Study on Profibus-Based Control System of the Experimental Device for Cutter Head in Shield Tunneling Machine

2011 ◽  
Vol 317-319 ◽  
pp. 604-607
Author(s):  
Xiu Xiang Huang ◽  
Qing Tan ◽  
Yi Min Xia ◽  
Wen Hua Liu
Keyword(s):  
Control System ◽  
High Speed ◽  
Experimental Device ◽  
Shield Tunneling ◽  
Long Distance ◽  
Sensor Signals ◽  
Tunneling Machine ◽  
Cutter Head ◽  
And Control ◽  
Shield Machine

The structure and characteristics of test signals of the experimental device for cutter head in shield machine are analyzed. Based upon this analysis, Profibus-based control system is designed. With the use of a distributed I / O station on-site analog signal, the problems of anti-interference for long-distance transmission of signals are resolved, and high-speed transmission for sensor signals and control signals are realized.

Development of Data Acquisition and Control System with High Speed and Long Distance

2014 ◽  
Vol 568-570 ◽  
pp. 203-207
Author(s):  
Lan Hao Zhao ◽  
Xiao Feng He ◽  
Long Jun Luo ◽  
Xue Wen Yan
Keyword(s):  
Control System ◽  
Data Acquisition ◽  
Software Design ◽  
High Speed ◽  
Test Bench ◽  
Safety Valve ◽  
Long Distance ◽  
Automation Control ◽  
And Control ◽  
Large Flow

A data acquisition and control system for a safety valve test bench with high pressure and large flow rate, was developed based on the host-slave architecture, which takes an Industrial Personal Computer (IPC) as host computer and a Programmable Automatic Controller (PAC) as salve computer. The hardware architecture and software design of this system were introduced in detail. This system was verified by the experiment, and the results indicate that it can fulfill the requirement of data acquisition and control with high speed and long distance. This study can provide reference for many automation control fields.

Development of Long Distance Data Transmission and Control Circuit in Borehole

2013 ◽  
Vol 321-324 ◽  
pp. 2492-2495
Author(s):  
Heng Le ◽  
Ming Deng ◽  
Qi Sheng Zhang ◽  
Guan Min Li ◽  
Shan Qiao
Keyword(s):  
Control System ◽  
Data Transmission ◽  
High Speed ◽  
Digital Converter ◽  
Long Distance ◽  
Analog To Digital ◽  
C Language ◽  
Distance Data ◽  
Communication Distance ◽  
And Control

This paper introduces a data transmission circuit used to transmit signals over thousands of meters in borehole; meanwhile, a control system that is equipped with the circuit is also presented here. This set of equipment has many advantages over previous systems-smaller size, less cost, longer communication distance and friendlier user interface. The design of hardware in the system consists of LVDS transceiver circuit, USB port circuit based on high speed MCU C8051F321, automatic power-on circuit based on relay TQ201 and acquisition circuit based on 24-bit analog-to-digital converter LTC2492. The software is based on both C language and VC++6.0. Finally, it accomplishes a kind of data transmission circuit and control system in borehole which delivers the data from thousands of meters away.

A data acquisition and control system for high-speed gamma-ray tomography

2008 ◽  
Vol 19 (9) ◽  
pp. 094012 ◽  
Author(s):  
B T Hjertaker ◽  
R Maad ◽  
E Schuster ◽  
O A Almås ◽  
G A Johansen
Keyword(s):  
Control System ◽  
Data Acquisition ◽  
High Speed ◽  
Gamma Ray ◽  
And Control

Distributed storage and control system of Subaru Telescope on the high-speed wide-area connection

2002 ◽  
Author(s):  
Ryusuke Ogasawara ◽  
George Kosugi ◽  
Tadafumi Takata ◽  
Masafumi Yagi ◽  
Yoshihiro Chikada ◽  
...  
Keyword(s):  
Control System ◽  
High Speed ◽  
Distributed Storage ◽  
Wide Area ◽  
And Control

Research of Plastic Material Dynamic High-Speed Tensile Machine’s Measurement and Control System Based on FPGA

2011 ◽  
Vol 335-336 ◽  
pp. 372-375 ◽  
Author(s):  
Xin Hu Xu ◽  
Gui Qin Li ◽  
Qing Guo ◽  
Feng Lin ◽  
Xin Cai
Keyword(s):  
Control System ◽  
Embedded System ◽  
High Speed ◽  
Plastic Material ◽  
Strain Rate Range ◽  
Servo Drive ◽  
Measurement And Control System ◽  
Control Response ◽  
And Control ◽  
Measurement And Control

This paper will give a solution of measurement and control system based on FPGA embedded system for the Plastic Material Dynamic High-speed Tensile Machine (PMDHTM) with 1-100s-1strain rate range. Using sub-modules design of Nios II soft-wore and SOPC to build measurement and control system. The state machine algorithm and servo drive device are applied to accomplish precise state control of the linear shaft motor. Collecting the stress data online and non-contacting strain measurement is adopted. The test result can well meet the linear motor control response demand below the 5Hz frequency. Compared with other control based on SCM, DSP and so on, it supplies an innovation way for the PMDHTM control.

Integrated guidance and control of interceptors with impact angle constraint against a high-speed maneuvering target

2019 ◽  
Vol 233 (14) ◽  
pp. 5192-5204
Author(s):  
Guanjie Hu ◽  
Jianguo Guo ◽  
Jun Zhou
Keyword(s):  
Control System ◽  
High Speed ◽  
Control Method ◽  
Impact Angle ◽  
Adaptive Sliding Mode Control ◽  
Guidance And Control ◽  
Maneuvering Target ◽  
Integrated Guidance And Control ◽  
And Control ◽  
Impact Angle Constraint

An integrated guidance and control method is investigated for interceptors with impact angle constraint against a high-speed maneuvering target. Firstly, a new control-oriented model with impact angle constraint of the integrated guidance and control system is built in the pitch plane by combining the engagement kinematics and missile dynamics model between the interceptor and target. Secondly, the flight path angle of the target is estimated by extended Kalman filter in order to transform the terminal impact angle constraint into the terminal line-of-sight angle constraint. Thirdly, a nonlinear adaptive sliding mode control law of the integrated guidance and control system is designed in order to directly obtain the rudder deflection command, which eliminates time delay caused by the traditional backstepping control method. Then the Lyapunov stability theory is used to prove the stability of the whole closed-loop integrated guidance and control system. Finally, the simulation results confirm that the integrated guidance and control method proposed in this paper can effectively improve the interception performance of the interceptor to a high-speed maneuvering target.

Research into the Variable Speed Pump Control System for Driving the Cutter Head of Shield Tunneling Machine

2009 ◽  
Vol 628-629 ◽  
pp. 257-262 ◽  
Author(s):  
Tong Xing
Keyword(s):  
Control System ◽  
Hydraulic System ◽  
Closed Loop ◽  
Control Method ◽  
Control Technique ◽  
Closed Loop Control ◽  
Variable Speed ◽  
Shield Tunneling ◽  
Loop Control ◽  
Cutter Head

The cutter head drive hydraulic system of φ1.8m simulate shield machine is introduced in this article, which has the variable speed pump control technique and the closed loop control method. The AMESim simulation model of the hydraulic system is built up, and the efficiency of the hydraulic system, speed control performance by open loop and closed loop control are analyzed. The result of the simulation shows that the variable speed pump control system has higher efficiency than the variable displacement pump control system about 4%-26% in the same condition when the cutter head speed is at the range of 0.5-4r/min, and the hydraulic system has good dynamic characteristics in closed-loop PID control.

Theoretical Analysis and Experimental Study on Automatic Trajectory Tracking Control of a Shield Tunneling Machine under Pressure Regulation Working Mode

2011 ◽  
Vol 317-319 ◽  
pp. 1444-1451
Author(s):  
Hai Bo Xie ◽  
Xiao Ming Duan ◽  
Hua Yong Yang ◽  
Zhi Bin Liu
Keyword(s):  
Control System ◽  
Working Conditions ◽  
Trajectory Tracking ◽  
Pid Control ◽  
Tracking Control ◽  
Shield Tunneling ◽  
Trajectory Tracking Control ◽  
Variable Gain ◽  
Thrust System ◽  
Tunneling Machine

Hydraulic thrust system is a critical part of shield tunneling machine. Automatic trajectory tracking control is a significant task of thrust system during tunnel excavation. In this article, plane mechanical structure diagram of the thrust system and path planning method are illustrated at first. An integrated control system is proposed to achieve the automatic control of the thrust trajectory. The control system consists of one trajectory planning controller for both cylinders and an individual cylinder controller for each of hydraulic cylinders. Trajectory planning controller is used to generate respective displacement signals of double-cylinder in every thrust stroke and each of cylinder controllers is used to realize the precise control of the given thrust trajectory. Variable-gain PID control strategy applied to achieve the precise tracking control of thrust trajectory under several typical working conditions are done at last. The experimental results demonstrate that variable-gain PID control have good performances with short response time and small overshoot regardless of changes of working conditions.

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