PLC Temperature Monitoring System Research and Design Based on Web

2014 ◽  
Vol 707 ◽  
pp. 313-316
Author(s):  
Xin Zhang

In the modern industrial areas, monitoring technology combined with Internet is very popular by enterprises and research workers. In this paper, the remote monitoring system based on Internet technology has been studied, PLC control and operation of the terminal as the site is used, collected field data through the PC and the web server, analog data to achieve a live remote users in real-time viewing and real-time control of field devices, through collection of data transmitted over the Internet. Specific monitoring system architecture is studied in detail in this article, and specific design.

2014 ◽  
Vol 494-495 ◽  
pp. 917-920
Author(s):  
Fang Guo ◽  
Jia Yong Duan ◽  
Yan Zhong Zhai

In this paper, one ground freezing monitoring system based on Zigbee is designed. System is divided into four parts: sensor cable based on 1-wire technology, monitoring terminal with a drive circuit based on Zigbee, Zigbee coordinator and monitoring host with the function of network. This paper mainly introduces the network communication system. The system is suitable for the construction site of the engineering test; anti-interference and robustness of system are strong. It implements the project managers and experts operation of real-time control without time and space limits for freezing monitoring system. It provides technical support for the application of freezing engineering.


2002 ◽  
Vol 45 (7) ◽  
pp. 95-104 ◽  
Author(s):  
A. Campisano ◽  
C. Modica

Moveable gates for the real-time control (RTC) of sewer systems storage capacities are usually operated by controllers which, on the basis of local water level or flow velocity measurements, calculate the regulation errors of the monitored variables, determining the necessary regulator movements to lead the flow conditions to the desired set point. In this paper the results of an investigation on the influence of proportional-integral-derivative (PID) controllers and programmable logic controllers (PLC) for the RTC of moveable sluice gates positioned into sewer systems are presented. The analysis of response time, damping and regulation errors provided information on the PID parameter calibration values and on the PLC control function performances. A comparison between the two kind of controllers has also been carried out.


2012 ◽  
Vol 263-266 ◽  
pp. 387-391 ◽  
Author(s):  
Qun He ◽  
Guo Qian Jiang ◽  
Zi Kou Yu ◽  
Ping Xie

Rapid development of wind power generation and increasing growth of installed capacity of wind turbines make it necessary to study the power quality in wind farms. To monitoring the power quality in wind farms automatically and in real time, this paper presents a remote monitoring system for power quality based on LabVIEW software and Internet technology. The remote panel technology in LabVIEW and the Browser/Client (B/S) mode are adopted. This system mainly consists of monitoring hardware devices, the server, LabVIEW application software and remote clients. In the system, the remote clients in monitoring center workstations can monitor in real time power quality parameters of each wind turbine in wind farms through the VI control panel in the Internet browser. Thus it enables to improve automation level of wind farms and reduce operation and maintenance cost. The feasibility and coordination of the developed system are validated by experimental simulating results in the laboratory environment.


2014 ◽  
Vol 686 ◽  
pp. 201-204
Author(s):  
Jian Tao Cui

This paper mainly studies the key technologies of network real-time monitoring system based on Client/Server, and implementation of a real-time monitoring system based on CS/ mode. Using the network communication technology, Winsock technology, TCP/IP protocol, image compression and transmission technology, the process of communication technology and object oriented software technology to realize the main frame module, the system include network monitoring data initialization module, data transmission module, image coding and decoding module, its advantage is to make full use of the existing network resources, the highest price, with real-time information control and real-time control as the center, timely delivery and management of information.


2014 ◽  
Vol 989-994 ◽  
pp. 2758-2760 ◽  
Author(s):  
Shan Shan Tang ◽  
Chao Kun Wei

Hydraulic support is widely used under the mine while the pressure is the most important factors of its safety.In view of the defects about present pressure monitor of mining hydraulic support ,designing a mining hydraulic support pressure monitoring system based on LabVIEW.This article mainly introducing the overall structure of the system, hydraulic system principle, the LabVIEW program, data communication and interface design.Using LabVIEW collection and storage support’s real-time pressure information. On the basis of the single chip microcomputer and the LabVIEW for data processing and display, improving the real-time control of hydraulic support.


2013 ◽  
Vol 706-708 ◽  
pp. 924-927
Author(s):  
Hai Tao Liu ◽  
Tao Wu ◽  
Nan Chen

This project put forward a kind of new low-cost real-time monitoring system of carbon dioxide. First, this equipment guides the gas into the device of chemical reaction by using step motor and measures the change of the gas’s volume which is guided into the device of chemical reaction after the reaction between the CO2 and NaOH by using the data-acquisition unit. Then, it processes data with Freescale MC9S12XS128 MCU and calculates the concentration of the CO2, in the meantime sends the data to the PC system by APC220V 3.0 wireless module, then using PC system makes the real time control over the concentration of the CO2 come true. Finally, detecting concentration accurately and steadily is achieved.


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