{"id":12851,"date":"2022-07-22T05:58:08","date_gmt":"2022-07-22T05:58:08","guid":{"rendered":"https:\/\/www.taosdata.com\/?p=12851"},"modified":"2023-02-10T03:38:43","modified_gmt":"2023-02-10T03:38:43","slug":"tdengine-%e5%8a%a9%e5%8a%9b%e8%a5%bf%e9%97%a8%e5%ad%90%e8%bd%bb%e9%87%8f%e7%ba%a7%e6%95%b0%e5%ad%97%e5%8c%96%e8%a7%a3%e5%86%b3%e6%96%b9%e6%a1%88-simicas-%e7%ae%80%e5%8c%96%e6%95%b0%e6%8d%ae%e5%a4%84","status":"publish","type":"post","link":"https:\/\/www.taosdata.com\/tdengine-user-cases\/12851.html","title":{"rendered":"TDengine \u52a9\u529b\u897f\u95e8\u5b50\u8f7b\u91cf\u7ea7\u6570\u5b57\u5316\u89e3\u51b3\u65b9\u6848 SIMICAS \u7b80\u5316\u6570\u636e\u5904\u7406\u6d41\u7a0b"},"content":{"rendered":"\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"436\" src=\"https:\/\/www.taosdata.com\/wp-content\/uploads\/2022\/07\/\u897f\u95e8\u5b50-\u7ec8-1024x436.jpg\" alt=\"TDengine Database\" class=\"wp-image-12858\" srcset=\"https:\/\/www.taosdata.com\/wp-content\/uploads\/2022\/07\/\u897f\u95e8\u5b50-\u7ec8-1024x436.jpg 1024w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2022\/07\/\u897f\u95e8\u5b50-\u7ec8-300x128.jpg 300w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2022\/07\/\u897f\u95e8\u5b50-\u7ec8-768x327.jpg 768w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2022\/07\/\u897f\u95e8\u5b50-\u7ec8-1536x654.jpg 1536w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2022\/07\/\u897f\u95e8\u5b50-\u7ec8.jpg 1920w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" title=\"- TDengine Database \u65f6\u5e8f\u6570\u636e\u5e93\"><\/figure><\/div>\n\n\n\n<blockquote class=\"wp-block-quote\"><p><strong>\u5c0f&nbsp;T&nbsp;\u5bfc\u8bfb<\/strong>\uff1aSIMICAS\u00ae OEM \u8bbe\u5907\u8fdc\u7a0b\u8fd0\u7ef4\u5957\u4ef6\u662f\u7531 SIEMENS DE&DS DSM \u56e2\u961f\u5f00\u53d1\u7684\u4e00\u5957\u9762\u5411\u8bbe\u5907\u5236\u9020\u5546\u7684\u6570\u5b57\u5316\u89e3\u51b3\u65b9\u6848\u3002\u5728\u786e\u5b9a\u9009\u62e9 <a href=\"https:\/\/www.taosdata.com\/\" data-internallinksmanager029f6b8e52c=\"1\" title=\"TDengine\" target=\"_blank\" rel=\"noopener\">TDengine<\/a> \u4f5c\u4e3a\u7cfb\u7edf\u7684\u65f6\u5e8f\u6570\u636e\u5e93\u540e\uff0c\u4ed6\u4eec\u5728 SIMICAS\u00ae OEM 2.0 \u7248\u672c\u4e2d\u79fb\u9664\u4e86 Flink\u3001Kafka \u4ee5\u53ca Redis\uff0c\u5927\u5927\u7b80\u5316\u4e86\u7cfb\u7edf\u67b6\u6784\u3002<\/p><\/blockquote>\n\n\n\n<h3><strong>\u9879\u76ee\u80cc\u666f<\/strong><\/h3>\n\n\n\n<p>IIoT\uff08Industrial Internet of Things\uff09\u662f\u5de5\u4e1a\u7269\u8054\u7f51\u7684\u7b80\u79f0\uff0c\u5b83\u5c06\u5177\u6709\u611f\u77e5\u3001\u76d1\u63a7\u80fd\u529b\u7684\u5404\u7c7b\u91c7\u96c6\u3001\u63a7\u5236\u4f20\u611f\u5668\u6216\u63a7\u5236\u5668\uff0c\u4ee5\u53ca\u79fb\u52a8\u901a\u4fe1\u3001\u667a\u80fd\u5206\u6790\u7b49\u6280\u672f\u4e0d\u65ad\u878d\u5165\u5230\u5de5\u4e1a\u751f\u4ea7\u8fc7\u7a0b\u7684\u5404\u4e2a\u73af\u8282\uff0c\u4ece\u800c\u5927\u5e45\u63d0\u9ad8\u5236\u9020\u6548\u7387\uff0c\u6539\u5584\u4ea7\u54c1\u8d28\u91cf\uff0c\u964d\u4f4e\u4ea7\u54c1\u6210\u672c\u548c\u8d44\u6e90\u6d88\u8017\uff0c\u6700\u7ec8\u5b9e\u73b0\u5c06\u4f20\u7edf\u5de5\u4e1a\u63d0\u5347\u5230\u667a\u80fd\u5316\u7684\u65b0\u9636\u6bb5\u3002<\/p>\n\n\n\n<p>\u901a\u8fc7\u65b0\u7684\u4e92\u8054\u7f51\u8fde\u63a5\u8bbe\u5907\u83b7\u53d6\u7684\u6570\u636e\u53ef\u7528\u4e8e\u63d0\u9ad8\u6548\u7387\u3001\u5b9e\u65f6\u51b3\u7b56\u3001\u89e3\u51b3\u5173\u952e\u95ee\u9898\uff0c\u5e76\u6700\u7ec8\u521b\u9020\u65b0\u7684\u521b\u65b0\u4f53\u9a8c\u3002\u7136\u800c\u968f\u7740\u76f8\u4e92\u8fde\u63a5\u7684\u8bbe\u5907\u8d8a\u6765\u8d8a\u591a\uff0c\u516c\u53f8\u6240\u9762\u4e34\u7684\u788e\u7247\u5316\u548c\u65b0\u6311\u6218\u4e5f\u8d8a\u6765\u8d8a\u591a\u3002\u4e3a\u4e86\u83b7\u53d6\u548c\u5229\u7528\u6570\u636e\u7684\u529b\u91cf\uff0c\u4ed6\u4eec\u9700\u8981\u89e3\u51b3\u65b9\u6848\u6765\u63d0\u4f9b\u53ef\u4e92\u64cd\u4f5c\u7684\u7aef\u5230\u7aef\u534f\u4f5c\uff0c\u4ece\u800c\u5728\u4e92\u8054\u7f51\u548c\u8bbe\u5907\u4e4b\u95f4\u67b6\u8d77\u6865\u6881\uff0c\u540c\u65f6\u9a7e\u9a6d\u5373\u5c06\u5230\u6765\u7684\u521b\u65b0\u6d6a\u6f6e\u3002<\/p>\n\n\n\n<p>SIMICAS\u00ae OEM \u8bbe\u5907\u8fdc\u7a0b\u8fd0\u7ef4\u5957\u4ef6\u662f\u7531 SIEMENS DE&DS DSM \u56e2\u961f\u5f00\u53d1\u7684\u4e00\u5957\u9762\u5411\u8bbe\u5907\u5236\u9020\u5546\u7684\u6570\u5b57\u5316\u89e3\u51b3\u65b9\u6848\uff0c\u8be5\u65b9\u6848\u501f\u52a9\u7269\u8054\u7f51\u5b9e\u73b0\u8bbe\u5907\u7684\u9ad8\u6548\u8fdc\u7a0b\u8fd0\u7ef4\uff0c\u5bf9\u552e\u540e\u670d\u52a1\u6570\u636e\u8fdb\u884c\u667a\u80fd\u5206\u6790\uff0c\u4ece\u800c\u771f\u6b63\u5b9e\u73b0\u6574\u4f53\u552e\u540e\u73af\u8282\u7684\u964d\u672c\u589e\u6548\u3002<\/p>\n\n\n\n<p>\u5728 IIoT \u5927\u80cc\u666f\u7684\u53d1\u5c55\u6d6a\u6f6e\u4e0b\uff0cSIMICAS \u4e3a\u4f01\u4e1a\u63d0\u4f9b\u4e86\u4e00\u4e2a\u8e0f\u5165\u6570\u5b57\u5316\u4e16\u754c\u7684\u7075\u6d3b\u9009\u62e9\uff0c\u5e2e\u52a9\u4f01\u4e1a\u6839\u636e\u81ea\u8eab\u53d1\u5c55\u9700\u6c42\u5b9a\u5236\u6570\u5b57\u5316\u53d1\u5c55\u8def\u5f84\u3002SIMICAS \u89e3\u51b3\u65b9\u6848\u7531\u56db\u4e2a\u90e8\u5206\u7ec4\u6210\uff1aSIMICAS \u667a\u80fd\u7f51\u5173\u3001SIMICAS \u7ec4\u6001\u5de5\u5177\uff0c\u4ee5\u53ca\u4e24\u4e2a\u5728\u897f\u95e8\u5b50\u57fa\u4e8e\u4e91\u7684\u5f00\u653e\u5f0f\u7269\u8054\u7f51\u64cd\u4f5c\u7cfb\u7edf MindSphere \u57fa\u7840\u4e0a\u5f00\u53d1\u7684 APP\u2014\u2014SIMICAS \u751f\u4ea7\u900f\u955c\u548c SIMICAS \u4ea7\u6548\u5206\u6790\u3002&nbsp;<\/p>\n\n\n\n<h2>\u4e00\u3001<strong>\u7cfb\u7edf\u67b6\u6784<\/strong><\/h2>\n\n\n\n<p>\u5728\u5176&nbsp;1.0&nbsp;\u7248\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u4e86&nbsp;Flink&nbsp;+&nbsp;Kafka&nbsp;+&nbsp;PostgreSQL&nbsp;+&nbsp;Redis&nbsp;\u7684\u67b6\u6784\u3002\u8be5\u7cfb\u7edf\u7684\u6570\u636e\u6d41\u5982\u4e0b\uff1a<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img decoding=\"async\" loading=\"lazy\" width=\"911\" height=\"450\" src=\"https:\/\/www.taosdata.com\/wp-content\/uploads\/2022\/07\/\u897f\u95e8\u5b501.png\" alt=\"TDengine Database\" class=\"wp-image-12854\" srcset=\"https:\/\/www.taosdata.com\/wp-content\/uploads\/2022\/07\/\u897f\u95e8\u5b501.png 911w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2022\/07\/\u897f\u95e8\u5b501-300x148.png 300w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2022\/07\/\u897f\u95e8\u5b501-768x379.png 768w\" sizes=\"(max-width: 911px) 100vw, 911px\" title=\"- TDengine Database \u65f6\u5e8f\u6570\u636e\u5e93\"><\/figure><\/div>\n\n\n\n<p>\u8bbe\u5907\u6570\u636e\u901a\u8fc7\u90e8\u7f72\u81f3\u73b0\u573a\u7684\u7f51\u5173\u4e0a\u4f20\u81f3\u7269\u8054\u7f51\u63a5\u5165\u7ec4\u4ef6\uff0c\u7ec4\u4ef6\u6839\u636e\u914d\u7f6e\u5bf9\u6570\u636e\u8fdb\u884c\u89e3\u6790\u5904\u7406\u540e\uff0c\u5c06\u5176\u5199\u5165&nbsp;Kafka&nbsp;\u961f\u5217\uff0cFlink&nbsp;\u4ece&nbsp;Kafka&nbsp;\u4e2d\u6d88\u8d39\u6570\u636e\u5e76\u8fdb\u884c\u8ba1\u7b97\uff0c\u539f\u59cb\u503c\u53ca\u8ba1\u7b97\u540e\u7684\u6307\u6807\u6570\u636e\u90fd\u4f1a\u88ab\u5199\u5165&nbsp;PostgreSQL&nbsp;\u4e2d\uff0c\u6700\u65b0\u503c\u8fd8\u4f1a\u5b58\u4e00\u4efd\u5230&nbsp;Redis&nbsp;\u4e2d\uff0c\u4ee5\u4fbf\u66f4\u5feb\u5730\u54cd\u5e94\u524d\u7aef\u5b9e\u65f6\u7684\u6570\u636e\u67e5\u8be2\uff0c\u8bbe\u5907\u5386\u53f2\u6570\u636e\u5219\u4ece&nbsp;PostgreSQL&nbsp;\u4e2d\u67e5\u8be2\u3002<\/p>\n\n\n\n<h2>\u4e8c\u3001<strong>\u4e1a\u52a1\u6311\u6218<\/strong><\/h2>\n\n\n\n<p>1.0 \u7cfb\u7edf\u843d\u5730\u4e4b\u540e\uff0c\u6211\u4eec\u9047\u5230\u4e86\u4e24\u5927\u6311\u6218\uff0c\u4e00\u4e2a\u662f\u90e8\u7f72\u7e41\u7410\uff0c\u4e00\u4e2a\u662f\u5e94\u7528\u590d\u6742\u3002<\/p>\n\n\n\n<p>\u5177\u4f53\u6765\u8bf4\uff0c\u56e0\u4e3a\u5f15\u5165\u4e86&nbsp;Flink&nbsp;\u548c&nbsp;Kafka\uff0c\u5bfc\u81f4\u7cfb\u7edf\u90e8\u7f72\u65f6\u975e\u5e38\u7e41\u7410\uff0c\u670d\u52a1\u5668\u5f00\u9500\u5de8\u5927\uff1b\u540c\u65f6\u4e3a\u4e86\u6ee1\u8db3\u5927\u91cf\u6570\u636e\u7684\u5b58\u50a8\u95ee\u9898\uff0cPostgreSQL&nbsp;\u4e2d\u4e0d\u5f97\u4e0d\u505a\u5206\u5e93\u5206\u8868\u64cd\u4f5c\uff0c\u5e94\u7528\u7a0b\u5e8f\u8f83\u4e3a\u590d\u6742\u3002<\/p>\n\n\n\n<p>\u5982\u4f55\u964d\u4f4e\u7cfb\u7edf\u590d\u6742\u5ea6\u3001\u51cf\u5c11\u786c\u4ef6\u8d44\u6e90\u5f00\u9500\uff0c\u5e2e\u52a9\u5ba2\u6237\u51cf\u5c11\u6210\u672c\uff0c\u6210\u4e3a\u7814\u53d1\u56e2\u961f\u7684\u6838\u5fc3\u4efb\u52a1\u3002<\/p>\n\n\n\n<h2>\u4e09\u3001<strong>\u6280\u672f\u9009\u578b<\/strong><\/h2>\n\n\n\n<p>\u4ece\u4ea7\u54c1\u7684\u5b9e\u9645\u75db\u70b9\u51fa\u53d1\uff0c\u7ed3\u5408\u672a\u6765\u4ea7\u54c1\u7684\u53d1\u5c55\u89c4\u5212\uff0c\u6211\u4eec\u56e2\u961f\u8ba1\u5212\u5bf9\u4ea7\u54c1\u7684\u6570\u636e\u5904\u7406\u90e8\u5206\u8fdb\u884c\u91cd\u6784\uff0c\u5728\u6280\u672f\u9009\u578b\u65f6\u4e3b\u8981\u8003\u8651\u4e86\u5982\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n\n\n\n<ul><li>\u9ad8\u6027\u80fd\uff0c\u53ef\u4ee5\u652f\u6301\u767e\u4e07\u7ea7\u522b\u7684\u5e76\u53d1\u5199\u5165\u3001\u4e07\u7ea7\u7684\u5e76\u53d1\u8bfb\u53d6\uff0c\u5927\u91cf\u805a\u5408\u67e5\u8be2\u65f6\u4f9d\u7136\u6709\u9ad8\u6027\u80fd\u8868\u73b0<\/li><li>\u9ad8\u53ef\u7528\uff0c\u53ef\u652f\u6301\u96c6\u7fa4\u90e8\u7f72\uff0c\u53ef\u6a2a\u5411\u6269\u5c55\uff0c\u4e0d\u5b58\u5728\u5355\u70b9\u6545\u969c<\/li><li>\u4f4e\u6210\u672c\uff0c\u6570\u636e\u5e93\u5bf9\u786c\u4ef6\u8d44\u6e90\u8981\u6c42\u4f4e\uff0c\u6570\u636e\u538b\u7f29\u7387\u9ad8<\/li><li>\u9ad8\u5ea6\u4e00\u4f53\u5316\uff0c\u5728\u5177\u5907\u4ee5\u4e0a\u4e09\u4e2a\u7279\u70b9\u7684\u57fa\u7840\u4e0a\uff0c\u662f\u5426\u5177\u5907\u4e00\u5b9a\u7684\u6d88\u606f\u961f\u5217\u3001\u6d41\u5f0f\u8ba1\u7b97\u548c\u7f13\u5b58\u7684\u529f\u80fd<\/li><\/ul>\n\n\n\n<p>\u672c\u7740\u4ee5\u4e0a\u51e0\u4e2a\u9700\u6c42\uff0c\u5728\u5bf9\u5404\u79cd\u5f00\u6e90\u6570\u636e\u5e73\u53f0\u3001<a href=\"https:\/\/www.taosdata.com\/\" data-internallinksmanager029f6b8e52c=\"2\" title=\"\u65f6\u5e8f\u6570\u636e\u5e93\" target=\"_blank\" rel=\"noopener\">\u65f6\u5e8f\u6570\u636e\u5e93<\/a>\uff08<a href=\"https:\/\/www.taosdata.com\/time-series-database\" data-internallinksmanager029f6b8e52c=\"9\" title=\"Time Series DataBase\" target=\"_blank\" rel=\"noopener\">Time Series Database<\/a>\uff09\u8fdb\u884c\u9009\u578b\u5bf9\u6bd4\u540e\uff0c\u6211\u4eec\u53d1\u73b0 TDengine \u6b63\u597d\u7b26\u5408\u4ea7\u54c1\u91cd\u6784\u6240\u6709\u7684\u8981\u6c42\uff0c\u5c24\u5176\u662f\u4f4e\u6210\u672c\u548c\u9ad8\u5ea6\u4e00\u4f53\u5316\u8fd9\u4e24\u4e2a\u70b9\uff0c\u8fd9\u662f\u76ee\u524d\u7edd\u5927\u90e8\u5206\u6570\u636e\u5e73\u53f0\u6216\u65f6\u5e8f\u6570\u636e\u5e93\u90fd\u4e0d\u5177\u5907\u7684\uff0c\u6240\u4ee5\u56e2\u961f\u679c\u65ad\u9009\u62e9\u4e86 TDengine\u3002<\/p>\n\n\n\n<h2>\u56db\u3001<strong>\u843d\u5730\u5b9e\u8df5<\/strong><\/h2>\n\n\n\n<h3><strong>\u6570\u636e\u6d41\u7a0b<\/strong><\/h3>\n\n\n\n<p>\u5728\u786e\u5b9a\u9009\u62e9&nbsp;TDengine&nbsp;\u4f5c\u4e3a\u7cfb\u7edf\u7684\u5e8f\u6570\u636e\u5e93\u540e\uff0c\u6211\u4eec\u5728&nbsp;SIMICAS\u00ae&nbsp;OEM 2.0&nbsp;\u7248\u672c\u4e2d\u79fb\u9664\u4e86Flink\u3001Kafka&nbsp;\u4ee5\u53ca&nbsp;Redis\uff0c\u65b0\u7cfb\u7edf\u7684\u6570\u636e\u6d41\u5982\u4e0b\uff1a<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img decoding=\"async\" loading=\"lazy\" width=\"631\" height=\"251\" src=\"https:\/\/www.taosdata.com\/wp-content\/uploads\/2022\/07\/\u897f\u95e8\u5b502.png\" alt=\"TDengine Database\" class=\"wp-image-12855\" srcset=\"https:\/\/www.taosdata.com\/wp-content\/uploads\/2022\/07\/\u897f\u95e8\u5b502.png 631w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2022\/07\/\u897f\u95e8\u5b502-300x119.png 300w\" sizes=\"(max-width: 631px) 100vw, 631px\" title=\"- TDengine Database \u65f6\u5e8f\u6570\u636e\u5e93\"><\/figure><\/div>\n\n\n\n<h3><strong>\u6570\u636e\u5efa\u6a21<\/strong><\/h3>\n\n\n\n<h4><strong>\u521b\u5efa\u6570\u636e\u5e93<\/strong><\/h4>\n\n\n\n<p>\u6570\u636e\u9ed8\u8ba4\u4fdd\u5b58 2 \u5e74\uff0c\u6570\u636e\u5e93\u91c7\u7528 3 \u8282\u70b9\u96c6\u7fa4\uff0c\u6570\u636e\u91c7\u7528 3 \u526f\u672c\u5b58\u50a8\uff0c\u4fdd\u7559 update \u80fd\u529b\uff1b<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>create&nbsp;database&nbsp;if&nbsp;not&nbsp;exists&nbsp;simicas_data&nbsp;keep&nbsp;712&nbsp;replica&nbsp;3&nbsp;update&nbsp;2;<\/code><\/pre>\n\n\n\n<h4><\/h4>\n\n\n\n<h4><strong>\u521b\u5efa\u5b9e\u65f6\u6570\u636e\u8868\u683c<\/strong><\/h4>\n\n\n\n<p>\u4e3a\u5e73\u53f0\u4e2d\u7684\u6bcf\u79cd\u8bbe\u5907\u7c7b\u578b\u521b\u5efa\u4e00\u4e2a\u72ec\u7acb\u7684\u8d85\u7ea7\u8868\uff08super table\uff09\uff0c\u4e3a\u6bcf\u79cd\u8bbe\u5907\u7c7b\u578b\u4e0b\u7684\u6bcf\u4e2a\u5177\u4f53\u8bbe\u5907\u521b\u5efa\u72ec\u7acb\u7684\u8bbe\u5907\u5b50\u8868\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"><code>create stable if not exists product_${productKey} (ts timestamp,linestate bool,${device_properties}) tags (device_code binary(64));<\/code>\n<code>create&nbsp;table&nbsp;if&nbsp;not&nbsp;exists&nbsp;device_${device_code}&nbsp;using&nbsp;product_${productKey}&nbsp;tags&nbsp;(${device_code})<\/code><\/pre>\n\n\n\n<h4><\/h4>\n\n\n\n<h4><strong>\u521b\u5efa\u72b6\u6001\u8868<\/strong><\/h4>\n\n\n\n<p>\u4e3a\u5e73\u53f0\u4e2d\u6240\u6709\u8bbe\u5907\u521b\u5efa\u4e00\u4e2a\u5171\u540c\u7684\u8d85\u7ea7\u8868\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"><code>create stable if not exists device_state (ts timestamp,linestate bool,run_status int,error_code binary(64),run_total_time int,stop_total_time int,error_total_time int) tags (device_code binary(64),product_key binary(64));<\/code>\n<code>create&nbsp;table&nbsp;if&nbsp;not&nbsp;exists&nbsp;device_state_${device_code}&nbsp;using&nbsp;device_state&nbsp;tags&nbsp;(${device_code},${productKey})<\/code><\/pre>\n\n\n\n<h4><strong>\u6307\u6807\u8ba1\u7b97<\/strong><\/h4>\n\n\n\n<p>\u6211\u4eec\u57fa\u4e8e&nbsp;JEXL&nbsp;\u8868\u8fbe\u5f0f&nbsp;+&nbsp;\u5b9e\u65f6\u67e5\u8be2\u7684\u65b9\u5f0f\u5b9e\u73b0\u4e86\u7cfb\u7edf\u4e2d\u7684\u6307\u6807\u8ba1\u7b97\u3002\u6211\u4eec\u4f7f\u7528&nbsp;JEXL&nbsp;\u8868\u8fbe\u5f0f\u6765\u5b9a\u4e49\u6307\u6807\u7684\u8ba1\u7b97\u8868\u8fbe\u5f0f\uff0c\u7cfb\u7edf\u89e3\u6790\u540e\u5c06\u53d8\u91cf\u66ff\u6362\u6210&nbsp;SQL&nbsp;\u67e5\u8be2\u4efb\u52a1\uff0c\u5728\u67e5\u8be2\u8fd4\u56de\u7ed3\u679c\u540e\u518d\u5230\u7cfb\u7edf\u4e2d\u8fdb\u884c\u8ba1\u7b97\uff0c\u8fd4\u56de\u81f3\u524d\u7aef\u3002<\/p>\n\n\n\n<p>\u6bd4\u5982\u8ba1\u7b97\u67d0\u9879\u76ee\u4e0b\u6240\u6709\u8bbe\u5907\u5f53\u524d\u7535\u538b\u7684\u5e73\u5747\u503c\uff0c\u5176\u8868\u8fbe\u5f0f\u4e3a&nbsp;avg(voltage,run_status=1 && project=abc)\uff0c\u5b83\u4f1a\u88ab\u5206\u89e3\u4e3a\uff1a1\uff09\u67e5\u8be2&nbsp;run_status=1 && project=abc&nbsp;\u7684\u6240\u6709\u8bbe\u5907\uff1b2\uff09\u67e5\u8be2\u7b2c\u4e00\u6b65\u7ed3\u679c\u4e2d\u6240\u6709\u8bbe\u5907&nbsp;voltage&nbsp;\u5b57\u6bb5\u7684\u6700\u65b0\u503c\uff1b3\uff09\u8ba1\u7b97\u7b2c\u4e8c\u6b65\u6240\u6709\u8bbe\u5907\u6700\u65b0\u7ed3\u679c\u7684\u5e73\u5747\u503c\u3002<\/p>\n\n\n\n<p>\u5f97\u76ca\u4e8e\u591a\u7ebf\u7a0b\u548c&nbsp;TDengine&nbsp;\u9ad8\u6548\u7684\u67e5\u8be2\u8868\u73b0\uff0c\u5355\u4e2a&nbsp;KPI&nbsp;\u7684\u67e5\u8be2&nbsp;P99&nbsp;\u8868\u73b0\u5c0f\u4e8e&nbsp;100ms\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.taosdata.com\/wp-content\/uploads\/2022\/07\/\u897f\u95e8\u5b503.png\" alt=\"TDengine Database\" class=\"wp-image-12856\" width=\"591\" height=\"124\" srcset=\"https:\/\/www.taosdata.com\/wp-content\/uploads\/2022\/07\/\u897f\u95e8\u5b503.png 358w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2022\/07\/\u897f\u95e8\u5b503-300x63.png 300w\" sizes=\"(max-width: 591px) 100vw, 591px\" title=\"- TDengine Database \u65f6\u5e8f\u6570\u636e\u5e93\"><\/figure><\/div>\n\n\n\n<h2>\u4e94\u3001<strong>\u9047\u5230\u7684\u95ee\u9898<\/strong><\/h2>\n\n\n\n<p>\u5728 TDengine \u5b98\u65b9\u63a8\u8350\u7684\u6700\u4f73\u5b9e\u8df5\u4e2d\uff0c\u6570\u636e\u8868\u5efa\u6a21\u5efa\u8bae\u4f7f\u7528\u591a\u5217\u6a21\u5f0f\uff0c\u6211\u4eec\u56e2\u961f\u5728\u4e00\u5f00\u59cb\u9009\u62e9\u4e86\u8fd9\u79cd\u65b9\u5f0f\uff0c\u4f46\u662f\u5728\u5b9e\u9645\u4f7f\u7528\u4e2d\u53d1\u73b0\uff0c\u90e8\u5206\u5ba2\u6237\u7684\u8bbe\u5907\u6d4b\u70b9\u975e\u5e38\u591a\uff0c\u751a\u81f3\u8d85\u8fc7 2000 \u5217\uff0c\u8fd9\u6837\u53ef\u80fd\u4f1a\u56e0\u4e3a\u5355\u884c\u6570\u636e\u8fc7\u5927\u800c\u5bfc\u81f4\u63d2\u5165\u6570\u636e SQL \u8fc7\u957f\u7684\u95ee\u9898[1] \uff1b\u53e6\u4e00\u4e2a\u95ee\u9898\u662f\u73b0\u573a\u8bbe\u5907\u662f\u6309\u7167\u201cOnChange\uff08\u7a81\u53d1\u4e0a\u9001\uff09\u201d\u65b9\u5f0f\u8fdb\u884c\u6570\u636e\u4e0a\u4f20\uff0c\u5bfc\u81f4\u975e\u5e38\u591a\u7684 NULL \u503c\u51fa\u73b0\uff0c\u5728\u6267\u884c select last(*) from device_xxx \u65f6\u6548\u7387\u8f83\u4f4e[2]\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img decoding=\"async\" loading=\"lazy\" width=\"1000\" height=\"546\" src=\"https:\/\/www.taosdata.com\/wp-content\/uploads\/2022\/07\/\u897f\u95e8\u5b504.jpg\" alt=\"TDengine Database\" class=\"wp-image-12857\" srcset=\"https:\/\/www.taosdata.com\/wp-content\/uploads\/2022\/07\/\u897f\u95e8\u5b504.jpg 1000w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2022\/07\/\u897f\u95e8\u5b504-300x164.jpg 300w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2022\/07\/\u897f\u95e8\u5b504-768x419.jpg 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" title=\"- TDengine Database \u65f6\u5e8f\u6570\u636e\u5e93\"><\/figure><\/div>\n\n\n\n<p>\u5728\u4e0e&nbsp;TDengine&nbsp;\u5b98\u65b9\u7684\u6280\u672f\u4eba\u5458\u6c9f\u901a\u540e\uff0c\u6211\u4eec\u4e86\u89e3\u5230\uff0clast&nbsp;\u51fd\u6570\u662f\u5bf9\u6bcf\u5217\u8fdb\u884c\u67e5\u627e\uff0c\u76f4\u5230\u6700\u8fd1\u4e00\u6761\u975e&nbsp;NULL&nbsp;\u503c\u4e3a\u6b62\uff0c\u5728\u5f53\u65f6\u7684\u7248\u672c\u4e0b\uff0ccache&nbsp;\u5bf9&nbsp;last&nbsp;\u51fd\u6570\u662f\u65e0\u6548\u7684\u3002<\/p>\n\n\n\n<p>\u540e\u6765\uff0c\u56e2\u961f\u901a\u8fc7\u5bf9\u9879\u76ee\u4e2d\u5355\u4e2a\u8bbe\u5907\u53c2\u6570\u7684\u6700\u5927\u6570\u91cf\u8fdb\u884c\u9650\u5236\uff0c\u89e3\u51b3\u4e86\u95ee\u9898[1]\uff1b\u53c8\u901a\u8fc7\u4fee\u6539\u8bbe\u5907\u6570\u636e\u7684\u4e0a\u4f20\u65b9\u5f0f\uff0c\u89e3\u51b3\u4e86\u95ee\u9898[2]\u3002<\/p>\n\n\n\n<p>\u4f46\u662f\u5728\u6839\u672c\u4e0a\uff0c\u8fd8\u662f\u6211\u4eec\u5728\u6700\u521d\u5efa\u6a21\u65f6\uff0c\u6ca1\u6709\u5145\u5206\u8003\u8651\u5230\u5ba2\u6237\u7684\u4e1a\u52a1\u573a\u666f\uff0c\u4ece\u800c\u5bfc\u81f4\u4e86\u4ee5\u4e0a\u95ee\u9898\u3002\u56e0\u6b64\uff0c\u6211\u4eec\u56e2\u961f\u540e\u7eed\u5728\u7cfb\u7edf\u4e2d\u5b9e\u73b0\u4e86\u540c\u65f6\u652f\u6301\u591a\u5217\u6a21\u5f0f\u548c\u5355\u5217\u6a21\u5f0f\uff0c\u8fd9\u6837\u5ba2\u6237\u5c31\u53ef\u4ee5\u6839\u636e\u73b0\u573a\u7684\u5b9e\u9645\u60c5\u51b5\uff0c\u81ea\u7531\u5207\u6362\u5efa\u6a21\u65b9\u5f0f\u3002<\/p>\n\n\n\n<h2>\u516d\u3001<strong>\u5199\u5728\u6700\u540e<\/strong><\/h2>\n\n\n\n<p>\u4e0e\u5176\u4ed6\u5f00\u6e90\u6570\u636e\u5e73\u53f0\u6216\u6570\u636e\u5e93\u76f8\u6bd4\uff0c\u76ee\u524d&nbsp;TDengine&nbsp;\u7684\u8fd0\u7ef4\u76d1\u63a7\u80fd\u529b\u8fd8\u4e0d\u7b97\u5f3a\u5927\uff0c\u4e0d\u8fc7\u524d\u6bb5\u65f6\u95f4\u53d1\u5e03\u7684&nbsp;TDinsight&nbsp;\u5df2\u7ecf\u5e26\u6765\u4e86\u5f88\u591a\u6539\u8fdb\uff0c\u6211\u4eec\u56e2\u961f\u4e5f\u89c4\u5212\u5728\u4e0b\u4e00\u9636\u6bb5\u8bd5\u7528\u4e00\u4e0b\u3002<br>\u7279\u522b\u611f\u8c22\u6d9b\u601d\u6570\u636e\u7684\u9648\u4f1f\u707f\u53ca\u5176\u4ed6\u540c\u4e8b\u5728\u4ea7\u54c1\u5f00\u53d1\u8fc7\u7a0b\u7ed9\u4e88\u7684\u652f\u6301\uff0c\u867d\u7136\u5728\u8fc7\u7a0b\u4e2d\u9047\u5230\u4e00\u4e9b\u95ee\u9898\uff0c\u4f46\u6574\u4f53\u800c\u8a00\uff0cTDengine&nbsp;\u7684\u5404\u9879\u4f18\u5f02\u8868\u73b0\u7ed9\u4e86\u6211\u4eec\u56e2\u961f\u5f88\u591a\u60ca\u559c\u3002<\/p>\n\n\n\n<p>\u6700\u540e\u671f\u5f85&nbsp;TDengine\u8d8a\u6765\u8d8a\u597d\uff0c\u5e2e\u52a9\u66f4\u591a\u5ba2\u6237\u3001\u66f4\u591a\u573a\u666f\u964d\u672c\u589e\u6548\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>SIMICAS\u00ae OEM \u8bbe\u5907\u8fdc\u7a0b\u8fd0\u7ef4\u5957\u4ef6\u662f\u7531 SIEMENS DE&DS DSM \u56e2\u961f\u5f00\u53d1\u7684\u4e00\u5957\u9762\u5411\u8bbe\u5907\u5236\u9020\u5546\u7684\u6570\u5b57\u5316\u89e3\u51b3\u65b9\u6848\u3002\u5728\u786e\u5b9a\u9009\u62e9 TDengine \u4f5c\u4e3a\u7cfb\u7edf\u7684\u65f6\u5e8f\u6570\u636e\u5e93\u540e\uff0c\u4ed6\u4eec\u5728 SIMICAS\u00ae OEM 2.0 \u7248\u672c\u4e2d\u79fb\u9664\u4e86 Flink\u3001Kafka \u4ee5\u53ca Redis\uff0c\u5927\u5927\u7b80\u5316\u4e86\u7cfb\u7edf\u67b6\u6784\u3002<\/p>\n","protected":false},"author":157,"featured_media":12858,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[4,5,69,7],"tags":[44,39,55],"_links":{"self":[{"href":"https:\/\/www.taosdata.com\/wp-json\/wp\/v2\/posts\/12851"}],"collection":[{"href":"https:\/\/www.taosdata.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.taosdata.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.taosdata.com\/wp-json\/wp\/v2\/users\/157"}],"replies":[{"embeddable":true,"href":"https:\/\/www.taosdata.com\/wp-json\/wp\/v2\/comments?post=12851"}],"version-history":[{"count":0,"href":"https:\/\/www.taosdata.com\/wp-json\/wp\/v2\/posts\/12851\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.taosdata.com\/wp-json\/wp\/v2\/media\/12858"}],"wp:attachment":[{"href":"https:\/\/www.taosdata.com\/wp-json\/wp\/v2\/media?parent=12851"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.taosdata.com\/wp-json\/wp\/v2\/categories?post=12851"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.taosdata.com\/wp-json\/wp\/v2\/tags?post=12851"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}