{"id":96392,"date":"2024-08-02T09:53:03","date_gmt":"2024-08-02T01:53:03","guid":{"rendered":"\/\/www.dealsbon.com\/?p=96392"},"modified":"2024-08-02T09:53:29","modified_gmt":"2024-08-02T01:53:29","slug":"lmzzmcsxh","status":"publish","type":"post","link":"\/\/www.dealsbon.com\/blog\/96392.html","title":{"rendered":"LoRa\u6a21\u7ec4\u600e\u4e48\u6d4b\u8bd5\u4fe1\u53f7"},"content":{"rendered":"\n

\u3000\u3000\u6d4b\u8bd5LoRa\u6a21\u7ec4<\/a>\u7684\u4fe1\u53f7\u901a\u5e38\u6d89\u53ca\u591a\u4e2a\u6b65\u9aa4\u548c\u5de5\u5177\uff0c\u4ee5\u4e0b\u662f\u8be6\u7ec6\u7684\u6d4b\u8bd5\u65b9\u6cd5\uff1a<\/p>\n\n\n\n

\u3000\u3000\u5728\u8fdb\u884c\u6d4b\u8bd5\u65f6\uff0c\u53ef\u4ee5\u5c06\u5f85\u6d4b\u7684\u76ee\u6807LoRa\u6a21\u7ec4\u4e0e\u6d4b\u8bd5\u5de5\u5177\u4e4b\u95f4\u8bbe\u7f6e\u4e00\u4e2a\u8870\u51cf\u5668\u3002\u901a\u8fc7\u8c03\u6574\u8870\u51cf\u5668\u7684\u8870\u51cf\u503c\uff0c\u53ef\u4ee5\u6a21\u62df\u4e0d\u540c\u7684\u4fe1\u53f7\u5f3a\u5ea6\u73af\u5883\u3002<\/p>\n\n\n\n

\u3000\u3000\u6d4b\u8bd5LoRa\u6a21\u7ec4\u7684\u53d1\u5c04\u529f\u7387\u548c\u63a5\u6536\u7075\u654f\u5ea6\u65f6\uff0c\u5e38\u5e38\u4f7f\u7528\u9891\u8c31\u4eea\u6765\u6d4b\u91cf\u53d1\u5c04\u529f\u7387\uff0c\u800c\u4f7f\u7528\u4fe1\u53f7\u6e90\u6765\u6d4b\u91cf\u63a5\u6536\u7075\u654f\u5ea6\u3002\u8fd9\u4e9b\u4eea\u5668\u80fd\u591f\u63d0\u4f9b\u7cbe\u786e\u7684\u6d4b\u91cf\u6570\u636e\uff0c\u5e2e\u52a9\u8bc4\u4f30\u6a21\u7ec4\u7684\u6027\u80fd\u3002<\/p>\n\n\n\n

\u3000\u3000\u4f7f\u7528RSSI(Received Signal Strength Indicator)\u548cSNR(Signal-to-Noise Ratio)\u6765\u8861\u91cf\u4fe1\u53f7\u5f3a\u5ea6\u548c\u8d28\u91cf\u3002RSSI\u503c\u8d8a\u9ad8\u8868\u793a\u4fe1\u53f7\u8d8a\u5f3a\uff0c\u800cSNR\u503c\u5219\u7528\u4e8e\u8bc4\u4f30\u4fe1\u53f7\u7684\u8d28\u91cf\uff0c\u5373\u4fe1\u53f7\u4e0e\u566a\u58f0\u7684\u6bd4\u4f8b\u3002\u4e00\u822c\u60c5\u51b5\u4e0b\uff0cRSSI\u503c\u4f4e\u4e8e-100dBm\u3001SNR\u503c\u9ad8\u4e8e12dB\u90fd\u662f\u826f\u597d\u7684\u4fe1\u53f7\u6307\u6807\u3002<\/p>\n\n\n\n

\u3000\u3000\u53ef\u4ee5\u5229\u7528LoRa\u6d4b\u8bd5\u5e73\u53f0\u81ea\u5e26\u7684\u5e26\u5bbd\u7edf\u8ba1\u529f\u80fd\uff0c\u81ea\u52a8\u8ba1\u7b97LoRa\u53d1\u5c04\u4fe1\u53f7\u7684\u5e26\u5bbd\uff0c\u5e76\u5728\u4e0d\u540c\u6269\u9891\u56e0\u5b50\u4e0b\u6d4b\u91cf\u5176\u5360\u7528\u5e26\u5bbd\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u73af\u5883\u68c0\u6d4b\u5224\u65ad\u5355\u4e2a\u8bbe\u5907\u7684\u73af\u5883\u4fe1\u53f7\u8d28\u91cf\uff0c\u4ee5\u53ca\u901a\u8fc7\u65e0\u7ebf\u6570\u636e\u4f20\u8f93\u4fe1\u53f7\u68c0\u6d4b\u5224\u65ad\u8bbe\u5907\u95f4\u90e8\u7f72\u8ddd\u79bb\u548c\u969c\u788d\u7269\u60c5\u51b5\u3002\u4f8b\u5982\uff0c\u6a21\u7ec4\u4f1a\u95f4\u9694\u4e00\u5b9a\u65f6\u95f4\u8bfb\u53d6\u5f53\u524d\u73af\u5883\u4e0b\u7684\u4fe1\u53f7\u8d28\u91cf\uff0c\u5e76\u901a\u8fc7\u4e32\u53e3\u8f93\u51faSNR\u548cRSSI\u503c\u3002<\/p>\n\n\n\n

\u3000\u3000\u4f7f\u7528\u5982Signal Studio\u7b49\u4e13\u4e1a\u8f6f\u4ef6\u8fdb\u884c\u4fe1\u53f7\u751f\u6210\u548c\u5206\u6790\uff0c\u4ee5\u5e94\u5bf9\u4e0d\u65ad\u53d8\u5316\u7684\u6d4b\u8bd5\u9700\u6c42\u3002\u8fd9\u4e9b\u5de5\u5177\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u66f4\u597d\u5730\u7406\u89e3\u548c\u4f18\u5316LoRa\u6a21\u7ec4\u7684\u6027\u80fd\u3002<\/p>\n\n\n\n

\u3000\u3000\u5bf9\u4e8e\u7814\u53d1\u8c03\u6d4b\uff0c\u53ef\u4ee5\u91c7\u7528\u7efc\u5408\u6d4b\u8bd5\u65b9\u6848\uff0c\u5305\u62ecLoRa\u4fe1\u53f7\u53d1\u751f\u3001\u63a5\u6536\u6d4b\u8bd5\u548c\u9891\u8c31\u6d4b\u8bd5\u7b49\u9879\u76ee\u3002\u8fd9\u4e9b\u6d4b\u8bd5\u9879\u76ee\u6ee1\u8db3Semtech\u6807\u51c6\uff0c\u786e\u4fdd\u6536\u53d1\u534a\u53cc\u5de5\u6d4b\u8bd5\u7684\u4e00\u81f4\u6027\u548c\u51c6\u786e\u6027\u3002<\/p>\n\n\n\n

\u3000\u3000\u901a\u8fc7\u4e0a\u8ff0\u65b9\u6cd5\u548c\u5de5\u5177\uff0c\u53ef\u4ee5\u5168\u9762\u5730\u6d4b\u8bd5LoRa\u6a21\u7ec4\u7684\u4fe1\u53f7\u8d28\u91cf\u3001\u529f\u7387\u3001\u7075\u654f\u5ea6\u548c\u7a33\u5b9a\u6027\uff0c\u4ece\u800c\u4fdd\u8bc1\u5176\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u7684\u53ef\u9760\u6027\u548c\u9ad8\u6548\u6027\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e00\u3001 LoRa\u6a21\u7ec4\u8870\u51cf\u5668\u7684\u9009\u62e9\u548c\u8bbe\u7f6e\u65b9\u6cd5\u662f\u4ec0\u4e48?<\/h2>\n\n\n\n

\u3000\u3000LoRa\u6a21\u7ec4\u7684\u53d1\u5c04\u529f\u7387\u53ef\u4ee5\u901a\u8fc7\u8f6f\u4ef6\u914d\u7f6e\uff0c\u6700\u5927\u529f\u7387\u53ef\u8fbe22dBm\u3002\u8fd9\u8868\u660eLoRa\u6a21\u7ec4\u5177\u6709\u53ef\u8c03\u8282\u7684\u53d1\u5c04\u529f\u7387\uff0c\u800c\u8870\u51cf\u5668\u901a\u5e38\u7528\u4e8e\u51cf\u5c11\u4fe1\u53f7\u5f3a\u5ea6\uff0c\u4ee5\u9002\u5e94\u4e0d\u540c\u7684\u901a\u4fe1\u73af\u5883\u6216\u907f\u514d\u8fc7\u8f7d\u63a5\u6536\u8bbe\u5907\u3002<\/p>\n\n\n\n

\u3000\u3000\u5982\u4f55\u9009\u62e9\u548c\u8bbe\u7f6eLoRa\u6a21\u7ec4\u7684\u8870\u51cf\u5668\uff0c\u5982\u679c\u9700\u8981\u4f7f\u7528\u8870\u51cf\u5668\uff0c\u5e94\u8be5\u6839\u636e\u5b9e\u9645\u7684\u901a\u4fe1\u8ddd\u79bb\u3001\u73af\u5883\u566a\u58f0\u6c34\u5e73\u4ee5\u53ca\u63a5\u6536\u8bbe\u5907\u7684\u7075\u654f\u5ea6\u6765\u9009\u62e9\u5408\u9002\u7684\u8870\u51cf\u91cf\u3002\u4f8b\u5982\uff0c\u5982\u679c\u901a\u4fe1\u8ddd\u79bb\u8fc7\u8fdc\u6216\u73af\u5883\u566a\u58f0\u8fc7\u9ad8\uff0c\u53ef\u80fd\u9700\u8981\u4f7f\u7528\u8870\u51cf\u5668\u6765\u964d\u4f4e\u4fe1\u53f7\u5f3a\u5ea6\uff0c\u4ee5\u786e\u4fdd\u4fe1\u53f7\u8d28\u91cf\u548c\u907f\u514d\u5e72\u6270\u3002<\/p>\n\n\n\n

\u3000\u3000\u5177\u4f53\u5230LoRa\u6a21\u7ec4\u7684\u8870\u51cf\u5668\u9009\u62e9\u548c\u8bbe\u7f6e\uff0c\u901a\u5e38\u9700\u8981\u53c2\u8003\u6a21\u7ec4\u5236\u9020\u5546\u63d0\u4f9b\u7684\u6280\u672f\u89c4\u683c\u548c\u5e94\u7528\u6307\u5357\uff0c\u4e86\u89e3\u5982\u4f55\u901a\u8fc7\u8f6f\u4ef6\u6216\u786c\u4ef6\u63a5\u53e3(\u5982SPI)\u6765\u8c03\u6574\u53d1\u5c04\u529f\u7387\u6216\u5f15\u5165\u8870\u51cf\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e8c\u3001 \u5982\u4f55\u4f7f\u7528\u9891\u8c31\u4eea\u51c6\u786e\u6d4b\u91cfLoRa\u6a21\u7ec4\u7684\u53d1\u5c04\u529f\u7387\u548c\u63a5\u6536\u7075\u654f\u5ea6?<\/h2>\n\n\n\n

\u3000\u3000\u8981\u4f7f\u7528\u9891\u8c31\u4eea\u51c6\u786e\u6d4b\u91cfLoRa\u6a21\u7ec4\u7684\u53d1\u5c04\u529f\u7387\u548c\u63a5\u6536\u7075\u654f\u5ea6\uff0c\u53ef\u4ee5\u6309\u7167\u4ee5\u4e0b\u6b65\u9aa4\u8fdb\u884c\uff1a<\/p>\n\n\n\n

\u3000\u3000\u6d4b\u91cfLoRa\u6a21\u7ec4\u7684\u53d1\u5c04\u529f\u7387<\/p>\n\n\n\n

\u3000\u3000\u51c6\u5907\u5de5\u4f5c<\/strong>\uff1a<\/p>\n\n\n\n

\u3000\u3000\u5c06LoRa\u8bbe\u5907\u8fde\u63a5\u5230\u9891\u8c31\u4eea\u6216\u529f\u7387\u8ba1\u4e0a\u3002<\/p>\n\n\n\n

\u3000\u3000\u786e\u4fdd\u6240\u6709\u8fde\u63a5\u7a33\u56fa\uff0c\u5e76\u4e14\u4eea\u5668\u5904\u4e8e\u6b63\u5e38\u5de5\u4f5c\u72b6\u6001\u3002<\/p>\n\n\n\n

\u3000\u3000\u8bbe\u7f6e\u9891\u8c31\u4eea\u53c2\u6570<\/strong>\uff1a<\/p>\n\n\n\n

\u3000\u3000\u6839\u636e\u88ab\u6d4b\u4fe1\u53f7\u7684\u5927\u5c0f\u8bbe\u7f6e\u76f8\u5e94\u7684\u4e2d\u5fc3\u9891\u7387\u3001\u626b\u5bbd(SPAN)\u4ee5\u53ca\u53c2\u8003\u7535\u5e73\u3002\u8fd9\u4e9b\u53c2\u6570\u9700\u8981\u6839\u636e\u5f85\u6d4b\u6837\u54c1\u7684\u529f\u7387\u7b49\u7ea7\u6765\u8c03\u6574\uff0c\u4f8b\u5982\u5728\u6d4b\u8bd5\u4e2d\u5e38\u7528\u53d1\u5c04\u529f\u7387\u7b49\u7ea7\u4e3a17dBm\u4e3a\u4e2d\u5fc3\uff0c\u4e24\u7aef\u5404\u9009\u53d62\u4e2a\u70b9\u3002<\/p>\n\n\n\n

\u3000\u3000\u8c03\u8282\u53ef\u8c03\u8870\u51cf\u5668\u4ee5\u4fdd\u6301\u9891\u8c31\u4eea\u7aef\u7684\u529f\u7387\u503c\u4e0d\u8d85\u8fc720dBm\u3002<\/p>\n\n\n\n

\u3000\u3000\u5f00\u59cb\u6d4b\u91cf<\/strong>\uff1a<\/p>\n\n\n\n

\u3000\u3000\u7ed9\u5f85\u6d4b\u8bbe\u5907\u4e0a\u7535\uff0c\u8ba9\u5176\u4e0d\u65ad\u4ee5\u540c\u4e00\u9891\u7387\u548c\u540c\u4e00\u529f\u7387\u53d1\u5c04\u4fe1\u53f7(\u4f8b\u5982450MHz\u300120dBm)\u3002<\/p>\n\n\n\n

\u3000\u3000\u4f7f\u7528\u9891\u8c31\u4eea\u8bfb\u53d6\u5e76\u8bb0\u5f55\u53d1\u5c04\u529f\u7387\u6570\u636e\u3002<\/p>\n\n\n\n

\u3000\u3000\u5206\u6790\u7ed3\u679c<\/strong>\uff1a<\/p>\n\n\n\n

\u3000\u3000\u6839\u636e\u9891\u8c31\u4eea\u663e\u793a\u7684\u529f\u7387\u503c\uff0c\u8ba1\u7b97\u51fa\u5b9e\u9645\u53d1\u5c04\u529f\u7387\u3002\u901a\u5e38\u60c5\u51b5\u4e0b\uff0c\u53ef\u4ee5\u901a\u8fc7\u9891\u8c31\u4eea\u7684\u6570\u5b57\u663e\u793a\u65b9\u5f0f\u76f4\u63a5\u8bfb\u53d6\u529f\u7387\u503c\u3002<\/p>\n\n\n\n

\u3000\u3000\u6d4b\u91cfLoRa\u6a21\u7ec4\u7684\u63a5\u6536\u7075\u654f\u5ea6<\/p>\n\n\n\n

\u3000\u3000\u642d\u5efa\u6d4b\u8bd5\u73af\u5883<\/strong>\uff1a<\/p>\n\n\n\n

\u3000\u3000\u57fa\u4e8e\u9891\u8c31\u4eea\u642d\u5efa\u6d4b\u8bd5\u73af\u5883\uff0c\u4f7f\u7528\u201c\u5dee\u503c\u6cd5\u201d\u6d4b\u91cf\u5404\u5668\u4ef6\u7684\u8870\u51cf\u503c\u3002<\/p>\n\n\n\n

\u3000\u3000\u786e\u4fdd\u6d4b\u8bd5\u73af\u5883\u4e2d\u7684\u5176\u4ed6\u5e72\u6270\u6e90\u5c3d\u91cf\u51cf\u5c11\uff0c\u4ee5\u63d0\u9ad8\u6d4b\u91cf\u7cbe\u5ea6\u3002<\/p>\n\n\n\n

\u3000\u3000\u8bbe\u7f6e\u9891\u8c31\u4eea\u53c2\u6570<\/strong>\uff1a<\/p>\n\n\n\n

\u3000\u3000\u6839\u636e\u88ab\u6d4b\u5c0f\u4fe1\u53f7\u7684\u5927\u5c0f\u8bbe\u7f6e\u76f8\u5e94\u7684\u4e2d\u5fc3\u9891\u7387\u3001\u626b\u5bbd(SPAN)\u4ee5\u53ca\u53c2\u8003\u7535\u5e73\u3002<\/p>\n\n\n\n

\u3000\u3000\u8bbe\u7f6e\u9002\u5f53\u7684\u589e\u76ca\u548c\u6ee4\u6ce2\u5668\uff0c\u4ee5\u4fbf\u80fd\u591f\u89c2\u6d4b\u5230\u5c0f\u4fe1\u53f7\u3002<\/p>\n\n\n\n

\u3000\u3000\u5f00\u59cb\u6d4b\u91cf<\/strong>\uff1a<\/p>\n\n\n\n

\u3000\u3000\u5728\u89c4\u5b9a\u7684\u6d4b\u8bd5\u9891\u7387\u548c\u8c03\u5236\u65b9\u5f0f\u4e0b\uff0c\u5c06\u63a5\u6536\u673a\u5929\u7ebf\u7aef\u53e3\u7684\u8f93\u5165\u4fe1\u53f7\u529f\u7387\u9010\u6e10\u964d\u4f4e\uff0c\u76f4\u5230\u8bef\u7801\u7387\u5c0f\u4e8e\u6216\u7b49\u4e8e\u89c4\u5b9a\u503c\u65f6\u505c\u6b62\u3002<\/p>\n\n\n\n

\u3000\u3000\u8bb0\u5f55\u6b64\u65f6\u7684\u8f93\u5165\u4fe1\u53f7\u529f\u7387\uff0c\u5373\u4e3a\u63a5\u6536\u7075\u654f\u5ea6\u3002<\/p>\n\n\n\n

\u3000\u3000\u5206\u6790\u7ed3\u679c<\/strong>\uff1a<\/p>\n\n\n\n

\u3000\u3000\u4f7f\u7528\u5dee\u503c\u6cd5\u8ba1\u7b97\u51fa\u5404\u5668\u4ef6\u7684\u8870\u51cf\u503c\uff0c\u5e76\u8be6\u7ec6\u8bb0\u5f55\u6d4b\u8bd5\u6570\u636e\u3002<\/p>\n\n\n\n

\u3000\u3000\u5bf9\u5c04\u9891\u6027\u80fd\u505a\u51fa\u5206\u6790\u7ed3\u8bba\uff0c\u786e\u4fdd\u63a5\u6536\u7075\u654f\u5ea6\u7b26\u5408\u9884\u671f\u8981\u6c42\u3002<\/p>\n\n\n\n

\u3000\u3000\u901a\u8fc7\u4e0a\u8ff0\u6b65\u9aa4\uff0c\u53ef\u4ee5\u4f7f\u7528\u9891\u8c31\u4eea\u51c6\u786e\u6d4b\u91cfLoRa\u6a21\u7ec4\u7684\u53d1\u5c04\u529f\u7387\u548c\u63a5\u6536\u7075\u654f\u5ea6\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e09\u3001 LoRa\u4fe1\u9053\u6d3b\u52a8\u68c0\u6d4b\u5668(CAD)\u7684\u5de5\u4f5c\u539f\u7406<\/h2>\n\n\n\n

\u3000\u3000LoRa\u4fe1\u9053\u6d3b\u52a8\u68c0\u6d4b\u5668(CAD)\u7684\u5de5\u4f5c\u539f\u7406\u662f\u901a\u8fc7\u68c0\u6d4b\u65e0\u7ebf\u7535\u4fe1\u9053\u4e0a\u7684LoRa\u524d\u5bfc\u7801\u6765\u5b9e\u73b0\u7684\u3002\u5176\u4e3b\u8981\u76ee\u7684\u662f\u5728\u5c3d\u53ef\u80fd\u4f4e\u7684\u529f\u7387\u6548\u7387\u4e0b\uff0c\u51c6\u786e\u5730\u5224\u65ad\u51fa\u662f\u5426\u6709\u5176\u4ed6LoRa\u4fe1\u53f7\u6b63\u5728\u4f7f\u7528\u8be5\u9891\u6bb5\u3002<\/p>\n\n\n\n

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