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Rapid development of modern science and technology drives the development of data acquisition technology. Data mining technology in the digital display instrument, site acquisition, and other fields has a broad demand. This paper studies the intelligent meter data acquisition method based on OPC communication. It proposes the calculation method of the operation time for key equipment based on the...
This article is based on C# multithread technology, takes Serial Port communication as the link, and uses SQL2012 as the carrier for data storage, in the VS2012 development environment, this paper implemented the data acquisition of the meter under multiple serial ports. First, this paper introduces the hardware design of data collection system. Then it introduces the software design scheme of serial...
In recent years, the intelligent instrument in enterprise energy management is quickly gaining in popularity. The correct instrument information collected is the assurance of accurate analysis for energy efficiency. This paper mainly studies the method of the smart meter data collection in the energy data acquisition system, and proposes the effective measures for improving the success rate of the...
In the present stage of information construction, enterprises have achieved partial information, but there is still overall isolation. In order to grasp the production status of the cement branch factories in real time, optimize the production process and the reasonable allocation of production tasks, objective evaluation of the production efficiency, improve the comprehensive competitiveness of the...
In order to overcome the control difficulties resulted from the characteristics of decomposing furnace, such as non-linear, time-varying and large time delay, a multi-mode intelligent control method is proposed in the paper by the combination of fuzzy control, Bang-Bang control, feed forward control, expert control and variable integral PID control. This control method through a multi-mode intelligent...
In order to analyze the cement enterprise energy consumption, the e-p analysis model of comprehensive energy consumption is established in this paper. The factors which influence the energy consumption are divided into process energy consumption and conversion ratio. Combining with examples, how the two factors do on the energy consumption is analyzed. The research results provide certain theoretical...
Starting from new dry process cement production characteristics, to measure energy consumption in the major part process, analysis of heat and electric consumption balance, through calculation and analysis to proposes the solution method and achieve the purpose of energy saving.
A compact dual-band antenna with modified open U-shaped slot is proposed. The antenna is mainly composed of a patch with modified open U-shaped slot and a T-shaped feed line. The dual-band characteristic is obtained by folding the upper strips of the patch. The proposed antenna is fabricated and tested. The measured results show that the proposed antenna covers 2.38–2.52 GHz and 5.0–6.1 GHz with S11<−10...
A novel dual-band E-shaped monopole antenna is proposed for wireless applications in the 2.4/5.2GHz bands. To obtain the dual-band characteristic, two L-shaped stubs are added to a traditional monopole antenna. The proposed antenna is fed by coplanar waveguide. The antenna is simulated and measured. The measured results show that operating bands of the proposed antenna cover 2.3–2.7GHz and 5.0–5.4GHz...
On the analysis of the characteristic of the data in cement enterprise, it brings forward structure in MES based on data integration platform. In this thesis, the key technologies in data integration are analyzed, and the strategy and method of system implementation in a cement enterprise are introduced. Design practice and method of cement enterprise MES information integration are significantly...
A distributed real-time production supervisory designing conception based on OPC and Web technique is presented. The OPC technique and its application in the DCS of cement enterprise are introduced, the seamless connection between the application and plant, and the Web distribution of production data are realized.
The combustion in circulated fluidized-bed (CFB) boiler is a complex and multi-variables coupling process. It is too difficult to build an exact mathematic model to describe the process. Bed temperature control system is an important subsystem of burning system, maintaining normal bed temperature is the key for stable running of boiler, and it is difficult for the norm PID algorithm to control it...
The cement industry is a typical process industry. Its production management is vital for business management. On the basis of detailed analysis of cement production management characteristics, production management and control system based on manufacture execution system (MES) is put forward. Aiming at actual need of cement enterprise, a suit of production management and control system project that...
UML (Unified Modeling Language) is a kind of object-oriented modeling language. The conception of UML and its main content is briefly introduced. The modeling application of UML in cement MES equipment management system is studied. Based on the system demand analysis, combining modeling tool Visio, the demand model, static model and dynamic model are established.
Computer integrated manufacturing system based on the three structures of enterprise resource planning system, manufacturing execution system and process control system has become the mainstream frame of process industry CIMS theory and product at home and abroad. The conception of CIMS and meaning of process CIMS is briefly introduced. Given the characteristics of production and operation in cement...
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