CN104376647A - Real-time charging system used for electric power - Google Patents

Abstract

The invention discloses a real-time fee calculation system for electric power, which includes a database server, an application server, an encryption front-end server and a storage device, and adopts a distributed B/A/S multi-layer system structure, and the database server, the application server Layered deployment with clients. The purpose of improving safety under the premise of low cost is achieved.

Description

Real-time billing system for electricity

technical field

The invention relates to the field of electric power, in particular to a real-time billing system for electric power.

Background technique

At present, with the popularization of network intelligence, smart meters have become a development trend, but the current network security affects the popularity of smart meters. The security of the encrypted data of the existing smart meter using the logic encryption card is poor, and the cost of using the PSAM module is high and difficult to maintain.

Contents of the invention

The object of the present invention is to propose a real-time billing system for electric power in view of the above problems, so as to realize the advantage of improving safety under the premise of low cost.

In order to achieve the above object, the technical scheme adopted in the present invention is:

A real-time billing system for electric power, including a database server, an application server, an encrypted front-end server and a storage device, adopts a distributed B/A/S multi-layer architecture, and performs data processing on the database server, application server and client layered deployment;

The database server: used to save the electric energy parameters collected by the electric energy meter, and update in real time according to the data collected by the electric energy meter;

The application server: reads and writes the data in the smart card configured and configured by the electric energy meter, and provides a customer-oriented operation interface;

The encryption front-end server: connected between the database server and the application server, after the user inserts the smart card into the application server, when the user uses the application server to access the corresponding parameters stored in the database server, the encryption front-end server needs to Complete the reading and writing of the smart card;

The storage device: used for backing up data in the database server.

Optimized, when the user purchases electricity, he pays through cash and bill settlement. The payment amount and the adjustment amount are accumulated to form the electricity purchase fund, and the electricity purchase fund and the number of times of electricity purchase are written into the smart card and the bill is printed;

When the user purchases electricity, the system needs to verify whether the old meter has settled the electricity fee;

The advance payment that the user has paid when purchasing electricity can convert the user's ordinary advance payment into electricity purchase funds and write it into the smart card by adjusting the electricity fee;

The adjustment of the electricity fee is when there is a difference between the system’s pre-collected balance and the pre-collected balance in the table. In order to ensure that the system’s pre-collected balance is consistent with the remaining amount in the table, this part of the difference is calculated and adjusted for the user. The reasons for the difference are divided into three categories: normal adjustments, system adjustments and special adjustments;

The normal adjustment mainly refers to the adjustment of electricity charges caused by ordinary advance collection and refund of electricity charges;

The system adjustment mainly refers to the difference in electricity fee algorithm, the difference in meter reading of the remaining amount, and the difference caused by the failure to recharge in time;

The special adjustment is mainly to deal with some special situations, and additional maintenance can be performed, and it will be charged into the meter when purchasing electricity. The special situation refers to other situations in the normal adjustment and system adjustment.

The technical solution of the present invention has the following beneficial effects:

In the technical solution of the present invention, the system is encrypted by means of an encryption machine through the encryption front-end server, and at the same time, a storage device is set to perform safe backup of data. The maintenance cost of the encryption machine is relatively low, thereby achieving the purpose of improving security under the premise of low cost.

The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

Description of drawings

Fig. 1 is a functional block diagram of a real-time billing system for electricity according to an embodiment of the present invention.

Detailed ways

The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

As shown in Figure 1, a real-time billing system for electricity includes database servers, application servers, encryption front-end servers, and storage devices. Layered deployment of application servers and clients;

Database server: used to save the electric energy parameters collected by the electric energy meter, and update in real time according to the data collected by the electric energy meter;

Application server: read and write the data in the smart card configured by the energy meter, and provide a customer-oriented operation interface;

Encrypted front-end server: connected between the database server and the application server. After the user inserts the smart card into the application server, when the user uses the application server to access the corresponding parameters stored in the database server, the smart card needs to be read through the encrypted front-end server. Write;

Storage device: used to back up data in the database server.

When the user purchases electricity, he pays by cash and bill settlement. The payment amount and the adjustment amount are accumulated to form the electricity purchase fund. The electricity purchase fund and the number of electricity purchases are written into the smart card and the bill is printed; when the user purchases electricity, the system needs to update the old meter. Check whether to settle the electricity bill; for the advance payment that the user has paid when purchasing electricity, the user’s ordinary advance payment can be converted into electricity purchase funds and written into the smart card by adjusting the electricity fee; the adjustment of electricity fee is the difference between the system’s advance collection balance and the advance collection balance in the table In order to ensure that the system’s advance receipt balance is consistent with the remaining amount in the table, this part of the difference is calculated and adjusted for the user. The reasons for the difference are divided into three categories: normal adjustment, system adjustment and special adjustment; normal adjustment mainly refers to ordinary advance receipt and refund Electricity fee adjustments caused by supplementary electricity charges; system adjustments mainly refer to differences in electricity fee calculations, differences in meter reading of the remaining amount, and differences caused by untimely recharge; special adjustments are mainly to deal with some special situations, and additional maintenance can be performed, which can be recharged when purchasing electricity In the table, the special conditions refer to other conditions in the normal adjustment and system adjustment.

Card meter electricity customers purchase electricity at the business counter or collection outlets with electricity sales card reading and writing equipment. If it is the first electricity purchase after the meter is installed, the user does not have a smart card (electricity purchase card), and needs to issue the card first. , write the user information into the card. The user provides a media card to purchase electricity, and the system reads the card to obtain user information, calculates the adjusted electricity fee due to factors such as meter replacement and zero crossing, and provides two sources of funds for electricity purchase:

When the user purchases electricity this time, he pays through cash, bills and other settlement methods. The payment amount and the adjusted amount are accumulated to form the electricity purchase fund. The electricity purchase fund and the number of electricity purchases are written into the card and the receipt is printed. If the preset electricity fee for meter installation is not collected during the process, it will be charged together when purchasing electricity for the first time.

When purchasing electricity, it is necessary to verify whether the old meter has settled the electricity bill.

When the user purchases electricity, he has already paid the advance payment through other methods, and the user's ordinary advance payment can be converted into electricity purchase funds and written into the card by adjusting the electricity fee.

To adjust electricity charges, when there is a difference between the system’s pre-collected balance and the pre-collected balance in the table, in order to ensure that the system’s pre-collected balance is consistent with the remaining amount in the table, the system calculates this part of the difference through an algorithm and adjusts it to the user. The reasons for the difference can be roughly divided into Three categories: normal adjustment, system adjustment and special adjustment.

Normal adjustment mainly refers to the adjustment of electricity charges caused by ordinary advance collection and refund of electricity charges through other channels. For example, ordinary advance payments paid by other channels will be charged into the card as adjusted electricity charges and converted into electricity purchase funds.

System adjustment mainly refers to the difference caused by the difference in the electricity fee algorithm, the difference in the remaining amount of meter reading, and the untimely recharge. The lag in meter reading is not synchronized with the electricity time for calculating the electricity bill of the system; another example is that the card is not recharged in time after the electricity purchase, but it coincides with the meter reading day, and only the remaining amount before the electricity purchase is copied back.

The special adjustment is mainly to deal with some special situations, and additional maintenance can be carried out. When purchasing electricity, it is also charged into the meter, which is a technical means added to deal with special situations.

Power purchase redemption:

If the user has not reinserted the meter after purchasing electricity, and needs to withdraw it due to charging errors, errors in printing bills, etc., the electricity purchase can be reversed, and the last electricity purchase information before the electricity purchase can be written into the card.

It should be noted that the reversal must meet the rules of charging reversal (for example, the reversal cannot be reversed the next day, the reversal cannot be reversed after the payment is made, etc.), and it must also be restricted that the card has not been reinserted into the meter.

To adjust the electricity rate:

Since there is no frozen objective fact in the remaining amount table, and the remaining amount is a constantly changing dynamic value, there are some difficulties in adjusting the calculation of electricity charges, if there is no cooperation with the number of electricity purchases, no matter in terms of electricity charge review or electricity purchase. , can not be very accurate, but in the current situation, the balance in the table and the system will definitely exist. If the user is not adjusted, the error will become larger and larger, so the adjustment is still necessary. The system adjusts the balance received in advance, and the adjustment value is always just to make the balance in the user table closer to the balance in the system, and the power outage is more accurate.

Adjust the electricity rate formula:

Basic formula: According to the above principles, the formula for adjusting electricity charges is as follows:

Adjusted electricity fee = available balance (system available balance) - remaining balance (remaining amount in the table),

1. Available balance = total amount of unfrozen advance receipts - arrears;

2. The remaining balance = the remaining amount of the latest meter reading + the accumulated recharge amount after meter reading.

1) Cumulative recharge amount after meter reading = cumulative recharge amount - cumulative recharge amount at the last meter reading:

Formula description: The most difficult calculation of this formula is the remaining amount in the table. Since the remaining amount in the table changes in real time, and the user's settlement is periodic, the remaining amount of the system is offset according to the user's settlement cycle The balance, so the adjustment of the electricity fee can only be adjusted in the settlement cycle. The "accumulated recharge amount after meter reading" in the calculation of the remaining amount is the remaining amount of the meter after all the electricity purchase amount has been charged into the card after the last meter reading. The advance receipt balance in the system is the same, there is no difference, and the system balance and the balance in the table offset each other, so the difference is for the remaining amount of the latest meter reading.

Explanation of the problem: This formula handles single household when purchasing electricity, which can reduce the pressure on electricity bill issuance, and is not limited by whether the last electricity Inserting the meter, the formula will lead to the adjustment of electricity charges this time, and the user will be charged more for electricity. Although the formula can be corrected again after the second meter reading, it is a bit late, but judging from the current analysis, there is no way Determine whether to recharge before the last meter reading, but in order to reduce this situation, it is recommended to simulate the recharge based on the above companies, and choose the one with the smallest difference between the two.

Finally, it should be noted that: the above is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still The technical solutions recorded in the foregoing embodiments may be modified, or some technical features thereof may be equivalently replaced. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (2)

1. the real-time calculation charge system for electric power, it is characterized in that, comprise database server, application server, encryption front server and memory device, adopt distributed B/A/S multi-tier systematic structure, layering deployment is carried out to database server, application server and client;

Described database server: for preserving the electrical energy parameter that electric energy meter gathers, and carry out real-time update according to the data of electric energy meter collection;

Described application server: electric energy meter is expected that the data configured in the smart card of setting carry out read-write operation, and customer-oriented operation interface is provided;

Described encryption front server: be connected between database server and application server, after smart card is inserted application server by described user, user uses application server to when being stored in that in database server, corresponding parameter conducts interviews, and needs the read-write completing smart card through encryption front server;

Described memory device: the data be used in backup database server.

2. the real-time calculation charge system for electric power according to claim 1, it is characterized in that, by cash and the payment of pay-in slip clearing form during user's power purchase, after the payment amount of money and the adjustment amount of money add up, form power purchase fund, by in power purchase fund and power purchase number of times write smart card, printed tickets;

During user's power purchase, system needs whether settle accounts the electricity charge to old table and verifies;

Paid advance during user's power purchase, by the adjustment electricity charge, the common advance of user is transferred in power purchase fund write smart card;

When the described adjustment electricity charge are the advance remaining sums of system with advance remaining sum generation difference in table, in order to ensure that the advance remaining sum of system is consistent with remaining sum in table, calculated by this part beat-frequency meter and adjust to user, the reason of difference is divided three classes: normal adjustment, system call interception and special adjustment;

Described normal adjustment mainly refers to common advance and move back and mend the adjustment electricity charge that cause of the electricity charge;

Described system call interception mainly refers to electricity charge algorithm difference, remaining sum checks meter difference, do not supplement the difference caused in time with money;

Described special adjustment is mainly some special circumstances of process, and can carry out additional maintenance, be filled with in the lump in table during power purchase, described special circumstances refer to other situation in normal adjustment and the situation described in system call interception.