Disturbance-free household meter corresponding checking device and method based on very low frequency technology

Abstract

The invention discloses a disturbance-free household meter corresponding checking device and method based on a very low frequency technology. The disturbance-free household meter corresponding checking device comprises an ultra-low frequency signal transmitter and an ultra-low frequency signal receiver. The ultralow-frequency signal transmitter comprises a man-machine interface, a modulation signal generator, a carrier signal generator, a power amplifier, an output protector, a transmitter power supply and a transmitting antenna, and the ultralow-frequency signal receiver comprises a receivingantenna, a pre-amplifier, a band-pass filter, an ultralow-frequency amplifier, a demodulation signal generator, a display and a receiver power supply. According to the invention, the ultra-low frequency signal is loaded into the power supply cable through the power supply line; in a residential building, a wireless receiver is used along the way of a cable and at the entrance of the cable; and the coded signal sent by the transmitter is received, the effective signal by the receiver is demodulated, and the determination of the one-to-one correspondence cable relationship between the transmitter and the receiver is completed, thereby quickly and accurately judging whether the missort and the common zero phenomenon exist or not, and the specific position of the missort.

Description

technical field [0001] The invention relates to a corresponding checking device for household meters, which belongs to the field of very low frequency. Background technique [0002] In view of the phenomenon of low-voltage users colluding frequently in the current power supply service process, it is becoming more and more urgent to develop an instrument that can locate the location of the colluding households and apply it to the power lines of residential buildings. At present, there are mainly methods for checking electric energy meters connected to households, such as simple jumping load switch or adding coincidence method, multimeter line inspection method, low-voltage line carrier analysis method, etc. Several methods have their own advantages and disadvantages, and they all require household inspection. Under today's lifestyle, it is often impossible to be sure that someone is at home, which brings great trouble to the investigation of low-voltage collusion, resulting i...

AI Technical Summary

Problems solved by technology

At present, there are mainly methods for checking electric energy meter serial households, such as simple jumping load switch or adding matching methods, multimeter line checking method, low-voltage line carrier analysis method, etc. Several methods have their own advantages and disadvantages, and they all need to be inspected at home.

Under today's lifestyle, it is often impossible to be sure that someone is at home, which brings great trouble to the investigation of low-voltage cross-connection phenomenon, resulting in low efficiency

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