{"id":69,"date":"2025-09-29T11:32:53","date_gmt":"2025-09-29T03:32:53","guid":{"rendered":"https:\/\/www.yichon.com\/?p=69"},"modified":"2025-10-02T12:49:51","modified_gmt":"2025-10-02T04:49:51","slug":"mqtt","status":"publish","type":"post","link":"https:\/\/www.yichon.com\/index.php\/2025\/09\/29\/mqtt\/","title":{"rendered":"MQTT\u534f\u8bae\u4ecb\u7ecd"},"content":{"rendered":"\t\t
\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t

MQTT \u534f\u8bae\u6982\u5ff5\u8be6\u89e3<\/h1><\/div>
MQTT\uff08Message Queuing Telemetry Transport\uff0c\u6d88\u606f\u961f\u5217\u9065\u6d4b\u4f20\u8f93\uff09\u662f\u4e00\u79cd\u8f7b\u91cf\u7ea7\u3001\u57fa\u4e8e\u53d1\u5e03 \/ \u8ba2\u9605\uff08Publish\/Subscribe\uff09\u6a21\u5f0f\u7684\u7269\u8054\u7f51\uff08IoT\uff09\u901a\u4fe1\u534f\u8bae<\/b>\uff0c\u7531 IBM \u5728 1999 \u5e74\u9996\u6b21\u63d0\u51fa\uff0c\u6700\u521d\u7528\u4e8e\u89e3\u51b3\u77f3\u6cb9\u548c\u5929\u7136\u6c14\u884c\u4e1a\u8fdc\u7a0b\u8bbe\u5907\u7684\u4f4e\u5e26\u5bbd\u3001\u9ad8\u5ef6\u8fdf\u6570\u636e\u4f20\u8f93\u95ee\u9898\uff0c\u5982\u4eca\u5df2\u6210\u4e3a\u7269\u8054\u7f51\u9886\u57df\u6700\u4e3b\u6d41\u7684\u901a\u4fe1\u534f\u8bae\u4e4b\u4e00\uff0c\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u667a\u80fd\u5bb6\u5c45\u3001\u5de5\u4e1a\u76d1\u63a7\u3001\u8f66\u8054\u7f51\u3001\u8fdc\u7a0b\u533b\u7597\u7b49\u573a\u666f\u3002<\/div>

\u4e00\u3001MQTT \u534f\u8bae\u7684\u6838\u5fc3\u5b9a\u4f4d\uff1a\u4e3a\u4f55\u662f \u201c\u8f7b\u91cf\u7ea7\u201d\uff1f<\/h2><\/div>
MQTT \u7684\u6838\u5fc3\u4f18\u52bf\u5728\u4e8e \u201c\u8f7b\u91cf\u201d\uff0c\u8fd9\u4e00\u7279\u6027\u4f7f\u5176\u80fd\u9002\u914d\u7269\u8054\u7f51\u573a\u666f\u4e2d\u8d44\u6e90\u53d7\u9650\u7684\u8bbe\u5907<\/b>\uff08\u5982\u4f20\u611f\u5668\u3001\u5d4c\u5165\u5f0f\u8bbe\u5907\uff0c\u901a\u5e38\u5185\u5b58\u5c0f\u3001\u7b97\u529b\u4f4e\uff09\u548c\u4e0d\u7a33\u5b9a\u7684\u7f51\u7edc\u73af\u5883<\/b>\uff08\u5982\u4f4e\u5e26\u5bbd\u3001\u9ad8\u4e22\u5305\u7387\u7684\u65e0\u7ebf\u901a\u4fe1\uff09\uff0c\u5177\u4f53\u4f53\u73b0\u5728\u4ee5\u4e0b\u4e24\u70b9\uff1a<\/div>
  1. \u534f\u8bae\u5934\u90e8\u6781\u5c0f<\/b>\uff1a\u56fa\u5b9a\u5934\u90e8\u4ec5 2 \u5b57\u8282\uff0c\u53ef\u53d8\u5934\u90e8\u548c\u6709\u6548\u8f7d\u8377\u6309\u9700\u6dfb\u52a0\uff0c\u6781\u5927\u51cf\u5c11\u6570\u636e\u4f20\u8f93\u91cf\uff08\u4f8b\u5982\uff0c\u4e00\u6761\u7b80\u5355\u7684\u4f20\u611f\u5668\u6570\u636e\uff08\u5982 \u201c\u6e29\u5ea6 25\u2103\u201d\uff09\u7684 MQTT \u6570\u636e\u5305\u5927\u5c0f\u53ef\u80fd\u4ec5\u51e0\u5341\u5b57\u8282\uff09\u3002<\/li><\/ol>
    1. \u4f4e\u8d44\u6e90\u6d88\u8017<\/b>\uff1a\u5ba2\u6237\u7aef\uff08\u8bbe\u5907\uff09\u5b9e\u73b0 MQTT \u534f\u8bae\u6240\u9700\u7684\u4ee3\u7801\u91cf\u5c11\uff08\u6838\u5fc3\u903b\u8f91\u4ec5\u9700\u51e0\u767e\u884c\u4ee3\u7801\uff09\uff0c\u5bf9\u8bbe\u5907\u5185\u5b58\u3001CPU \u7684\u5360\u7528\u6781\u4f4e\uff0c\u751a\u81f3\u53ef\u5728 8 \u4f4d\u5355\u7247\u673a\u4e0a\u8fd0\u884c\u3002<\/li><\/ol>

      \u4e8c\u3001MQTT \u7684\u6838\u5fc3\u67b6\u6784\uff1a\u53d1\u5e03 \/ \u8ba2\u9605\uff08Pub\/Sub\uff09\u6a21\u5f0f<\/h2><\/div>
      MQTT \u4e0d\u91c7\u7528\u4f20\u7edf\u7684 \u201c\u5ba2\u6237\u7aef – \u670d\u52a1\u5668\u76f4\u63a5\u901a\u4fe1\u201d\uff08\u5982 HTTP \u7684\u8bf7\u6c42 \/ \u54cd\u5e94\u6a21\u5f0f\uff09\uff0c\u800c\u662f\u901a\u8fc7 \u201c\u53d1\u5e03 \/ \u8ba2\u9605\u201d \u6a21\u5f0f\u89e3\u8026\u8bbe\u5907\u95f4\u7684\u901a\u4fe1\uff0c\u6838\u5fc3\u5305\u542b 3 \u4e2a\u89d2\u8272\uff1a<\/div>
      <\/colgroup>
      \u89d2\u8272<\/div><\/td>
      \u6838\u5fc3\u529f\u80fd<\/div><\/td>
      \u5178\u578b\u793a\u4f8b<\/div><\/td><\/tr>
      \u53d1\u5e03\u8005\uff08Publisher\uff09<\/b><\/div><\/td>
      \u4ea7\u751f\u5e76\u53d1\u9001\u6d88\u606f\u7684\u8bbe\u5907 \/ \u5e94\u7528\uff0c\u4e0d\u5173\u5fc3\u8c01\u63a5\u6536\u6d88\u606f\uff08\u65e0\u76f4\u63a5\u4ea4\u4e92\uff09<\/div><\/td>
      \u6e29\u5ea6\u4f20\u611f\u5668\u3001\u667a\u80fd\u95e8\u9501\uff08\u53d1\u9001 \u201c\u95e8\u5df2\u6253\u5f00\u201d \u6d88\u606f\uff09<\/div><\/td><\/tr>
      \u8ba2\u9605\u8005\uff08Subscriber\uff09<\/b><\/div><\/td>
      \u4e3b\u52a8\u8ba2\u9605\u611f\u5174\u8da3\u7684\u6d88\u606f\u7c7b\u578b\uff0c\u4ec5\u63a5\u6536\u8ba2\u9605\u8fc7\u7684\u6d88\u606f<\/div><\/td>
      \u624b\u673a APP\uff08\u8ba2\u9605 \u201c\u5ba2\u5385\u6e29\u5ea6\u201d\uff09\u3001\u62a5\u8b66\u7cfb\u7edf\uff08\u8ba2\u9605 \u201c\u95e8\u9501\u5f02\u5e38\u201d\uff09<\/div><\/td><\/tr>
      ** broker\uff08\u670d\u52a1\u5668\uff09**<\/div><\/td>
      \u6838\u5fc3\u4e2d\u95f4\u4ef6\uff0c\u8d1f\u8d23\u63a5\u6536\u53d1\u5e03\u8005\u7684\u6d88\u606f\uff0c\u6839\u636e \u201c\u4e3b\u9898\uff08Topic\uff09\u201d \u7b5b\u9009\u5e76\u8f6c\u53d1\u7ed9\u5bf9\u5e94\u7684\u8ba2\u9605\u8005\uff0c\u662f \u201c\u53d1\u5e03 \/ \u8ba2\u9605\u201d \u6a21\u5f0f\u7684\u6838\u5fc3\u67a2\u7ebd<\/div><\/td>
      EMQX\u3001Mosquitto\u3001AWS IoT Core<\/div><\/td><\/tr><\/tbody><\/table><\/div>
      \u4e3e\u4e2a\u901a\u4fd7\u4f8b\u5b50<\/b>\uff1a<\/div>
      \u53d1\u5e03\u8005\u5982\u540c \u201c\u62a5\u793e\u201d\uff0c\u53ea\u8d1f\u8d23\u5370\u5237\u62a5\u7eb8\uff08\u53d1\u9001\u6d88\u606f\uff09\uff1b\u8ba2\u9605\u8005\u5982\u540c \u201c\u8ba2\u62a5\u4eba\u201d\uff0c\u53ea\u63a5\u6536\u81ea\u5df1\u8ba2\u9605\u7684\u62a5\u7eb8\uff08\u5982 \u201c\u4f53\u80b2\u62a5\u201d\u201c\u8d22\u7ecf\u62a5\u201d\uff09\uff1bBroker \u5219\u662f \u201c\u90ae\u5c40\u201d\uff0c\u8d1f\u8d23\u5c06\u4e0d\u540c\u7c7b\u578b\u7684\u62a5\u7eb8\u7cbe\u51c6\u9001\u5230\u5bf9\u5e94\u7684\u8ba2\u62a5\u4eba\u624b\u4e2d \u2014\u2014 \u62a5\u793e\u548c\u8ba2\u62a5\u4eba\u65e0\u9700\u77e5\u9053\u5f7c\u6b64\u7684\u5b58\u5728\uff0c\u5b8c\u5168\u7531\u90ae\u5c40\u8854\u63a5\u3002<\/div>

      \u4e09\u3001MQTT \u7684\u5173\u952e\u6838\u5fc3\u6982\u5ff5<\/h2><\/div>

      1. \u4e3b\u9898\uff08Topic\uff09\uff1a\u6d88\u606f\u7684 \u201c\u5206\u7c7b\u6807\u7b7e\u201d<\/h3><\/div>
      Topic \u662f MQTT \u4e2d\u6d88\u606f\u7684 \u201c\u5730\u5740\u6807\u8bc6\u201d\uff0c\u7528\u4e8e\u533a\u5206\u4e0d\u540c\u7c7b\u578b\u7684\u6d88\u606f\uff0cBroker \u901a\u8fc7 Topic \u5224\u65ad\u6d88\u606f\u8be5\u8f6c\u53d1\u7ed9\u54ea\u4e9b\u8ba2\u9605\u8005\u3002<\/div>
      • \u683c\u5f0f\u89c4\u5219<\/b>\uff1a\u7528\u659c\u6760\uff08\/\uff09\u5206\u9694\u5c42\u7ea7\uff0c\u652f\u6301\u591a\u5c42\u7ea7\u5206\u7c7b\uff0c\u4f8b\u5982\uff1a<\/li><\/ul>
          • home\/livingroom\/temperature\uff08\u5ba2\u5385\u6e29\u5ea6\uff09<\/li><\/ul><\/li><\/ul>
              • home\/bedroom\/light\uff08\u5367\u5ba4\u706f\u5149\u72b6\u6001\uff09<\/li><\/ul><\/li><\/ul>
                  • car\/engine\/speed\uff08\u6c7d\u8f66\u53d1\u52a8\u673a\u8f6c\u901f\uff09<\/li><\/ul><\/li><\/ul>
                    • \u901a\u914d\u7b26\u652f\u6301<\/b>\uff1a\u8ba2\u9605\u8005\u53ef\u901a\u8fc7\u901a\u914d\u7b26\u8ba2\u9605\u4e00\u7c7b\u6d88\u606f\uff08\u53d1\u5e03\u8005\u4e0d\u53ef\u7528\u901a\u914d\u7b26\uff09\uff1a<\/li><\/ul>
                        • +\uff1a\u5339\u914d\u5355\u4e2a\u5c42\u7ea7<\/b>\u7684\u4efb\u610f\u5185\u5bb9\uff0c\u4f8b\u5982 home\/+\/temperature \u53ef\u8ba2\u9605 \u201chome \u4e0b\u6240\u6709\u623f\u95f4\u7684\u6e29\u5ea6\u201d\uff08\u5982home\/livingroom\/temperature\u3001home\/bedroom\/temperature\uff09\u3002<\/li><\/ul><\/li><\/ul>
                            • #\uff1a\u5339\u914d\u5f53\u524d\u53ca\u4ee5\u4e0b\u6240\u6709\u5c42\u7ea7<\/b>\uff08\u4ec5\u80fd\u653e\u5728 Topic \u672b\u5c3e\uff09\uff0c\u4f8b\u5982 home\/# \u53ef\u8ba2\u9605 \u201chome \u4e0b\u6240\u6709\u6d88\u606f\u201d\uff08\u5305\u62ec\u6e29\u5ea6\u3001\u706f\u5149\u3001\u95e8\u9501\u7b49\uff09\u3002<\/li><\/ul><\/li><\/ul>

                              2. \u670d\u52a1\u8d28\u91cf\uff08QoS\uff09\uff1a\u6d88\u606f\u53ef\u9760\u6027\u7684 \u201c\u4fdd\u969c\u7b49\u7ea7\u201d<\/h3><\/div>
                              MQTT \u5b9a\u4e49\u4e86 3 \u79cd QoS \u7b49\u7ea7\uff0c\u7528\u4e8e\u5e73\u8861 \u201c\u6d88\u606f\u53ef\u9760\u6027\u201d \u548c \u201c\u7f51\u7edc\u5f00\u9500\u201d\uff0c\u9002\u914d\u4e0d\u540c\u573a\u666f\u7684\u9700\u6c42\uff1a<\/div>
                              <\/colgroup>
                              QoS \u7b49\u7ea7<\/div><\/td>
                              \u540d\u79f0<\/div><\/td>
                              \u6838\u5fc3\u903b\u8f91<\/div><\/td>
                              \u9002\u7528\u573a\u666f<\/div><\/td><\/tr>
                              QoS 0<\/b><\/div><\/td>
                              \u6700\u591a\u4e00\u6b21\uff08At Most Once\uff09<\/div><\/td>
                              \u53d1\u5e03\u8005\u4ec5\u53d1\u9001\u4e00\u6b21\u6d88\u606f\uff0c\u4e0d\u786e\u8ba4\u3001\u4e0d\u91cd\u53d1\uff1bBroker \u6536\u5230\u540e\u76f4\u63a5\u8f6c\u53d1\uff0c\u4e0d\u5b58\u50a8\u3002\u53ef\u80fd\u4e22\u5305\u3002<\/div><\/td>
                              \u975e\u5173\u952e\u6570\u636e\uff0c\u5982\u5b9e\u65f6\u6e29\u5ea6\u91c7\u96c6\uff08\u4e22\u4e00\u6761\u4e0d\u5f71\u54cd\u6574\u4f53\u76d1\u63a7\uff09\u3002<\/div><\/td><\/tr>
                              QoS 1<\/b><\/div><\/td>
                              \u81f3\u5c11\u4e00\u6b21\uff08At Least Once\uff09<\/div><\/td>
                              \u53d1\u5e03\u8005\u53d1\u9001\u6d88\u606f\u540e\uff0c\u9700\u7b49\u5f85 Broker \u7684 \u201c\u786e\u8ba4\uff08ACK\uff09\u201d\uff1b\u82e5\u672a\u6536\u5230 ACK \u5219\u91cd\u53d1\uff0c\u76f4\u5230\u6536\u5230\u4e3a\u6b62\u3002\u6d88\u606f\u53ef\u80fd\u91cd\u590d\uff0c\u4f46\u4e0d\u4f1a\u4e22\u5931\u3002<\/div><\/td>
                              \u5173\u952e\u4f46\u53ef\u5bb9\u5fcd\u91cd\u590d\u7684\u6570\u636e\uff0c\u5982\u8bbe\u5907\u62a5\u8b66\uff08\u786e\u4fdd\u62a5\u8b66\u5fc5\u5230\uff0c\u91cd\u590d\u53ef\u540e\u7eed\u53bb\u91cd\uff09\u3002<\/div><\/td><\/tr>
                              QoS 2<\/b><\/div><\/td>
                              \u6070\u597d\u4e00\u6b21\uff08Exactly Once\uff09<\/div><\/td>
                              \u91c7\u7528 \u201c\u56db\u6b21\u63e1\u624b\u201d \u673a\u5236\uff08\u53d1\u5e03\u8005\u2192Broker\u3001Broker\u2192\u53d1\u5e03\u8005\u786e\u8ba4\u3001Broker\u2192\u8ba2\u9605\u8005\u3001\u8ba2\u9605\u8005\u2192Broker \u786e\u8ba4\uff09\uff0c\u786e\u4fdd\u6d88\u606f\u4ec5\u88ab\u63a5\u6536\u4e00\u6b21\uff0c\u4e0d\u4e22\u5305\u3001\u4e0d\u91cd\u590d\u3002<\/div><\/td>
                              \u7edd\u5bf9\u4e0d\u80fd\u91cd\u590d \/ \u4e22\u5931\u7684\u6570\u636e\uff0c\u5982\u91d1\u878d\u4ea4\u6613\u3001\u8bbe\u5907\u6307\u4ee4\uff08\u5982 \u201c\u6263\u6b3e\u201d\u201c\u542f\u52a8\u8bbe\u5907\u201d\uff09\u3002<\/div><\/td><\/tr><\/tbody><\/table><\/div>

                              3. \u4f1a\u8bdd\uff08Session\uff09\u4e0e\u6301\u4e45\u5316<\/h3><\/div>
                              MQTT \u652f\u6301 \u201c\u4f1a\u8bdd\u6301\u4e45\u5316\u201d\uff0c\u786e\u4fdd\u8bbe\u5907\u79bb\u7ebf\u540e\u6d88\u606f\u4e0d\u4e22\u5931\uff1a<\/div>
                              • \u6301\u4e45\u4f1a\u8bdd\uff08Clean Session = 0\uff09<\/b>\uff1aBroker \u4f1a\u4fdd\u5b58\u8ba2\u9605\u8005\u7684\u8ba2\u9605\u5173\u7cfb\u548c\u672a\u9001\u8fbe\u7684 QoS 1\/2 \u6d88\u606f\uff1b\u5f53\u8ba2\u9605\u8005\u91cd\u65b0\u8fde\u63a5\u65f6\uff0cBroker \u4f1a\u5c06\u672a\u9001\u8fbe\u7684\u6d88\u606f\u8865\u53d1\uff0c\u4e14\u65e0\u9700\u91cd\u65b0\u8ba2\u9605\u3002<\/li><\/ul>
                                • \u4e34\u65f6\u4f1a\u8bdd\uff08Clean Session = 1\uff09<\/b>\uff1aBroker \u4e0d\u4fdd\u5b58\u8ba2\u9605\u5173\u7cfb\u548c\u672a\u9001\u8fbe\u6d88\u606f\uff1b\u8ba2\u9605\u8005\u65ad\u5f00\u8fde\u63a5\u540e\uff0c\u4f1a\u8bdd\u4fe1\u606f\u7acb\u5373\u5220\u9664\uff0c\u91cd\u65b0\u8fde\u63a5\u65f6\u9700\u91cd\u65b0\u8ba2\u9605\u3002<\/li><\/ul>

                                  4. \u4fdd\u7559\u6d88\u606f\uff08Retained Message\uff09<\/h3><\/div>
                                  \u53d1\u5e03\u8005\u53ef\u5728\u53d1\u9001\u6d88\u606f\u65f6\u8bbe\u7f6e \u201c\u4fdd\u7559\u6807\u5fd7\u201d\uff0cBroker \u4f1a\u4fdd\u5b58\u8be5 Topic \u7684\u6700\u65b0\u4e00\u6761\u4fdd\u7559\u6d88\u606f<\/b>\uff1a<\/div>
                                  • \u65b0\u8ba2\u9605\u8be5 Topic \u7684\u8ba2\u9605\u8005\uff0c\u65e0\u9700\u7b49\u5f85\u53d1\u5e03\u8005\u518d\u6b21\u53d1\u9001\uff0c\u4f1a\u76f4\u63a5\u6536\u5230 Broker \u4fdd\u5b58\u7684\u6700\u65b0\u4fdd\u7559\u6d88\u606f\u3002<\/li><\/ul>
                                    • \u4f8b\u5982\uff1a\u4f20\u611f\u5668\u6bcf\u9694 1 \u5c0f\u65f6\u53d1\u9001\u4e00\u6b21\u6e29\u5ea6\uff08\u4fdd\u7559\u6d88\u606f\uff09\uff0c\u65b0\u6253\u5f00\u7684 APP \u8ba2\u9605\u6e29\u5ea6 Topic \u65f6\uff0c\u4f1a\u7acb\u5373\u6536\u5230 1 \u5c0f\u65f6\u5185\u7684\u6700\u65b0\u6e29\u5ea6\uff0c\u65e0\u9700\u7b49\u5f85 1 \u5c0f\u65f6\u3002<\/li><\/ul>

                                      5. \u9057\u5631\u6d88\u606f\uff08Last Will and Testament, LWT\uff09<\/h3><\/div>
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                                      • \u82e5\u8bbe\u5907\u5f02\u5e38\u65ad\u5f00\u8fde\u63a5<\/b>\uff08\u5982\u65ad\u7535\u3001\u7f51\u7edc\u4e2d\u65ad\uff0c\u672a\u53d1\u9001 \u201c\u65ad\u5f00\u8fde\u63a5\uff08DISCONNECT\uff09\u201d \u6307\u4ee4\uff09\uff0cBroker \u4f1a\u81ea\u52a8\u5c06 \u201c\u9057\u5631\u6d88\u606f\u201d \u53d1\u9001\u5230\u9884\u8bbe\u7684 \u201c\u9057\u5631 Topic\u201d\u3002<\/li><\/ul>
                                        • \u4f8b\u5982\uff1a\u667a\u80fd\u95e8\u9501\u8fde\u63a5\u65f6\u8bbe\u7f6e \u201c\u9057\u5631\u6d88\u606f = \u79bb\u7ebf\u201d\u201c\u9057\u5631 Topic=home\/door\/state\u201d\uff0c\u82e5\u95e8\u9501\u65ad\u7535\uff0cBroker \u4f1a\u5411\u8ba2\u9605\u8be5 Topic \u7684\u624b\u673a APP \u53d1\u9001 \u201c\u79bb\u7ebf\u201d \u6d88\u606f\uff0c\u63d0\u793a\u7528\u6237\u95e8\u9501\u5f02\u5e38\u3002<\/li><\/ul>

                                          \u56db\u3001MQTT \u7684\u901a\u4fe1\u6d41\u7a0b\uff08\u7b80\u5316\u7248\uff09<\/h2><\/div>
                                          \u4ee5 \u201c\u6e29\u5ea6\u4f20\u611f\u5668\u5411\u624b\u673a APP \u53d1\u9001\u6e29\u5ea6\u201d \u4e3a\u4f8b\uff0c\u6838\u5fc3\u6d41\u7a0b\u5982\u4e0b\uff1a<\/div>
                                          1. \u8fde\u63a5\u9636\u6bb5<\/b>\uff1a\u6e29\u5ea6\u4f20\u611f\u5668\uff08\u53d1\u5e03\u8005\uff09\u548c\u624b\u673a APP\uff08\u8ba2\u9605\u8005\uff09\u5206\u522b\u4e0e Broker \u5efa\u7acb TCP \u8fde\u63a5\uff08MQTT \u57fa\u4e8e TCP \u534f\u8bae\uff0c\u786e\u4fdd\u5e95\u5c42\u901a\u4fe1\u53ef\u9760\uff09\uff0c\u5e76\u5728\u8fde\u63a5\u65f6\u6307\u5b9a \u201cClean Session\u201d\u201cLWT\u201d \u7b49\u53c2\u6570\u3002<\/li><\/ol>
                                            1. \u8ba2\u9605\u9636\u6bb5<\/b>\uff1a\u624b\u673a APP \u5411 Broker \u53d1\u9001 \u201c\u8ba2\u9605\u8bf7\u6c42\u201d\uff0c\u6307\u5b9a\u8981\u8ba2\u9605\u7684 Topic\uff08\u5982home\/livingroom\/temperature\uff09\u548c QoS \u7b49\u7ea7\uff08\u5982 QoS 1\uff09\uff1bBroker \u786e\u8ba4\u540e\uff0c\u4fdd\u5b58 APP \u7684\u8ba2\u9605\u5173\u7cfb\u3002<\/li><\/ol>
                                              1. \u53d1\u5e03\u9636\u6bb5<\/b>\uff1a\u6e29\u5ea6\u4f20\u611f\u5668\u91c7\u96c6\u5230 \u201c25\u2103\u201d \u540e\uff0c\u5411 Broker \u53d1\u9001 \u201c\u53d1\u5e03\u8bf7\u6c42\u201d\uff0c\u5305\u542b Topic\uff08home\/livingroom\/temperature\uff09\u3001\u6d88\u606f\u5185\u5bb9\uff08\u201c25\u201d\uff09\u3001QoS \u7b49\u7ea7\uff08QoS 1\uff09\u3002<\/li><\/ol>
                                                1. \u8f6c\u53d1\u9636\u6bb5<\/b>\uff1aBroker \u6536\u5230\u53d1\u5e03\u8005\u7684\u6d88\u606f\u540e\uff0c\u68c0\u67e5\u8be5 Topic \u7684\u8ba2\u9605\u8005\u5217\u8868\uff0c\u5c06\u6d88\u606f\u8f6c\u53d1\u7ed9\u624b\u673a APP\uff1bAPP \u6536\u5230\u6d88\u606f\u540e\uff0c\u5411 Broker \u53d1\u9001 ACK \u786e\u8ba4\uff08QoS 1 \u8981\u6c42\uff09\u3002<\/li><\/ol>
                                                  1. \u65ad\u5f00\u9636\u6bb5<\/b>\uff1a\u82e5\u8bbe\u5907\u65e0\u9700\u901a\u4fe1\uff0c\u53ef\u4e3b\u52a8\u5411 Broker \u53d1\u9001 \u201cDISCONNECT\u201d \u6307\u4ee4\uff0c\u65ad\u5f00 TCP \u8fde\u63a5\uff1b\u82e5\u5f02\u5e38\u65ad\u5f00\uff0cBroker \u89e6\u53d1 LWT \u673a\u5236\u3002<\/li><\/ol>

                                                    \u4e94\u3001MQTT \u7684\u5178\u578b\u5e94\u7528\u573a\u666f<\/h2><\/div>
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                                                    • \u667a\u80fd\u5bb6\u5c45<\/b>\uff1a\u4f20\u611f\u5668\uff08\u6e29\u5ea6\u3001\u6e7f\u5ea6\u3001\u4eba\u4f53\u611f\u5e94\uff09\u5411\u7f51\u5173\u53d1\u9001\u6570\u636e\uff0c\u7f51\u5173\u8f6c\u53d1\u7ed9\u624b\u673a APP\uff1bAPP \u5411\u667a\u80fd\u706f\u3001\u7a7a\u8c03\u53d1\u9001\u63a7\u5236\u6307\u4ee4\u3002<\/li><\/ul>
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                                                        • \u8f66\u8054\u7f51\uff08V2X\uff09<\/b>\uff1a\u8f66\u8f7d\u8bbe\u5907\u5411\u4e91\u7aef\u53d1\u9001\u8f66\u8f86\u72b6\u6001\uff08\u901f\u5ea6\u3001\u6cb9\u91cf\uff09\uff0c\u4e91\u7aef\u5411\u8f66\u8f86\u63a8\u9001\u5bfc\u822a\u3001\u9884\u8b66\u4fe1\u606f\uff1b\u8f66\u8f86\u4e4b\u95f4\u901a\u8fc7 MQTT \u4ea4\u6362\u8def\u51b5\u6570\u636e\u3002<\/li><\/ul>
                                                          • \u8fdc\u7a0b\u533b\u7597<\/b>\uff1a\u533b\u7597\u8bbe\u5907\uff08\u8840\u7cd6\u4eea\u3001\u5fc3\u7387\u76d1\u6d4b\u4eea\uff09\u5411\u533b\u9662\u5e73\u53f0\u53d1\u9001\u60a3\u8005\u6570\u636e\uff0c\u5e73\u53f0\u5411\u8bbe\u5907\u53d1\u9001\u6821\u51c6\u6307\u4ee4\u3002<\/li><\/ul>
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                                                              \u516d\u3001\u5e38\u89c1\u7684 MQTT Broker \u4e0e\u5ba2\u6237\u7aef\u5de5\u5177<\/h2><\/div>
                                                              • Broker\uff08\u670d\u52a1\u5668\uff09<\/b>\uff1a<\/li><\/ul>
                                                                  • \u5f00\u6e90\uff1aMosquitto\uff08\u8f7b\u91cf\u7ea7\uff0c\u9002\u5408\u5c0f\u578b\u573a\u666f\uff09\u3001EMQX\uff08\u9ad8\u5e76\u53d1\uff0c\u652f\u6301\u767e\u4e07\u7ea7\u8fde\u63a5\uff0c\u9002\u5408\u4f01\u4e1a\u7ea7\u573a\u666f\uff09\u3001ActiveMQ\u3002<\/li><\/ul><\/li><\/ul>
                                                                      • \u4e91\u670d\u52a1\uff1aAWS IoT Core\u3001\u963f\u91cc\u4e91 IoT \u5e73\u53f0\u3001\u817e\u8baf\u4e91 IoT Explorer\u3002<\/li><\/ul><\/li><\/ul>
                                                                        • \u5ba2\u6237\u7aef\u5de5\u5177\uff08\u8c03\u8bd5 \/ \u6d4b\u8bd5\uff09<\/b>\uff1a<\/li><\/ul>
                                                                            • MQTT X\uff08\u8de8\u5e73\u53f0\uff0c\u56fe\u5f62\u5316\u754c\u9762\uff0c\u652f\u6301\u53d1\u5e03 \/ \u8ba2\u9605\u3001QoS \u8bbe\u7f6e\uff09\u3001MQTT.fx\u3001mosquitto_sub\/mosquitto_pub\uff08\u547d\u4ee4\u884c\u5de5\u5177\uff09\u3002<\/li><\/ul><\/li><\/ul>
                                                                              \u7efc\u4e0a\uff0cMQTT \u534f\u8bae\u901a\u8fc7 \u201c\u8f7b\u91cf\u7ea7\u8bbe\u8ba1\u201d\u201c\u53d1\u5e03 \/ \u8ba2\u9605\u89e3\u8026\u201d\u201c\u7075\u6d3b\u7684 QoS \u4fdd\u969c\u201d\uff0c\u5b8c\u7f8e\u89e3\u51b3\u4e86\u7269\u8054\u7f51\u573a\u666f\u4e2d\u8bbe\u5907\u8d44\u6e90\u6709\u9650\u3001\u7f51\u7edc\u4e0d\u7a33\u5b9a\u7684\u6838\u5fc3\u75db\u70b9\uff0c\u6210\u4e3a\u8fde\u63a5 \u201c\u7269\u4e0e\u7269\u201d\u201c\u7269\u4e0e\u4eba\u201d \u7684\u5173\u952e\u901a\u4fe1\u6807\u51c6\u3002<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

                                                                              MQTT \u534f\u8bae\u6982\u5ff5\u8be6\u89e3 MQTT\uff08Mes […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[8],"tags":[],"class_list":["post-69","post","type-post","status-publish","format-standard","hentry","category-8"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.yichon.com\/index.php\/wp-json\/wp\/v2\/posts\/69","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.yichon.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.yichon.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.yichon.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.yichon.com\/index.php\/wp-json\/wp\/v2\/comments?post=69"}],"version-history":[{"count":10,"href":"https:\/\/www.yichon.com\/index.php\/wp-json\/wp\/v2\/posts\/69\/revisions"}],"predecessor-version":[{"id":136,"href":"https:\/\/www.yichon.com\/index.php\/wp-json\/wp\/v2\/posts\/69\/revisions\/136"}],"wp:attachment":[{"href":"https:\/\/www.yichon.com\/index.php\/wp-json\/wp\/v2\/media?parent=69"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.yichon.com\/index.php\/wp-json\/wp\/v2\/categories?post=69"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.yichon.com\/index.php\/wp-json\/wp\/v2\/tags?post=69"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}