Patent WO-2020055286-A1 (WO)
Title: Static smart electricity meter
Inventor: Semenenko Boris Yakovlevich
IPC: G01R21/133
Filed: 2019-09-13
Abstract: The invention relates to digital electronic equipment for measuring electrical values and to devices for monitoring, metering and analyzing the production or consumption of electrical energy in single-phase and three-phase alternating current circuits, and can be used in different economic, scientific and technical fields, at electric power facilities and by electrical energy consumers (users), in automated measuring and information gathering systems for monitoring and metering electrical energy and other types of energy sources and for the wide-scale collection of data and information from different end devices, including meters, transducers, sensors and detectors for various types of energy sources, motion, position and actions performed, as well as other smart devices, and for the centralized software processing of said data and information. The present device comprises: a housing; a mains rectifier; a reference supply voltage stabilizer; a microcontroller for managing the supply of power and performing master resets; a back-up power supply; a terminal plate for a power circuit and a load circuit; measuring elements for measuring voltage and current according to the number of phases and the neutral; modules for the analog processing of differential voltage and current input signals; operational analog signal amplifier modules with programmable amplification and feedback; multi-channel analog-to-digital converter modules comprising integrators, comparators, summators, analog-to-digital converters and feedback; modules for the digital processing of incoming digital streams; digital signal decimation modules; phase compensation modules; digital filter modules comprising high-pass, fixed frequency, low-pass and selective harmonic filters; modules for automatically calibrating digital signals; a digital signal processor with address, data and control buses; a reference signal timing module; a module for galvanically isolating digital signals; an output peripheral interface module; an output pulsed telemetry signal module; an output pulsed test signal module; a metrological non-volatile memory module; a module for galvanically isolating interprocessor communication; a central microprocessor for control, applications and application programs; a clock signal generating module; a universal time master clock module; an independent power supply of the universal time clock; a computing logic synchronization module; a master frequency generator module; an electronic reader interface module; an information display module; a control interface module; a keyboard touch pad and a user button; a non-volatile memory interface module; a non-volatile, standard and urgent events memory module; a non-volatile automatic self-diagnosis memory module; a non-volatile communication connections memory module; an additional functions interface module; a module of sensors for monitoring normal and urgent events; a module of automatic self-diagnosis sensors; a module of sensors of temperature, pressure and humidity; a module of sensors of external influences; a module of opening (tamper) sensors; a module of technical loss (theft) sensors; a digital communication interface gateway module; a lower level communication interface module; low-energy short-range digital wireless communication equipment modules; a first upper level digital communication interface module; long-range digital wireless communication equipment modules; a second upper level digital communication interface module; digital near field communication and radio frequency identification modules; a function indication interface module; optical RGB LED indicators; a differential transformer; modules for monitoring an alternating current circuit; sensitive element modules; a module of a differential protection power switch with pole contacts according to the number of phases and the neutral. The technical result is an increase in functional capabilities, and an increase in the accuracy, resolution and speed of synchronized vector measurements of basic parameters of an alternating current circuit.