Computerized Metering Device: The Intelligent Core of Power Metering!

Computerized Metering Device is an advanced power metering device based on microprocessor (CPU) and digital signal processing technology. It uses high-precision sensors (such as current transformer CT, voltage transformer PT) to collect voltage and current analog signals of the power grid, converts them into digital signals through analog-to-digital converter (ADC), and then uses the built-in computing chip to perform high-speed and complex calculations based on precise algorithms (such as fast Fourier transform FFT), ultimately achieving accurate metering, data storage, statistical analysis and information interaction of power.

Its core functions are reflected in several key dimensions:

High-precision metering: The core of Computerized Metering Device is to accurately measure and accumulate the power consumed or generated by users (active, reactive, apparent power, etc.), including time-based metering (peak, valley and flat), with an accuracy far exceeding that of traditional mechanical meters.

Multi-function recording and analysis: It can not only record the total power, but also record in detail various power grid parameters such as load curve (power changes over time), maximum demand (power peak within a specific time), voltage and current effective value/harmonic component, power factor, etc. This provides valuable data for power quality monitoring, load management and equipment fault diagnosis.

Rate management and prepayment: Supports flexible multi-period, multi-rate (peak and valley) electricity price mechanism for accurate billing; in the prepayment mode, realizes power purchase settlement, insufficient balance warning and automatic power-off control for arrears.

Communication and data interaction: Equipped with a variety of communication interfaces (RS485, infrared, carrier, wireless, etc.), it is the basic unit of remote meter reading (AMR/AMM) and advanced metering system (AMI), realizing automatic data upload, remote parameter setting, fault information reporting and receiving control instructions (such as remote on and off).

Anti-theft and event recording: It has powerful anti-theft function, can monitor abnormal cover opening, pressure loss, current loss, reverse power, current imbalance, magnetic field interference and other events and accurately record the occurrence time, effectively protecting the rights and interests of the power supplier. At the same time, it records the device's own operating status (such as zeroing, programming, power-on, power-off and other events).

Computerized Metering Device is the core technology carrier of modern smart grid and energy management. In a digital and intelligent manner, it not only undertakes basic electricity metering and billing tasks, but also supports advanced applications such as intelligent electricity management, grid operation optimization, and demand-side response through powerful data collection, processing, and communication capabilities. It has become an indispensable "smart eye" for the digital transformation of the power system.