{"id":99107,"date":"2024-11-12T16:33:40","date_gmt":"2024-11-12T08:33:40","guid":{"rendered":"\/\/www.viralrail.com\/?p=99107"},"modified":"2024-11-12T16:33:44","modified_gmt":"2024-11-12T08:33:44","slug":"lmkcsjlydy","status":"publish","type":"post","link":"\/\/www.viralrail.com\/blog\/99107.html","title":{"rendered":"LoRa\u6a21\u5757\u4f20\u8f93\u8ddd\u79bb\u6709\u591a\u8fdc\uff1f"},"content":{"rendered":"\n<p>\u3000\u3000<strong>LoRa\u6a21\u5757<\/strong>\u7684\u4f20\u8f93\u8ddd\u79bb\u53d7\u591a\u79cd\u56e0\u7d20\u5f71\u54cd\uff0c\u5305\u62ec\u53d1\u5c04\u529f\u7387\u3001\u63a5\u6536\u7075\u654f\u5ea6\u3001\u5929\u7ebf\u589e\u76ca\u3001\u5de5\u4f5c\u9891\u7387\u4ee5\u53ca\u73af\u5883\u6761\u4ef6\u7b49\u3002\u5728\u7406\u60f3\u6761\u4ef6\u4e0b\uff0c\u5373\u65e0\u969c\u788d\u7269\u548c\u826f\u597d\u5929\u6c14\u7684\u60c5\u51b5\u4e0b\uff0cLoRa\u6a21\u5757\u7684\u4f20\u8f93\u8ddd\u79bb\u53ef\u4ee5\u8fbe\u5230\u76f8\u5f53\u8fdc\u7684\u8ddd\u79bb\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u57ce\u5e02\u73af\u5883<\/strong>\uff1a\u5728\u57ce\u5e02\u73af\u5883\u4e2d\uff0cLoRa\u6a21\u5757\u7684\u4f20\u8f93\u8ddd\u79bb\u4e00\u822c\u4e3a1-2\u516c\u91cc\uff0c\u4f46\u5728\u4f18\u5316\u914d\u7f6e\u4e0b\uff0c\u5982\u4f7f\u752820dBm\u7684\u53d1\u5c04\u529f\u7387\u548c-137dBm\u7684\u63a5\u6536\u7075\u654f\u5ea6\uff0c\u4f20\u8f93\u8ddd\u79bb\u53ef\u4ee5\u589e\u52a0\u52303\u516c\u91cc\u5de6\u53f3\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u90ca\u533a\u73af\u5883<\/strong>\uff1a\u5728\u90ca\u533a\u6216\u8f83\u4e3a\u5f00\u9614\u7684\u5730\u533a\uff0cLoRa\u6a21\u5757\u7684\u4f20\u8f93\u8ddd\u79bb\u53ef\u4ee5\u8fbe\u52305\u516c\u91cc\u3002\u5728\u65e0\u969c\u788d\u7269\u7684\u60c5\u51b5\u4e0b\uff0c\u8fd9\u4e00\u8ddd\u79bb\u53ef\u4ee5\u8fdb\u4e00\u6b65\u6269\u5c55\u523015\u516c\u91cc\u751a\u81f320\u516c\u91cc\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u519c\u6751\u73af\u5883<\/strong>\uff1a\u5728\u519c\u6751\u73af\u5883\u4e2d\uff0c\u540c\u6837\u4f7f\u752820dBm\u7684\u53d1\u5c04\u529f\u7387\u548c-137dBm\u7684\u63a5\u6536\u7075\u654f\u5ea6\uff0cLoRa\u6a21\u5757\u7684\u4f20\u8f93\u8ddd\u79bb\u53ef\u4ee5\u8fbe\u52307\u516c\u91cc\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u7279\u6b8a\u60c5\u51b5\u4e0b<\/strong>\uff1a\u5728\u6700\u7406\u60f3\u7684\u6761\u4ef6\u4e0b\uff0cLoRa\u6280\u672f\u7684\u6700\u5927\u7a7a\u7a7a\u901a\u4fe1\u8ddd\u79bb\u53ef\u8fbe15\u516c\u91cc\uff0c\u8fd9\u662f\u5728\u4f7f\u7528\u6700\u4f4e\u901f\u7387\u548c\u6700\u4f73\u73af\u5883\u4e0b\u53d6\u5f97\u7684\u6210\u7ee9\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000\u6b64\u5916\uff0cLoRa\u6a21\u5757\u5728\u4e0d\u540c\u73af\u5883\u4e0b\u7684\u4f20\u8f93\u8ddd\u79bb\u4e5f\u6709\u6240\u4e0d\u540c\u3002\u4f8b\u5982\uff0c\u5728\u7a7a\u65f7\u65e0\u969c\u788d\u7269\u7684\u60c5\u51b5\u4e0b\uff0c\u5176\u4f20\u8f93\u8ddd\u79bb\u53ef\u8fbe5~10\u516c\u91cc\u3002\u800c\u5728\u4e00\u4e9b\u7279\u6b8a\u60c5\u51b5\u4e0b\uff0c\u5982\u4f7f\u7528\u9ad8\u589e\u76ca\u5b9a\u5411\u5929\u7ebf\u6216\u7279\u5b9a\u7684\u8c03\u5236\u53c2\u6570\u4f18\u5316\u7ec4\u5408\uff0cLoRa\u6a21\u5757\u751a\u81f3\u53ef\u4ee5\u5b9e\u73b0\u66f4\u8fdc\u7684\u4f20\u8f93\u8ddd\u79bb\u3002<\/p>\n\n\n\n<p>\u3000\u3000LoRa\u6a21\u5757\u7684\u4f20\u8f93\u8ddd\u79bb\u901a\u5e38\u5728\u51e0\u516c\u91cc\u5230\u6570\u5341\u516c\u91cc\u4e4b\u95f4\uff0c\u5177\u4f53\u53d6\u51b3\u4e8e\u73af\u5883\u6761\u4ef6\u548c\u8bbe\u5907\u914d\u7f6e\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e00\u3001 LoRa\u6a21\u5757\u5728\u4e0d\u540c\u5de5\u4f5c\u9891\u7387\u4e0b\u7684\u4f20\u8f93\u8ddd\u79bb\u5dee\u5f02<\/h2>\n\n\n\n<p>\u3000\u3000LoRa\u6a21\u5757\u5728\u4e0d\u540c\u5de5\u4f5c\u9891\u7387\u4e0b\u7684\u4f20\u8f93\u8ddd\u79bb\u5b58\u5728\u663e\u8457\u5dee\u5f02\u3002\u4ee5\u4e0b\u662f\u57fa\u4e8e\u6211\u641c\u7d22\u5230\u7684\u8d44\u6599\u5bf9\u4e0d\u540c\u9891\u7387\u4e0bLoRa\u6a21\u5757\u4f20\u8f93\u8ddd\u79bb\u7684\u8be6\u7ec6\u5206\u6790\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u3000<strong>433 MHz\u9891\u7387<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000\u5728433 MHz\u9891\u7387\u4e0b\uff0cLoRa\u6a21\u5757\u8868\u73b0\u51fa\u8f83\u4f4e\u7684\u8def\u5f84\u635f\u8017\uff0c\u8fd9\u610f\u5473\u7740\u5728\u76f8\u540c\u6761\u4ef6\u4e0b\uff0c433 MHz\u9891\u7387\u7684LoRa\u6a21\u5757\u6bd4915 MHz\u9891\u7387\u7684LoRa\u6a21\u5757\u5177\u6709\u66f4\u597d\u7684\u4fe1\u53f7\u4f20\u8f93\u6027\u80fd\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u5728\u4e00\u9879\u5b9e\u9a8c\u4e2d\uff0cLoRa\u6a21\u5757\u5728433 MHz\u9891\u7387\u4e0b\u80fd\u591f\u5b9e\u73b0\u6700\u5927\u4f20\u8f93\u8ddd\u79bb\u4e3a411\u7c73\uff0c\u8fd9\u8868\u660e\u5176\u5728\u975e\u89c6\u7ebf(NLoS)\u6761\u4ef6\u4e0b\u7684\u4fe1\u53f7\u8986\u76d6\u8303\u56f4\u8f83\u5927\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u3000<strong>915 MHz\u9891\u7387<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000\u5728915 MHz\u9891\u7387\u4e0b\uff0cLoRa\u6a21\u5757\u7684\u4f20\u8f93\u8ddd\u79bb\u8f83\u77ed\u3002\u4f8b\u5982\uff0c\u5728\u4e00\u9879\u7814\u7a76\u4e2d\uff0cLoRa\u6a21\u5757\u5728915 MHz\u9891\u7387\u4e0b\u4ece\u53d1\u5c04\u5668\u5230\u63a5\u6536\u5668\u7684\u8ddd\u79bb\u4e3a100\u7c73\u65f6\uff0c\u4fe1\u53f7\u5f3a\u5ea6\u4e3a-84 dBm\uff0c\u800c\u5728500\u7c73\u65f6\uff0c\u4fe1\u53f7\u5f3a\u5ea6\u4e0b\u964d\u5230-107 dBm\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u53e6\u4e00\u9879\u7814\u7a76\u8868\u660e\uff0c\u5728915 MHz\u9891\u7387\u4e0b\uff0cLoRa\u6a21\u5757\u5728\u975e\u89c6\u7ebf\u6761\u4ef6\u4e0b\u7684\u4f20\u8f93\u8ddd\u79bb\u7ea6\u4e3a411\u7c73\uff0c\u4f46\u8def\u5f84\u635f\u8017\u8f83\u5927\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u3000<strong>868 MHz\u9891\u7387<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000\u5728868 MHz\u9891\u7387\u4e0b\uff0cLoRa\u6a21\u5757\u7684\u4f20\u8f93\u8ddd\u79bb\u901a\u5e38\u6bd4433 MHz\u548c915 MHz\u9891\u7387\u4e0b\u7684\u4f20\u8f93\u8ddd\u79bb\u66f4\u8fdc\u3002\u4f8b\u5982\uff0c\u5728\u6b27\u6d32\uff0cLoRa\u548cLoRaWAN\u901a\u5e38\u5728868 MHz\u9891\u6bb5\u4e0a\u8fd0\u884c\uff0c\u5176\u4f20\u8f93\u8ddd\u79bb\u53ef\u4ee5\u8fbe\u52301\u516c\u91cc\u7684\u57ce\u5e02\u73af\u5883\u548c10\u516c\u91cc\u7684\u519c\u6751\u73af\u5883\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u5728\u53e6\u4e00\u9879\u7814\u7a76\u4e2d\uff0cLoRa\u6a21\u5757\u5728868 MHz\u9891\u7387\u4e0b\u80fd\u591f\u652f\u6301\u8d85\u8fc710\u516c\u91cc\u7684\u957f\u8ddd\u79bb\u4f20\u8f93\uff0c\u5c3d\u7ba1\u5728\u5ba4\u5185\u73af\u5883\u4e2d\u4f20\u8f93\u8ddd\u79bb\u4f1a\u51cf\u5c11\u5230\u4e0d\u52301\u516c\u91cc\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u3000<strong>2.4 GHz\u9891\u7387<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000\u57282.4 GHz\u9891\u6bb5\u4e0a\uff0cLoRa\u6a21\u5757\u7684\u4f20\u8f93\u8ddd\u79bb\u660e\u663e\u51cf\u5c11\u3002\u5c3d\u7ba1\u5176\u6570\u636e\u901f\u7387\u8f83\u9ad8(\u6700\u9ad8\u53ef\u8fbe253.91 kbit\/s)\uff0c\u4f46\u5176\u901a\u4fe1\u8303\u56f4\u65e0\u6cd5\u4e0e\u4f4e\u4e8eGHz\u9891\u6bb5\u76f8\u6bd4\u3002\u4f8b\u5982\uff0c\u5728\u81ea\u7531\u7a7a\u95f4\u3001\u5ba4\u5185\u548c\u57ce\u5e02\u73af\u5883\u4e2d\uff0cLoRa\u6a21\u5757\u7684\u4f20\u8f93\u8ddd\u79bb\u5206\u522b\u4e0d\u8d85\u8fc73739\u7c73\u300118\u7c73\u548c3\u5206\u949f\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u8fd9\u79cd\u9891\u7387\u7684\u63d0\u9ad8\u5bfc\u81f4\u4e86\u8def\u5f84\u635f\u8017\u589e\u52a0\uff0c\u56e0\u6b64\u9700\u8981\u90e8\u7f72\u66f4\u591a\u7684\u63a5\u6536\u5668\u6765\u8986\u76d6\u5e7f\u9614\u533a\u57df\u3002<\/p>\n\n\n\n<p>\u3000\u3000LoRa\u6a21\u5757\u5728\u4e0d\u540c\u5de5\u4f5c\u9891\u7387\u4e0b\u7684\u4f20\u8f93\u8ddd\u79bb\u5b58\u5728\u663e\u8457\u5dee\u5f02\u3002433 MHz\u9891\u7387\u4e0b\u7684LoRa\u6a21\u5757\u5177\u6709\u8f83\u597d\u7684\u4fe1\u53f7\u8986\u76d6\u80fd\u529b\uff0c\u800c915 MHz\u9891\u7387\u4e0b\u7684LoRa\u6a21\u5757\u8def\u5f84\u635f\u8017\u8f83\u5927\u3002868 MHz\u9891\u7387\u4e0b\u7684LoRa\u6a21\u5757\u5219\u5728\u57ce\u5e02\u548c\u519c\u6751\u73af\u5883\u4e2d\u8868\u73b0\u51fa\u8f83\u957f\u7684\u4f20\u8f93\u8ddd\u79bb\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e8c\u3001 LoRa\u6a21\u5757\u7684\u5929\u7ebf\u8bbe\u8ba1\u5982\u4f55\u4f18\u5316?<\/h2>\n\n\n\n<p>\u3000\u3000\u4e3a\u4e86\u4f18\u5316LoRa\u6a21\u5757\u7684\u5929\u7ebf\u8bbe\u8ba1\u4ee5\u63d0\u9ad8\u4f20\u8f93\u8ddd\u79bb\uff0c\u53ef\u4ee5\u4ece\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\u8fdb\u884c\u6539\u8fdb\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u589e\u52a0\u5929\u7ebf\u589e\u76ca<\/strong>\uff1a\u6839\u636e\u7814\u7a76\uff0c\u901a\u8fc7\u63d0\u9ad8\u53d1\u5c04\u5929\u7ebf\u548c\u63a5\u6536\u5929\u7ebf\u7684\u589e\u76ca\u53ef\u4ee5\u663e\u8457\u589e\u52a0\u901a\u4fe1\u8ddd\u79bb\u3002\u4f8b\u5982\uff0c\u5c06\u53d1\u5c04\u5929\u7ebf\u589e\u76ca\u4ece3 dBi\u63d0\u9ad8\u52309 dBi\uff0c\u901a\u4fe1\u8ddd\u79bb\u53ef\u4ee5\u5ef6\u957f\u5230\u539f\u6765\u7684\u4e24\u500d\u3002\u6b64\u5916\uff0c\u5b9e\u9a8c\u8868\u660e\uff0c\u4f7f\u7528\u9ad8\u589e\u76ca\u5929\u7ebf\u53ef\u4ee5\u6709\u6548\u6269\u5927\u8986\u76d6\u533a\u57df\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u9009\u62e9\u5408\u9002\u7684\u5929\u7ebf\u7c7b\u578b<\/strong>\uff1a\u4f7f\u7528\u5b9a\u5411\u5929\u7ebf\u6216\u5fae\u5e26\u8d34\u7247E\u5f62\u9635\u5217\u5929\u7ebf\u7b49\u53ef\u4ee5\u8fdb\u4e00\u6b65\u63d0\u5347\u4f20\u8f93\u8ddd\u79bb\u3002\u5b9a\u5411\u5929\u7ebf\u80fd\u591f\u66f4\u6709\u6548\u5730\u5c06\u4fe1\u53f7\u96c6\u4e2d\u4f20\u8f93\uff0c\u4ece\u800c\u589e\u52a0\u8986\u76d6\u8303\u56f4\u3002\u5fae\u5e26\u8d34\u7247E\u5f62\u9635\u5217\u5929\u7ebf\u5728915 MHz\u9891\u7387\u4e0b\u5de5\u4f5c\u65f6\uff0c\u589e\u76ca\u4e3a9.72 dBi\uff0c\u9002\u7528\u4e8e\u89c6\u7ebf\u5185\u548c\u89c6\u7ebf\u5916\u7684\u6761\u4ef6\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u4f18\u5316\u5929\u7ebf\u8bbe\u8ba1<\/strong>\uff1a\u91c7\u7528\u5fae\u578b\u87ba\u65cb\u5929\u7ebf\u8bbe\u8ba1\uff0c\u53ef\u4ee5\u5728\u4fdd\u6301\u589e\u76ca\u7684\u540c\u65f6\u51cf\u5c0f\u5929\u7ebf\u5c3a\u5bf8\u3002\u4f8b\u5982\uff0c\u901a\u8fc7\u8c03\u6574\u87ba\u65cb\u5929\u7ebf\u7684\u76f4\u5f84\u3001\u95f4\u8ddd\u548c\u87ba\u8ddd\u89d2\uff0c\u53ef\u4ee5\u4f18\u5316\u5176\u8f90\u5c04\u6a21\u5f0f\u548c\u589e\u76ca\u3002\u5fae\u578b\u87ba\u65cb\u5929\u7ebf\u5177\u6709\u5706\u6781\u5316\u7279\u6027\uff0c\u589e\u76ca\u4e3a2dB\uff0c\u8f90\u5c04\u6a21\u5f0f\u63a5\u8fd1\u5076\u6781\u5b50\uff0c\u9002\u5408LoRa\u7f51\u7edc\u5e94\u7528\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u964d\u4f4e\u7a7a\u4e2d\u4f20\u64ad\u635f\u8017<\/strong>\uff1a\u5c3d\u91cf\u51cf\u5c11\u969c\u788d\u7269\u5bf9\u4fe1\u53f7\u7684\u5f71\u54cd\uff0c\u5e76\u5c3d\u53ef\u80fd\u5c06\u5929\u7ebf\u67b6\u8bbe\u5728\u9ad8\u5904\uff0c\u5982\u697c\u9876\u6216\u94c1\u5854\u4e0a\uff0c\u4ee5\u4fdd\u8bc1\u89c6\u8ddd\u901a\u4fe1\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u8c03\u6574\u9891\u7387\u548c\u529f\u7387\u8f93\u51fa<\/strong>\uff1a\u964d\u4f4e\u8f7d\u6ce2\u9891\u7387\u53ef\u4ee5\u6709\u6548\u589e\u52a0\u901a\u4fe1\u8ddd\u79bb\u3002\u540c\u65f6\uff0c\u786e\u4fdd\u6a21\u5757\u7684\u53d1\u5c04\u529f\u7387\u8bbe\u7f6e\u5728\u6700\u5927\u503c\uff0c\u4ee5\u83b7\u5f97\u6700\u4f73\u6548\u679c\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u4f18\u5316\u9988\u7ebf\u548c\u8fde\u63a5\u5668<\/strong>\uff1a\u786e\u4fdd\u5c04\u9891\u5370\u5236\u677f\u548c\u9988\u7ebf\u963b\u6297\u5339\u914d\uff0c\u5e76\u9009\u7528\u4f18\u8d28\u5c04\u9891\u8fde\u63a5\u5934\u4ee5\u51cf\u5c11\u4fe1\u53f7\u53cd\u5c04\u9020\u6210\u7684\u635f\u8017\u3002\u5c3d\u53ef\u80fd\u7f29\u77ed\u9988\u7ebf\u957f\u5ea6\u5e76\u9009\u7528\u635f\u8017\u66f4\u4f4e\u7684\u9988\u7ebf\u6750\u6599\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e09\u3001 LoRa\u6a21\u5757\u7684\u63a5\u6536\u7075\u654f\u5ea6\u5bf9\u4f20\u8f93\u8ddd\u79bb\u7684\u5177\u4f53\u5f71\u54cd<\/h2>\n\n\n\n<p>\u3000\u3000LoRa\u6a21\u5757\u7684\u63a5\u6536\u7075\u654f\u5ea6\u5bf9\u4f20\u8f93\u8ddd\u79bb\u6709\u663e\u8457\u5f71\u54cd\u3002\u63a5\u6536\u7075\u654f\u5ea6\u662f\u6307\u63a5\u6536\u5668\u80fd\u591f\u68c0\u6d4b\u5230\u7684\u6700\u5f31\u4fe1\u53f7\u5f3a\u5ea6\uff0c\u901a\u5e38\u4ee5dBm\u4e3a\u5355\u4f4d\u8868\u793a\u3002\u63a5\u6536\u7075\u654f\u5ea6\u8d8a\u9ad8\uff0c\u610f\u5473\u7740\u63a5\u6536\u5668\u80fd\u591f\u63a5\u6536\u66f4\u5fae\u5f31\u7684\u4fe1\u53f7\uff0c\u4ece\u800c\u63d0\u9ad8\u901a\u4fe1\u7684\u53ef\u9760\u6027\u548c\u8986\u76d6\u8303\u56f4\u3002<\/p>\n\n\n\n<p>\u3000\u3000LoRa\u6280\u672f\u901a\u8fc7\u6269\u9891\u8c03\u5236\u548c\u524d\u5411\u7ea0\u9519\u7f16\u7801\u6280\u672f\uff0c\u663e\u8457\u63d0\u9ad8\u4e86\u63a5\u6536\u7075\u654f\u5ea6\u3002\u4f8b\u5982\uff0cLoRa\u82af\u7247\u7684\u63a5\u6536\u7075\u654f\u5ea6\u53ef\u4ee5\u8fbe\u5230-148dBm\uff0c\u8fd9\u4f7f\u5f97LoRa\u8c03\u5236\u7684\u94fe\u8def\u9884\u7b97\u53ef\u4ee5\u8fbe\u5230168dB\uff0c\u4ece\u800c\u63d0\u4f9b\u66f4\u5e7f\u66f4\u6df1\u7684\u8986\u76d6\u80fd\u529b\u3002\u6b64\u5916\uff0cLoRa\u6280\u672f\u8fd8\u5141\u8bb8\u5728\u4e0d\u589e\u52a0\u53d1\u5c04\u529f\u7387\u7684\u60c5\u51b5\u4e0b\uff0c\u901a\u8fc7\u63d0\u9ad8\u63a5\u6536\u7075\u654f\u5ea6\u6765\u5ef6\u957f\u901a\u4fe1\u8ddd\u79bb\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u5177\u4f53\u6765\u8bf4\uff0c\u5f53\u63a5\u6536\u7075\u654f\u5ea6\u63d0\u9ad8\u65f6\uff0c\u4fe1\u53f7\u7684\u8def\u5f84\u635f\u8017\u4f1a\u51cf\u5c11\uff0c\u4ece\u800c\u589e\u52a0\u4f20\u8f93\u8ddd\u79bb\u3002\u4f8b\u5982\uff0c\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u63a5\u6536\u7075\u654f\u5ea6\u6bcf\u63d0\u9ad810dB\uff0c\u901a\u4fe1\u8ddd\u79bb\u53ef\u4ee5\u589e\u52a0\u7ea6\u4e00\u500d\u3002\u6b64\u5916\uff0c\u4e0d\u540c\u7684\u6269\u9891\u56e0\u5b50(SF)\u548c\u5e26\u5bbd(BW)\u7ec4\u5408\u4e5f\u4f1a\u5f71\u54cd\u63a5\u6536\u7075\u654f\u5ea6\u548c\u4f20\u8f93\u8ddd\u79bb\u3002\u4f8b\u5982\uff0c\u5728SF\u4e3a7\u65f6\uff0c\u5bf9\u5e94\u7684\u63a5\u6536\u7075\u654f\u5ea6\u4e3a-130 dBm\uff0c\u800c\u5728SF\u4e3a12\u65f6\uff0c\u63a5\u6536\u7075\u654f\u5ea6\u4f1a\u964d\u4f4e\u5230-140 dBm\u5de6\u53f3\uff0c\u8fd9\u76f4\u63a5\u5f71\u54cd\u4e86\u901a\u4fe1\u8ddd\u79bb\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u53e6\u5916\uff0c\u6570\u636e\u901f\u7387\u4e0e\u63a5\u6536\u7075\u654f\u5ea6\u6210\u53cd\u6bd4\u5173\u7cfb\u3002\u5373\u6570\u636e\u901f\u7387\u8d8a\u9ad8\uff0c\u63a5\u6536\u7075\u654f\u5ea6\u76f8\u5bf9\u53d8\u4f4e\uff0c\u4f20\u8f93\u8ddd\u79bb\u76f8\u5bf9\u53d8\u77ed;\u53cd\u4e4b\u4ea6\u7136\u3002\u56e0\u6b64\uff0c\u5728\u8bbe\u8ba1LoRa\u901a\u4fe1\u7cfb\u7edf\u65f6\uff0c\u9700\u8981\u7efc\u5408\u8003\u8651\u6570\u636e\u901f\u7387\u3001\u63a5\u6536\u7075\u654f\u5ea6\u548c\u4f20\u8f93\u8ddd\u79bb\u4e4b\u95f4\u7684\u5173\u7cfb\uff0c\u4ee5\u4f18\u5316\u901a\u4fe1\u6027\u80fd\u3002<\/p>\n\n\n\n<p>\u3000\u3000LoRa\u6a21\u5757\u7684\u63a5\u6536\u7075\u654f\u5ea6\u5bf9\u4f20\u8f93\u8ddd\u79bb\u7684\u5f71\u54cd\u4e3b\u8981\u4f53\u73b0\u5728\uff1a\u63a5\u6536\u7075\u654f\u5ea6\u8d8a\u9ad8\uff0c\u80fd\u591f\u68c0\u6d4b\u5230\u7684\u4fe1\u53f7\u8d8a\u5fae\u5f31\uff0c\u4ece\u800c\u5ef6\u957f\u901a\u4fe1\u8ddd\u79bb;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u56db\u3001 \u5728\u57ce\u5e02\u73af\u5883\u54ea\u4e9b\u56e0\u7d20\u6700\u5f71\u54cdLoRa\u6a21\u5757\u7684\u4f20\u8f93\u8ddd\u79bb?<\/h2>\n\n\n\n<p>\u3000\u3000\u5728\u57ce\u5e02\u73af\u5883\u4e2d\uff0cLoRa\u6a21\u5757\u7684\u4f20\u8f93\u8ddd\u79bb\u53d7\u5230\u591a\u79cd\u56e0\u7d20\u7684\u5f71\u54cd\u3002\u4ee5\u4e0b\u56e0\u7d20\u6700\u4e3a\u5173\u952e\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u4fe1\u53f7\u5e72\u6270\u548c\u591a\u5f84\u6548\u5e94<\/strong>\uff1a\u57ce\u5e02\u73af\u5883\u4e2d\u5b58\u5728\u5927\u91cf\u7684\u4fe1\u53f7\u5e72\u6270\u548c\u591a\u5f84\u6548\u5e94\uff0c\u8fd9\u4e9b\u56e0\u7d20\u4f1a\u663e\u8457\u964d\u4f4eLoRa\u4fe1\u53f7\u7684\u4f20\u8f93\u8ddd\u79bb\u3002\u4f8b\u5982\uff0c\u6587\u732e\u6307\u51fa\uff0c\u5728\u57ce\u5e02\u73af\u5883\u4e2d\uff0cLoRa\u94fe\u8def\u7684\u6027\u80fd\u53d7\u5230\u4fe1\u53f7\u5e72\u6270\u3001\u4e30\u5bcc\u7684\u591a\u5f84\u6548\u5e94\u4ee5\u53ca\u7531\u4e8e\u4e0d\u540c\u5c4f\u853d\u7269\u5bfc\u81f4\u7684\u94fe\u8def\u8870\u51cf\u7684\u5f71\u54cd\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u8def\u5f84\u635f\u8017<\/strong>\uff1a\u8def\u5f84\u635f\u8017\u662f\u5f71\u54cdLoRa\u4f20\u8f93\u8ddd\u79bb\u7684\u91cd\u8981\u56e0\u7d20\u4e4b\u4e00\u3002\u5728\u57ce\u5e02\u73af\u5883\u4e2d\uff0c\u5efa\u7b51\u7269\u548c\u5176\u4ed6\u969c\u788d\u7269\u4f1a\u5bfc\u81f4\u4fe1\u53f7\u8870\u51cf\uff0c\u4ece\u800c\u9650\u5236\u4e86\u4f20\u8f93\u8ddd\u79bb\u3002\u4f8b\u5982\uff0c\u6709\u7814\u7a76\u8868\u660e\uff0c\u5728\u57ce\u5e02\u73af\u5883\u4e2d\uff0c\u6700\u5927\u901a\u4fe1\u8ddd\u79bb\u4e3a867\u7c73\uff0c\u8fd9\u4e3b\u8981\u662f\u7531\u4e8e\u8def\u5f84\u635f\u8017\u7684\u5f71\u54cd\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u4fe1\u566a\u6bd4\uff08SNR\uff09<\/strong>&nbsp;\uff1a\u4fe1\u566a\u6bd4\u662f\u53e6\u4e00\u4e2a\u5173\u952e\u56e0\u7d20\uff0c\u5b83\u76f4\u63a5\u5f71\u54cd\u4fe1\u53f7\u7684\u8d28\u91cf\u548c\u4f20\u8f93\u8ddd\u79bb\u3002\u8f83\u9ad8\u7684\u4fe1\u566a\u6bd4\u901a\u5e38\u610f\u5473\u7740\u66f4\u8fdc\u7684\u6210\u529f\u4f20\u8f93\u8ddd\u79bb\uff0c\u4f46\u540c\u65f6\u4e5f\u589e\u52a0\u4e86\u5e72\u6270\u7684\u53ef\u80fd\u6027\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u6570\u636e\u901f\u7387\u548c\u6269\u9891\u56e0\u5b50<\/strong>\uff1a\u6570\u636e\u901f\u7387\u548c\u6269\u9891\u56e0\u5b50\u7684\u9009\u62e9\u4e5f\u4f1a\u5f71\u54cd\u4f20\u8f93\u8ddd\u79bb\u3002\u8f83\u4f4e\u7684\u6570\u636e\u901f\u7387\u53ef\u4ee5\u589e\u52a0\u94fe\u8def\u7684\u9c81\u68d2\u6027\uff0c\u4f46\u4f1a\u964d\u4f4e\u4f20\u8f93\u901f\u7387\u3002\u540c\u65f6\uff0c\u8f83\u9ad8\u7684\u6269\u9891\u56e0\u5b50\u867d\u7136\u53ef\u4ee5\u589e\u52a0\u4f20\u8f93\u8ddd\u79bb\uff0c\u4f46\u4e5f\u589e\u52a0\u4e86\u5e72\u6270\u7684\u53ef\u80fd\u6027\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u5929\u7ebf\u589e\u76ca\u548c\u4f4d\u7f6e<\/strong>\uff1a\u5929\u7ebf\u7684\u589e\u76ca\u548c\u4f4d\u7f6e\u4e5f\u662f\u5f71\u54cd\u4f20\u8f93\u8ddd\u79bb\u7684\u91cd\u8981\u56e0\u7d20\u3002\u5728\u57ce\u5e02\u73af\u5883\u4e2d\uff0c\u5929\u7ebf\u7684\u89d2\u5ea6\u548c\u4f4d\u7f6e\u4f1a\u5f71\u54cd\u4fe1\u53f7\u7684\u8986\u76d6\u8303\u56f4\u548c\u8d28\u91cf\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u73af\u5883\u56e0\u7d20<\/strong>\uff1a\u57ce\u5e02\u73af\u5883\u4e2d\u7684\u5404\u79cd\u7269\u7406\u6761\u4ef6\uff0c\u5982\u5efa\u7b51\u7269\u3001\u6811\u6728\u548c\u5176\u4ed6\u969c\u788d\u7269\uff0c\u90fd\u4f1a\u5bf9LoRa\u4fe1\u53f7\u4ea7\u751f\u5f71\u54cd\u3002\u4f8b\u5982\uff0c\u6587\u732e\u4e2d\u63d0\u5230\uff0c\u5728\u57ce\u5e02\u73af\u5883\u4e2d\uff0c\u8986\u76d6\u8303\u56f4\u901a\u5e38\u5728\u51e0\u516c\u91cc\u5185\uff0c\u800c\u5b9e\u9645\u5e94\u7528\u4e2d\u53ef\u80fd\u56e0\u4e3a\u73af\u5883\u56e0\u7d20\u800c\u6709\u6240\u4e0d\u540c\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e94\u3001 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