Study of the Bit Key Technology in the Airborne Measurement and Control System

2011 ◽  
Vol 55-57 ◽  
pp. 1172-1176
Author(s):  
Li Ming Fan ◽  
Peng Wu ◽  
Xiao Lin Zhang
Keyword(s):  
Control System ◽  
New Technology ◽  
Industrial Control ◽  
Measurement And Control System ◽  
Key Technology ◽  
Airborne Measurement ◽  
Control Computer ◽  
Industrial Control Computer ◽  
And Control ◽  
Measurement And Control

BIT is a new technology about the system test, fault diagnosing and separating. It is more important in the design for the reliability and main tainability of system. The key technique, such as the fault tree and equation, the test location, the test signal picking and generating, the fault distinguish rule, the design of preventing error alarm and BIT software. The result showed that the key technology is useful, and the reliability, maintainability and ability of management to fault can be increased by means of BIT. The debugging of system becomes convenient. The method can be used in the system of intelligent-in-strument and industrial control computer.

Experimental Research on Pulsating Two-Phase Flow Pressure Drop Characteristics in Horizontal Rectangular Channel

2014 ◽  
Author(s):  
Chong Zou ◽  
Puzhen Gao ◽  
Wei Pan ◽  
Zheng Yang ◽  
Xianbing Chen
Keyword(s):  
Control System ◽  
Rectangular Channel ◽  
Hysteresis Effect ◽  
Regulation System ◽  
Single Chip ◽  
Industrial Control ◽  
Correctional Programs ◽  
Control Computer ◽  
Industrial Control Computer ◽  
And Control

We preliminarily designed a power tracking and control system using single-chip computers and industrial control computer in the electric heating simulated power loop. The system is an innovational design based on the proven simulated nuclear power loop, with increased techniques of step-less power regulation system and modeling nuclear feedback effect correctional programs. We promoted both hardware and software designs of this power tracking and control system in this paper. It used single-chip computers as the core control chips and an industrial control computer as the additional correctional program and record carrier. The process and implementation of the control software are presented, which is designed as a fuzzy theoretical nonlinear system. In order to ensure the subsequent updates, the access interface of the system is open for following correctional programs, including the correctional program of void fraction effect, temperature effect, hysteresis effect and heat power distribution effect. Taken hysteresis effect correctional program as an example, we use an offset tic-tac clock replacing the inherent tic-tac clock in different devices of the system in order to reduce the hysteresis effect of measuring and corresponding errors. We also put out a preliminary analysis of the accurate synchronization for the system at the end of the paper.

The Design of Measurement and Control System for Condition of Stored Grain

2012 ◽  
Vol 529 ◽  
pp. 281-284
Author(s):  
Zhong Xiao Chen ◽  
Jun Sheng Jiang
Keyword(s):  
Control System ◽  
Remote Measurement ◽  
System Control ◽  
Stored Grain ◽  
Measurement And Control System ◽  
Control Computer ◽  
Function Modules ◽  
Upper Computer ◽  
And Control ◽  
Measurement And Control

In this paper, ARM7 Microcomputer is designed to realize control of the grain storage environment situation. This control system adopts RS-485 bus to transit data, connecting the temperature module and humidity module with the upper computer. And a detailed description of the design of system function modules and the B / S four layer database application program realization. In this way, the system control computer on the field of grain information real-time monitoring, and through the Web server interface and Internet on the client establish a connection, completed the site condition information of remote measurement and control.

Application of Siemens S7-300 PLC in the Thermal Power Plant Flue Gas Desulfurization Control System

2014 ◽  
Vol 511-512 ◽  
pp. 1123-1127
Author(s):  
Mei Long Ju ◽  
Xiu Qin Zhai ◽  
Qing Zhang
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Automatic Control System ◽  
Flue Gas ◽  
Thermal Power ◽  
Flue Gas Desulfurization ◽  
Industrial Control ◽  
Economic Operation ◽  
Control Computer ◽  
Industrial Control Computer

According to the characteristics of Wet Flue Gas Desulphurization (FGD), this paper brings forward the automatic control requirements and the control methods. The automatic control system is composed of a Programmable Logic Controller (PLC) and an industrial control computer (PC). The automatic control system can monitor the operating parameters of FGD system automatically and conduct automatic control and adjustment to FGD system. The PLC is responsible for the data collection and automatic control, while the PC is responsible for the surveillance of FGD system operation and the data processing through mutual communications between PC and PLC, which realizes the communication between human and machine and ensures the safe, stable and economic operation of the FGD system.

Sign in / Sign up

Export Citation Format

Share Document