Fig 9 - uploaded by Mounir Aouadj
Content may be subject to copyright.
RTU data acquisition blocks ADC: Analog to digital converter; EPROM: Internal memory containing resident program that performs the functions of the RTU; RAM: Cache memory containing intermediate data; MODEM: Integrated in the communication module
Source publication
This study aims are data acquisition, control and online modeling of an oil collection pipeline network using a SCADA «Supervisory Control and Data Acquisition» system, allowing the optimization of this network in real time by creating more exact models of onsite facilities. Indeed, fast development of computing systems makes obsolete usage of old...
Citations
... The researchers developed an algorithm to control the flow process. Toblas in 2011 presented a paper titled "Critical IT-Infrastructure (like Pipeline SCADA systems) requires cyber-attack protection" in the 6 th pipeline technology conference in Germany [2]. The emphasis of the researcher is to deploy IT technology to combat various forms of attack either at the design phase or maintenance phase using various forms of control systems. ...
Pipeline leakage detection, if not addressed swiftly/promptly, could result to loss of lives and properties. Researches have shown that the best means of curbing or drastically minimizing these losses is through real time monitoring using DCS and CAO-SCADA Technology as the management tool. This tool was adopted in this work and then applied to a particular oil and gas terminal in Nigeria. Research questions were generated and data obtained as well as the research instrument used were validated. A total of one hundred and thirty-five respondents were used for the study. From the formulated testing based on z-test, three hypotheses were investigated termed as HO1, HO2 and HO3. HO1 test hypothesis of pipeline failure as a result of leakages along it and if the leakage detection is because there is no DSC, CAO-SCADA management tool along the pipeline. The result obtained showed that z-calculated is less than the critical value of 1.96 with a significant level of 0.05. From the results obtained, the hypothesis HO1 is accepted, thus failure of this pipeline is because the DSO, CAO-SCADA is not present in the system. HO2 testing determined if there exists any difference significantly between the DSC and CAO-SCADA system. From the result, the z-calculated which is 0.0065 is less than the critical value which is 1. This implies that the null hypothesis (HO2) is accepted. Meaning that there is no significant difference between CAO-SCADA and the DCO for the effective management and monitoring and safety operations in the pipeline. The last hypothesis is to test if there exists significant difference between DCS and CAO-SCADA system for effective industrial system control of leakages in pipeline. Out of the 135(100%) respondents, 106(78.52%) agreed with the recommendations made by the researchers while 12.59% partially agreed. 4(5.18%) have a clear understanding and 5(0.0370%) are indifferent about the recommendations made.
... From this algorithm and the structure of the automated control system follows one of the main conditions for routing and operation of the control system, which is the need to program each control device equipment separately (troughs, conveyors, valves, valves and silos) and all control sequences, engineers program and describe all possible routes using and taking into account all the mechanisms that may be involved during transportation [22]. With the operator's command, the construction of the transportation route is performed by selecting the first free route from the pre-programmed, and performing all accompanying operations. ...
The article analyzes the system of automated process control at the elevator to determine promising areas for improving the quality of grain. The structural scheme of control and the algorithm of laying the transport route of grain according to the specified coordinates on the basis of SCADA-system are investigated. One of the directions of increase and improvement of technological process on the elevator is defined, which consists in improvement of control algorithms in the direction of optimization of technological processes of the elevator on many criteria (minimum of energy consumption, minimum of grain fighting, minimum of transport time), product performance. Key words: transport-technological line, SCADA system, quality of grain products,optimization criteria, elevator.
... In the stage of data acquisition, an enterprise-level central database is expected by the combination of meteorological data with the existing database from SCADA System, Plant Information System, Pipeline Production System and Pipeline Integrity Management System, to supply more comprehensive information for decision support [1]. ...
Under the requirement of CNPC in the construction of intelligent oil and gas pipeline, PetroChina Oil & Gas Pipeline Control Center has focused its work on the intelligent improvement of pipeline centralized dispatch and control system. The concept of Pipeline Intelligent Dispatch and Control is put forward, of which the framework, service objects, platforms and targets are established as well. Besides, the development strategy with 2 technical directions are proposed for the intelligent improvement of pipeline centralized dispatch and control, on the basis of learning from practices of power grid intelligent dispatch and petrochemical intelligent factory. In the first direction of informatization construction, there are 5 routes including central database, office automation, state/trend demo, professional simulation and industrial automation. In the second direction of intelligence promotion, there are 3 routes including optimization problem, prediction problem and recognition/judgment problem. In addition, the intelligent development is not a pronoun of staff reduction, but a personnel structural optimization. The cultivation and reserve of high-skilled talents should be emphasized as well as persistent technical innovations.
