1. System Overview

         Electric energy measurement is an important link in the modern electric power marketing system, and the traditional electric energy settlement relies on manual to regularly copy data to the site, and there are many deficiencies in real-time, accuracy and applicability. The combination of modern communication technology, computer technology and electrical energy measurement technology can reflect the electricity usage (ie sales) in a timely, accurate and comprehensive manner. This solution is a wireless communication technology based on GPRS network communication, which collects electricity data and other (required) information in real time and reliably. By applying system software with intelligent analysis functions, statistics and usage of electricity consumption in residential communities are realized. Analysis of electricity situation and user's usage status.
  
       Through the GPRS wireless local area network, provide real-time and high-stability data and event records for power management, which can realize the function of multiple meters simultaneously freezing meter reading. The system has the function of remotely reading back the device parameters, such as the comparison between the readback parameters and the setting parameters saved by the background system, and the abnormal alarm, which can discover the illegal act of illegally modifying the parameters of the energy meter. It has the functions of pressure loss, current interruption, wrong wiring alarm, display, record and active upload, which makes it convenient for management personnel to find user anomalies in the company headquarters, and provides an advanced and effective high-tech detection method for anti-stealing electricity.

Second, the design plan
 
1. New technology adopted
   This system GPRS wireless data terminal-KB3000 adopts industrial-grade network professional processing chip, uses watchdog circuit technology in anti-interference and avoids crashes, adopts today's mature GPRS technology in data transmission, and adopts in power analysis Advanced operational optimization technology.
   In the aspect of software programming, advanced programming technology is adopted, and C / S (client / server) mode is used for the modification and maintenance of the database, and B / S (window / server) mode is used for the realization of query, statistics and browsing functions.
 
2. System structure
    This system includes GPRS wireless remote centralized meter reading part and power consumption analysis part
GPRS wireless remote centralized meter reading system
     The system includes GPRS wireless remote centralized meter reading center, KB3000 GPRS DTU, power and other data collection parts. The wireless remote meter reading center is composed of WEB server, database server, VPN special line Internet access, printer and GPRS remote meter reading management software.
  
(2) Power consumption analysis
 
    Using GPRS wireless remote meter reading data, through statistical analysis of the line loss rate assessed by various combinations, the measurement errors of each electricity metering device can be found in time, and the imbalance problems in the electricity network can be discovered early.

3. System plan
 
4. Main functions and features of the system
1 . The remote meter reading system on the data server of the power supply bureau can automatically or manually retrieve the concentrator data through the Shenzhen Jin Broadcom GPRS wireless data terminal KB3000, and the concentrator copies all the electricity meters regularly according to the time set by the user every day Stored in a large-capacity memory, the data stored in this memory is not afraid of power failure, the system can store regular meter reading data (less than 300 meters) within one month, so that after the GPRS network is abnormally repaired, it can still be scheduled daily The transcribed data of all energy meters are uploaded to the database server of the central website.
2 . Users with local or wide-area network can perform some operation functions on the website server remotely if authorized, such as: meter reading, query, statistics, browsing, analysis, printing, etc.
 
3. Since the concentrator can save the regular meter reading data within one month, the central server can also copy the regular meter reading data and total data of any day in the previous month in addition to all the data of the current day.
4. The system can automatically read wireless meters remotely through the GPRS public network, and can automatically judge and analyze the data, and report to the police in time if problems are found.
5. The system has the function of real-time tracking and monitoring of suspicious electric energy meters. Because the GPRS network is always online and charged by traffic, the real-time tracking and monitoring of electric energy meters has the lowest operating cost.