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Establishment and application of a remote automatic control platform for CBM production 认领 引用
1
作者 Zou Yuqing Zhao Fengkun +2 位作者 Huang Yong Wang Bo Xiong Jian 《Natural Gas Industry B》 2016年第1期59-65,共7页
Remote data monitoring has been applied in the production of CBM wells.It is necessary to realize remote regulating and automatic control on production systems of CBM wells as soon as possible,so that production cost ... Remote data monitoring has been applied in the production of CBM wells.It is necessary to realize remote regulating and automatic control on production systems of CBM wells as soon as possible,so that production cost can be reduced effectively and fine production of CBM wells can be improved.In this paper,remote production control technologies were designed based on production behaviors of CBM wells.And then,in light of the features of automatic monitoring instruments,automatic production of CBM wells was divided into four stages(i.e.before casing pressure occurring,casing pressure building,initial gas production and gas production).Finally,an automatic control program was developed and embedded into on-site control terminals after study was carried out on automatic control logics and methods of each production stage of CBM wells.It is for the first time that gas and water production of CBM wells are automatically regulated precisely and automatic CBM production modes are adopted with the linkage control of gas and water production.Based on this production network and remote control platform system,terminal operation is controlled and feedback according to the production orders which are set and delivered remotely.In this way,CBM well production is automatically controlled over long distance.Practical operation results in the Hancheng area,Shaanxi,shows that establishment and application of this automatic control platform contribute to the improvement of fine production of CBM wells and their continuous and stable production. 展开更多
关键词 Coalbed methane(CBM) Automatic control Remote Fine production Control logic Platform Shaanxi Hancheng area
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Stability Analysis on Automatic Control Methods of Open Canal 认领 引用
2
作者 FENG Xiaobo WANG Kang 《Wuhan University Journal of Natural Sciences》 CAS 2011年第4期325-331,共7页
The relationship between the automatic control method and the stability of the open canal is studied by means of numerical simulation of unsteady flow in an open canal under different methods of control. It is found t... The relationship between the automatic control method and the stability of the open canal is studied by means of numerical simulation of unsteady flow in an open canal under different methods of control. It is found the Proportional-Proportional plus Reset （P＋PR） control is more reliable than the Linear Quadratic Regulator （LQR） control. Moreover, for the P＋PR control, the hydraulic response of the constant volume method of operation is better than that of the constant downstream depth method in the type of centrally controlled canal. Therefore, an appropriate flow change rate should be chosen instead of shortening the pool length to reach an acceptable drawdown rate. For the canal with a bottom width of 40 m, side slope of 3, Manning n of 0.015, bottom slope of 0.000 04, and design flow of 600 m3/s, the pool length of more than 30 km can provide acceptable drawdown rates of 0.2 m/h when a proper flow change rate is chosen. 展开更多
关键词 open canal automatic control Chinese South-to- North Water Diversion Project unsteady flow
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Automatic Control of Automobile Transmission Performance Test Stand 认领 引用 被引量：2
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作者 阎清东 项昌乐 冯永存 《Journal of Beijing Institute of Technology》 EI CAS 1998年第2期178-183,共6页
To realize automatic control of automobile transmission performance test stand Methods The automatic control technique of the lubricant temperature,the program- controll- edautomaticshifting of the transmission,the co... To realize automatic control of automobile transmission performance test stand Methods The automatic control technique of the lubricant temperature,the program- controll- edautomaticshifting of the transmission,the continuous adjusting of revolution speed and load, data-acquisition and data real-time processing were adopted.Results The lubricant temperature was controlled at the set temperature ±2℃.The automatic shifting of the trans- mission is simple,reliable and accurate.The automatic adjusting of load and rotation speed is rapidandaccurate,the torque divergence is ±1N·m,the rotation speed divergence is ±5r/min Conclusion The four kinds of techniques are applied into the automobile transmission perfor- mance test stand successfully. mancetest stand successfully. 展开更多
关键词 automobile transmission performance test computer-aided test automatic control
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Design of a modern automatic control system for the activated sludge process in wastewater treatment 认领 引用 被引量：4
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作者 Alexandros D.Kotzapetros Panayotis A.Paraskevas Athanasios S.Stasinakis 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2015年第8期1340-1349,共10页
The Activated Sludge Process(ASP) exhibits highly nonlinear properties. The design of an automatic control system that is robust against disturbance of inlet wastewater flow rate and has short process settling times i... The Activated Sludge Process(ASP) exhibits highly nonlinear properties. The design of an automatic control system that is robust against disturbance of inlet wastewater flow rate and has short process settling times is a challenging matter. The proposed control method is an I-P modi fied controller automatic control system with state variable feedback and control canonical form simulation diagram for the process. A more stable response is achieved with this type of modern control. Settling times of 0.48 days are achieved for the concentration of microorganisms,(reference value step increase of 50 mg·L-1) and 0.01 days for the concentration of oxygen(reference value step increase of 0.1 mg·L-1). Fluctuations of concentrations of oxygen and microorganisms after an inlet disturbance of5 × 103m3·d-1are small. Changes in the reference values of oxygen and microorganisms(increases by 10%, 20% and 30%) show satisfactory response of the system in all cases. Changes in the value of inlet wastewater flow rate disturbance(increases by 10%, 25%, 50% and 100%) are stabilized by the control system in short time. Maximum percent overshoot is also taken in consideration in all cases and the largest value is 25% which is acceptable. The proposed method with I-P controller is better for disturbance rejection and process settling times compared to the same method using PI controller. This method can substitute optimal control systems in ASP. 展开更多
关键词 Activated sludge Modern automatic control PID controllers Root locus Waste treatment
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Effectiveness of Automatic Control over Flash Distillation Kettle for Liquid-Phase Bulk Polymerization of Propylene 认领 引用
5
作者 Han Linge Ma Jiantong 《China Petroleum Processing & Petrochemical Technology》 CAS 2004年第3期57-58,共2页
Automatic control over flash distillation section at SINOPEC Cangzhou Refinery has been realized, resulting in saving of propylene feedstock and emission reduction to harvest significant economic benefits.
关键词 polypropylene flash distillation kettle automatic control recovery benefits
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Design and Simulation of an Audio Signal Alerting and Automatic Control System 认领 引用 被引量：1
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作者 Winfred Adjardjah John Awuah Addor +1 位作者 Wisdom Opare Isaac Mensah Ayipeh 《Communications and Network》 2023年第4期98-119,共22页
A large part of our daily lives is spent with audio information. Massive obstacles are frequently presented by the colossal amounts of acoustic information and the incredibly quick processing times. This results in th... A large part of our daily lives is spent with audio information. Massive obstacles are frequently presented by the colossal amounts of acoustic information and the incredibly quick processing times. This results in the need for applications and methodologies that are capable of automatically analyzing these contents. These technologies can be applied in automatic contentanalysis and emergency response systems. Breaks in manual communication usually occur in emergencies leading to accidents and equipment damage. The audio signal does a good job by sending a signal underground, which warrants action from an emergency management team at the surface. This paper, therefore, seeks to design and simulate an audio signal alerting and automatic control system using Unity Pro XL to substitute manual communication of emergencies and manual control of equipment. Sound data were trained using the neural network technique of machine learning. The metrics used are Fast Fourier transform magnitude, zero crossing rate, root mean square, and percentage error. Sounds were detected with an error of approximately 17%;thus, the system can detect sounds with an accuracy of 83%. With more data training, the system can detect sounds with minimal or no error. The paper, therefore, has critical policy implications about communication, safety, and health for underground mine. 展开更多
关键词 Emergency Response Emergency Management Team Audio Signal Alerting Automatic Control System Uni Pro XL Manual Communication Fast Fourier Transform Magnitude Zero Crossing Rate Root Means Square
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Design and realization of the automatic control system for the bell anneal furnace production 认领 引用
7
作者 ZHU Weixin FENG Wenzhuo 《Baosteel Technical Research》 EI CAS 2010年第4期59-64,共6页
In accordance with the technical requirements of the full hydrogen bell anneal furnace(BAF)used for the annealing of stainless steel coils in the Baosteel Stainless Steel Business Unit,the design concept for the autom... In accordance with the technical requirements of the full hydrogen bell anneal furnace(BAF)used for the annealing of stainless steel coils in the Baosteel Stainless Steel Business Unit,the design concept for the automatic control system was introduced in the paper.The major points described concerned the infrastructure of computers and networks,system interfaces,control functions,etc.The process control system of the full hydrogen BAF(L2)was the topic and its seven main functions were introduced.The expected output was achieved and manufacturing efficiency was enhanced within three months after the BAF units were put into operation,which demonstrated that the design concept of the automatic control system introduced in the paper was correct and that its functionalities were effective. 展开更多
关键词 BAF automatic control system design
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Thinking about the Potential Risk in the Operation of Instrument Automatic Control System 认领 引用
8
作者 TAN Jiaxiang GUO Meina 《外文科技期刊数据库（文摘版）工程技术》 2021年第11期1200-1202,共3页
When industrial production equipment, equipment failure problems and are likely to lead to danger, or using improper measures, play to the role of the instrument automatic control system for deteriorating state timely... When industrial production equipment, equipment failure problems and are likely to lead to danger, or using improper measures, play to the role of the instrument automatic control system for deteriorating state timely response and timely start protection measures, to ensure the safety production and equipment parking situation, this will be the lowest risk control, including personnel, production plant and equipment are improved security. With the continuous operation of the production device for a long time, especially in the state of full load, the instrument automatic control system will put forward higher safety and reliability requirements, to ensure that the instrument automatic control system is in normal operation state. This paper focuses on the potential risks in the operation of instrument automatic control system. 展开更多
关键词 instrument automatic control system run potential risks thinking
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Design and Implementation of Automatic Control Drip Irrigation Device in Macadamia Digital Management 认领 引用
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作者 Bo YANG Liming TANG +2 位作者 Zheng FU Zhongwen LIANG Wei HUANG 《Meteorological and Environmental Research》 2021年第6期79-81,共3页
Macadamia has the highest economic value and has always enjoyed the reputation of"king of dried fruits".In the process of digital management,irrigation is the most widely used.This paper designs the automati... Macadamia has the highest economic value and has always enjoyed the reputation of"king of dried fruits".In the process of digital management,irrigation is the most widely used.This paper designs the automatic control drip irrigation device in the digital management of macadamia nuts,including drip irrigation pipe,soil moisture sensor,motor,water storage chamber,water pump and central controller,and then gives an implementation scheme.The device is not only convenient for laying and positioning,but also convenient for controlling the overall irrigation water consumption during each drip irrigation and accurate use and improving the level of digital management. 展开更多
关键词 Macadamia nut Digital agriculture Automatic control system Irrigation
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Application Research of PLC Technology in Automatic Control of Electrical Equipment 认领 引用
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作者 WANG Xiaolong 《外文科技期刊数据库（文摘版）工程技术》 2021年第2期087-091,共5页
PLC technology in the specific application of electrical engineering automation control, mainly as the existence of the processor. Compared with the traditional system, it has incomparable advantages, which are embodi... PLC technology in the specific application of electrical engineering automation control, mainly as the existence of the processor. Compared with the traditional system, it has incomparable advantages, which are embodied in relatively high automation and reliability. So the effective application of PLC technology in electrical engineering automation control can play a very important role, give full play to and use the important role of PLC technology, help to realize the development of electrical engineering automation. This paper mainly focuses on the specific application of PLC technology in electrical engineering automation control. 展开更多
关键词 PLC technology electrical engineering automatic control specific application
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Chemical Safety Production Under the Background of Automatic Control System 认领 引用
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作者 WU Xiuling LIU Jianyun 《外文科技期刊数据库（文摘版）工程技术》 2021年第10期825-828,共4页
In recent years, chemical plant safety emergencies have repeatedly occurred, causing concern from all walks of life. As a result, chemical companies have begun to take measures to manage safety risks in the workplace,... In recent years, chemical plant safety emergencies have repeatedly occurred, causing concern from all walks of life. As a result, chemical companies have begun to take measures to manage safety risks in the workplace, reducing the occurrence of accidents and the loss of commercial value. At the same time, chemical enterprises have formulated the planning goal of automation development, and started to combine the automatic control system in the actual production. Therefore, this paper discusses the application of automatic control system in the field of chemical safety production, and puts forward some suggestions on reducing accidents in the field of chemical safety production. 展开更多
关键词 automatic control system chemical enterprise production safety analysis and research
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The Application of Principle of Automatic Control in the site Management of Electric Power Construction Enterprise 认领 引用
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作者 Bowen Wang 《Journal of Electronic Research and Application》 2020年第3期20-23,共4页
It is need to establish site project department during the construction of electric power project.The head office should design and build the main structure,continually improve structure of project department,meantime... It is need to establish site project department during the construction of electric power project.The head office should design and build the main structure,continually improve structure of project department,meantime,positively apply principle of automatic control to improve the site management of electric power construction.In this article,the application strategy of principle of automatic control is analyzed focusing on the site work of electric power construction. 展开更多
关键词 Principle of automatic control Electric power construction Construction Site management
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Technical Transformation and Application of Automatic Control System for Ore Crushing in Concentrator 认领 引用
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作者 WENHongshun 《外文科技期刊数据库（文摘版）工程技术》 2022年第1期183-186,共4页
Due to the continuous development and improvement of our country's automatic production technology, our country's ore crushing technology has also been greatly improved, so that the mine work efficiency and wo... Due to the continuous development and improvement of our country's automatic production technology, our country's ore crushing technology has also been greatly improved, so that the mine work efficiency and working environment have been improved to a certain extent. Due to the low automation level of crushing technology in traditional mineral processing plants in our country, there are some problems such as harsh construction environment, high labor cost, low work efficiency, etc. In view of this situation, the relevant departments in our country have improved and updated the crushing system in the mines, using the modern DCS automatic control system to improve the crushing work efficiency, liberate human resources, and realize the automatic operation of the crushing work. Compared with the traditional ore crushing technology, the automation degree of the modern ore crushing technology has been greatly improved, the unmanned automation work is realized, not only the work efficiency of ore crushing is improved, but also the possibility of artificial error is reduced, the safety of the ore crushing work is ensured, and a reference basis is provided for subsequent ore dressing in a mine. 展开更多
关键词 concentrator automatic control system for ore crushing technical transformation application effect
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Application of PLC Technology in Automatic Control System 认领 引用
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作者 ZHANGJiping ZHANGXingliang 《外文科技期刊数据库（文摘版）工程技术》 2022年第3期055-058,共4页
The project of electrical automation also accounts for a relatively large proportion in the national production chain. The development and production level of electrical automation also determine the corresponding nat... The project of electrical automation also accounts for a relatively large proportion in the national production chain. The development and production level of electrical automation also determine the corresponding national production level and speed to a certain extent. The strict requirements of electrical engineering will also directly affect the national life. Therefore, electrical automation has always been an important scientific and technological engineering project in China. Electrical Engineering As far as it is concerned, the effective combination of electrical engineering and automatic control technology is the direction with the largest development space. This will not only improve the production efficiency, but also reduce the resource cost and apply the electrical achievements to a wider range of fields. 展开更多
关键词 PLC technology automatic control application
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How to Use PLC to Realize Automatic Control of Electrical Instrument 认领 引用
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作者 QUAN Hongfei XU Shuai 《外文科技期刊数据库（文摘版）工程技术》 2021年第12期1390-1392,共3页
The conventional control electrical instrument scheme is difficult to meet the basic application requirements of the public, and often causes accidents due to omissions. In order to improve the control effectiveness o... The conventional control electrical instrument scheme is difficult to meet the basic application requirements of the public, and often causes accidents due to omissions. In order to improve the control effectiveness of electrical instrumentation, avoid because of the lack of human control, people gradually use the control system of PLC technology, through the effective control of PLC, using the parameters directly, so that people find out the corresponding electric instrument malfunction occurs reason, at the same time also can effectively control electric instrument, avoid the happening of accidents, ensure the practice operation safety and reliability. 展开更多
关键词 PLC technology electrical instrument automatic control
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Study on the Design of Air Separation Device in DCS Automatic Control System 认领 引用
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作者 WANG Yu CHEN Zheng 《外文科技期刊数据库（文摘版）工程技术》 2021年第3期287-289,共3页
With the development of The Times, the computer automatic control technology has been applied to every corner of life and production. Many industries are beginning to use automatic or semi-automatic production lines t... With the development of The Times, the computer automatic control technology has been applied to every corner of life and production. Many industries are beginning to use automatic or semi-automatic production lines to improve production efficiency. In the manufacturing process of industrial gas, the traditional production mode has been unable to meet the needs of modern production. This design will be applied to the automatic control system for industrial gas production process. This paper first introduces the background of this design, and then briefly introduces the composition and work flow of the air separation device. Finally, the design of the measurement and control system, the design of the anti-surge control valve and the control logic design of the anti-surge control valve are introduced in three aspects of this design. 展开更多
关键词 air separation DCS automatic control design
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Application of Intelligent Technology in Automatic Control of Electrical Engineering 认领 引用
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作者 ZHANG Bo FENG Yan 《外文科技期刊数据库（文摘版）工程技术》 2021年第8期372-375,共4页
The development of society reflects the importance of energy economy. Especially in the case of rising power consumption, it is of great significance in electrical engineering and automation technology, which is direc... The development of society reflects the importance of energy economy. Especially in the case of rising power consumption, it is of great significance in electrical engineering and automation technology, which is directly related to the safety and stability of energy economy. Therefore, in the process of enterprise development, we should combine our own actual situation, promote the application of intelligent technology from all aspects of electrical engineering automation control, and provide a solid foundation for the development of enterprises. 展开更多
关键词 electrical engineering automatic control intelligent technology
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Analysis of Automatic Control Technology in Chemical Instrument 认领 引用
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作者 LIUTengfei GAOXiaojun 《外文科技期刊数据库（文摘版）工程技术》 2022年第4期021-024,共4页
Chemical industry is a very important pillar industry in China, which can contribute great value to China's economic development. The only way which must be passed is to develop advanced technology in the chemical... Chemical industry is a very important pillar industry in China, which can contribute great value to China's economic development. The only way which must be passed is to develop advanced technology in the chemical industry. Automatic control technology can not only improve the chemical production efficiency, but also create more benefits. Therefore, improving the automation level and technology is the responsibility that China's chemical instrument management and production management staff must shoulder. Then, the article analyzes the automatic control technology in chemical instruments. 展开更多
关键词 chemical instrument automatic control technical analysis
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Composition and Analysis of Automatic Control System for Air Compressor 认领 引用
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作者 ZHU Yan LI Feng 《外文科技期刊数据库（文摘版）工程技术》 2021年第5期394-396,共3页
Air compressor is an important engineering equipment that is often used. On this basis, we mainly analyze the automatic control technology of air compressor, and introduce and study the actual control effect of air co... Air compressor is an important engineering equipment that is often used. On this basis, we mainly analyze the automatic control technology of air compressor, and introduce and study the actual control effect of air compressor and its monitoring equipment. The related technical characteristics of the machine automatic control system provide the basic automation guarantee for the efficient and reliable operation of the air compressor system. 展开更多
关键词 air compressor automatic control technology analysis
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Discussion on the Application of Automatic Control in Chemical Safety Production 认领 引用
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作者 SHI Xipan ZHU Juntao LI Yuan 《外文科技期刊数据库（文摘版）工程技术》 2021年第10期579-581,共3页
In recent years, with the rapid development of science and technology, modern technology is widely used in the process of chemical production. The current era is developing in the direction of informatization. When ca... In recent years, with the rapid development of science and technology, modern technology is widely used in the process of chemical production. The current era is developing in the direction of informatization. When carrying out chemical safety production, we should constantly expand the application scope of automatic control technology. Based on this, this paper analyzes the problems existing in chemical safety production, such as the low comprehensive quality of staff and the non-compliance of production equipment and technology, and explores the application of automatic control in chemical safety production, including the standardized use of safety instruments, the reasonable application of automatic alarm and the scientific use of emergency braking. 展开更多
关键词 automatic control chemical safety production specific response
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