What is the principle of online payment for plug-in meters?

With the development of electric power industry, especially the implementation of one meter per household, it is convenient for users, but it also challenges the management of electric power enterprises. Traditional electric meters need manual meter reading, which is monotonous and hard, with bad environment, difficult meter reading and low efficiency; The arrears of electricity charges are serious and the collection rate is low, which affects the economic benefits and development of the power sector; Scheduling, operation and monitoring are integrated in one system, and the database is maintained independently. Lack of unified basic electricity consumption data leads to waste of resources, unsystematic decision-making and inability to maximize economic benefits.

Therefore, the modernization of power business is imperative. Practical experience has proved that the popularization and application of prepaid electricity meters and electricity sales systems can effectively avoid and control the phenomenon of arrears, fully improve the efficiency of copying, and make the power business management easy to manage and get twice the result with half the effort in a short time. Up to now, the development of international prepaid electricity sales system and electric energy meter has roughly experienced the following stages:

1, early memory card types, including IC memory cards and IC logic encryption cards.

2. Smart card types, including contact CPU cards and contactless radio frequency cards.

3. Coding key types, including key table integration, separation and carrier separation.

4. Network, including concentrator and GPRS/CDMA.

Short message type, power carrier type, etc. Smart meter is one of the core devices of smart grid, and its core function is to realize information exchange between power customers and power companies.

Therefore, the client must install smart meters that can collect electricity consumption information and process power grid information, and interact in two directions to realize intelligent remote newspaper reading and online payment. The principle of remote meter reading of smart meters is different in different environments.

Principle 1: At present, the power carrier meter is mostly used in State Grid, which is connected to the collector through wires, and the collector uploads data to the remote reading server through GPRS, so the resident users of State Grid can basically check their daily electricity consumption by holding power.

Principle 2:

The smart meters in large buildings are all connected by RS485 bus, and the collectors are connected by RS485 bus, and then converted into TCP/IP network cables, which are directly copied to the server. There are many businesses that provide this system, such as the direct integration of the building for the society.

Principle 3: At present, many youth apartments, white-collar apartments and serviced apartments are using wifi meters. These meters are directly connected to the wifi remote meter reading server in the apartment, and of course there are gprs meters, which are used when smart meters are not used much. This usage can be directly installed by buying an electric meter online, and then directly used by app software.

Principle 4: The future real Internet of Things smart meter, NB-IoT meter, is an immature product that Huawei and operators are pushing. That is, the smart meter is directly connected to the remote reading server through the NB-IoT network. With the transformation of the management mode of electricity sales and consumption, China has gradually developed three types of prepayment systems for electricity charges: IC card prepayment system, keyboard watt-hour meter prepayment system and automatic meter reading system. The following figure shows the scheme of prepaid IC card electric meter system.

The system mainly includes the following parts:

1, prepaid series watt-hour meter

2. Prepaid IC card

3, read and write card device

4. Electric Power Sales Management Information System. Bank network power sales system. Through the scheme of electric energy pre-charging system, we can clearly see that there is no difference between taking electricity and withdrawing money from ATM at this time. Money is taken from ATM machines, and electricity is taken from smart meters. ATM and smart meters are the ultimate executors.

You have to deposit money in the account of the power grid company through the bank or the power grid business hall before you can convert it into electricity. When you pay the fee successfully, there will be protocol data transmission between the bank server and the power grid server, and the power grid system will tell the smart meter your recharge amount after knowing the amount of data you recharge.

As we said just now, smart meters are the ultimate executors. It knows how much electricity you charge, how much electricity you use every moment, and will remind you when there is no electricity. When there is no power, it will automatically cut off the power supply, and when it is charged, it will automatically renew the power. The data of smart meters will be continuously exchanged with the power grid server, and in this process, the functions of remote meter reading and prepayment can be realized.