scholarly journals On-line PQ decoupled emergency control strategy in integrated security monitoring and control system.

1989 ◽  
Vol 109 (10) ◽  
pp. 467-474
Author(s):  
Hiroyuki Kita ◽  
Eiichi Tanaka ◽  
Ken-ichi Nishiya ◽  
Jun Hasegawa
2014 ◽  
Vol 909 ◽  
pp. 247-251
Author(s):  
Jun Ying Jiang ◽  
Zen Qiang Wang ◽  
Hong Wei Ma ◽  
Xu Hui Zhang ◽  
Hai Yan Wu ◽  
...  

For the requirements and problems in remote monitoring and control system of electrical haulage shearer, this paper research the key technologies of shearers remote monitoring and control system, such as position and attitude testing, control strategy decision, communication real-time and reliability of network. Position and attitude testing method based SINS (Strap down Inertial Navigation System) was designed to measure position, attitude angle, speed and drum height of shearer together. The shearer control strategy based on work mode was proposed to control shearer working in optimal status. Finally, the network control model of shearer was established in order to analyze the time delay that effects on shearer control system.


2014 ◽  
Vol 889-890 ◽  
pp. 691-694
Author(s):  
Guo Dong Zhu ◽  
Xuan Sun ◽  
Chang Sheng Ai

For the question of surface density controlled by manual measurement in production process and low quality and inefficiency, we designed the on-line monitoring and control system based on capacitive sensor. The principle is capacitive sensor can convert the surface density variation to the capacitance variation, after operational amplifier, rectifier circuit and filter circuit we can get the voltage signal related to surface density of lithium battery pole piece. The voltage signal through the A/D input module into the PLC for data processing, according to the results we can adjust the coat blade degree real-time. This will achieve the purpose of surface density uniformity. Using this system to replace traditional methods, the lithium battery pole piece surface density can be measured in intelligent, controlled in real-time and non-contact mode with high precision. And this system can improve the quality of lithium battery and the production efficiency, also with great reliability and feasibility.


2013 ◽  
Vol 278-280 ◽  
pp. 719-722
Author(s):  
Yu She ◽  
Jun Yang ◽  
Gang Ya

A parameter monitoring and control system is designed in this paper. Hardware is composed of the on-site data acquisition model and remotely display and operating model, which communicated through wireless technology. It monitors the aquaculture parameters (including temperature, PH and dissolved oxygen (DO) concentration) on-line, and water pump or air blower are controlled depended on the value of the parameters. Software is designed respectively for each model, temperature compensation is used in the control system. Experiments show that monitoring and control system for aquaculture had excellent effect, it could reduce investment and human capital in aquaculture production.


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