Industrial internet of things information transmission method and device based on DL/T645 protocol

Abstract

The invention discloses an industrial IoT information transmission method and device based on the DL / T645 protocol. The present invention uses widely distributed power lines as the medium of information transmission, greatly reduces factory operating costs, reduces the cost of setting up new communication networks, and meets the requirements for the development of intelligent manufacturing. With the DL / T645 protocol as the main communication protocol, the power carrier module adopts BPLC technology, which can fully guarantee the real-time, efficient, safe and stable transmission of data, and effectively monitor and control the electrical equipment, instruments and The sensor provides stable data transmission hardware, which improves the level of factory monitoring and management. At the same time, in order to overcome the characteristics of high noise, high time variation and high attenuation on the power line channel in the harsh industrial power environment, OFDM modulation is used to optimize the carrier Transceiver circuit, improve its working performance. The invention has the advantages of simple method, convenient maintenance, plug and play, low cost and good use effect.

Description

technical field [0001] The invention relates to the technical field of electric power communication, in particular to an industrial IoT information transmission method and device based on the DL / T645 protocol. Background technique [0002] Industrial production is making great strides into the era of intelligence and automation. Today, China's traditional manufacturing industry has a large proportion, and its low-cost competitive advantage is gradually losing. It is imminent to introduce the "Industry 4.0" development strategy plan. The purpose of "Industry 4.0" is to realize smart factories based on cyber-physical systems, fully integrate all aspects of the manufacturing industry with the Internet, form an industrial Internet, and realize "smart" manufacturing in China. Smart factories require real-time control of the operating status of each field device and the operating environment of the factory to provide a higher level of monitoring and management. However, the curre...

AI Technical Summary

Problems solved by technology

[0003] At present, the communication methods used in the field of industrial automation include USART, Modbus, CAN bus, network broadband, ZigBee, etc. These methods have poor real-time performance, low speed, and network Complex construction, difficult maintenance, and high construction costs are not suitable for rapid promotion in harsh industrial power consumption environments, and cannot meet the needs of modern intelligent manufacturing

Images