{"id":99435,"date":"2024-11-21T17:05:00","date_gmt":"2024-11-21T09:05:00","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=99435"},"modified":"2024-11-21T17:05:04","modified_gmt":"2024-11-21T09:05:04","slug":"lkycsypm","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/99435.html","title":{"rendered":"LoRa\u53ef\u4ee5\u4f20\u8f93\u97f3\u9891\u5417\uff1f"},"content":{"rendered":"\n<p>\u3000\u3000<strong>LoRa\u6280\u672f<\/strong>\u786e\u5b9e\u53ef\u4ee5\u4f20\u8f93\u97f3\u9891\u4fe1\u53f7\u3002\u4ee5\u4e0b\u662f\u8be6\u7ec6\u5206\u6790\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>LoRa\u65e0\u7ebf\u97f3\u9891\u6a21\u7ec4<\/strong>\uff1aLoRa\u65e0\u7ebf\u97f3\u9891\u6a21\u7ec4WS8302DLS\u652f\u6301\u901a\u8fc7I2S\u6570\u5b57\u97f3\u9891\u6216\u6a21\u62df\u97f3\u9891\u63a5\u53e3\u4f20\u8f93\u8bed\u97f3\u4fe1\u53f7\uff0c\u5e76\u4e14\u652f\u6301PTT\u529f\u80fd\u548c\u97f3\u9891\u7f16\u7801\u901f\u7387\u7684\u914d\u7f6e\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>LoRa\u8bed\u97f3\u4f20\u8f93\u65b9\u6848VLoRa<\/strong>\uff1aVLoRa\u4f7f\u7528Codec 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LoRa\u7cfb\u7edf\uff0c\u7528\u4e8e\u7d27\u6025\u670d\u52a1\u7684\u8bed\u97f3\u901a\u4fe1\uff0c\u8be5\u7cfb\u7edf\u5305\u62ecWiFi\u5230LoRa\u7f51\u5173\u548cLoRa\u5230\u536b\u661f\u7f51\u5173\uff0c\u5c55\u793a\u4e86LoRa\u5728\u8bed\u97f3\u4f20\u8f93\u4e2d\u7684\u5e94\u7528\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>LoRa\u6570\u5b57\u8bed\u97f3\u6a21\u5757<\/strong>\uff1aLoRa\u6570\u5b57\u8bed\u97f3\u6a21\u5757\u652f\u6301\u5168\u53cc\u5de5\u3001\u591a\u65b9\u901a\u8bdd\uff0c\u5e76\u4e14\u9884\u7559\u4f18\u5148\u4f4d\uff0c\u9002\u7528\u4e8e\u5b9e\u65f6\u6027\u8981\u6c42\u8f83\u9ad8\u7684\u97f3\u9891\u5e94\u7528\u573a\u666f\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000LoRa\u6280\u672f\u53ef\u4ee5\u4f20\u8f93\u97f3\u9891\u4fe1\u53f7\uff0c\u800c\u4e14\u5728\u591a\u4e2a\u5e94\u7528\u573a\u666f\u4e2d\u5df2\u7ecf\u5f97\u5230\u4e86\u5b9e\u9645\u5e94\u7528\u548c\u9a8c\u8bc1\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e00\u3001 VLoRa\u6280\u672f\u5728\u5e94\u6025\u901a\u4fe1\u4e2d\u7684\u5e94\u7528<\/h2>\n\n\n\n<p>\u3000\u3000VLoRa\u6280\u672f\u5728\u5e94\u6025\u901a\u4fe1\u4e2d\u7684\u5e94\u7528\u6848\u4f8b\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u7d27\u6025\u901a\u4fe1\u7cfb\u7edf\u7684\u5907\u4efd\u65b9\u6848<\/strong>\uff1aVLoRa\u7cfb\u7edf\u88ab\u8bbe\u8ba1\u4e3a\u4e00\u4e2a\u53ef\u9002\u5e94\u7684\u5907\u4efd\u7cfb\u7edf\uff0c\u7528\u4e8e\u5728\u536b\u661f\u4fe1\u53f7\u65e0\u6cd5\u8986\u76d6\u6216\u5176\u5b83\u901a\u4fe1\u7cfb\u7edf\u4e0d\u53ef\u9760\u3001\u4e0d\u5b58\u5728\u6216\u5df2\u5931\u6548\u7684\u533a\u57df\u8fdb\u884c\u7d27\u6025\u901a\u4fe1\u3002\u8fd9\u79cd\u7cfb\u7edf\u53ef\u4ee5\u5728\u9700\u8981\u65f6\u63d0\u4f9b\u8bed\u97f3\u4f20\u8f93\u670d\u52a1\uff0c\u4ece\u800c\u786e\u4fdd\u5728\u707e\u96be\u53d1\u751f\u65f6\u4ecd\u80fd\u4fdd\u6301\u901a\u4fe1\u7545\u901a\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u57fa\u4e8eLoRa\u7684\u6551\u63f4\u4fe1\u4f7f\u7cfb\u7edf<\/strong>\uff1aBitStream-The 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class=\"wp-block-heading\">\u3000\u3000\u4e8c\u3001 LoRa\u6280\u672f\u5728\u957f\u8ddd\u79bb\u8bed\u97f3\u4f20\u8f93\u4e2d\u7684\u4f4e\u6570\u636e\u901f\u7387\u4f18\u5316?<\/h2>\n\n\n\n<p>\u3000\u3000\u4e3a\u4e86\u5b9e\u73b0LoRa\u6280\u672f\u5728\u957f\u8ddd\u79bb\u8bed\u97f3\u4f20\u8f93\u4e2d\u7684\u4f4e\u6570\u636e\u901f\u7387\u4f18\u5316\uff0c\u53ef\u4ee5\u91c7\u7528\u4ee5\u4e0b\u51e0\u79cd\u65b9\u6cd5\uff1a<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u8bed\u97f3\u7f16\u7801\u6280\u672f<\/strong>\uff1a\u901a\u8fc7\u4f7f\u7528\u7ebf\u6027\u9884\u6d4b\u7f16\u7801(LPC)\u6a21\u578b\u5bf9\u8bed\u97f3\u4fe1\u53f7\u8fdb\u884c\u5206\u6790\u548c\u5408\u6210\uff0c\u5c06\u8bed\u97f3\u4fe1\u53f7\u5206\u89e3\u4e3a\u6709\u58f0\u5e27\u548c\u65e0\u58f0\u5e27\uff0c\u5e76\u5bf9\u5b83\u4eec\u5206\u522b\u8fdb\u884c\u4f18\u5316\u4ee5\u51cf\u5c11\u6570\u636e\u901f\u7387\u3002\u4f8b\u5982\uff0c\u5c06\u8bed\u97f3\u4fe1\u53f7\u5206\u89e3\u4e3a\u4e3b\u5e27\u548c\u5b50\u5e27\uff0c\u9009\u62e9\u5177\u6709\u6700\u9ad8\u80fd\u91cf\u7684\u5b50\u5e27\uff0c\u5e76\u4f7f\u7528\u8109\u51b2\u7f16\u7801\u548c\u91cf\u5316\u6765\u8868\u793a\u8fd9\u4e9b\u5b50\u5e27\u3002\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u5c06\u6570\u636e\u901f\u7387\u964d\u4f4e\u81f37.5 kbps\u4ee5\u4e0b\uff0c\u4ece\u800c\u9002\u5e94LoRa\u6a21\u5757\u7684\u6570\u636e\u4f20\u8f93\u80fd\u529b\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u52a0\u5bc6\u89e3\u5bc6\u65b9\u6cd5<\/strong>\uff1a\u4e3a\u4e86\u786e\u4fdd\u6d88\u606f\u9690\u79c1\u5e76\u9632\u6b62\u672a\u7ecf\u6388\u6743\u7684\u8bbf\u95ee\uff0c\u5f00\u53d1\u4e86\u4e00\u79cd\u52a0\u5bc6\u89e3\u5bc6\u65b9\u6cd5\u3002\u751f\u6210\u7684\u8f93\u51fa\u4f4d\u88ab\u5206\u4e3a128\u4f4d\u7684\u5305\uff0c\u5e76\u4f7f\u7528XOR\u64cd\u4f5c\u52a0\u5bc6\uff0c\u63a5\u6536\u65b9\u4f7f\u7528\u76f8\u540c\u7684\u5bc6\u94a5\u8fdb\u884c\u89e3\u5bc6\uff0c\u6062\u590d\u539f\u59cb\u6d88\u606f\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>Chirp\u6269\u9891\u8c31\uff08CSS\uff09\u6280\u672f<\/strong>\uff1a\u5229\u7528CSS\u6280\u672f\u901a\u8fc7\u7ebf\u6027\u9891\u7387\u8c03\u5236\u7684\u8109\u51b2\u7f16\u7801\uff0c\u5b9e\u73b0\u6700\u5927\u97f3\u8d28\u7684\u8fdc\u8ddd\u79bb\u901a\u4fe1\u3002CSS\u7cfb\u7edf\u5177\u6709\u51fa\u8272\u7684\u8303\u56f4\u4e0e\u6570\u636e\u901f\u7387\u53ef\u6269\u5c55\u6027\u3001\u4f4e\u529f\u8017\u548c\u4f4e\u5ef6\u8fdf\uff0c\u7279\u522b\u9002\u5408\u957f\u8ddd\u79bb\u901a\u4fe1\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>Low Data Rate Optimization\uff08LDRO\uff09\u529f\u80fd<\/strong>\uff1a\u5f53\u5355\u4e2a\u7b26\u53f7\u4f20\u8f93\u65f6\u95f4\u8d85\u8fc716\u6beb\u79d2\u65f6\uff0c\u5fc5\u987b\u4f7f\u80fdLDRO\u4f4d\uff0c\u4ee5\u589e\u5f3aLoRa\u8fde\u63a5\u5728\u4f4e\u901f\u7387\u6761\u4ef6\u4e0b\u7684\u9c81\u68d2\u6027\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e09\u3001 Voice Over LoRa\u2122\u7cfb\u7edf\u7684\u67b6\u6784\u548c\u5de5\u4f5c\u539f\u7406<\/h2>\n\n\n\n<p>\u3000\u3000Voice Over LoRa\u2122\u7cfb\u7edf\u662f\u4e00\u79cd\u5229\u7528LoRa\u6280\u672f\u8fdb\u884c\u8bed\u97f3\u4f20\u8f93\u7684\u7cfb\u7edf\uff0c\u4e3b\u8981\u7528\u4e8e\u7d27\u6025\u670d\u52a1\u7b49\u4f4e\u6bd4\u7279\u7387\u8bed\u97f3\u901a\u4fe1\u573a\u666f\u3002\u5176\u67b6\u6784\u548c\u5de5\u4f5c\u539f\u7406\u5982\u4e0b\uff1a<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u521d\u59cb\u5316\u8fc7\u7a0b<\/strong>\uff1a\u8bed\u97f3\u6d41\u7684\u5f00\u59cb\u7531\u4e00\u4e2a\u521d\u59cb\u5316\u5305\u89e6\u53d1\uff0c\u8be5\u5305\u5305\u542b3\u5b57\u8282\u7684\u6709\u6548\u8d1f\u8f7d\u5927\u5c0f\u548c\u5e8f\u5217\u53f7\u4e3a0\u7684\u4fe1\u606f\u3002\u6b64\u5916\uff0c\u5b83\u8fd8\u6307\u5b9a\u4e86\u7528\u4e8e\u7f16\u7801\u97f3\u9891\u6570\u636e\u7684\u7f16\u89e3\u7801\u5668(\u5982G.711\u3001Codec 2\u6216G.729)\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u6570\u636e\u4f20\u8f93<\/strong>\uff1a\u8bed\u97f3\u6570\u636e\u901a\u8fc7\u4e00\u7cfb\u5217\u79f0\u4e3aStream 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