云消息队列 MQ协议下载的相关内容

MQTT协议问题之OTA升级包下载如何解决

问题一：OTA升级包如何通过MQTT协议下载 OTA升级包支持MQTT和HTTP协议进行下载，HTTP协议中会返回升级包的下载路径url，但是MQTT协议中如何利用推送的信息获取下载包？ { "code":"1000", "data":{ "size":432945, "version":"2.0....

Mqtt协议问题之下载如何解决

问题一：标准的Mqtt协议在哪里可以下载？标准的Mqtt协议在哪里可以下载？参考回答： https://www.iso.org/obp/ui/en/#iso:std:iso-iec:20922:ed-1:v1:en 关于本问题的更多回答可点击原文查看：https://developer.aliy...

RocketMQ 5.0学习资料

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Apache RocketMQ：如何从互联网时代演进到云

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带您快速了解阿里云消息队列RocketMQ 5.0版

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[帮助文档] MQTT协议保留消息的概念、交互过程及使用场景_物联网平台(IoT)

保留消息用于确保新订阅Topic的设备能及时收到最新状态的消息，即使消息在设备订阅之前发布。服务端向Topic发布消息时，如果消息携带保留标记（Reatin），物联网平台将会保存这个消息并实时发布给订阅者，后续订阅该Topic的设备都会收到保留消息。保留消息在MQTT 3.1.1标准中就已定义，阿里...

[帮助文档] MQTT协议遗嘱消息的概念、交互过程及使用场景_物联网平台(IoT)

MQTT协议的遗嘱消息，用于在设备离线时向其他设备告知其已离线。如果设备异常断开且在一段时间内未重连，物联网平台会代为发送遗嘱消息。遗嘱消息在MQTT 3.1.1标准中已定义，阿里云物联网平台在MQTT 5.0接入时支持这个特性。本文为您介绍遗嘱消息的概念、交互过程及使用场景。

[帮助文档] 设备如何使用MQTT云网关与物联网平台连接并进行通信

MQTT协议云网关采用标准的MQTT协议，支持使用自定义证书、服务端单向认证、设备端OCSP、设备和服务端双向安全接入和证书管理等能力。本文介绍物联网平台具体的MQTT协议云网关能力，及设备如何使用MQTT云网关与物联网平台连接并进行通信。

问：使用MQTT协议给单个设备进行OTA升级过程中，设备请求下载文件分片，阿里云无响应topic

小白提问：为什么使用MQTT协议给单个设备进行OTA升级时，设备请求下载文件分片，阿里云没有下发响应Topic？升级的设备为：STM32F103+esp8266 过程一：本人在使用MQTT协议给单个设备进行OTA升级过程中。使用平台提供的升级流程进行升级操作，如下图所示。(注：本人使用的是MQTT...

[帮助文档] 如何将设备接入物联网平台

设备通过MQTT协议云网关接入物联网平台时，设备身份可以由自定义证书认证，设备可以使用证书中CN信息进行注册。本文以MQTT协议云网关三方认证的阿里云FC认证为例，介绍如何将设备接入物联网平台。

[帮助文档] 如何将MQTT协议云网关设备模拟接入物联网平台并上报数据

本文以Windows系统下MQTT.fx为例，介绍如何将MQTT协议云网关设备模拟接入物联网平台，并上报数据。

OTA升级包如何通过MQTT协议下载

OTA升级包支持MQTT和HTTP协议进行下载，HTTP协议中会返回升级包的下载路径url，但是MQTT协议中如何利用推送的信息获取下载包？ { "code":"1000", "data":{ "size":432945, "version":"2.0.0", "isDiff":1, "signMe...

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