协议云消息队列 MQ 的相关内容

物联网协议之MQTT

MQTT简介MQTT 可以简单看做一个网络协议，用于机器对机器的通信（与客户端到服务器的传输有点区别）。智能传感器、可穿戴设备和其他物联网（IoT）设备通常必须通过带宽有限的资源受限网络传输和接收数据。这些物联网设备使用 MQTT 进行数据传输，因为它易于实施，并且可以有效地传输物联网数据。MQTT...

[帮助文档] MQTT协议保留消息的概念、交互过程及使用场景

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...

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协议遗嘱消息的概念、交互过程及使用场景

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。

物联网协议比较 MQTT CoAP RESTful/HTTP XMPP

物联网协议ProtocolCoAPXMPPRESTful HTTPMQTTTransportUDPTCPTCPTCPMessagingRequest/ResponsePublish/Subscribe Request/ResponseRequest/ResponsePublish/Subscribe...

直播小程序源码有用的协议知识：MQTT协议

MQTT协议分析： MQTT协议中文全称为消息队列遥测传输协议，是一种实时通信协议，适用于物联网场景中。MQTT协议被应用到直播小程序源码平台中，确保了直播小程序源码平台音视频流的传输高效、低延迟，为直播小程序源码平台实现相关的实时互动功能提供了帮助。 MQTT协议在直播小程序源码的多种作用当然，...

工业物联网协议对比：MQTT Sparkplug vs OPC-UA

引言工业系统需要确保数据的无缝交换，因此对于高效、安全的通信协议具有极高的依赖性。MQTT Sparkplug 和 OPC UA 是两个经常被提到的工业协议。本文将全面比较 MQTT Sparkplug 和 OPC UA 以及它们的衍生版本，帮助您更清楚地了解哪种协议更适合您的需求。 OPC Cl...

[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。

物流网首选协议，关于 MQTT 你需要了解这些

MQTT 协议简介概览MQTT 是一种基于发布/订阅模式的轻量级消息传输协议，专门针对低带宽和不稳定网络环境的物联网应用而设计，可以用极少的代码为联网设备提供实时可靠的消息服务。MQTT 协议广泛应用于物联网、移动互联网、智能硬件、车联网、智慧城市、远程医疗、电力、石油与能源等领域。MQTT 协议由...

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