Advantages of prepaid power sales management system
management mode
With the development of smart grid, a new green prepaid power consumption management model has emerged. This management mode consists of a prepaid power sales management system and a prepaid energy meter. Under the control of the smart grid, this prepayment process can improve power supply efficiency, reduce energy loss, improve power supply quality, and solve the commercial operation of the power grid. At the same time, it enriches the cash flow of power operation enterprises, promotes their investment and implementation in energy-saving and emission-reduction industries, and realizes energy-saving and emission-reduction.
Enhance users' awareness of energy saving
The prepaid electricity sales management system in developed countries and regions has generally implemented stepwise incremental electricity prices for residents. The more electricity used, the higher the electricity price, the more steps are set, and the greater the range, the better the effect. At the same time, peak and valley electricity prices are implemented, energy storage appliances (such as electric water heaters) are used to avoid peak electricity consumption, and power utilization rates are increased in low valleys to reduce power supply costs per unit of electricity. The promotion of the stepped electricity price is mainly to make the electricity price structure more reasonable under the premise of ensuring the provision of universal power services, so as to reflect the difference in power supply costs of different users, reduce cross-subsidies among power users, and guide users to save electricity and increase electricity consumption. efficiency. Today, when energy and environmental problems are becoming more and more prominent, the tiered electricity price charging standard can curb unreasonable demand. In addition to reflecting social equity, it is also more conducive to encouraging residents to save electricity and reduce energy waste. This is of great significance for promoting the reform of resource product prices and environmental protection fees, promoting structural adjustment, and promoting resource conservation and environmental protection.
Increase the proportion of electricity in energy consumption
The promotion and popularization of prepaid electricity sales management system and prepaid energy meter can firstly improve the ability of the energy system to adapt to the development of different types of clean energy, promote the development and consumption of clean energy, and provide a platform for the extensive development of clean energy. Secondly, it can make electric energy more rationally utilized by end users, transform energy consumption concepts and methods, and adapt to the development requirements of a low-carbon economy.
Construction of prepaid electricity sales management system
Software System Structure Design
The RFID-based prepaid energy meter management system adopts Microsoft Visual Studio.NET development platform, SQL Server database and serial port communication technology, which can modernize the electricity consumption of all users in the area and facilitate users to purchase electricity. The prepayment system has the functions of prepaid electricity sales and energy meter operation monitoring, including six functions of system maintenance, employee information management, electricity consumption analysis, electricity sales business management, report printing, and user information management.
Employee Information Management
Employee information management means that during the system initialization process, each system operator fills in some basic information, such as: name, gender, date of birth, contact number, operating authority, etc. Employee information management can help the power consumption management department to manage the system operators. The employee information management will record all the time and authority to log in or use the system, so that the point-of-use management department can keep abreast of the working conditions of the employees in the community under its jurisdiction. The design will be able to effectively ensure that all electricity sales records are well documented.
User Information Management
In this system, each electric energy meter corresponds to a radio frequency card. When installing an electric energy meter, first define customer-related information, including customer name, address, contact number, and electricity type, etc., and then define electric energy meter information on the basis of customer information, including electric energy meter model, type asset number And the related parameters of the electric energy meter, etc.; finally determine which area is managed. First, the staff at the electricity sales point checks the customer information, fills in the above information into the database, and assigns a user number to each user, and writes the energy meter number into the radio frequency card. The main purpose of system information management is to define the information of customers and electric energy meters, and the relationship between electric energy meters and customers, so that the monitoring personnel can conveniently and quickly determine the monitoring targets.
Power consumption analysis
The power consumption analysis function mainly includes the following two aspects, the analysis of electricity sales history records and the analysis of energy meter safety records. Through the analysis of the electricity sales history of the users under their jurisdiction, the power consumption management department can understand the user's electricity consumption habits and recharge cycle, so as to manage the users in groups. The RFID-based prepaid energy meter has a powerful storage function. In addition to recording the electricity, it can also be used to record the working status of the energy meter, and these records are stored in E2ROM memory, and the data will not be lost after power failure. These records are called safety records. The safety record of the energy meter consists of event records and load curves, where event records include system events, fault events, etc., and load curves include active power, reactive power, current, voltage, etc. Energy meter monitoring is to conduct current and rapid analysis of the data after the energy meter data is acquired. It can monitor the events that occur in the set energy meter at a certain time. The so-called event record means that when some parameters of the multi-function electric energy meter are abnormal, record the time when the abnormal situation occurs and the state of the electric energy meter at that time, so as to analyze the cause of the abnormality and replenish the electricity and can judge whether there is electricity theft.
system maintenance
System maintenance includes the following five specific functions: database recovery, database backup, electricity sales record maintenance, user information maintenance, and system key update. The electricity sales point can store business records, user personal information records, and meter monitoring records separately to achieve standardized system management. In order to further improve the security of the system, the key update function is added in the system design and development process, and the user's recharge key is regularly updated and maintained.
Electricity sales business management
Power sales business management mainly includes two aspects, power purchase statistics query and power purchase transaction. Electricity purchase statistics inquiry is to inquire about energy meter information, user information, electricity consumption monitoring situation and electricity consumption analysis results according to the user number on the radio frequency card. Such as querying all abnormal conditions, querying by electric energy meter or querying by time, querying by abnormal conditions, etc. In this way, the user can obtain the corresponding information data conveniently and quickly.
report output
The energy meter monitoring system can customize corresponding reports according to user requirements. Users can output relevant information data in reports according to their needs, and archive them in the form of files.
Design of Serial Port Communication Software in Management System
The prepaid management system has two functions of prepaid electricity sales and electric energy meter management, so the communication module of the system is also divided into two parts, one part is the electric energy meter monitoring communication module following the DLMS/COSEM communication protocol, which mainly refers to The infrared photoelectric interface exchanges information with the energy meter, and the other part is a communication module following the STS prepaid electricity sales management protocol, which is mainly used for communication between the upper computer of the electricity sales system and the radio frequency card.
Management system operation interface
The operation interface of this system is divided into three types: login management interface, system initialization main interface and electricity sales operation main interface. When the system is running, enter the login management interface, and determine the operation to be completed in the next step according to the authority level of the employee. If the employee authority is an administrator, they can enter the system initialization interface to initialize the entire system; if the employee authority is an administrator or operator, they can directly enter the main interface of electricity sales operation to complete the electricity sales operation of the system.
Ankerui prepaid product application scenarios
Function
Prepaid meter electricity charge collection, control, arrears trip; provide post-payment management module; energy consumption analysis module;
Water meter prepaid water fee collection, control, arrears to close the valve;
Collection of rent and property fees, and arrears;
Shared electricity charges in public areas;
Access to meter reading and metering in public areas and substations;
Prepayment + building energy consumption, classified and sub-item energy measurement integrated system;
Centralized financial management and control of property/real estate groups, separate authority for sub-properties;
The wireless solution is easy to modify and easy to debug
product model
conclusion
To sum up, the prepaid electricity sales system is customized according to the characteristics of prepaid electricity meters, and provides electricity purchase and sales management functions. It not only has the advantages of platform and system architecture, but also provides a standard user service interface. Users can easily The construction of this system will further facilitate the electricity users.