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Through the GPRS network system of China Mobile, the electric power department can transmit the electric power system data collected by industrial and civilian electricity meters to the centralized monitoring center at the local, municipal and provincial levels in real time, so as to realize the unified monitoring and distributed management of the electric power monitoring equipment. GPRS The network can provide a simple and efficient means of communication and transmission for the power system.
China Mobile’s GPRS system can provide wide-area wireless IP connections. Building a power and remote meter reading system on the mobile communication company’s GPRS service platform to realize wireless data transmission of meter data has the advantages of making full use of the existing network, shortening the construction period, and reducing the construction cost, and the equipment is easy to install and easy to maintain.
The GPRS power remote meter reading system is composed of the power distribution center located in the power bureau and the meter data collection point located in the residential area. It uses China Mobile’s existing GPRS/GSM network, and the meter data is transmitted through China Mobile’s GPRS/GSM network.
System components
CPU card meter
CPU card
Card Management System
Key Management System
Card Issuing Management System
Card test system
Electricity Sales Management System
Related sales equipment
introduction
Overview:
As there is still a situation of different provincial technical standards in the bidding of CPU card meters in various provinces, our company tailors products according to provincial standards and provides products in more than 10 provinces. In addition to meeting the basic functions of electric energy metering, CPU card power purchase and power control functions, etc. In addition to functions, among the product differences in various provinces, the differences in single-phase CPU card meters are mainly manifested in:
The metering method is optional for tiered electricity price, time-of-use billing
Communication mode saves 485 communication/infrared, optional carrier communication/GPRS
CPU card type optional contact/non-contact
Optional freeze battery
main feature:
★Security
Double backup of important data of electricity meter ESAM and EEPROM;
Multi-level key management to ensure controllable management of keys
The two-way authentication of the electric meter and the card is implemented to prevent counterfeit cards and counterfeit meters
Real-time data analysis and processing, monitoring on-site power consumption
★Reliability
High-quality raw materials, imported raw materials are used for key components
Reliable hardware design, rich experience in experimental handling of static electricity and high-frequency electromagnetic fields
Data three backup
Provides fault tolerance for incomplete operations caused by card insertion and removal too fast
Reliability design of trip circuit: multiple trip design;
★ Stability
Long-term application experience of hanging meters in large-scale, large-volume and various power-using environments (including rural power grids with very harsh conditions)
The watch has the characteristics of good consistency and stable accuracy in the production process
The long-term working accuracy of the watch is stable, and the long-term spot check accuracy is well recorded.Adapt to various on-site environments
★ Flexibility
Use emergency overdraft cards to solve emergency power consumption situations;
Support the on-site emergency meter replacement card to replace the meter, and seamlessly connect the user’s electricity purchase card;
The system is safe and open
The key management system, card issuance system, and electricity sales management system are important components of the CPU card prepayment system, which provides an important guarantee for realizing the functions of the entire prepayment system.
Huayu Card Management System has the following characteristics:
Support third-party card writer
Support multiple CPU card access
Support multi-home appliance meter manufacturing enterprise access
Support power MIS access
Support historical data (such as old card meter data) access
Provide financial-grade key management system
At the same time, it provides production test and provincial bureau card meter test system, and provides production and test support for provincial bureau level bidding
Provide detailed training materials and conduct training according to different functional departments
Key Management System
There is only one set of Huayu Key Management System in the province, which is responsible for the generation of key seeds. The software and hardware components of this system are CDMA based on spread spectrum technology, which occupies the brand-new 800M frequency band (GSM occupies the 900M frequency band), so it cannot Upgrade directly on the original GSM equipment. At present, China Unicom has optimized and upgraded the CDMA network through the construction of the second phase of the project. The network has been upgraded from IS95 to CDMA1x. At the same time, it has built a wireless data network covering 31 provinces (autonomous regions and municipalities) across the country.
Dedicated laptop
Dedicated safe
Serial or USB dual card reader reader
Several mother cards
Key Management System
Windows 2003/2000/XP Professional
Its characteristics are:
Using 16-byte key and advanced 3DES security algorithm to generate the key, the key cannot be read directly in any state.
Hierarchical key management system, hierarchical management, dedicated card, safe and reliable key seed generation
Centralized key generation, decentralized export, ciphertext transmission, key data line encryption, and special electric energy meter ESAM
Module mutual authentication, high security
Data reading and writing are controlled by a special key to prevent data leakage. The meter, card, and user correspond one by one. The card and meter have one card and one secret, and the keys are completely different.
The production and operation keys are separated to ensure that it has nothing to do with the production plant
Huayu’s key management system is compatible with multiple card manufacturers’ access, and supporting security management regulations have been fully implemented at the provincial bureau level.
Electricity Sales System
Its characteristics are:
Based on Oracle database
Electric meter
Provide access to power MIS system
Rich functions, simple operation, easy to master: it can realize basic functions such as daily account opening, meter allocation, electricity purchase, data modification, meter reading, and has humanized functions such as system data, historical record query, statistical report production, system parameter setting, etc.
PSAM card real-time authentication, high security
Special emergency handling functions, emergency electricity sales, emergency card replenishment, emergency reversal of accounts, emergency overdraft card production, on-site meter replacement card production, POS management, etc., can work effectively in various situations, timely and accurately record The electricity usage information returned from the user’s electricity usage card to monitor the occurrence of electricity theft
Powerful query and statistics functions, which can be combined with multiple conditions to query related data
Provides a convenient database backup function
Provides flexible, convenient and humanized solutions to some emergency situations; user-oriented, and the convenience of the user is the priority when solving problems, and try to avoid users running back and forth or running less.
ATM self-service cash payment machine
The self-service cash payment machine can be connected to various charging systems, such as the IC card pre-payment system, which integrates self-service cash payment, pre-paid meter card self-recharge, self-service historical record query, multimedia business promotion query, and self-service printing functions, which are compatible with various The electric energy card provides an easy, convenient, fast, safe and reliable payment environment for various types of payment users.
Features:
Self-service payment and payment receipt printing function expansion, business expansion, payment service integration, real-time monitoring terminal, real-time monitoring of network status, monitoring camera, personnel monitoring, accounting processing, real-time reconciliation, daily reconciliation, creation of accounting statements, database backup, local redundant backup, remote redundant copy, wearable Wall style and lobby style are available
POS machine
It can read the user’s electricity purchase card and check card data on the spot, modify the emergency overdraft card overdraft limit, and can be used for on-site troubleshooting of the card meter, the user’s night power purchase, the user’s emergency power use, and the use in an emergency to ensure normal work. With memory function, the reader can store the current transmission mode and save the data even after shutting down. Password protection mechanism: The reader has a device password protection function. If the reader password is set to be valid, you must verify that the password is correct every time you turn on the device before it can be used.
It has the function of uploading and downloading data parameters, downloading the required related information, and uploading the data of the electricity sold.
Smart IC card reader
It is powerful, convenient and easy to use, and stable in performance, which greatly improves the safety and work efficiency of the system, and is convenient for application and operation.
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