Design And Implementation Of Remote Prepaid Meter Reading Terminal

With state of the smart grid development strategy, its most important infrastructure of the intelligent electric meter has become an important project in the development of smart grid, state grid corporation also according to their own development needs, formulate and publish a series of technical conditions and specifications. the meter reading terminal in addition to have measuring function(by RS485 communication or pulse) and remote subscription, power monitoring and control of user equipment, remote maintenance upgrade, etc, for line loss analysis and control the size of the foundation, formed the remote monitoring for electricity customers, real-time meter reading and cost control management for the integration of marketing management new pattern. And described in this article is the one with the function of wireless intelligent meter reading system.In this paper, the remote automatic meter reading system and its development at home and abroad research, this project also used in related technology makes a deep study and research, complete remote prepaid meter reading terminal specific hardware design and software implementation, including all parts of the design of hardware circuit and software implementation, designed with GPRS communication interface prepaid meter reading terminal, prepayment control terminal is divided into the LED display tube, the remote interface card, GPRS communication interface, etc., the terminal ESAM card as measurement unit is mainly responsible for measurement and various measurement data storage, statistics, analysis, to analyze the scene of the power consumption record; And LED display tube is mainly displays the current electricity situation, tripping, countdown lamp information card interface used to provide interface to the user to check IC card, GPRS communication interface is used to send prompt message to the user, to complete real-time monitoring on the meter.