Data Analysis Of Hardware Implementation And Acquisition Success Rate Of Meter Reading System Based On RS-485

With the rapid development of social economy,residents' increasing demand for electric energy has raised higher requirement for the accuracy of electric energy acquisition,while the traditional meter reading method has gradually become obsolete because it is time-consuming and difficult to manage.Therefore,for the national Power Grid Corp,the search for a new.suitable intelligent acquisition device has become the focus of the present.Shandong electric power company adopts a variety of acquisition methods,three of them are most commonly used,namely power line carrier communication,micro power wireless communication and 485 wire communication.Starting from the principle analysis of the three acquisition methods,this thesis analyses the structure and influence factors of the power line carrier communication method and the micro power wireless transmission method,with the main focus on the hardware circuit design based on 485 wire communication.This paper applies the data exported from company marketing system to the three methods,compares the reliability and precision of the results considering the geographic distribution and weather factors,and finally selects an optimum intelligent meter communication method.At the end of the paper,the author summarizes the use of power acquisition and communication methods,and the prospect of the future construction of intelligent power grids and the distribution network increment.