Industrial Remote Control And Optimization Based On Wireless Sensor Networks

Industrial control technology is a control technology which combines control science, instrumentation science, computer science and other related sciences, though the production monitoring, production control and production management of industrial production processes, to improve product quality, reduce product cost, increase product yields. Modern industrial control systems always achieve the overall demand with distributed control (DCS) and cables on-site, through cable collect signals on-site sensing devices, analysis in the system, to get related information. Then transfer electrical signal to the site devices in order to collect data and control information. But in the actual implementation, because the field devices always far away from the control center, the cost of cables is increased and signal is attenuated, which makes the stability and cost are out of expectations.As the rapid development of information science, electronic science and sensors science become more sophisticated, wireless sensor network combined by a lot sensor nodes connected by wireless self-organizing is received widespread attention, and these sensor nodes have numeracy and communication capabilities. In this paper, according to some problem appear in the process of developing citric acid fermentation in Niran (Thailand) co., ltd, develop industrial remote control system based on wireless sensor network. Wireless sensor data sending nodes placed in the outdoor sends collect the flow, temperature and other signals, and send the data to the wireless sensor node located in control center to accept. Using the improved LEACH algorithm to optimist wireless sensor networks can increase network nodes'life, reduce power costs. Establish an expert system in the control system, expert system collects data from wireless sensor networks, after intelligent calculation and analysis, result in the corresponding control method. This control method produced by on-site control of executing agencies can achieve the system control process requirements. According to control requirements, you must connect the local control system to the Internet to ensure that only system in the country with the client, we can control the system in any place where can connect to the Internet. We also can modify the part of the control process parameters by interviewing local engineering station, to achieve the purpose of system maintenance, reduce the distance cost.Control systems combine wireless data networks and wired data networks, wireless data transmission using IEEE802.11 b network protocol, wired data through I / O site collection, a set of expert system for collecting the data obtained operational analysis. The project in Niran (Thailand) Co., LTD. Thailand citric acid in the course of using factory, the operation is in good condition.