{"id":98132,"date":"2024-10-10T09:50:35","date_gmt":"2024-10-10T01:50:35","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=98132"},"modified":"2024-10-10T09:50:41","modified_gmt":"2024-10-10T01:50:41","slug":"ltxslhjldgx","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/98132.html","title":{"rendered":"LoRa\u901a\u4fe1\u901f\u7387\u548c\u8ddd\u79bb\u7684\u5173\u7cfb"},"content":{"rendered":"\n

\u3000\u3000LoRa\u901a\u4fe1\u901f\u7387<\/strong>\u548c\u8ddd\u79bb\u4e4b\u95f4\u5b58\u5728\u4e00\u5b9a\u7684\u6743\u8861\u5173\u7cfb\u3002\u53ef\u4ee5\u603b\u7ed3\u51fa\u4ee5\u4e0b\u51e0\u70b9\uff1a<\/p>\n\n\n\n

\u3000\u3000\u901f\u7387\u4e0e\u8ddd\u79bb\u7684\u5173\u7cfb<\/strong>\uff1a<\/p>\n\n\n\n

\u3000\u3000LoRa\u6280\u672f\u901a\u8fc7\u8c03\u6574\u6269\u9891\u56e0\u5b50(SF)\u3001\u5e26\u5bbd(BW)\u548c\u7f16\u7801\u7387\u6765\u5e73\u8861\u6570\u636e\u901f\u7387\u548c\u4f20\u8f93\u8ddd\u79bb\u3002\u8f83\u9ad8\u7684\u6269\u9891\u56e0\u5b50\u5141\u8bb8\u66f4\u8fdc\u7684\u4f20\u8f93\u8ddd\u79bb\uff0c\u4f46\u76f8\u5e94\u7684\u6570\u636e\u901f\u7387\u4f1a\u964d\u4f4e;\u53cd\u4e4b\u4ea6\u7136\u3002<\/p>\n\n\n\n

\u3000\u3000\u4f8b\u5982\uff0c\u5728\u57ce\u5e02\u73af\u5883\u4e2d\uff0c\u4f7f\u7528\u8f83\u4f4e\u7684\u6269\u9891\u56e0\u5b50(\u5982SF7\u5230SF9)\u53ef\u4ee5\u83b7\u5f97\u8f83\u9ad8\u7684\u6570\u636e\u901f\u7387\uff0c\u4f46\u4f20\u8f93\u8ddd\u79bb\u8f83\u77ed;\u800c\u5728\u5f00\u9614\u5730\u533a\uff0c\u4f7f\u7528\u8f83\u9ad8\u7684\u6269\u9891\u56e0\u5b50(\u5982SF12)\u53ef\u4ee5\u5b9e\u73b0\u66f4\u8fdc\u7684\u4f20\u8f93\u8ddd\u79bb\uff0c\u4f46\u6570\u636e\u901f\u7387\u8f83\u4f4e\u3002<\/p>\n\n\n\n

\u3000\u3000\u5177\u4f53\u6570\u503c<\/strong>\uff1a<\/p>\n\n\n\n

\u3000\u3000LoRa\u82af\u7247\u7684\u4f20\u8f93\u901f\u7387\u901a\u5e38\u57280.3kbps\u523050kbps\u4e4b\u95f4\uff0c\u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u9700\u6c42\u8fdb\u884c\u8c03\u8282\u3002<\/p>\n\n\n\n

\u3000\u3000\u5728\u7406\u60f3\u6761\u4ef6\u4e0b\uff0cLoRa\u6a21\u5757\u7684\u4f20\u8f93\u8ddd\u79bb\u53ef\u4ee5\u8fbe\u5230\u76f8\u5f53\u8fdc\u7684\u8ddd\u79bb\u3002\u4f8b\u5982\uff0c\u5728\u90ca\u533a\u6216\u7a7a\u65f7\u5730\u533a\uff0cLoRa\u6280\u672f\u7684\u4f20\u8f93\u8ddd\u79bb\u6700\u9ad8\u53ef\u8fbe15\u516c\u91cc\u3002<\/p>\n\n\n\n

\u3000\u3000\u5f71\u54cd\u56e0\u7d20<\/strong>\uff1a<\/p>\n\n\n\n

\u3000\u3000\u9664\u4e86\u901f\u7387\u548c\u6269\u9891\u56e0\u5b50\u5916\uff0c\u4f20\u8f93\u529f\u7387\u3001\u5929\u7ebf\u589e\u76ca\u3001\u73af\u5883\u969c\u788d\u7b49\u4e5f\u4f1a\u5f71\u54cdLoRa\u7684\u4f20\u8f93\u8ddd\u79bb\u3002<\/p>\n\n\n\n

\u3000\u3000\u81ea\u7531\u7a7a\u95f4\u8def\u5f84\u635f\u8017\u4e5f\u662f\u4e00\u4e2a\u91cd\u8981\u56e0\u7d20\uff0c\u8ddd\u79bb\u52a0\u500d\u4f1a\u4f7f\u8def\u5f84\u635f\u8017\u589e\u52a06 dB\u3002<\/p>\n\n\n\n

\u3000\u3000\u5b9e\u9645\u5e94\u7528\u4e2d\u7684\u6743\u8861<\/strong>\uff1a<\/p>\n\n\n\n

\u3000\u3000\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u4e3a\u4e86\u6700\u5927\u5316\u7ec8\u7aef\u8bbe\u5907\u7535\u6c60\u5bff\u547d\u548c\u6574\u4e2a\u7f51\u7edc\u5bb9\u91cf\uff0cLoRaWAN\u7f51\u7edc\u670d\u52a1\u5668\u901a\u8fc7\u4e00\u79cd\u901f\u7387\u81ea\u9002\u5e94(ADR)\u65b9\u6848\u6765\u63a7\u5236\u6570\u636e\u4f20\u8f93\u901f\u7387\u548c\u6bcf\u4e00\u8282\u70b9\u7684\u53d1\u5c04\u529f\u7387\u3002<\/p>\n\n\n\n

\u3000\u3000\u9ad8\u901f\u7387\u4f20\u8f93\u9002\u7528\u4e8e\u77ed\u8ddd\u79bb\u5e94\u7528\uff0c\u800c\u4f4e\u901f\u7387\u4f20\u8f93\u9002\u7528\u4e8e\u957f\u8ddd\u79bb\u5e94\u7528\u3002<\/p>\n\n\n\n

\u3000\u3000LoRa\u901a\u4fe1\u901f\u7387\u548c\u8ddd\u79bb\u4e4b\u95f4\u7684\u5173\u7cfb\u662f\u901a\u8fc7\u8c03\u6574\u6269\u9891\u56e0\u5b50\u3001\u5e26\u5bbd\u548c\u7f16\u7801\u7387\u6765\u5b9e\u73b0\u7684\u3002\u8f83\u9ad8\u7684\u901f\u7387\u901a\u5e38\u5bf9\u5e94\u8f83\u77ed\u7684\u4f20\u8f93\u8ddd\u79bb\uff0c\u800c\u8f83\u957f\u7684\u4f20\u8f93\u8ddd\u79bb\u5219\u9700\u8981\u8f83\u4f4e\u7684\u901f\u7387\u3002\u6b64\u5916\uff0c\u4f20\u8f93\u529f\u7387\u3001\u5929\u7ebf\u589e\u76ca\u548c\u73af\u5883\u6761\u4ef6\u7b49\u56e0\u7d20\u4e5f\u4f1a\u5bf9\u5b9e\u9645\u7684\u4f20\u8f93\u8ddd\u79bb\u4ea7\u751f\u5f71\u54cd\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e00\u3001 LoRa\u901a\u4fe1\u4e2d\u6269\u9891\u56e0\u5b50\u3001\u5e26\u5bbd\u548c\u7f16\u7801\u7387\u5bf9\u6570\u636e\u901f\u7387\u548c\u4f20\u8f93\u8ddd\u79bb\u7684\u5177\u4f53\u5f71\u54cd<\/h2>\n\n\n\n

\u3000\u3000\u5728LoRa\u901a\u4fe1\u4e2d\uff0c\u6269\u9891\u56e0\u5b50(SF)\u3001\u5e26\u5bbd(BW)\u548c\u7f16\u7801\u7387(CR)\u662f\u4e09\u4e2a\u5173\u952e\u53c2\u6570\uff0c\u5b83\u4eec\u5bf9\u6570\u636e\u901f\u7387\u548c\u4f20\u8f93\u8ddd\u79bb\u6709\u663e\u8457\u5f71\u54cd\u3002<\/p>\n\n\n\n

\u3000\u3000\u6269\u9891\u56e0\u5b50\u51b3\u5b9a\u4e86\u4fe1\u53f7\u5728\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u7684\u6269\u9891\u7a0b\u5ea6\uff0c\u8fdb\u800c\u5f71\u54cd\u4fe1\u53f7\u7684\u5e26\u5bbd\u548c\u8986\u76d6\u8303\u56f4\u3002\u6269\u9891\u56e0\u5b50\u7684\u589e\u52a0\u4f1a\u5bfc\u81f4\u4fe1\u53f7\u5e26\u5bbd\u7684\u589e\u52a0\uff0c\u4ece\u800c\u63d0\u9ad8\u6297\u5e72\u6270\u80fd\u529b\u548c\u4f20\u8f93\u8ddd\u79bb\u3002\u7136\u800c\uff0c\u6269\u9891\u56e0\u5b50\u7684\u589e\u52a0\u4e5f\u4f1a\u964d\u4f4e\u6570\u636e\u4f20\u8f93\u901f\u7387\uff0c\u56e0\u4e3a\u6bcf\u4e2a\u4fe1\u606f\u7801\u7247\u4ee3\u8868\u7684\u6709\u6548\u8d1f\u8f7d\u4fe1\u606f\u51cf\u5c11\u3002\u5f53\u6269\u9891\u56e0\u5b50\u4e3a6\u65f6\uff0cLoRa\u7684\u6570\u636e\u4f20\u8f93\u901f\u7387\u6700\u5feb\uff0c\u4f46\u8fd9\u79cd\u8bbe\u7f6e\u901a\u5e38\u53ea\u5728\u7279\u5b9a\u60c5\u51b5\u4e0b\u4f7f\u7528\u3002<\/p>\n\n\n\n

\u3000\u3000\u5e26\u5bbd\u662f\u6307\u4f20\u8f93\u4fe1\u53f7\u6240\u5360\u636e\u7684\u9891\u8c31\u8303\u56f4\u3002\u4e0d\u540c\u7684\u5e26\u5bbd\u8bbe\u7f6e\u5bf9\u4e8e\u901a\u4fe1\u8ddd\u79bb\u3001\u6570\u636e\u901f\u7387\u548c\u6297\u5e72\u6270\u80fd\u529b\u7b49\u90fd\u4f1a\u4ea7\u751f\u5f71\u54cd\u3002\u4e00\u822c\u6765\u8bf4\uff0c\u8f83\u5bbd\u7684\u5e26\u5bbd\u80fd\u591f\u63d0\u4f9b\u66f4\u9ad8\u7684\u6570\u636e\u901f\u7387\uff0c\u4f46\u540c\u65f6\u4e5f\u4f1a\u964d\u4f4e\u6297\u5e72\u6270\u80fd\u529b\u3002\u5728\u6b27\u6d32\u5730\u533a\uff0cLoRaWAN\u6807\u51c6\u5b9a\u4e49\u4e86\u4e24\u79cd\u4e0d\u540c\u7684\u5e26\u5bbd\uff1a125kHz\u548c250kHz\uff0c\u53ef\u4ee5\u6839\u636e\u9700\u8981\u8fdb\u884c\u8c03\u6574\u3002<\/p>\n\n\n\n

\u3000\u3000\u7f16\u7801\u7387\u76f4\u63a5\u5f71\u54cd\u6570\u636e\u4f20\u8f93\u901f\u7387\u3002\u8f83\u9ad8\u7684\u7f16\u7801\u7387\u610f\u5473\u7740\u66f4\u9ad8\u7684\u6570\u636e\u4f20\u8f93\u901f\u7387\uff0c\u4f46\u540c\u65f6\u4e5f\u4f1a\u589e\u52a0\u529f\u8017\u548c\u964d\u4f4e\u4fe1\u53f7\u7684\u53ef\u9760\u6027\u3002\u7f16\u7801\u7387\u7684\u9009\u62e9\u9700\u8981\u5728\u6570\u636e\u901f\u7387\u548c\u4fe1\u53f7\u53ef\u9760\u6027\u4e4b\u95f4\u627e\u5230\u5e73\u8861\u70b9\u3002<\/p>\n\n\n\n

\u3000\u3000\u6269\u9891\u56e0\u5b50\u3001\u5e26\u5bbd\u548c\u7f16\u7801\u7387\u5728LoRa\u901a\u4fe1\u4e2d\u76f8\u4e92\u4f5c\u7528\uff0c\u5171\u540c\u51b3\u5b9a\u4e86\u6570\u636e\u901f\u7387\u548c\u4f20\u8f93\u8ddd\u79bb\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e8c\u3001 \u5728\u4e0d\u540c\u73af\u5883\u6761\u4ef6\u4e0bLoRa\u901a\u4fe1\u7684\u6700\u4f18\u4f20\u8f93\u53c2\u6570?<\/h2>\n\n\n\n

\u3000\u3000\u5728\u4e0d\u540c\u73af\u5883\u6761\u4ef6\u4e0b\uff0cLoRa\u901a\u4fe1\u7684\u6700\u4f18\u4f20\u8f93\u53c2\u6570(\u6269\u9891\u56e0\u5b50\u3001\u5e26\u5bbd\u3001\u7f16\u7801\u7387)\u4f1a\u6709\u6240\u4e0d\u540c\u3002\u6839\u636e\u641c\u7d22\u7ed3\u679c\uff0c\u6211\u4eec\u53ef\u4ee5\u603b\u7ed3\u5982\u4e0b\uff1a<\/p>\n\n\n\n

\u3000\u3000\u6269\u9891\u56e0\u5b50\uff08SF\uff09<\/strong> \uff1a\u6269\u9891\u56e0\u5b50\u51b3\u5b9a\u4e86\u4fe1\u53f7\u7684\u6269\u9891\u7a0b\u5ea6\uff0c\u8303\u56f4\u4ece7\u523012.\u6570\u503c\u8d8a\u5927\uff0c\u4f20\u8f93\u8ddd\u79bb\u8d8a\u8fdc\uff0c\u4f46\u6570\u636e\u901f\u7387\u4f1a\u964d\u4f4e\u3002\u5728\u57ce\u5e02\u73af\u5883\u4e2d\uff0c\u7531\u4e8e\u5b58\u5728\u8f83\u591a\u7684\u969c\u788d\u7269\uff0c\u53ef\u80fd\u9700\u8981\u4f7f\u7528\u8f83\u4f4e\u7684\u6269\u9891\u56e0\u5b50\u4ee5\u4fdd\u6301\u8f83\u9ad8\u7684\u6570\u636e\u901f\u7387\u3002\u800c\u5728\u7a7a\u65f7\u5730\u533a\uff0c\u4e3a\u4e86\u6700\u5927\u5316\u4f20\u8f93\u8ddd\u79bb\uff0c\u53ef\u4ee5\u4f7f\u7528\u8f83\u9ad8\u7684\u6269\u9891\u56e0\u5b50\u3002<\/p>\n\n\n\n

\u3000\u3000\u5e26\u5bbd\uff08BW\uff09<\/strong> \uff1a\u5e26\u5bbd\u5f71\u54cd\u4fe1\u53f7\u7684\u8986\u76d6\u8303\u56f4\u548c\u6570\u636e\u901f\u7387\u3002\u5728\u57ce\u5e02\u73af\u5883\u4e2d\uff0c\u7531\u4e8e\u4fe1\u53f7\u53ef\u80fd\u53d7\u5230\u8f83\u591a\u5e72\u6270\uff0c\u4f7f\u7528\u8f83\u7a84\u7684\u5e26\u5bbd(\u5982125kHz)\u53ef\u80fd\u66f4\u6709\u5229\u4e8e\u51cf\u5c11\u5e72\u6270\u3002\u800c\u5728\u7a7a\u65f7\u5730\u533a\uff0c\u4e3a\u4e86\u6700\u5927\u5316\u4f20\u8f93\u8ddd\u79bb\uff0c\u53ef\u4ee5\u4f7f\u7528\u8f83\u5bbd\u7684\u5e26\u5bbd(\u5982500kHz)\u3002<\/p>\n\n\n\n

\u3000\u3000\u7f16\u7801\u7387\uff08CR\uff09<\/strong> \uff1a\u7f16\u7801\u7387\u5f71\u54cd\u6570\u636e\u7684\u53ef\u9760\u6027\u548c\u4f20\u8f93\u6548\u7387\u3002\u8f83\u9ad8\u7684\u7f16\u7801\u7387\u610f\u5473\u7740\u66f4\u9ad8\u7684\u6570\u636e\u53ef\u9760\u6027\uff0c\u4f46\u4f1a\u964d\u4f4e\u6570\u636e\u4f20\u8f93\u901f\u7387\u3002\u5728\u57ce\u5e02\u73af\u5883\u4e2d\uff0c\u4e3a\u4e86\u4fdd\u6301\u8f83\u9ad8\u7684\u6570\u636e\u901f\u7387\uff0c\u53ef\u80fd\u9700\u8981\u4f7f\u7528\u8f83\u4f4e\u7684\u7f16\u7801\u7387\u3002\u800c\u5728\u7a7a\u65f7\u5730\u533a\uff0c\u4e3a\u4e86\u786e\u4fdd\u6570\u636e\u7684\u53ef\u9760\u6027\uff0c\u53ef\u4ee5\u4f7f\u7528\u8f83\u9ad8\u7684\u7f16\u7801\u7387\u3002<\/p>\n\n\n\n

\u3000\u3000\u5177\u4f53\u53c2\u6570\u914d\u7f6e\u9700\u8981\u6839\u636e\u5b9e\u9645\u73af\u5883\u6761\u4ef6\u548c\u5e94\u7528\u9700\u6c42\u8fdb\u884c\u8c03\u6574\u3002\u4f8b\u5982\uff0c\u5728\u57ce\u5e02\u73af\u5883\u4e2d\uff0c\u53ef\u80fd\u9700\u8981\u4f7f\u7528\u8f83\u4f4e\u7684\u6269\u9891\u56e0\u5b50\u548c\u8f83\u7a84\u7684\u5e26\u5bbd\uff0c\u4ee5\u53ca\u8f83\u4f4e\u7684\u7f16\u7801\u7387\uff0c\u4ee5\u4fdd\u6301\u8f83\u9ad8\u7684\u6570\u636e\u901f\u7387\u548c\u51cf\u5c11\u5e72\u6270\u3002\u800c\u5728\u7a7a\u65f7\u5730\u533a\uff0c\u4e3a\u4e86\u6700\u5927\u5316\u4f20\u8f93\u8ddd\u79bb\uff0c\u53ef\u4ee5\u4f7f\u7528\u8f83\u9ad8\u7684\u6269\u9891\u56e0\u5b50\u548c\u8f83\u5bbd\u7684\u5e26\u5bbd\uff0c\u4ee5\u53ca\u8f83\u9ad8\u7684\u7f16\u7801\u7387\uff0c\u4ee5\u786e\u4fdd\u6570\u636e\u7684\u53ef\u9760\u6027\u3002<\/p>\n\n\n\n

\u3000\u3000\u4ee5\u4e0a\u7ed3\u8bba\u57fa\u4e8e\u4e2d\u7684\u4fe1\u606f\u3002\u63d0\u5230\u5728\u57ce\u5e02\u73af\u5883\u4e2d\uff0cLoRa\u901a\u4fe1\u7684\u8986\u76d6\u8303\u56f4\u53d7\u5230\u969c\u788d\u7269\u7684\u5f71\u54cd\uff0c\u56e0\u6b64\u53ef\u80fd\u9700\u8981\u4f7f\u7528\u8f83\u4f4e\u7684\u6269\u9891\u56e0\u5b50\u548c\u8f83\u7a84\u7684\u5e26\u5bbd\u3002\u901a\u8fc7\u5b9e\u9a8c\u53d1\u73b0\uff0c\u5728\u4e18\u9675\u5730\u533a(\u7c7b\u4f3c\u57ce\u5e02\u73af\u5883)\uff0c\u4f7f\u7528\u6269\u9891\u56e0\u5b507\u548c\u5e26\u5bbd125kHz\u65f6\uff0c\u901a\u4fe1\u8303\u56f4\u4e3a500m\u81f3800m\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e09\u3001 LoRaWAN\u7f51\u7edc\u4e2d\u7684\u901f\u7387\u81ea\u9002\u5e94(ADR)\u65b9\u6848<\/h2>\n\n\n\n

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