{"id":237,"date":"2018-10-31T16:30:15","date_gmt":"2018-10-31T08:30:15","guid":{"rendered":"http:\/\/www.tianwang.com\/?p=237"},"modified":"2021-12-02T14:33:55","modified_gmt":"2021-12-02T06:33:55","slug":"%e6%9c%80%e5%85%a8%e9%9d%a2%e7%9a%84%e6%99%ba%e8%83%bd%e9%94%81%e9%a2%86%e5%9f%9f%e5%b8%b8%e8%a7%81%e7%9a%84%e6%97%a0%e7%ba%bf%e4%bc%a0%e8%be%93%e5%8d%8f%e8%ae%ae%e7%b1%bb%e5%9e%8b","status":"publish","type":"post","link":"https:\/\/www.tianwang.com\/?p=237","title":{"rendered":"\u6700\u5168\u9762\u7684\u667a\u80fd\u9501\u9886\u57df\u5e38\u89c1\u7684\u65e0\u7ebf\u4f20\u8f93\u534f\u8bae\u7c7b\u578b"},"content":{"rendered":"

\u201c\u7269\u8054\u7f51\u201d\u6982\u5ff5\u57281999\u5e74\u7f8e\u56fd\u9ebb\u7701\u7406\u5de5\u5b66\u9662\u9996\u6b21\u88ab\u63d0\u51fa\uff0c\u72ed\u4e49\u7684\u7269\u8054\u7f51\u6307\u7684\u662f\u201c\u7269\u2014\u7269\u76f8\u8fde\u7684\u4e92\u8054\u7f51\u201d\uff0c\u8fd9\u91cc\u76f8\u8fde\u7684\u4e3b\u4f53\u65e2\u5305\u62ec\u7269\u54c1\u5230\u7269\u54c1\uff0c\u4e5f\u5305\u62ec\u7269\u54c1\u5230\u8bc6\u522b\u7ba1\u7406\u8bbe\u5907\u3002<\/p>\n

\u5e7f\u4e49\u7684\u7269\u8054\u7f51\u6307\u7684\u662f\u4fe1\u606f\u7a7a\u95f4\u548c\u7269\u7406\u7a7a\u95f4\u7684\u878d\u5408\uff0c\u4e5f\u5c31\u662f\u865a\u62df\u4e0e\u73b0\u5b9e\u7684\u878d\u5408\uff0c\u628a\u6240\u6709\u7684\u7269\u4f53\u548c\u4e8b\u4ef6\u6570\u5b57\u5316\u3001\u7f51\u7edc\u5316\uff0c\u5728\u4eba\u4e0e\u4eba\u3001\u4eba\u4e0e\u7269\u3001\u7269\u4e0e\u7269\u4e4b\u95f4\u5b9e\u73b0\u4fe1\u606f\u4ea4\u4e92\uff0c\u5b9e\u73b0\u7269\u54c1\u7684\u81ea\u52a8\u8bc6\u522b\uff0c\u76d1\u63a7\u5b9a\u4f4d\u548c\u8fdc\u7a0b\u7ba1\u7406\u3002\u7269\u8054\u7f51\u4ee5\u73b0\u6709\u7684\u4e92\u8054\u7f51\u548c\u5404\u79cd\u4e13\u6709\u7684\u7f51\u4e3a\u57fa\u7840\uff0c\u4f20\u8f93\u901a\u8fc7\u611f\u77e5\u5c42\u91c7\u96c6\u6c47\u603b\u7684\u5404\u7c7b\u6570\u636e\uff0c\u5b9e\u73b0\u6570\u636e\u7684\u5b9e\u65f6\u4f20\u8f93\u5e76\u4fdd\u8bc1\u6570\u636e\u5b89\u5168\u3002<\/p>\n

\u76ee\u524d\u7684\u6709\u7ebf\u548c\u65e0\u7ebf\u4e92\u8054\u7f51\u30012G\u548c3G\u7f51\u7edc\u7b49\uff0c\u90fd\u53ef\u4ee5\u4f5c\u4e3a\u4f20\u8f93\u5c42\u7684\u7ec4\u6210\u90e8\u5206\u3002\u5728\u667a\u80fd\u5c0f\u533a\u3001\u667a\u80fd\u5bb6\u5c45\u7b49\u7269\u8054\u7f51\u7ec8\u7aef\u666e\u53ca\u7684\u672a\u6765\uff0c\u4e3a\u4e86\u4fdd\u8bc1\u65e0\u7ebf\u4f20\u8f93\u6570\u636e\u7684\u5b89\u5168\uff0c\u65e0\u7ebf\u4f20\u8f93\u534f\u8bae\u663e\u5f97\u5c24\u4e3a\u91cd\u8981\u3002<\/p>\n

\"\u6700\u5168\u9762\u7684\u667a\u80fd\u9501\u9886\u57df\u5e38\u89c1\u7684\u65e0\u7ebf\u4f20\u8f93\u534f\u8bae\u7c7b\u578b\u63d2\u56fe\"<\/p>\n

\u4e0b\u9762\u5c31\u6765\u770b\u770b\u7269\u8054\u7f51\u4e2d\u5e38\u89c1\u7684\u65e0\u7ebf\u4f20\u8f93\u534f\u8bae\u7c7b\u578b\uff1a<\/p>\n

RFID<\/strong><\/p>\n

RFID(Radio Frequency Identification)\uff0c\u5373\u5c04\u9891\u8bc6\u522b\uff0c\u4fd7\u79f0\u7535\u5b50\u6807\u7b7e\u3002\u5b83\u662f\u4e00\u79cd\u975e\u63a5\u89e6\u5f0f\u7684\u81ea\u52a8\u8bc6\u522b\u6280\u672f\uff0c\u901a\u8fc7\u5c04\u9891\u4fe1\u53f7\u81ea\u52a8\u8bc6\u522b\u76ee\u6807\u5bf9\u8c61\u5e76\u83b7\u53d6\u76f8\u5173\u6570\u636e\u3002<\/p>\n

RFID\u7531\u6807\u7b7e(Tag)\u3001\u89e3\u8bfb\u5668(Reader)\u548c\u5929\u7ebf(Antenna)\u4e09\u4e2a\u57fa\u672c\u8981\u7d20\u7ec4\u6210\u3002\u00a0RFID\u6280\u672f\u7684\u57fa\u672c\u5de5\u4f5c\u539f\u7406\u5e76\u4e0d\u590d\u6742\uff0c\u6807\u7b7e\u8fdb\u5165\u78c1\u573a\u540e\uff0c\u63a5\u6536\u89e3\u8bfb\u5668\u53d1\u51fa\u7684\u5c04\u9891\u4fe1\u53f7\uff0c\u51ed\u501f\u611f\u5e94\u7535\u6d41\u6240\u83b7\u5f97\u7684\u80fd\u91cf\u53d1\u9001\u51fa\u5b58\u50a8\u5728\u82af\u7247\u4e2d\u7684\u4ea7\u54c1\u4fe1\u606f(Passive Tag \uff0c\u65e0\u6e90\u6807\u7b7e\u6216\u88ab\u52a8\u6807\u7b7e)\uff0c\u6216\u8005\u4e3b\u52a8\u53d1\u9001\u67d0\u4e00\u9891\u7387\u7684\u4fe1\u53f7(Active Tag\uff0c\u6709\u6e90\u6807\u7b7e\u6216\u4e3b\u52a8\u6807\u7b7e)\uff0c\u89e3\u8bfb\u5668\u8bfb\u53d6\u4fe1\u606f\u5e76\u89e3\u7801\u540e\uff0c\u9001\u81f3\u4e2d\u592e\u4fe1\u606f\u7cfb\u7edf\u8fdb\u884c\u6709\u5173\u6570\u636e\u5904\u7406\u3002<\/p>\n

\"\u6700\u5168\u9762\u7684\u667a\u80fd\u9501\u9886\u57df\u5e38\u89c1\u7684\u65e0\u7ebf\u4f20\u8f93\u534f\u8bae\u7c7b\u578b\u63d2\u56fe1\"<\/p>\n

RFID\u53ef\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5b89\u5168\u9632\u4f2a\u3001\u5de5\u5546\u4e1a\u81ea\u52a8\u5316\u3001\u8d22\u4ea7\u4fdd\u62a4\u3001\u7269\u6d41\u4e1a\u3001\u8f66\u8f86\u8ddf\u8e2a\u3001\u505c\u8f66\u573a\u548c\u9ad8\u901f\u516c\u8def\u7684\u4e0d\u505c\u8f66\u6536\u8d39\u7cfb\u7edf\u7b49\u3002\u4ece\u884c\u4e1a\u4e0a\u8bb2\uff0cRFID\u5c06\u6e17\u900f\u5230\u5305\u62ec\u6c7d\u8f66\u3001\u533b\u836f\u3001\u98df\u54c1\u3001\u4ea4\u901a\u8fd0\u8f93\u3001\u80fd\u6e90\u3001\u519b\u5de5\u3001\u52a8\u7269\u7ba1\u7406\u4ee5\u53ca\u4eba\u4e8b\u7ba1\u7406\u7b49\u5404\u4e2a\u9886\u57df\u3002<\/p>\n

\u7ea2\u5916<\/strong><\/p>\n

\u7ea2\u5916\u6280\u672f\u4e5f\u662f\u65e0\u7ebf\u901a\u4fe1\u6280\u672f\u7684\u4e00\u79cd\uff0c\u53ef\u4ee5\u8fdb\u884c\u65e0\u7ebf\u6570\u636e\u7684\u4f20\u8f93\u3002\u7ea2\u5916\u6709\u660e\u663e\u7684\u7279\u70b9\uff1a\u70b9\u5bf9\u70b9\u7684\u4f20\u8f93\u65b9\u5f0f\uff0c\u65e0\u7ebf\uff0c\u4e0d\u80fd\u79bb\u5f97\u592a\u8fdc\uff0c\u8981\u5bf9\u51c6\u65b9\u5411\uff0c\u4e0d\u80fd\u7a7f\u5899\u4e0e\u969c\u788d\u7269\uff0c\u51e0\u4e4e\u65e0\u6cd5\u63a7\u5236\u4fe1\u606f\u4f20\u8f93\u7684\u8fdb\u5ea6\u3002802.11\u7269\u7406\u5c42\u6807\u51c6\u4e2d\uff0c\u9664\u4e86\u4f7f\u75282.4GHz\u9891\u7387\u7684\u5c04\u9891\u5916\uff0c\u8fd8\u5305\u62ec\u4e86\u7ea2\u5916\u7684\u6709\u5173\u6807\u51c6\u3002IrDA1.0\u652f\u6301\u6700\u9ad8115.2kbps\u7684\u901a\u4fe1\u901f\u7387\uff0cIrDA1.1\u652f\u6301\u52304Mbps\u3002\u8be5\u6280\u672f\u57fa\u672c\u4e0a\u5df2\u88ab\u6dd8\u6c70\uff0c\u88ab\u84dd\u7259\u548c\u66f4\u65b0\u7684\u6280\u672f\u4ee3\u66ff\u3002<\/p>\n

ZigBee<\/strong><\/p>\n

ZigBee\u662f\u4e00\u79cd\u65b0\u5174\u7684\u77ed\u8ddd\u79bb\u3001\u4f4e\u529f\u8017\u3001\u4f4e\u901f\u7387\u7684\u8fd1\u8ddd\u79bb\u7684\u65e0\u7ebf\u7f51\u7edc\u6280\u672f\u3002ZigBee \u7684\u57fa\u7840\u662fIEEE802.15.4\uff0c\u8fd9\u662fIEEE\u65e0\u7ebf\u4e2a\u4eba\u533a\u57df\u5de5\u4f5c\u7ec4\u7684\u4e00\u9879\u6807\u51c6\u3002\u4f46IEEE802.15.4\u4ec5\u5904\u7406\u4f4e\u7ea7MAC\u5c42\u548c\u7269\u7406\u5c42\u534f\u8bae\uff0c\u6240\u4ee5ZigBee\u8054\u76df\u5bf9\u5176\u7f51\u7edc\u5c42\u548cAPI\u8fdb\u884c\u4e86\u6807\u51c6\u5316\uff0c\u540c\u65f6\u8054\u76df\u8fd8\u8d1f\u8d23\u5176\u5b89\u5168\u534f\u8bae\u3001\u5e94\u7528\u6587\u6863\u548c\u5e02\u573a\u63a8\u5e7f\u7b49\u3002<\/p>\n

ZigBee\u8054\u76df\u6210\u7acb\u4e8e2001\u5e748\u6708\uff0c\u7531\u82f1\u56fdInvensys\u3001\u65e5\u672c\u4e09\u83f1\u7535\u6c14\u3001\u7f8e\u56fd\u6469\u6258\u7f57\u62c9\u3001\u8377\u5170\u98de\u5229\u6d66\u534a\u5bfc\u4f53\u7b49\u516c\u53f8\u5171\u540c\u7ec4\u6210\u3002ZigBee\u4e0eBluetooth(\u84dd\u7259)\u3001WiFi(\u65e0\u7ebf\u5c40\u57df\u7f51)\u540c\u5c5e\u4e8e2.4GHz\u9891\u6bb5\u7684IEEE\u6807\u51c6\u7f51\u7edc\u534f\u8bae\uff0c\u7531\u4e8e\u6027\u80fd\u5b9a\u4f4d\u4e0d\u540c\uff0c\u5404\u81ea\u7684\u5e94\u7528\u4e5f\u4e0d\u540c\u3002<\/p>\n

\"\u6700\u5168\u9762\u7684\u667a\u80fd\u9501\u9886\u57df\u5e38\u89c1\u7684\u65e0\u7ebf\u4f20\u8f93\u534f\u8bae\u7c7b\u578b\u63d2\u56fe2\"<\/p>\n

ZigBee\u6709\u663e\u8457\u7684\u7279\u70b9\uff1a\u8d85\u4f4e\u529f\u8017\uff0c\u7f51\u7edc\u5bb9\u91cf\u5927\uff0c\u6570\u636e\u4f20\u8f93\u53ef\u9760\uff0c\u65f6\u5ef6\u77ed\uff0c\u5b89\u5168\u6027\u597d\uff0c\u5b9e\u73b0\u6210\u672c\u4f4e\u3002 \u5728ZigBee\u6280\u672f\u4e2d\uff0c\u91c7\u7528\u5bf9\u79f0\u5bc6\u94a5\u7684\u5b89\u5168\u673a\u5236\uff0c\u5bc6\u94a5\u7531\u7f51\u7edc\u5c42\u548c\u5e94\u7528\u5c42\u6839\u636e\u5b9e\u9645\u5e94\u7528\u9700\u8981\u751f\u6210\uff0c\u5e76\u5bf9\u5176\u8fdb\u884c\u7ba1\u7406\u3001\u5b58\u50a8\u3001\u4f20\u9001\u548c\u66f4\u65b0\u7b49\u3002\u56e0\u6b64\uff0c\u5728\u672a\u6765\u7684\u7269\u8054\u7f51\u4e2d\uff0cZigBee\u6280\u672f\u663e\u5f97\u5c24\u4e3a\u91cd\u8981\uff0c\u5df2\u5728\u7f8e\u56fd\u7684\u667a\u80fd\u5bb6\u5c45\u7b49\u7269\u8054\u7f51\u9886\u57df\u4e2d\u5f97\u5230\u5e7f\u6cdb\u5e94\u7528\u3002<\/p>\n

\u84dd\u7259<\/strong><\/p>\n

Bluetooth\u662f1998\u5e745\u6708\uff0c\u4e1c\u829d\u3001\u7231\u7acb\u4fe1\u3001IBM\u3001Intel\u548c\u8bfa\u57fa\u4e9a\u5171\u540c\u63d0\u51fa\u7684\u6280\u672f\u6807\u51c6\u3002\u4f5c\u4e3a\u4e00\u79cd\u65e0\u7ebf\u6570\u636e\u4e0e\u8bed\u97f3\u901a\u4fe1\u7684\u5f00\u653e\u6027\u5168\u7403\u89c4\u8303\uff0c\u84dd\u7259\u4ee5\u4f4e\u6210\u672c\u7684\u8fd1\u8ddd\u79bb\u65e0\u7ebf\u8fde\u63a5\u4e3a\u57fa\u7840\uff0c\u4e3a\u56fa\u5b9a\u4e0e\u79fb\u52a8\u8bbe\u5907\u901a\u4fe1\u73af\u5883\u5efa\u7acb\u4e00\u4e2a\u7279\u522b\u8fde\u63a5\uff0c\u5b8c\u6210\u6570\u636e\u4fe1\u606f\u7684\u77ed\u7a0b\u65e0\u7ebf\u4f20\u8f93\u3002\u5176\u5b9e\u8d28\u5185\u5bb9\u662f\u8981\u5efa\u7acb\u901a\u7528\u7684\u65e0\u7ebf\u7535\u7a7a\u4e2d\u63a5\u53e3(Radio Air Interface)\u53ca\u5176\u63a7\u5236\u8f6f\u4ef6\u7684\u516c\u5f00\u6807\u51c6\uff0c\u4f7f\u901a\u4fe1\u548c\u8ba1\u7b97\u673a\u8fdb\u4e00\u6b65\u7ed3\u5408\uff0c\u4f7f\u4e0d\u540c\u5382\u5bb6\u751f\u4ea7\u7684\u4fbf\u643a\u5f0f\u8bbe\u5907\u5728\u6ca1\u6709\u7535\u7ebf\u6216\u7535\u7f06\u76f8\u4e92\u8fde\u63a5\u7684\u60c5\u51b5\u4e0b\uff0c\u80fd\u591f\u5728\u8fd1\u8ddd\u79bb\u8303\u56f4\u5185\u5177\u6709\u4e92\u7528\u3001\u4e92\u64cd\u4f5c\u7684\u6027\u80fd(Interoperability)\u3002<\/p>\n

\"\u6700\u5168\u9762\u7684\u667a\u80fd\u9501\u9886\u57df\u5e38\u89c1\u7684\u65e0\u7ebf\u4f20\u8f93\u534f\u8bae\u7c7b\u578b\u63d2\u56fe3\"<\/p>\n

\u84dd\u7259\u4ee5\u65e0\u7ebfLANs\u7684IEEE802.11\u6807\u51c6\u6280\u672f\u4e3a\u57fa\u7840\u3002\u5e94\u7528\u4e86\u201cPlonkandplay\u201d\u7684\u6982\u5ff5(\u6709\u70b9\u7c7b\u4f3c\u201c\u5373\u63d2\u5373\u7528\u201d)\uff0c\u5373\u4efb\u610f\u4e00\u4e2a\u84dd\u7259\u8bbe\u5907\u4e00\u65e6\u641c\u5bfb\u5230\u53e6\u4e00\u4e2a\u84dd\u7259\u8bbe\u5907\uff0c\u9a6c\u4e0a\u5c31\u53ef\u4ee5\u5efa\u7acb\u8054\u7cfb\uff0c\u800c\u65e0\u9700\u7528\u6237\u8fdb\u884c\u4efb\u4f55\u8bbe\u7f6e\uff0c\u56e0\u6b64\u53ef\u4ee5\u89e3\u91ca\u6210\u201c\u5373\u8fde\u5373\u7528\u201d\u3002<\/p>\n

\"\u6700\u5168\u9762\u7684\u667a\u80fd\u9501\u9886\u57df\u5e38\u89c1\u7684\u65e0\u7ebf\u4f20\u8f93\u534f\u8bae\u7c7b\u578b\u63d2\u56fe4\"<\/p>\n

\u84dd\u7259\u6280\u672f\u6709\u6210\u672c\u4f4e\uff0c\u529f\u8017\u4f4e\u3001\u4f53\u79ef\u5c0f\uff0c\u8fd1\u8ddd\u79bb\u901a\u4fe1\uff0c\u5b89\u5168\u6027\u597d\u7684\u7279\u70b9\u3002 \u84dd\u7259\u5728\u672a\u6765\u7684\u7269\u8054\u7f51\u53d1\u5c55\u4e2d\u5c06\u5f97\u5230\u4e00\u5b9a\u7684\u5e94\u7528\uff0c\u7279\u522b\u662f\u5e94\u7528\u5728\u529e\u516c\u573a\u6240\u3001\u5bb6\u5ead\u667a\u80fd\u5bb6\u5c45\u7b49\u73af\u5883\u4e2d\u3002<\/p>\n

GPRS<\/strong><\/p>\n

\u901a\u7528\u5206\u7ec4\u65e0\u7ebf\u670d\u52a1\u6280\u672f(General Packet Radio Service\uff0cGPRS)\uff0c\u4f7f\u7528\u5e26\u79fb\u52a8\u6027\u7ba1\u7406\u7684\u5206\u7ec4\u4ea4\u6362\u6a21\u5f0f\u4ee5\u53ca\u65e0\u7ebf\u63a5\u5165\u6280\u672f\u3002GPRS\u53ef\u8bf4\u662fGSM\u7684\u5ef6\u7eed\u3002GPRS\u548c\u4ee5\u5f80\u8fde\u7eed\u5728\u9891\u9053\u4f20\u8f93\u7684\u65b9\u5f0f\u4e0d\u540c\uff0c\u662f\u4ee5\u5c01\u5305(Packet)\u5f0f\u6765\u4f20\u8f93\uff0c\u56e0\u6b64\u4f7f\u7528\u8005\u6240\u8d1f\u62c5\u7684\u8d39\u7528\u662f\u4ee5\u5176\u4f20\u8f93\u8d44\u6599\u5355\u4f4d\u6765\u8ba1\u7b97\uff0c\u5e76\u975e\u4f7f\u7528\u5176\u6574\u4e2a\u9891\u9053\uff0c\u7406\u8bba\u4e0a\u8f83\u4e3a\u4fbf\u5b9c\u3002GPRS\u7684\u4f20\u8f93\u901f\u7387\u53ef\u63d0\u5347\u81f356\u751a\u81f3114Kbps\u3002\u4f46GPRS\u6280\u672f\u4e0d\u592a\u9002\u5408\u667a\u80fd\u5bb6\u5c45\u4f7f\u7528\uff0c\u4e3b\u8981\u5e94\u7528\u5728\u7535\u4fe1\u7f51\u7edc\u3002<\/p>\n

\"\u6700\u5168\u9762\u7684\u667a\u80fd\u9501\u9886\u57df\u5e38\u89c1\u7684\u65e0\u7ebf\u4f20\u8f93\u534f\u8bae\u7c7b\u578b\u63d2\u56fe5\"<\/p>\n

3G<\/strong><\/p>\n

\u7b2c\u4e09\u4ee3\u79fb\u52a8\u901a\u4fe1\u6280\u672f\uff083rd-generation\uff0c3G\uff09\uff0c\u662f\u6307\u652f\u6301\u9ad8\u901f\u6570\u636e\u4f20\u8f93\u7684\u8702\u7a9d\u79fb\u52a8\u901a\u8baf\u6280\u672f\u30023G\u670d\u52a1\u80fd\u591f\u540c\u65f6\u4f20\u9001\u58f0\u97f3\u53ca\u6570\u636e\u4fe1\u606f\uff0c\u901f\u7387\u4e00\u822c\u5728\u51e0\u767ekbps\u4ee5\u4e0a\u3002<\/p>\n

\u76ee\u524d3G\u5b58\u5728\u56db\u79cd\u6807\u51c6\uff1aCDMA2000\uff08\u7f8e\u56fd\u7248\uff09\uff0cWCDMA\uff08\u6b27\u6d32\u7248\uff09\uff0cTD-SCDMA\uff08\u4e2d\u56fd\u7248\uff09\uff0cWiMAX\u3002\u56fd\u9645\u7535\u4fe1\u8054\u76df\uff08ITU\uff09\u57282000\u5e745\u6708\u786e\u5b9aWCDMA\u3001CDMA2000\u3001TD-SCDMA\u4e09\u5927\u4e3b\u6d41\u65e0\u7ebf\u63a5\u53e3\u6807\u51c6\uff0c\u5199\u51653G\u6280\u672f\u6307\u5bfc\u6027\u6587\u4ef6\u300a2000\u5e74\u56fd\u9645\u79fb\u52a8\u901a\u8baf\u8ba1\u5212\u300b\u30022007\u5e74\uff0cWiMAX\u4ea6\u88ab\u63a5\u53d7\u4e3a3G\u6807\u51c6\u4e4b\u4e00\u3002<\/p>\n

\"\u6700\u5168\u9762\u7684\u667a\u80fd\u9501\u9886\u57df\u5e38\u89c1\u7684\u65e0\u7ebf\u4f20\u8f93\u534f\u8bae\u7c7b\u578b\u63d2\u56fe6\"<\/p>\n

CDMA\u662fCode Division Multiple Access (\u7801\u5206\u591a\u5740)\u7684\u7f29\u5199\uff0c\u662f\u7b2c\u4e09\u4ee3\u79fb\u52a8\u901a\u4fe1\u7cfb\u7edf\u7684\u6280\u672f\u57fa\u7840\u3002\u7b2c\u4e00\u4ee3\u79fb\u52a8\u901a\u4fe1\u7cfb\u7edf\u91c7\u7528\u9891\u5206\u591a\u5740(FDMA)\u7684\u6a21\u62df\u8c03\u5236\u65b9\u5f0f\uff0c\u800c\u8fd9\u79cd\u7cfb\u7edf\u7684\u4e3b\u8981\u7f3a\u70b9\u662f\u9891\u8c31\u5229\u7528\u7387\u4f4e\uff0c\u4fe1\u4ee4\u5e72\u6270\u8bdd\u97f3\u4e1a\u52a1\u3002<\/p>\n

\u7b2c\u4e8c\u4ee3\u79fb\u52a8\u901a\u4fe1\u7cfb\u7edf\u4e3b\u8981\u91c7\u7528\u65f6\u5206\u591a\u5740(TDMA)\u7684\u6570\u5b57\u8c03\u5236\u65b9\u5f0f\uff0c\u63d0\u9ad8\u4e86\u7cfb\u7edf\u5bb9\u91cf\uff0c\u5e76\u91c7\u7528\u72ec\u7acb\u4fe1\u9053\u4f20\u9001\u4fe1\u4ee4\uff0c\u4f7f\u7cfb\u7edf\u6027\u80fd\u5927\u5927\u6539\u5584\uff0c\u4f46TDMA\u7684\u7cfb\u7edf\u5bb9\u91cf\u4ecd\u7136\u6709\u9650\uff0c\u8d8a\u533a\u5207\u6362\u6027\u80fd\u4ecd\u4e0d\u5b8c\u5584\u3002\u800cCDMA\u7cfb\u7edf\u4ee5\u5176\u9891\u7387\u89c4\u5212\u7b80\u5355\u3001\u7cfb\u7edf\u5bb9\u91cf\u5927\u3001\u9891\u7387\u590d\u7528\u7cfb\u6570\u9ad8\u3001\u6297\u591a\u5f84\u80fd\u529b\u5f3a\u3001\u901a\u4fe1\u8d28\u91cf\u597d\u3001\u8f6f\u5bb9\u91cf\u3001\u8f6f\u5207\u6362\u7b49\u7279\u70b9\u663e\u793a\u51fa\u5de8\u5927\u7684\u53d1\u5c55\u6f5c\u529b\u3002<\/p>\n

4G<\/strong><\/p>\n

4G\u6280\u672f\u53c8\u79f0IMT-Advanced\u6280\u672f\u3002 \u51c64G\u6807\u51c6\uff0c\u662f\u4e1a\u5185\u5bf9TD\u6280\u672f\u54114G\u7684\u6700\u65b0\u8fdb\u5c55\u7684TD-LTE-Advanced\u79f0\u8c13\u3002\u5bf9\u4e8e4G\u4e2d\u5c06\u4f7f\u7528\u7684\u6838\u5fc3\u6280\u672f\uff0c\u4e1a\u754c\u5e76\u6ca1\u6709\u592a\u5927\u7684\u5206\u6b67\u3002\u603b\u7ed3\u8d77\u6765\uff0c\u6709\u6b63\u4ea4\u9891\u5206\u590d\u7528\uff08OFDM\uff09\u6280\u672f\u3001\u8f6f\u4ef6\u65e0\u7ebf\u7535\u3001\u667a\u80fd\u5929\u7ebf\u6280\u672f\u591a\u8f93\u5165\u591a\u8f93\u51fa\uff08MIMO\uff09\u6280\u672f\u548c\u57fa\u4e8eIP\u7684\u6838\u5fc3\u7f51\u4e94\u79cd\u3002<\/p>\n

\u7531\u4e8e\u4eba\u4eec\u7814\u7a764G\u901a\u4fe1\u7684\u6700\u521d\u76ee\u7684\u5c31\u662f\u63d0\u9ad8\u8702\u7a9d\u7535\u8bdd\u548c\u5176\u4ed6\u79fb\u52a8\u88c5\u7f6e\u65e0\u7ebf\u8bbf\u95eeInternet\u7684\u901f\u7387\uff0c\u56e0\u6b644G\u901a\u4fe1\u7ed9\u4eba\u5370\u8c61\u6700\u6df1\u523b\u7684\u7279\u5f81\u83ab\u8fc7\u4e8e\u5b83\u5177\u6709\u66f4\u5feb\u7684\u65e0\u7ebf\u901a\u4fe1\u901f\u5ea6\u3002\u6b64\u5916\uff0c4G\u8fd8\u6709\u7f51\u7edc\u9891\u8c31\u5bbd\u3001\u901a\u4fe1\u7075\u6d3b\u3001\u667a\u80fd\u6027\u80fd\u9ad8 \u3001\u517c\u5bb9\u6027\u597d \u3001\u8d39\u7528\u4fbf\u5b9c\u7b49\u4f18\u70b9\u3002<\/p>\n

4G\u901a\u4fe1\u6280\u672f\u5e76\u975e\u5b8c\u7f8e\u65e0\u7f3a\uff0c\u4e3b\u8981\u4f53\u73b0\u5728\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a\u4e00\u662f4G\u901a\u4fe1\u6280\u672f\u7684\u6280\u672f\u6807\u51c6\u96be\u4ee5\u7edf\u4e00\u3002\u4e8c\u662f4G\u901a\u4fe1\u6280\u672f\u7684\u5e02\u573a\u63a8\u5e7f\u96be\u4ee5\u5b9e\u73b0\u3002\u4e09\u662f4G\u901a\u4fe1\u6280\u672f\u7684\u914d\u5957\u8bbe\u65bd\u96be\u4ee5\u66f4\u65b0\u3002<\/p>\n

\"\u6700\u5168\u9762\u7684\u667a\u80fd\u9501\u9886\u57df\u5e38\u89c1\u7684\u65e0\u7ebf\u4f20\u8f93\u534f\u8bae\u7c7b\u578b\u63d2\u56fe7\"<\/p>\n

Wi-Fi<\/strong><\/p>\n

Wi-Fi \u5168\u79f0\u4e3aWireless Fidelity\uff0c\u53c8\u79f0IEEE 802.11b\u6807\u51c6\uff0c\u5b83\u6700\u5927\u7684\u4f18\u70b9\u5c31\u662f\u4f20\u8f93\u7684\u901f\u5ea6\u8f83\u9ad8\uff0c\u53ef\u4ee5\u8fbe\u523011Mb\/s\uff0c\u53e6\u5916\u5b83\u7684\u6709\u6548\u8ddd\u79bb\u4e5f\u5f88\u957f\uff0c\u540c\u65f6\u4e5f\u4e0e\u5df2\u6709\u7684\u5404\u79cdIEEE 802.11 DSSS\uff08\u76f4\u63a5\u5e8f\u5217\u5c55\u9891\u6280\u672f\uff0cDirect Sequence Spread Spectrum\uff09\u8bbe\u5907\u517c\u5bb9\u3002<\/p>\n

\"\u6700\u5168\u9762\u7684\u667a\u80fd\u9501\u9886\u57df\u5e38\u89c1\u7684\u65e0\u7ebf\u4f20\u8f93\u534f\u8bae\u7c7b\u578b\u63d2\u56fe8\"<\/p>\n

IEEE 802.11b\u65e0\u7ebf\u7f51\u7edc\u89c4\u8303\u662f\u5728IEEE802.11a\u7f51\u7edc\u89c4\u8303\u57fa\u7840\u4e4b\u4e0a\u53d1\u5c55\u8d77\u6765\u7684\uff0c\u6700\u9ad8\u5e26\u5bbd\u4e3a11Mb\/s\uff0c\u5728\u4fe1\u53f7\u8f83\u5f31\u6216\u6709\u5e72\u6270\u7684\u60c5\u51b5\u4e0b\uff0c\u5e26\u5bbd\u53ef\u8c03\u6574\u4e3a5.5Mb\/s\u30012Mb\/s\u548c1Mb\/s\u3002\u5e26\u5bbd\u7684\u81ea\u52a8\u8c03\u6574\u6709\u6548\u5730\u4fdd\u969c\u4e86\u7f51\u7edc\u7684\u7a33\u5b9a\u6027\u548c\u53ef\u9760\u6027\u3002Wi-Fi\u65e0\u7ebf\u4fdd\u771f\u6280\u672f\u4e0e\u84dd\u7259\u6280\u672f\u4e00\u6837\uff0c\u5c5e\u4e8e\u529e\u516c\u5ba4\u4e0e\u5bb6\u5ead\u4f7f\u7528\u7684\u77ed\u8ddd\u79bb\u65e0\u7ebf\u6280\u672f\uff0c\u4f7f\u7528\u9891\u6bb5\u662f2.4GHz\u9644\u8fd1\u7684\u9891\u6bb5\uff0c\u8be5\u9891\u6bb5\u76ee\u524d\u5c1a\u5c5e\u6ca1\u7528\u8bb8\u53ef\u7684\u65e0\u7ebf\u9891\u6bb5\uff0c\u53ef\u4ee5\u4f7f\u7528\u7684\u6807\u51c6\u6709\u4e24\u4e2a\u5373802.11ay\u4e0e802.11b\uff0c802.11g\u662f802.11b\u7684\u7ee7\u627f\u3002<\/p>\n

\u5176\u4e3b\u8981\u7684\u7279\u6027\u4e3a\uff1a\u901f\u5ea6\u5feb\u3001\u53ef\u9760\u6027\u9ad8\u3002\u5728\u5f00\u653e\u533a\u57df\uff0c\u5176\u901a\u4fe1\u8ddd\u79bb\u53ef\u8fbe305m\u3002\u5728\u5c01\u95ed\u6027\u533a\u57df\u5176\u901a\u4fe1\u8ddd\u79bb\u4e3a76\uff5e122m\uff0c\u65b9\u4fbf\u4e0e\u73b0\u6709\u7684\u6709\u7ebf\u4ee5\u592a\u7f51\u6574\u5408\uff0c\u7ec4\u7f51\u7684\u6210\u672c\u66f4\u4f4e\u3002<\/p>\n

\"\u6700\u5168\u9762\u7684\u667a\u80fd\u9501\u9886\u57df\u5e38\u89c1\u7684\u65e0\u7ebf\u4f20\u8f93\u534f\u8bae\u7c7b\u578b\u63d2\u56fe9\"<\/p>\n

NB-IoT<\/strong><\/p>\n

NB-IoT\u5373\u7a84\u5e26\u7269\u8054\u7f51 \uff08Narrow Band -Internet of Things\uff09\uff0c\u662f\u7269\u8054\u7f51\u6280\u672f\u7684\u4e00\u79cd\uff0c\u5177\u6709\u4f4e\u6210\u672c\u3001\u4f4e\u529f\u8017\u3001\u5e7f\u8986\u76d6\u7b49\u7279\u70b9\uff0c\u5b9a\u4f4d\u4e8e\u8fd0\u8425\u5546\u7ea7\u3001\u57fa\u4e8e\u6388\u6743\u9891\u8c31\u7684\u4f4e\u901f\u7387\u7269\u8054\u7f51\u5e02\u573a\uff0c\u62e5\u6709\u5e7f\u9614\u7684\u5e94\u7528\u524d\u666f\u3002NB-IoT\u6280\u672f\u5305\u542b\u516d\u5927\u4e3b\u8981\u5e94\u7528\u573a\u666f\uff0c\u5305\u62ec\u4f4d\u7f6e\u8ddf\u8e2a\u3001\u73af\u5883\u76d1\u6d4b\u3001\u667a\u80fd\u6cca\u8f66\u3001\u8fdc\u7a0b\u6284\u8868\u3001\u519c\u4e1a\u548c\u755c\u7267\u4e1a\u3002\u800c\u8fd9\u4e9b\u573a\u666f\u6070\u6070\u662f\u73b0\u6709\u79fb\u52a8\u901a\u4fe1\u5f88\u96be\u7684\u652f\u6301\u7684\u573a\u666f\u3002\u5e02\u573a\u7814\u7a76\u516c\u53f8Machina\u9884\u6d4b\uff0cNB-IoT\u6280\u672f\u672a\u6765\u5c06\u8986\u76d625%\u7684\u7269\u8054\u7f51\u8fde\u63a5\u3002<\/p>\n

NB-IoT\u662f3GPP R13\u9636\u6bb5LTE\u7684\u4e00\u9879\u91cd\u8981\u589e\u5f3a\u6280\u672f\uff0c\u5c04\u9891\u5e26\u5bbd\u53ef\u4ee5\u4f4e\u81f30.18MHz\u3002NB-IoT\u662fNB-CIoT\u548cNB-LTE\u4e24\u79cd\u6807\u51c6\u7684\u878d\u5408\uff0c\u5e73\u8861\u4e86\u5404\u65b9\u5229\u76ca\uff0c\u5e76\u9002\u7528\u4e8e\u66f4\u5e7f\u6cdb\u7684\u90e8\u7f72\u573a\u666f\u3002\u5176\u4e2d\uff0c\u534e\u4e3a\u3001\u6c83\u8fbe\u4e30\u3001\u9ad8\u901a\u7b49\u516c\u53f8\u652f\u6301NB-CIoT\uff1b\u7231\u7acb\u4fe1\u3001\u4e2d\u5174\u3001\u4e09\u661f\u3001\u82f1\u7279\u5c14\u3001MTK\u7b49\u516c\u53f8\u652f\u6301NB-LTE\u3002NB-CIoT\u3001NB-LTE\u4e0e\u6807\u51c6NB-IoT\u76f8\u6bd4\u90fd\u6709\u8f83\u5927\u5dee\u5f02\uff0c\u7ec8\u7aef\u65e0\u6cd5\u5e73\u6ed1\u5347\u7ea7\uff0c\u4e00\u4e9b\u975e\u6807\u57fa\u7ad9\u751a\u81f3\u9762\u4e34\u9000\u7f51\u98ce\u9669\u3002<\/p>\n

\"\u6700\u5168\u9762\u7684\u667a\u80fd\u9501\u9886\u57df\u5e38\u89c1\u7684\u65e0\u7ebf\u4f20\u8f93\u534f\u8bae\u7c7b\u578b\u63d2\u56fe10\"<\/p>\n

\u968f\u7740\u7269\u8054\u7f51\u6280\u672f\u548c\u5e94\u7528\u7684\u4e0d\u65ad\u53d1\u5c55\uff0c\u65e0\u7ebf\u4f20\u8f93\u534f\u8bae\u5c06\u8fce\u6765\u524d\u6240\u672a\u6709\u7684\u53d1\u5c55\uff0c\u5176\u5728\u672a\u6765\u667a\u80fd\u5316\u7cfb\u7edf\u4e2d\u7684\u5e94\u7528\u4e5f\u5c06\u4f1a\u5448\u73b0\u7206\u53d1\u6027\u7684\u589e\u957f\u3002<\/p>\n

\"\u6700\u5168\u9762\u7684\u667a\u80fd\u9501\u9886\u57df\u5e38\u89c1\u7684\u65e0\u7ebf\u4f20\u8f93\u534f\u8bae\u7c7b\u578b\u63d2\u56fe11\"<\/p>\n","protected":false},"excerpt":{"rendered":"

\u201c\u7269\u8054\u7f51\u201d\u6982\u5ff5\u57281999\u5e74\u7f8e\u56fd\u9ebb\u7701\u7406\u5de5\u5b66\u9662\u9996\u6b21\u88ab\u63d0\u51fa\uff0c\u72ed\u4e49\u7684\u7269\u8054\u7f51\u6307\u7684\u662f\u201c\u7269\u2014\u7269\u76f8\u8fde\u7684\u4e92\u8054\u7f51\u201d\uff0c\u8fd9\u91cc\u76f8\u8fde\u7684\u4e3b\u4f53 … <\/p>\n

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