u591a\u4e2a\u5c04\u9891\u524d\u7aef\uff0c\u6bcf\u4e2a\u524d\u7aef\u8d1f\u8d23\u76d1\u542c\u4e00\u4e2a\u6216\u591a\u4e2a\u4fe1\u9053\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u6bcf\u4e2a\u524d\u7aef\u53ef\u4ee5\u72ec\u7acb\u63a5\u6536\u3001\u89e3\u8c03\u5e76\u5904\u7406\u4fe1\u53f7\uff0c\u786e\u4fdd\u591a\u4e2a\u8bbe\u5907\u5728\u4e0d\u540c\u4fe1\u9053\u4e0a\u540c\u65f6\u53d1\u9001\u6570\u636e\u65f6\u90fd\u80fd\u88ab\u6b63\u786e\u63a5\u6536\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>(2) \u591aSF\u5e76\u884c\u89e3\u8c03<\/strong><\/p>\n\n\n\n<p>\u3000\u3000LoRa\u7f51\u5173\u901a\u5e38\u5177\u5907<strong>\u591aSF\u5e76\u884c\u89e3\u8c03\u80fd\u529b<\/strong>\uff0c\u5373\u5728\u540c\u4e00\u4fe1\u9053\u4e0a\u540c\u65f6\u63a5\u6536\u5e76\u89e3\u8c03\u4e0d\u540cSF\u7684\u4fe1\u53f7\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u6548\u679c<\/strong>\uff1a\u7f51\u5173\u5728\u5355\u4e2a\u4fe1\u9053\u4e0a\u4e5f\u80fd\u5b9e\u73b0\u591a\u8bbe\u5907\u5e76\u53d1\u901a\u4fe1\uff0c\u8fdb\u4e00\u6b65\u63d0\u5347\u4e86\u7f51\u7edc\u5bb9\u91cf\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u3000<strong>4. \u6570\u636e\u6821\u9a8c\u4e0e\u53bb\u91cd<\/strong><\/h3>\n\n\n\n<p>\u3000\u3000LoRa\u7f51\u5173\u548c\u7f51\u7edc\u670d\u52a1\u5668\u901a\u5e38\u8fd8\u4f1a\u8fdb\u884c<strong>\u6570\u636e\u6821\u9a8c\u4e0e\u53bb\u91cd<\/strong>\uff0c\u4ee5\u786e\u4fdd\u6570\u636e\u7684\u51c6\u786e\u6027\u548c\u552f\u4e00\u6027\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>(1) \u6570\u636e\u6821\u9a8c<\/strong><\/p>\n\n\n\n<p>\u3000\u3000\u6bcf\u4e2aLoRa\u6570\u636e\u5305\u90fd\u4f1a\u9644\u5e26\u6821\u9a8c\u4fe1\u606f(\u5982CRC\u6821\u9a8c\u7801)\uff0c\u63a5\u6536\u7aef\u5728\u89e3\u7801\u540e\u4f1a\u8fdb\u884c\u6821\u9a8c\uff0c\u4ee5\u68c0\u6d4b\u662f\u5426\u53d1\u751f\u4e86\u78b0\u649e\u6216\u6570\u636e\u635f\u574f\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u5982\u679c\u6821\u9a8c\u5931\u8d25\uff0c\u6570\u636e\u5305\u4f1a\u88ab\u4e22\u5f03\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>(2) \u6570\u636e\u53bb\u91cd<\/strong><\/p>\n\n\n\n<p>\u3000\u3000\u7531\u4e8eLoRa\u7ec8\u7aef\u53ef\u80fd\u4f1a\u5728\u591a\u4e2a\u4fe1\u9053\u4e0a\u91cd\u53d1\u540c\u4e00\u6570\u636e\u5305\uff0c\u7f51\u5173\u63a5\u6536\u5230\u591a\u4e2a\u76f8\u540c\u7684\u6570\u636e\u5305\u540e\uff0c\u7f51\u7edc\u670d\u52a1\u5668\u4f1a\u6839\u636e\u6570\u636e\u5305\u7684\u552f\u4e00\u6807\u8bc6\u8fdb\u884c\u53bb\u91cd\uff0c\u53ea\u4fdd\u7559\u4e00\u4efd\u6709\u6548\u6570\u636e\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u6548\u679c<\/strong>\uff1a\u907f\u514d\u4e86\u5197\u4f59\u6570\u636e\u7684\u5b58\u50a8\u548c\u5904\u7406\uff0c\u51cf\u8f7b\u4e86\u7f51\u7edc\u8d1f\u62c5\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u603b\u7ed3<\/strong><\/p>\n\n\n\n<p>\u3000\u3000LoRa\u65e0\u7ebf\u6536\u53d1\u6a21\u5757\u7684\u4e00\u6536\u591a\u53d1\u529f\u80fd\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u5b9e\u73b0\uff1a<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u9891\u7387\u590d\u7528<\/strong>\uff1a<\/p>\n\n\n\n<p>\u3000\u3000\u4f7f\u7528\u591a\u4fe1\u9053\u4f20\u8f93\u548c\u8f7d\u6ce2\u9891\u7387\u968f\u673a\u5316\u6765\u964d\u4f4e\u4fe1\u53f7\u78b0\u649e\u6982\u7387\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u901a\u8fc7\u6b63\u4ea4\u6269\u9891\u56e0\u5b50(SF)\u7684\u4f7f\u7528\uff0c\u5728\u540c\u4e00\u4fe1\u9053\u4e0a\u5b9e\u73b0\u591a\u8bbe\u5907\u5e76\u53d1\u4f20\u8f93\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u78b0\u649e\u68c0\u6d4b\u4e0e\u6062\u590d<\/strong>\uff1a<\/p>\n\n\n\n<p>\u3000\u3000\u5229\u7528\u6b63\u4ea4\u6269\u9891\u56e0\u5b50\u7684\u6b63\u4ea4\u6027\u548c\u6355\u83b7\u6548\u5e94\uff0c\u51cf\u5c11\u4fe1\u53f7\u78b0\u649e\u5e26\u6765\u7684\u5f71\u54cd\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u91c7\u7528\u91cd\u4f20\u673a\u5236\u548c\u968f\u673a\u91cd\u4f20\u95f4\u9694\uff0c\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u6210\u529f\u7387\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u591a\u4fe1\u9053\u5e76\u884c\u63a5\u6536<\/strong>\uff1a<\/p>\n\n\n\n<p>\u3000\u3000\u7f51\u5173\u901a\u8fc7\u591a\u8def\u5c04\u9891\u524d\u7aef\u548c\u591aSF\u5e76\u884c\u89e3\u8c03\uff0c\u652f\u6301\u540c\u65f6\u63a5\u6536\u591a\u4e2a\u9891\u7387\u4fe1\u9053\u548c\u6269\u9891\u56e0\u5b50\u7684\u4fe1\u53f7\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u6570\u636e\u6821\u9a8c\u4e0e\u53bb\u91cd<\/strong>\uff1a<\/p>\n\n\n\n<p>\u3000\u3000\u901a\u8fc7CRC\u6821\u9a8c\u786e\u4fdd\u6570\u636e\u5305\u5b8c\u6574\u6027\uff0c\u907f\u514d\u6570\u636e\u9519\u8bef\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u901a\u8fc7\u53bb\u91cd\u673a\u5236\u51cf\u5c11\u5197\u4f59\u6570\u636e\uff0c\u63d0\u5347\u7f51\u7edc\u6548\u7387\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u8fd9\u79cd\u8bbe\u8ba1\u4f7fLoRa\u7f51\u7edc\u80fd\u591f\u5728<strong>\u5927\u91cf\u8bbe\u5907\u5e76\u53d1\u901a\u4fe1<\/strong>\u7684\u60c5\u51b5\u4e0b\uff0c\u4fdd\u6301<strong>\u9ad8\u5bb9\u91cf<\/strong>\u548c<strong>\u4f4e\u529f\u8017<\/strong>\u7279\u6027\uff0c\u975e\u5e38\u9002\u5408\u7269\u8054\u7f51\u4e2d\u5e7f\u57df\u8986\u76d6\u548c\u4f4e\u529f\u8017\u5e94\u7528\u573a\u666f\u3002<\/p>\n\n\n\n<p>\u3000\u3000LoRa\u65e0\u7ebf\u6536\u53d1\u6a21\u5757\u7684\u4e00\u6536\u591a\u53d1\u529f\u80fd\u4e3b\u8981\u4f9d\u8d56\u4e8e\u4ee5\u4e0b\u51e0\u79cd\u673a\u5236\uff1a<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u78b0\u649e\u68c0\u6d4b\u4e0e\u91cd\u4f20\u673a\u5236<\/strong>\uff1a<\/p>\n\n\n\n<p>\u3000\u3000LoRa\u65e0\u7ebf\u6a21\u5757\u91c7\u7528\u4e86\u4e00\u79cd\u79f0\u4e3a\u201c\u78b0\u649e\u68c0\u6d4b\u201d\u7684\u673a\u5236\uff0c\u5f53\u591a\u4e2a\u8bbe\u5907\u540c\u65f6\u53d1\u9001\u6570\u636e\u65f6\uff0c\u68c0\u6d4b\u5230\u78b0\u649e\u5e76\u91cd\u4f20\uff0c\u4ece\u800c\u907f\u514d\u4e86\u6570\u636e\u51b2\u7a81\uff0c\u786e\u4fdd\u4e86\u6570\u636e\u4f20\u8f93\u7684\u7a33\u5b9a\u6027\u548c\u53ef\u9760\u6027\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u5728\u591a\u70b9\u901a\u4fe1\u4e2d\uff0c\u5982\u679c\u68c0\u6d4b\u5230\u8282\u70b9\u5728\u53d1\u9001\u6570\u636e\u65f6\u6709\u5176\u4ed6\u8282\u70b9\u6b63\u5728\u53d1\u9001\u6570\u636e\uff0c\u5219\u968f\u673a\u7b49\u5f85\u4e00\u6bb5\u65f6\u95f4\u540e\u518d\u6b21\u76d1\u542c\uff0c\u4ee5\u907f\u514d\u78b0\u649e\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u9891\u7387\u590d\u7528\uff08FDMA\uff09<\/strong>\uff1a<\/p>\n\n\n\n<p>\u3000\u3000\u9891\u5206\u590d\u7528(FDMA)\u901a\u8fc7\u5c06\u9891\u7387\u5206\u5272\u6210\u591a\u4e2a\u5c0f\u9891\u6bb5\uff0c\u6bcf\u4e2a\u8bbe\u5907\u4f7f\u7528\u4e0d\u540c\u7684\u9891\u6bb5\u8fdb\u884c\u901a\u4fe1\uff0c\u4ece\u800c\u907f\u514d\u51b2\u7a81\u3002\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u7cfb\u7edf\u7684\u6297\u5e72\u6270\u80fd\u529b\u548c\u901a\u4fe1\u6548\u7387\u3002<\/p>\n\n\n\n<p>\u3000\u3000LoRa\u6280\u672f\u901a\u8fc7\u4fe1\u9053\u9884\u6d4b\u548c\u9009\u62e9\u3001ALOHA\u534f\u8bae\u3001CSMA\/CA\u6280\u672f\u3001\u9891\u7387\u6269\u5c55\u548c\u78b0\u649e\u907f\u514d\u6280\u672f\u7b49\u5b9e\u73b0FDMA\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u8df3\u9891\u6280\u672f<\/strong>\uff1a<\/p>\n\n\n\n<p>\u3000\u3000\u8df3\u9891\u6280\u672f\u5728\u591a\u4e2a\u4fe1\u9053\u4e4b\u95f4\u5207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