物联网平台云消息队列 MQ 的相关内容

阿里云物联网平台之MQTT.fx连接不上的问题

容易出问题的重要的四个参数： 1.Broker Address：${YourProductKey}.iot-as-mqtt.${YourRegionId}.aliyuncs.com ${YourProductKey}：请替换为设备所属产品的ProductKey。可登录物联网平台控制台，在对应实例的设...

阿里云物联网平台基于MQTT.fx完成OTA升级

1.首先用Mqtt.fx测试上下行消息 2.升级准备通过inform Topic上报当前设备版本 3.触发升级操作之后，设备会收到物联网平台OTA服务推送的固件的URL地址，通过HTTPS协议根据URL下载固件 4.通过progress topic设备端向服务端推送升级进度 5.固件升级后，info...

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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阿里云物联网平台使用mqtt.fx实现设备端功能测试

实现步骤 1.云控制台上创建一个产品及设备 2.mqtt.fx配置如果是独有实例下的设备，链接的Broker Address为独有实例连接地址，而非公共实例地址，公共实例的链接地址为${productKey}.iot-as-mqtt.cn-shanghai.aliyuncs.com 注意生成pas...

基于JMeter工具的IoT物联网平台MQTT服务性能压测实战

基于Jmeter压测IoT物联网平台的性能原始链接 https://mp.weixin.qq.com/s/p2zYb5g4buoQwpnT-cBXPQ 背景 MQTT 是超轻量级消息协议，用于连接移动端与云服务双向通信，广泛应用于物联网（IoT）领域，如设备向云端...

物联网平台 MQTT 设备到云消息的状态是500 怎么回事？

内容： {"Content":"Device publish message to topic:/a1NI08Jv7yY/DTU-7417C1AC218293B4/user/uplink,QoS=0,protocolMessageId:1","Reason":"server error."} 运行的...

物联网平台MQTT如何实现两个设备之间消息转发？？？

按照网上说的，创建了两个设备，并创建了规则引擎，但是消息还是无法从一个设备转发到另一个设备，用的mqtt.fx模拟

物联网平台 MQTT 设备名字 20个长度发送连接报文没有任何回复什么原因？

物联网平台 MQTT 设备名字 20个长度发送连接报文没有任何回复什么原因？长度为7时连接正常使用单片机通过 GPRS模块申请的数组是足够大的监控发出来的数据也是对的

物联网平台上，如果设备用MQTT连接到平台，并给平台上传了一个数字1，平台怎么自动回个数字2给设备

物联网平台上，如果设备给平台上传了一个数字1，平台怎么自动回个数字2给设备

arm开发板如何连接阿里云物联网平台mqtt？

单片机协调器把环境参数通过串口发给开发板，开发板连接阿里云物联网mqtt。可以告诉下思路，要用哪个sdk，或者有案例吗

物联网平台查看设备运行状态的数据使用什么MQTT topic上传数据才能看到

物联网平台创建产品和设备成功，产品添加了自定义的属性。使用python SDK模拟设备，页面查看设备的状态是在线，查看设备的运行状态，里面的自定义属性没有值，使用什么MQTT topic上传数据才能看到？

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