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MQTT和Modbus协议对比
本文介绍了两种物联网补充协议:用于短距离设备连接的本地协议 Modbus 以及支持物联网进行全局通信的可扩展互联网协议 “消息队列遥测传输 (MQTT)”。 Modbus 是一个串行通信协议,首次出现于 1979 年,是连接行业设备实际使用的标准协议。MQTT 早在 20 年前便已 ...
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