Research Of Mine Gas Station Monitoring And Management System For Personal Use

The automation degree of the gas stations monitoring used by coalmine usually is low.And usually it is analog control screen which is composed of analog devices(the switches, indicator lights and instruments etc.).This mode mainly depends on manual operation, there are so many issues,such as cumbersome monitor screen view, a small amount of information, the heavy workload of manual recording, big errors, large investment of system upgrading (have to replace many monitoring hardware device), operation mode backward and financial system distemperedness.In response to these shortcomings, this paper presents a new Ideas and programs,the control system is composed of the upper PC monitoring software which is programed by VB and lower PLC ,at the same time ,it also use of IC card management mode and HMI which is used for field operations. The control mode of the system combine upper and lower one and it uses many key technology, such as PLC technology, database technology, PC software design technology and IC card application technology,and so on. The core of the upper is monitoring PC,and together with series IC card readers; using the Omron Series PLC as the core of the lower witch coupled with HMI(Human-Computer Interface) to control terminal implementing agencies (pumps, valves, flow meters, etc.) ,everyone gives full play, and then they constitute a integrated monitoring system by communicating ,to carry out the aim of automated daily operations and standardized the management for monitoring stations.This paper analyzes the reasons and the effects which generates the water hammer and overshoot phenomenon that usually happen in control system of gas station at the same time. The control system achieves the opening and closing by multistage mode to control the oil value accurately , protect against water hammer and take into account the problem of efficiency enhancing.Taking into account the impact of the overshoot problem with the hair oil accuracy of system, the system design an way to resolve it which is overshoot automatically adjust based on the flux, and on this basis, it gives the computational model and specific program designs. The system running results show that it achieves the purpose to improve the accuracy of hair oil and to achieve intelligent error compensation.