Network protocol conversion method for power grid system and intercommunication method of power grid system

Abstract

The invention discloses a network protocol conversion in a power grid system and a mutual communication method thereof. The protocol conversion is connected to a host running a virtualization concentrator through an Ethernet interface through an Ethernet; it receives and processes the protocol sent from the virtual concentrator Ethernet meter reading message; send the DL645 protocol message through the 485 bus; send back according to the Ethernet meter reading protocol. The power line network system includes a main node and several sub-nodes, and the main node and each sub-node are interactively connected through power lines. The master node is interactively connected with the upper computer application platform terminal through the RS232 interface. The several sub-nodes are interactively connected with the field application equipment through the RS485 interface. The electric network system and its protocol conversion and communication method described in the present invention can solve the deficiencies in the prior art, improve the speed of sending and receiving data at each node of the power line network system, ensure the timeliness of data message transmission in the PLC networking, and make the PLC Networking applications are more flexible and reliable.

Description

technical field [0001] The invention belongs to the technical field of power grids, and in particular relates to a network protocol conversion and a mutual communication method in a power grid system. Background technique [0002] With the advancement of science and technology, the construction of power grids is being carried out increasingly deeply and comprehensively, and power communication technology is the key to the application of power grids. Because the power line carrier communication method uses the power line network as the transmission medium, it has the advantages of high channel reliability, strong anti-destructive ability, and low investment, and plays an irreplaceable role in the construction of the power grid. With the introduction of the concept of building a strong power grid and the power Internet of Things in the country, the current low-speed carrier based on FSK, PSK and S-FSK modulation modes can no longer meet the requirements of using the carrier fo...

AI Technical Summary

Problems solved by technology

This has little effect on the message transmission speed when the application layer protocol frame message length is short, but when the application layer protocol message length is long, after all the nodes receive it, due to the limit on the length of the carrier frame transmitted on the power line, Segmented transmission is also required. This feature of receiving and then sending in segments makes the carrier communication speed that is not time-sensitive already slower.

[0006] 3. Generally, in the application of PLC network networking for data transmission, the application protocol is relatively fixed and single, not flexible enough

In order to meet the requirements of long-distance data transmission and the accuracy of data, generally only a low rate of 1200 is used to realize the centralized reading of electric meters during on-site installation. In addition, the 485 bus can only support the communication method of one question and one answer, resulting in Inefficiency of metering automatic meter reading business

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