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前端是计算机测控系统的基本部分,它们作为与生产过程直接联系的分处理机被大量分布在现场上,负责对现场状态进行监控、测试,将测得数据进行预处理后,以有线或无线方式传送给主机处理,同时也接收主机命令,完成相应的动作. 我们设计制造了一种油田自动化测控系统.该系统由一台主机、一台通讯控制器和35台前端构成.前端被分布在约50平方公里的范围内,分别被安放在27个油井计量点、5个原油中转站、一个油库、一个水源和一个注水站上.前端通过460MHz调频无线电台与主机互传信息.该系统基本上实现了对整个油田的自动化集中计量与控制.
The front end is the basic part of the computer monitoring and control system. As a sub-processor which is directly connected with the production process, it is widely distributed on the scene and is responsible for monitoring and testing the status of the site. After preprocessing the measured data, Sent to the host processing, but also receive the host command to complete the appropriate action.We have designed and manufactured an oilfield automation measurement and control system.The system consists of a host, a communications controller and 35 front-end composition.Front end is distributed in about 50 square kilometers, respectively, were placed in 27 wells metering points, 5 crude oil transit stations, a depot, a water source and a water injection station.Front 460MHz FM radio stations and the host each other to transmit information.The system is basically Achieved the entire field of automated centralized measurement and control.