{"id":101029,"date":"2025-02-13T15:48:55","date_gmt":"2025-02-13T07:48:55","guid":{"rendered":"\/\/www.viralrail.com\/?p=101029"},"modified":"2025-02-13T15:48:59","modified_gmt":"2025-02-13T07:48:59","slug":"lwxtxmkzljs-2","status":"publish","type":"post","link":"\/\/www.viralrail.com\/blog\/101029.html","title":{"rendered":"LoRa\u65e0\u7ebf\u901a\u4fe1\u6a21\u5757\u6307\u4ee4\u4ecb\u7ecd"},"content":{"rendered":"\n

\u3000\u3000LoRa \u65e0\u7ebf\u901a\u4fe1\u6a21\u5757\u7684\u6307\u4ee4\u4e3b\u8981\u901a\u8fc7 AT \u547d\u4ee4\u8fdb\u884c\u914d\u7f6e\u548c\u63a7\u5236\uff0c\u8fd9\u4e9b\u6307\u4ee4\u6db5\u76d6\u4e86\u8bbe\u5907\u7684\u57fa\u672c\u64cd\u4f5c\u3001\u53c2\u6570\u8bbe\u7f6e\u3001\u901a\u4fe1\u6a21\u5f0f\u8c03\u6574\u4ee5\u53ca\u6570\u636e\u4f20\u8f93\u7b49\u529f\u80fd\u3002\u4ee5\u4e0b\u662f\u5173\u4e8e LoRa \u65e0\u7ebf\u901a\u4fe1\u6a21\u5757\u6307\u4ee4\u7684\u8be6\u7ec6\u4ecb\u7ecd\uff1a<\/p>\n\n\n\n

\u3000\u3000\u57fa\u672c\u6307\u4ee4 AT\uff1a\u7528\u4e8e\u68c0\u6d4b\u6a21\u5757\u662f\u5426\u6b63\u5e38\u5de5\u4f5c\uff0c\u662f\u6240\u6709 AT \u6307\u4ee4\u7684\u5f00\u5934\u6807\u5fd7\u3002 AT+ADDRESS\uff1a\u8bbe\u7f6e\u8282\u70b9\u5730\u5740(ADDRESS)\uff0c\u7528\u4e8e\u6807\u8bc6\u53d1\u9001\u8005\u548c\u63a5\u6536\u8005 \u3002 AT+NETWORKID\uff1a\u8bbe\u7f6e\u7f51\u7edc ID(NETWORKID)\uff0c\u786e\u4fdd\u4e0d\u540c\u7ec4\u7684\u8bbe\u5907\u80fd\u591f\u4e92\u76f8\u901a\u4fe1 \u3002 AT+BAND\uff1a\u8bbe\u7f6e\u65e0\u7ebf\u9891\u6bb5\u4e2d\u5fc3\u9891\u7387(BAND)\uff0c\u7528\u4e8e\u6307\u5b9a\u53d1\u5c04\u65b9\u548c\u63a5\u6536\u65b9\u7684\u901a\u4fe1\u9891\u7387 \u3002 AT+PARAMETER\uff1a\u8bbe\u7f6e RF \u65e0\u7ebf\u53c2\u6570\uff0c\u5305\u62ec\u6269\u9891\u56e0\u5b50(Spreading Factor)\u3001\u5e26\u5bbd(Bandwidth)\u3001\u7f16\u7801\u7387(Coding Rate)\u548c\u9884\u7f6e\u7801(Preamble Length) \u3002<\/p>\n\n\n\n

\u3000\u3000\u5de5\u4f5c\u6a21\u5f0f\u8bbe\u7f6e AT+MODE\uff1a\u8bbe\u7f6e\u6a21\u5757\u7684\u5de5\u4f5c\u6a21\u5f0f\uff0c\u4f8b\u5982\uff1a \u6b63\u5e38\u6a21\u5f0f(Normal Mode) \u7761\u7720\u6a21\u5f0f(Sleep Mode) \u667a\u6167\u63a5\u6536\u7701\u7535\u6a21\u5f0f(Smart Power Save Mode)\u3002 AT+WLTIME\uff1a\u8bbe\u7f6e\u4f11\u7720\u65f6\u95f4(WLTIME)\uff0c\u4f8b\u5982\u8bbe\u7f6e\u4e3a 0 \u8868\u793a\u5173\u95ed\u4f11\u7720\u529f\u80fd\u3002<\/p>\n\n\n\n

\u3000\u3000\u53d1\u5c04\u4e0e\u63a5\u6536\u63a7\u5236 AT+TPOWER\uff1a\u8bbe\u7f6e\u53d1\u5c04\u529f\u7387(TPOWER)\uff0c\u4f8b\u5982\u201cAT+TPOWER=3\u201d\u8868\u793a\u8bbe\u7f6e\u53d1\u5c04\u529f\u7387\u4e3a 3. AT+WLRATE\uff1a\u8bbe\u7f6e\u7a7a\u4e2d\u901f\u7387(WLRATE)\uff0c\u4f8b\u5982\u201cAT+WLRATE=24.1\u201d\u8868\u793a\u8bbe\u7f6e\u7a7a\u4e2d\u901f\u7387\u4e3a 24 kbps\u3002 AT+JOIN\uff1a\u542f\u52a8\u52a0\u5165\u7f51\u7edc\u7684\u8fc7\u7a0b\uff0c\u7528\u4e8e\u8bbe\u5907\u52a0\u5165 LoRa \u7f51\u7edc \u3002 AT+TX\uff1a\u53d1\u9001\u6570\u636e\u5230\u6307\u5b9a\u5730\u5740\uff0c\u4f8b\u5982\u201cTX_LoRa_B6[0x00.0x02.0x01.0x06.0x06.0x0A]\u201d\u8868\u793a\u5411\u5730\u5740 0x06 \u53d1\u9001\u6570\u636e\u3002<\/p>\n\n\n\n

\u3000\u3000\u6570\u636e\u4f20\u8f93\u4e0e\u5b58\u50a8 AT+ \u53c2\u6570\u8bfb\u53d6\u4e0e\u5199\u5165\uff1a\u901a\u8fc7 AT \u6307\u4ee4\u8bfb\u53d6\u6216\u5199\u5165\u6a21\u5757\u7684\u914d\u7f6e\u53c2\u6570\uff0c\u4f8b\u5982\u8bfb\u53d6\u8bbe\u5907\u578b\u53f7\u6216\u8f6f\u4ef6\u7248\u672c\u3002 AT+JOIN status\uff1a\u67e5\u8be2\u52a0\u5165\u7f51\u7edc\u7684\u72b6\u6001 \u3002 AT+RXDATA\uff1a\u63a5\u6536\u6570\u636e\u5e76\u5b58\u50a8\u5230\u6307\u5b9a\u5730\u5740\u3002<\/p>\n\n\n\n

\u3000\u3000\u9ad8\u7ea7\u529f\u80fd \u81ea\u52a8\u91cd\u4f20\u673a\u5236(ARQ) \uff1a\u901a\u8fc7 AT \u6307\u4ee4\u542f\u7528\u6216\u7981\u7528\u81ea\u52a8\u91cd\u4f20\u529f\u80fd \u3002 \u94fe\u8def\u68c0\u6d4b(LBT) \uff1a\u5728\u53d1\u9001\u524d\u68c0\u6d4b\u4fe1\u9053\u73af\u5883\u566a\u58f0\uff0c\u63d0\u9ad8\u901a\u4fe1\u53ef\u9760\u6027\u3002 \u53cc 51 \u73af\u5f62 FIFO\uff1a\u652f\u6301\u6570\u636e\u7684\u5148\u8fdb\u5148\u51fa\u5904\u7406\uff0c\u786e\u4fdd\u6570\u636e\u4f20\u8f93\u7684\u5b8c\u6574\u6027\u3002<\/p>\n\n\n\n

\u3000\u3000\u5176\u4ed6\u5e38\u7528\u6307\u4ee4 AT+RESET\uff1a\u590d\u4f4d\u6a21\u5757\u5230\u521d\u59cb\u72b6\u6001\u3002 AT+JOIN type\uff1a\u9009\u62e9\u52a0\u5165\u7f51\u7edc\u7684\u7c7b\u578b\uff0c\u4f8b\u5982\u661f\u578b\u7f51\u7edc\u6216\u7f51\u72b6\u7f51\u7edc \u3002 AT+JOIN channel\uff1a\u8bbe\u7f6e\u52a0\u5165\u7f51\u7edc\u7684\u4fe1\u9053 \u3002<\/p>\n\n\n\n

\u3000\u3000\u6ce8\u610f\u4e8b\u9879 \u6bcf\u6761 AT \u6307\u4ee4\u5fc5\u987b\u4ee5\u6a21\u5757\u56de\u590d\u201cOK\u201d\u540e\u624d\u80fd\u6267\u884c\u4e0b\u4e00\u4e2a\u6307\u4ee4 \u3002 AT \u6307\u4ee4\u7684\u7ed3\u5c3e\u9700\u8981\u6dfb\u52a0 Enter \u6216 0x0D 0x0A \u3002 \u4e0d\u540c\u578b\u53f7\u7684 LoRa \u6a21\u5757\u53ef\u80fd\u652f\u6301\u4e0d\u540c\u7684 AT \u6307\u4ee4\u96c6\uff0c\u5177\u4f53\u4f7f\u7528\u65f6\u9700\u53c2\u8003\u6a21\u5757\u7684\u6280\u672f\u624b\u518c\u3002<\/p>\n\n\n\n

\u3000\u3000\u5e94\u7528\u573a\u666f LoRa \u6a21\u5757\u5e7f\u6cdb\u5e94\u7528\u4e8e\u7269\u8054\u7f51\u3001\u667a\u80fd\u5bb6\u5c45\u3001\u667a\u6167\u519c\u4e1a\u3001\u8fdc\u7a0b\u6284\u8868\u7b49\u9886\u57df\uff0c\u5176\u4f4e\u529f\u8017\u3001\u8fdc\u8ddd\u79bb\u4f20\u8f93\u7684\u7279\u70b9\u4f7f\u5176\u5728\u5de5\u4e1a\u73af\u5883\u548c\u65e0\u7ebf\u4f20\u611f\u7f51\u7edc\u4e2d\u5177\u6709\u91cd\u8981\u4ef7\u503c\u3002<\/p>\n\n\n\n

\u3000\u3000LoRa \u65e0\u7ebf\u901a\u4fe1\u6a21\u5757\u7684 AT \u6307\u4ee4\u96c6\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u529f\u80fd\uff0c\u7528\u6237\u53ef\u4ee5\u901a\u8fc7\u8fd9\u4e9b\u6307\u4ee4\u5b9e\u73b0\u8bbe\u5907\u7684\u914d\u7f6e\u3001\u901a\u4fe1\u6a21\u5f0f\u8c03\u6574\u4ee5\u53ca\u6570\u636e\u4f20\u8f93\u7b49\u64cd\u4f5c\u3002\u5177\u4f53\u4f7f\u7528\u65f6\u9700\u6839\u636e\u6a21\u5757\u578b\u53f7\u548c\u6280\u672f\u624b\u518c\u9009\u62e9\u5408\u9002\u7684\u6307\u4ee4 \u3002<\/p>\n\n\n\n

\"lora\"<\/figure>\n\n\n\n

\u3000\u3000\u4e00\u3001 LoRa \u6a21\u5757\u7684\u81ea\u52a8\u91cd\u4f20\u673a\u5236(ARQ)\u5177\u4f53\u662f\u5982\u4f55\u5de5\u4f5c\u7684?<\/h2>\n\n\n\n

\u3000\u3000LoRa \u6a21\u5757\u7684\u81ea\u52a8\u91cd\u4f20\u673a\u5236(ARQ)\u662f\u4e00\u79cd\u786e\u4fdd\u6570\u636e\u4f20\u8f93\u53ef\u9760\u6027\u7684\u6280\u672f\uff0c\u5176\u5de5\u4f5c\u539f\u7406\u5982\u4e0b\uff1a<\/p>\n\n\n\n

\u3000\u3000\u57fa\u672c\u6d41\u7a0b ARQ \u673a\u5236\u7684\u6838\u5fc3\u662f\u901a\u8fc7\u63a5\u6536\u7aef\u7684\u786e\u8ba4\u4fe1\u53f7(ACK \u6216 NACK)\u6765\u51b3\u5b9a\u662f\u5426\u9700\u8981\u91cd\u65b0\u53d1\u9001\u6570\u636e\u5305\u3002\u5f53\u53d1\u9001\u65b9(\u5982 LoRa \u8bbe\u5907)\u53d1\u9001\u6570\u636e\u5305\u540e\uff0c\u63a5\u6536\u65b9(\u5982\u7f51\u5173\u6216\u4e2d\u7ee7\u8282\u70b9)\u4f1a\u5c1d\u8bd5\u63a5\u6536\u5e76\u89e3\u7801\u8be5\u6570\u636e\u5305\u3002\u5982\u679c\u63a5\u6536\u6210\u529f\uff0c\u63a5\u6536\u65b9\u4f1a\u53d1\u9001\u4e00\u4e2a ACK \u4fe1\u53f7\u7ed9\u53d1\u9001\u65b9\uff0c\u8868\u793a\u6570\u636e\u5305\u5df2\u6b63\u786e\u63a5\u6536;\u5982\u679c\u63a5\u6536\u5931\u8d25\uff0c\u5219\u53d1\u9001\u4e00\u4e2a NACK \u4fe1\u53f7\uff0c\u63d0\u793a\u53d1\u9001\u65b9\u91cd\u65b0\u53d1\u9001\u6570\u636e\u5305\u3002<\/p>\n\n\n\n

\u3000\u3000\u6570\u636e\u5305\u683c\u5f0f\u4e0e\u6807\u5fd7\u4f4d \u5728 LoRa \u7f51\u7edc\u4e2d\uff0c\u6570\u636e\u5305\u901a\u5e38\u5305\u542b\u591a\u4e2a\u5b57\u6bb5\uff0c\u4f8b\u5982\u5e8f\u5217\u53f7\u3001\u5730\u5740\u6807\u8bc6\u7b26\u3001\u6709\u6548\u8d1f\u8f7d\u548c\u8def\u7531\u8def\u5f84\u7b49\u3002\u5728 ARQ \u673a\u5236\u4e2d\uff0c\u6570\u636e\u5305\u7684\u6807\u5fd7\u4f4d(Flag)\u7528\u4e8e\u6307\u793a\u6570\u636e\u5305\u7684\u7c7b\u578b\u3002\u4f8b\u5982\uff0c\u6807\u5fd7\u503c\u4e3a 3 \u8868\u793a NCK(\u975e\u786e\u8ba4\u6570\u636e\u5305)\uff0c\u5f53\u7ec8\u7aef\u8282\u70b9\u63a5\u6536\u5230 NCK \u6570\u636e\u5305\u65f6\uff0c\u4f1a\u901a\u77e5\u7f51\u5173\u91cd\u4f20\u6570\u636e \u3002<\/p>\n\n\n\n

\u3000\u3000\u91cd\u4f20\u673a\u5236 \u5f53\u63a5\u6536\u7aef\u672a\u80fd\u6210\u529f\u63a5\u6536\u6570\u636e\u5305\u65f6\uff0c\u4f1a\u5411\u53d1\u9001\u7aef\u53d1\u9001 NACK \u4fe1\u53f7\u3002\u53d1\u9001\u7aef\u63a5\u6536\u5230 NACK \u540e\uff0c\u4f1a\u6839\u636e\u9884\u8bbe\u7684\u91cd\u4f20\u6b21\u6570\u548c\u65f6\u95f4\u95f4\u9694\u91cd\u65b0\u53d1\u9001\u6570\u636e\u5305\u3002\u8fd9\u79cd\u673a\u5236\u53ef\u4ee5\u663e\u8457\u51cf\u5c11\u6570\u636e\u4e22\u5931\u7684\u6982\u7387\uff0c\u5e76\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u7684\u53ef\u9760\u6027\u3002<\/p>\n\n\n\n

\u3000\u3000\u5e94\u7528\u573a\u666f\u4e0e\u4f18\u5316 ARQ \u673a\u5236\u5728 LoRa \u7f51\u7edc\u4e2d\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u9700\u8981\u9ad8\u53ef\u9760\u6027\u7684\u573a\u666f\uff0c\u4f8b\u5982\u667a\u80fd\u57ce\u5e02\u548c\u519c\u573a\u73af\u5883\u3002\u7136\u800c\uff0c\u7531\u4e8e LoRa \u6280\u672f\u7684\u4f4e\u529f\u8017\u7279\u6027\uff0c\u5176\u6570\u636e\u901f\u7387\u8f83\u4f4e\uff0c\u56e0\u6b64\u5728\u8bbe\u8ba1 ARQ \u673a\u5236\u65f6\u9700\u8981\u8003\u8651\u51cf\u5c11\u989d\u5916\u7684\u5f00\u9500\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u901a\u8fc7\u4ec5\u5728\u6570\u636e\u5305\u51fa\u9519\u65f6\u53d1\u9001 NCK \u4fe1\u53f7\u6765\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u91cd\u4f20 \u3002<\/p>\n\n\n\n

\u3000\u3000\u4e0e\u5176\u4ed6\u6280\u672f\u7684\u7ed3\u5408 \u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0cARQ \u673a\u5236\u53ef\u4ee5\u4e0e\u5176\u4ed6\u6280\u672f\u7ed3\u5408\u4f7f\u7528\u4ee5\u8fdb\u4e00\u6b65\u63d0\u9ad8\u6027\u80fd\u3002\u4f8b\u5982\uff0c\u901a\u8fc7\u5f15\u5165\u5168\u53cc\u5de5\u901a\u4fe1\u6280\u672f\uff0c\u53ef\u4ee5\u5728\u4e0a\u884c\u94fe\u8def\u548c\u4e0b\u884c\u94fe\u8def\u4e4b\u95f4\u5b9e\u73b0\u66f4\u9ad8\u6548\u7684\u901a\u4fe1\uff0c\u4ece\u800c\u51cf\u5c11\u91cd\u4f20\u5ef6\u8fdf \u3002<\/p>\n\n\n\n

\u3000\u3000\u6311\u6218\u4e0e\u6539\u8fdb \u5c3d\u7ba1 ARQ \u673a\u5236\u80fd\u591f\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u7684\u53ef\u9760\u6027\uff0c\u4f46\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u4ecd\u9762\u4e34\u4e00\u4e9b\u6311\u6218\uff0c\u4f8b\u5982\u4fe1\u53f7\u5e72\u6270\u548c\u4e2d\u7ee7\u8282\u70b9\u7684\u8986\u76d6\u8303\u56f4\u95ee\u9898\u3002\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e9b\u95ee\u9898\uff0c\u53ef\u4ee5\u901a\u8fc7\u4f18\u5316\u4fe1\u9053\u626b\u63cf\u529f\u80fd\u3001\u8c03\u6574\u6570\u636e\u901f\u7387\u4ee5\u53ca\u5f15\u5165\u4e2d\u7ee7\u8282\u70b9\u6765\u6269\u5c55\u8986\u76d6\u8303\u56f4 \u3002<\/p>\n\n\n\n

\u3000\u3000LoRa \u6a21\u5757\u7684\u81ea\u52a8\u91cd\u4f20\u673a\u5236(ARQ)\u901a\u8fc7\u63a5\u6536\u7aef\u7684\u786e\u8ba4\u4fe1\u53f7\u6765\u63a7\u5236\u6570\u636e\u5305\u7684\u91cd\u4f20\uff0c\u4ece\u800c\u786e\u4fdd\u6570\u636e\u4f20\u8f93\u7684\u53ef\u9760\u6027\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e8c\u3001 \u5728\u4e0d\u540c\u5de5\u4f5c\u6a21\u5f0f\u4e0b\uff0cLoRa \u6a21\u5757\u7684\u529f\u8017\u5dee\u5f02\u5177\u4f53\u8868\u73b0\u4e3a\u4f55?<\/h2>\n\n\n\n

\u3000\u3000LoRa \u6a21\u5757\u5728\u4e0d\u540c\u5de5\u4f5c\u6a21\u5f0f\u4e0b\u7684\u529f\u8017\u5dee\u5f02\u4e3b\u8981\u4f53\u73b0\u5728\u5176\u8bbe\u8ba1\u76ee\u6807\u548c\u5e94\u7528\u573a\u666f\u4e2d\u3002\u4ee5\u4e0b\u662f\u57fa\u4e8e\u6211\u641c\u7d22\u5230\u7684\u8d44\u6599\u5bf9\u4e0d\u540c\u5de5\u4f5c\u6a21\u5f0f\u4e0b LoRa \u6a21\u5757\u529f\u8017\u5dee\u5f02\u7684\u5177\u4f53\u8868\u73b0\u7684\u8be6\u7ec6\u5206\u6790\uff1a<\/p>\n\n\n\n

\u3000\u3000\u6b63\u5e38\u5de5\u4f5c\u6a21\u5f0f \u5728\u6b63\u5e38\u5de5\u4f5c\u6a21\u5f0f\u4e0b\uff0cLoRa \u6a21\u5757\u4e3b\u8981\u7528\u4e8e\u6570\u636e\u4f20\u8f93\u6216\u63a5\u6536\uff0c\u6b64\u65f6\u529f\u8017\u8f83\u9ad8\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n

\u3000\u3000\u5728\u6b63\u5e38\u5de5\u4f5c\u6a21\u5f0f\u4e0b\uff0cLoRa \u6a21\u5757\u7684\u53d1\u5c04\u7535\u6d41\u53ef\u8fbe\u51e0\u5341\u6beb\u5b89\u751a\u81f3\u51e0\u767e\u6beb\u5b89\uff0c\u5177\u4f53\u53d6\u51b3\u4e8e\u53d1\u5c04\u529f\u7387\u548c\u5de5\u4f5c\u9891\u7387\u3002\u4f8b\u5982\uff0c\u57fa\u4e8e SX1268 \u82af\u7247\u7684 LoRa \u6a21\u5757\u5728\u6700\u5927\u53d1\u5c04\u529f\u7387(22dBm)\u65f6\uff0c\u77ac\u65f6\u529f\u8017\u53ef\u8fbe 100mA\u3002 \u53d1\u5c04\u529f\u7387\u8d8a\u9ad8\uff0c\u529f\u8017\u4e5f\u8d8a\u9ad8\u3002\u4f8b\u5982\uff0cE22-400T22S \u6a21\u5757\u5728\u914d\u7f6e\u6a21\u5f0f\u4e0b\u7684\u53d1\u5c04\u7535\u6d41\u4e3a 10.817mA\uff0c\u800c\u5728 WOR \u6a21\u5f0f\u4e0b\uff0c\u5e73\u5747\u53d1\u5c04\u7535\u6d41\u4e3a 132.775uA\u3002<\/p>\n\n\n\n

\u3000\u3000\u4f11\u7720\u6a21\u5f0f \u4f11\u7720\u6a21\u5f0f\u662f LoRa \u6a21\u5757\u7684\u4e00\u79cd\u4f4e\u529f\u8017\u72b6\u6001\uff0c\u4e3b\u8981\u7528\u4e8e\u8282\u7701\u80fd\u91cf\u3002\u5728\u4f11\u7720\u6a21\u5f0f\u4e0b\uff0c\u6a21\u5757\u7684\u529f\u8017\u6781\u4f4e\uff0c\u901a\u5e38\u53ea\u6709\u51e0\u5fae\u5b89\u5230\u51e0\u5341\u5fae\u5b89\uff1a<\/p>\n\n\n\n

\u3000\u3000\u4f8b\u5982\uff0cRAK4200+S \u6e29\u6e7f\u5ea6\u4f20\u611f\u5668\u5728\u4f11\u7720\u6a21\u5f0f\u4e0b\u7684\u7535\u6d41\u6d88\u8017\u4ec5\u4e3a 1uA\uff0c\u800c\u5728\u6570\u636e\u91c7\u96c6\u9636\u6bb5\u7684\u53d1\u5c04\u7535\u6d41\u4e3a 10uA\u3002 \u5728\u6df1\u5ea6\u4f11\u7720\u6a21\u5f0f\u4e0b\uff0c\u67d0\u4e9b\u6a21\u5757\u7684\u7535\u6d41\u6d88\u8017\u53ef\u4ee5\u8fdb\u4e00\u6b65\u964d\u4f4e\u81f3\u51e0\u5fae\u5b89\u3002\u4f8b\u5982\uff0cLLCC58 \u5c04\u9891\u6a21\u5757\u5728\u4f11\u7720\u6a21\u5f0f\u4e0b\u7684\u7535\u6d41\u4e3a 4.2mA\u3002<\/p>\n\n\n\n

\u3000\u3000\u5f85\u673a\/\u4f11\u7720\u6a21\u5f0f \u5f85\u673a\u6a21\u5f0f\u662f\u4ecb\u4e8e\u6b63\u5e38\u5de5\u4f5c\u6a21\u5f0f\u548c\u6df1\u5ea6\u4f11\u7720\u6a21\u5f0f\u4e4b\u95f4\u7684\u72b6\u6001\uff0c\u6a21\u5757\u4ecd\u7136\u4fdd\u6301\u4e00\u5b9a\u7684\u529f\u80fd\uff0c\u4f46\u529f\u8017\u8f83\u4f4e\uff1a<\/p>\n\n\n\n

\u3000\u3000\u5728\u5f85\u673a\u6a21\u5f0f\u4e0b\uff0cLoRa \u6a21\u5757\u7684\u529f\u8017\u901a\u5e38\u5728\u51e0\u5341\u5fae\u5b89\u5230\u51e0\u767e\u5fae\u5b89\u4e4b\u95f4\u3002\u4f8b\u5982\uff0c\u67d0\u4e9b\u6a21\u5757\u5728\u5f85\u673a\u6a21\u5f0f\u4e0b\u7684\u7535\u6d41\u6d88\u8017\u4e3a\u51e0\u5fae\u5b89\u3002 \u5f85\u673a\u6a21\u5f0f\u9002\u7528\u4e8e\u9700\u8981\u957f\u65f6\u95f4\u8fd0\u884c\u4f46\u4e0d\u9891\u7e41\u901a\u4fe1\u7684\u5e94\u7528\u573a\u666f\uff0c\u5982\u667a\u6167\u57ce\u5e02\u548c\u519c\u4e1a\u76d1\u6d4b\u3002<\/p>\n\n\n\n

\u3000\u3000\u6df1\u5ea6\u7761\u7720\u6a21\u5f0f \u6df1\u5ea6\u7761\u7720\u6a21\u5f0f\u662f LoRa \u6a21\u5757\u7684\u4e00\u79cd\u8d85\u4f4e\u529f\u8017\u72b6\u6001\uff0c\u9002\u7528\u4e8e\u9700\u8981\u6781\u4f4e\u529f\u8017\u7684\u573a\u666f\uff1a<\/p>\n\n\n\n

\u3000\u3000\u6df1\u5ea6\u7761\u7720\u6a21\u5f0f\u4e0b\u7684\u529f\u8017\u901a\u5e38\u4f4e\u4e8e\u51e0\u5341\u5fae\u5b89\u3002\u4f8b\u5982\uff0c\u67d0\u4e9b\u6a21\u5757\u5728\u6df1\u5ea6\u7761\u7720\u6a21\u5f0f\u4e0b\u7684\u7535\u6d41\u6d88\u8017\u4ec5\u4e3a\u51e0\u5fae\u5b89\u3002 \u8fd9\u79cd\u6a21\u5f0f\u9002\u5408\u4e8e\u7535\u6c60\u5bff\u547d\u8981\u6c42\u6781\u9ad8\u7684\u7269\u8054\u7f51\u8bbe\u5907\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e0d\u540c\u5de5\u4f5c\u6a21\u5f0f\u4e0b\u7684\u529f\u8017\u5bf9\u6bd4 \u4f4e\u529f\u8017\u6a21\u5f0f\uff1aLoRa \u6a21\u5757\u5728\u4f4e\u529f\u8017\u6a21\u5f0f\u4e0b\u80fd\u591f\u5b9e\u73b0\u957f\u65f6\u95f4\u7684\u901a\u4fe1\uff0c\u540c\u65f6\u4fdd\u6301\u8f83\u4f4e\u7684\u529f\u8017\u3002\u4f8b\u5982\uff0cClass A \u8bbe\u5907\u5728\u4f4e\u529f\u8017\u6a21\u5f0f\u4e0b\u7684\u6574\u4f53\u529f\u8017\u6700\u4f4e\u3002 \u9ad8\u529f\u8017\u6a21\u5f0f\uff1a\u5728\u9ad8\u53d1\u5c04\u529f\u7387\u6216\u9ad8\u6570\u636e\u4f20\u8f93\u901f\u7387\u4e0b\uff0cLoRa \u6a21\u5757\u7684\u529f\u8017\u663e\u8457\u589e\u52a0\u3002\u4f8b\u5982\uff0cE22-400T22S \u6a21\u5757\u5728\u6700\u5927\u53d1\u5c04\u529f\u7387\u4e0b\u7684\u529f\u8017\u8f83\u9ad8\u3002<\/p>\n\n\n\n

\u3000\u3000\u5f71\u54cd\u529f\u8017\u7684\u56e0\u7d20 \u9664\u4e86\u5de5\u4f5c\u6a21\u5f0f\u5916\uff0cLoRa \u6a21\u5757\u7684\u529f\u8017\u8fd8\u53d7\u5230\u4ee5\u4e0b\u56e0\u7d20\u7684\u5f71\u54cd\uff1a<\/p>\n\n\n\n

\u3000\u3000\u53d1\u5c04\u529f\u7387\uff1a\u53d1\u5c04\u529f\u7387\u8d8a\u9ad8\uff0c\u529f\u8017\u8d8a\u5927\u3002\u4f8b\u5982\uff0c\u53d1\u5c04\u529f\u7387\u4ece 1W \u589e\u52a0\u5230 2.4W \u65f6\uff0c\u529f\u8017\u4f1a\u663e\u8457\u589e\u52a0\u3002 \u5de5\u4f5c\u9891\u7387\uff1a\u5de5\u4f5c\u9891\u7387\u7684\u53d8\u5316\u4f1a\u5f71\u54cd\u529f\u8017\u3002\u4f8b\u5982\uff0c\u5de5\u4f5c\u9891\u7387\u4ece 2.4GHz \u589e\u52a0\u5230 4.3GHz \u65f6\uff0c\u529f\u8017\u4f1a\u589e\u52a0\u3002 \u6269\u9891\u56e0\u5b50(SF)\u548c\u7f16\u7801\u7387\uff1a\u6269\u9891\u56e0\u5b50\u548c\u7f16\u7801\u7387\u7684\u53d8\u5316\u4e5f\u4f1a\u5f71\u54cd\u529f\u8017\u3002\u4f8b\u5982\uff0c\u6269\u9891\u56e0\u5b50\u4ece 128 \u589e\u52a0\u5230 256 \u65f6\uff0c\u529f\u8017\u4f1a\u589e\u52a0\u3002<\/p>\n\n\n\n

\u3000\u3000\u5e94\u7528\u573a\u666f\u4e2d\u7684\u529f\u8017\u4f18\u5316 LoRa \u6a21\u5757\u7684\u529f\u8017\u4f18\u5316\u7b56\u7565\u56e0\u5e94\u7528\u573a\u666f\u800c\u5f02\uff1a<\/p>\n\n\n\n

\u3000\u3000\u667a\u6167\u57ce\u5e02\uff1a\u9700\u8981\u957f\u65f6\u95f4\u8fd0\u884c\u4e14\u6570\u636e\u4f20\u8f93\u9891\u7387\u8f83\u4f4e\u7684\u5e94\u7528\u573a\u666f\uff0c\u53ef\u4ee5\u901a\u8fc7\u4f18\u5316\u901a\u4fe1\u53c2\u6570\u548c\u8c03\u6574\u4f11\u7720\u65f6\u95f4\u6765\u5ef6\u957f\u7535\u6c60\u5bff\u547d\u3002 \u519c\u4e1a\u5e94\u7528\uff1a\u901a\u8fc7\u5408\u7406\u89c4\u5212\u4f20\u611f\u5668\u7684\u901a\u4fe1\u5468\u671f\u548c\u4f11\u7720\u65f6\u95f4\uff0c\u53ef\u4ee5\u6709\u6548\u964d\u4f4e\u529f\u8017\u3002 \u5de5\u4e1a\u80fd\u6e90\u7ba1\u7406\uff1a\u901a\u8fc7\u5b9e\u65f6\u91c7\u96c6\u548c\u5206\u6790\u80fd\u8017\u6570\u636e\uff0c\u4f18\u5316\u8bbe\u5907\u8fd0\u884c\u7b56\u7565\uff0c\u4ece\u800c\u964d\u4f4e\u6574\u4f53\u80fd\u8017\u3002 LoRa \u6a21\u5757\u5728\u4e0d\u540c\u5de5\u4f5c\u6a21\u5f0f\u4e0b\u7684\u529f\u8017\u5dee\u5f02\u4e3b\u8981\u4f53\u73b0\u5728\u5176\u8bbe\u8ba1\u76ee\u6807\u548c\u5e94\u7528\u573a\u666f\u4e2d\u3002\u6b63\u5e38\u5de5\u4f5c\u6a21\u5f0f\u4e0b\u529f\u8017\u8f83\u9ad8\uff0c\u800c\u4f11\u7720\u6a21\u5f0f\u548c\u6df1\u5ea6\u7761\u7720\u6a21\u5f0f\u5219\u663e\u8457\u964d\u4f4e\u529f\u8017\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e09\u3001 \u5982\u4f55\u6839\u636e\u5e94\u7528\u9700\u6c42\u9009\u62e9 LoRa \u6a21\u5757\u7684\u9891\u6bb5\u4e2d\u5fc3\u9891\u7387(BAND)?<\/h2>\n\n\n\n

\u3000\u3000\u6839\u636e\u5e94\u7528\u9700\u6c42\u9009\u62e9 LoRa \u6a21\u5757\u7684\u9891\u6bb5\u4e2d\u5fc3\u9891\u7387(BAND)\u9700\u8981\u7efc\u5408\u8003\u8651\u591a\u4e2a\u56e0\u7d20\uff0c\u5305\u62ec\u5730\u7406\u4f4d\u7f6e\u3001\u901a\u4fe1\u9700\u6c42\u3001\u9891\u6bb5\u53ef\u7528\u6027\u3001\u6cd5\u89c4\u9650\u5236\u4ee5\u53ca\u5177\u4f53\u5e94\u7528\u573a\u666f\u3002\u4ee5\u4e0b\u662f\u8be6\u7ec6\u7684\u5206\u6790\u548c\u5efa\u8bae\uff1a<\/p>\n\n\n\n

\u3000\u3000\u5730\u7406\u4f4d\u7f6e\u4e0e\u9891\u6bb5\u53ef\u7528\u6027 LoRa \u6280\u672f\u5728\u5168\u7403\u8303\u56f4\u5185\u652f\u6301\u591a\u4e2a\u9891\u6bb5\uff0c\u4e0d\u540c\u5730\u533a\u7684\u53ef\u7528\u9891\u6bb5\u6709\u6240\u4e0d\u540c\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n

\u3000\u3000\u6b27\u6d32\uff1a\u4e3b\u8981\u4f7f\u7528 868 MHz \u9891\u6bb5\u3002 \u4e9a\u6d32\uff1a\u5305\u62ec\u4e2d\u56fd(410-441 MHz)\u3001\u5370\u5ea6(865 MHz)\u7b49 \u3002 \u7f8e\u56fd\uff1a\u4f7f\u7528 915 MHz \u9891\u6bb5 \u3002 \u5176\u4ed6\u5730\u533a\uff1a\u5982\u6fb3\u5927\u5229\u4e9a\u3001\u52a0\u62ff\u5927\u7b49\u4e5f\u6709\u7279\u5b9a\u7684\u9891\u6bb5\u5206\u914d\u3002 \u56e0\u6b64\uff0c\u5728\u9009\u62e9\u9891\u6bb5\u65f6\uff0c\u9996\u5148\u9700\u8981\u786e\u8ba4\u76ee\u6807\u5730\u533a\u7684\u53ef\u7528\u9891\u6bb5\u548c\u6cd5\u89c4\u8981\u6c42\u3002\u4f8b\u5982\uff0c\u5982\u679c\u76ee\u6807\u533a\u57df\u662f\u6b27\u6d32\uff0c\u5219\u5e94\u9009\u62e9 868 MHz \u9891\u6bb5;\u5982\u679c\u662f\u5317\u7f8e\uff0c\u5219\u5e94\u9009\u62e9 915 MHz \u9891\u6bb5\u3002<\/p>\n\n\n\n

\u3000\u3000\u901a\u4fe1\u9700\u6c42\u4e0e\u8986\u76d6\u8303\u56f4 LoRa \u6280\u672f\u9002\u7528\u4e8e\u8fdc\u8ddd\u79bb\u901a\u4fe1\uff0c\u4f46\u4e0d\u540c\u9891\u6bb5\u7684\u8986\u76d6\u8303\u56f4\u548c\u7a7f\u900f\u80fd\u529b\u4f1a\u6709\u6240\u4e0d\u540c\uff1a<\/p>\n\n\n\n

\u3000\u3000\u4f4e\u9891\u6bb5(\u5982 433 MHz) \uff1a\u9002\u7528\u4e8e\u77ed\u8ddd\u79bb\u901a\u4fe1\uff0c\u4f46\u7a7f\u900f\u80fd\u529b\u5f3a\uff0c\u9002\u5408\u5ba4\u5185\u6216\u969c\u788d\u7269\u8f83\u591a\u7684\u73af\u5883\u3002 \u4e2d\u9ad8\u9891\u6bb5(\u5982 868 MHz \u548c 915 MHz) \uff1a\u9002\u7528\u4e8e\u4e2d\u8fdc\u8ddd\u79bb\u901a\u4fe1\uff0c\u7a7f\u900f\u80fd\u529b\u8f83\u5f31\uff0c\u9002\u5408\u5f00\u9614\u5730\u5e26\u3002 \u9ad8\u9891\u6bb5(\u5982 915 MHz) \uff1a\u9002\u7528\u4e8e\u66f4\u8fdc\u8ddd\u79bb\u7684\u901a\u4fe1\uff0c\u4f46\u53ef\u80fd\u53d7\u5230\u5efa\u7b51\u7269\u548c\u5176\u4ed6\u969c\u788d\u7269\u7684\u5e72\u6270 \u3002 \u6839\u636e\u5177\u4f53\u5e94\u7528\u573a\u666f(\u5982\u5ba4\u5185\u5916\u901a\u4fe1\u3001\u57ce\u5e02\u6216\u4e61\u6751\u73af\u5883)\uff0c\u53ef\u4ee5\u9009\u62e9\u76f8\u5e94\u7684\u9891\u6bb5\u4ee5\u4f18\u5316\u901a\u4fe1\u6027\u80fd\u3002<\/p>\n\n\n\n

\u3000\u3000\u6cd5\u89c4\u9650\u5236\u4e0e\u5408\u89c4\u6027 \u4e0d\u540c\u56fd\u5bb6\u548c\u5730\u533a\u5bf9 LoRa \u9891\u6bb5\u7684\u4f7f\u7528\u6709\u4e25\u683c\u7684\u6cd5\u89c4\u9650\u5236\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n

\u3000\u3000\u6b27\u6d32\u7684 868 MHz \u9891\u6bb5\u53d7\u5230 ETSI(\u6b27\u6d32\u7535\u4fe1\u6807\u51c6\u534f\u4f1a)\u7684\u4e25\u683c\u76d1\u7ba1\uff0c\u5141\u8bb8\u7684\u6700\u5927\u5e26\u5bbd\u4e3a 125 kHz\u3001250 kHz \u6216 500 kHz \u3002 \u7f8e\u56fd\u7684 915 MHz \u9891\u6bb5\u5219\u7531 FCC(\u8054\u90a6\u901a\u4fe1\u59d4\u5458\u4f1a)\u7ba1\u7406\uff0c\u5141\u8bb8\u7684\u6700\u5927\u5e26\u5bbd\u4e3a 500 kHz \u3002 \u5728\u9009\u62e9\u9891\u6bb5\u65f6\uff0c\u5fc5\u987b\u786e\u4fdd\u6240\u9009\u9891\u6bb5\u7b26\u5408\u5f53\u5730\u6cd5\u89c4\u8981\u6c42\uff0c\u907f\u514d\u56e0\u8fdd\u89c4\u4f7f\u7528\u800c\u88ab\u7f5a\u6b3e\u6216\u7981\u6b62\u4f7f\u7528\u3002<\/p>\n\n\n\n

\u3000\u3000\u5177\u4f53\u5e94\u7528\u573a\u666f LoRa \u6a21\u5757\u7684\u5e94\u7528\u573a\u666f\u591a\u6837\uff0c\u4e0d\u540c\u573a\u666f\u5bf9\u9891\u6bb5\u7684\u9009\u62e9\u4e5f\u6709\u4e0d\u540c\u7684\u8981\u6c42\uff1a<\/p>\n\n\n\n

\u3000\u3000\u519c\u4e1a\u76d1\u6d4b\uff1a\u901a\u5e38\u9700\u8981\u957f\u8ddd\u79bb\u901a\u4fe1\uff0c\u9002\u5408\u9009\u62e9 868 MHz \u6216 915 MHz \u9891\u6bb5\u3002 \u5de5\u4e1a\u63a7\u5236\uff1a\u53ef\u80fd\u9700\u8981\u5728\u590d\u6742\u73af\u5883\u4e2d\u5de5\u4f5c\uff0c\u4f4e\u9891\u6bb5(\u5982 433 MHz)\u53ef\u80fd\u66f4\u9002\u5408\u3002 \u667a\u6167\u57ce\u5e02\uff1a\u9700\u8981\u8986\u76d6\u5e7f\u6cdb\u7684\u533a\u57df\uff0c\u9ad8\u9891\u6bb5(\u5982 915 MHz)\u53ef\u80fd\u66f4\u5408\u9002 \u3002<\/p>\n\n\n\n

\u3000\u3000\u6280\u672f\u7075\u6d3b\u6027\u4e0e\u672a\u6765\u6269\u5c55 \u73b0\u4ee3 LoRa \u6a21\u5757\u901a\u5e38\u652f\u6301\u591a\u9891\u6bb5\u5207\u6362\uff0c\u8fd9\u4e3a\u672a\u6765\u7684\u6280\u672f\u5347\u7ea7\u548c\u6269\u5c55\u63d0\u4f9b\u4e86\u4fbf\u5229\u3002\u4f8b\u5982\uff0c\u67d0\u4e9b\u6a21\u5757\u53ef\u4ee5\u901a\u8fc7\u56fa\u4ef6\u5347\u7ea7\u652f\u6301\u65b0\u7684\u9891\u6bb5\u3002\u6b64\u5916\uff0c\u53ef\u91cd\u6784\u5929\u7ebf\u6280\u672f\u7684\u53d1\u5c55\u4e5f\u4f7f\u5f97 LoRa \u6a21\u5757\u80fd\u591f\u9002\u5e94\u4e0d\u540c\u7684\u9891\u6bb5\u9700\u6c42 \u3002<\/p>\n\n\n\n

\u3000\u3000\u6210\u672c\u4e0e\u6027\u80fd\u5e73\u8861 \u4e0d\u540c\u9891\u6bb5\u7684\u6a21\u5757\u5728\u6210\u672c\u548c\u6027\u80fd\u4e0a\u53ef\u80fd\u5b58\u5728\u5dee\u5f02\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n

\u3000\u3000\u4f4e\u9891\u6bb5\u6a21\u5757\uff1a\u6210\u672c\u8f83\u4f4e\uff0c\u4f46\u4f20\u8f93\u8ddd\u79bb\u6709\u9650\u3002 \u9ad8\u9891\u6bb5\u6a21\u5757\uff1a\u6210\u672c\u8f83\u9ad8\uff0c\u4f46\u652f\u6301\u66f4\u8fdc\u7684\u4f20\u8f93\u8ddd\u79bb\u548c\u66f4\u9ad8\u7684\u6570\u636e\u901f\u7387\u3002 \u6839\u636e\u9884\u7b97\u548c\u6027\u80fd\u9700\u6c42\uff0c\u5728\u6ee1\u8db3\u6cd5\u89c4\u8981\u6c42\u7684\u524d\u63d0\u4e0b\uff0c\u9009\u62e9\u6027\u4ef7\u6bd4\u6700\u9ad8\u7684\u9891\u6bb5\u3002<\/p>\n\n\n\n

\u3000\u3000\u7ed3\u8bba \u9009\u62e9 LoRa \u6a21\u5757\u7684\u9891\u6bb5\u4e2d\u5fc3\u9891\u7387(BAND)\u9700\u8981\u7efc\u5408\u8003\u8651\u5730\u7406\u4f4d\u7f6e\u3001\u901a\u4fe1\u9700\u6c42\u3001\u6cd5\u89c4\u9650\u5236\u548c\u5177\u4f53\u5e94\u7528\u573a\u666f\u3002\u4f8b\u5982\uff0c\u6b27\u6d32\u7528\u6237\u5e94\u9009\u62e9 868 MHz \u9891\u6bb5\uff0c\u5317\u7f8e\u7528\u6237\u5e94\u9009\u62e9 915 MHz \u9891\u6bb5\u3002<\/p>\n\n\n\n

\u3000\u3000\u56db\u3001 LoRa \u6a21\u5757\u5728\u667a\u6167\u519c\u4e1a\u4e2d\u7684\u5e94\u7528\u6848\u4f8b\u6709\u54ea\u4e9b?<\/h2>\n\n\n\n

\u3000\u3000LoRa \u6a21\u5757\u5728\u667a\u6167\u519c\u4e1a\u4e2d\u7684\u5e94\u7528\u6848\u4f8b\u975e\u5e38\u5e7f\u6cdb\uff0c\u6db5\u76d6\u4e86\u73af\u5883\u76d1\u6d4b\u3001\u52a8\u690d\u7269\u4fe1\u606f\u68c0\u6d4b\u3001\u667a\u80fd\u704c\u6e89\u7cfb\u7edf\u3001\u6e29\u5ba4\u4fe1\u606f\u76d1\u6d4b\u7b49\u591a\u4e2a\u65b9\u9762\u3002\u4ee5\u4e0b\u662f\u57fa\u4e8e\u6211\u641c\u7d22\u5230\u7684\u8d44\u6599\u6574\u7406\u51fa\u7684\u5177\u4f53\u5e94\u7528\u6848\u4f8b\uff1a<\/p>\n\n\n\n

\u3000\u3000\u73af\u5883\u76d1\u6d4b LoRa \u6280\u672f\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u519c\u4e1a\u73af\u5883\u76d1\u6d4b\uff0c\u5305\u62ec\u571f\u58e4\u6e7f\u5ea6\u3001\u6c14\u8c61\u6570\u636e(\u5982\u6e29\u5ea6\u3001\u6e7f\u5ea6\u3001\u98ce\u901f\u7b49)\u7684\u5b9e\u65f6\u76d1\u6d4b\u3002\u901a\u8fc7\u90e8\u7f72 LoRa \u4f20\u611f\u5668\u8282\u70b9\uff0c\u53ef\u4ee5\u5b9e\u73b0\u5bf9\u519c\u7530\u73af\u5883\u7684\u7cbe\u51c6\u611f\u77e5\uff0c\u4ece\u800c\u4e3a\u519c\u4e1a\u751f\u4ea7\u63d0\u4f9b\u79d1\u5b66\u4f9d\u636e\u3002<\/p>\n\n\n\n

\u3000\u3000\u52a8\u690d\u7269\u4fe1\u606f\u68c0\u6d4b \u5728\u755c\u7267\u4e1a\u4e2d\uff0cLoRa \u6a21\u5757\u88ab\u7528\u4e8e\u7272\u755c\u7684\u5065\u5eb7\u76d1\u6d4b\u548c\u5b9a\u4f4d\u3002\u4f8b\u5982\uff0c\u5728\u725b\u8eab\u4e0a\u5b89\u88c5 LoRa \u6a21\u5757\uff0c\u53ef\u4ee5\u5b9e\u73b0\u5bf9\u725b\u7684\u5b9a\u4f4d\u3001\u53d1\u60c5\u72b6\u6001\u76d1\u6d4b\u4ee5\u53ca\u5065\u5eb7\u72b6\u51b5\u7684\u5b9e\u65f6\u8ddf\u8e2a\uff0c\u4ece\u800c\u63d0\u9ad8\u7e41\u6b96\u6548\u7387\u548c\u51cf\u5c11\u75be\u75c5\u98ce\u9669\u3002\u6b64\u5916\uff0cLoRa \u6280\u672f\u8fd8\u88ab\u5e94\u7528\u4e8e\u519c\u4f5c\u7269\u7684\u751f\u957f\u76d1\u6d4b\uff0c\u901a\u8fc7\u65e0\u7ebf\u4f20\u611f\u5668\u7f51\u7edc\u6536\u96c6\u6570\u636e\uff0c\u5e2e\u52a9\u519c\u6c11\u4f18\u5316\u79cd\u690d\u7b56\u7565 \u3002<\/p>\n\n\n\n

\u3000\u3000\u667a\u80fd\u704c\u6e89\u7cfb\u7edf LoRa \u6280\u672f\u5728\u667a\u80fd\u704c\u6e89\u7cfb\u7edf\u4e2d\u7684\u5e94\u7528\u5c24\u4e3a\u7a81\u51fa\u3002\u901a\u8fc7\u90e8\u7f72 LoRa \u4f20\u611f\u5668\uff0c\u53ef\u4ee5\u5b9e\u65f6\u76d1\u6d4b\u571f\u58e4\u6e7f\u5ea6\u548c\u4f5c\u7269\u9700\u6c34\u91cf\uff0c\u4ece\u800c\u5b9e\u73b0\u7cbe\u51c6\u704c\u6e89\u3002\u8fd9\u4e0d\u4ec5\u63d0\u9ad8\u4e86\u6c34\u8d44\u6e90\u7684\u5229\u7528\u6548\u7387\uff0c\u8fd8\u51cf\u5c11\u4e86\u80fd\u6e90\u6d6a\u8d39\u3002<\/p>\n\n\n\n

\u3000\u3000\u6e29\u5ba4\u4fe1\u606f\u76d1\u6d4b \u5728\u6e29\u5ba4\u519c\u4e1a\u4e2d\uff0cLoRa \u6280\u672f\u88ab\u7528\u4e8e\u76d1\u6d4b\u6e29\u5ba4\u5185\u7684\u6e29\u5ea6\u3001\u6e7f\u5ea6\u3001\u5149\u7167\u7b49\u73af\u5883\u53c2\u6570\u3002\u901a\u8fc7\u5b9e\u65f6\u6570\u636e\u91c7\u96c6\u548c\u5206\u6790\uff0c\u53ef\u4ee5\u4f18\u5316\u6e29\u5ba4\u5185\u7684\u751f\u957f\u6761\u4ef6\uff0c\u63d0\u9ad8\u4f5c\u7269\u4ea7\u91cf\u548c\u8d28\u91cf\u3002<\/p>\n\n\n\n

\u3000\u3000\u8fdc\u7a0b\u76d1\u63a7\u4e0e\u7ba1\u7406 \u57fa\u4e8e LoRa \u6280\u672f\u7684\u667a\u6167\u519c\u4e1a\u7ba1\u7406\u7cfb\u7edf\u80fd\u591f\u5b9e\u73b0\u8fdc\u7a0b\u76d1\u63a7\u548c\u81ea\u52a8\u5316\u63a7\u5236\u3002\u4f8b\u5982\uff0c\u901a\u8fc7 LoRa \u6a21\u5757\u8fde\u63a5\u7684\u4f20\u611f\u5668\u53ef\u4ee5\u5c06\u6570\u636e\u4f20\u8f93\u5230\u4e91\u7aef\u6216\u672c\u5730\u670d\u52a1\u5668\uff0c\u4f9b\u519c\u6c11\u5b9e\u65f6\u67e5\u770b\u548c\u7ba1\u7406\u3002<\/p>\n\n\n\n

\u3000\u3000\u7cbe\u51c6\u519c\u4e1a\u4e0e\u5927\u6570\u636e\u5206\u6790 LoRa \u6280\u672f\u7ed3\u5408\u5927\u6570\u636e\u5206\u6790\uff0c\u53ef\u4ee5\u4e3a\u519c\u4e1a\u751f\u4ea7\u63d0\u4f9b\u7cbe\u51c6\u7684\u79cd\u690d\u5efa\u8bae\u3002\u4f8b\u5982\uff0c\u901a\u8fc7\u6536\u96c6\u548c\u5206\u6790\u571f\u58e4\u548c\u73af\u5883\u6570\u636e\uff0c\u53ef\u4ee5\u4f18\u5316\u4f5c\u7269\u7c7b\u578b\u548c\u4ea7\u91cf\uff0c\u540c\u65f6\u51cf\u5c11\u8d44\u6e90\u6d6a\u8d39 \u3002<\/p>\n\n\n\n

\u3000\u3000\u6848\u4f8b\u7814\u7a76<\/p>\n\n\n\n

\u3000\u3000\u5728\u897f\u73ed\u7259 Riba\/Dkria \u5730\u533a\u7684\u8461\u8404\u56ed\u4e2d\uff0cLoRaWAN \u6280\u672f\u88ab\u7528\u4e8e\u90e8\u7f72\u65e0\u7ebf\u4f20\u611f\u5668\u8282\u70b9\uff0c\u6536\u96c6\u571f\u58e4\u548c\u5927\u6c14\u6570\u636e\uff0c\u5e76\u901a\u8fc7\u4e91\u5e73\u53f0\u8fdb\u884c\u5206\u6790 \u3002 \u5728\u4e2d\u56fd\uff0c\u57fa\u4e8e LoRa \u6280\u672f\u7684\u667a\u6167\u519c\u4e1a\u7cfb\u7edf\u5df2\u7ecf\u5728\u591a\u4e2a\u519c\u573a\u8fdb\u884c\u4e86\u5927\u89c4\u6a21\u6d4b\u8bd5\u548c\u90e8\u7f72\uff0c\u9a8c\u8bc1\u4e86\u5176\u5728\u5b9e\u65f6\u4fe1\u606f\u83b7\u53d6\u3001\u73af\u5883\u53c2\u6570\u8c03\u6574\u548c\u4f5c\u7269\u75c5\u866b\u5bb3\u7ba1\u7406\u65b9\u9762\u7684\u6709\u6548\u6027 \u3002 \u672a\u6765\u5c55\u671b \u968f\u7740\u6280\u672f\u7684\u6210\u719f\u548c\u6210\u672c\u7684\u964d\u4f4e\uff0cLoRa \u6280\u672f\u5c06\u5728\u667a\u6167\u519c\u4e1a\u4e2d\u53d1\u6325\u66f4\u5927\u7684\u4f5c\u7528\u3002\u672a\u6765\uff0c\u519c\u6c11\u53ef\u80fd\u4f1a\u5206\u9636\u6bb5\u90e8\u7f72\u66f4\u591a\u57fa\u4e8e LoRa \u7684\u7269\u8054\u7f51\u8bbe\u5907\uff0c\u63a8\u52a8\u667a\u6167\u519c\u4e1a\u5411\u9884\u6d4b\u6027\u519c\u4e1a\u8f6c\u53d8\u3002<\/p>\n\n\n\n

\u3000\u3000LoRa \u6a21\u5757\u5728\u667a\u6167\u519c\u4e1a\u4e2d\u7684\u5e94\u7528\u6848\u4f8b\u4e30\u5bcc\u591a\u6837\uff0c\u6db5\u76d6\u4e86\u4ece\u73af\u5883\u76d1\u6d4b\u5230\u7cbe\u51c6\u704c\u6e89\u3001\u4ece\u52a8\u690d\u7269\u5065\u5eb7\u76d1\u6d4b\u5230\u8fdc\u7a0b\u7ba1\u7406\u7b49\u591a\u4e2a\u9886\u57df\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e94\u3001 LoRa \u6a21\u5757\u4e0e\u4f20\u7edf\u65e0\u7ebf\u901a\u4fe1\u6280\u672f\u76f8\u6bd4\uff0c\u6709\u54ea\u4e9b\u72ec\u7279\u4f18\u52bf\u548c\u5c40\u9650\u6027?<\/h2>\n\n\n\n

\u3000\u3000LoRa \u6a21\u5757\u4e0e\u4f20\u7edf\u65e0\u7ebf\u901a\u4fe1\u6280\u672f\u76f8\u6bd4\uff0c\u5177\u6709\u4ee5\u4e0b\u72ec\u7279\u4f18\u52bf\u548c\u5c40\u9650\u6027\uff1a<\/p>\n\n\n\n

\u3000\u3000\u72ec\u7279\u4f18\u52bf\uff1a \u8fdc\u8ddd\u79bb\u4f20\u8f93 LoRa \u6280\u672f\u901a\u8fc7\u6269\u9891\u8c03\u5236(Chirp Spread Spectrum, CSS)\u5b9e\u73b0\u4e86\u8fdc\u8ddd\u79bb\u901a\u4fe1\u3002\u5728\u540c\u7b49\u529f\u7387\u4e0b\uff0cLoRa \u6a21\u5757\u7684\u4f20\u8f93\u8ddd\u79bb\u53ef\u4ee5\u8fbe\u5230\u6570\u516c\u91cc\u751a\u81f3\u6570\u5341\u516c\u91cc\uff0c\u8fdc\u8d85\u4f20\u7edf\u65e0\u7ebf\u901a\u4fe1\u6280\u672f\u3002\u4f8b\u5982\uff0c\u5728\u5f00\u9614\u5730\u5e26\uff0cLoRa \u6a21\u5757\u7684\u4f20\u8f93\u8ddd\u79bb\u53ef\u8fbe 8Km\u3002<\/p>\n\n\n\n

\u3000\u3000\u4f4e\u529f\u8017 LoRa \u6280\u672f\u652f\u6301\u957f\u65f6\u95f4\u4f4e\u529f\u8017\u8fd0\u884c\uff0c\u975e\u5e38\u9002\u5408\u7535\u6c60\u4f9b\u7535\u8bbe\u5907\u3002\u5176\u63a5\u6536\u7535\u6d41\u4f4e\u81f3 10MA\uff0c\u53d1\u9001\u7535\u6d41\u5c0f\u4e8e 200NA\uff0c\u663e\u8457\u964d\u4f4e\u4e86\u80fd\u8017 \u3002\u8fd9\u79cd\u7279\u6027\u4f7f\u5f97 LoRa \u6a21\u5757\u7279\u522b\u9002\u5408\u7269\u8054\u7f51\u4e2d\u7684\u8fdc\u7a0b\u4f20\u611f\u5668\u5e94\u7528 \u3002<\/p>\n\n\n\n

\u3000\u3000\u6297\u5e72\u6270\u80fd\u529b\u5f3a LoRa \u6280\u672f\u91c7\u7528 CSS \u8c03\u5236\u65b9\u5f0f\uff0c\u80fd\u591f\u6709\u6548\u62b5\u6297\u591a\u5f84\u8870\u843d\u548c\u9891\u7387\u9009\u62e9\u6027\u8870\u843d\uff0c\u63d0\u9ad8\u4e86\u901a\u4fe1\u7684\u53ef\u9760\u6027 \u3002\u6b64\u5916\uff0cLoRa \u7684\u7075\u654f\u5ea6\u9ad8\u8fbe-139dBm\uff0c\u6bd4\u4f20\u7edf\u8c03\u5236\u65b9\u5f0f\u66f4\u5f3a\u3002<\/p>\n\n\n\n

\u3000\u3000\u9ad8\u6297\u5e72\u6270\u6027 LoRa \u6280\u672f\u5bf9\u5f3a\u5e26\u5916\u4fe1\u53f7\u7684\u6297\u5e72\u6270\u80fd\u529b\u662f\u4f20\u7edf UHF \u6216 RFID \u7684 20 \u500d\uff0c\u8fd9\u4f7f\u5f97\u5176\u5728\u590d\u6742\u73af\u5883\u4e2d\u4f9d\u7136\u80fd\u591f\u4fdd\u6301\u7a33\u5b9a\u7684\u901a\u4fe1 \u3002<\/p>\n\n\n\n

\u3000\u3000\u53cc\u5411\u901a\u4fe1\u80fd\u529b LoRa \u6280\u672f\u652f\u6301\u53cc\u5411\u901a\u4fe1\uff0c\u9002\u7528\u4e8e\u9700\u8981\u6570\u636e\u4ea4\u4e92\u7684\u5e94\u7528\u573a\u666f\uff0c\u5982\u667a\u80fd\u6284\u8868\u3001\u667a\u6167\u519c\u4e1a\u7b49\u3002<\/p>\n\n\n\n

\u3000\u3000\u6210\u672c\u4f18\u52bf LoRa \u6a21\u5757\u8fd0\u884c\u5728\u5168\u7403\u514d\u8d39\u9891\u6bb5(\u5982 433MHz\u3001868MHz\u3001915MHz)\uff0c\u65e0\u9700\u652f\u4ed8\u989d\u5916\u7684\u9891\u8c31\u8d39\u7528\uff0c\u4e14\u8bbe\u5907\u6210\u672c\u8f83\u4f4e\u3002<\/p>\n\n\n\n

\u3000\u3000\u7075\u6d3b\u7684\u7f51\u7edc\u67b6\u6784 LoRa \u7f51\u7edc\u7531\u7ec8\u7aef\u3001\u7f51\u5173\u3001\u57fa\u7ad9\u548c\u670d\u52a1\u5668\u7ec4\u6210\uff0c\u652f\u6301\u81ea\u9002\u5e94\u6570\u636e\u901f\u7387\u548c\u7f51\u7edc\u62d3\u6251\u7ed3\u6784\u7684\u4f18\u5316\uff0c\u80fd\u591f\u9002\u5e94\u4e0d\u540c\u7684\u5e94\u7528\u573a\u666f \u3002<\/p>\n\n\n\n

\u3000\u3000\u5c40\u9650\u6027\uff1a \u901a\u4fe1\u901f\u7387\u8f83\u4f4e LoRa \u6280\u672f\u7684\u6700\u5927\u6570\u636e\u4f20\u8f93\u901f\u7387\u901a\u5e38\u5728 5.5 Kbps \u5de6\u53f3\uff0c\u65e0\u6cd5\u6ee1\u8db3\u9700\u8981\u9ad8\u901f\u6570\u636e\u4f20\u8f93\u7684\u5e94\u7528\u9700\u6c42\uff0c\u5982\u5b9e\u65f6\u89c6\u9891\u4f20\u8f93 \u3002\u8fd9\u9650\u5236\u4e86\u5176\u5728\u67d0\u4e9b\u573a\u666f\u4e0b\u7684\u5e94\u7528\u3002<\/p>\n\n\n\n

\u3000\u3000\u901a\u4fe1\u5ef6\u8fdf\u8f83\u5927 LoRa \u6280\u672f\u7531\u4e8e\u5176\u6269\u9891\u8c03\u5236\u7279\u6027\uff0c\u5bfc\u81f4\u901a\u4fe1\u5ef6\u8fdf\u8f83\u9ad8\uff0c\u4e0d\u9002\u5408\u9700\u8981\u5b9e\u65f6\u54cd\u5e94\u7684\u5e94\u7528\u3002<\/p>\n\n\n\n

\u3000\u3000\u5bf9\u73af\u5883\u654f\u611f LoRa \u4fe1\u53f7\u5728\u68ee\u6797\u3001\u5efa\u7b51\u548c\u690d\u88ab\u7a7f\u900f\u6027\u8f83\u5dee\uff0c\u9700\u8981\u66f4\u591a\u7684\u57fa\u7ad9\u6765\u4fdd\u8bc1\u8986\u76d6 \u3002<\/p>\n\n\n\n

\u3000\u3000\u5b89\u5168\u6027\u95ee\u9898 LoRa \u534f\u8bae\u8f83\u4e3a\u5f00\u653e\uff0c\u5bb9\u6613\u53d7\u5230\u653b\u51fb\uff0c\u7f3a\u4e4f\u8ba4\u8bc1\u7ba1\u7406\u673a\u5236 \u3002\u6b64\u5916\uff0c\u7531\u4e8e\u4f7f\u7528\u975e\u6388\u6743\u9891\u6bb5\uff0cLoRa \u7f51\u7edc\u53ef\u80fd\u9762\u4e34\u5e72\u6270\u548c\u5b89\u5168\u5a01\u80c1 \u3002<\/p>\n\n\n\n

\u3000\u3000\u7ec4\u7f51\u56f0\u96be LoRa \u7f51\u7edc\u7684\u7ec4\u7f51\u590d\u6742\u5ea6\u8f83\u9ad8\uff0c\u9700\u8981\u8003\u8651\u4fe1\u53f7\u8986\u76d6\u548c\u7f51\u7edc\u7a33\u5b9a\u6027\u3002<\/p>\n\n\n\n

\u3000\u3000\u9891\u8c31\u6548\u7387\u8f83\u4f4e LoRa \u6280\u672f\u7684\u9891\u8c31\u6548\u7387\u8f83\u4f4e\uff0c\u5c24\u5176\u662f\u5728\u9ad8\u9891\u6bb5(\u5982 900MHz)\u4e0b\uff0c\u9700\u8981\u66f4\u591a\u7684\u57fa\u7ad9\u6765\u5b9e\u73b0\u8986\u76d6 \u3002<\/p>\n\n\n\n

\u3000\u3000\u9002\u7528\u8303\u56f4\u6709\u9650 LoRa \u6280\u672f\u66f4\u9002\u5408\u4f4e\u901f\u7387\u3001\u4f4e\u529f\u8017\u7684\u7269\u8054\u7f51\u5e94\u7528\uff0c\u800c\u4e0d\u9002\u5408\u9700\u8981\u9ad8\u5e26\u5bbd\u548c\u9ad8\u53ef\u9760\u6027\u7684\u573a\u666f \u3002<\/p>\n\n\n\n

\u3000\u3000\u7ed3\u8bba\uff1a LoRa \u6280\u672f\u5728\u8fdc\u8ddd\u79bb\u4f20\u8f93\u3001\u4f4e\u529f\u8017\u3001\u6297\u5e72\u6270\u80fd\u529b\u7b49\u65b9\u9762\u5177\u6709\u663e\u8457\u4f18\u52bf\uff0c\u7279\u522b\u9002\u5408\u7269\u8054\u7f51\u4e2d\u7684\u8fdc\u7a0b\u4f20\u611f\u5668\u548c\u4f4e\u901f\u7387\u901a\u4fe1\u5e94\u7528\u3002\u7136\u800c\uff0c\u5176\u901a\u4fe1\u901f\u7387\u4f4e\u3001\u5ef6\u8fdf\u5927\u3001\u5b89\u5168\u6027\u4e0d\u8db3\u7b49\u5c40\u9650\u6027\u4e5f\u9650\u5236\u4e86\u5176\u5728\u67d0\u4e9b\u573a\u666f\u4e0b\u7684\u5e94\u7528\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

LoRa \u65e0\u7ebf\u901a\u4fe1\u6a21\u5757\u7684 AT \u6307\u4ee4\u96c6\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u529f\u80fd\uff0c\u7528\u6237\u53ef\u4ee5\u901a\u8fc7\u8fd9\u4e9b\u6307\u4ee4\u5b9e\u73b0\u8bbe\u5907\u7684\u914d\u7f6e\u3001\u901a\u4fe1\u6a21\u5f0f\u8c03\u6574\u4ee5\u53ca\u6570\u636e\u4f20\u8f93\u7b49\u64cd\u4f5c\u3002\u5177\u4f53\u4f7f\u7528\u65f6\u9700\u6839\u636e\u6a21\u5757\u578b\u53f7\u548c\u6280\u672f\u624b\u518c\u9009\u62e9\u5408\u9002\u7684\u6307\u4ee4<\/p>\n","protected":false},"author":1,"featured_media":97773,"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-101029","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-l-2"],"_links":{"self":[{"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/posts\/101029","targetHints":{"allow":["GET"]}}],"collection":[{"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/comments?post=101029"}],"version-history":[{"count":0,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/posts\/101029\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/media\/97773"}],"wp:attachment":[{"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/media?parent=101029"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/categories?post=101029"},{"taxonomy":"post_tag","embeddable":true,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/tags?post=101029"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}