{"id":177,"date":"2022-11-03T13:36:56","date_gmt":"2022-11-03T05:36:56","guid":{"rendered":"http:\/\/192.168.98.190\/wp\/?page_id=177"},"modified":"2022-11-08T14:48:17","modified_gmt":"2022-11-08T06:48:17","slug":"mqtt-2","status":"publish","type":"page","link":"http:\/\/www.accutherm-iot.com\/wp\/?page_id=177","title":{"rendered":"MQTT"},"content":{"rendered":"\n<h6 class=\"has-palette-color-2-color has-text-color wp-block-heading\">MQTT\u4e3a\u8ba2\u9605\/\u53d1\u5e03\u6a21\u5f0f\u7684\u901a\u8baf\u534f\u8bae\uff0c\u6570\u636e\u6548\u7387\u9ad8\u3002\u5e94\u7528\u4e8e\u5b9e\u9a8c\u5ba4\uff0c\u8f66\u95f4\u7b49\u9700\u8981\u5927\u91cf\uff0c\u5bc6\u96c6\uff0c\u6570\u636e\u91c7\u96c6\u548c\u6574\u5408\u63a7\u5236<\/h6>\n\n\n\t\t\t\t\t\t<style>\r\n\t\t\t\t\r\n\t\t\t\t\t#tab_container_194 {\r\n\toverflow:hidden;\r\n\tdisplay:block;\r\n\twidth:100%;\r\n\tborder:0px solid #ddd;\r\n\tmargin-bottom:30px;\r\n\t}\r\n\r\n#tab_container_194 .tab-content{\r\n\tpadding:20px;\r\n\tborder: 1px solid #e6e6e6 !important;\r\n\tmargin-top: 0px;\r\n\tbackground-color:#ffffff !important;\r\n\tcolor: #000000 !important;\r\n\tfont-size:16px !important;\r\n\tfont-family: Open Sans !important;\r\n\t\r\n\t\tborder: 1px solid #e6e6e6 !important;\r\n\t}\r\n#tab_container_194 .wpsm_nav-tabs {\r\n    border-bottom: 0px solid #ddd;\r\n}\r\n#tab_container_194 .wpsm_nav-tabs > li.active > a, #tab_container_194 .wpsm_nav-tabs > li.active > a:hover, #tab_container_194 .wpsm_nav-tabs > li.active > a:focus {\r\n\tcolor: #000000 !important;\r\n\tcursor: default;\r\n\tbackground-color: #9ac7dc !important;\r\n\tborder: 1px solid #81aec3 !important;\r\n}\r\n\r\n#tab_container_194 .wpsm_nav-tabs > li > a {\r\n    margin-right: 0px !important; \r\n    line-height: 1.42857143 !important;\r\n    border: 1px solid #d5d5d5 !important;\r\n    border-radius: 0px 0px 0 0 !important; \r\n\tbackground-color: #e8e8e8 !important;\r\n\tcolor: #000000 !important;\r\n\tpadding: 15px 18px 15px 18px !important;\r\n\ttext-decoration: none !important;\r\n\tfont-size: 16px !important;\r\n\ttext-align:center !important;\r\n\tfont-family: Open Sans !important;\r\n}\r\n#tab_container_194 .wpsm_nav-tabs > li > a:focus {\r\noutline: 0px !important;\r\n}\r\n\r\n#tab_container_194 .wpsm_nav-tabs > li > a:before {\r\n\tdisplay:none !important;\r\n}\r\n#tab_container_194 .wpsm_nav-tabs > li > a:after {\r\n\tdisplay:none !important ;\r\n}\r\n#tab_container_194 .wpsm_nav-tabs > li{\r\npadding:0px !important ;\r\nmargin:0px;\r\n}\r\n\r\n#tab_container_194 .wpsm_nav-tabs > li > a:hover , #tab_container_194 .wpsm_nav-tabs > li > a:focus {\r\n    color: #000000 !important;\r\n    background-color: #e8e8e8 !important;\r\n\tborder: 1px solid #d5d5d5 !important;\r\n\t\r\n}\r\n#tab_container_194 .wpsm_nav-tabs > li > a .fa{\r\n\r\nmargin-right:5px !important;\r\n\r\nmargin-left:5px !important;\r\n\r\n\r\n}\r\n\r\n\t\t#tab_container_194 .wpsm_nav-tabs a{\r\n\t\t\tbackground-image: none;\r\n\t\t\tbackground-position: 0 0;\r\n\t\t\tbackground-repeat: repeat-x;\r\n\t\t}\r\n\t\t\t\r\n\r\n\r\n#tab_container_194 .wpsm_nav-tabs > li {\r\n    float: left;\r\n    margin-bottom: -1px !important;\r\n\tmargin-right:0px !important; \r\n}\r\n\r\n\r\n#tab_container_194 .tab-content{\r\noverflow:hidden !important;\r\n}\r\n\r\n\r\n@media (min-width: 769px) {\r\n\r\n\t#tab_container_194 .wpsm_nav-tabs > li{\r\n\t\tfloat:left !important ;\r\n\t\t\t\tmargin-right:-1px !important;\r\n\t\t\t\t\t}\r\n\t#tab_container_194 .wpsm_nav-tabs{\r\n\t\tfloat:none !important;\r\n\t\tmargin:0px !important;\r\n\t}\r\n\r\n\t#tab_container_194 .wpsm_nav-tabs > li {\r\n\t\t\t\t\r\n\t}\r\n\t#tab_container_194 .wpsm_nav{\r\n\t\t\t}\r\n\r\n}\r\n\r\n\r\n\r\n@media (max-width: 768px) {\r\n\t#tab_container_194 .wpsm_nav-tabs > li {\r\n\t\t\t\t\r\n\t}\r\n\t#tab_container_194 .wpsm_nav{\r\n\t\t\t}\r\n}\r\n\r\n\r\n\t.wpsm_nav-tabs li:before{\r\n\t\tdisplay:none !important;\r\n\t}\r\n\r\n\t@media (max-width: 768px) {\r\n\t\t\t\t\r\n\t\t\t\t.wpsm_nav-tabs{\r\n\t\t\tmargin-left:0px !important;\r\n\t\t\tmargin-right:0px !important; \r\n\t\t\t\r\n\t\t}\r\n\t\t\t\t#tab_container_194 .wpsm_nav-tabs > li{\r\n\t\t\tfloat:none !important;\r\n\t\t}\r\n\t\t\t\r\n\t}\t\t\t\t<\/style>\r\n\t\t\t\t<div id=\"tab_container_194\" >\r\n\t \r\n\t\t\t\t\t<ul class=\"wpsm_nav wpsm_nav-tabs\" role=\"tablist\" id=\"myTab_194\">\r\n\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t<li role=\"presentation\"  class=\"active\"  onclick=\"do_resize()\">\r\n\t\t\t\t\t\t\t\t<a href=\"#tabs_desc_194_1\" aria-controls=\"tabs_desc_194_1\" role=\"tab\" data-toggle=\"tab\">\r\n\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<i class=\"fa fa-laptop\"><\/i> \t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t<span>\u89c4\u683c<\/span>\r\n\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t<\/a>\r\n\t\t\t\t\t\t\t<\/li>\r\n\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t<li role=\"presentation\"  onclick=\"do_resize()\">\r\n\t\t\t\t\t\t\t\t<a href=\"#tabs_desc_194_2\" aria-controls=\"tabs_desc_194_2\" role=\"tab\" data-toggle=\"tab\">\r\n\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<i class=\"fa fa-laptop\"><\/i> \t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t<span>\u4ea7\u54c1<\/span>\r\n\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t<\/a>\r\n\t\t\t\t\t\t\t<\/li>\r\n\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t<li role=\"presentation\"  onclick=\"do_resize()\">\r\n\t\t\t\t\t\t\t\t<a href=\"#tabs_desc_194_3\" aria-controls=\"tabs_desc_194_3\" role=\"tab\" data-toggle=\"tab\">\r\n\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<i class=\"fa fa-laptop\"><\/i> \t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t<span>\u6587\u4ef6<\/span>\r\n\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t<\/a>\r\n\t\t\t\t\t\t\t<\/li>\r\n\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t<li role=\"presentation\"  onclick=\"do_resize()\">\r\n\t\t\t\t\t\t\t\t<a href=\"#tabs_desc_194_4\" aria-controls=\"tabs_desc_194_4\" role=\"tab\" data-toggle=\"tab\">\r\n\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<i class=\"fa fa-laptop\"><\/i> \t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t<span>\u6848\u4f8b\u5c55\u793a<\/span>\r\n\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t<\/a>\r\n\t\t\t\t\t\t\t<\/li>\r\n\t\t\t\t\t\t\t\t\t\t\t <\/ul>\r\n\r\n\t\t\t\t\t  <!-- Tab panes -->\r\n\t\t\t\t\t  <div class=\"tab-content\" id=\"tab-content_194\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t <div role=\"tabpanel\" class=\"tab-pane  in active \" id=\"tabs_desc_194_1\">\r\n\t\t\t\t\t\t\t\t<h6><strong><span style=\"color: #0000ff\">\u8bbe\u5907\u7aef\uff1a<\/span><\/strong><\/h6>\r\n<table style=\"height: 342px\" width=\"996\">\r\n<tbody>\r\n<tr>\r\n<td>\r\n<h6><strong>Server\u7aef\u901a\u8baf\u534f\u8bae<\/strong><\/h6>\r\n<\/td>\r\n<td class=\"has-text-align-center\" data-align=\"center\">\r\n<h6><strong>MQTT<\/strong><\/h6>\r\n<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>\r\n<h6><strong>\u8bbe\u5907\u7aef\u901a\u8baf\u534f\u8bae<\/strong><\/h6>\r\n<\/td>\r\n<td class=\"has-text-align-center\" data-align=\"center\">\r\n<h6><strong>Modbus RTU\uff0c Modubs TCP\uff0cASCII\uff0cCanBus\uff0c Lora\uff0cNBIot<\/strong><\/h6>\r\n<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>\r\n<h6><strong>\u8bbe\u5907\u7aef\u901a\u8baf\u786c\u4f53<\/strong><\/h6>\r\n<\/td>\r\n<td class=\"has-text-align-center\" data-align=\"center\">\r\n<h6><strong>RS232\uff0c RS485\uff0cCanBus, \u4ee5\u592a\u7f51\u53e3\uff0cWifi\uff0cSPI\uff0c I2C<\/strong><\/h6>\r\n<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>\r\n<h6><strong>\u4f20\u611f\u5668<\/strong><\/h6>\r\n<\/td>\r\n<td class=\"has-text-align-center\" data-align=\"center\">\r\n<h6><strong>PT100\uff0cK\u578b\u70ed\u7535\u5076\uff0c0-5V\uff0c 4-20mA\uff0c\u4ee5\u53ca\u5404\u7c7b\u652f\u6301SPI\uff0cI2C\u534f\u8bae\u7684\u4f20\u611f\u5668,\u534f\u8bae\u7684\u4f20\u611f\u5668.\u5982\u6e7f\u5ea6\uff0c\u5149\u7167\uff0c\u538b\u529b\u7b49<\/strong><\/h6>\r\n<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>\r\n<h6><strong>\u624b\u673a\u8b66\u62a5<\/strong><\/h6>\r\n<\/td>\r\n<td class=\"has-text-align-center\" data-align=\"center\">\r\n<h6><strong>\u9489\u9489\uff0c\u4f01\u4e1a\u5fae\u4fe1\uff0cLine\uff0c\u77ed\u4fe1\u62a5\u8b66<\/strong><\/h6>\r\n<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>\r\n<h6><strong>\u63a7\u5236\u5668<\/strong><\/h6>\r\n<\/td>\r\n<td class=\"has-text-align-center\" data-align=\"center\">\r\n<h6><strong>U8256\uff0cU8226, U9256\uff0cU9226\uff0cU5461, \u5e86\u58f0\uff0cTemi<\/strong><\/h6>\r\n<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>\r\n<h6><strong>\u8bb0\u5f55\u4eea<\/strong><\/h6>\r\n<\/td>\r\n<td class=\"has-text-align-center\" data-align=\"center\">\r\n<h6><strong>VM7000\uff0c RM1006C<\/strong><\/h6>\r\n<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>\r\n<h6><strong>\u4e91\u5e73\u53f0<\/strong><\/h6>\r\n<\/td>\r\n<td class=\"has-text-align-center\" data-align=\"center\">\r\n<h6><strong>\u79c1\u6709\u4e91\uff0c\u963f\u91cc\u4e91\uff0c\u4e9a\u9a6c\u900a\u4e91\uff0cIBM\u4e91<\/strong><\/h6>\r\n<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<h6><span style=\"color: #0000ff\">\u670d\u52a1\u5668\u7aef<\/span><\/h6>\r\n<table style=\"border-collapse: collapse;width: 774.77pt\" border=\"0\" width=\"1033\" cellspacing=\"0\" cellpadding=\"0\">\r\n<tbody>\r\n<tr style=\"height: 18.00pt\">\r\n<td class=\"et2\" style=\"height: 18.00pt;width: 188.25pt\" width=\"251\" height=\"24\">\r\n<h6><strong>\u6570\u636e\u5e93<\/strong><\/h6>\r\n<\/td>\r\n<td class=\"et2\" style=\"width: 586.50pt\" width=\"782\">\r\n<h6><strong>MySQL<\/strong><\/h6>\r\n<\/td>\r\n<\/tr>\r\n<tr style=\"height: 18.00pt\">\r\n<td class=\"et2\" style=\"height: 18.00pt\" height=\"24\">\r\n<h6><strong>Web Server<\/strong><\/h6>\r\n<\/td>\r\n<td class=\"et2\">\r\n<h6><strong>Nginx<\/strong><\/h6>\r\n<\/td>\r\n<\/tr>\r\n<tr style=\"height: 18.00pt\">\r\n<td class=\"et2\" style=\"height: 18.00pt\" height=\"24\">\r\n<h6><strong>MQTT Broker<\/strong><\/h6>\r\n<\/td>\r\n<td class=\"et2\">\r\n<h6><strong>Mosquitto<\/strong><\/h6>\r\n<\/td>\r\n<\/tr>\r\n<tr style=\"height: 18.00pt\">\r\n<td class=\"et2\" style=\"height: 18.00pt\" height=\"24\">\r\n<h6><strong>OS<\/strong><\/h6>\r\n<\/td>\r\n<td class=\"et2\">\r\n<h6><strong>Linux<\/strong><\/h6>\r\n<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\t\t\t\t\t\t <\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\t <div role=\"tabpanel\" class=\"tab-pane \" id=\"tabs_desc_194_2\">\r\n\t\t\t\t\t\t\t\t<ul>\r\n \t<li>\r\n<h6><span style=\"color: #0000ff\">\u00a0\u5b9e\u9a8c\u5ba4\u591a\u673a\u6574\u5408\u7cfb\u7edf<\/span><\/h6>\r\n<\/li>\r\n<\/ul>\r\n\r\n<hr \/>\r\n\r\n<h6><em><span style=\"color: #0000ff\">\u4f7f\u7528\u573a\u666f \uff1a<\/span><\/em> \u5b9e\u9a8c\u5ba4\u6709\u591a\u79cd\u8bbe\u5907\uff0c\u5982\u6052\u6e29\u6052\u6e7f\u7bb1\uff0c\u51b7\u70ed\u51b2\u51fb\u7bb1\uff0c\u70d8\u7bb1\uff0c\u5149\u7167\uff0c\u7c89\u5c18\uff0c\u55b7\u6dcb\u7b49\u3002\u6bcf\u79cd\u8bbe\u5907\u7684\u901a\u8baf\u63a5\u53e3\u548c\u534f\u8bae\u90fd\u4e0d\u540c\uff0c\u5982\u4f55\u505a\u4e2d\u592e\u76d1\u63a7\uff0c\u5728\u4e00\u4e2a\u7cfb\u7edf\u770b\u5230\u5b9e\u9a8c\u5ba4\u6240\u6709\u8bbe\u5907\u7684\u5b9e\u9a8c\u72b6\u51b5\uff0c\u5e76\u4e14\u53ef\u4ee5\u8fdc\u7aef\u63a7\u5236\uff1f<\/h6>\r\n\r\n<hr \/>\r\n\r\n<h6><em><span style=\"color: #0000ff\">\u8f6f\u786c\u4ef6\u89e3\u51b3\u65b9\u6848\uff1a<\/span><\/em> IOT\u6a21\u5757\u8fde\u63a5\u8bbe\u5907\u7684\u4e32\u53e3\u6216\u7f51\u53e3\uff0c\u5c06\u5373\u65f6\u7684\u5b9e\u9a8c\u6570\u636e\uff0c\u4ece\u8bbe\u5907\u901a\u8baf\u7ed3\u6784\u53d6\u5f97\u6570\u636e\uff0c\u5e76\u89e3\u6790\u6210JSON\u683c\u5f0f\u540e\uff0cIOT\u6a21\u5757\u7ecf\u7531MQTT\u53d1\u9001\u5230\u670d\u52a1\u5668\u5373\u65f6\u663e\u793a\u5e76\u50a8\u5b58\u5728\u6570\u636e\u5e93\uff0c\u518d\u7528\u53ef\u89c6\u5316\u5de5\u5177\u7ed8\u56fe\u3002\u5982\u6e29\u6e7f\u5ea6\u66f2\u7ebf\u56fe<\/h6>\r\n\r\n<hr \/>\r\n\r\n<h6><em><span style=\"color: #0000ff\">\u901a\u8baf\u652f\u6301\uff1a<\/span><\/em><\/h6>\r\n<h6>1 \uff1a \u4e32\u53e3 RS232\uff0cRS485\uff0c\u4ee5\u592a\u7f51\uff0c Canbus<\/h6>\r\n<h6>2\uff1a Modbus RTU\uff0c Modbus TCP\uff0cASCII\uff0cCanbus<\/h6>\t\t\t\t\t\t <\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\t <div role=\"tabpanel\" class=\"tab-pane \" id=\"tabs_desc_194_3\">\r\n\t\t\t\t\t\t\t\t<ol>\r\n \t<li>\r\n<h5><a 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