Full automatic calibrating device of electric energy meter and calibrating method thereof

Abstract

The invention relates to a full automatic calibrating device of a electric energy meter, and a paster-type electronic tag is arranged on the seam of cover of a programming switch of the electric energy meter. The inner of the paster-type electronic tag is provided with an inductive antenna and a chip circuit. The chip circuit comprises a transmission circuit, a receiving circuit, a decoding circuit, a microprocessor and a memorizer. The inductive antenna is respectively connected with the receiving circuit and the transmission circuit. The transmission circuit, the decoding circuit, the microprocessor and the memorizer form a data input circuit, and the memorizer, the microprocessor, the decoding circuit and the transmission circuit form a data output circuit. When the cover of the programming switch of the electric energy meter is opened illegally, the paster-type electronic tag loses efficacy and normal reading and writing of the reader-writer of the electronic tag is failed. The invention achieves convenient maintenance, in addition, the information of the electric energy meter can be read by a reader, thereby realizing the full automatic calibrating of the electric energy meter.

Description

technical field [0001] The invention relates to electric energy meter verification, in particular to a fully automatic electric energy meter verification device and a verification method thereof. Background technique [0002] Traditionally, in order to prevent illegal external changes, electric energy meters are protected by lead seals at key positions. The forms of lead seals include traditional lead blocks and relatively advanced electronic lead seals (ie, electronic tags). These lead seals need Use a tamper-resistant steel wire to pass through the middle of the lead seal. This form of lead seal is effective to prevent external damage, but because the electric energy meter, especially the smart electric energy meter, needs to remove the lead seal on the cover of the electric meter programming switch when testing, press the programming switch to perform some specified functions. For the test, due to the different shapes of the programming switches of the electric energy me...

AI Technical Summary

Problems solved by technology

This form of lead seal is effective to prevent external damage, but because the electric energy meter, especially the smart electric energy meter, needs to remove the lead seal on the cover of the electric meter programming switch when testing, press the programming switch to perform some specified functions. For the test, due to the different shapes of the programming switches of the electric meter, it is impossible to automatically seal the lead through mechanical equipment, so at present, the lead seal is manually sealed, so that the automatic verification of the electric energy meter cannot be carried out.

Images