 Wysłany: Śro 0:15, 01 Gru 2010 Temat postu: uggs online History of coal handling electronic be |
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| History of coal handling electronic belt scale based on the failure of the database and its application
Network traffic data to read electronic belt scale,uggs online, belt scale into the historical database. Can run the operation or management of the client on-line monitoring belt transport traffic, while the user has permission to draw the historical data query to the server, and failure analysis. 2.1 Data Acquisition belt scale commonly used communication port RS. 485 standard, which is used in computer network TCP / IP standard is inconsistent. To this end,MBT schuhe Günstig, in terms of hardware converter with RS-485--TCP/IP belt scale computer network communication port and power connection. Thus, installed on the server only connected to the data acquisition program Chang Wang, you can read the electronic belt transmission belt traffic in real time, integrating flow data. 22 Power System Engineering Volume 21, 2005 Figure 2 Network topology control 2.2 Monitoring on-line monitoring module list showing the belt scale real-time data to any of these two curves show real-time traffic flow changes in the belt, shown in Figure 3 . At the same time, online monitoring module for real-time data anomaly to the text color, sound, data query reports 2.3 management history can be brought to check the belt to the server running records, observe the traffic distribution, and focus on the operation of the failure analysis data. 2.4 Failure Analysis application to the belt number, serial number belt, query duration of the overload limit of parameters of the stored procedure call to the belt scale historical data, the abnormal flow of node data, shown in Figure 4. Overloading failure analysis section of the module will eventually happen duration of the overload type, frequency and other information available to management staff in tabular form. On this basis, according to the list of Remembrance abnormal overload condition section of the belt transport flow distribution. 2.5 parameter set parameters module provides management functions belt scale, may at any time of belt transport traffic parameters (alarm value, alarm value) and the belt scale is set into operation, making diagnosis more flexible. A recent list of abnormal data in order to alert the operator attention. = J History Wai 3 Conclusion Shen Qu Dadeng t = J; at p 【. No stupid belt scale a number give it a 'B of 2. . 5-111, woolen rug about by: Dong transfer surface i (  the gate of heaven OO1 a n1D: 44 ∞ Yu volume 2 outfitting ', h Figure 3, left palm belt transport traffic query ■: ・ t, T Yang t ・ 15J blind Which ∞ 27 ~ $ -1 a, 1 = J ISSUE. {Obstacle 2 ? ● - Day \::-l】. aJ-...-I_ a lw ・ ljtiEQ ¨ | King Lun ● Day '● Day | lIl1 ● tx: 2 ● Day xr_' Day ∞ ? ? Day: 51 - (, 40;: -01 re 5 \Figure 4 shows failure analysis and flow (1) used this method of failure analysis is based on the transport belt based on the direct analysis of traffic data. This kind of fault-based analysis of the historical database management the flexibility of combining the thinking of the belt Transport diagnosis, search for abnormal state flux distribution, on the conveyer belt to make an objective evaluation of operating conditions for carrying out maintenance work provided the basis. (2) database for data analysis method is not limited to coal monitoring system failure analysis, this method can be extended to the historical database, data mining, analysis of system stability and so on. (3) in the failure analysis of electronic belt developed on the basis of online monitoring and fault analysis software takes full advantage of the power plant existing equipment to achieve flow of power-line monitoring of coal conveyer belt to solve the coal measures show the limitations of single-point dial to improve the safety of the unit I run the health and economy. Estuary References 【1】 Guyuan Guo. Failure analysis of belt conveyor and processing 【J]. Paper and Paper, 2002 (4). [2】 Tongan Min. coal-fired power measurement computer management system [J]. Electronics and Automation, 1998 (61. 【3] three to five stars, Jianping Xuan, SHI Tie-lin,ghd glätteisen, et al. Distributed monitoring and diagnosis system in the history of database system design [J]. vibration,ugg boots uk, testing and diagnosis, 1998 (2). [4】 Daiming Li, Lin Guozhang. large-scale database applications system optimization [J]. Beijing University of Technology, 1998 (6). [5] DennnyLynneFields. YUAN Qin-Yong, He Xin, such as translation. MicrosoftSQLServer2000 Optimization Guide [M】. Beijing: Tsinghua University Press, 2001. [6】 Hu Jiangyi,moncler outlet, Renhong Ping, Yao Mao law. SQLServer-based optimization applications [J]. Computer Engineering and Applications, 1998dO). Editor: Wen Chang
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