MQTT Protocol and Implementation of Equipment Management System for Industrial Internet of Things

At present, industrial systems run in a closed space, which makes it difficult to share data among systems. This problem can be effectively solved by using cloud on industrial equipment Many communication protocols are involved in the cloud on industrial equipment. This paper focuses on the research of MQTT protocol, working protocol, topic service message structure, etc., and realizes the understanding of MQTT working mechanism. MQTT message structure and byte composition are used to grab MQTT protocol packets by Wireshark tool, and compare and verify whether the results are consistent with the results of grabbing protocol packets; Write PHP code, subscribe to the corresponding JSON file, read and save the data in the JSON file in the designed database. Design the device management system of the Internet of Things cloud platform including data storage and data display modules, visually present the data collected by the device for visitors to view the data at any time, and realize efficient data transmission and processing.