{"id":100322,"date":"2025-01-09T09:42:31","date_gmt":"2025-01-09T01:42:31","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=100322"},"modified":"2025-01-09T09:42:35","modified_gmt":"2025-01-09T01:42:35","slug":"lxhryssmyx-2","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/100322.html","title":{"rendered":"LoRa\u4fe1\u53f7\u5bb9\u6613\u53d7\u4ec0\u4e48\u5f71\u54cd\uff1f"},"content":{"rendered":"\n

\u3000\u3000LoRa\u4fe1\u53f7<\/strong>\u5bb9\u6613\u53d7\u5230\u591a\u79cd\u56e0\u7d20\u7684\u5f71\u54cd\uff0c\u8fd9\u4e9b\u56e0\u7d20\u53ef\u80fd\u4f1a\u5f71\u54cd\u5176\u4f20\u8f93\u8d28\u91cf\u548c\u53ef\u9760\u6027\u3002\u4ee5\u4e0b\u662fLoRa\u4fe1\u53f7\u5bb9\u6613\u53d7\u5230\u7684\u4e3b\u8981\u5f71\u54cd\u56e0\u7d20\uff1a<\/p>\n\n\n\n

\u3000\u3000\u591a\u5f84\u6548\u5e94<\/strong>\uff1a\u5f53\u4fe1\u53f7\u5728\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u9047\u5230\u5efa\u7b51\u7269\u3001\u6811\u6728\u7b49\u969c\u788d\u7269\u65f6\uff0c\u4f1a\u5f62\u6210\u591a\u6761\u53cd\u5c04\u8def\u5f84\u3002\u8fd9\u4e9b\u8def\u5f84\u4e0a\u7684\u4fe1\u53f7\u5230\u8fbe\u63a5\u6536\u7aef\u65f6\u53ef\u80fd\u4f1a\u4ea7\u751f\u76f8\u4f4d\u5dee\u548c\u5f3a\u5ea6\u5dee\uff0c\u4ece\u800c\u5bfc\u81f4\u4fe1\u53f7\u5931\u771f\u6216\u8870\u843d\u3002<\/p>\n\n\n\n

\u3000\u3000\u73af\u5883\u56e0\u7d20<\/strong>\uff1a<\/p>\n\n\n\n

\u3000\u3000\u7535\u78c1\u5e72\u6270<\/strong>\uff1a\u9ad8\u538b\u7535\u7ebf\u3001\u65e0\u7ebf\u7535\u5e7f\u64ad\u3001\u96f7\u8fbe\u7b49\u5f3a\u7535\u78c1\u6e90\u4f1a\u5bf9LoRa\u901a\u4fe1\u9020\u6210\u4e0d\u5229\u5f71\u54cd\u3002<\/p>\n\n\n\n

\u3000\u3000\u6076\u52a3\u5929\u6c14\u6761\u4ef6<\/strong>\uff1a\u5982\u96f7\u66b4\u3001\u964d\u96e8\u7b49\u5929\u6c14\u56e0\u7d20\u53ef\u80fd\u5bfc\u81f4\u4fe1\u53f7\u8870\u51cf\uff0c\u5f71\u54cd\u901a\u4fe1\u8d28\u91cf\u3002<\/p>\n\n\n\n

\u3000\u3000\u6e29\u5ea6\u53d8\u5316<\/strong>\uff1a\u9ad8\u6e29\u4f1a\u5bfc\u81f4LoRa\u4fe1\u53f7\u5f3a\u5ea6\u4e0b\u964d\uff0c\u5c24\u5176\u662f\u5728\u8bbe\u5907\u957f\u65f6\u95f4\u66b4\u9732\u4e8e\u9ad8\u6e29\u73af\u5883\u4e2d\u65f6\uff0c\u4fe1\u53f7\u8d28\u91cf\u4f1a\u9010\u6e10\u964d\u4f4e\u3002<\/p>\n\n\n\n

\u3000\u3000\u969c\u788d\u7269\u548c\u5730\u5f62<\/strong>\uff1a<\/p>\n\n\n\n

\u3000\u3000\u5efa\u7b51\u7269\u548c\u6811\u6728<\/strong>\uff1a\u8fd9\u4e9b\u969c\u788d\u7269\u4f1a\u963b\u6321\u4fe1\u53f7\u4f20\u64ad\uff0c\u5bfc\u81f4\u4fe1\u53f7\u8870\u51cf\u3002<\/p>\n\n\n\n

\u3000\u3000\u690d\u88ab\u8986\u76d6<\/strong>\uff1a\u5728\u68ee\u6797\u6216\u5176\u4ed6\u690d\u88ab\u5bc6\u96c6\u7684\u533a\u57df\uff0c\u690d\u88ab\u5bf9\u4fe1\u53f7\u7684\u8870\u51cf\u4f5c\u7528\u663e\u8457\u3002<\/p>\n\n\n\n

\u3000\u3000\u9891\u7387\u5e72\u6270<\/strong>\uff1a\u5176\u4ed6\u65e0\u7ebf\u4fe1\u53f7\u53ef\u80fd\u4f1a\u5e72\u6270LoRa\u4fe1\u53f7\u7684\u4f20\u8f93\uff0c\u7279\u522b\u662f\u5728\u540c\u4e00\u9891\u6bb5\u5185\u5b58\u5728\u591a\u4e2a\u5e72\u6270\u6e90\u65f6\u3002<\/p>\n\n\n\n

\u3000\u3000\u591a\u7528\u6237\u5e72\u6270<\/strong>\uff1a\u5728LoRaWAN\u7f51\u7edc\u4e2d\uff0c\u7531\u4e8e\u91c7\u7528ALOHA\u534f\u8bae\u673a\u5236\uff0c\u591a\u4e2a\u8bbe\u5907\u540c\u65f6\u53d1\u9001\u6570\u636e\u53ef\u80fd\u4f1a\u5bfc\u81f4\u4fe1\u53f7\u78b0\u649e\uff0c\u4ece\u800c\u964d\u4f4e\u901a\u4fe1\u6548\u7387\u3002<\/p>\n\n\n\n

\u3000\u3000Doppler\u6548\u5e94<\/strong>\uff1a\u5728\u536b\u661f\u901a\u4fe1\u4e2d\uff0cLoRa\u4fe1\u53f7\u53ef\u80fd\u4f1a\u53d7\u5230Doppler\u6548\u5e94\u7684\u5f71\u54cd\uff0c\u5c24\u5176\u662f\u5728\u4f4e\u5730\u7403\u8f68\u9053(LEO)\u536b\u661f\u901a\u4fe1\u4e2d\uff0c\u8fd9\u79cd\u6548\u5e94\u4f1a\u5bfc\u81f4\u4fe1\u53f7\u9891\u7387\u7684\u53d8\u5316\u3002<\/p>\n\n\n\n

\u3000\u3000\u786c\u4ef6\u548c\u4f20\u8f93\u53c2\u6570<\/strong>\uff1a<\/p>\n\n\n\n

\u3000\u3000\u5929\u7ebf\u589e\u76ca\u548c\u89d2\u5ea6<\/strong>\uff1a\u5929\u7ebf\u7684\u589e\u76ca\u548c\u89d2\u5ea6\u4f1a\u5f71\u54cd\u4fe1\u53f7\u7684\u4f20\u64ad\u8ddd\u79bb\u548c\u8d28\u91cf\u3002<\/p>\n\n\n\n

\u3000\u3000\u6269\u9891\u56e0\u5b50\uff08SF\uff09\u548c\u5e26\u5bbd\uff08BW\uff09<\/strong> \uff1a\u8fd9\u4e9b\u53c2\u6570\u76f4\u63a5\u5f71\u54cd\u4fe1\u53f7\u7684\u4f20\u8f93\u901f\u7387\u3001\u6709\u6548\u8ddd\u79bb\u548c\u6297\u5e72\u6270\u80fd\u529b\u3002<\/p>\n\n\n\n

\u3000\u3000LoRa\u4fe1\u53f7\u7684\u4f20\u8f93\u8d28\u91cf\u53d7\u5230\u591a\u79cd\u590d\u6742\u56e0\u7d20\u7684\u5f71\u54cd\uff0c\u5305\u62ec\u73af\u5883\u6761\u4ef6\u3001\u7269\u7406\u969c\u788d\u3001\u7535\u78c1\u5e72\u6270\u4ee5\u53ca\u786c\u4ef6\u914d\u7f6e\u7b49\u3002\u56e0\u6b64\uff0c\u5728\u90e8\u7f72LoRa\u7f51\u7edc\u65f6\uff0c\u9700\u8981\u7efc\u5408\u8003\u8651\u8fd9\u4e9b\u56e0\u7d20\u4ee5\u786e\u4fdd\u901a\u4fe1\u7684\u53ef\u9760\u6027\u548c\u7a33\u5b9a\u6027\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e00\u3001 \u591a\u5f84\u6548\u5e94\u5bf9LoRa\u4fe1\u53f7\u4f20\u8f93\u8d28\u91cf\u7684\u5f71\u54cd<\/h2>\n\n\n\n

\u3000\u3000\u591a\u5f84\u6548\u5e94\u662f\u65e0\u7ebf\u901a\u4fe1\u4e2d\u5e38\u89c1\u7684\u73b0\u8c61\uff0c\u5bf9LoRa(Long Range)\u4fe1\u53f7\u7684\u4f20\u8f93\u8d28\u91cf\u4ea7\u751f\u4e86\u663e\u8457\u5f71\u54cd\u3002\u591a\u5f84\u6548\u5e94\u662f\u6307\u4fe1\u53f7\u5728\u4f20\u64ad\u8fc7\u7a0b\u4e2d\uff0c\u7531\u4e8e\u53cd\u5c04\u3001\u6298\u5c04\u548c\u6563\u5c04\u7b49\u539f\u56e0\uff0c\u6cbf\u4e0d\u540c\u8def\u5f84\u5230\u8fbe\u63a5\u6536\u70b9\u3002\u8fd9\u5bfc\u81f4\u63a5\u6536\u4fe1\u53f7\u7684\u76f8\u4f4d\u3001\u5e45\u5ea6\u548c\u5230\u8fbe\u65f6\u95f4\u53d1\u751f\u53d8\u5316\uff0c\u4ece\u800c\u53ef\u80fd\u5f15\u8d77\u4fe1\u53f7\u7684\u5e72\u6270\u548c\u8870\u51cf\u3002<\/p>\n\n\n\n

\u3000\u3000\u5728LoRa\u901a\u4fe1\u4e2d\uff0c\u591a\u5f84\u6548\u5e94\u53ef\u80fd\u5bfc\u81f4\u4fe1\u53f7\u7684\u5e72\u6d89\u548c\u8870\u51cf\u3002\u7531\u4e8eLoRa\u4f7f\u7528\u7684\u662f\u6269\u9891\u6280\u672f\uff0c\u4fe1\u53f7\u5728\u4e0d\u540c\u8def\u5f84\u4e0a\u7684\u4f20\u64ad\u65f6\u95f4\u5dee\u5f02\u53ef\u80fd\u5bfc\u81f4\u76f8\u4f4d\u5dee\u5f02\uff0c\u4ece\u800c\u5728\u63a5\u6536\u7aef\u4ea7\u751f\u5e72\u6d89\u3002\u8fd9\u79cd\u5e72\u6d89\u53ef\u80fd\u662f\u5efa\u8bbe\u6027\u7684\uff0c\u4e5f\u53ef\u80fd\u662f\u7834\u574f\u6027\u7684\uff0c\u5177\u4f53\u53d6\u51b3\u4e8e\u4fe1\u53f7\u8def\u5f84\u7684\u76f8\u4f4d\u5dee\u5f02\u3002\u7834\u574f\u6027\u5e72\u6d89\u4f1a\u5bfc\u81f4\u4fe1\u53f7\u8870\u51cf\uff0c\u5f71\u54cd\u63a5\u6536\u4fe1\u53f7\u7684\u5f3a\u5ea6\u548c\u53ef\u9760\u6027\uff0c\u8fdb\u800c\u964d\u4f4e\u901a\u4fe1\u8d28\u91cf\u3002<\/p>\n\n\n\n

\u3000\u3000\u5c3d\u7ba1\u591a\u5f84\u6548\u5e94\u5bf9LoRa\u4fe1\u53f7\u4f20\u8f93\u6784\u6210\u6311\u6218\uff0c\u4f46LoRa\u7684\u6269\u9891\u6280\u672f\u548c\u8c03\u5236\u65b9\u5f0f\u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u589e\u5f3a\u4e86\u5176\u5bf9\u591a\u5f84\u6548\u5e94\u7684\u62b5\u6297\u529b\u3002LoRa\u91c7\u7528\u7684\u662fChirp Spread Spectrum(CSS)\u6280\u672f\uff0c\u8fd9\u79cd\u6280\u672f\u5177\u6709\u8f83\u5f3a\u7684\u6297\u5e72\u6270\u80fd\u529b\uff0c\u80fd\u591f\u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u7f13\u89e3\u591a\u5f84\u6548\u5e94\u5e26\u6765\u7684\u8d1f\u9762\u5f71\u54cd\u3002\u6269\u9891\u4fe1\u53f7\u7684\u5bbd\u5e26\u7279\u6027\u4f7f\u5176\u80fd\u591f\u5728\u566a\u58f0\u548c\u5e72\u6270\u4e2d\u66f4\u5bb9\u6613\u88ab\u68c0\u6d4b\u548c\u6062\u590d\uff0c\u5373\u4f7f\u5728\u4fe1\u53f7\u8870\u51cf\u7684\u60c5\u51b5\u4e0b\uff0cLoRa\u7cfb\u7edf\u4ecd\u7136\u80fd\u591f\u7ef4\u6301\u8f83\u9ad8\u7684\u89e3\u7801\u6210\u529f\u7387\u3002<\/p>\n\n\n\n

\u3000\u3000\u6b64\u5916\uff0cLoRa\u7684\u4f4e\u6570\u636e\u901f\u7387\u548c\u957f\u7b26\u53f7\u6301\u7eed\u65f6\u95f4\u4e5f\u6709\u52a9\u4e8e\u62b5\u6297\u591a\u5f84\u6548\u5e94\u3002\u8f83\u957f\u7684\u7b26\u53f7\u6301\u7eed\u65f6\u95f4\u5141\u8bb8\u63a5\u6536\u673a\u5728\u66f4\u957f\u7684\u65f6\u95f4\u7a97\u53e3\u5185\u8fdb\u884c\u4fe1\u53f7\u68c0\u6d4b\u548c\u5904\u7406\uff0c\u4ece\u800c\u66f4\u597d\u5730\u5e94\u5bf9\u7531\u4e8e\u591a\u5f84\u6548\u5e94\u5bfc\u81f4\u7684\u4fe1\u53f7\u5ef6\u8fdf\u548c\u76f8\u4f4d\u53d8\u5316\u3002\u5c3d\u7ba1\u5982\u6b64\uff0c\u5728\u57ce\u5e02\u73af\u5883\u6216\u590d\u6742\u5730\u5f62\u6761\u4ef6\u4e0b\uff0c\u591a\u5f84\u6548\u5e94\u4ecd\u53ef\u80fd\u5bf9LoRa\u7f51\u7edc\u7684\u8986\u76d6\u8303\u56f4\u548c\u901a\u4fe1\u53ef\u9760\u6027\u4ea7\u751f\u5f71\u54cd\u3002\u56e0\u6b64\uff0c\u5728LoRa\u7f51\u7edc\u8bbe\u8ba1\u548c\u90e8\u7f72\u4e2d\uff0c\u8003\u8651\u591a\u5f84\u6548\u5e94\u5e76\u91c7\u53d6\u9002\u5f53\u7684\u6297\u5e72\u6270\u63aa\u65bd(\u5982\u9009\u62e9\u5408\u9002\u7684\u5929\u7ebf\u4f4d\u7f6e\u548c\u9ad8\u5ea6)\u662f\u81f3\u5173\u91cd\u8981\u7684\uff0c\u4ee5\u786e\u4fdd\u4fe1\u53f7\u4f20\u8f93\u7684\u7a33\u5b9a\u6027\u548c\u53ef\u9760\u6027\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e8c\u3001 LoRa\u4fe1\u53f7\u5728\u4e0d\u540c\u73af\u5883\u56e0\u7d20\u4e0b\u7684\u8870\u51cf\u7a0b\u5ea6\u662f\u591a\u5c11?<\/h2>\n\n\n\n

\u3000\u3000LoRa\u4fe1\u53f7\u5728\u6076\u52a3\u5929\u6c14\u6761\u4ef6\u4e0b\u7684\u8868\u73b0\u548c\u5f71\u54cd\uff1a<\/p>\n\n\n\n

\u3000\u3000\u96f7\u66b4\u548c\u964d\u96e8<\/strong>\uff1a\u6076\u52a3\u7684\u5929\u6c14\u6761\u4ef6\u5982\u96f7\u66b4\u548c\u964d\u96e8\u4f1a\u5bfc\u81f4LoRa\u4fe1\u53f7\u7684\u8870\u51cf\u548c\u4e22\u5305\u7387\u589e\u52a0\u3002\u8fd9\u662f\u56e0\u4e3a\u96e8\u6c34\u548c\u96f7\u7535\u6d3b\u52a8\u4f1a\u5e72\u6270\u65e0\u7ebf\u4fe1\u53f7\u7684\u4f20\u64ad\uff0c\u5bfc\u81f4\u4fe1\u53f7\u5f3a\u5ea6\u4e0b\u964d\u3002<\/p>\n\n\n\n

\u3000\u3000\u6e7f\u5ea6\u548c\u6e29\u5ea6<\/strong>\uff1a\u9ad8\u6e29\u548c\u9ad8\u6e7f\u5ea6\u4e5f\u4f1a\u5f71\u54cdLoRa\u4fe1\u53f7\u7684\u4f20\u8f93\u3002\u4f8b\u5982\uff0c\u572860\u00b0C\u7684\u9ad8\u6e29\u4e0b\uff0c\u4fe1\u53f7\u5f3a\u5ea6\u53ef\u80fd\u4e0b\u964d\u5230\u65e0\u6cd5\u4f7f\u7528\u7684\u7a0b\u5ea6\u3002\u6b64\u5916\uff0c\u70ed\u5e26\u6c14\u5019\u4e0b\u7684\u6e7f\u5ea6\u5bf9LoRa\u4fe1\u53f7\u7684\u4f20\u64ad\u6027\u80fd\u6709\u663e\u8457\u5f71\u54cd\uff0c\u5c24\u5176\u662f\u5728\u690d\u88ab\u8302\u5bc6\u7684\u5730\u533a\u3002<\/p>\n\n\n\n

\u3000\u3000\u5927\u6c14\u6298\u5c04\u53d8\u5316<\/strong>\uff1a\u5927\u6c14\u6298\u5c04\u6761\u4ef6\u7684\u53d8\u5316(\u5982\u5927\u6c14\u4ecb\u7535\u5e38\u6570\u7684\u53d8\u5316)\u4e5f\u4f1a\u5bfc\u81f4\u591a\u5f84\u4fe1\u53f7\u76f8\u5bf9\u65f6\u5ef6\u53d8\u5316\uff0c\u4ece\u800c\u5f15\u8d77\u6162\u8870\u843d\u73b0\u8c61\u3002<\/p>\n\n\n\n

\u3000\u3000\u5176\u4ed6\u73af\u5883\u56e0\u7d20<\/strong>\uff1a\u9664\u4e86\u4e0a\u8ff0\u56e0\u7d20\u5916\uff0c\u5730\u5f62\u3001\u5efa\u7b51\u7269\u3001\u6811\u6728\u7b49\u4e5f\u4f1a\u5bf9LoRa\u4fe1\u53f7\u4ea7\u751f\u5f71\u54cd\u3002\u4f8b\u5982\uff0c\u5728\u5c71\u5730\u6216\u4e1b\u6797\u7b49\u5730\u5f62\u590d\u6742\u7684\u73af\u5883\u4e2d\uff0cLoRa\u4fe1\u53f7\u7684\u4f20\u8f93\u8ddd\u79bb\u4f1a\u53d7\u5230\u9650\u5236\u3002<\/p>\n\n\n\n

\u3000\u3000\u867d\u7136\u6ca1\u6709\u5177\u4f53\u7684\u6570\u503c\u63cf\u8ff0LoRa\u4fe1\u53f7\u5728\u4e0d\u540c\u73af\u5883\u56e0\u7d20\u4e0b\u7684\u8870\u51cf\u7a0b\u5ea6\uff0c\u4f46\u53ef\u4ee5\u786e\u5b9a\u7684\u662f\uff0c\u6076\u52a3\u5929\u6c14\u6761\u4ef6(\u5982\u96f7\u66b4\u3001\u964d\u96e8)\u786e\u5b9e\u4f1a\u5bf9LoRa\u4fe1\u53f7\u7684\u4f20\u8f93\u4ea7\u751f\u663e\u8457\u7684\u8d1f\u9762\u5f71\u54cd\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e09\u3001 \u5728LoRaWAN\u7f51\u7edc\u4e2d\uff0c\u5982\u4f55\u6709\u6548\u51cf\u5c11\u591a\u7528\u6237\u5e72\u6270\u4ee5\u63d0\u9ad8\u901a\u4fe1\u6548\u7387?<\/h2>\n\n\n\n

\u3000\u3000\u5728LoRaWAN\u7f51\u7edc\u4e2d\uff0c\u6709\u6548\u51cf\u5c11\u591a\u7528\u6237\u5e72\u6270\u4ee5\u63d0\u9ad8\u901a\u4fe1\u6548\u7387\u7684\u65b9\u6cd5\u5305\u62ec\uff1a<\/p>\n\n\n\n

    \n
  • \u3000\u3000\u4f18\u5316\u9891\u7387\u89c4\u5212<\/strong>\uff1a\u9009\u62e9\u5408\u9002\u7684\u5de5\u4f5c\u9891\u7387\uff0c\u907f\u514d\u4e0e\u5176\u4ed6\u8bbe\u5907\u9891\u7387\u91cd\u53e0\uff0c\u52a8\u6001\u8c03\u6574\u9891\u7387\uff0c\u589e\u52a0\u53d1\u5c04\u529f\u7387\uff0c\u4f18\u5316\u5de5\u4f5c\u53c2\u6570\u3002<\/li>\n\n\n\n
  • \u3000\u3000\u91c7\u7528\u6297\u5e72\u6270\u6280\u672f<\/strong>\uff1a\u5229\u7528LoRa\u6280\u672f\u672c\u8eab\u7684\u6269\u9891\u3001CSS\u8c03\u5236\u3001\u524d\u5411\u7ea0\u9519\u7f16\u7801\u7b49\u6297\u5e72\u6270\u80fd\u529b\uff0c\u4ee5\u53ca\u81ea\u9002\u5e94\u901f\u7387\u8c03\u5236\u548c\u9891\u7387\u8df3\u53d8\u6280\u672f\u3002<\/li>\n\n\n\n
  • \u3000\u3000\u4f18\u5316\u5929\u7ebf\u8bbe\u8ba1<\/strong>\uff1a\u9009\u62e9\u5408\u9002\u7684\u5929\u7ebf\u7c7b\u578b\u548c\u4f4d\u7f6e\uff0c\u786e\u4fdd\u5929\u7ebf\u4e0e\u6a21\u5757\u4e4b\u95f4\u7684\u963b\u6297\u5339\u914d\u3002<\/li>\n\n\n\n
  • \u3000\u3000\u5408\u7406\u5e03\u5c40\u8282\u70b9<\/strong>\uff1a\u6839\u636eLoRa\u573a\u666f\u89c4\u5212LoRa\u7f51\u5173\u4e0e\u8282\u70b9\u7684\u4f4d\u7f6e\u548c\u6570\u91cf\uff0c\u786e\u4fdd\u4fe1\u53f7\u8986\u76d6\u5747\u5300\u3002<\/li>\n\n\n\n
  • \u3000\u3000\u7535\u6e90\u7ba1\u7406<\/strong>\uff1a\u9009\u62e9\u5408\u9002\u7684\u7535\u6e90\u7ba1\u7406\u6a21\u5f0f\uff0c\u6839\u636e\u5e94\u7528\u573a\u666f\u8c03\u6574\u529f\u8017\uff0c\u4ee5\u51cf\u5c11\u56e0\u529f\u8017\u8fc7\u9ad8\u5bfc\u81f4\u7684\u5e72\u6270\u3002<\/li>\n\n\n\n
  • \u3000\u3000\u4f7f\u7528\u81ea\u9002\u5e94\u6570\u636e\u901f\u7387\uff08ADR\uff09<\/strong> \uff1a\u901a\u8fc7\u5b9e\u9645\u6539\u53d8\u6570\u636e\u901f\u7387\u6765\u786e\u4fdd\u53ef\u9760\u7684\u6570\u636e\u4f20\u8f93\u548c\u6700\u4f73\u7684\u7f51\u7edc\u6027\u80fd\u3002<\/li>\n\n\n\n
  • \u3000\u3000\u907f\u514d\u4e0e\u5176\u4ed6\u7535\u78c1\u5e72\u6270\u6e90\u8fc7\u8fd1<\/strong>\uff1a\u4f8b\u5982\u9ad8\u538b\u7535\u7ebf\u3001\u7535\u78c1\u8bbe\u5907\u7b49\u3002<\/li>\n\n\n\n
  • \u3000\u3000\u4f7f\u7528\u7801\u9694\u79bb\u6280\u672f<\/strong>\uff1a\u901a\u8fc7\u4f7f\u7528\u552f\u4e00\u7684\u4fe1\u9053\u548c\u8bbe\u5907\u5730\u5740\uff0c\u5c06\u5404\u4e2a\u8bbe\u5907\u7684\u4fe1\u53f7\u5f7c\u6b64\u9694\u79bb\u5f00\u3002<\/li>\n\n\n\n
  • \u3000\u3000\u4f7f\u7528\u63a5\u6536\u5668\u7075\u654f\u5ea6\u6280\u672f<\/strong>\uff1a\u8c03\u6574\u63a5\u6536\u5668\u7684\u9608\u503c\uff0c\u4ee5\u6355\u6349\u66f4\u5f31\u7684\u4fe1\u53f7\u3002<\/li>\n\n\n\n
  • \u3000\u3000\u4f7f\u7528\u591a\u8def\u5f84\u4f20\u8f93\u6280\u672f<\/strong>\uff1a\u901a\u8fc7\u591a\u4e2a\u7f51\u5173\u5c06\u4fe1\u53f7\u5408\u5e76\uff0c\u63d0\u9ad8\u4fe1\u53f7\u8d28\u91cf\u548c\u7a33\u5b9a\u6027\u3002<\/li>\n\n\n\n
  • \u3000\u3000\u4f7f\u7528\u51b2\u7a81\u89e3\u7801\u7b97\u6cd5\uff08CIC\uff09<\/strong> \uff1a\u5728\u6570\u636e\u4f20\u8f93\u8fc7\u7a0b\u4e2d\uff0c\u5982\u679c\u51fa\u73b0\u6570\u636e\u5305\u51b2\u7a81\uff0c\u53ef\u4ee5\u4f7f\u7528\u51b2\u7a81\u89e3\u7801\u6280\u672f\u5206\u79bb\u51b2\u7a81\u89e3\u7801\u5404\u4e2aLoRa\u5305\u7684\u5185\u5bb9\u3002<\/li>\n\n\n\n
  • \u3000\u3000\u4f7f\u7528\u591a\u5740\u6280\u672f\uff08\u5982FDMA\uff09<\/strong> \uff1a\u5b9e\u73b0\u591a\u4e2a\u8bbe\u5907\u5171\u4eab\u540c\u4e00\u9891\u6bb5\uff0c\u4ece\u800c\u63d0\u9ad8\u9891\u8c31\u5229\u7528\u7387\u3002<\/li>\n\n\n\n
  • \u3000\u3000\u907f\u514d\u5728\u9ad8\u5c71\u533a\u4f7f\u7528LoRa\u6280\u672f<\/strong>\uff1a\u4ee5\u51cf\u5c11\u5916\u90e8\u5e72\u6270\u3002<\/li>\n<\/ul>\n\n\n\n

    \u3000\u3000\u56db\u3001 Doppler\u6548\u5e94\u5bf9LoRa\u901a\u4fe1\u9891\u7387\u53d8\u5316\u7684\u5f71\u54cd?<\/h2>\n\n\n\n

    \u3000\u3000Doppler\u6548\u5e94\u662f\u6307\u5f53\u4fe1\u53f7\u6e90\u6216\u63a5\u6536\u5668\u76f8\u5bf9\u79fb\u52a8\u65f6\uff0c\u63a5\u6536\u5230\u7684\u4fe1\u53f7\u9891\u7387\u53d1\u751f\u53d8\u5316\u7684\u73b0\u8c61\u3002\u8fd9\u4e00\u6548\u5e94\u5728LoRa\u901a\u4fe1\u4e2d\u4e5f\u4f1a\u4ea7\u751f\u5f71\u54cd\uff0c\u5c24\u5176\u662f\u5728\u79fb\u52a8\u573a\u666f\u4e2d\uff0c\u53ef\u80fd\u5bfc\u81f4\u9891\u7387\u504f\u79fb\uff0c\u4ece\u800c\u5bf9\u901a\u4fe1\u8d28\u91cf\u4ea7\u751f\u4e00\u5b9a\u7684\u5f71\u54cd\u3002<\/p>\n\n\n\n

    \u3000\u3000\u5728LoRa\u901a\u4fe1\u4e2d\uff0c\u5982\u679c\u53d1\u5c04\u7aef\u6216\u63a5\u6536\u7aef\u5904\u4e8e\u8fd0\u52a8\u72b6\u6001\uff0cDoppler\u6548\u5e94\u4f1a\u5bfc\u81f4\u63a5\u6536\u5230\u7684\u4fe1\u53f7\u9891\u7387\u504f\u79fb\u3002\u8fd9\u79cd\u9891\u7387\u504f\u79fb\u53d6\u51b3\u4e8e\u76f8\u5bf9\u8fd0\u52a8\u7684\u901f\u5ea6\u548c\u4fe1\u53f7\u7684\u539f\u59cb\u9891\u7387\u3002\u5bf9\u4e8eLoRa\u7cfb\u7edf\uff0c\u867d\u7136\u5176\u5de5\u4f5c\u9891\u7387\u8f83\u4f4e(\u901a\u5e38\u5728433 MHz\u3001868 MHz\u6216915 MHz\u7b49\u9891\u6bb5)\uff0c\u4f46\u5728\u9ad8\u901f\u79fb\u52a8\u573a\u666f\u4e2d\uff0cDoppler\u9891\u79fb\u4ecd\u53ef\u80fd\u5bf9\u4fe1\u53f7\u7684\u89e3\u8c03\u8fc7\u7a0b\u9020\u6210\u5e72\u6270\u3002<\/p>\n\n\n\n

    \u3000\u3000Doppler\u6548\u5e94\u5bf9LoRa\u901a\u4fe1\u7684\u5f71\u54cd\u4e3b\u8981\u8868\u73b0\u5728\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\u3002\u9996\u5148\uff0c\u9891\u7387\u504f\u79fb\u53ef\u80fd\u5bfc\u81f4\u63a5\u6536\u673a\u7684\u9891\u7387\u540c\u6b65\u56f0\u96be\u3002LoRa\u4fe1\u53f7\u7684\u89e3\u8c03\u4f9d\u8d56\u4e8e\u7cbe\u786e\u7684\u9891\u7387\u540c\u6b65\uff0c\u5982\u679c\u7531\u4e8eDoppler\u6548\u5e94\u5bfc\u81f4\u9891\u7387\u504f\u79fb\u8d85\u51fa\u63a5\u6536\u673a\u7684\u5bb9\u5fcd\u8303\u56f4\uff0c\u53ef\u80fd\u5bfc\u81f4\u89e3\u8c03\u8bef\u5dee\u589e\u52a0\uff0c\u751a\u81f3\u65e0\u6cd5\u6b63\u786e\u89e3\u7801\u4fe1\u53f7\u3002\u5176\u6b21\uff0c\u9891\u7387\u504f\u79fb\u8fd8\u53ef\u80fd\u5f71\u54cdLoRa\u7684\u6269\u9891\u6280\u672f\u6027\u80fd\u3002LoRa\u91c7\u7528Chirp Spread Spectrum(CSS)\u6280\u672f\uff0c\u8fd9\u79cd\u6280\u672f\u5bf9\u9891\u7387\u504f\u79fb\u5177\u6709\u4e00\u5b9a\u7684\u5bb9\u5fcd\u5ea6\uff0c\u4f46\u8fc7\u5927\u7684\u9891\u79fb\u53ef\u80fd\u5bfc\u81f4Chirp\u4fe1\u53f7\u7684\u5931\u914d\uff0c\u4ece\u800c\u964d\u4f4e\u89e3\u7801\u6210\u529f\u7387\u3002<\/p>\n\n\n\n

    \u3000\u3000\u5c3d\u7ba1\u5982\u6b64\uff0cLoRa\u7cfb\u7edf\u5177\u6709\u4e00\u5b9a\u7684\u6297Doppler\u6548\u5e94\u80fd\u529b\u3002\u5176\u6269\u9891\u6280\u672f\u548c\u8f83\u957f\u7684\u7b26\u53f7\u6301\u7eed\u65f6\u95f4\u4f7f\u5176\u5728\u4e00\u5b9a\u9891\u7387\u504f\u79fb\u8303\u56f4\u5185\u4ecd\u80fd\u4fdd\u6301\u8f83\u597d\u7684\u901a\u4fe1\u6027\u80fd\u3002\u8fd9\u79cd\u6297\u5e72\u6270\u80fd\u529b\u4f7f\u5f97LoRa\u5728\u4f4e\u901f\u79fb\u52a8\u573a\u666f\u4e2d\u4ecd\u80fd\u6709\u6548\u5de5\u4f5c\u3002\u7136\u800c\uff0c\u5728\u9ad8\u901f\u79fb\u52a8\u5e94\u7528\u4e2d(\u5982\u8f66\u8f86\u6216\u65e0\u4eba\u673a\u901a\u4fe1)\uff0cDoppler\u6548\u5e94\u53ef\u80fd\u5bf9\u7cfb\u7edf\u6027\u80fd\u4ea7\u751f\u66f4\u663e\u8457\u7684\u5f71\u54cd\u3002\u56e0\u6b64\uff0c\u5728\u8fd9\u4e9b\u5e94\u7528\u573a\u666f\u4e2d\uff0c\u53ef\u80fd\u9700\u8981\u901a\u8fc7\u8c03\u6574\u7cfb\u7edf\u53c2\u6570(\u5982\u9891\u504f\u8865\u507f)\u6216\u91c7\u7528\u4e13\u95e8\u7684\u4fe1\u53f7\u5904\u7406\u6280\u672f\u6765\u51cf\u8f7bDoppler\u6548\u5e94\u7684\u5f71\u54cd\uff0c\u4ee5\u786e\u4fddLoRa\u901a\u4fe1\u7684\u7a33\u5b9a\u6027\u548c\u53ef\u9760\u6027\u3002<\/p>\n\n\n\n

    \u3000\u3000\u4e94\u3001 LoRa\u4fe1\u53f7\u7684\u6269\u9891\u56e0\u5b50(SF)\u548c\u5e26\u5bbd(BW)\u5982\u4f55\u5f71\u54cd\u5176\u6297\u5e72\u6270\u80fd\u529b?<\/h2>\n\n\n\n

    \u3000\u3000LoRa\u4fe1\u53f7\u7684\u6269\u9891\u56e0\u5b50(SF)\u548c\u5e26\u5bbd(BW)\u5bf9\u5176\u6297\u5e72\u6270\u80fd\u529b\u548c\u4f20\u8f93\u901f\u7387\u6709\u663e\u8457\u5f71\u54cd\u3002\u6269\u9891\u56e0\u5b50(SF)\u662fLoRa\u8c03\u5236\u7684\u6838\u5fc3\u53c2\u6570\uff0c\u5b83\u901a\u8fc7\u5c061\u4f4d\u6570\u636e\u6269\u5c55\u4e3a\u591a\u4e2a\u4f4d\u8fdb\u884c\u4f20\u8f93\uff0c\u4ece\u800c\u63d0\u9ad8\u4fe1\u53f7\u7684\u6297\u5e72\u6270\u80fd\u529b\u548c\u63a5\u6536\u7075\u654f\u5ea6\u3002SF\u503c\u8d8a\u9ad8\uff0c\u6bcf\u4e2a\u4fe1\u606f\u4f4d\u6240\u9700\u7684\u7b26\u53f7\u6570\u8d8a\u591a\uff0c\u5bfc\u81f4\u4f20\u8f93\u901f\u7387\u964d\u4f4e\u3002\u4f8b\u5982\uff0c\u5f53SF\u4e3a6\u65f6\uff0c\u6570\u636e\u901f\u7387\u4e3a5.5 kbps;\u800c\u5f53SF\u4e3a12\u65f6\uff0c\u6570\u636e\u901f\u7387\u4e3a3.76828 kbps\u3002<\/p>\n\n\n\n

    \u3000\u3000\u53e6\u4e00\u65b9\u9762\uff0c\u5e26\u5bbd(BW)\u51b3\u5b9a\u4e86\u4fe1\u53f7\u7684\u9891\u7387\u5bbd\u5ea6\u3002\u8f83\u5c0f\u7684\u5e26\u5bbd\u53ef\u4ee5\u63d0\u9ad8\u63a5\u6536\u7075\u654f\u5ea6\uff0c\u4f46\u4f1a\u964d\u4f4e\u4f20\u8f93\u901f\u7387\u3002\u5e26\u5bbd\u8d8a\u5c0f\uff0c\u63a5\u6536\u7075\u654f\u5ea6\u8d8a\u9ad8\uff0c\u4f46\u4f20\u8f93\u901f\u7387\u4f1a\u964d\u4f4e\u3002\u56e0\u6b64\uff0c\u5728\u9009\u62e9SF\u548cBW\u65f6\u9700\u8981\u5e73\u8861\u8fd9\u4e24\u8005\u4e4b\u95f4\u7684\u5173\u7cfb\uff0c\u4ee5\u8fbe\u5230\u6700\u4f73\u7684\u901a\u4fe1\u6548\u679c\u3002<\/p>\n\n\n\n

    \u3000\u3000\u5728\u9ad8\u5e72\u6270\u73af\u5883\u4e2d\uff0c\u9009\u62e9\u5408\u9002\u7684SF\u503c\u5c24\u4e3a\u91cd\u8981\u3002\u8f83\u5c0f\u7684SF\u503c(\u5982SF7)\u53ef\u4ee5\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u901f\u7387\uff0c\u4f46\u4f1a\u7f29\u77ed\u4fe1\u53f7\u8303\u56f4\u5e76\u589e\u52a0\u5bf9\u566a\u58f0\u548c\u5e72\u6270\u7684\u654f\u611f\u6027\u3002\u8f83\u5927\u7684SF\u503c(\u5982SF12)\u867d\u7136\u4f1a\u964d\u4f4e\u6570\u636e\u4f20\u8f93\u901f\u7387\uff0c\u4f46\u53ef\u4ee5\u63d0\u4f9b\u66f4\u8fdc\u7684\u4fe1\u53f7\u8303\u56f4\u548c\u66f4\u597d\u7684\u4fe1\u53f7\u8d28\u91cf\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

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