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Intelligent electric meter centralized recharging terminal and control method thereof

A technology of a smart electric energy meter and a control method, which is applied in the direction of measuring electrical variables, parts of electrical measuring instruments, measuring devices, etc., can solve problems such as inconvenient recharging operation of smart electric meters, and reduce transmission failure problems and intermediate transmission links. , the effect of improving reliability

Active Publication Date: 2011-05-25
STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST +1
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to design a centralized recharging terminal for intelligent electric energy meters including a control method for controlling the intelligent recharging terminal, in order to reduce intermediate transmission links, reduce transmission failures, and improve communication reliability; overcome the shortcomings of local fee-controlled electric meters and remote recharging , to solve the problem that the user is inconvenient to recharge the smart meter

Method used

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  • Intelligent electric meter centralized recharging terminal and control method thereof
  • Intelligent electric meter centralized recharging terminal and control method thereof
  • Intelligent electric meter centralized recharging terminal and control method thereof

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Embodiment 1

[0032] see Figure 1 to Figure 11 , the present invention comprises CPU, the LCD display interface circuit that is connected with CPU corresponding port, button circuit, sound interface circuit, memory circuit, and the power supply circuit that supplies power for each circuit, also includes IC card interface circuit, ESAM module circuit and two groups of RS485 Communication module interface circuit, IC card interface circuit completes communication with the user card interface, and sends data information to the CPU, ESAM module circuit completes data exchange and reset operations, encryption, decryption and calculation of various security authentication operations, two sets of RS485 communication modules The interface circuits are respectively connected with two groups of asynchronous serial communication ports of the CPU, and the CPU respectively realizes communication with the smart energy meter and the collector through these two groups of asynchronous serial communication p...

Embodiment 2

[0046] The chip of described CPU adopts PIC18F6627, and all the other are identical with embodiment 1.

[0047] The recharging operation process of the present invention is as follows: when the smart recharging terminal is normally idle, the power information of each user is cyclically displayed, and it can also be quickly turned to query and display by pressing the button. It will enter the prompt display interface, and then enter the normal idle loop display until no user is prompted. After the user inserts the power purchase card, the intelligent recharge terminal enters the user card query interface after judging that the card meets the legal requirements. If the "recharge" button is pressed, the intelligent centralized recharge terminal will check the recharge amount and recharge times in the user's power purchase card according to the relevant security operation procedures. Transmit to the smart meter through RS485. After the smart meter receives the data and judges it i...

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Abstract

The invention provides an intelligent electric meter centralized recharging terminal and a control method thereof, relating to the technical field of combination of electrical equipment and computers. The terminal comprises an IC card interface circuit, an embedded secure access module (ESAM) circuit and two communication module interface circuits, wherein the IC card interface circuit is connected with a CPU via ICREST and ICIO pins; the ESAM circuit is connected with the CPU via data and reset pins SAMIO and SAMRST; the two communication module interface circuits are respectively connected with the CPU, realize communications with an intelligent electric meter and a collector and can monitor communication data between the collector and the electric meter in real time and forward the data; the IC card interface circuit completes communications with user card interfaces; and the ESAM circuit completes data exchange and reset operations and various safety certification operations such as encryption, decryption and operation. A program module for the intelligent electric meter centralized recharging terminal is also designed. The terminal has the following advantages and beneficial effects: normal communications of the system are ensured; and the operations are convenient, simple, safe and reliable.

Description

technical field [0001] The invention relates to the technical field of combining power equipment and computers, in particular to a centralized recharging terminal for smart electric energy meters and a control method thereof. Background technique [0002] At present, there are two ways to recharge the smart meter, one is to recharge through the power purchase card inserted into the smart meter, and the other is to recharge remotely through communication. The former smart meter inserted through the power purchase card is called a local fee-controlled meter, which is safe and reliable. However, if the meter is installed in a dark place and in a place where the operation does not change, especially in modern cities, in high-rise buildings, the meter is installed in a strong electric well. , it is very difficult for the user to recharge the meter; the latter remote recharge is mainly for the smart meter with remote recharge. The converter is transmitted to the smart meter being...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G07F15/06
CPCG01R1/30G07F15/003G01R22/063
Inventor 刘鹍张嘉岷唐勇白泰殷善锋王姝
Owner STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST
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