Information Management Practice of Cold Rolling Progress Based on "High-Speed Management"

A unit of high-speed, large-scale, continuous, automated PCM, which is used for production process information management practice, is introduced in this paper. According to the practice of cold rolling equipment and "High-speed Management," advanced management methods and tools are embedded to process control, so as to achieve online control of "quality flow", real-time evaluation and improvement.

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Prevention of Mountain Disasters and Maintenance of Residential Area through Real-Time Terrain Rendering

Sustainability ◽

10.3390/su13052950 ◽

2021 ◽

Vol 13 (5) ◽

pp. 2950

Author(s):

Su-Kyung Sung ◽

Eun-Seok Lee ◽

Byeong-Seok Shin

Keyword(s):

Real Time ◽

Graphics Processing Units ◽

High Speed ◽

Large Scale ◽

Civil Engineering ◽

Three Dimensional ◽

Sampled Data ◽

Residential Areas ◽

Terrain Rendering ◽

Mountain Disasters

Climate change increases the frequency of localized heavy rains and typhoons. As a result, mountain disasters, such as landslides and earthworks, continue to occur, causing damage to roads and residential areas downstream. Moreover, large-scale civil engineering works, including dam construction, cause rapid changes in the terrain, which harm the stability of residential areas. Disasters, such as landslides and earthenware, occur extensively, and there are limitations in the field of investigation; thus, there are many studies being conducted to model terrain geometrically and to observe changes in terrain according to external factors. However, conventional topography methods are expressed in a way that can only be interpreted by people with specialized knowledge. Therefore, there is a lack of consideration for three-dimensional visualization that helps non-experts understand. We need a way to express changes in terrain in real time and to make it intuitive for non-experts to understand. In conventional height-based terrain modeling and simulation, there is a problem in which some of the sampled data are irregularly distorted and do not show the exact terrain shape. The proposed method utilizes a hierarchical vertex cohesion map to correct inaccurately modeled terrain caused by uniform height sampling, and to compensate for geometric errors using Hausdorff distances, while not considering only the elevation difference of the terrain. The mesh reconstruction, which triangulates the three-vertex placed at each location and makes it the smallest unit of 3D model data, can be done at high speed on graphics processing units (GPUs). Our experiments confirm that it is possible to express changes in terrain accurately and quickly compared with existing methods. These functions can improve the sustainability of residential spaces by predicting the damage caused by mountainous disasters or civil engineering works around the city and make it easy for non-experts to understand.

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A real-time control method-based simulation for high-speed trains on large-scale rail network

International Journal of Modern Physics C ◽

10.1142/s0129183117501261 ◽

2017 ◽

Vol 28 (10) ◽

pp. 1750126 ◽

Cited By ~ 1

Author(s):

Yutong Liu ◽

Chengxuan Cao ◽

Yaling Zhou ◽

Ziyan Feng

Keyword(s):

Real Time ◽

Traffic Flow ◽

High Speed ◽

Large Scale ◽

Simulation Method ◽

Real Time Control ◽

Rail Network ◽

Time Control ◽

High Speed Trains ◽

Rail Traffic

In this paper, an improved real-time control model based on the discrete-time method is constructed to control and simulate the movement of high-speed trains on large-scale rail network. The constraints of acceleration and deceleration are introduced in this model, and a more reasonable definition of the minimal headway is also presented. Considering the complicated rail traffic environment in practice, we propose a set of sound operational strategies to excellently control traffic flow on rail network under various conditions. Several simulation experiments with different parameter combinations are conducted to verify the effectiveness of the control simulation method. The experimental results are similar to realistic environment and some characteristics of rail traffic flow are also investigated, especially the impact of stochastic disturbances and the minimal headway on the rail traffic flow on large-scale rail network, which can better assist dispatchers in analysis and decision-making. Meanwhile, experimental results also demonstrate that the proposed control simulation method can be in real-time control of traffic flow for high-speed trains not only on the simple rail line, but also on the complicated large-scale network such as China’s high-speed rail network and serve as a tool of simulating the traffic flow on large-scale rail network to study the characteristics of rail traffic flow.

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RealTE: Real-time Trajectory Estimation Over Large-Scale Road Networks

Journal of Web Engineering ◽

10.13052/jwe1540-9589.21210 ◽

2022 ◽

Author(s):

Qibin Zhou ◽

Qingang Su ◽

Dingyu Yang

Keyword(s):

Travel Time ◽

Real Time ◽

High Speed ◽

Road Network ◽

Large Scale ◽

Road Networks ◽

Trajectory Data ◽

Real Time Traffic ◽

Histogram Estimation ◽

Traffic Estimation

Real-time traffic estimation focuses on predicting the travel time of one travel path, which is capable of helping drivers selecting an appropriate or favor path. Statistical analysis or neural network approaches have been explored to predict the travel time on a massive volume of traffic data. These methods need to be updated when the traffic varies frequently, which incurs tremendous overhead. We build a system RealTER⁢e⁢a⁢l⁢T⁢E, implemented on a popular and open source streaming system StormS⁢t⁢o⁢r⁢m to quickly deal with high speed trajectory data. In RealTER⁢e⁢a⁢l⁢T⁢E, we propose a locality-sensitive partition and deployment algorithm for a large road network. A histogram estimation approach is adopted to predict the traffic. This approach is general and able to be incremental updated in parallel. Extensive experiments are conducted on six real road networks and the results illustrate RealTE achieves higher throughput and lower prediction error than existing methods. The runtime of a traffic estimation is less than 11 seconds over a large road network and it takes only 619619 microseconds for model updates.

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A POINT-BASED ASYNCHRONOUS REMOTE VISUALIZATION FRAMEWORK FOR REAL-TIME VIRTUAL REALITY

International Journal of Image and Graphics ◽

10.1142/s0219467808003040 ◽

2008 ◽

Vol 08 (02) ◽

pp. 189-207

Author(s):

JINGHUA GE ◽

DANIEL J. SANDIN ◽

TOM PETERKA ◽

ROBERT KOOIMA ◽

JAVIER I. GIRADO ◽

...

Keyword(s):

Virtual Reality ◽

Real Time ◽

High Speed ◽

Large Scale ◽

Julia Set ◽

Remote Visualization ◽

Space Partition ◽

Original Dataset ◽

View Reconstruction ◽

Occlusion Culling

High speed interactive virtual reality (VR) exploration of scientific datasets is a challenge when the visualization is computationally expensive. This paper presents a point-based remote visualization pipeline for real-time virtual reality (VR) with asynchronous client-server coupling. Steered by the client-end frustum request, the remote server samples the original dataset into 3D point samples and sends them back to the client for view updating. From every view updating frame, the client incrementally builds up a point-based geometry under an octree-based space partition hierarchy. At every view-reconstruction frame, the client continuously splats the available points onto the screen with efficient occlusion culling and view-dependent level of detail (LOD) control. An experimental visualization framework with a server-end computer cluster and a client-end head-tracked autostereo VR desktop display is used to visualize large-scale mesh datasets and ray-traced 4D Julia set datasets. The overall performance of the VR view reconstruction is about 15 fps and independent of the original dataset complexity.

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Research and Implementation of the MES System in the Cold-Rolled Plant Based on ERP

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.225-226.573 ◽

2011 ◽

Vol 225-226 ◽

pp. 573-576

Author(s):

Kai Bi Zhang ◽

Xiao Jin Ren

Keyword(s):

Information Systems ◽

Process Control ◽

Data Acquisition ◽

Production Process ◽

Information Management ◽

Production Performance ◽

Production Data ◽

Actual Production ◽

Cold Rolled ◽

Mes System

In the article, functional requirements need to be analyzed for Chongqing four manufacturing execution systems in cold-rolled steel production line. Combined with the idea of design of the system it can be proposed overall design of information systems and network topologies. Meanwhile, it can also be designed technology and production performance modules based the ERP system platform. Focus on design the production performance of functional modules and interface combined with 1450 actual production process. Production data to be collected need to be establishing the simulation model of the node .Do achieve the simulation of the actual production process. Meantime, the simulation data will be collected to the production performance module through the interface with the real-time database. Chongqing four steel companies as state Enterprises, it should be attached great importance to enterprise information. It has not basically realized the bottom of the production process control system, but also the initial establishment of the upper information management system. However, the underlying automation system and upper management information systems are not integrated. This situation seriously affects the application of effective information systems. The method can only deal with the current manual operations, which leads to the following series of questions: the basis of the data delay line failure; Based data acquisition product line transmission efficiency is low and error rate is high; Production site data scattered in many different processes link manually using the original production data acquisition and transmission are difficult to track products from production through to finished off the assembly line of the whole process; Top manufacturing information system based on production data can not directly access to hard to complete implementation of its functions. In response to these problems, Chongqing four steel companies build MES system, marketing integration, the information management systems and process control systems integration as a whole, and thus the implementation of ERP systems and decision support systems, and further enhance their core competitiveness.[1,7]

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A New Method for High Speed CAN Protocol Conversion Circuit

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.596.873 ◽

2014 ◽

Vol 596 ◽

pp. 873-876

Author(s):

Qi Li ◽

Yan Fei Liu ◽

Da Cheng Luo ◽

Jing Jing Yang

Keyword(s):

Real Time ◽

High Speed ◽

Large Scale ◽

Can Bus ◽

New Method ◽

Time Performance ◽

Test Instrument ◽

Protocol Conversion

Due to high correspondence speed, great real-time performance and good expansibility, CAN bus has been used widely in aerospace, large-scale equipments and other fields these years .This paper introduces a kind of CAN Bus Test Instrument based on PXI bus and FPGA, which is used to test and monitor the CAN bus equipment. The result of test shows that this kind of test instrument has great advantages in reliability, stability and extensibility.

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A Design of Position Terminal Based on BDS

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.635-637.1128 ◽

2014 ◽

Vol 635-637 ◽

pp. 1128-1131

Author(s):

Xing Hong Kuang ◽

Zhe Yi Yao ◽

Shi Ming Wang

Keyword(s):

Data Collection ◽

Real Time ◽

High Precision ◽

High Speed ◽

Large Scale ◽

High Efficiency ◽

Satellite Navigation ◽

Navigation Systems ◽

Time Data ◽

High Precision Measurement

With the development of economy, the global satellite navigation system with its high speed, high efficiency, high precision measurement and positioning a series of significant advantages, favored by various industry data collection and monitoring of personnel resources , the advent of satellite navigation systems to solve a large-scale, rapid and high-precision global positioning problem. Its scope of application has penetrated to the various departments of the national economic and social development in various fields and industries. To be able to monitor the progressive realization of automated data collection and transmission, the urgent need to adopt advanced positioning technology to build real-time location monitoring system PC Based Development Background navigation receiver , an overview of the inter Beidou BD-126 systems and microcontrollers can be serially the basic principle of mouth communication describes the communication protocol Compass BD-126 positioning module and the next crew between the microcontroller to control development in the use of PC positioning system for a detailed description , including the BDS Beidou satellite navigation module and microcontroller serial data communications, microprocessor controlled real-time data display , and so on

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Real-time evaluation of compaction quality based on RF- ACGWO with high robustness and generalization ability

Journal of Engineering Research ◽

10.36909/jer.9907 ◽

2021 ◽

Vol 9 ◽

Author(s):

Weiwei Lin ◽

◽

Bo Cui ◽

Jiajun Wang ◽

Dong Kang ◽

...

Keyword(s):

Real Time ◽

Large Scale ◽

Prediction Models ◽

Evaluation Model ◽

Real Life ◽

Three Dimensions ◽

Engineering Project ◽

Practical Evaluation ◽

Project Site ◽

Time Evaluation

The effective evaluation of compaction quality is a key issue for the safety of earth-rock dams. However, existing prediction models of compaction quality are designed to improve prediction accuracy but generally ignore generalizability and robustness, resulting in deviations from practical evaluation results, making these models inapplicable to complex construction environments. To address these problems, a novel real-time evaluation model for construction unit compaction quality based on random forest optimized by adaptive chaos grey wolf algorithm (RF-ACGWO) is proposed in this article. In RF-ACGWO, RF predicts compaction quality, while ACGWO increases efficiency and accuracy for traditional RF parameter selection and improves the generalizability and robustness of the model. Also, meteorological factors at a project site are also considered to affect the model, thereby improving model accuracy. After embedding the proposed method in a Three-Dimensions (3D) rolling monitoring system, real-time evaluation, guidance and feedback on a project site can be obtained. Compared to the conventional evaluation methods, RF-ACGWO achieves the highest accuracy of 0.838, the best generalizability of 0.793 and the most stable robustness when applied to a large-scale, real-life hydraulic engineering project.

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