{"id":100432,"date":"2025-01-14T15:30:40","date_gmt":"2025-01-14T07:30:40","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=100432"},"modified":"2025-01-14T15:30:51","modified_gmt":"2025-01-14T07:30:51","slug":"lzjgjs","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/100432.html","title":{"rendered":"LoRaWAN\u5e27\u7ed3\u6784\u4ecb\u7ecd"},"content":{"rendered":"\n<p>\u3000\u3000<strong>LoRaWAN\u534f\u8bae<\/strong>\u7684<strong>\u5e27\u7ed3\u6784<\/strong>\u662f\u5176\u901a\u4fe1\u673a\u5236\u7684\u6838\u5fc3\u90e8\u5206\uff0c\u7528\u4e8e\u786e\u4fdd\u6570\u636e\u5728\u7269\u8054\u7f51\u8bbe\u5907\u548c\u7f51\u7edc\u670d\u52a1\u5668\u4e4b\u95f4\u53ef\u9760\u4f20\u8f93\u3002\u4ee5\u4e0b\u662fLoRaWAN\u5e27\u7ed3\u6784\u7684\u8be6\u7ec6\u4ecb\u7ecd\uff1a<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u7269\u7406\u5c42\uff08PHY Layer\uff09<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u524d\u5bfc\u7801\uff08Preamble\uff09<\/strong>&nbsp;\uff1a\u7528\u4e8e\u63a5\u6536\u7aef\u4e0e\u53d1\u5c04\u7aef\u7684\u540c\u6b65\uff0c\u901a\u5e38\u7531\u591a\u4e2a\u5347\u4f59\u5f26\u6ce2\u5f62\u7ec4\u6210\uff0c\u957f\u5ea6\u53ef\u53d8\uff0c\u4ee5\u9002\u5e94\u4e0d\u540c\u7684\u4fe1\u9053\u6761\u4ef6\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u7269\u7406\u5934\uff08PHDR\uff09<\/strong>&nbsp;\uff1a\u5305\u542b\u4e00\u4e9b\u63a7\u5236\u4fe1\u606f\uff0c\u5982\u6570\u636e\u901f\u7387\u3001\u6269\u9891\u56e0\u5b50\u7b49\uff0c\u8fd9\u4e9b\u4fe1\u606f\u5f71\u54cd\u6570\u636e\u5305\u7684\u4f20\u8f93\u6027\u80fd\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u7269\u7406\u5c42\u8d1f\u8f7d\uff08PHYPayload\uff09<\/strong>&nbsp;\uff1a\u5305\u62ec\u5b9e\u9645\u7684\u6570\u636e\u6709\u6548\u8f7d\u8377\u548c\u5faa\u73af\u5197\u4f59\u6821\u9a8c(CRC)\uff0c\u7528\u4e8e\u68c0\u6d4b\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u7684\u9519\u8bef\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000<strong>MAC\u5c42\uff08Medium Access Control Layer\uff09<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u6d88\u606f\u5934\uff08MHDR\uff09<\/strong>&nbsp;\uff1a\u5305\u542b\u6d88\u606f\u7c7b\u578b(\u5982JOIN\u8bf7\u6c42\u3001JOIN\u63a5\u53d7\u3001\u6570\u636e\u786e\u8ba4\u7b49)\u548c\u7248\u672c\u53f7\u7b49\u4fe1\u606f\uff0c\u7528\u4e8e\u6807\u8bc6\u6d88\u606f\u7684\u7c7b\u578b\u548c\u534f\u8bae\u7248\u672c\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u8bbe\u5907\u5730\u5740\uff08DevAddr\uff09<\/strong>&nbsp;\uff1a32\u4f4d\u5730\u5740\uff0c\u7528\u4e8e\u552f\u4e00\u6807\u8bc6\u7f51\u7edc\u4e2d\u7684\u6bcf\u4e2a\u7ec8\u7aef\u8bbe\u5907\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u5e27\u63a7\u5236\uff08FCtrl\uff09<\/strong>&nbsp;\uff1a\u5305\u542b\u591a\u4e2a\u5b57\u6bb5\uff0c\u5982\u81ea\u9002\u5e94\u6570\u636e\u901f\u7387(ADR)\u3001\u5e27\u8ba1\u6570\u5668(FCnt)\u3001\u5e27\u9009\u9879(FOpts)\u7b49\uff0c\u7528\u4e8e\u63a7\u5236\u6570\u636e\u4f20\u8f93\u7684\u901f\u7387\u548c\u884c\u4e3a\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u5e27\u8ba1\u6570\u5668\uff08FCnt\uff09<\/strong>&nbsp;\uff1a16\u4f4d\u8ba1\u6570\u5668\uff0c\u7528\u4e8e\u9632\u6b62\u91cd\u653e\u653b\u51fb\uff0c\u6bcf\u4e0a\u884c\u5e27\u9012\u589e\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u5e27\u9009\u9879\uff08FOpts\uff09<\/strong>&nbsp;\uff1a\u53ef\u9009\u5b57\u6bb5\uff0c\u5305\u542bMAC\u547d\u4ee4\u6216\u7279\u5b9a\u901a\u4fe1\u534f\u8bae\u7684\u547d\u4ee4\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u5e27\u7aef\u53e3\uff08FPort\uff09<\/strong>&nbsp;\uff1a\u6307\u793a\u6570\u636e\u5305\u4e2d\u6709\u6548\u8d1f\u8f7d\u7684\u7c7b\u578b\uff0c\u5f53FPort\u4e3a0\u65f6\uff0c\u8868\u793aMAC\u6307\u4ee4;\u5426\u5219\u4e3a\u5e94\u7528\u5c42\u6570\u636e\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u5e94\u7528\u6709\u6548\u8d1f\u8f7d\uff08FRMPayload\uff09<\/strong>&nbsp;\uff1a\u5b9e\u9645\u8981\u4f20\u8f93\u7684\u6570\u636e\u5185\u5bb9\uff0c\u53ef\u4ee5\u662fMAC\u6307\u4ee4\u6216\u5e94\u7528\u6570\u636e\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u6d88\u606f\u5b8c\u6574\u6027\u6821\u9a8c\u7801\uff08MIC\uff09<\/strong>&nbsp;\uff1a\u7528\u4e8e\u9a8c\u8bc1\u6570\u636e\u7684\u5b8c\u6574\u6027\u548c\u9632\u6b62\u7be1\u6539\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000<strong>\u6570\u636e\u5e27\u7ed3\u6784\u793a\u4f8b<\/strong>\uff1a<\/p>\n\n\n\n<p>\u3000\u3000LoRaWAN\u7684\u6570\u636e\u5e27\u901a\u5e38\u7531\u4e0a\u8ff0\u5404\u5c42\u7ec4\u6210\uff0c\u5176\u4e2dMAC\u5c42\u662f\u5173\u952e\u90e8\u5206\uff0c\u8d1f\u8d23\u7ba1\u7406\u6570\u636e\u7684\u6709\u6548\u4f20\u8f93\u548c\u5b89\u5168\u6027\u3002\u4f8b\u5982\uff0c\u5728\u4e0a\u884c\u6570\u636e\u5e27\u4e2d\uff0c\u901a\u5e38\u5305\u542b\u8bbe\u5907\u5730\u5740\u3001\u5e27\u8ba1\u6570\u5668\u3001\u5e27\u9009\u9879\u3001\u5e27\u7aef\u53e3\u548c\u5e94\u7528\u6709\u6548\u8d1f\u8f7d\u7b49\u5b57\u6bb5\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u5728\u4e0b\u884c\u6570\u636e\u5e27\u4e2d\uff0c\u9664\u4e86\u4e0a\u8ff0\u5b57\u6bb5\u5916\uff0c\u8fd8\u53ef\u80fd\u5305\u542b\u989d\u5916\u7684MAC\u6307\u4ee4\uff0c\u7528\u4e8e\u63a7\u5236\u7ec8\u7aef\u8bbe\u5907\u7684\u884c\u4e3a\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u7ec8\u7aef\u7c7b\u578b\u4e0e\u4f20\u8f93\u7b56\u7565<\/strong>\uff1a<\/p>\n\n\n\n<p>\u3000\u3000LoRaWAN\u652f\u6301\u4e09\u79cd\u7ec8\u7aef\u7c7b\u522b\uff1aClass A\u3001Class B\u548cClass C\u3002\u5176\u4e2d\uff0cClass A\u7ec8\u7aef\u4ec5\u5728\u53d1\u9001\u5b8c\u6570\u636e\u540e\u6253\u5f00\u63a5\u6536\u7a97\u53e3\uff0cClass B\u7ec8\u7aef\u5177\u6709\u6301\u7eed\u7684\u63a5\u6536\u7a97\u53e3\uff0c\u800cClass C\u7ec8\u7aef\u5219\u5177\u6709\u6700\u957f\u7684\u63a5\u6536\u65f6\u9699\uff0c\u9002\u7528\u4e8e\u9700\u8981\u9ad8\u53ef\u9760\u6027\u7684\u573a\u666f\u3002<\/p>\n\n\n\n<p>\u3000\u3000LoRaWAN\u534f\u8bae\u901a\u8fc7\u7cbe\u5fc3\u8bbe\u8ba1\u7684\u5e27\u7ed3\u6784\u5b9e\u73b0\u4e86\u4f4e\u529f\u8017\u3001\u8fdc\u8ddd\u79bb\u548c\u4f4e\u901f\u7387\u7684\u6570\u636e\u4f20\u8f93\uff0c\u9002\u7528\u4e8e\u7269\u8054\u7f51\u5e94\u7528\u4e2d\u7684\u5404\u79cd\u573a\u666f\u3002\u8fd9\u79cd\u8bbe\u8ba1\u4e0d\u4ec5\u63d0\u9ad8\u4e86\u901a\u4fe1\u6548\u7387\uff0c\u8fd8\u964d\u4f4e\u4e86\u7cfb\u7edf\u7684\u6574\u4f53\u529f\u8017\u548c\u6210\u672c\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e00\u3001 LoRaWAN\u534f\u8bae\u4e2d\u524d\u5bfc\u7801\u7684\u5177\u4f53\u4f5c\u7528<\/h2>\n\n\n\n<p>\u3000\u3000\u5728<strong>LoRaWAN\u534f\u8bae<\/strong>\u4e2d\uff0c\u524d\u5bfc\u7801(<strong>Preamble<\/strong>)\u626e\u6f14\u7740\u81f3\u5173\u91cd\u8981\u7684\u89d2\u8272\uff0c\u786e\u4fdd\u65e0\u7ebf\u901a\u4fe1\u7684\u7a33\u5b9a\u6027\u4e0e\u53ef\u9760\u6027\u3002\u524d\u5bfc\u7801\u901a\u5e38\u7531\u4e00\u7cfb\u5217\u8fde\u7eed\u7684\u7b26\u53f7\u7ec4\u6210\uff0c\u5176\u4e3b\u8981\u529f\u80fd\u662f\u4e3a\u63a5\u6536\u7aef\u63d0\u4f9b\u5fc5\u8981\u7684\u540c\u6b65\u4fe1\u606f\u3002\u5177\u4f53\u800c\u8a00\uff0c\u5f53\u524d\u5bfc\u7801\u88ab\u53d1\u9001\u65f6\uff0c\u63a5\u6536\u8bbe\u5907\u80fd\u591f\u8bc6\u522b\u51fa\u4f20\u5165\u4fe1\u53f7\u7684\u5f00\u59cb\uff0c\u4ece\u800c\u8fdb\u884c<strong>\u9891\u7387\u540c\u6b65<\/strong>\u548c<strong>\u65f6\u95f4\u540c\u6b65<\/strong>\u3002\u8fd9\u79cd\u540c\u6b65\u673a\u5236\u5bf9\u4e8e\u65e0\u7ebf\u901a\u4fe1\u81f3\u5173\u91cd\u8981\uff0c\u56e0\u4e3a\u5b83\u786e\u4fdd\u4e86\u53d1\u9001\u548c\u63a5\u6536\u8bbe\u5907\u5728\u6b63\u786e\u7684\u65f6\u95f4\u548c\u9891\u7387\u4e0a\u8fdb\u884c\u6570\u636e\u4ea4\u6362\uff0c\u907f\u514d\u4e86\u7531\u4e8e\u4e0d\u540c\u6b65\u5bfc\u81f4\u7684\u6570\u636e\u4e22\u5931\u6216\u8bef\u7801\u73b0\u8c61\u3002\u6b64\u5916\uff0c\u524d\u5bfc\u7801\u7684\u957f\u5ea6\u548c\u7ed3\u6784\u7ecf\u8fc7\u7cbe\u5fc3\u8bbe\u8ba1\uff0c\u4ee5\u9002\u5e94\u4e0d\u540c\u7684\u4fe1\u9053\u6761\u4ef6\u548c\u8bbe\u5907\u8981\u6c42\uff0c\u4ece\u800c\u5728\u591a\u6837\u5316\u7684\u5e94\u7528\u573a\u666f\u4e2d\u4fdd\u6301\u9ad8\u6548\u7684\u901a\u4fe1\u6027\u80fd\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u524d\u5bfc\u7801\u5728<strong>\u4fe1\u53f7\u68c0\u6d4b<\/strong>\u548c<strong>\u4fe1\u566a\u6bd4\uff08SNR\uff09\u4f18\u5316\u4e2d\u53d1\u6325\u7740\u5173\u952e\u4f5c\u7528\u3002\u5728LoRaWAN\u73af\u5883\u4e2d\uff0c\u4fe1\u53f7\u5f80\u5f80\u4f1a\u53d7\u5230\u591a\u8def\u5f84\u6548\u5e94\u3001\u5e72\u6270\u548c\u566a\u58f0\u7684\u5f71\u54cd\uff0c\u5bfc\u81f4\u63a5\u6536\u7aef\u96be\u4ee5\u51c6\u786e\u8bc6\u522b\u6709\u6548\u4fe1\u53f7\u3002\u524d\u5bfc\u7801\u901a\u8fc7\u63d0\u4f9b\u4e00\u4e2a\u660e\u663e\u4e14\u53ef\u9884\u6d4b\u7684\u4fe1\u53f7\u6a21\u5f0f\uff0c\u4f7f\u63a5\u6536\u8bbe\u5907\u80fd\u591f\u66f4\u5bb9\u6613\u5730\u533a\u5206\u6709\u6548\u4fe1\u53f7\u4e0e\u80cc\u666f\u566a\u58f0\uff0c\u4ece\u800c\u63d0\u9ad8\u4e86\u4fe1\u53f7\u68c0\u6d4b\u7684\u51c6\u786e\u6027\u548c\u53ef\u9760\u6027\u3002\u540c\u65f6\uff0c\u524d\u5bfc\u7801\u7684\u8bbe\u8ba1\u8003\u8651\u4e86\u6269\u9891\u56e0\u5b50\uff08Spreading Factor\uff09<\/strong>\uff0c\u901a\u8fc7\u8c03\u6574\u524d\u5bfc\u7801\u7684\u957f\u5ea6\u548c\u91cd\u590d\u6b21\u6570\uff0c\u53ef\u4ee5\u4f18\u5316\u7cfb\u7edf\u5728\u4e0d\u540c\u4fe1\u9053\u6761\u4ef6\u4e0b\u7684\u6027\u80fd\uff0c\u786e\u4fdd\u5728\u4f4e\u4fe1\u566a\u6bd4\u73af\u5883\u4e0b\u4f9d\u7136\u80fd\u591f\u7a33\u5b9a\u5730\u63a5\u6536\u548c\u89e3\u7801\u6570\u636e\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u5728<strong>\u7f51\u7edc\u6269\u5c55\u6027<\/strong>\u548c<strong>\u591a\u8bbe\u5907\u5171\u5b58<\/strong>\u65b9\u9762\uff0c\u524d\u5bfc\u7801\u540c\u6837\u8d77\u5230\u4e86\u91cd\u8981\u4f5c\u7528\u3002LoRaWAN\u901a\u5e38\u5e94\u7528\u4e8e\u5927\u89c4\u6a21\u7269\u8054\u7f51(IoT)\u90e8\u7f72\uff0c\u6210\u5343\u4e0a\u4e07\u7684\u8bbe\u5907\u53ef\u80fd\u5728\u540c\u4e00\u9891\u6bb5\u5185\u8fdb\u884c\u901a\u4fe1\u3002\u524d\u5bfc\u7801\u901a\u8fc7\u63d0\u4f9b\u8db3\u591f\u7684\u524d\u7f6e\u65f6\u95f4\uff0c\u4f7f\u5f97\u63a5\u6536\u8bbe\u5907\u80fd\u591f\u6709\u6548\u5730\u5904\u7406\u6765\u81ea\u4e0d\u540c\u8bbe\u5907\u7684\u4fe1\u53f7\uff0c\u51cf\u5c11\u4e86<strong>\u78b0\u649e<\/strong>\u548c<strong>\u5e72\u6270<\/strong>\u7684\u6982\u7387\u3002\u8fd9\u79cd\u673a\u5236\u4e0d\u4ec5\u63d0\u9ad8\u4e86\u7f51\u7edc\u7684\u5bb9\u91cf\u548c\u6548\u7387\uff0c\u8fd8\u589e\u5f3a\u4e86\u7cfb\u7edf\u5728\u9ad8\u5bc6\u5ea6\u73af\u5883\u4e0b\u7684\u7a33\u5b9a\u6027\u3002\u6b64\u5916\uff0c\u524d\u5bfc\u7801\u7684\u7075\u6d3b\u6027\u4f7f\u5f97LoRaWAN\u80fd\u591f\u9002\u5e94\u4e0d\u540c\u7684\u5e94\u7528\u9700\u6c42\u548c\u7f51\u7edc\u89c4\u6a21\uff0c\u4ece\u800c\u5728\u5404\u79cd\u590d\u6742\u7684\u7269\u8054\u7f51\u90e8\u7f72\u4e2d\u4fdd\u6301\u9ad8\u6548\u7684\u901a\u4fe1\u6027\u80fd\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u6700\u540e\uff0c\u524d\u5bfc\u7801\u5728<strong>\u6297\u5e72\u6270\u80fd\u529b<\/strong>\u548c<strong>\u9519\u8bef\u68c0\u6d4b<\/strong>\u65b9\u9762\u4e5f\u5177\u6709\u663e\u8457\u4f5c\u7528\u3002\u7531\u4e8e\u65e0\u7ebf\u901a\u4fe1\u73af\u5883\u4e2d\u4e0d\u53ef\u907f\u514d\u5730\u5b58\u5728\u5404\u79cd\u5e72\u6270\u6e90\uff0c\u524d\u5bfc\u7801\u901a\u8fc7\u5176\u72ec\u7279\u7684\u7f16\u7801\u548c\u7ed3\u6784\u8bbe\u8ba1\uff0c\u589e\u5f3a\u4e86\u4fe1\u53f7\u7684<strong>\u9c81\u68d2\u6027<\/strong>\uff0c\u4f7f\u5f97\u7cfb\u7edf\u80fd\u591f\u5728\u566a\u58f0\u548c\u5e72\u6270\u5f3a\u70c8\u7684\u73af\u5883\u4e2d\u4f9d\u7136\u4fdd\u6301\u9ad8\u6548\u7684\u6570\u636e\u4f20\u8f93\u3002\u540c\u65f6\uff0c\u524d\u5bfc\u7801\u7684\u91cd\u590d\u548c\u6821\u9a8c\u673a\u5236\u6709\u52a9\u4e8e\u63a5\u6536\u7aef\u8fdb\u884c<strong>\u9519\u8bef\u68c0\u6d4b<\/strong>\uff0c\u8bc6\u522b\u5e76\u7ea0\u6b63\u6f5c\u5728\u7684\u6570\u636e\u4f20\u8f93\u9519\u8bef\uff0c\u4ece\u800c\u63d0\u9ad8\u4e86\u6574\u4f53\u901a\u4fe1\u7684\u53ef\u9760\u6027\u548c\u6570\u636e\u5b8c\u6574\u6027\u3002\u901a\u8fc7\u8fd9\u4e9b\u673a\u5236\uff0cLoRaWAN\u534f\u8bae\u80fd\u591f\u5728\u5404\u79cd\u6076\u52a3\u7684\u65e0\u7ebf\u73af\u5883\u4e2d\u63d0\u4f9b\u7a33\u5b9a\u548c\u53ef\u9760\u7684\u901a\u4fe1\u670d\u52a1\uff0c\u6ee1\u8db3\u7269\u8054\u7f51\u5e94\u7528\u5bf9\u9ad8\u53ef\u9760\u6027\u548c\u9ad8\u5b89\u5168\u6027\u7684\u9700\u6c42\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u524d\u5bfc\u7801\u5728LoRaWAN\u534f\u8bae\u4e2d\u4e0d\u4ec5\u662f\u5b9e\u73b0\u57fa\u672c\u901a\u4fe1\u540c\u6b65\u7684\u57fa\u7840\u8981\u7d20\uff0c\u8fd8\u5728\u4fe1\u53f7\u68c0\u6d4b\u3001\u7f51\u7edc\u6269\u5c55\u6027\u3001\u6297\u5e72\u6270\u80fd\u529b\u7b49\u591a\u4e2a\u65b9\u9762\u53d1\u6325\u7740\u5173\u952e\u4f5c\u7528\u3002\u5176\u7cbe\u5999\u7684\u8bbe\u8ba1\u548c\u591a\u529f\u80fd\u6027\u4f7f\u5f97LoRaWAN\u80fd\u591f\u5728\u590d\u6742\u591a\u53d8\u7684\u7269\u8054\u7f51\u73af\u5883\u4e2d\u4fdd\u6301\u9ad8\u6548\u3001\u7a33\u5b9a\u548c\u53ef\u9760\u7684\u901a\u4fe1\u6027\u80fd\uff0c\u6ee1\u8db3\u73b0\u4ee3\u7269\u8054\u7f51\u5e94\u7528\u5bf9\u5927\u89c4\u6a21\u3001\u4f4e\u529f\u8017\u548c\u9ad8\u53ef\u9760\u6027\u7684\u9700\u6c42\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e8c\u3001 LoRaWAN\u4e2d\u7269\u7406\u5934(PHDR)\u5305\u542b\u54ea\u4e9b\u63a7\u5236\u4fe1\u606f?<\/h2>\n\n\n\n<p>\u3000\u3000\u5728<strong>LoRaWAN<\/strong>\u534f\u8bae\u4e2d\uff0c\u7269\u7406\u5934(<strong>PHDR<\/strong>\uff0cPhysical Header)\u627f\u62c5\u7740\u786e\u4fdd\u65e0\u7ebf\u6570\u636e\u4f20\u8f93\u7684\u57fa\u7840\u529f\u80fd\u3002\u5176\u5185\u5bb9\u5305\u542b\u4e86\u4e00\u7cfb\u5217\u63a7\u5236\u4fe1\u606f\uff0c\u4e3b\u8981\u7528\u4e8e\u5728\u6570\u636e\u5e27\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u5b9e\u73b0\u540c\u6b65\u3001\u52a0\u5bc6\u548c\u6709\u6548\u7684\u7f51\u7edc\u7ba1\u7406\u3002\u5177\u4f53\u6765\u8bf4\uff0cPHDR\u5728LoRaWAN\u7684\u6570\u636e\u4f20\u8f93\u4e2d\uff0c\u8d77\u5230\u4e86\u6807\u8bc6\u5e27\u7c7b\u578b\u3001\u63a7\u5236\u6570\u636e\u4f20\u8f93\u65b9\u5411\u548c\u63d0\u4f9b\u52a0\u5bc6\u652f\u6301\u7b49\u5173\u952e\u4f5c\u7528\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u9996\u5148\uff0c<strong>\u5e27\u540c\u6b65<\/strong>\u662fPHDR\u4e2d\u7684\u4e00\u4e2a\u57fa\u672c\u529f\u80fd\u3002\u4e3a\u4e86\u786e\u4fdd\u6570\u636e\u7684\u6b63\u786e\u63a5\u6536\uff0cPHDR\u4e2d\u5305\u542b\u4e86<strong>\u540c\u6b65\u5b57\uff08Sync Word\uff09<\/strong>\uff0c\u5176\u4e3b\u8981\u4f5c\u7528\u662f\u8ba9\u63a5\u6536\u7aef\u80fd\u591f\u533a\u5206\u4e0d\u540c\u7f51\u7edc\u6216\u901a\u4fe1\u7cfb\u7edf\u7684\u4fe1\u53f7\u3002\u540c\u6b65\u5b57\u4f7f\u5f97\u63a5\u6536\u8bbe\u5907\u80fd\u591f\u5728\u4e0d\u540c\u65f6\u6bb5\u5185\u8bc6\u522b\u5e27\u7684\u5f00\u59cb\uff0c\u4ece\u800c\u540c\u6b65\u63a5\u6536\u548c\u5904\u7406\u6570\u636e\u3002\u7279\u522b\u662f\u5728\u590d\u6742\u7684LoRaWAN\u73af\u5883\u4e2d\uff0c\u591a\u4e2a\u8bbe\u5907\u53ef\u80fd\u4f1a\u5728\u540c\u4e00\u9891\u6bb5\u4e0a\u8fdb\u884c\u901a\u4fe1\uff0cPHDR\u4e2d\u7684\u540c\u6b65\u4fe1\u606f\u80fd\u591f\u6709\u6548\u907f\u514d\u4fe1\u53f7\u51b2\u7a81\u548c\u5e72\u6270\uff0c\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u7684\u53ef\u9760\u6027\u3002\u6b64\u5916\uff0c\u540c\u6b65\u5b57\u8fd8\u4f7f\u5f97\u63a5\u6536\u7aef\u80fd\u591f\u8bc6\u522b\u548c\u6392\u9664\u5916\u6765\u4fe1\u53f7\uff0c\u4fdd\u8bc1\u6570\u636e\u5728\u590d\u6742\u73af\u5883\u4e0b\u7684\u4f20\u8f93\u8d28\u91cf\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u5176\u6b21\uff0cPHDR\u4e2d\u8fd8\u5305\u542b\u4e86<strong>\u5e27\u7c7b\u578b\u6807\u8bc6\u7b26<\/strong>\u3002\u8be5\u6807\u8bc6\u7b26\u533a\u5206\u4e86\u4e0d\u540c\u7c7b\u578b\u7684\u6570\u636e\u5e27\uff0c\u5982\u4e0a\u884c\u6570\u636e\u5e27(uplink)\u548c\u4e0b\u884c\u6570\u636e\u5e27(downlink)\u3002\u4e0a\u884c\u5e27\u7528\u4e8e\u8bbe\u5907\u5411\u7f51\u5173\u53d1\u9001\u6570\u636e\uff0c\u800c\u4e0b\u884c\u5e27\u5219\u7528\u4e8e\u4ece\u7f51\u5173\u5230\u8bbe\u5907\u7684\u901a\u4fe1\u3002\u901a\u8fc7\u533a\u5206\u4e0d\u540c\u7684\u5e27\u7c7b\u578b\uff0cPHDR\u53ef\u4ee5\u5e2e\u52a9\u63a5\u6536\u8bbe\u5907\u6216\u7f51\u5173\u6839\u636e\u5e27\u7684\u65b9\u5411\u6765\u9009\u62e9\u6b63\u786e\u7684\u5904\u7406\u6d41\u7a0b\u3002\u6b64\u5916\uff0c\u5728\u67d0\u4e9bLoRaWAN\u5b9e\u73b0\u4e2d\uff0cPHDR\u8fd8\u53ef\u80fd\u5305\u542b<strong>\u786e\u8ba4\u5e27<\/strong>\u6216<strong>\u91cd\u4f20\u6807\u5fd7<\/strong>\uff0c\u7528\u4e8e\u6307\u793a\u662f\u5426\u9700\u8981\u5bf9\u67d0\u4e2a\u5e27\u8fdb\u884c\u786e\u8ba4\u6216\u91cd\u4f20\u3002\u8fd9\u5bf9\u4e8e\u786e\u4fdd\u6570\u636e\u5728\u65e0\u7ebf\u73af\u5883\u4e2d\u4e0d\u4e22\u5931\u81f3\u5173\u91cd\u8981\uff0c\u5c24\u5176\u662f\u5728\u4f4e\u4fe1\u53f7\u5f3a\u5ea6\u6216\u9ad8\u5e72\u6270\u7684\u6761\u4ef6\u4e0b\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u53e6\u4e00\u4e2a\u5173\u952e\u529f\u80fd\u662fPHDR\u4e2d\u7684<strong>\u52a0\u5bc6\u5bc6\u94a5<\/strong>\u548c<strong>\u8eab\u4efd\u8ba4\u8bc1\u4fe1\u606f<\/strong>\u3002LoRaWAN\u534f\u8bae\u901a\u8fc7\u52a0\u5bc6\u548c\u8ba4\u8bc1\u673a\u5236\u4fdd\u62a4\u6570\u636e\u7684\u673a\u5bc6\u6027\u548c\u5b8c\u6574\u6027\u3002PHDR\u4e2d\u643a\u5e26\u4e86\u5fc5\u8981\u7684<strong>\u4f1a\u8bdd\u5bc6\u94a5<\/strong>\uff0c\u8fd9\u4e9b\u5bc6\u94a5\u5728\u6570\u636e\u5e27\u7684\u53d1\u9001\u548c\u63a5\u6536\u8fc7\u7a0b\u4e2d\u88ab\u7528\u6765\u52a0\u5bc6\u548c\u89e3\u5bc6\u6570\u636e\uff0c\u786e\u4fdd\u6570\u636e\u5728\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u7684\u5b89\u5168\u6027\u3002\u6b64\u5916\uff0cPHDR\u8fd8\u53ef\u80fd\u5305\u62ec\u8bbe\u5907\u7684<strong>\u7f51\u7edc\u8eab\u4efd\u6807\u8bc6\u7b26\uff08DevAddr\uff09<\/strong>\uff0c\u8be5\u6807\u8bc6\u7b26\u7528\u4e8e\u552f\u4e00\u6807\u8bc6\u8bbe\u5907\u8eab\u4efd\uff0c\u5e76\u4e0e\u7f51\u7edc\u4e2d\u7684\u5176\u4ed6\u8bbe\u5907\u533a\u5206\u5f00\u6765\u3002\u8bbe\u5907\u7684\u8eab\u4efd\u8ba4\u8bc1\u6709\u52a9\u4e8e\u9632\u6b62\u672a\u7ecf\u6388\u6743\u7684\u8bbe\u5907\u52a0\u5165\u7f51\u7edc\uff0c\u4fdd\u62a4\u7cfb\u7edf\u514d\u53d7\u5b89\u5168\u5a01\u80c1\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u6700\u540e\uff0cPHDR\u8fd8\u5305\u542b\u4e86<strong>\u7f51\u7edc\u63a7\u5236\u4fe1\u606f<\/strong>\uff0c\u4f8b\u5982\u6570\u636e\u5e27\u7684\u957f\u5ea6\u4fe1\u606f\u548c\u4f20\u8f93\u901f\u7387\u7b49\u3002\u8fd9\u4e9b\u4fe1\u606f\u6709\u52a9\u4e8e\u5728\u7269\u7406\u5c42\u5bf9\u6570\u636e\u5e27\u8fdb\u884c\u6709\u6548\u7684\u8c03\u5ea6\u548c\u7ba1\u7406\u3002\u5728\u4e0d\u540c\u7684\u7f51\u7edc\u62d3\u6251\u7ed3\u6784\u548c\u901a\u4fe1\u73af\u5883\u4e0b\uff0cPHDR\u4e2d\u7684\u63a7\u5236\u4fe1\u606f\u80fd\u591f\u5e2e\u52a9\u63a5\u6536\u7aef\u4e86\u89e3\u6570\u636e\u5e27\u7684\u5927\u5c0f\u3001\u901f\u7387\u4ee5\u53ca\u5176\u4ed6\u4f20\u8f93\u53c2\u6570\uff0c\u4ece\u800c\u4f18\u5316\u7f51\u7edc\u8d44\u6e90\u7684\u4f7f\u7528\u6548\u7387\u3002\u901a\u8fc7\u5bf9\u8fd9\u4e9b\u63a7\u5236\u4fe1\u606f\u7684\u5b9e\u65f6\u5904\u7406\uff0cLoRaWAN\u53ef\u4ee5\u6839\u636e\u7f51\u7edc\u7684\u9700\u6c42\u52a8\u6001\u8c03\u6574\u6570\u636e\u4f20\u8f93\u7b56\u7565\uff0c\u4ee5\u63d0\u9ad8\u6574\u4e2a\u7cfb\u7edf\u7684\u5e26\u5bbd\u5229\u7528\u7387\u548c\u4f20\u8f93\u7a33\u5b9a\u6027\u3002<\/p>\n\n\n\n<p>\u3000\u3000LoRaWAN\u534f\u8bae\u4e2d\u7684\u7269\u7406\u5934(PHDR)\u627f\u62c5\u4e86\u591a\u9879\u5173\u952e\u4efb\u52a1\uff0c\u6db5\u76d6\u4e86\u4ece\u6570\u636e\u5e27\u540c\u6b65\u5230\u7f51\u7edc\u8eab\u4efd\u9a8c\u8bc1\u548c\u6570\u636e\u52a0\u5bc6\u7684\u5404\u4e2a\u65b9\u9762\u3002\u901a\u8fc7\u6709\u6548\u5730\u5d4c\u5165\u8fd9\u4e9b\u63a7\u5236\u4fe1\u606f\uff0cPHDR\u4e3aLoRaWAN\u63d0\u4f9b\u4e86\u9ad8\u6548\u3001\u53ef\u9760\u548c\u5b89\u5168\u7684\u6570\u636e\u4f20\u8f93\u80fd\u529b\uff0c\u4f7f\u5176\u5728\u7269\u8054\u7f51\u5e94\u7528\u4e2d\u80fd\u591f\u5728\u5404\u79cd\u73af\u5883\u6761\u4ef6\u4e0b\u7a33\u5b9a\u8fd0\u884c\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e09\u3001 \u5728LoRaWAN\u534f\u8bae\u4e2d\uff0c\u81ea\u9002\u5e94\u6570\u636e\u901f\u7387(ADR)\u662f\u5982\u4f55\u5de5\u4f5c\u7684?<\/h2>\n\n\n\n<p>\u3000\u3000\u5728<strong>LoRaWAN\u534f\u8bae<\/strong>\u4e2d\uff0c\u81ea\u9002\u5e94\u6570\u636e\u901f\u7387(<strong>Adaptive Data Rate\uff0cADR<\/strong>)\u673a\u5236\u65e8\u5728\u4f18\u5316\u7f51\u7edc\u6027\u80fd\u548c\u5ef6\u957f\u7ec8\u7aef\u8bbe\u5907\u7684\u7535\u6c60\u5bff\u547d\u3002ADR\u901a\u8fc7\u52a8\u6001\u8c03\u6574\u8bbe\u5907\u7684<strong>\u4f20\u8f93\u529f\u7387<\/strong>\u548c<strong>\u6269\u9891\u56e0\u5b50\uff08Spreading Factor\uff0cSF\uff09<\/strong>\uff0c\u5b9e\u73b0\u6570\u636e\u4f20\u8f93\u901f\u7387\u4e0e\u7f51\u7edc\u8986\u76d6\u8303\u56f4\u4e4b\u95f4\u7684\u5e73\u8861\u3002\u8be5\u673a\u5236\u6839\u636e\u8bbe\u5907\u4e0e\u7f51\u5173\u4e4b\u95f4\u7684<strong>\u94fe\u8def\u8d28\u91cf<\/strong>\uff0c\u81ea\u52a8\u9009\u62e9\u6700\u9002\u5408\u7684\u53c2\u6570\uff0c\u4ee5\u786e\u4fdd\u6570\u636e\u4f20\u8f93\u7684\u53ef\u9760\u6027\u548c\u6548\u7387\u3002\u901a\u8fc7\u4f18\u5316\u6570\u636e\u901f\u7387\uff0cADR\u4e0d\u4ec5\u63d0\u5347\u4e86\u7f51\u7edc\u7684\u6574\u4f53\u5bb9\u91cf\uff0c\u8fd8\u51cf\u5c11\u4e86\u8bbe\u5907\u7684\u80fd\u8017\uff0c\u7279\u522b\u9002\u7528\u4e8e\u5927\u89c4\u6a21\u7269\u8054\u7f51(IoT)\u90e8\u7f72\u4e2d\u7684\u4f4e\u529f\u8017\u5e94\u7528\u573a\u666f\u3002<\/p>\n\n\n\n<p>\u3000\u3000ADR\u7684\u5de5\u4f5c\u6d41\u7a0b\u9996\u5148\u4f9d\u8d56\u4e8e\u8bbe\u5907\u4e0e\u7f51\u5173\u4e4b\u95f4\u7684<strong>\u4fe1\u53f7\u8d28\u91cf\u53cd\u9988<\/strong>\u3002\u8bbe\u5907\u5b9a\u671f\u53d1\u9001\u6570\u636e\u5305\uff0c\u7f51\u5173\u63a5\u6536\u540e\u8bc4\u4f30\u4fe1\u53f7\u7684<strong>\u4fe1\u566a\u6bd4\uff08SNR\uff09\u548c\u63a5\u6536\u4fe1\u53f7\u5f3a\u5ea6\u6307\u793a\uff08RSSI\uff09<\/strong>\uff0c\u5e76\u5c06\u8fd9\u4e9b\u4fe1\u606f\u4f20\u9012\u7ed9\u7f51\u7edc\u670d\u52a1\u5668\u3002\u7f51\u7edc\u670d\u52a1\u5668\u57fa\u4e8e\u8fd9\u4e9b\u53cd\u9988\u4fe1\u606f\uff0c\u5229\u7528\u7b97\u6cd5\u52a8\u6001\u8c03\u6574\u8bbe\u5907\u7684\u4f20\u8f93\u53c2\u6570\uff0c\u5982\u964d\u4f4e\u4f20\u8f93\u529f\u7387\u6216\u9009\u62e9\u66f4\u9ad8\u7684\u6570\u636e\u901f\u7387(\u5373\u66f4\u4f4e\u7684\u6269\u9891\u56e0\u5b50)\uff0c\u4ee5\u9002\u5e94\u5f53\u524d\u7684\u94fe\u8def\u6761\u4ef6\u3002\u5f53\u8bbe\u5907\u5904\u4e8e\u826f\u597d\u7684\u4fe1\u9053\u73af\u5883\u4e2d\u65f6\uff0cADR\u4f1a\u9009\u62e9\u8f83\u9ad8\u7684\u6570\u636e\u901f\u7387\uff0c\u4ece\u800c\u7f29\u77ed\u6570\u636e\u4f20\u8f93\u65f6\u95f4\uff0c\u51cf\u5c11\u80fd\u8017;\u53cd\u4e4b\uff0c\u5f53\u94fe\u8def\u8d28\u91cf\u4e0b\u964d\u65f6\uff0cADR\u4f1a\u964d\u4f4e\u6570\u636e\u901f\u7387\uff0c\u4ee5\u63d0\u9ad8\u4f20\u8f93\u7684\u53ef\u9760\u6027\u548c\u8986\u76d6\u8303\u56f4\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u5728<strong>\u94fe\u8def\u9884\u7b97<\/strong>\u548c<strong>\u8986\u76d6\u8303\u56f4<\/strong>\u7684\u7ba1\u7406\u65b9\u9762\uff0cADR\u53d1\u6325\u7740\u5173\u952e\u4f5c\u7528\u3002\u901a\u8fc7\u8c03\u6574\u6269\u9891\u56e0\u5b50\uff0cADR\u80fd\u591f\u5728\u4e0d\u540c\u7684\u8986\u76d6\u9700\u6c42\u548c\u4fe1\u9053\u6761\u4ef6\u4e0b\u4f18\u5316\u6570\u636e\u4f20\u8f93\u3002\u4f8b\u5982\uff0c\u8f83\u4f4e\u7684\u6269\u9891\u56e0\u5b50(\u5982SF7)\u9002\u7528\u4e8e\u8fd1\u8ddd\u79bb\u3001\u9ad8\u6570\u636e\u901f\u7387\u7684\u901a\u4fe1\uff0c\u800c\u8f83\u9ad8\u7684\u6269\u9891\u56e0\u5b50(\u5982SF12)\u5219\u9002\u7528\u4e8e\u8fdc\u8ddd\u79bb\u3001\u4f4e\u6570\u636e\u901f\u7387\u7684\u4f20\u8f93\u3002ADR\u901a\u8fc7\u52a8\u6001\u9009\u62e9\u6700\u9002\u5408\u7684\u6269\u9891\u56e0\u5b50\uff0c\u786e\u4fdd\u8bbe\u5907\u5728\u5404\u79cd\u73af\u5883\u6761\u4ef6\u4e0b\u90fd\u80fd\u5b9e\u73b0\u6700\u4f73\u7684\u901a\u4fe1\u6027\u80fd\u3002\u540c\u65f6\uff0cADR\u8fd8\u8003\u8651\u4e86<strong>\u591a\u5f84\u6548\u5e94<\/strong>\u548c<strong>\u5e72\u6270<\/strong>\u7b49\u56e0\u7d20\uff0c\u8fdb\u4e00\u6b65\u4f18\u5316\u94fe\u8def\u9884\u7b97\uff0c\u63d0\u5347\u6574\u4f53\u7f51\u7edc\u7684\u7a33\u5b9a\u6027\u548c\u53ef\u9760\u6027\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u5c3d\u7ba1ADR\u5728\u63d0\u5347\u7f51\u7edc\u6548\u7387\u548c\u8bbe\u5907\u5bff\u547d\u65b9\u9762\u5177\u6709\u663e\u8457\u4f18\u52bf\uff0c\u4f46\u5176\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u4e5f\u9762\u4e34\u4e00\u4e9b\u6311\u6218\u3002\u9996\u5148\uff0cADR\u4f9d\u8d56\u4e8e\u7cbe\u786e\u7684\u4fe1\u53f7\u8d28\u91cf\u53cd\u9988\u548c\u6709\u6548\u7684\u53c2\u6570\u8c03\u6574\u7b97\u6cd5\uff0c\u4efb\u4f55\u53cd\u9988\u5ef6\u8fdf\u6216\u8bef\u5dee\u90fd\u53ef\u80fd\u5bfc\u81f4\u53c2\u6570\u8bbe\u7f6e\u7684\u4e0d\u5f53\uff0c\u5f71\u54cd\u901a\u4fe1\u8d28\u91cf\u3002\u6b64\u5916\uff0cADR\u7684\u4f18\u5316\u8fc7\u7a0b\u9700\u8981\u4e00\u5b9a\u7684\u7f51\u7edc\u8d44\u6e90\u548c\u8ba1\u7b97\u80fd\u529b\uff0c\u5bf9\u4f4e\u6210\u672c\u6216\u8d44\u6e90\u53d7\u9650\u7684\u8bbe\u5907\u63d0\u51fa\u4e86\u66f4\u9ad8\u7684\u8981\u6c42\u3002\u5c3d\u7ba1\u5982\u6b64\uff0c\u901a\u8fc7\u6301\u7eed\u7684\u7b97\u6cd5\u4f18\u5316\u548c\u786c\u4ef6\u6539\u8fdb\uff0cADR\u5728LoRaWAN\u7f51\u7edc\u4e2d\u7684\u5e94\u7528\u6548\u679c\u4e0d\u65ad\u63d0\u5347\uff0c\u6210\u4e3a\u5b9e\u73b0\u5927\u89c4\u6a21\u3001\u4f4e\u529f\u8017\u7269\u8054\u7f51\u90e8\u7f72\u7684\u91cd\u8981\u6280\u672f\u624b\u6bb5\u3002\u603b\u4f53\u800c\u8a00\uff0cADR\u901a\u8fc7\u667a\u80fd\u5316\u7684\u53c2\u6570\u8c03\u6574\uff0c\u5b9e\u73b0\u4e86\u7f51\u7edc\u8d44\u6e90\u7684\u9ad8\u6548\u5229\u7528\u548c\u8bbe\u5907\u80fd\u8017\u7684\u6709\u6548\u7ba1\u7406\uff0c\u6781\u5927\u5730\u63a8\u52a8\u4e86LoRaWAN\u5728\u5404\u7c7b\u5e94\u7528\u573a\u666f\u4e2d\u7684\u5e7f\u6cdb\u5e94\u7528\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u56db\u3001 LoRaWAN\u7684\u4e09\u79cd\u7ec8\u7aef\u7c7b\u522b(Class A\u3001Class B\u548cClass C)\u5177\u4f53\u6709\u54ea\u4e9b\u533a\u522b?<\/h2>\n\n\n\n<p>\u3000\u3000\u5728<strong>LoRaWAN\u534f\u8bae<\/strong>\u4e2d\uff0c\u7ec8\u7aef\u8bbe\u5907\u6839\u636e\u5176\u901a\u4fe1\u9700\u6c42\u548c\u80fd\u8017\u7279\u6027\u88ab\u5212\u5206\u4e3a\u4e09\u79cd\u7c7b\u522b\uff1a<strong>Class A<\/strong>\u3001<strong>Class B<\/strong>\u548c<strong>Class C<\/strong>\u3002\u6bcf\u79cd\u7c7b\u522b\u5728\u901a\u4fe1\u6a21\u5f0f\u3001\u63a5\u6536\u7a97\u53e3\u7684\u5b89\u6392\u4ee5\u53ca\u529f\u8017\u7ba1\u7406\u65b9\u9762\u5177\u6709\u72ec\u7279\u7684\u7279\u6027\uff0c\u65e8\u5728\u6ee1\u8db3\u4e0d\u540c\u7269\u8054\u7f51\u5e94\u7528\u573a\u666f\u7684\u9700\u6c42\u3002\u7406\u89e3\u8fd9\u4e9b\u7c7b\u522b\u7684\u533a\u522b\u5bf9\u4e8e\u8bbe\u8ba1\u548c\u90e8\u7f72\u9ad8\u6548\u3001\u53ef\u9760\u7684LoRaWAN\u7f51\u7edc\u81f3\u5173\u91cd\u8981\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>Class A<\/strong>\u8bbe\u5907\u662fLoRaWAN\u4e2d\u6700\u57fa\u672c\u548c\u6700\u8282\u80fd\u7684\u7ec8\u7aef\u7c7b\u522b\u3002\u5b83\u4eec\u9075\u5faa\u4e00\u79cd\u201c\u53cc\u5411\u901a\u4fe1\u201d\u6a21\u5f0f\uff0c\u5373\u8bbe\u5907\u5728\u53d1\u9001\u6570\u636e\u540e\u4ec5\u5f00\u542f\u4e24\u4e2a\u77ed\u6682\u7684\u63a5\u6536\u7a97\u53e3\u3002\u8fd9\u79cd\u8bbe\u8ba1\u6781\u5927\u5730\u5ef6\u957f\u4e86\u8bbe\u5907\u7684\u7535\u6c60\u5bff\u547d\uff0c\u56e0\u4e3a\u8bbe\u5907\u5927\u90e8\u5206\u65f6\u95f4\u5904\u4e8e\u4f11\u7720\u72b6\u6001\uff0c\u4ec5\u5728\u5fc5\u8981\u65f6\u5524\u9192\u4ee5\u53d1\u9001\u548c\u63a5\u6536\u6570\u636e\u3002<strong>Class A<\/strong>\u7279\u522b\u9002\u7528\u4e8e\u9700\u8981\u957f\u65f6\u95f4\u8fd0\u884c\u4e14\u6570\u636e\u4f20\u8f93\u9891\u7387\u8f83\u4f4e\u7684\u5e94\u7528\uff0c\u5982\u73af\u5883\u76d1\u6d4b\u548c\u667a\u80fd\u519c\u4e1a\u3002\u5c3d\u7ba1\u5176\u63a5\u6536\u80fd\u529b\u6709\u9650\uff0c\u4f46\u901a\u8fc7\u4f18\u5316\u53d1\u9001\u548c\u63a5\u6536\u7a97\u53e3\u7684\u5b89\u6392\uff0c<strong>Class A<\/strong>\u8bbe\u5907\u80fd\u591f\u5728\u4fdd\u8bc1\u4f4e\u529f\u8017\u7684\u540c\u65f6\uff0c\u6ee1\u8db3\u57fa\u672c\u7684\u6570\u636e\u901a\u4fe1\u9700\u6c42\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u76f8\u6bd4\u4e4b\u4e0b\uff0c<strong>Class B<\/strong>\u8bbe\u5907\u5728<strong>Class A<\/strong>\u7684\u57fa\u7840\u4e0a\u589e\u52a0\u4e86\u4e00\u4e2a\u540c\u6b65\u7684\u63a5\u6536\u80fd\u529b\u3002\u9664\u4e86\u5728\u6bcf\u6b21\u53d1\u9001\u6570\u636e\u540e\u5f00\u542f\u7684\u4e24\u4e2a\u63a5\u6536\u7a97\u53e3\u5916\uff0c<strong>Class B<\/strong>\u8bbe\u5907\u8fd8\u5b9a\u671f\u63a5\u6536\u6765\u81ea\u7f51\u5173\u7684<strong>\u65f6\u95f4\u540c\u6b65\u4fe1\u53f7\uff08ping slots\uff09<\/strong>\u3002\u8fd9\u79cd\u673a\u5236\u5141\u8bb8\u8bbe\u5907\u5728\u9884\u5b9a\u7684\u65f6\u95f4\u7a97\u53e3\u5185\u63a5\u6536\u4e0b\u884c\u6d88\u606f\uff0c\u4ece\u800c\u63d0\u9ad8\u4e86\u63a5\u6536\u7684\u7075\u6d3b\u6027\u548c\u54cd\u5e94\u901f\u5ea6\u3002<strong>Class B<\/strong>\u901a\u8fc7\u5728\u8bbe\u5907\u548c\u7f51\u5173\u4e4b\u95f4\u7ef4\u6301\u65f6\u95f4\u540c\u6b65\uff0c\u786e\u4fdd\u4e86\u8bbe\u5907\u80fd\u591f\u5728\u9884\u5b9a\u7684\u65f6\u95f4\u63a5\u6536\u6570\u636e\uff0c\u800c\u65e0\u9700\u6301\u7eed\u4fdd\u6301\u63a5\u6536\u72b6\u6001\u3002\u8fd9\u79cd\u7279\u6027\u4f7f\u5f97<strong>Class B<\/strong>\u9002\u7528\u4e8e\u9700\u8981\u5b9a\u671f\u63a5\u6536\u6307\u4ee4\u6216\u66f4\u65b0\u7684\u5e94\u7528\u573a\u666f\uff0c\u5982\u667a\u80fd\u7535\u7f51\u548c\u5de5\u4e1a\u81ea\u52a8\u5316\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>Class C<\/strong>\u8bbe\u5907\u5219\u63d0\u4f9b\u4e86\u6700\u5f3a\u7684\u63a5\u6536\u80fd\u529b\uff0c\u5176\u63a5\u6536\u7a97\u53e3\u51e0\u4e4e\u59cb\u7ec8\u4fdd\u6301\u5f00\u542f\u72b6\u6001\uff0c\u53ea\u6709\u5728\u53d1\u9001\u6570\u636e\u65f6\u4e34\u65f6\u5173\u95ed\u3002\u8fd9\u4f7f\u5f97<strong>Class C<\/strong>\u8bbe\u5907\u80fd\u591f\u51e0\u4e4e\u5b9e\u65f6\u5730\u63a5\u6536\u4e0b\u884c\u6d88\u606f\uff0c\u6781\u5927\u5730\u63d0\u9ad8\u4e86\u901a\u4fe1\u7684\u54cd\u5e94\u901f\u5ea6\u548c\u7075\u6d3b\u6027\u3002\u7136\u800c\uff0c\u8fd9\u79cd\u9ad8\u63a5\u6536\u80fd\u529b\u662f\u4ee5\u8f83\u9ad8\u7684\u529f\u8017\u4e3a\u4ee3\u4ef7\u7684\uff0c\u56e0\u4e3a\u8bbe\u5907\u9700\u8981\u6301\u7eed\u4fdd\u6301\u63a5\u6536\u6a21\u5f0f\u3002<strong>Class C<\/strong>\u9002\u7528\u4e8e\u5bf9\u5ef6\u8fdf\u8981\u6c42\u6781\u9ad8\u4e14\u7535\u6e90\u4f9b\u5e94\u5145\u8db3\u7684\u5e94\u7528\uff0c\u5982\u667a\u80fd\u7167\u660e\u548c\u5b9e\u65f6\u76d1\u63a7\u7cfb\u7edf\u3002\u5c3d\u7ba1<strong>Class C<\/strong>\u8bbe\u5907\u7684\u529f\u8017\u8f83\u9ad8\uff0c\u4f46\u5176\u5728\u9700\u8981\u9891\u7e41\u4e0b\u884c\u901a\u4fe1\u7684\u573a\u666f\u4e2d\u8868\u73b0\u51fa\u8272\uff0c\u63d0\u4f9b\u4e86\u5353\u8d8a\u7684\u901a\u4fe1\u6027\u80fd\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>LoRaWAN\u7684\u4e09\u79cd\u7ec8\u7aef\u7c7b\u522b<\/strong>\u901a\u8fc7\u4e0d\u540c\u7684\u901a\u4fe1\u6a21\u5f0f\u548c\u529f\u8017\u7ba1\u7406\u7b56\u7565\uff0c\u6ee1\u8db3\u4e86\u591a\u6837\u5316\u7684\u7269\u8054\u7f51\u5e94\u7528\u9700\u6c42\u3002<strong>Class A<\/strong>\u4ee5\u5176\u4f4e\u529f\u8017\u548c\u7b80\u5355\u7684\u901a\u4fe1\u6a21\u5f0f\u9002\u7528\u4e8e\u957f\u5bff\u547d\u3001\u4f4e\u9891\u7387\u6570\u636e\u4f20\u8f93\u7684\u573a\u666f;<strong>Class B<\/strong>\u901a\u8fc7\u589e\u52a0\u65f6\u95f4\u540c\u6b65\u673a\u5236\uff0c\u63d0\u5347\u4e86\u8bbe\u5907\u7684\u63a5\u6536\u80fd\u529b\uff0c\u9002\u5408\u9700\u8981\u5b9a\u671f\u6307\u4ee4\u7684\u5e94\u7528;\u800c<strong>Class C<\/strong>\u5219\u63d0\u4f9b\u4e86\u51e0\u4e4e\u5b9e\u65f6\u7684\u4e0b\u884c\u901a\u4fe1\u80fd\u529b\uff0c\u9002\u7528\u4e8e\u5bf9\u54cd\u5e94\u65f6\u95f4\u6709\u4e25\u683c\u8981\u6c42\u7684\u9ad8\u529f\u8017\u5e94\u7528\u3002\u9009\u62e9\u5408\u9002\u7684\u7ec8\u7aef\u7c7b\u522b\u4e0d\u4ec5\u4f18\u5316\u4e86\u8bbe\u5907\u7684\u6027\u80fd\u548c\u80fd\u8017\uff0c\u8fd8\u786e\u4fdd\u4e86\u6574\u4e2aLoRaWAN\u7f51\u7edc\u7684\u9ad8\u6548\u8fd0\u884c\u548c\u53ef\u9760\u6027\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e94\u3001 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