{"id":244,"date":"2017-12-10T14:24:19","date_gmt":"2017-12-10T06:24:19","guid":{"rendered":"http:\/\/www.growlove.cn\/blog\/?p=244"},"modified":"2017-12-10T14:24:19","modified_gmt":"2017-12-10T06:24:19","slug":"%e6%b5%85%e8%b0%88nb-iot%e6%8a%80%e6%9c%af%ef%bc%88%e4%b8%8b%e7%af%87%ef%bc%89","status":"publish","type":"post","link":"https:\/\/growlove.cn\/index.php\/2017\/12\/10\/%e6%b5%85%e8%b0%88nb-iot%e6%8a%80%e6%9c%af%ef%bc%88%e4%b8%8b%e7%af%87%ef%bc%89\/","title":{"rendered":"\u6d45\u8c08NB-IOT\u6280\u672f\uff08\u4e0b\u7bc7\uff09"},"content":{"rendered":"

\u662f\u8c01\u8d4b\u4e88\u4e86\u7269\u4f53\u4ee5\u5927\u8111\u3002\u611f\u77e5\uff0c\u795e\u7ecf\u3001\u667a\u6167\u7b49\u3002
\n\u60f3\u5f04\u6e05\u8fd9\u4e2a\u95ee\u9898\u3002\u6211\u4eec\u5f97\u5148\u4ece\u751f\u6d3b\u4e2d\u7b80\u5355\u7684\u4e8b\u60c5\u8bf4\u8d77\u3002
\n\u7269\u4f53\u7684\u7406\u6027-\u5373\u7269\u7406\u5f00\u59cb\u3002<\/p>\n


\n\u4eba\u4eba\u90fd\u60f3\u628a\u7269\u4f53\uff0c\u901a\u4fe1\u201c\u795e\u79d8\u5316\u201d\u201c\u667a\u80fd\u5316\u201d\u8fd9\u6837\u5c31\u80fd\u5efa\u7acb\u8d77\u6280\u672f\u751a\u81f3\u884c\u4e1a\u58c1\u5792\uff0c\u8ba9\u81ea\u5df1\u72ec\u4eab\u884c\u4e1a\u539a\u5229\u3002\u800c\u6211\u60f3\u7684\u662f\uff0c\u628a\u6240\u6709\u201c\u667a\u80fd\u201d\u7b80\u5355\u5316\uff0c\u201c\u795e\u5316\u201d\u5e73\u6c11\u5316\u3002\u77e5\u8bc6\u662f\u5171\u4eab\u7684\uff0c\u4f60\u53bb\u5b66\u4e60\uff0c\u5b83\u4f1a\u7737\u987e\u4f60\uff0c\u503e\u5176\u6240\u6709\u3002<\/p>\n

\u7172\u6c34\u58f6\u7b49\u5230\u6c34\u5f00\u4e86\uff0c\u5c31\u4f1a\u81ea\u52a8\u8df3\u95f8\u3002\u8fd9\u662f\u7531\u4e8e\u70ed\u80c0\u51b7\u7f29\u3002\u7531\u4e8e\u4f38\u7f29\u54c1\u7684\u4e24\u8fb9\u7531\u4e0d\u540c\u7684\u6750\u8d28\u6784\u6210\uff0c\u6240\u4ee5\u5f2f\u66f2\u5230\u4e00\u5b9a\u6df1\u5ea6\uff08100\u5ea6\uff09\u5c31\u4f1a\u89e6\u53d1\u5f00\u5173\u3002\u7b49\u5230\u6e29\u5ea6\u964d\u4e0b\u6765\u4e4b\u540e\uff0c\u5c31\u4f1a\u6062\u590d\u5230\u4e4b\u524d\u7684\u8054\u901a\u72b6\u6001\u3002<\/p>\n

\u7531\u4e8e\u7269\u4f53\u7684\u7269\u7406\u5c5e\u6027\u5404\u4e0d\u76f8\u540c\uff0c\u5c31\u4f1a\u6709\u201c\u53d8\u5316\u201d\u3002\u5373\u201c\u4e00\u8fb9\u4ff1\u53d8\u201d\uff0c\u6e29\u5ea6\u53d8\u5316\uff0c\u6e29\u5ea6\u8ba1\u7684\u9ad8\u5ea6\u4f1a\u53d8\u5316\u3002\u5149\u7ebf\u7684\u5f3a\u5f31\uff0c\u4f1a\u5bfc\u81f4\u611f\u5149\u6750\u8d28\u81ea\u8eab\u963b\u503c\u7684\u53d8\u5316\uff0c\u5373\u901a\u7535\u7535\u6d41\u7684\u53d8\u5316\u3002\u7b49\u7b49\u3002<\/p>\n

\u6b63\u5f0f\u7531\u4e8e\u6709\u4e86\u8fd9\u4e9b\uff0c\u201c\u4e00\u8fb9\u4ff1\u53d8\u201d\u7684\u7269\u7406\u751a\u81f3\u5316\u5b66\u5c5e\u6027\u3002\u4e07\u7269\u901a\u4fe1\uff0c\u7269\u7269\u4e92\u8054\u7684\u6982\u5ff5\u5e94\u8fd0\u800c\u751f\u3002\u56e0\u4e3a\u201c\u4e00\u53d8\u4ff1\u53d8\u201d\u662f\u901a\u4fe1\u7684\u672c\u8d28\uff0c\u8fd9\u662f\u6211\u5bf9\u901a\u4fe1\u7684\u7406\u89e3\u3002<\/p>\n

\u4e5f\u6b63\u662f\u7531\u4e8e\u7269\u7406\u5b66\u5728\u91cf\u5b50\u7684\u7814\u7a76\u4e2d\u53d6\u5f97\u4e86\u7a81\u7834\uff0c\u6240\u4ee5\u91cf\u5b50\u901a\u4fe1\u4e0e\u91cf\u5b50\u8ba1\u7b97\u673a\u4e5f\u76f8\u7ee7\u95ee\u4e16\u3002\u5176\u5b9e\u91cf\u5b50\u901a\u4fe1\u7684\u539f\u7406\u4e5f\u5f88\u7b80\u5355\u3002\u5c31\u662f\u521a\u6240\u8bf4\u7684\u201c\u4e00\u53d8\u4ff1\u53d8\u201d—\u91cf\u5b50\u7ea0\u7f20\u7406\u8bba\u3002
\n\u5177\u6709\u7ea0\u7f20\u6001\u7684\u4e24\u4e2a\u7c92\u5b50\u65e0\u8bba\u76f8\u8ddd\u591a\u8fdc\uff0c\u53ea\u8981\u4e00\u4e2a\u53d1\u751f\u53d8\u5316\uff0c\u53e6\u5916\u4e00\u4e2a\u4e5f\u4f1a\u77ac\u95f4\u53d1\u751f\u53d8\u5316\uff0c\u5229\u7528\u8fd9\u4e2a\u7279\u6027\u5b9e\u73b0\u5149\u91cf\u5b50\u901a\u4fe1\u3002<\/p>\n

\u5047\u5982\u6211\u4eec\u4e8b\u5148\u7ea6\u5b9a\u597d\u3002\u7528\u20180001\u2019\u4ee3\u8868\u2018\u4f60\u597d\u2019\u75280010\u4ee3\u8868\u201c\u6211\u559c\u6b22\u4f60\u201d\uff08\u5373\u7b80\u5355\u7684\u4f20\u8f93\u7f16\u7801\u534f\u8bae\uff09\u3002\u7136\u540e\u6211\u518d\u60e0\u5dde\u4e0e\u5170\u5dde\u5efa\u7acb4\u5bf9\u7ea0\u7f20\u6001\u7c92\u5b50\u3002\u5b9a\u4e49\u521d\u59cb\u72b6\u6001\u4e3a0000\uff08\u5373\u4e4b\u540e\u53ea\u8981\u53d8\u5316\u5c31\u5224\u5b9a\u4e3a1\uff09.\u5982\u679c\u6211\u60f3\u5bf9\u5170\u5dde\u7684\u67d0\u67d0\u67d0\u8bf4\u4f60\u597d\u3002\u5c31\u628a\u6700\u540e\u4e00\u5bf9\u7ea0\u7f20\u6001\u7c92\u5b50\u7684\u72b6\u6001\u72b6\u6001\u53d8\u4e00\u4e0b\u3002\u90a3\u4e48\u5170\u5dde\u7684\u67d0\u67d0\u67d0\u4e5f\u4f1a\u770b\u5230\uff0c\u5979\u7684\u7ea0\u7f20\u6001\u7c92\u5b50\u4e5f\u53d8\u4e3a\u4e860001.\u5982\u679c\u60f3\u8981\u4f20\u8f93\u66f4\u591a\u7684\u4fe1\u606f\uff0c\u5c31\u7528\u66f4\u591a\u7684\u7f16\u7801ok\u4e86\u3002\u5305\u62ec\u56fe\u50cf\uff0c\u89c6\u5c4f\uff0c\u90fd\u662f0101\u7684\u7f16\u7801\u3002\u8fd9\u4e5f\u5c31\u662f\u91cf\u5b50\u901a\u4fe1\u6700\u524d\u7ebf\u7684\u539f\u7406\u4e86\u3002\u4e0d\u4ec5\u91cf\u5b50\u901a\u4fe1\uff0c\u6240\u6709\u7684\u901a\u4fe1\u90fd\u662f\u8fd9\u6837\u3002\u6ca1\u9519\uff0c\u6240\u6709\uff01<\/p>\n

\"\"\uff08\u753b\u7684\u96be\u770b\uff0c\u5ffd\u7565\u5ffd\u7565….\uff09
\n\u4e3a\u4e86\u4fdd\u8bc1\u901a\u4fe1\u670d\u52a1\u8d28\u91cf\uff0c\u5c31\u4f1a\u6709\u4ec0\u4e48\u539f\u7801\uff0c\u8865\u7801\uff0c\u53cd\u7801\u3001\u66fc\u5f7b\u65af\u7279\u7f16\u7801(Manchester Encoding)\u7b49\u7b49\u7b49\u7b49\u3002<\/p>\n

\u4e86\u89e3\u4e86\u8fd9\u4e9b\uff0c\u624d\u597d\u8fdb\u5165\u4eca\u5929\u7684\u6700\u5e95\u5c42–\u611f\u77e5\u5c42\uff08\u4f20\u611f\u5668\u5c42\uff09\u3002<\/p>\n

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\n\u4ee5\u8d85\u58f0\u6d4b\u8ddd\u4f20\u611f\u5668\u4e3a\u4f8b\uff08\u56e0\u4e3a\u5927\u5b66\u505a\u8fc7\u8fd9\u4e2a\u9879\u76ee\uff09\uff0c\u60f3\u8981\u5b9e\u73b0\u6d4b\u8ddd\u529f\u80fd\u3002\u5c31\u9700\u8981\u4e00\u5bf9\u8d85\u58f0\u6d4b\u8ddd\u4f20\u611f\u5668\uff0c\u4e00\u4e2a\u8d1f\u8d23\u53d1\u9001\uff08\u558a\uff09\uff0c\u4e00\u4e2a\u8d1f\u8d23\u63a5\u6536\uff08\u542c\uff09\uff0c\u4e2d\u95f4\u7684\u65f6\u95f4\u4e3aT\u300215\u5ea6\u4e00\u4e2a\u5927\u6c14\u538b\u4e0b\uff0c\u58f0\u97f3\u5728\u7a7a\u6c14\u4e2d\u7684\u4f20\u64ad\u901f\u5ea6340m\/s.
\n\u6240\u4ee5\u5927\u5bb6\u90fd\u4f1a\u7b97\uff0c\u8ddd\u79bbS=V*T\u3002\uff08\u5b9e\u9645\u8ddd\u79bbS\/2\uff09V\u662f\u77e5\u9053\u7684\uff0c\u4e00\u4e2a\u5e38\u91cf\u5427\u3002T\u662f\u5934\u901a\u8fc7\u4f20\u611f\u5668\u83b7\u53d6\u7684\u3002\u662f\u4e0d\u662f\u611f\u89c9\u5230\u667a\u80fd\uff0c\u5176\u5b9e\u4e0d\u7136\u3002\u56e0\u4e3a\u5728MCU\u91cc\u6709\u65f6\u949f\u7cfb\u7edf\uff0c\u5b83\u5c06\u201c\u558a\u201d\u7684\u6307\u4ee4\u53d1\u9001\u7ed9\u4f20\u611f\u5668\u4e4b\u540e\uff0c\u201c\u542c\u201d\u7684\u4f20\u611f\u5668\u4e00\u76f4\u5728\u76d1\u542c\u72b6\u6001\uff0c\u63a5\u6536\u53cd\u5c04\u56de\u6765\u7684\u8d85\u58f0\u6ce2\u3002\u4ec0\u4e48\u662f\u76d1\u542c\u72b6\u6001\uff0c\u5c31\u662f\u901a\u4e0a\u7535\u3002\u5982\u679c\u6709\u8d85\u58f0\u6ce2\uff0c\u90a3\u4e48\u8fd9\u4e2a\u4f20\u611f\u5668\u5431\u58f0\u7684\u963b\u503c\u4f1a\u6709\u6240\u53d8\u5316\uff0c\u7ee7\u800c\u4ea7\u751f\u4e86\u7535\u6d41\u7684\u53d8\u5316\u3002\u4e00\u201c\u53d8\u201d\uff0cMCU\u5c31\u4f1a\u4ea7\u751f\u72b6\u6001\u53d8\u5316\uff0c\u4eba\u6c11\u4e60\u60ef\u53eb\u2018\u8ba1\u7b97\u2019\u51fa\u65f6\u95f4S\u3002\u65f6\u949f\u7cfb\u7edf\u662f\u600e\u6837\u7684\u5462\uff0c\u4ed6\u662f\u56fa\u5b9a\u53d1\u9001\u77e9\u5f62\u6ce2\u3002\u6bd4\u5982\uff0c\u5b9a\u4e49\u4e00\u4e2a\u6ce2\u4e3a1ms\uff08\u8fd9\u4e2a\u662f\u4eba\u7ed9\u5b83\u5b9a\u4e49\u7684\uff09\uff0c\u90a3\u4e48\u521a\u624d\u7ecf\u5386\u4e86\u591a\u5c11\u4e2a\u6ce2\uff0c\u5c31\u4f1a\u7b97\u51fa\u65f6\u95f4T\u5f53\u7136\u4e86\uff0c\u6240\u6709\u7684\u4f20\u611f\u5668\u90fd\u662f\u8fd9\u6837\u5de5\u4f5c\u7684\uff0c\u4e0d\u540c\u7684\u662f\u7b97\u6cd5\u4e0d\u540c\u800c\u5df2\u3002\u4e5f\u5c31\u662f\u4eba\u7ed9\u5b83\u7684\u201c\u5e38\u91cf\u201d\u201c\u516c\u5f0f\u201d\uff08\u601d\u60f3\uff09\u4e0d\u540c\u800c\u5df2\u3002<\/p>\n

NB-IOT\u5c31\u662f\u4e07\u7269\u4e92\u8054\u7684\u7b2c\u4e00\u6b65\uff0c\u611f\u77e5\u5c42\u534f\u8bae\u3002<\/p>\n

NB-IOT\u5373\u7a84\u5e26\u7269\u8054\u7f51\u3002\u5e26\u5bbd\u4e3a200kHZ\uff08\u7a84\u5e26\uff09\u3002\u5b83\u51e0\u4e4e\u6ca1\u6709\u4ec0\u4e48\u4f18\u70b9\u3002\u552f\u4e00\u7684\u4e24\u4e2a\u4f18\u70b9\u786e\u5b9e\u81f4\u547d\u7684\u30021.\u4f4e\u529f\u8017\u4f4e\u6210\u672c\u30022\u9ad8\u589e\u76ca\u9ad8\u8986\u76d6\u3002
\n\u5176\u4ed6\u4ec0\u4e48\u65f6\u5ef6\uff0c\u8bed\u97f3\u7b49\u5f53\u4e0b\u6d41\u884c\u7684\u4e1a\u52a1\uff0c\u90fd\u662f\u4e0d\u652f\u6301\u7684\u3002\u4f46\u5b83\u4e3a\u4ec0\u4e48\u8fd8\u8fd9\u4e48\u706b\uff0c\u56e0\u4e3a\u5728\u611f\u77e5\u5c42\uff0c\u4e0d\u9700\u8981\u3002200KHZ\u7684\u5e26\u5bbd\u5c31\u8db3\u591f\u4e86\u3002<\/p>\n

\u7531\u4e8eNB-IOT\u8fd9\u4e9b\u7279\u6027\u3002\u4e00\u4e9b\u5b9e\u65f6\u6027\u9ad8\u5fb7\u5e94\u7528\u4e5f\u4fbf\u6ee1\u8db3\u4e0d\u4e86\u3002\u5982\u8f66\u8054\u7f51\u7b49\u7b49\u3002\u65f6\u5ef6<1ms\uff0c\u4fbf\u9700\u8981eMTC\uff08\u7269\u8054\u7f51\uff095G\u53bb\u5b9e\u73b0<\/p>\n

\"\"\uff08\u7167\u7247\u6765\u6e90\uff1a\u817e\u535a\u54a8\u8be2\uff09<\/p>\n

NB-IOT\u4e0e\u73b0\u67094G\u6216\u80055G\u7684\u7cfb\u7edf\u5efa\u6784\u4e0e\u7ec4\u7f51\u65b9\u5f0f\u57fa\u4e8e\u7269\u8054\u7f51\u5e73\u53f0\u3002\u4e0e\u4f20\u7edf\u610f\u4e49\u4e0d\u540c\u7684\u662f\uff0c\u53d8\u5c31\u662f\u7269\u8054\u7f51\u5e73\u53f0\u3002<\/p>\n

\u56e0\u4e3a\u611f\u77e5\u5c42\u5229\u7528NB-IOT\u6a21\u7ec4-\u5373\u4f20\u611f\u5668\u89e3\u51b3\u4e86\u3002\u90a3\u4e48\u5b83\u7684\u795e\u7ecf\u7f51\u7edc\uff0c\u4e5f\u5c31\u662f\u7ec4\u7f51\u600e\u6837\u624d\u80fd\u6ee1\u8db3\u5404\u9879\u201c\u611f\u5b98\u201d\u6240\u9700\u3002\u4e0b\u56fe\u662f\u67d0\u4e00\u573a\u666f\u7684\u201c\u795e\u7ecf\u7f51\u7edc\u201d\uff08\u6b64\u5904\u975e\u4eba\u5de5\u667a\u80fd\u6df1\u5ea6\u5b66\u4e60\u7684\u795e\u7ecf\u7f51\u7edc\u7b97\u6cd5\uff09<\/p>\n

\"\"\uff08\u7167\u7247\u6765\u6e90\uff1a\u817e\u535a\u54a8\u8be2\uff09<\/p>\n

\u7531\u4e8eNB-IOT\u5982\u6b64\u9002\u5408\u8fd0\u8425\u5546\uff0c\u4e5f\u662f\u591a\u4e86\u4e00\u4e2a\u76c8\u5229\u7684\u673a\u4f1a\uff0c\u6240\u4ee5\u4e09\u5927\u8fd0\u8425\u5546\u79ef\u6781\u90e8\u7f72NB-IOT\u7f51\u7edc\uff0c\uff084.5G\u7f51\u7edc\uff09\u8fce\u63a55G\u7684\u5230\u6765<\/p>\n

\"\"\uff08\u7167\u7247\u6765\u6e90\uff1a\u817e\u535a\u54a8\u8be2\uff09<\/p>\n

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