基于I^2C的油罐界位测量系统设计  

Design of a tank oil-water interface measuring system based on I^2C

作　　者：刘尊民[1] 林海波[1] 仪垂杰[1] 

机构地区：[1]青岛理工大学汽车与交通学院,山东青岛266520

出　　处：《西安石油大学学报（自然科学版）》2014年第5期53-57,7,共5页Journal of Xi’an Shiyou University（Natural Science Edition）

基　　金：国家自然科学基金(编号:61271387)

摘　　要：为解决目前原油界位测量仪表存在的成本高、故障率高等诸多问题,开发了一种新型的界位测量系统。该系统具备手动及自动测量功能,自动测量时通过I2C总线采集64路测点信号,信号通过光电隔离电路进入单片机系统进行处理,所采集数据可通过RS485或GPRS远传到上位机;当自动测量系统出现故障时,自动切换到手动模式,使用电流表在罐下转动多路开关寻找导电测点测量。给出了系统关键硬件及软件结构的设计方法和系统的测试结果,通过胜利油田现场对比试验、重复试验等手段,证明了该系统具有可靠、安全、维护方便等特点,具有应用推广价值。In order to solve the problems existing in current oil-water interface measurement,such as high cost,high failure rate,etc.,a new type of oil-water interface measuring system is developed. This system has both manual and automatic measuring functions.When automatically measuring,64-channel digital signals can be collected through I2 C bus,and the signals can be transmitted to the upper-computer by RS485 or GPRS. When the automatic measurement system fails,it can be switched to manual mode. User can use the ammeter to complete the measuring through turning multi-way switch to find conductive points in this mode. The key hardware and software design method are presented,and the test results of the system are also provided. The application in Shengli Oilfield shows that this system is safe,reliable and convenient to operate and maintain. So this system has a high promotion value.

关 键 词：界位测量 I^2C RS485 GPRS 

分 类 号：TE821[石油与天然气工程—油气储运工程] TP277[自动化与计算机技术—检测技术与自动化装置]