{"id":120187,"date":"2026-10-31T06:57:00","date_gmt":"2026-10-30T22:57:00","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/120187.html"},"modified":"2026-10-31T06:57:00","modified_gmt":"2026-10-30T22:57:00","slug":"bt%e4%b8%8d%e5%8f%aa%e6%98%af%e8%93%9d%e7%89%99%ef%bc%9a%e4%b8%80%e6%a0%b92-4ghz%e7%9a%84%e6%97%a0%e7%ba%bf%e7%bc%9d%e5%90%88%e7%ba%bf%ef%bc%8c%e5%a6%82%e4%bd%95%e6%8a%8a%e8%80%b3","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/120187.html","title":{"rendered":"BT\u4e0d\u53ea\u662f\u84dd\u7259\uff1a\u4e00\u68392.4GHz\u7684\u201c\u65e0\u7ebf\u7f1d\u5408\u7ebf\u201d\uff0c\u5982\u4f55\u628a\u8033\u673a\u3001\u952e\u9f20\u548cIoT\u7f1d\u8fdb\u540c\u4e00\u4e2aWPAN"},"content":{"rendered":"<p>\u5728\u901a\u4fe1\u9886\u57df&#xff0c;BT \u6700\u5e38\u89c1\u7684\u542b\u4e49\u662f Bluetooth&#xff0c;\u5373\u201c\u84dd\u7259\u201d\u3002\u5b83\u662f\u4e00\u79cd\u5168\u7403\u901a\u7528\u7684\u77ed\u8ddd\u79bb\u65e0\u7ebf\u901a\u4fe1\u6280\u672f\u6807\u51c6&#xff0c;\u65e8\u5728\u53d6\u4ee3\u77ed\u8ddd\u79bb\u5185\u7684\u7ebf\u7f06\u8fde\u63a5&#xff0c;\u5b9e\u73b0\u8bbe\u5907\u95f4\u65b9\u4fbf\u3001\u7075\u6d3b\u3001\u5b89\u5168\u4e14\u4f4e\u6210\u672c\u7684\u6570\u636e\u4e0e\u8bed\u97f3\u901a\u4fe1\u3002<\/p>\n<hr \/>\n<h4>&#x1f4dc; \u540d\u79f0\u7684\u7531\u6765\u4e0e\u57fa\u672c\u5b9a\u4f4d<\/h4>\n<p>\u201c\u84dd\u7259\u201d\u8fd9\u4e2a\u540d\u5b57\u6e90\u4e8e10\u4e16\u7eaa\u7684\u4e39\u9ea6\u56fd\u738b\u54c8\u62c9\u5c14\u00b7\u84dd\u7259&#xff08;Harald Bluetooth&#xff09;&#xff0c;\u4ed6\u4ee5\u7edf\u4e00\u4e86\u5206\u88c2\u7684\u4e39\u9ea6\u548c\u632a\u5a01\u800c\u95fb\u540d\u3002\u5c06\u5176\u7528\u4f5c\u6280\u672f\u540d\u79f0&#xff0c;\u5bd3\u610f\u662f\u5e0c\u671b\u8fd9\u9879\u6280\u672f\u80fd\u6210\u4e3a\u7edf\u4e00\u5404\u79cd\u8bbe\u5907\u901a\u4fe1\u7684\u901a\u7528\u6807\u51c6\u3002<\/p>\n<p>\u5728\u6280\u672f\u5b9a\u4f4d\u4e0a&#xff0c;\u84dd\u7259\u5de5\u4f5c\u57282.4GHz\u7684ISM&#xff08;\u5de5\u4e1a\u3001\u79d1\u5b66\u548c\u533b\u7597&#xff09;\u514d\u6388\u6743\u9891\u6bb5&#xff0c;\u8fd9\u662f\u4e00\u79cd\u5168\u7403\u901a\u7528\u7684\u9891\u6bb5&#xff0c;\u65e0\u9700\u7533\u8bf7\u8bb8\u53ef\u5373\u53ef\u4f7f\u7528\u3002\u5b83\u7684\u5178\u578b\u901a\u4fe1\u8ddd\u79bb\u572810\u7c73\u5de6\u53f3&#xff0c;\u65e8\u5728\u6784\u5efa\u65e0\u7ebf\u4e2a\u4eba\u533a\u57df\u7f51&#xff08;WPAN&#xff09;&#xff0c;\u5c06\u624b\u673a\u3001\u8033\u673a\u3001\u7535\u8111\u3001\u4f20\u611f\u5668\u7b49\u4e2a\u4eba\u8eab\u8fb9\u7684\u8bbe\u5907\u8fde\u63a5\u8d77\u6765\u3002<\/p>\n<hr \/>\n<h4>\u2699\ufe0f \u6838\u5fc3\u6280\u672f\u4e0e\u5de5\u4f5c\u539f\u7406<\/h4>\n<p>\u84dd\u7259\u6280\u672f\u7684\u7a33\u5065\u6027\u6e90\u4e8e\u51e0\u9879\u5173\u952e\u8bbe\u8ba1&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u8df3\u9891\u6269\u9891&#xff08;FHSS&#xff09;&#xff1a;\u8fd9\u662f\u84dd\u7259\u6297\u5e72\u6270\u7684\u6838\u5fc3\u3002\u5b83\u4e0d\u4f1a\u56fa\u5b9a\u5728\u4e00\u4e2a\u9891\u7387\u4e0a\u901a\u4fe1&#xff0c;\u800c\u662f\u4ee5\u6bcf\u79d21600\u6b21\u7684\u901f\u7387&#xff0c;\u57282.4GHz\u9891\u6bb5\u5185\u7684\u591a\u4e2a\u4fe1\u9053\u4e4b\u95f4\u5feb\u901f\u8df3\u53d8\u3002\u5373\u4f7f\u67d0\u4e2a\u9891\u7387\u53d7\u5230\u5e72\u6270&#xff0c;\u4fe1\u53f7\u4e5f\u80fd\u8fc5\u901f\u5207\u6362\u5230\u5176\u4ed6\u5e72\u51c0\u7684\u4fe1\u9053&#xff0c;\u4fdd\u8bc1\u4e86\u8fde\u63a5\u7684\u7a33\u5b9a\u6027\u3002<\/p>\n<\/li>\n<li>\n<p>\u7f51\u7edc\u62d3\u6251&#xff1a;\u5fae\u5fae\u7f51&#xff08;Piconet&#xff09;&#xff1a;\u8fd9\u662f\u84dd\u7259\u7f51\u7edc\u7684\u57fa\u672c\u5355\u5143\u3002\u4e00\u4e2a\u5fae\u5fae\u7f51\u7531\u4e00\u53f0\u4e3b\u8bbe\u5907&#xff08;Master&#xff09; \u548c\u6700\u591a7\u53f0\u6d3b\u52a8\u7684\u4ece\u8bbe\u5907&#xff08;Slave&#xff09; \u7ec4\u6210&#xff0c;\u4e3b\u8bbe\u5907\u8d1f\u8d23\u534f\u8c03\u901a\u4fe1\u3002\u591a\u4e2a\u5728\u7a7a\u95f4\u4e0a\u91cd\u53e0\u7684\u5fae\u5fae\u7f51\u53ef\u4ee5\u8fdb\u4e00\u6b65\u7ec4\u6210\u66f4\u590d\u6742\u7684\u6563\u5c04\u7f51&#xff08;Scatternet&#xff09; \u3002<\/p>\n<\/li>\n<\/ul>\n<hr \/>\n<h4>&#x1f500; \u4e24\u6761\u6280\u672f\u8def\u7ebf&#xff1a;\u7ecf\u5178\u84dd\u7259\u4e0e\u4f4e\u529f\u8017\u84dd\u7259<\/h4>\n<p>\u73b0\u4ee3\u84dd\u7259\u6280\u672f\u5b9e\u9645\u4e0a\u5305\u542b\u4e86\u4e24\u6761\u5e76\u884c\u53d1\u5c55\u7684\u6280\u672f\u8def\u7ebf&#xff0c;\u5b83\u4eec\u670d\u52a1\u4e8e\u4e0d\u540c\u7684\u76ee\u6807&#xff1a;<\/p>\n<table>\n<tr>\u7279\u6027\u7ecf\u5178\u84dd\u7259 (Classic Bluetooth \/ BR\/EDR)\u4f4e\u529f\u8017\u84dd\u7259 (Bluetooth Low Energy \/ BLE)<\/tr>\n<tbody>\n<tr>\n<td>\u6838\u5fc3\u76ee\u6807<\/td>\n<td>\u9ad8\u541e\u5410\u91cf\u3001\u6301\u7eed\u8fde\u63a5<\/td>\n<td>\u6781\u4f4e\u529f\u8017\u3001\u95f4\u6b47\u6027\u8fde\u63a5<\/td>\n<\/tr>\n<tr>\n<td>\u4e3b\u8981\u5e94\u7528<\/td>\n<td>\u65e0\u7ebf\u97f3\u9891\u4e32\u6d41&#xff08;\u8033\u673a\u3001\u97f3\u7bb1&#xff09;\u3001\u6587\u4ef6\u4f20\u8f93\u3001\u8f66\u8f7d\u514d\u63d0<\/td>\n<td>IoT\u4f20\u611f\u5668\u3001\u4fe1\u6807\u3001\u667a\u80fd\u5bb6\u5c45\u3001\u5065\u5eb7\u76d1\u6d4b\u3001\u4f4d\u7f6e\u670d\u52a1<\/td>\n<\/tr>\n<tr>\n<td>\u4fe1\u9053\u6570\u91cf<\/td>\n<td>79\u4e2a&#xff0c;\u95f4\u8ddd1MHz<\/td>\n<td>40\u4e2a&#xff0c;\u95f4\u8ddd2MHz<\/td>\n<\/tr>\n<tr>\n<td>\u6570\u636e\u901f\u7387<\/td>\n<td>\u6700\u9ad8\u53ef\u8fbe 3 Mb\/s (EDR)<\/td>\n<td>\u6700\u9ad8 2 Mb\/s (LE 2M PHY)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>BLE \u7684\u51fa\u73b0\u662f\u84dd\u7259\u6280\u672f\u7684\u4e00\u4e2a\u5206\u6c34\u5cad\u3002\u5b83\u5e76\u975e\u7ecf\u5178\u84dd\u7259\u7684\u7b80\u5355\u5347\u7ea7&#xff0c;\u800c\u662f\u4e3a\u7269\u8054\u7f51&#xff08;IoT&#xff09;\u573a\u666f\u4e13\u95e8\u8bbe\u8ba1\u7684\u8d85\u4f4e\u529f\u8017\u534f\u8bae\u3002\u8bb8\u591a\u73b0\u4ee3\u84dd\u7259\u82af\u7247\u662f\u201c\u53cc\u6a21\u201d\u7684&#xff0c;\u53ef\u4ee5\u540c\u65f6\u652f\u6301\u7ecf\u5178\u84dd\u7259\u548cBLE\u3002<\/p>\n<hr \/>\n<h4>&#x1f680; \u5173\u952e\u7248\u672c\u6f14\u8fdb\u4e0e\u529f\u80fd\u98de\u8dc3<\/h4>\n<p>\u84dd\u7259\u7248\u672c\u6301\u7eed\u8fed\u4ee3&#xff0c;\u6bcf\u6b21\u90fd\u5e26\u6765\u4e86\u5173\u952e\u80fd\u529b\u7684\u63d0\u5347&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u84dd\u7259 2.0 &#043; EDR (2004)&#xff1a;\u5f15\u5165\u589e\u5f3a\u6570\u636e\u901f\u7387&#xff08;EDR&#xff09;&#xff0c;\u5c06\u901f\u7387\u4ece1.0\u65f6\u4ee3\u7684\u7ea6721kbps\u63d0\u5347\u81f33Mbps&#xff0c;\u5e76\u964d\u4f4e\u4e86\u529f\u8017\u3002<\/p>\n<\/li>\n<li>\n<p>\u84dd\u7259 3.0 &#043; HS (2009)&#xff1a;\u5f15\u5165\u9ad8\u901f&#xff08;HS&#xff09; \u6280\u672f&#xff0c;\u53ef\u8c03\u7528\u8bbe\u5907\u7684802.11&#xff08;Wi-Fi&#xff09;\u5c04\u9891\u8fdb\u884c\u6570\u636e\u4f20\u8f93&#xff0c;\u5cf0\u503c\u901f\u7387\u9ad8\u8fbe24Mbps&#xff0c;\u4f46\u4ec5\u7528\u4e8e\u5927\u6570\u636e\u4f20\u8f93&#xff0c;\u8fde\u63a5\u63a7\u5236\u4ecd\u7531\u84dd\u7259\u8d1f\u8d23\u3002<\/p>\n<\/li>\n<li>\n<p>\u84dd\u7259 4.0 (2010)&#xff1a;\u91cc\u7a0b\u7891\u5f0f\u7248\u672c&#xff0c;\u5f15\u5165\u4e86\u4f4e\u529f\u8017\u84dd\u7259&#xff08;BLE&#xff09;&#xff0c;\u5c06\u529f\u8017\u964d\u81f3\u7ecf\u5178\u84dd\u7259\u7684\u5341\u5206\u4e4b\u4e00\u5de6\u53f3&#xff0c;\u4e3a\u53ef\u7a7f\u6234\u548cIoT\u8bbe\u5907\u6253\u5f00\u4e86\u5927\u95e8\u3002<\/p>\n<\/li>\n<li>\n<p>\u84dd\u7259 5.0 (2016)&#xff1a;\u9762\u5411\u7269\u8054\u7f51\u4f18\u5316&#xff0c;\u663e\u8457\u63d0\u5347\u4e86\u4f20\u8f93\u8ddd\u79bb&#xff08;\u7406\u8bba\u4e0a\u53ef\u8fbe4\u500d&#xff09;\u3001\u6570\u636e\u901f\u7387&#xff08;2\u500d&#xff09;\u548c\u5e7f\u64ad\u6d88\u606f\u5bb9\u91cf&#xff08;8\u500d&#xff09;\u3002<\/p>\n<\/li>\n<li>\n<p>\u540e\u7eed\u589e\u5f3a&#xff1a;\u84dd\u72595.1\u5f15\u5165\u4e86\u5bfb\u5411&#xff08;Direction Finding&#xff09; \u529f\u80fd&#xff0c;\u4f7f\u5ba4\u5185\u5b9a\u4f4d\u7cbe\u5ea6\u8fbe\u5230\u5398\u7c73\u7ea7&#xff1b;\u84dd\u72595.2\/5.4\u5219\u5e26\u6765\u4e86LE Audio&#xff08;\u542bAuracast\u5e7f\u64ad\u97f3\u9891&#xff09;\u548cPAwR&#xff08;\u5e26\u54cd\u5e94\u7684\u5468\u671f\u6027\u5e7f\u64ad&#xff09;\u7b49\u9762\u5411\u591a\u8bbe\u5907\u97f3\u9891\u5171\u4eab\u548c\u5927\u89c4\u6a21\u4f20\u611f\u5668\u7f51\u7edc\u7684\u65b0\u7279\u6027\u3002<\/p>\n<\/li>\n<\/ul>\n<hr \/>\n<h4>&#x1f4e1; \u4e3b\u8981\u5e94\u7528\u573a\u666f<\/h4>\n<p>\u84dd\u7259\u6280\u672f\u7684\u5e94\u7528\u5df2\u4ece\u6700\u521d\u7684\u97f3\u9891\u5916\u8bbe&#xff0c;\u6269\u5c55\u5230\u6781\u4e3a\u5e7f\u6cdb\u7684\u9886\u57df&#xff1a;<\/p>\n<li>\n<p>\u65e0\u7ebf\u97f3\u9891&#xff1a;\u8fd9\u662f\u84dd\u7259\u6700\u6210\u719f\u548c\u6700\u5927\u7684\u5e94\u7528\u5e02\u573a&#xff0c;\u4eceTWS\u8033\u673a\u3001\u4fbf\u643a\u97f3\u7bb1\u5230\u8f66\u8f7d\u5a31\u4e50\u7cfb\u7edf&#xff0c;\u7ecf\u5178\u84dd\u7259\u548cLE Audio\u90fd\u5728\u6b64\u626e\u6f14\u6838\u5fc3\u89d2\u8272\u3002<\/p>\n<\/li>\n<li>\n<p>\u6570\u636e\u4f20\u8f93\u4e0e\u5916\u56f4\u8bbe\u5907&#xff1a;\u9f20\u6807\u3001\u952e\u76d8\u3001\u6253\u5370\u673a\u3001\u6e38\u620f\u624b\u67c4\u7b49\u901a\u8fc7\u84dd\u7259\u4e0e\u4e3b\u673a\u8fde\u63a5&#xff0c;\u6446\u8131\u7ebf\u7f06\u675f\u7f1a\u3002<\/p>\n<\/li>\n<li>\n<p>\u7269\u8054\u7f51\u4e0e\u667a\u80fd\u5bb6\u5c45&#xff1a;BLE\u662f\u8fde\u63a5\u667a\u80fd\u706f\u6ce1\u3001\u95e8\u9501\u3001\u4f20\u611f\u5668\u548c\u53ef\u7a7f\u6234\u8bbe\u5907\u7684\u4e3b\u6d41\u6280\u672f\u3002Bluetooth Mesh\u5219\u8fdb\u4e00\u6b65\u652f\u6301\u5927\u89c4\u6a21\u8bbe\u5907\u7ec4\u7f51&#xff0c;\u9002\u7528\u4e8e\u697c\u5b87\u81ea\u52a8\u5316\u7b49\u573a\u666f\u3002<\/p>\n<\/li>\n<li>\n<p>\u4f4d\u7f6e\u670d\u52a1&#xff1a;\u57fa\u4e8eBLE\u7684\u4fe1\u6807&#xff08;Beacon&#xff09; \u6280\u672f\u5e7f\u6cdb\u7528\u4e8e\u5ba4\u5185\u5bfc\u822a\u3001\u8d44\u4ea7\u8ffd\u8e2a\u548c\u5730\u6807\u63a8\u9001\u3002<\/p>\n<\/li>\n<li>\n<p>\u6c7d\u8f66\u4e0e\u5de5\u4e1a&#xff1a;\u7528\u4e8e\u8f66\u8f7d\u514d\u63d0\u901a\u8bdd\u3001\u8fdc\u7a0b\u8bca\u65ad\u3001\u65e0\u94a5\u5319\u8fdb\u5165\u7cfb\u7edf&#xff0c;\u4ee5\u53ca\u5de5\u4e1a\u73af\u5883\u4e2d\u7684\u65e0\u7ebf\u4f20\u611f\u5668\u76d1\u63a7\u548c\u8bbe\u5907\u63a7\u5236\u3002<\/p>\n<\/li>\n<hr \/>\n<h4>&#x1f4a1; \u5176\u4ed6\u53ef\u80fd\u7684\u542b\u4e49<\/h4>\n<p>\u5728\u7279\u5b9a\u7684\u901a\u4fe1\u6216\u5546\u4e1a\u8bed\u5883\u4e0b&#xff0c;BT \u4e5f\u53ef\u80fd\u6307\u4ee3&#xff1a;<\/p>\n<ul>\n<li>\n<p>British 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