System for detecting electronic tag on low voltage current transformer calibration line and method thereof

Abstract

The invention relates to a system for detecting an electronic tag on a low voltage current transformer calibration line and a method thereof. The system comprises a conveying belt, a stop position, a barcode scanner, an RFID antenna, an RFID reader-writer, a secret key management unit, an electric control programmable logic controller PLC, a host, a displayer and a metal shell. The detection method comprises the steps that the RFID reader-writer performs identity authentication on the electronic tag and performs MAC authentication on the information stored in the read electronic tag and compares the information through MAC authentication and barcode information of the electronic tag read by the barcode scanner; as for the successfully compared electronic tag, transformer calibration information of the electronic tag is read from a database server by the host, the calibration information is encrypted by using the secret key management unit and the RFID reader-writer is controlled to write encryption information in the electronic tag and perform authentication; and the host acquires an electronic tag transaction secret key from the secret key management unit and controls the RFID reader-writer to write the transaction secret key in the electronic tag and perform identity authentication.

Description

technical field [0001] The invention relates to the technical field of electric energy measurement, and more specifically, to a system and method for detecting electronic tags on a low-voltage current transformer verification assembly line. Background technique [0002] The low-voltage current transformer is an important part of the electric energy metering device. Its accuracy is related to the vital interests of the majority of power users and the economic interests of the power grid enterprises, and affects the high-quality service level and social image of the power grid. In recent years, it is very common to steal electricity by replacing transformers and forging transformer nameplates. In order to prevent such electricity theft, the State Grid Corporation of China requires electronic labels to replace metal nameplates in the low-voltage current transformer enterprise standards. Before the low-voltage current transformer with electronic label is installed on site, it ne...

AI Technical Summary

Problems solved by technology

At present, there is a lack of automatic detection equipment for low-voltage current transformer electronic labels that can integrate various functions in the market.

Images