Industrial Control Computer Research Articles

Real-Time Microscopic Traffic Simulation and Optimization at Intersections with Video Traffic Detection

In this paper, real-time vehicular data from video traffic detection (VTD) are used for minimizing the travel delay at intersections and a real-time traffic optimization model, based on the SUMO traffic simulation software, is established accordingly. The proposed model is implemented in a small industrial control computer which serves as the communication interface between the traffic signal control system, the traffic simulation and optimization model and the real-time video traffic detection equipment to optimize the respective signal timing plans. The decision to shorten or extend the respective green time can be made at each second under the current development. To verify the results of the simulation study a field study is undertaken in Hefei, China. The overall intersection performances before and after the signal timing optimization are calculated and compared. The results show that the method proposed in this paper can significantly minimize the vehicle delay and the corresponding air pollution in real time.

Research and Implementation of High Precision Power Parameter Acquisition Technology Based on LabVIEW

On the analysis of function requirements of the power parameter acquisition system during the test for intelligent low-voltage electrical apparatus, a high precision power parameter acquisition system based on LabVIEW was proposed. The hardware platform of the acquisition system was made up of industrial control computer, high precision sensors and high speed data acquisition card. According to the measuring principles and calculation methods of different power parameters, corresponding data acquisition, analysis and processing software is developed by LabVIEW software. Finally, the application example shows that the acquisition can carry out real-time and accurate acquisition and processing on related power parameters.

Research and Design of Automatic Control System of Hot Water Boiler Based On PLC

In this paper, there are three scheme of PLC+ PC control program have been put forward for l0T/h hot water boiler. The multi variable, nonlinear, uncertain complex process automatic control is realized, and the thermal efficiency of the hot water boiler is improved. Each boiler in the system is controlled by the respective PLC, the public part is controlled by a set of PLC, an industrial control computer as an engineer station, an industrial control computer as an operator station, field bus Profibus-DP network was comprised by Industrial control computer, PLC. Fameview software was designed to achieve the redundant control of the upper monitor of the two boiler.

PLC Based Fault Diagnosis System for Ion Nitrogen Furnace

In this paper, we present a fault diagnosis method for nitrogen furnace. According to the analysis of the typical faults of the nitrogen furnace, we use the sensor of programmable logic controller to obtain its circuit parameters, send them to industrial control computer, and diagnose the faults using the configuration software. Experiments demonstrate that our method can collect, display, storage, and diagnose the fault information in a real time, which confirm its potential applications in the nitrogen-chemical industry.

The Implementation of Computer Data Processing Software for EAST NBI

One of the most important project missions of neutral beam injectors is the implementation of 100 s neutral beam injection (NBI) with high power energy to the plasma of the EAST superconducting tokamak. Correspondingly, it's necessary to construct a high-speed and reliable computer data processing system for processing experimental data, such as data acquisition, data compression and storage, data decompression and query, as well as data analysis. The implementation of computer data processing application software (CDPS) for EAST NBI is presented in this paper in terms of its functional structure and system realization. The set of software is programmed in C language and runs on Linux operating system based on TCP network protocol and multi-threading technology. The hardware mainly includes industrial control computer (IPC), data server, PXI DAQ cards and so on. Now this software has been applied to EAST NBI system, and experimental results show that the CDPS can serve EAST NBI very well.

Development of a TriaxialMicro EDM Machine Tool Based on Programmable Multi-Axes Controller (PMAC)

Based on the research of key technologies for achieving micro EDM process, a triaxialmicro EDM machine tool based on PMAC has been developed. The micro EDM machining tool consists of four parts: triaxial precision motion platform, motion control system, micro-energy pulse generator and CCD microscope imaging system. The hardware and software control system based on industrial control computer and PMAC has been researched. The motion control program and PLC program have been developed for precise controlling the triaxial precision motion platform. The indispensable functions for micro EDM process such as contact perception function for measurement; fast servo control strategy for short circuit and so on has been achieved. Through a number of processing tests, it is proved that the triaxial micro EDM machine tool has the ability for machining micro holes, micro slots and micro structures steadily.

Research and Design of Servo Electric Control System for Injection Mould Machine

An automatic injection mould machine for servo electric control system was introduced to deal with the existing problem of the control system of hydraulic injection mould machine. With the industrial control computer, the embedded industrial control computer is used as Main Processing Unit, other four units which are ejection, measurement, mode-locked and ejector were controlled by servo motor computer, with the combination of the control structure of cascade system. With the transformation instruction of AC servo, the control was accurate, the quality of products were improved, the energy was saved and consumption was slowed down..

Heterogeneous PLC Control Communications and Fault Intelligent Diagnosis

As an industrial control computer,PLC has been widely used in industrial automation area. Through the bus interface module or industrial Ethernet interface module, PLC can communicate with the master PLC, and realize fault intelligent diagnosis. There are all numerous types of PLC, they have respective advantages and disadvantages, and can meet the needs of the user, but in shape, form, function, programming, they are not identical. This paper mainly introduces Mitsubishi PLC, Siemens PLC and OMRON PLC, simultaneously researches their respective communication characteristics and method of fault diagnosis, provide users choosing PLC a theoretical reference basis.

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

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.

基于CPCI总线DMA方式的实时高速数据交换系统

This paper represents a systematic methodology to establish design requirements for the real-time data exchange between the industrial control computer based on Compact PCI and the device controller of heavy ion accelerator. The system core models include, PCI model based on FPGA which achieves PCI configuration and PCI master controller, DSP HPI controller which can transport data from FIFO to SDRAM or vice versa, and PCI device driver on microsoft Windows 7. The paper describes in detail how logic models cooperate with each other. Especially when DMA is executing, signals of FIFO for data exchange are used to control PCI master state machine and HPI state machine. Additionally, an interrupt INTA# is sent to Windows 7 as soon as DAM is finished. For verifying the feasibility of the system, a test application is designed which can non-stop write data to SDRAM by DMA or read data from SDRAM to memory by the same way. Thorough checking of the system shows rigorous conformance to the requirements of heavy ion synchrotron running.

Temperature Monitoring System Based on PLC

The programmable controller is an industrial control computer; it is the new automatic device inherited computer, automatic control technology and communication technology. System temperature signal detected by the temperature sensor. The temperature transmitter will be the temperature value converted into a voltage signal of 0-10V into PLC. PLC voltage signal setting compared to the temperature deviation after PID operation; the system will issue a temperature control signal to reach the electric heater voltage control. So that it implements a continuous control of the temperature. The temperature monitoring system in the industrial field has a certain value. DOI: http://dx.doi.org/10.11591/telkomnika.v11i12.3988

The Control System of Automated Stereoscopic Warehouse with Application of Web Information Technology

The entire structure of automated warehouse control system is determined. The industrial control computer, the graphical user interface, PLC and other devices are connected by the CAN bus. The radio frequency identification system is used to the identification of the goods in warehouse. Its composition and the working principle are discussed, and the recognition system workflow is designed. The paper discussed the implementation of system control bus and the workflow of control software. The warehouse management system is designed to work well reflected in the network information technology. The connected automated warehouse with the warehouse management system is a better solution to the entire supply chain problems in companies

A Dynamic Film Thickness Control System Based on Automatic Wind Ring

Film thickness is one of the important parameters in the plastic film production process.A dynamic film thickness control system ,gradually adjusting the opening degree of the wind ring, is utilized for real-time control film thickness, enabling the film thickness to meet the requirements.This paper proposes a dynamic film thickness control system based on automatic wind ring ,consisting of industrial control computer, capacitance detection module, wing ring device , motor drives and so on.Then it further states the method of controlling the opening degree of wind ring by a series of stepper motors. The method can make the film thickness uniformity better,combining the traditional film production line with an idea of controlling automatic wind ring .

Research and Design of the PLC-Based Control System for Thermal Power Plant Flue Gas Desulfurization

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.

Research on Software Architecture of the Design and Development of the Computer System on the Basis of Industrial Process Control

The industrial production of each link has widespread application of industrial process control in the computer system, the reliability and openness of the hardware equipment and hardware system should be ensured in the industrial process control computer system, implement rational software system architecture design should also be ensured, which plays a key role in the guarantee of the advancement and practicability of the system.

The Design of Innovative Control Technology Integrated Experiment System for Engineering Applications

The design of innovative control technology integrated experiment system for engineering applications, which completed integrated experiment system design based on modern automation control technology. It contents regular control, intelligent electrical appliances, programmable logic controller (PLC), inverter, industrial control computer automation technology card. This system represents modern control technology in electrical engineering application, and it can complete overview of the teaching experiment such as motor control, electric control technology, programmable control technology, man-machine interface configuration technology, PLC control technology based on personal computer soft logic, computer control technology and industrial control system design, and this work can expand for modern automation technology, a open and development of scientific research platform.

Design of the Wireless Data Acquisition System – Substation Management System

Aiming at the problems of the poor extensibility, complicated routing and inconvenient for real-time monitoring of the traditional data acquisition of the Overhead Crane, the wireless data acquisition system was designed based on the industrial wireless transmission equipment. This system takes the use of ND250 digital radio, the Schenck weighting sensor and the industrial control computer. Combining with the weighting data management software in the upper system, the wireless data acquisition system of the Overhead Crane has been realized in this paper. Compared with the traditional data acquisition system, this system own the superiority of low power consumption, large network capacity and flexible organized-manners .

Distributed Intelligent Control System Design Based on CAN Bus

The hydraulic drive valve intelligent control system was discussed. Two grades, the field cell and the remote control cell, were used in the distributed control system. The communications of the system were implemented by Controller Area Network (CAN). At the first grade, single-chip microcomputer (SCM) acted as the control chip. The sampling pressure signal in pipeline was transformed into the output digital control signal by the controller. The digital direction valve acted as a transformation unit which converts the electric signal to mechanical action in the hydraulic circuit. The control process was realized by the digital signal directly acting on the step electrical motor. At the second grade, the industrial-control computer with a favorable man-machine conversation interface was used to realize monitor function.

Open Style Network Control System of Multi-Sucker Wall-Climbing Mechanism

This paper presents an open-architecture network motion controller system of Multi-sucker Wall-climbing Mechanism. It uses motion controller as control system kernel and industrial control computer as its system sustaining cell, also introduces system function, hardware configuration and the method of software design base on bus, winsock process manages off-line tasks. Complete the development of the client and server programming and networks of movement control system base on the C/S structure. Experiment show that the same wave between the actual speed of electrical and given speed. Delay is very small, constant speed along the passage of the volatility, run smoothly up and no speed super. The motion control system achieves some excellent capabilities such as precise trajectory, little responding time, high precision in fixing position.

Mine Pump Control System Based on KJD30Z Industrial Control Computer

With the increase of mining depth, the condition of underground water gushing becomes more complicated and uncertain; thus, the traditional pump control program cannot meet all the needs of safety production in coal mines. To this condition, the automatic pump control system based on KJD30Z mine intrinsically safe industrial control computer has been put forward, and pump automatic control system is formed. The automatic control of pump turn-on, turn-off and shift are realized according to the change of water bunker level. And so the real-time monitor of underground pump station from ground centralized control, In this way, better communication and alarm function can be formed, which is also quite helpful for the reliability of drainage system and the operation of economy.