The latest major domestic greenfield steelmaking facility (owned by The Timken Company) has been completed, using the state of the art technology in computer and microprocessor based control. The automation and contro...
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ISBN:
(纸本)0914331566
The latest major domestic greenfield steelmaking facility (owned by The Timken Company) has been completed, using the state of the art technology in computer and microprocessor based control. The automation and control functions for the steelmaking process are provided by a plant wide network of computers covering seven major areas of process and support operations. At the heart of each parallel leg of the distributed network is a redundant programmable controller configuration providing the fundamental front line processcontrol and automation tasks and feeding the higher level databases with critical real time information about the processes. This paper describes the electric arc furnace raw materials handling (RMH) portion of the plant network, including planning and design issues, system structure, PLC communications, and process application requirements.
The industrial automationcontrol technology is comprehensive technology, mainly including industrial automation hardware, software and systems which reaches inspect, control and optimization, scheduling, management a...
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ISBN:
(纸本)9783037852958
The industrial automationcontrol technology is comprehensive technology, mainly including industrial automation hardware, software and systems which reaches inspect, control and optimization, scheduling, management and decision-making, and increases yield and improve quality, reduce cost, to ensure safety. Industrial automationcontrol technology as the most important technology in modern manufacturing in 20th century, which mainly solve the problem of production efficiency and consistency. Although automation system itself is not directly creating benefit of enterprise production, but it has obvious effect of ascension process. Our industrial automationcontrol development road, mostly in the introduction of complete sets of equipment, and at the same time the digestion and absorption of second development and application. Currently our industrial automationcontrol technology, industry and applications have developed greatly in industrial computer system, has been formed. At present, industrial automationcontrol technology is intelligent, network integration and development direction([1]).
In this paper, we study inspection business model based on the distribution network, and spatial data model and the network automatic generating technique, which use GIS and satellite positioning. Furthermore, we stud...
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ISBN:
(纸本)9781538645093
In this paper, we study inspection business model based on the distribution network, and spatial data model and the network automatic generating technique, which use GIS and satellite positioning. Furthermore, we study inspection automatic control method based on speech synthesis technology in order to control the inspection process effectively and ensure the inspection efficiency.
Firstly,a SUV 100% frontal impact process was carried out,the experimental and simulation results were compared with the three aspects of deformation mode,acceleration and energy conversion,and the accuracy of the fin...
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ISBN:
(纸本)9781509001668
Firstly,a SUV 100% frontal impact process was carried out,the experimental and simulation results were compared with the three aspects of deformation mode,acceleration and energy conversion,and the accuracy of the finite element model was verified,and concluded that the energy absorbed by bumper can be accounted for 4.3% of the total internal ***,a new type of bumper structure was obtained through the tailor rolled blank(TRB) design ***,the effectiveness of the TRB bumper structure was verified by means of energy absorption,deformation and acceleration in the 100% frontal impact *** show that under the premise of constant quality,the energy absorption can be increased from 6.51 k J to 7.14 k J,the amount of deformation decreased from 513 mm to 506 mm,and the acceleration peak value decreased from 35.9 g to 34.7 g.
Hewlett-Packard has developed a strategy for phased semiconductor factory automation design and implementation, This strategy allows a semiconductor factory to incorporate progressive levels of factory control softwar...
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ISBN:
(纸本)0780333721
Hewlett-Packard has developed a strategy for phased semiconductor factory automation design and implementation, This strategy allows a semiconductor factory to incorporate progressive levels of factory control software components, automated material handling systems, and real-time process tool control to meet the growing and changing needs of a semiconductor facility, This paper discusses the benefits, interfaces, components and return on investment associated with automation phasing, Included are discussions on modular tool interfaces and control, distributed factory control systems, modular automated material handling systems, distributed stocking, facility systems design, rapid manual contingency operations, reliability considerations and cost benefits of phased approaches.
An intelligent garbage automatic classification device based on single chip microcomputer STC89C52 is designed. The device is equipped with various modules on the basis of ordinary garbage cans to realize the function...
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ISBN:
(数字)9781665458641
ISBN:
(纸本)9781665458641
An intelligent garbage automatic classification device based on single chip microcomputer STC89C52 is designed. The device is equipped with various modules on the basis of ordinary garbage cans to realize the functions of identifying garbage types, automatically classifying garbage after putting it in, and detecting the remaining space in the garbage cans, which improves the intelligence of the system and the market development value of the device. In the design process, the mechanical structure part of itself is analyzed by SolidWorks 3D modeling. After garbage management and classification, the recyclable utilization rate of resources can be maximized, and the amount of garbage treatment can be reduced. Garbage can be classified and treated before manual treatment to convert it into new energy.
The rapid pace of device scaling in recent years has outrun the ability of today's generation of semiconductor manufacturing equipment control systems to keep up. New device architectures and the materials and pro...
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ISBN:
(纸本)9781538637487
The rapid pace of device scaling in recent years has outrun the ability of today's generation of semiconductor manufacturing equipment control systems to keep up. New device architectures and the materials and processes used to realize them create sources of variability that require better techniques for real-time sensing, filtering, detection, and response. This is not simply a question of faster data collection of the existing equipment variables. In many cases, the data needed to accurately determine the real-time process conditions are not even available in the equipment, so the traditional time-based techniques and endpoint detection methods for controlling recipe execution are not sufficient. rather, these advancedprocesses are effectively "flying blind." GLOBALFOUNDRIES, a long-time leader in equipment automation and processcontrol, has addressed these issues by integrating specialty sensors into the broader control environment, effectively closing this gap through a variety of advanced sensorization initiatives that supplement the capabilities of the equipment as delivered by the OEMs. The broad expectations regarding the capabilities of manufacturing equipment and the embedded control systems have recently been described in [1]. Specific examples of advanced sensorization use cases and a standards-based implementation approach have been described in [2]. Now that the measurement gaps for a number of key processes have thus been closed (see Tables 1 and 2), new application opportunities exist for leveraging this enhanced visibility into equipment and process behavior. In particular, the ability to achieve "first-time-right response" to a wide variety of process conditions is now a practical reality. This paper highlights a number of these applications possibilities enabled by "unambiguous signals" on the equipment, and touches on the integration solution used to present these signals seamlessly to the application environment.
The penetration of a high-velocity water-entry projectile into the target plate is investigated using the arbitrary Lagrange-Euler (ALE) method. First, the profiles of the cavities formed during the water entry of a p...
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ISBN:
(数字)9781665458641
ISBN:
(纸本)9781665458641
The penetration of a high-velocity water-entry projectile into the target plate is investigated using the arbitrary Lagrange-Euler (ALE) method. First, the profiles of the cavities formed during the water entry of a projectile are calculated and compared to verify the rationality and accuracy of the proposed computational model and method adopted. Then the characteristics of the high-velocity water-entry projectile penetrating a target plate under three typical cases are simulated to analyze cavity evolution, acceleration and velocity variation of the projectile during water entry process. The effect of penetration angles is analyzed and an increased angle between the target plate and the free surface of the liquid is found to cause a significantly increased peak load of penetration and prolonged penetration time. Simulation results show that in actual penetration of water-entry projectiles into target plates, it is of great necessity to comprehensively evaluate the effects of warhead strength and target attitude on the penetration, so as to provide insights into the research on high-velocity projectile penetration into underwater targets.
This paper focused on the existent technology problems in the dilute acid delinting of cotton seed, it first introduced the traditional process of dilute acid delinting, then combined with the automatic control techno...
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ISBN:
(纸本)9781424438181
This paper focused on the existent technology problems in the dilute acid delinting of cotton seed, it first introduced the traditional process of dilute acid delinting, then combined with the automatic control technology and information processing technology of the controling of concentration temperature and so on during the production process, rebuilt the production process and advanced the framework model about the production control management system of the dilute acid delinting. Practice has proved that such dilute acid delinting technology with automatic control and information processing can effectively improve the quality of cotton seed processing.
With the development of information, power information security risk management has become more and more important. Based on the analysis of the eight information security risk factors, the author assess intiirm Mimi ...
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ISBN:
(纸本)9781538645093
With the development of information, power information security risk management has become more and more important. Based on the analysis of the eight information security risk factors, the author assess intiirm Mimi security risk with the risk matrix method which conceives an assessment model processed by expert 2-dimension matrix, Borda sequence and analytical hierarchy process. An example application shows the total risk level and figure out the biggest risk factor. The research results illustrate the validity and rationality of the above model as well as it will be of much use in improving power information security risk management.
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