GPRS-based Data Concentrator Design

At present the remote electric power meter reading system a power departmentmanagement, analysis and processing all kinds of quantity of electricity data is a kind ofimportant choice measures. With the improvement of people’s living standard and nationaleconomy, the rapid development of real estate industry, residential the quality and grade of themore and more high, residents of residential environment, property management level anddigital informatization level requirement also is increasing day by day. On the water supply,the power supply, gas supply departments and users, the traditional artificial meter readingway already far cannot satisfy the needs of society. This kind of way behind, use a lot ofmanpower and material resources to residents and supply authorities inconvenient, so manydomestic town gradually appeared to the computer for the foundation to be automatic meterreading system to replace the traditional artificial meter reading.Automatic meter reading system set electronic, computer, communication, automaticcontrol and measuring technology in a body, has the meter reading speed, high precision, copyis convenient wait for a outstanding qualities. Based on the comprehensive consideration, thispaper puts forward a wireless meter reading system is based on GPRS wireless intelligentmeter reading system, this paper is based on GPRS wireless intelligent meter reading systemof concentration in the device.Intelligent meter reading system electric meter, concentration, and by managementbackground three components, including concentrators, workflow to: accept the Lord controlinstruction, and then will electric meter data save and upload to host background managementsystem. Subject research goal: the use of embedded technology, in view of long-distancemeter reading system control requirements, the in-depth study of the concentration of thesoftware and hardware design thinking, and to the development of practical system provides acomprehensive theory and technical support.Review of the technical development and the latest progress of the GPRS, and according to the concentration of function requirement, combined with the domestic and foreignrelevant technology development present situation, proposed based on GPRS wirelesstechnology is the focus of the design and realization method. In the hardware including CPU,storage unit, power lines carrier communication, GPRS communication, serial communicationand power management unit six functional parts. Using popular embedded technology, usingAMR7microcontroller, carrying peripheral expansion parts, construction hardware system,and the system related module commissioning. The system is to focus on the basicrequirements of the hardware platform. In software, through a software program compiling,and realize the two basic function module: focus on sensor and meter communication andcontrol module, the background and concentrators, communication and control module of thedesign of the software system. Full consideration of the actual use of various exceptionhandling method, ensure the accurate on reliably. Through this topic research, satisfy basicallyconcentrators, the function requirement and index performance requirements, and in thesystem selection, software to realize such links, the systematic research for the actual devicedesign provides important reference.