17 lines
387 B
Markdown
17 lines
387 B
Markdown
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```mermaid
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sequenceDiagram
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participant Device
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participant Broker
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participant Web
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Device->>Broker: 建立TCP连接
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Broker->>Broker: 5s未注册，主动断开
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Device->>Broker: 注册报文
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Broker->>Device: 注册回复
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Device->>Broker: 心跳报文
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Broker->>Device: 心跳报文
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Web->>Broker: 创建Session
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Broker->>Device: 创建Session
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```
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