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padding: 0px; word-wrap: break-word; letter-spacing: 0.5px; font-size: 16px; text-indent: 2em; color: rgb(51, 51, 51) !important; line-height: 30px !important; font-family: &quot;Microsoft yahei&quot;, \u5fae\u8f6f\u96c5\u9ed1 !important;\">\n\t\u2461TCP\u670d\u52a1\u5668\u6a21\u5f0f\u4e3a\u7ed1\u5b9a\u7aef\u53e3\u8303\u56f4\u4e3a1025\uff5e65535;<\/p>\n<p style=\"margin: 0px 0px 12px; padding: 0px; word-wrap: break-word; letter-spacing: 0.5px; font-size: 16px; text-indent: 2em; color: rgb(51, 51, 51) !important; line-height: 30px !important; font-family: &quot;Microsoft yahei&quot;, \u5fae\u8f6f\u96c5\u9ed1 !important;\">\n\t\u2462TCP\u5ba2\u6237\u7aef\u6a21\u5f0f\u4e3a\u9700\u914d\u7f6e\u76ee\u6807\u670d\u52a1\u5668IP\u3001\u7aef\u53e3\u53ca\u81ea\u52a8\u91cd\u8fde\u65f6\u95f4\uff0c\u5176\u4e2d\u81ea\u52a8\u91cd\u8fde\u65f6\u95f4\u6307\u7f51\u7edc\u8fde\u63a5\u4e2d\u65ad\u6216\u8005\u670d\u52a1\u5668\u5f02\u5e38\u65f6\uff0c\u91cd\u65b0\u53d1\u8d77\u4e3b\u52a8\u8fde\u63a5\u7684\u65f6\u95f4\u95f4\u9694\uff0c\u5faa\u73af\u81ea\u52a8\u91cd\u8fde\u76f4\u5230\u6b63\u5e38\u8fde\u63a5\u4e0a\u4e3a\u6b62;<\/p>\n<p style=\"margin: 0px 0px 12px; padding: 0px; word-wrap: break-word; letter-spacing: 0.5px; font-size: 16px; text-indent: 2em; color: rgb(51, 51, 51) !important; line-height: 30px !important; font-family: &quot;Microsoft yahei&quot;, \u5fae\u8f6f\u96c5\u9ed1 !important;\">\n\t\u2463UDP\u5e7f\u64ad\u6a21\u5f0f\u4e3a\u9700\u914d\u7f6e\u672c\u5730\u7aef\u53e3\u3001\u76ee\u6807\u670d\u52a1\u5668IP\u548c\u76ee\u6807\u7aef\u53e3\u3002<\/p>\n<p style=\"margin: 0px 0px 12px; padding: 0px; word-wrap: break-word; letter-spacing: 0.5px; font-size: 16px; text-indent: 2em; color: rgb(51, 51, 51) !important; line-height: 30px !important; font-family: &quot;Microsoft yahei&quot;, \u5fae\u8f6f\u96c5\u9ed1 !important;\">\n\t2 \u786c\u4ef6\u8bbe\u8ba1<\/p>\n<p style=\"margin: 0px 0px 12px; padding: 0px; word-wrap: break-word; letter-spacing: 0.5px; font-size: 16px; text-indent: 2em; color: rgb(51, 51, 51) !important; line-height: 30px !important; font-family: &quot;Microsoft yahei&quot;, \u5fae\u8f6f\u96c5\u9ed1 !important;\">\n\t\u6b64\u4e32\u53e3\u670d\u52a1\u5668\u6839\u636e\u4ee5\u4e0a\u6307\u6807\u9009\u7528\u6700\u65b0\u7684\u6811\u8393\u6d3e\u3001USB-hub\u53ca\u5317\u4eac\u4e16\u7eaa\u8054\u4fe1\u516c\u53f8\u751f\u4ea7\u7684USB\/\u56db\u4e32\u53e3\u8f6c\u6362\u5668\u7ec4\u5408\u800c\u6210\u3002<\/p>\n<p style=\"margin: 0px 0px 12px; padding: 0px; word-wrap: break-word; letter-spacing: 0.5px; font-size: 16px; text-indent: 2em; color: rgb(51, 51, 51) !important; line-height: 30px !important; font-family: &quot;Microsoft yahei&quot;, \u5fae\u8f6f\u96c5\u9ed1 !important;\">\n\t2.1 \u786c\u4ef6\u7ed3\u6784\u7ec4\u6210<\/p>\n<p style=\"margin: 0px 0px 12px; padding: 0px; word-wrap: break-word; letter-spacing: 0.5px; font-size: 16px; text-indent: 2em; color: rgb(51, 51, 51) !important; line-height: 30px !important; font-family: &quot;Microsoft yahei&quot;, \u5fae\u8f6f\u96c5\u9ed1 !important;\">\n\t\u4e32\u53e3\u670d\u52a1\u5668\u786c\u4ef6\u7ed3\u6784\u7ec4\u6210\u5982\u56fe1\u6240\u793a\uff0c\u6811\u8393\u6d3e\u5177\u6709\u4e24\u4e2aUSB\u63a5\u53e3\u3001\u4e00\u4e2aTTL\u4e32\u53e3\u53ca\u4e00\u4e2a10\/100 MHz\u81ea\u9002\u5e94\u4ee5\u592a\u7f51\u63a5\u53e3\u3002\u4e00\u4e2aUSB\u63a5\u53e3\u901a\u8fc7USB-hub\u548cn(\u53ef\u636e\u60c5\u51b5\u9009\u62e9\uff0c\u6700\u591a\u65f6n=4)\u4e2aUSB\/\u4e32\u53e3\u8f6c\u6362\u5668\u6269\u5c55\u51fa4n\u4e2aRS232\/RS422\/RS455\u4e32\u53e3\uff0c\u53e6\u4e00\u4e2a\u53ef\u5916\u63a5\u65e0\u7ebfUSB\u7f51\u5361\uff0c\u4ece\u800c\u5b9e\u73b0\u5c40\u57df\u7f51\u6216\u5e7f\u57df\u7f51\u4e2d\u6709\u7ebf\u6216\u65e0\u7ebf\u6570\u636e\u4f20\u8f93\u3002<\/p>\n<p align=\"center\" style=\"margin: 0px 0px 12px; padding: 0px; word-wrap: break-word; letter-spacing: 0.5px; font-size: 16px; color: rgb(51, 51, 51) !important; line-height: 30px !important; font-family: &quot;Microsoft yahei&quot;, \u5fae\u8f6f\u96c5\u9ed1 !important;\">\n\t<img decoding=\"async\" alt=\"\u57fa\u4e8e\u6811\u8393\u6d3e\u7684\u4e32\u53e3\u670d\u52a1\u5668\u8bbe\u8ba1\" src=\"http:\/\/www.szryc.com\/uploads\/allimg\/190527\/16462C5V-0.jpg\" style=\"border: 0px; vertical-align: middle; cursor: pointer; margin: 0px auto; display: block; max-width: 100%; border-radius: 2px; width: 465px; height: 316px;\" \/><\/p>\n<p style=\"margin: 0px 0px 12px; padding: 0px; word-wrap: break-word; letter-spacing: 0.5px; font-size: 16px; text-indent: 2em; color: rgb(51, 51, 51) !important; line-height: 30px !important; font-family: &quot;Microsoft yahei&quot;, \u5fae\u8f6f\u96c5\u9ed1 !important;\">\n\t\u56fe1 \u786c\u4ef6\u7ed3\u6784\u6846\u56fe<\/p>\n<p style=\"margin: 0px 0px 12px; padding: 0px; word-wrap: break-word; letter-spacing: 0.5px; font-size: 16px; text-indent: 2em; color: rgb(51, 51, 51) !important; line-height: 30px !important; font-family: &quot;Microsoft yahei&quot;, \u5fae\u8f6f\u96c5\u9ed1 !important;\">\n\t2.2 \u6811\u8393\u6d3e\u7b80\u4ecb<\/p>\n<p style=\"margin: 0px 0px 12px; padding: 0px; word-wrap: break-word; letter-spacing: 0.5px; font-size: 16px; text-indent: 2em; color: rgb(51, 51, 51) !important; line-height: 30px !important; font-family: &quot;Microsoft yahei&quot;, \u5fae\u8f6f\u96c5\u9ed1 !important;\">\n\t\u6811\u8393\u6d3e(Raspberry&nbsp;<u>Pi<\/u>)\u662f\u4e00\u6b3e\u57fa\u4e8eLinux\u7cfb\u7edf\u7684\u53ea\u6709\u4e00\u5f20\u4fe1\u7528\u5361\u5927\u5c0f\u7684\u5355\u677f\u8ba1\u7b97\u673a\uff0c\u914d\u5907\u4e00\u679a<u>\u535a\u901a<\/u>\u751f\u4ea7\u7684700 MHzARM\u67b6\u6784BCM2835\u5904\u7406\u5668\uff0c512 MB\u5185\u5b58\uff0c\u4f7f\u7528SD\u5361\u5f53\u4f5c\u5b58\u50a8\u4ecb\u8d28\uff0c\u64cd\u4f5c\u7cfb\u7edf\u91c7\u7528\u5f00\u6e90\u7684Linux\u7cfb\u7edf\uff0c\u63d0\u4f9b\u5e76\u652f\u6301<u>Python<\/u>\u4f5c\u4e3a\u4e3b\u8981\u7f16\u7a0b\u8bed\u8a00\u3002<\/p>\n<p style=\"margin: 0px 0px 12px; padding: 0px; word-wrap: break-word; letter-spacing: 0.5px; font-size: 16px; text-indent: 2em; color: rgb(51, 51, 51) !important; line-height: 30px !important; font-family: &quot;Microsoft yahei&quot;, \u5fae\u8f6f\u96c5\u9ed1 !important;\">\n\t2.3 USB-hub\u7b80\u4ecb<\/p>\n<p style=\"margin: 0px 0px 12px; padding: 0px; word-wrap: break-word; letter-spacing: 0.5px; font-size: 16px; text-indent: 2em; color: rgb(51, 51, 51) !important; line-height: 30px !important; font-family: &quot;Microsoft yahei&quot;, \u5fae\u8f6f\u96c5\u9ed1 !important;\">\n\tUSB-hub(USB\u96c6\u7ebf\u5668)\u662f\u4e00\u4e2a\u5c06\u591a\u4e2aUSB\u8bbe\u5907\u8fde\u63a5\u5230\u8ba1\u7b97\u673a\u4e0a\u7684USB\u63a5\u53e3\u6216\u53e6\u4e00\u4e2aUSB\u96c6\u7ebf\u5668\u4e0a\u67d0\u65f6\u5019\uff0c\u5b83\u4eec\u90fd\u6765\u81ea\u4e8e\u4e3b\u677f\u5185\u90e8\u4e00\u4e2a\u6216\u8005\u4e24\u4e2a\u4e3bUSB\u63a5\u53e3\uff0c\u800c\u4e0d\u662f\u76f8\u4e92\u72ec\u7acb\u7684\u786c\u4ef6\u3002\u4e00\u4e2aUSB\u63a5\u53e3\u3001\u4e00\u4e2aUSB\u96c6\u7ebf\u5668\u548c\u82e5\u5e72\u4e2a\u5916\u56f4\u8bbe\u5907\u53ef\u4ee5\u6784\u5efa\u4e00\u4e2aUSB\u7f51\u7edc\u3002\u672c\u7cfb\u7edf\u9009\u7528\u7684USB-hub\u7531\u4e00\u4e2aUSB\u63a5\u53e3\u6269\u5c55\u51fa4\u4e2aUSB\u63a5\u53e3\u3002<\/p>\n<p style=\"margin: 0px 0px 12px; padding: 0px; word-wrap: break-word; letter-spacing: 0.5px; font-size: 16px; text-indent: 2em; color: rgb(51, 51, 51) !important; line-height: 30px !important; font-family: &quot;Microsoft yahei&quot;, \u5fae\u8f6f\u96c5\u9ed1 !important;\">\n\t2.4 USB\/\u4e32\u53e3\u8f6c\u6362\u5668\u7b80\u4ecb<\/p>\n<p style=\"margin: 0px 0px 12px; padding: 0px; word-wrap: break-word; letter-spacing: 0.5px; font-size: 16px; text-indent: 2em; color: rgb(51, 51, 51) !important; line-height: 30px !important; font-family: &quot;Microsoft yahei&quot;, \u5fae\u8f6f\u96c5\u9ed1 !important;\">\n\tUSB\/\u4e32\u53e3\u8f6c\u6362\u5668\u9009\u7528\u5317\u4eac\u4e16\u7eaa\u8054\u4fe1LENSYS-USB2COM-4\u6a21\u5757\u3002\u5b83\u662f\u4e00\u79cd\u5bfc\u8f68\u5b89\u88c5\u5f0f\u4e32\u53e3\u6269\u5c55\u6a21\u5757\uff0c\u5b9e\u73b0\u4e86\u7528USB\u53e3\u6269\u5c554\u4e32\u53e3\u7684\u529f\u80fd\uff0c\u53ef\u4ee5\u901a\u8fc7USB\u5feb\u901f\u6269\u5c55\u56db\u4e2a\u8ba1\u7b97\u673a\u4e32\u53e3\uff0c\u901a\u8fc7\u62e8\u7801\u5f00\u5173\u8bbe\u5b9aRS 232\/422\/485\u63a5\u53e3\u65b9\u5f0f\uff0c\u8fd8\u53ef\u4ee5\u5b9e\u73b04\u4e2aRS 232\u8f6c4\u4e2aRS422\/485\u7684\u529f\u80fd\u3002\u901a\u8fc7\u8be5\u6a21\u5757\u80fd\u591f\u53ef\u9760\u3001\u5b9e\u65f6\u3001\u4fbf\u6377\u5730\u5b8c\u6210\u5de5\u4e1a\u73b0\u573aRS232\/485\/422\u4fe1\u53f7\u7684\u4f20\u8f93\u548c\u8f6c\u6362\uff0c\u5e7f\u6cdb\u5e94\u7528\u4e8e\u77f3\u6cb9\u5929\u7136\u6c14\u3001\u6c34\u5229\u3001\u7535\u529b\u8c03\u5ea6\u3001\u5e02\u653f\u8c03\u5ea6\u7b49\u884c\u4e1a\u3002<\/p>\n<p style=\"margin: 0px 0px 12px; 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letter-spacing: 0.5px; font-size: 16px; text-indent: 2em; color: rgb(51, 51, 51) !important; line-height: 30px !important; font-family: &quot;Microsoft yahei&quot;, \u5fae\u8f6f\u96c5\u9ed1 !important;\">\n\tTCP\u534f\u8bae\u4f20\u8f93\u7a0b\u5e8f\u6d89\u53ca\u5230\u670d\u52a1\u5668\u7aef\u548c\u5ba2\u6237\u7aef\u7684\u8bbe\u8ba1\u3002<\/p>\n<p style=\"margin: 0px 0px 12px; padding: 0px; word-wrap: break-word; letter-spacing: 0.5px; font-size: 16px; text-indent: 2em; color: rgb(51, 51, 51) !important; line-height: 30px !important; font-family: &quot;Microsoft yahei&quot;, \u5fae\u8f6f\u96c5\u9ed1 !important;\">\n\t\u670d\u52a1\u5668\u7aef\u7a0b\u5e8f\u8bbe\u8ba1\uff1a<\/p>\n<p style=\"margin: 0px 0px 12px; padding: 0px; word-wrap: break-word; letter-spacing: 0.5px; font-size: 16px; text-indent: 2em; color: rgb(51, 51, 51) !important; line-height: 30px !important; font-family: &quot;Microsoft yahei&quot;, \u5fae\u8f6f\u96c5\u9ed1 !important;\">\n\t\u2460\u5efa\u7acb\u4e00\u4e2asocket\uff0c\u9009\u62e9\u7c7b\u578bINET\u53caTCP\u8fde\u63a5\u65b9\u5f0f;<\/p>\n<p style=\"margin: 0px 0px 12px; padding: 0px; word-wrap: break-word; letter-spacing: 0.5px; font-size: 16px; text-indent: 2em; color: rgb(51, 51, 51) !important; line-height: 30px !important; font-family: &quot;Microsoft yahei&quot;, \u5fae\u8f6f\u96c5\u9ed1 !important;\">\n\t\u2461\u8bfb\u53d6\u914d\u7f6e\u7aef\u53e3\u8fdb\u884c\u7ed1\u5b9a\u76d1\u542c\uff0c\u7b49\u5f85\u5ba2\u6237\u7aef\u4e3b\u52a8\u8fde\u63a5;<\/p>\n<p style=\"margin: 0px 0px 12px; padding: 0px; word-wrap: break-word; letter-spacing: 0.5px; font-size: 16px; text-indent: 2em; color: rgb(51, 51, 51) !important; line-height: 30px !important; font-family: &quot;Microsoft yahei&quot;, \u5fae\u8f6f\u96c5\u9ed1 !important;\">\n\t\u2462\u8bbe\u7f6e\u76d1\u542c\u961f\u5217\u5927\u5c0f;<\/p>\n<p style=\"margin: 0px 0px 12px; padding: 0px; word-wrap: break-word; letter-spacing: 0.5px; font-size: 16px; text-indent: 2em; color: rgb(51, 51, 51) !important; line-height: 30px !important; font-family: &quot;Microsoft yahei&quot;, \u5fae\u8f6f\u96c5\u9ed1 !important;\">\n\t\u2463\u8fdb\u5165\u4e00\u4e2a\u65e0\u9650\u5faa\u73af\uff0c\u4f7f\u7528accept()\u7b49\u5f85\u5ba2\u6237\u8fde\u63a5\uff0c\u8fd4\u56de\u7684\u65b0\u8fde\u63a5\u5bf9\u5e94\u4e8e\u5ba2\u6237\u7aefIP\uff0c\u5efa\u7acb\u901a\u4fe1\u4fe1\u9053;<\/p>\n<p style=\"margin: 0px 0px 12px; 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padding: 0px; word-wrap: break-word; letter-spacing: 0.5px; font-size: 16px; text-indent: 2em; color: rgb(51, 51, 51) !important; line-height: 30px !important; font-family: &quot;Microsoft yahei&quot;, \u5fae\u8f6f\u96c5\u9ed1 !important;\">\n\t\u2461\u8bfb\u53d6\u914d\u7f6e\u6240\u914d\u7f6e\u8fdc\u7a0b\u670d\u52a1\u5668IP\u53ca\u7aef\u53e3;<\/p>\n<p style=\"margin: 0px 0px 12px; padding: 0px; word-wrap: break-word; letter-spacing: 0.5px; font-size: 16px; text-indent: 2em; color: rgb(51, 51, 51) !important; line-height: 30px !important; font-family: &quot;Microsoft yahei&quot;, \u5fae\u8f6f\u96c5\u9ed1 !important;\">\n\t\u2462\u8fdb\u5165\u65e0\u9650\u5faa\u73af\uff0c\u4f7f\u7528connect()\u8fde\u63a5\u8fdc\u7a0b\u670d\u52a1\u5668\uff0c\u82e5\u8fde\u4e0d\u4e0a\uff0c\u8fbe\u5230\u6240\u914d\u7f6e\u8d85\u65f6\u95f4\u9694\u540e\u518d\u6b21\u91cd\u8fde;<\/p>\n<p style=\"margin: 0px 0px 12px; padding: 0px; word-wrap: break-word; letter-spacing: 0.5px; font-size: 16px; text-indent: 2em; color: rgb(51, 51, 51) !important; line-height: 30px !important; font-family: &quot;Microsoft yahei&quot;, \u5fae\u8f6f\u96c5\u9ed1 !important;\">\n\t\u2463\u8fde\u63a5\u6210\u529f\u540e\u8fdb\u5165\u65e0\u9650\u5b50\u5faa\u73af\uff0c\u901a\u8fc7sendall()\u53carecv()\u8fdb\u884c\u8bfb\u5199\u64cd\u4f5c\u3002<\/p>\n<p style=\"margin: 0px 0px 12px; padding: 0px; word-wrap: break-word; letter-spacing: 0.5px; font-size: 16px; text-indent: 2em; color: rgb(51, 51, 51) !important; line-height: 30px !important; font-family: &quot;Microsoft yahei&quot;, \u5fae\u8f6f\u96c5\u9ed1 !important;\">\n\t3.3.2 UDP\u534f\u8bae\u4f20\u8f93\u7a0b\u5e8f\u8bbe\u8ba1<\/p>\n<p style=\"margin: 0px 0px 12px; padding: 0px; word-wrap: break-word; letter-spacing: 0.5px; font-size: 16px; text-indent: 2em; color: rgb(51, 51, 51) !important; line-height: 30px !important; font-family: &quot;Microsoft yahei&quot;, \u5fae\u8f6f\u96c5\u9ed1 !important;\">\n\tUDP\u4f20\u8f93\u79f0\u4e3a\u65e0\u8fde\u63a5\u4f20\u8f93\uff0c\u4e0d\u5b58\u5728TCP\u4e2d\u7684\u4e09\u6b21\u63e1\u624b\u548c\u9519\u8bef\u91cd\u4f20\u673a\u5236\uff0c\u5176\u4f20\u8f93\u7a0b\u5e8f\u9700\u540c\u65f6\u8bfb\u53d6\u6240\u914d\u7f6e\u7684\u672c\u5730IP\u548c\u7aef\u53e3\u3001\u8fdc\u7a0bIP\u548c\u7aef\u53e3\uff0c\u5efa\u7acb\u6570\u636e\u62a5\u5f62\u5f0f\u7684socket\u540e\u53ef\u540c\u65f6\u4f5c\u4e3a\u53d1\u9001\u7aef\u548c\u63a5\u6536\u7aef\u3002\u4f5c\u4e3a\u53d1\u9001\u7aef\u65f6\uff0csendto()\u53d1\u9001\u5730\u5740\u4e3a\u8fdc\u7a0b\u63a5\u6536\u7aefIP\u548c\u7aef\u53e3\uff0c\u4f5c\u4e3a\u63a5\u6536\u7aef\u65f6\u516c\u5f00\u672c\u5730IP\u548c\u7aef\u53e3\uff0crecvf<u>rom<\/u>()\u7b49\u5f85\u8fdc\u7a0b\u53d1\u9001\u7aef\u7684\u6570\u636e\u5230\u6765\uff0c\u53ef\u4ee5\u63a5\u6536\u4efb\u4f55\u5730\u5740\u53d1\u9001\u8fc7\u6765\u7684\u6570\u636e\u5305\u3002<\/p>\n<p style=\"margin: 0px 0px 12px; 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