Application Introduction of Electric Power Remote Meter Reading System
With the development of wireless communication digital network, wireless remote automatic meter reading has become an inevitable trend of development, and its application field is extremely broad. At present, based on the wide distribution of instruments and meters, most of the remote meter readings still use the wired transmission method, and the line maintenance is very large. Because the telephone line is public, conflicts often occur during communication, which not only affects the transmission of data, but also interferes with the normal work of the ESC department, and this method is normal for the program-controlled switchboard in the communication department.
Stable operation also has a certain impact. In order to ensure the transmission quality, if the dedicated line is used, the investment cost is too high; the communication method of China Mobile's GPRS wireless digital network has well solved the bottleneck problem of remote meter reading. Users can surf the Internet without the pain of disconnection. Using the GPRS wireless networking solution, data can be sent and received in groups, and users can always be online and billed by traffic, which quickly reduces service costs.
System Features:
1. Short construction period and low cost:
The GPRS wireless network can provide a simple and efficient means of communication transmission for the power system. China Mobile GPRS system can provide wide area wireless IP connection. Constructing the electric power remote meter reading system on the GPRS business platform of the mobile communication company to realize the wireless data transmission of the electric 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 maintain.
2. Strong real-time performance:
Due to the real-time online feature of GPRS, the system has no time delay, and can receive and process data from all data collection points synchronously without patrolling. It can well meet the real-time requirements of the system for data acquisition and transmission.
3. Remote control of electric meter equipment:
Through GPRS two-way communication, it can also realize remote control of electric meter equipment, parameter adjustment, switch and other control functions.
4. A wide range of collections:
GPRS covers a wide range, within the coverage of the wireless GSM/GPRS network, the control and management of the centralized copying can be completed. Moreover, there are no restrictions on capacity expansion and no restrictions on access locations, which can meet the access needs of mountainous areas, townships and cross-regions.
5. The transmission capacity of the system is large:
The power distribution data center should maintain a real-time connection with each meter data collection point. Due to the large number of meter data collection points, the system requirements can meet the needs of sudden data transmission, and GPRS technology can well meet the needs of sudden data transmission.
6. High data transfer rate:
The data transmission volume of each meter data collection point is within 10Kbps. The transmission rate of GPRS network can theoretically reach 171.2kbit/s. At present, the actual data transmission rate of GPRS is about 40Kbps, which can fully meet the data transmission rate (≥10Kbps) requirements of this system.
7. Low communication cost: The monthly billing method is adopted, and the operating cost is low.
8. The system is easy to expand and maintain.
