Design And Implementation Of Network Management System In LNG Filling Machine

LNG(liquefied natural gas) is recognized as one of cleanest energy on the planet, and its development and use, optimizing urban energy structure, promote saving energy and protect the enviroment, improve the city environment has important significance. LNG gasification station, with its short construction period and be able to quickly meet market demand, the advantages of gas has gradually in many economically developed southeast coast of China, energy shortages small city built a permanent facility or pipeline gas supply before the arrival of the transition gas facilities.Nowaday in the industry of LNG, There are still many gas company in the use of traditional way of manual work, The production efficiency is very low, nor convenient stations within the company production management, and in the company’s financial statistics has become cumbersome and complicated and increase the chance occurrence of errors.LNG filling machine network system is developed for this problem, the main use of the C / S structure, system uses the network, database, ic card, rs485 technology, using the system, will increase the productivity of the gas company, the company subordinate stations to facilitate the management and monitoring. LNG stations will be installation site monitoring software and IC card management software, LNG site monitoring software real-time acquisition dispenser display unit price, volume, the amount of such data.Convenient for site data statistics. The use of IC card management software can be used in lieu of cash consumer credit card spending, either for company or personal benefit both drivers. And on this basis, all the company can put all the recharge point filling station, networking subordinates, so you can make aerated data, recharge data interact, but also convenient for the IC card, the stations’ integrated management.This article is designed LNG filling machine network system is a typical network information management system, including site monitoring software, client communications software, server communication software, IC card management software, central query software. The main contents are:1. System Design: This paper describes the design of software system design ideology, basic principles. The system architecture design, network topology design, communication mode selection, hardware selection. Choice of development tools, database selection, database structure design, the system software modules, etc.2. IC card management software design: achieving IC card basic management functions: login, registration card, recharge, clear card, change card, report the loss, make cards, cancellation, query, statistics and other basic functional design.3. Site Monitoring System Design: Implementation login, operator management, monitoring interface, team total, information query, statistical reports, database maintenance, and functional design.