Wattmeter

Abstract

The wattmeter includes following modules: reception module for receiving signals from electric power administration center in real time, including rate for current period; control module connected to the said reception module; rate update module of storing and updating current rate, and updating the rate based on command from connected control module; electric power measure module connected to control module for metering power consumption of each user's unit, energy charge is calculated from power consumption in unit period and rate for each time period. It is not needed for setting up a clock to find out rate for corresponding time period, and easy to correct improper operation of advance payment.

Description

technical field [0001] The invention relates to electronic equipment, in particular to an electric meter. Background technique [0002] With the vigorous transformation of the power infrastructure construction by the national power department to meet the needs of the majority of users for power, the difference between peak power consumption and low-peak power consumption has become very obvious. Many local power departments feel the power consumption during peak hours Insufficient resources, and power resources are not fully utilized during off-peak hours, resulting in a great waste of resources. Therefore, the electric power sector is promoting electricity meters that use built-in clocks and store electricity price information tables for peak and valley periods (some are divided into three or four periods). The electricity consumption degree of the time period. [0003] The "Wireless Paging Multi-function Watt-hour Meter" with the application number 00115334.X once disclo...

AI Technical Summary

Problems solved by technology

[0005] First, the electric meter needs to store a large amount of multi-rate data. When the multi-rate data needs to be updated, the power department needs to transmit a complete multi-rate table, thereby bringing new benefits to the update and transmission of the multi-rate data. great inconvenience;

[0006] Second, a clock needs to be set in the meter to provide the current time, so as to retrieve the multi-tariff information of the corresponding time period according to the current time, so that a corresponding clock calibration device needs to be set up to check the clock, thus bringing clock calibration Trouble

[0007] Third, the meter uses wireless paging to perform prepayment operations. Due to the unreliability of signal transmission in wireless communication, once the transmission signal is wrong or lost, it is very likely that the user's prepayment operation will be incomplete or fail, resulting in user failure. Dispute with Power Management Center

And the above meter, when the user has doubts about the prepayment process, there is no way to confirm whether the prepayment information has been stored in the meter, so for the user, there is a disadvantage that the prepayment process cannot be checked in time.

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