{"id":662,"date":"2018-04-02T17:19:59","date_gmt":"2018-04-02T09:19:59","guid":{"rendered":"http:\/\/www.bijienetworks.com\/?p=662"},"modified":"2018-04-02T17:23:19","modified_gmt":"2018-04-02T09:23:19","slug":"20180402miracast","status":"publish","type":"post","link":"https:\/\/www.bijienetworks.com\/news\/company\/20180402miracast","title":{"rendered":"Miracast\u65e0\u7ebf\u6295\u5c4f\u6280\u672f\u8bde\u751f\u5e94\u7528\u4e0e\u524d\u666f"},"content":{"rendered":"<p><span style=\"color: #000000;\">\u968f\u8457\u79fb\u52a8\u8bbe\u5907\u7684\u666e\u53ca\uff0c\u76f8\u5173\u7684\u5e94\u7528\u670d\u52a1\u5df2\u4e0e\u5927\u591a\u6570\u4eba\u7684\u65e5\u5e38\u751f\u6d3b\u5bc6\u4e0d\u53ef\u5206\u3002\u5728\u5fae\u8f6f(Microsoft)\u63d0\u51fa\u7684\u300c\u4e09\u7aef\u4e00\u4e91\u300d\u6982\u5ff5\u4e2d\uff0c\u5404\u4e2a\u5c4f\u5e55\u95f4\u7684\u4e92\u52a8\u8fde\u63a5\uff0c\u662f\u8bb8\u591a\u7528\u6237\u66fe\u6e34\u671b\u7684\u529f\u80fd\uff0c\u4f46\u5374\u5f88\u5c11\u770b\u5230\u6709\u826f\u597d\u7684\u89e3\u6289\u65b9\u6848\u3002\u65e0\u7ebf\u533a\u57df\u7f51\u8def\u8054\u76df(Wi-Fi Alliance)\u6ce8\u610f\u5230\u4e0a\u8ff0\u9700\u6c42\uff0c\u56e0\u6b64\u5bf9\u4e8e\u5bb6\u5ead\u53ca\u4f01\u4e1a\u5728\u5c4f\u5e55\u95f4\u4e92\u52a8\u7684\u5e94\u7528\uff0c\u63d0\u51fa\u4ee5<strong>\u65e0\u7ebf<\/strong>\u65b9\u5f0f\u8fdb\u884c<strong>\u5c4f\u5e55\u5171\u4eab<\/strong>\u7684\u6280\u672f<strong>Miracast<\/strong>\u3002<\/span><\/p>\n<p><span style=\"color: #000000;\">Miracast\u662fWi-Fi\u8054\u76df\u7684\u8ba4\u8bc1\u540d\u79f0\uff0c\u539f\u6765\u7684\u6280\u672f\u89c4\u683c\u540d\u79f0\u4e3aWi-Fi Display\uff0c\u662fWi-Fi\u8054\u76df\u4e3a\u5de9\u56fa\u5176\u5728\u65e0\u7ebf\u5e94\u7528\u7684\u9f99\u5934\u5730\u4f4d\uff0c\u57fa\u4e8e\u65e2\u6709\u65e0\u7ebf\u901a\u8baf\u6280\u672f\u63d0\u51fa\u7684\u5c16\u7aef\u5e94\u7528\u3002\u8be5\u6280\u672f\u4e0e\u8ba4\u8bc1\u9879\u76ee\u7531Wi-Fi\u8054\u76df\u4e2d\u7684\u884c\u52a8\u4e0e\u6d88\u8d39\u6027\u7535\u5b50\u8bbe\u5907\u5236\u9020\u5546\u53ca\u6676\u7247\u5382\u5546\u5171\u540c\u5236\u5b9a\u3002<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><strong><span style=\"color: #000000;\">Miracast\u7b80\u5316\u8fde\u7ed3\u5efa\u7acb\u8fc7\u7a0b<\/span><\/strong><\/p>\n<p><span style=\"color: #000000;\">Miracast\u7b80\u5316\u5efa\u7acb\u65e0\u7ebf\u8fde\u7ed3\u7684\u8fc7\u7a0b\uff0c\u5f53\u4f7f\u7528\u8005\u5e0c\u671b\u5728\u8bbe\u5907\u95f4\u65e0\u7ebf\u5206\u4eab\u8bbe\u5907\u7684\u753b\u9762\u5185\u5bb9\u65f6\uff0c\u4e0d\u9700\u518d\u900f\u8fc7\u7e41\u590d\u7684\u8fde\u63a5\u4f20\u8f93\u7ebf\u6216\u8fdb\u884c\u8bbe\u5b9a\uff0c\u800c\u80fd\u76f4\u63a5\u76f8\u4e92\u8bc6\u522b\u3001\u76f8\u4e92\u8fde\u7ed3\uff0c\u5e76\u80fd\u7ba1\u7406\u94fe\u63a5\uff0c\u6839\u636e\u8bbe\u5907\u7684\u529f\u80fd\u4e0e\u7f51\u8def\u6761\u4ef6\uff0c\u534f\u8c03\u5f71\u97f3\u4f20\u8f93\u683c\u5f0f\uff0c\u8ba9\u5f71\u97f3\u753b\u9762\u80fd\u5728\u4e0d\u540c\u7684\u8bbe\u5907\u95f4\u4e32\u6d41\u5206\u4eab\u3002<\/span><\/p>\n<p><span style=\"color: #000000;\">\u5229\u7528Miracast\u6280\u672f\uff0c\u4f7f\u7528\u8005\u4e0d\u518d\u9700\u8981\u5bfb\u627e\u5404\u79cd\u89c4\u683c\u7684\u7ebf\u6750\u4e0e\u8f6c\u6362\u5668\uff0c\u4e5f\u4e0d\u9700\u8981\u786e\u8ba4\u7528\u4e8e\u8fde\u63a5\u8bbe\u5907\u7684\u6b63\u786e\u63a5\u5934\u3002\u667a\u80fd\u624b\u673a\u3001\u5e73\u677f\u3001\u4e2a\u4eba\u7535\u8111\u7b49\u8bbe\u5907\u4e0d\u518d\u9700\u8981\u8fde\u63a5\u754c\u9762\u590d\u6742\u7684\u8bbe\u5b9a\uff0c\u5c31\u80fd\u4e0e\u5176\u4ed6\u7684\u8f93\u51fa\u8bbe\u5907\uff0c\u5982\u7535\u89c6\u673a\u3001\u673a\u9876\u76d2(STB)\u3001\u6295\u5f71\u673a\u3001\u97f3\u54cd\u3001\u8033\u673a\u7b49\u8fde\u63a5\uff0c\u968f\u5373\u4fbf\u80fd\u5c06\u591a\u5a92\u4f53\u4e0e\u5e94\u7528\u670d\u52a1\u7684\u5185\u5bb9\u5728\u8fdc\u7aef\u5f71\u97f3\u8bbe\u5907\u4e0a\u64ad\u653e\u3002<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><strong><span style=\"color: #000000;\">\u5927\u5382\u7ade\u76f8\u53d1\u5c55\u955c\u50cf\u6280\u672f<\/span><\/strong><\/p>\n<p><span style=\"color: #000000;\">\u955c\u50cf\u6280\u672f(Mirroring Technology)\u76f8\u5f53\u5bb9\u6613\u548c\u6570\u4f4d\u751f\u6d3b\u7f51\u8def\u8054\u76df(DLNA)\u63a8\u51fa\u7684\u6280\u672f\u65b9\u6848\u6216\u865a\u62df\u7f51\u8def\u8fd0\u7b97(VNC)\u6280\u672f\u6df7\u6dc6\u3002DLNA\u6280\u672f\u7684\u7528\u9014\u662f\u591a\u5a92\u4f53\u6587\u4ef6(\u97f3\u4e50\u3001\u56fe\u7247\u3001\u5f71\u7247)\u7684\u5206\u4eab\uff1b\u800cVNC\u5f3a\u8c03\u7684\u662f\u8fdc\u7aef\u684c\u9762\u7684\u63a7\u5236\uff0c\u672c\u6587\u8ba8\u8bba\u7684\u955c\u50cf\u6280\u672f\u5219\u662f\u5f3a\u8c03\u4e2a\u4eba\u8bbe\u5907\u4e0a\u7684\u58f0\u97f3\u753b\u9762\u5206\u4eab\uff0c\u4e0d\u9650\u4e8e\u4efb\u4f55\u6587\u4ef6\u683c\u5f0f\u53ca\u670d\u52a1\u5e94\u7528\u3002<\/span><\/p>\n<p><span style=\"color: #000000;\">\u76ee\u524d\u4e0e\u955c\u50cf\u6280\u672f\u76f8\u5173\u7684\u6280\u672f\u4e3b\u8981\u6709\u82f9\u679c(Apple)\u7684AirPlay Mirroring\u3001\u82f1\u7279\u5c14(Intel)\u7684WiDi\u3001WiGig\u8054\u76df\u7684WiGig\u3001\u6676\u940c(Silicon Image)UltraGig(Wireless HD)\u3001WHDI\u8054\u76df\u7684\u65e0\u7ebf\u6570\u4f4d\u5bb6\u5ead\u4ecb\u9762(WHDI)\u3001\u6c7d\u8f66\u8fde\u7ebf\u8054\u76df(Car Connectivity Consortium)\u7684MirrorLink\uff0c\u4ee5\u53caMiracast\u3002\u9664WiGig\u53caUltraGig\u4f7f\u7528\u7684\u662f60GHz\u7684\u9891\u6bb5\uff0c\u5176\u4ed6\u7684\u6280\u672f\u90fd\u662f\u4f7f\u75282.4GHz\u62165GHz\u7684\u9891\u6bb5\uff0c\u4e0d\u540c\u7684\u6280\u672f\u4e5f\u6709\u4e0d\u540c\u7684\u4f20\u8f93\u901f\u7387\u53ca\u5f71\u97f3\u683c\u5f0f\u7684\u89c4\u8303\u3002<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\">AirPlay Mirroring\u51ed\u501f\u5176iOS\u53caMac\u8bbe\u5907\u7684\u70ed\u5356\uff0c\u5728\u6b64\u6280\u672f\u9886\u57df\u5360\u6709\u4e00\u5b9a\u7684\u6bd4\u4f8b\uff1bWiDi\u4ee5\u5185\u5efa\u4e8e\u82f1\u7279\u5c14\u7b14\u8bb0\u578b\u7535\u8111\u5e73\u53f0\u4e0a\u7684\u4f18\u52bf\u6253\u5165\u5e02\u573a\uff1bWiGig\u6280\u672f\u7684\u4f20\u8f93\u7387\u53ef\u5230\u8fbe7Gbit\/s\uff0c2013\u5e74\u521d\u53c8\u4e0eWi-Fi\u8054\u76df\u5408\u4f75\uff0c\u56e0\u6b64\u672a\u6765\u7684\u53d1\u5c55\u503c\u5f97\u5173\u6ce8\u3002UltraGig\u7684\u4f20\u8f93\u7387\u53ef\u5230\u8fbe28Gbit\/s\uff0c\u4e0d\u8fc7\u8be5\u6280\u672f\u76ee\u524d\u7531\u6676\u50cf\u72ec\u5360\uff0c\u5f97\u89c6\u8bbe\u5907\u5236\u9020\u5546\u662f\u5426\u613f\u610f\u91c7\u7528\uff1bWHDI\u4e5f\u7531\u4e8e\u5176\u72ec\u5360\u6027\uff0c\u987b\u770b\u5236\u9020\u5546\u662f\u5426\u4e70\u5355\uff1bMirrorLink\u4e3b\u8981\u7684\u5e94\u7528\u76ee\u6807\u662f\u5728\u8f66\u8f7d\u7cfb\u7edf\uff0c\u5e76\u540c\u65f6\u5b9a\u4e49\u6709\u7ebf\u53ca\u65e0\u7ebf\u7684\u5e94\u7528\uff0c\u7531\u4e8e\u662f\u6c7d\u8f66\u8fde\u7ebf\u8054\u76df\u4e3b\u63a8\uff0c\u56e0\u6b64\u6bd4\u8f83\u6709\u673a\u4f1a\u88ab\u8f66\u5546\u6240\u63a1\u7528\uff1b\u800cMiracast\u7531Wi-Fi\u8054\u76df\u63d0\u51fa\uff0c\u5e76\u57fa\u4e8e\u65e2\u6709\u7684Wi-Fi\u6280\u672f\uff0c\u5bb9\u6613\u4e0e\u73b0\u6709\u7684\u65e0\u7ebf\u4ea7\u54c1\u7ed3\u5408\uff0c\u56e0\u6b64\u5f00\u53d1\u5382\u5546\u8f83\u591a\uff0c\u7279\u522b\u662f\u82f1\u7279\u5c14\u5ba3\u5e03WiDi 3.5\u7248\u5c06\u4e0eMircast\u76f8\u5bb9\u3002\u7531\u6b64\u53ef\u89c1\uff0cMiracast\u662f\u76ee\u524d\u6700\u88ab\u770b\u597d\u7684\u4e00\u9879\u6280\u672f\uff0c\u81ea\u4ece2012\u5e749\u6708\u4e2d\u5f00\u653e\u8ba4\u8bc1\u540e\uff0c\u5df2\u6709\u6570\u5341\u9879\u4ea7\u54c1\u901a\u8fc7\u8ba4\u8bc1\uff0c\u7ecf\u8ba4\u8bc1\u7684\u4ea7\u54c1\u6570\u91cf\u4e5f\u516d\u7eed\u589e\u52a0\u4e2d\u3002<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><strong><span style=\"color: #000000;\">Miracast\u76f8\u5bb9Wi-Fi\u6280\u672f\u57fa\u7840<\/span><\/strong><\/p>\n<p><span style=\"color: #000000;\">Miracast\u5efa\u7acb\u5728\u5176\u4ed6\u51e0\u9879Wi-Fi\u8054\u76df\u6240\u53d1\u5c55\u7684\u57fa\u7840\u6280\u672f\u4e4b\u4e0a\uff0c\u5305\u62ec\u65e0\u7ebf\u4f20\u8f93\u6280\u672f802.11n(\u76f8\u5bb9\u4e8e\u672a\u6765\u5176\u4ed6\u4f20\u8f93\u89c4\u683c\u5982802.11ac)\u3001\u70b9\u5bf9\u70b9\u8fde\u63a5\u6280\u672f\u7684Wi-Fi Direct\u4e0eTDLS(Tunneled Direct Link Setup)\u3001\u5b89\u5168\u6027\u65b9\u9762\u7684WPA2(Wi-Fi Protected Access 2)\u52a0\u5bc6\u3001\u63d0\u4f9b\u670d\u52a1\u54c1\u8d28(QoS)\u53ca\u6d41\u91cf\u7ba1\u7406\u7684WMM(Wi-Fi Multimedia)\u6280\u672f\u3001\u7701\u7535\u76f8\u5173\u673a\u5236\u7684WMM Power Save\u6280\u672f\uff0c\u4ee5\u53ca\u65b9\u4fbf\u4f7f\u7528\u8005\u914d\u7f6e\u7f51\u8def\u7684WPS(Wi-Fi Protected Setup)\u6280\u672f\u3002<\/span><\/p>\n<p><span style=\"color: #000000;\">\u5728Miracast\u89c4\u683c\u4e2d\uff0c\u5c06\u8bbe\u5907\u5206\u4e3a\u4e24\u7c7b\uff0c\u4e00\u7c7b\u79f0\u4e3a\u4f20\u9001\u7aef(Source)\uff0c\u53e6\u4e00\u7c7b\u79f0\u4e3a\u63a5\u6536\u7aef(Sink)\u3002\u63a5\u6536\u7aef\u53c8\u5206\u4e3a\u4e3b\u63a5\u6536\u7aef(Primary Sink)\u53ca\u6b21\u63a5\u6536\u7aef(Secondary Sink)\uff0c\u5dee\u522b\u5728\u4e8e\u4e3b\u63a5\u6536\u7aef\u80fd\u652f\u63f4\u5f71\u50cf\u6216\u58f0\u97f3\u7684\u8d44\u6599\u8f93\u51fa\uff1b\u800c\u6b21\u63a5\u6536\u7aef\u53ea\u652f\u63f4\u58f0\u97f3\u7684\u8d44\u6599\u8f93\u51fa\uff0c\u8fd9\u6d0b\u7684\u533a\u522b\u662f\u7531\u4e8eMiracast\u63d0\u51fa\u914d\u5bf9\u63a5\u6536\u7aef(Coupled Sink)\u7684\u64cd\u4f5c\u67b6\u6784(\u56fe1)\uff0c\u4f7f\u7528\u8005\u53ef\u9009\u62e9\u5c06\u5f71\u97f3\u5206\u6d41\u81f3\u4e0d\u540c\u8bbe\u5907\u5e76\u540c\u65f6\u5448\u73b0\u5f71\u97f3\u8d44\u8baf\u3002<\/span><\/p>\n<div id=\"attachment_663\" style=\"width: 510px\" class=\"wp-caption aligncenter\"><img aria-describedby=\"caption-attachment-663\" decoding=\"async\" src=\"\/wp-content\/uploads\/2018\/04\/miracast1.jpg\" alt=\"miracast\u6295\u5c4f\u62d3\u6251\u56fe\" width=\"500\" height=\"372\" class=\"wp-image-663 size-full\" srcset=\"https:\/\/www.bijienetworks.com\/wp-content\/uploads\/2018\/04\/miracast1.jpg 500w, https:\/\/www.bijienetworks.com\/wp-content\/uploads\/2018\/04\/miracast1-300x223.jpg 300w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><p id=\"caption-attachment-663\" class=\"wp-caption-text\"><span style=\"color: #000000;\">\u56fe1Miracast\u914d\u5bf9\u63a5\u6536\u7aef\u62d3\u6251\u7ed3\u6784<\/span><\/p><\/div>\n<p><span style=\"color: #000000;\"> \u00a0\u00a0<\/span><span style=\"color: #000000;\">Miracast\u64cd\u4f5c\u7684\u7a0b\u5e8f\uff0c\u5982\u56fe2\u6240\u793a\u3002\u9996\u5148\uff0c\u7531\u4e8eMiracast\u4e5f\u5b9a\u4e49\u670d\u52a1\u641c\u5bfb\u7684\u529f\u80fd\uff0c\u4e0d\u8fc7\u5728\u89c4\u683c\u4e2d\u662f\u9009\u62e9\u6027\u7684\uff0c\u56e0\u6b64\u4f1a\u4ee5Wi-Fi Direct\u5bfb\u627e\u9644\u8fd1\u7684Miracast\u8bbe\u5907\uff0c\u7136\u540e\u5c06\u5bfb\u627e\u7684\u8baf\u606f\u4f20\u8fbe\u7ed9\u4f7f\u7528\u8005\u3002\u4f7f\u7528\u8005\u53ef\u4ee5\u4ece\u5bfb\u627e\u5230\u6216\u662f\u5148\u524d\u8fde\u7ebf\u8fc7\u7684\u8bbe\u5907\u4e2d\uff0c\u9009\u62e9\u60f3\u8981\u8fde\u63a5\u7684\u8bbe\u5907\uff0c\u5efa\u7acb\u597d\u65e0\u7ebf\u8fde\u7ebf\u540e\uff0c\u4e24\u8fb9\u7684\u8bbe\u5907\u4f1a\u8fdb\u884c\u8bbe\u5907\u529f\u80fd\u4e0e\u7f51\u8def\u6761\u4ef6\u7684\u534f\u8c03\uff0c\u4ee5\u9009\u62e9\u8fd9\u5408\u7684\u5f71\u97f3\u4f20\u8f93\u683c\u5f0f\u3002\u5efa\u7acb\u5f71\u97f3\u4e32\u6d41\u7684\u8fde\u7ebf\u534f\u8bae(Session)\u540e\uff0c\u540e\u7eed\u5c31\u662f\u4e00\u8fde\u4e32\u7684\u5373\u65f6\u4e32\u6d41\u534f\u5b9a(RTSP)\u63a7\u5236\u547d\u4ee4\uff0c\u4ee5\u63a7\u5236\u5f71\u97f3\u4e32\u6d41\u7684\u64ad\u653e\u53ca\u7ec8\u6b62\u3002<\/span><\/p>\n<p>&nbsp;<\/p>\n<div id=\"attachment_664\" style=\"width: 510px\" class=\"wp-caption aligncenter\"><img aria-describedby=\"caption-attachment-664\" decoding=\"async\" src=\"\/wp-content\/uploads\/2018\/04\/miracast2.jpg\" alt=\"miracast\u63a7\u5236\u6d41\u7a0b\u56fe\" width=\"500\" height=\"355\" class=\"wp-image-664 size-full\" srcset=\"https:\/\/www.bijienetworks.com\/wp-content\/uploads\/2018\/04\/miracast2.jpg 500w, https:\/\/www.bijienetworks.com\/wp-content\/uploads\/2018\/04\/miracast2-300x213.jpg 300w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><p id=\"caption-attachment-664\" class=\"wp-caption-text\"><span style=\"color: #000000;\">miracast\u63a7\u5236\u6d41\u7a0b\u56fe<\/span><\/p><\/div>\n<p><span style=\"color: #000000;\">\u56fe3\u4e3aMiracast\u7684\u901a\u8baf\u67b6\u6784\u4e2d\u5173\u4e8e\u63a7\u5236\u7684\u90e8\u5206\uff0c\u4ece\u5e95\u5c42\u6765\u770b\u662f\u57fa\u4e8eWi-Fi Direct\u3001TDLS\u53caWPS\u7b49\u65e0\u7ebf\u6280\u672f\u4e0a\u3002\u63a5\u4e0b\u6765\u4f1a\u5206\u4e3a\u4e24\u4e2a\u90e8\u5206\uff0c\u4e00\u90e8\u5206\u662f\u5728\u4e8e\u5f00\u653e\u7cfb\u7edf\u4e92\u8054\u7b2c\u4e8c\u5c42(OSI Layer 2)\uff0c\u4ea6\u5373\u8d44\u6599\u8fde\u7ed3\u5c42(Data Link Layer)\u7684\u64cd\u4f5c\uff0c\u4ee5\u8fdb\u884c\u5bfb\u627e\u8bbe\u5907\u53ca\u5efa\u7acb\u65e0\u7ebf\u8fde\u7ebf\u3002\u53e6\u4e00\u90e8\u5206\u662f\u5728\u65e0\u7ebf\u7f51\u8def\u8fde\u7ebf\u5efa\u7acb\u540e\uff0cTCP\/IP\u5c42\u4e4b\u4e0a\u7684\u63a7\u5236\u547d\u4ee4\uff0c\u5305\u62ec\u4ee5RTSP\u534f\u5b9a\u8fdb\u884c\u8bbe\u5907\u80fd\u529b\u94a9\u901a(Capability Negotiation)\u3001\u5f71\u97f3\u4e32\u6d41\u8fde\u7ebf\u534f\u8bae\u7684\u5efa\u7acb\u4e0e\u7ba1\u7406\u3001\u4f7f\u7528\u8005\u8f93\u5165\u53cd\u5411\u901a\u9053(UIBC\/User Input Back Channel)\u3001\u8fdc\u7aefI2C\u8bfb\u5199(Remote I2C Read\/Write)\u6216\u9ad8\u9891\u5bbd\u6570\u4f4d\u5185\u5bb9\u4fdd\u62a4(High-Bandwidth Digital Content Protection, HDCP)\u63a7\u5236\u8baf\u606f\u7b49\u8d44\u6599\u7684\u4f20\u9001\u3002<\/span><\/p>\n<p>&nbsp;<\/p>\n<div id=\"attachment_665\" style=\"width: 510px\" class=\"wp-caption aligncenter\"><img aria-describedby=\"caption-attachment-665\" decoding=\"async\" src=\"\/wp-content\/uploads\/2018\/04\/miracast3.jpg\" alt=\"miracast\u901a\u8baf\u7ed3\u6784\u63a7\u5236\u56fe\" width=\"500\" height=\"500\" class=\"wp-image-665 size-full\" srcset=\"https:\/\/www.bijienetworks.com\/wp-content\/uploads\/2018\/04\/miracast3.jpg 500w, https:\/\/www.bijienetworks.com\/wp-content\/uploads\/2018\/04\/miracast3-160x160.jpg 160w, https:\/\/www.bijienetworks.com\/wp-content\/uploads\/2018\/04\/miracast3-150x150.jpg 150w, https:\/\/www.bijienetworks.com\/wp-content\/uploads\/2018\/04\/miracast3-300x300.jpg 300w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><p id=\"caption-attachment-665\" class=\"wp-caption-text\"><span style=\"color: #000000;\">\u56fe3miracast\u901a\u8baf\u7ed3\u6784\u63a7\u5236\u56fe<\/span><\/p><\/div>\n<p><span style=\"color: #000000;\">\u5176\u4e2d\uff0cUIBC\u5b9a\u4e49\u5982\u4f55\u5c06\u63a5\u6536\u7aef\u7684\u63a7\u5236\u8baf\u53f7\u56de\u9001\u5230\u4f20\u9001\u7aef\uff0c\u5305\u62ec\u89e6\u63a7\u3001\u6ed1\u9f20\u3001\u952e\u76d8\u3001\u6447\u6746\u7b49\u8bbe\u5907\u4e8b\u4ef6\uff0c\u8ba9\u4f7f\u7528\u8005\u900f\u8fc7\u63a5\u6536\u7aef\u7684\u8f93\u5165\u8bbe\u5907\u56de\u63a7\u4f20\u9001\u7aef\uff1b\u800c\u8fdc\u7aefI2C\u8bfb\u5199\u662f\u8ba9\u4f20\u9001\u7aef\u53ef\u900f\u8fc7TCP\/IP\u8bfb\u5199\u4e00\u4e9b\u63a5\u6536\u7aef\u7684I2C\u8baf\u53f7\uff0c\u5982\u5ef6\u4f38\u663e\u793a\u80fd\u529b\u8bc6\u522b(EDID)\uff0c\u4ee5\u53d6\u5f97\u8baf\u606f\u6216\u8fdb\u884c\u63a7\u5236\uff1bHDCP\u662f\u7531\u82f1\u7279\u5c14\u53d1\u5c55\uff0c\u7528\u4e8e\u4fdd\u62a4\u6570\u4f4d\u5185\u5bb9\u7684\u6280\u672f\uff0c\u4e3b\u8981\u662f\u9632\u6b62\u6570\u4f4d\u5185\u5bb9\u5728\u4f20\u8f93\u7684\u65f6\u5019\u88ab\u76d7\u5f55\uff0c\u5728\u4f20\u9001\u7aef\u53ca\u63a5\u6536\u7aef\u4e4b\u524d\u5efa\u7acb\u4e00\u5957\u52a0\u89e3\u5bc6\u7684\u673a\u5236\uff0c\u5982\u679c\u5728\u4f20\u8f93\u7684\u8fc7\u7a0b\u4e2d\u6709\u4e0d\u652f\u63f4HDCP\u7684\u8bbe\u5907\uff0c\u5219\u88ab\u4fdd\u62a4\u7684\u5f71\u7247\u5c06\u4f1a\u65e0\u6cd5\u663e\u793a\u6216\u88ab\u8feb\u8c03\u964d\u89e3\u6790\u5ea6\u89c2\u770b\u3002\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0cUIBC\u3001\u8fdc\u7aefI2C\u8bfb\u5199\u4e0eHDCP\u7b49Miracast\u6240\u5b9a\u4e49\u7684\u670d\u52a1\u4e0e\u529f\u80fd\uff0c\u5728\u89c4\u683c\u4e2d\u5e76\u975e\u5fc5\u5907\uff0c\u5382\u5546\u53ef\u4f9d\u5e94\u7528\u7684\u9700\u6c42\u6289\u5b9a\u662f\u5426\u5b9e\u4f5c\u3002<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><strong><span style=\"color: #000000;\">Miracast\u5f71\u50cf\/\u58f0\u97f3\u4e32\u6d41\u89c4\u683c\u4e0d\u540c<\/span><\/strong><\/p>\n<p><span style=\"color: #000000;\">Miracast\u89c4\u683c\u5728\u5f71\u50cf\u4e0a\u89c4\u5b9a\u4f7f\u7528ITU-T H.264\u5f71\u50cf\u7f16\u7801\u6f14\u7b97\u6cd5\u8fdb\u884c\u538b\u7f29\uff0c\u4f46\u4e3a\u914d\u5408\u5e94\u7528\u4e0a\u7684\u7279\u6027\uff0c\u6709\u4e9b\u5fae\u7684\u4fee\u6539\uff0c\u820d\u5f03\u6bd4\u8f83\u590d\u6742\u7684\u6280\u672f\uff0c\u5982\u57fa\u7ebf\u534f\u5b9a(Baseline Profile, BP)\u5b9a\u4e49\u7684\u5f39\u6027\u805a\u96c6\u533a\u5757(Flexible Macroblock Ordering, FMO)\u3001\u4efb\u610f\u5207\u7247\u987a\u5e8f(Arbitrary Slice Ordering, ASO)\u3001\u5197\u4f59\u5207\u7247(Redundant Slice, RS)\u53caCBP(Constrained Baseline Profile)\u7b49\u3002\u53e6\u5916\uff0cMiracast\u89c4\u683c\u8fd8\u8c03\u6574HP(High Profile)\u4e2d\u7684\u4e0a\u4e0b\u6587\u81ea\u6211\u8c03\u6574\u4e8c\u8fdb\u4f4d\u7b97\u672f\u7f16\u7801(Context-adaptive Binary Arithmetic Coding, CABAC)\u548cB Slice\uff0c\u6210\u4e3a\u65b0\u7684CHP(Constrained High Profile)\u3002<\/span><\/p>\n<p><span style=\"color: #000000;\">\u6b64\u5916\uff0cMiracast\u5f71\u50cf\u4f20\u8f93\u89c4\u683c\u7ea7\u522b(Level)\u5b9a\u4e49\u57283.1\u52304.2\uff0c\u53ef\u9009\u62e9\u7684\u89e3\u6790\u5ea6\u5305\u62ec\u7f8e\u56fd\u6d88\u8d39\u7535\u5b50\u4ea7\u54c1\u534f\u4f1a(CEA)\u3001\u89c6\u8baf\u7535\u5b50\u6807\u51c6\u534f\u4f1a(VESA)\u53caHH(Handheld)\u6807\u51c6\u4e2d\u6240\u8ba2\u5b9a\u7684\u6570\u5341\u79cd\u89e3\u6790\u5ea6\u7ec4\u5408\uff0c\u6700\u9ad8\u89e3\u6790\u5ea6\u53ca\u66f4\u65b0\u7387\u53ef\u8fbe1,920\u00d71,200 60fps\u3002\u53e6\u5916\uff0cMiracast\u5f71\u50cf\u4f20\u8f93\u89c4\u683c\u4e5f\u6709\u5b9a\u4e49\u4e09\u7ef4(3D)\u5f71\u7247\u683c\u5f0f\uff0c\u5305\u62ecTop &amp; Bottom[Half]\u3001Frame Sequential\u3001Frame Packing\u53caSide by Side[Half]\u7b49\u683c\u5f0f\u3002<\/span><\/p>\n<p><span style=\"color: #000000;\">\u5728\u58f0\u97f3\u7684\u683c\u5f0f\u65b9\u9762\uff0c\u4e3b\u8981\u5b9a\u4e49\u7ebf\u6027\u8109\u51b2\u7f16\u7801\u8c03\u53d8(Linear Pulse-Code Modulation, LPCM)\u3001\u8fdb\u9636\u97f3\u9891\u7f16\u7801(Advanced Audio Coding, AAC)\u53caDolby Advanced Codec 3(AC3)\u4e09\u79cd\u58f0\u97f3\u7f16\u7801\u65b9\u5f0f\uff0c\u53ca\u4e0d\u540c\u7684\u58f0\u9053\u6570\u3001\u91c7\u6837\u7387\u53ca\u6bd4\u7279\u7387\u7b49\u3002<\/span><\/p>\n<p>&nbsp;<\/p>\n<div id=\"attachment_666\" style=\"width: 160px\" class=\"wp-caption alignright\"><img aria-describedby=\"caption-attachment-666\" decoding=\"async\" src=\"\/wp-content\/uploads\/2018\/04\/miracast4.jpg\" alt=\"miracast\u5f71\u97f3\u5904\u7406\u6d41\u7a0b\u56fe\" width=\"150\" height=\"236\" class=\"wp-image-666 size-full\" \/><p id=\"caption-attachment-666\" class=\"wp-caption-text\"><span style=\"color: #000000;\">\u56fe4miracast\u5f71\u97f3\u5904\u7406\u6d41\u7a0b\u56fe<\/span><\/p><\/div>\n<p><span style=\"color: #000000;\">\u56fe4\u4e3aMiracast\u901a\u8baf\u67b6\u6784\u4e2d\u5173\u4e8e\u5f71\u97f3\u8d44\u6599\u5904\u7406\u6d41\u7a0b\u7684\u90e8\u5206\u3002\u6574\u4e2a\u5f71\u97f3\u8d44\u6599\u5904\u7406\u53ca\u4f20\u8f93\u7684\u6d41\u7a0b\uff0c\u5927\u81f4\u4e0a\u5206\u4e3a\u51e0\u4e2a\u9636\u6bb5\uff0c\u4e00\u5f00\u59cb\u5c06\u64b7\u53d6\u5230\u7cfb\u7edf\u7684\u753b\u9762\u53ca\u58f0\u97f3\u8fdb\u884c\u538b\u7f29\uff0c\u800c\u538b\u7f29\u540e\u7684\u5f71\u97f3\u8d44\u6599\u518d\u8f6c\u4e3a\u57fa\u672c\u5c01\u5305\u4e32\u6d41(Packetized Elementary Stream, PES)\u5c01\u5305\u683c\u5f0f\uff0c\u82e5\u5e94\u7528HDCP\uff0c\u4f1a\u5c06\u76f8\u5173\u8d44\u8baf\u52a0\u8fdb\u6765\uff0c\u518d\u4ee5MPEG2-TS\u7684\u65b9\u5f0f\u8fdb\u884c\u5f71\u97f3\u8d44\u6599\u7684\u878d\u5408(Mux)\uff0c\u63a5\u4e0b\u6765\u518d\u52a0\u4e0aRTP\u7684\u6807\u5934(Header)\uff0c\u6700\u540e\u900f\u8fc7UDP\/IP\u7684\u65b9\u5f0f\u4f20\u9001\u3002\u5230\u63a5\u6536\u7aef\u5219\u662f\u53cd\u5411\u7684\u89e3\u5c01\u88c5\u3001\u5206\u5de5(Demux)\u3001HDCP\u89e3\u5bc6\u53ca\u89e3\u538b\u7f29\u540e\uff0c\u5448\u73b0\u5f71\u50cf\u53ca\u58f0\u97f3\u7684\u8d44\u6599\u3002<\/span><\/p>\n<p><span style=\"color: #000000;\">Miracast\u89c4\u683c\u4e2d\u4e5f\u6709\u63d0\u5230\u5efa\u8bae\u7684\u6d41\u91cf\u63a7\u5236\u65b9\u5f0f\u3002\u5728\u7f51\u8def\u4f20\u8f93\u4e0d\u7a33\u5b9a\u7684\u65f6\u5019\uff0c\u53ef\u900f\u8fc7\u6539\u53d8\u538b\u7f29\u7387\u3001\u7565\u8fc7\u753b\u9762\u6216\u805a\u96c6\u533a\u5757\uff0c\u6216\u8005\u900f\u8fc7\u6539\u53d8\u5f71\u97f3\u7f16\u7801\u683c\u5f0f\u7b49\u65b9\u6cd5\u8fbe\u5230\u6d41\u91cf\u7684\u63a7\u5236\uff0c\u4ee5\u7ef4\u6301\u5f71\u97f3\u64ad\u653e\u7684\u6d41\u7545\u6027\u3002<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><strong><span style=\"color: #000000;\">\u955c\u50cf\u6280\u672f\u5e94\u7528\u8303\u7574\u5e7f<\/span><\/strong><\/p>\n<p><span style=\"color: #000000;\">\u672c\u6587\u8bf4\u660eMiracast\u7684\u6d41\u7a0b\u53ca\u67b6\u6784\u540e\uff0c\u5c06\u8fdb\u4e00\u6b65\u8ba8\u8bba\u955c\u50cf\u6280\u672f\u7684\u76f8\u5173\u5e94\u7528\uff0c\u56e0\u6b64\u5e76\u4e0d\u5c40\u9650\u5728Miracast\u7684\u89c4\u8303\u5185\u3002\u9664\u57fa\u672c\u7684\u5c0f\u5c4f\u5e55\u955c\u50cf\u5230\u5927\u5c4f\u5e55\u7684\u5f71\u97f3\u591a\u5a92\u4f53\u5e94\u7528\u5916\uff0c\u955c\u50cf\u6280\u672f\u8fd8\u53ef\u53d1\u5c55\u51fa\u8bb8\u591a\u79cd\u4e0d\u540c\u7684\u53d8\u5f62\u5e94\u7528\uff0c\u5982\u53ef\u6269\u5c55\u5230\u4e00\u5bf9\u591a\u7684\u5e94\u7528\uff0c\u4ea6\u5373\u4f1a\u8bae\u4e2d\u53ef\u5c06\u95f4\u62a5\u4f20\u9001\u5230\u5176\u4ed6\u4e0e\u4f1a\u8005\u7684\u4e2a\u4eba\u8bbe\u5907\uff0c\u4e5f\u53ef\u628a\u6587\u4ef6\u7684\u5206\u4eab\u6574\u5408\uff0c\u8ba9\u4e0e\u4f1a\u8005\u80fd\u540c\u65f6\u5728\u6587\u4ef6\u4e0a\u8fdb\u884c\u534f\u4f5c\u7f16\u8f91\uff0c\u4f1a\u8bae\u7ed3\u675f\u540e\u80fd\u5c06\u7eaa\u5f55\u50a8\u5b58\u4e8e\u4e0e\u4f1a\u8005\u7684\u4e2a\u4eba\u8bbe\u5907\u3002\u5728\u6559\u5b66\u7684\u5e94\u7528\u73af\u5883\u4e2d\uff0c\u6559\u5b66\u8005\u80fd\u5c06\u753b\u9762\u4f20\u9001\u5230\u5b66\u751f\u7684\u8bbe\u5907\uff0c\u6216\u662f\u5c06\u6559\u5b66\u8005\u6216\u7279\u5b9a\u5b66\u751f\u7684\u753b\u9762\u4f20\u9001\u5230\u7535\u5b50\u767d\u677f\u4e0a\u3002<\/span><\/p>\n<p><span style=\"color: #000000;\">\u53e6\u5916\u7684\u53d8\u5f62\u5e94\u7528\u662f\u4f7f\u7528\u955c\u50cf\u6280\u672f\u5c06\u4e2a\u4eba\u8bbe\u5907\u7684\u5ef6\u4f38\u753b\u9762\u4f20\u9001\u5230\u8fdc\u7aef\u5c4f\u5e55\uff0c\u8fdb\u800c\u548c\u539f\u6709\u7684\u8bbe\u5907\u8fdb\u884c\u7279\u6b8a\u7684\u4e92\u52a8\u5e94\u7528\uff0c\u4f8b\u5982\u5c06\u6e38\u620f\u753b\u9762\u6295\u5c04\u5728\u9ad8\u89e3\u6790\u5ea6\u7684\u7535\u89c6\u4e0a\uff0c\u624b\u673a\u4e0a\u5219\u663e\u793a\u4e0e\u4f7f\u7528\u8005\u4e92\u52a8\u7684\u63a7\u5236\u5668\u753b\u9762\u3002\u9664\u6b64\u4e4b\u5916\uff0c\u7ed3\u5408UIBC\u7684\u6280\u672f\uff0c\u53ef\u8fbe\u5230BYOD(Bring Your Own Device)\u7684\u6982\u5ff5\uff0c\u6d88\u8d39\u8005\u4f7f\u7528\u81ea\u5df1\u7684\u667a\u6167\u578b\u8bbe\u5907\u505a\u4e3a\u4e00\u53f0\u53ef\u643a\u5f0f\u7684\u4e3b\u673a\uff0c\u5728\u529e\u516c\u5ba4\u53ea\u987b\u51c6\u5907\u5c4f\u5e55\u53ca\u8f93\u5165\u8bbe\u5907\u540e\uff0c\u5c31\u80fd\u8f7b\u9b06\u7684\u529e\u516c\uff0c\u4e5f\u6bcb\u987b\u62c5\u5fc3\u7684\u8d44\u6599\u7684\u540c\u6b65\u3001\u4f20\u8f93\u7684\u5b89\u5168\u6027\u53ca\u5de5\u4f5c\u73af\u5883\u7684\u673a\u52a8\u6027\u4e4b\u7c7b\u7684\u95ee\u9898\u3002<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><strong><span style=\"color: #000000;\">Wi-Fi\u89c4\u8303\u652f\u6301 Miracast\u5e02\u573a\u53d1\u5c55\u524d\u666f\u53ef\u671f<\/span><\/strong><\/p>\n<p><span style=\"color: #000000;\">Miracast\u662f\u4e00\u9879\u65b0\u7684Wi-Fi\u8054\u76df\u8ba4\u8bc1\u9879\u76ee\uff0c\u900f\u8fc7\u65e2\u6709Wi-Fi\u65e0\u7ebf\u901a\u8baf\u6280\u672f\u7684\u7ed3\u5408\uff0c\u5b8c\u6210\u5305\u62ec\u7535\u89c6\u3001\u673a\u4e0a\u76d2\u3001\u6295\u5f71\u673a\u3001\u667a\u6167\u578b\u624b\u673a\u3001\u5e73\u677f\u8bbe\u5907\u53ca\u7b14\u8bb0\u578b\u7535\u8111\u7b49\u6d88\u8d39\u7c7b\u7535\u5b50\u8bbe\u5907\u7684\u4e92\u52a8\uff0c\u5c06\u56fe\u7247\u3001\u6587\u5b57\u3001\u58f0\u97f3\u4e0e\u5f71\u50cf\u5185\u5bb9\u751a\u81f3\u662f\u66f4\u591a\u7684\u670d\u52a1\u5e94\u7528\u753b\u9762\u5728\u4e0d\u540c\u8bbe\u5907\u95f4\u5171\u4eab\uff0c\u517c\u5177\u9ad8\u54c1\u8d28\u4e0e\u4fbf\u5229\u6027\uff0c\u8ba9\u4f7f\u7528\u8005\u514d\u9664\u8fde\u63a5\u7ebf\u6750\u4e0e\u8f6c\u6362\u5668\u7684\u70e6\u607c\uff0c\u4ee5\u65e0\u7ebf\u7684\u65b9\u5f0f\u5206\u4eab\u624b\u4e2d\u7684\u4e30\u5bcc\u5185\u5bb9\u3002<\/span><\/p>\n<p><span style=\"color: #000000;\">\u4ece\u6700\u8fd1\u51e0\u6b21\u7684\u6d88\u8d39\u6027\u7535\u5b50\u5c55(CES)\u6216\u5168\u7403\u884c\u52a8\u901a\u8baf\u5927\u4f1a(MWC)\uff0c\u53ef\u4ee5\u770b\u51fa\u955c\u50cf\u6280\u672f\u662f\u5404\u5bb6\u5927\u5382\u60f3\u63a8\u51fa\u7684\u4e00\u9879\u4eae\u70b9\u6280\u672f\uff0c\u4f46\u662f\u8bbe\u5907\u4e92\u901a\u6027\u4e00\u76f4\u662f\u5f88\u91cd\u8981\u7684\u95ee\u9898\uff0c\u82e5\u662f\u72ec\u5360\u6027\u592a\u9ad8\u7684\u4ea7\u54c1\uff0c\u4e0d\u5bb9\u6613\u628a\u5e02\u573a\u505a\u5927\u3002Miracast\u4e3aWi-Fi\u8054\u76df\u6811\u7acb\u7684\u4e00\u4e2a\u5171\u901a\u6807\u51c6\uff0c\u4e14\u80fd\u88ab\u5927\u591a\u6570\u7684\u5382\u5546\u63a1\u7528\uff0c\u6709\u5f88\u9ad8\u7684\u4e92\u901a\u6027\uff0c\u5c06\u662f\u8be5\u6280\u672f\u6210\u529f\u7684\u5173\u952e\u3002<\/span><\/p>\n<p><span style=\"color: #000000;\">\u53e6\u5916\uff0c\u955c\u50cf\u6280\u672f\u7684\u53d8\u5f62\u5e94\u7528\uff0c\u4e5f\u662f\u672a\u6765\u53ef\u9884\u89c1\u7684\u4e00\u79cd\u8d8b\u52bf\uff0c\u5bb6\u5ead\u3001\u529e\u516c\u5ba4\u3001\u884c\u52a8\u901a\u8baf\u4ee5\u53ca\u6559\u5b66\u73af\u5883\u7b49\u5404\u573a\u57df\u7684\u9700\u6c42\uff0c\u884d\u751f\u51fa\u4e00\u5bf9\u591a\u3001\u5ef6\u4f38\u684c\u9762\u3001UIBC\u7b49\u6280\u672f\u7684\u5e94\u7528\uff0c\u5c06\u80fd\u4e3a\u751f\u6d3b\u5e26\u6765\u8bb8\u591a\u6709\u8da3\u7684\u4f53\u9a8c\u3002<span>\u5fc5\u6377\u7f51\u7edc\u63d0\u4f9b\u5b8c\u5584\u7684<\/span><a href=\"\/solutions\/wirelessdisplaysdk\/\"><strong>\u65e0\u7ebf\u6295\u5c4fSDK<\/strong>\u8f6f\u4ef6\u65b9\u6848<\/a><span>\uff0c<strong>Miracast SDK<\/strong>\u3001<strong>AirPlay SDK<\/strong>\u3001PC\u7aef\u65e0\u7ebf\u6295\u5c4f\u3001\u79fb\u52a8\u7aef\u65e0\u7ebf\u6295\u5c4f\uff0c\u90fd\u53ef\u4ee5\u6839\u636e\u5ba2\u6237\u9700\u6c42\u5b9a\u5236\u5f00\u53d1\uff0c\u6b22\u8fce\u54a8\u8be2\uff01<\/span><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u968f\u8457\u79fb\u52a8\u8bbe\u5907\u7684\u666e\u53ca\uff0c\u76f8\u5173\u7684\u5e94\u7528\u670d\u52a1\u5df2\u4e0e\u5927\u591a\u6570\u4eba\u7684\u65e5\u5e38\u751f\u6d3b\u5bc6\u4e0d\u53ef\u5206\u3002\u5728\u5fae\u8f6f(Microsoft)\u63d0\u51fa\u7684 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[25,26],"tags":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.bijienetworks.com\/wp-json\/wp\/v2\/posts\/662"}],"collection":[{"href":"https:\/\/www.bijienetworks.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bijienetworks.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bijienetworks.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bijienetworks.com\/wp-json\/wp\/v2\/comments?post=662"}],"version-history":[{"count":0,"href":"https:\/\/www.bijienetworks.com\/wp-json\/wp\/v2\/posts\/662\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.bijienetworks.com\/wp-json\/wp\/v2\/media?parent=662"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bijienetworks.com\/wp-json\/wp\/v2\/categories?post=662"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bijienetworks.com\/wp-json\/wp\/v2\/tags?post=662"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}