Acquisition method and system for running data of power grid equipment

Abstract

The invention provides an acquisition method and an acquisition system for running data of power grid equipment, and achieves collection and wireless transmission of the running data of the power gridequipment in an area that an existing network is incapable to cover. Different transmission terminals are distinguished via IP addresses, so that the multiple transmission terminals access communication links with a receiving terminal in a TDMA manner, and communicate with the receiving terminal, and thus the receiving terminal can simultaneously acquire the running data of one or more pieces ofpower grid equipment from the multiple transmission terminals. During the communication process of each multi-access transmission terminal and the receiving terminal, the receiving terminal performs error checking on each received data packet via CRC cyclic redundancy checking, and coordinates retransmitted data packets that are unsuccessfully received by using an automatic retransmission request(ARQ); and after all the data packets are successfully received, the receiving terminal performs MD5 message digest algorithm integrity checking on the whole file, and finally, the accurate, efficient, secure and reliable collection and wireless transmission of the running data of the power grid equipment are achieved.

Description

technical field [0001] The invention relates to the technical field of power system state monitoring and wireless communication, in particular to a method and system for acquiring operation data of power grid equipment. Background technique [0002] With the construction of smart grid and the urgent need for stable power for industrial and residential power consumption, real-time and accurate monitoring of grid equipment operation data is becoming increasingly important, and substation system automation is becoming an unchangeable trend. However, in the field of inspection of substations in the power industry, manual inspection is still the main method for areas where existing private and public networks cannot cover. In the manual inspection method, the staff comprehensively use the senses and some supporting testing instruments to inspect the substation equipment based on simple qualitative judgments. Therefore, this method has defects such as high labor intensity, scatter...

AI Technical Summary

Problems solved by technology

[0003] From the perspective of the demand for grid equipment data detection applications, the wireless monitoring and transmission technology of grid equipment operation data can be targeted and successfully solved for temporarily established grid equipment monitoring sites, substations built in remote areas, and a considerable number of construction in urban areas. Small and medium-sized distribution stations and other scenarios that do not have the conditions for laying optical fiber communication, the construction of traditional wired communication networks has problems such as difficult construction, high construction costs, and inflexible networking

[0004] However, due to the wide variety of power equipment in the substation, the scattered locations, and the complex electromagnetic environment around the substation during operation, these put forward higher requirements for the wireless collection and transmission technology of power grid equipment operation data

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