Development Of Data Acquisition And Device Control System Based On LabVIEW

Since the1990s, the application of condition monitoring in power plant technology and thedevelopment of new power plant condition monitoring technology has become one of the mostimportant tasks. Power plant safe operation of electrical equipment and computer technology,sensor technology, signal processing technology and artificial intelligence technology enables theelectrical equipment condition monitoring implementation of effective as possible, these tworeasons contributed to this need. This article through the power plant site investigation, design aremote monitoring system.First, Handan plant equipment maintenance of existing equipment and knowledge, Handanplant contains more than one unit, because each unit’s wide geographical distribution, timedartificial maintenance of equipment, both good labor-and time-consuming for large power plants,the establishment of a sets timely monitoring system is very necessary. However, not all devicesrequire testing, test equipment is more critical equipment unit, a failure of the entire productioncaused serious consequences, so the design of the detection system, you must have someknowledge of the equipment, but also on fire the principle of generating a preliminaryunderstanding, understanding of the key power generation equipment. Finally, workers at thesite for equipment maintenance experience, you sure you want to monitor the device. Determinethe testing equipment, according to the general knowledge of machinery, you sure you want tomonitor the signal and signal type.Secondly, configuring Hardware with developing acquisition task, based on the abovemeasurement points to be monitored analysis and signal acquisition type of analysis to determinethe type of sensor, the sensor configuration for the corresponding measuring point, whiledeveloping hardware, wiring diagrams, according to the sensor type selection NI acquisition card,according to the rational allocation of the distance measuring point acquisition task.Thermal power generating units and then design programs Handan, Handan Iron and SteelGroup plant located in Handan, Hebei Energy Center under multiple power plants, in differentperiod of several sets of different control systems, and set aside the communication interface. Onthis basis, establish a complete set, with the world’s advanced level of process informationmanagement system. Purpose is achieved by the various departments of the whole plant unifiedintegrated management control system, so that each department can be unified for the entirefactory production scheduling management, coordinating production, and remove the accident,to achieve maximum productivity. Through the application of advanced, mature and reliablehardware, software and network technology, accurately and quickly record production-relateddata and provides LAN-based monitoring, configuration, query, analysis and other functions,query and analysis of the relevant departments for production-related information. Power plant equipment safe and smooth operation is consolidated. Ensure that the main plant equipmentonline monitoring data collection does not fall, and centralized management and trend analysis.Ultimately, the intelligent fault diagnosis and analysis of the main equipments are carried out.Final，design of the online monitoring system program, because a wider geographicaldistribution between units, a huge amount of data to be collected, if you put all the focus ondata collection, centralized storage, data transfer cable and the high cost of photoelectric, and alarge burden on the server, in order to solve this problem, the use of multi-server multi-clientservice model. In the vicinity of each unit to establish a server, the server to the local datathrough the pre-treatment, storage and dissemination of useful data, the server switches andLAN client traffic. Using Labview prepared server functions: acquisition task analysis, datacollection, data storage, warning judgment, surveillance databases, and remote communication.Labview prepared using VC and customer service side, including system configuration, real-timesignal data show that the signal monitoring and analysis, fault diagnosis, recall the accident,equipment operation and trend statistics and other functions...