A mathematical model of man-machine system is considered.Based on the reference [4],the direction and stability of the Hopf bifurcation are determined using the normal form method and the center manifold theory.Furthe...A mathematical model of man-machine system is considered.Based on the reference [4],the direction and stability of the Hopf bifurcation are determined using the normal form method and the center manifold theory.Furthermore,the existence of Hopf-zero bifurcation is discussed.In the end,some numerical simulations are carried out to illustrate the results found.展开更多
A digital man-machine interaction system controlled by communications between two processors of TMS320F240 and AT98C2051 was researched in the paper. The system is easy to set and modify welding process parameters by ...A digital man-machine interaction system controlled by communications between two processors of TMS320F240 and AT98C2051 was researched in the paper. The system is easy to set and modify welding process parameters by keyboards, and display information of welding site by LCD (Liquid Crystal Display). As one part of multi-task system about TIG welding machine, the coordination of man-machine interaction system with other tasks is the main point to the stability and reliability of its operation. Experiments result indicates that the system is stable, operation-flexible, high precision, and anti-interfering.展开更多
Dashboard similar structure design is a kind of interactive design of ergonomics and industrial design, and also the consistency design of functional features and visual organization effect of dashboard. Functional fe...Dashboard similar structure design is a kind of interactive design of ergonomics and industrial design, and also the consistency design of functional features and visual organization effect of dashboard. Functional feature design of dashboard is the analysis of man-machine interface, and visual organization effect design of dashboard is a branch of industrial design, both of them interact and unite.展开更多
with the rapid development of hi-tech at present, the college English curriculum teaching of higher education in our country faces an inevitable deep reform and innovation. In order to effectively improve the English ...with the rapid development of hi-tech at present, the college English curriculum teaching of higher education in our country faces an inevitable deep reform and innovation. In order to effectively improve the English application ability of undergraduates, this paper analyzes the integration of interpersonal teaching and man-machine teaching in college English, illustrates the connotation and the current situation of interpersonal and man-machine teaching and makes deep research of integration of these two teaching modes. The author proposes to fully exert the features and advantages of interpersonal teaching and multi-media teaching and hopes to improve the teaching quality of college English through the analysis and research of this paper.展开更多
In this paper, we conduct research on the man-machine interactive environment VR and the applications on vocational educationand training under the perspective of interactivity. With the increase in the general standa...In this paper, we conduct research on the man-machine interactive environment VR and the applications on vocational educationand training under the perspective of interactivity. With the increase in the general standard of social knowledge level and competition intensifi es,more and more people have a goal to build a lifelong learning system, according to their own hobbies, work and the needs of the marketcompetition. Under this condition, the vocational education is becoming more and more essential. This paper integrates the VR and man-machineinteractive concept to propose the new education paradigm that is innovative.展开更多
In this paper, we conduct research on the man-machine engineering theory and the applications on furniture design and interior decoration design. Furniture is one of the important media, contacts and relationships bet...In this paper, we conduct research on the man-machine engineering theory and the applications on furniture design and interior decoration design. Furniture is one of the important media, contacts and relationships between building it by their own different shape and size provide comfortable environment for people. Ergonomics is the study of human activity and the claim size on the surrounding environment, how to make furniture to better serve people' s life and work. Our research proposed novel paradigm of the man-machine engineering theory which is meaningful.展开更多
Function allocation is one of the necessary stages in the design course of man-machine systems since appropriate function allocation makes the whole system more effective, reliable and inexpensive. Therefore, our rese...Function allocation is one of the necessary stages in the design course of man-machine systems since appropriate function allocation makes the whole system more effective, reliable and inexpensive. Therefore, our research mainly focuses on the problems of function allocation between man and machine in man-machine systems, analyses each capability advantage of man and machine according to their respective inherent characteristics and makes a comparison between them. In view of highly uncertain characteristics of decision attribute value in the practical process, we introduce the uncertain linguistic multiple attribute decision making (ULMADM) method in the function allocation process. Meanwhile, we also use the uncertain extended weighted arithmetic averaging (UEWAA) method to determine the automation level range of the operator functions. Then, we eventually estab- lish the automation level of man-machine function allocation by using the multi-attribute decision making algorithm, which is combined by UEWAA and uncertain linguistic hybrid aggregation (ULHA) operators. Finally, an example about function allocation is given, that is, fault diagnosis in the cockpit of civil aircraft. The final result of the example demonstrates that the proposed method about function allocation is feasible and effective.展开更多
Identifying code has been widely used in man-machine verification to maintain network security.The challenge in engaging man-machine verification involves the correct classification of man and machine tracks.In this s...Identifying code has been widely used in man-machine verification to maintain network security.The challenge in engaging man-machine verification involves the correct classification of man and machine tracks.In this study,we propose a random forest(RF)model for man-machine verification based on the mouse movement trajectory dataset.We also compare the RF model with the baseline models(logistic regression and support vector machine)based on performance metrics such as precision,recall,false positive rates,false negative rates,F-measure,and weighted accuracy.The performance metrics of the RF model exceed those of the baseline models.展开更多
With the introduction of high-speed trains into chinese railway system, closeattention should be paid to the aspects of safety in hish-speed railways. Thereare many interfaces which are very important and directly rel...With the introduction of high-speed trains into chinese railway system, closeattention should be paid to the aspects of safety in hish-speed railways. Thereare many interfaces which are very important and directly related to drivmgsafety. This paper focuses on features of design and analyses the principles ofsafety.展开更多
A system that allows computer interaction by disabled people with very low mobility and who cannot use the standard procedure based on keyboard and mouse is presented. The development device uses the patient’s volunt...A system that allows computer interaction by disabled people with very low mobility and who cannot use the standard procedure based on keyboard and mouse is presented. The development device uses the patient’s voluntary biomechanical signals, specifically, winks—which constitute an ability that generally remains in this kind of patients—, as interface to control the computer. A prototype based on robust and low-cost elements has been built and its performance has been validated through real trials by 16 users without previous training. The system can be optimized after a learning period in order to be adapted to every user. Also, good results were obtained in a subjective satisfaction survey that was completed by the users after carrying out the test trials.展开更多
In this paper, a multiple intelligence man-machine system is put forward for productionmanagement through hierarchical cooperation in mining district, based on computer network. Thesystem’s architectural structure an...In this paper, a multiple intelligence man-machine system is put forward for productionmanagement through hierarchical cooperation in mining district, based on computer network. Thesystem’s architectural structure and operational principle are introduced. The system’s communicationbase, conference base, model base, decision base and intelligence subsystem are expounded. Besides,combining the system with a practical instance is presented to illustrate the application of the system.展开更多
This paper describes a man-machine interface system using EOG and EMG. A manipulator control system using EOG and EMG is developed according to EOG and EMG. With the eye movement, the system enabled us to control a ma...This paper describes a man-machine interface system using EOG and EMG. A manipulator control system using EOG and EMG is developed according to EOG and EMG. With the eye movement, the system enabled us to control a manipulator. EOG is using for moving the robot joint angles and EMG is using for object grasping. The EOG and EMG discrimination method is used to control the robot. The robot arm joint movements are determined by the EOG discrimination method where the polarity of eye gaze motion signals in each Ch1 and Ch2. The EMG discrimination method is used to control arm gripper to grasp and release the target object. In the robot control experiment, we are successfully control the uArmTM robot by using both EOG and EMG discrimination method as the control input. This control system brings the feasibility of man-machine interface for elderly person and handicapped person.展开更多
Accidents in a nuclear power plant are coped with by operators in the main control room (MCR). An analysis of the workload of operators in a MCR after the happening of initiating events is helpful to the alleviation o...Accidents in a nuclear power plant are coped with by operators in the main control room (MCR). An analysis of the workload of operators in a MCR after the happening of initiating events is helpful to the alleviation of human errors and to the promotion of training efficiency. This paper establishes a framework of how man is located in a man-machine interface of a nuclear power plant (NPP) as well as a simulation of the man-machine scenario in accidents in NPPs, including the simulation of the operators' task and cognitive work and the establishment of task analysis. On the basis of the above, a model of the dynamic changes of the operators' tasks is constructed and a computation of operators' workload is conducted.展开更多
The EMS supporting system of thesecond phase extension project for NortheastElectric Network dispatching automationsystem, co-developed by Electric PowerResearch Institute. Ministry of ElectricPower, and Northeast Chi...The EMS supporting system of thesecond phase extension project for NortheastElectric Network dispatching automationsystem, co-developed by Electric PowerResearch Institute. Ministry of ElectricPower, and Northeast China Electric PowerGroup, is an open type, object oriented CC-2000 EMS/DMS supporting system withChinese proprietary copyright and anadvanced international level. It passed thetechnical appraisal of Ministry of ElectricPower in Oct. 1996. This EMS supportingsystem includes four parts f managementenvironment of the system operation.database management system. big object forpower system, man-machine interface. Theexperience of developing and operationindicates that the EMS supporting system haspowerful functions, the performance index isvery high, the operation is stable and reliable.the ability of supporting EMS/DMS is morepowerful than the first phase system. Thedevelopment work of the super applicationsoftware of Northeast Power Network EMS(Energy Management System) will befinished in 1997 on the supporting system.thereby an integrated and open EMS of ourcountry’s own copyright will be completed.展开更多
Effective monitoring techniques and equipment are essential for the prevention and control of coal and rockdynamic disasters such as rockburst. Based on the fact that there is charge generation during deformation andr...Effective monitoring techniques and equipment are essential for the prevention and control of coal and rockdynamic disasters such as rockburst. Based on the fact that there is charge generation during deformation andrupture of coal rock body and the charge signals contain a large amount of information about the mechanicalprocess of deformation and rupture of coal rock, the rockburst charge sensing monitoring technology has beenformed. In order to improve the charge sensing technology for monitoring and early warning of rockburst disasters, this paper develops a new generation of portable coal rock charge monitoring instrument on the basis ofthe original instrument and carries out laboratory and underground field application. The primary advancementinvolves enhancing the external structure of the sensor and increasing the charge sensing area, which can morecomprehensively capture the charge signals from the loaded rupture of the coal rock body. The overall structure ofthe data acquisition instrument has been improved, the monitoring channels have been increased, and thefunction of displaying the monitoring data curve has been added, so that the coal and rock body force status canbe grasped in time. The results of the experimental study show that the abnormal charge signals can be monitoredduring the rupture process of rock samples under loading, and the monitored charge signals are in good agreement with the sudden change of stress in the rock samples and the formation of crack extension. There is aprecursor charge signal before the stress mutation, and the larger the loading rate is, the earlier the precursorcharge signal appears. The charge monitoring instrument can monitor the charge signal of the coal seam roadwayunder strong mining pressure. In the zone of elevated overburden pressure, the amount of induced charge is large,and anomalously high value charge signals can be monitored when a coal shot occurs. The change trend of thecharge at different measuring points of strike and inclination has a good consistency with the distribution ofoverrunning support pressure and lateral support pressure, which can reflect the stress distribution and the degreeof stress concentration of the coal body through the size and location of the charge, foster early warning andanalysis of rockburst, and provide target guidance for the prevention and control of rockburst.展开更多
This paper mainly introduces a model of the Object-Oriented User Interface Gen-eration Tool (OOUIGT) and describes the procedure of the implementation. The oOUIGT (FasTool) has been implemented on SGI workstation. Thi...This paper mainly introduces a model of the Object-Oriented User Interface Gen-eration Tool (OOUIGT) and describes the procedure of the implementation. The oOUIGT (FasTool) has been implemented on SGI workstation. This enables the UI designing not to be a lower level programming procedure, but to be a higher level description procedure which is formal,convenient, comprehensive and fast.展开更多
Porduction planning often comes up in the form of programming problem with continuous variables, where investment project planing usually reduces to cero-one programming. Combination of the choices of investment proje...Porduction planning often comes up in the form of programming problem with continuous variables, where investment project planing usually reduces to cero-one programming. Combination of the choices of investment projects with the existent production capacity, therefore, yields mixed integer programming. With this background, this paper provides a new approach to solving mixed integer programming problems by combining the man-machine interactive method for multiobjective programming with graphics generating techniques.展开更多
基金Foundation item: Supported bY the Natural Science Foundation of Ningxia(NZ09204) Supported by the Youth Foundation of Ningxia Teacher's Universlty(QN2010002)
文摘A mathematical model of man-machine system is considered.Based on the reference [4],the direction and stability of the Hopf bifurcation are determined using the normal form method and the center manifold theory.Furthermore,the existence of Hopf-zero bifurcation is discussed.In the end,some numerical simulations are carried out to illustrate the results found.
文摘A digital man-machine interaction system controlled by communications between two processors of TMS320F240 and AT98C2051 was researched in the paper. The system is easy to set and modify welding process parameters by keyboards, and display information of welding site by LCD (Liquid Crystal Display). As one part of multi-task system about TIG welding machine, the coordination of man-machine interaction system with other tasks is the main point to the stability and reliability of its operation. Experiments result indicates that the system is stable, operation-flexible, high precision, and anti-interfering.
文摘Dashboard similar structure design is a kind of interactive design of ergonomics and industrial design, and also the consistency design of functional features and visual organization effect of dashboard. Functional feature design of dashboard is the analysis of man-machine interface, and visual organization effect design of dashboard is a branch of industrial design, both of them interact and unite.
文摘with the rapid development of hi-tech at present, the college English curriculum teaching of higher education in our country faces an inevitable deep reform and innovation. In order to effectively improve the English application ability of undergraduates, this paper analyzes the integration of interpersonal teaching and man-machine teaching in college English, illustrates the connotation and the current situation of interpersonal and man-machine teaching and makes deep research of integration of these two teaching modes. The author proposes to fully exert the features and advantages of interpersonal teaching and multi-media teaching and hopes to improve the teaching quality of college English through the analysis and research of this paper.
文摘In this paper, we conduct research on the man-machine interactive environment VR and the applications on vocational educationand training under the perspective of interactivity. With the increase in the general standard of social knowledge level and competition intensifi es,more and more people have a goal to build a lifelong learning system, according to their own hobbies, work and the needs of the marketcompetition. Under this condition, the vocational education is becoming more and more essential. This paper integrates the VR and man-machineinteractive concept to propose the new education paradigm that is innovative.
文摘In this paper, we conduct research on the man-machine engineering theory and the applications on furniture design and interior decoration design. Furniture is one of the important media, contacts and relationships between building it by their own different shape and size provide comfortable environment for people. Ergonomics is the study of human activity and the claim size on the surrounding environment, how to make furniture to better serve people' s life and work. Our research proposed novel paradigm of the man-machine engineering theory which is meaningful.
文摘Function allocation is one of the necessary stages in the design course of man-machine systems since appropriate function allocation makes the whole system more effective, reliable and inexpensive. Therefore, our research mainly focuses on the problems of function allocation between man and machine in man-machine systems, analyses each capability advantage of man and machine according to their respective inherent characteristics and makes a comparison between them. In view of highly uncertain characteristics of decision attribute value in the practical process, we introduce the uncertain linguistic multiple attribute decision making (ULMADM) method in the function allocation process. Meanwhile, we also use the uncertain extended weighted arithmetic averaging (UEWAA) method to determine the automation level range of the operator functions. Then, we eventually estab- lish the automation level of man-machine function allocation by using the multi-attribute decision making algorithm, which is combined by UEWAA and uncertain linguistic hybrid aggregation (ULHA) operators. Finally, an example about function allocation is given, that is, fault diagnosis in the cockpit of civil aircraft. The final result of the example demonstrates that the proposed method about function allocation is feasible and effective.
基金Project supported by the National Natural Science Foundation of China(Nos.61673361 and 61422307)
文摘Identifying code has been widely used in man-machine verification to maintain network security.The challenge in engaging man-machine verification involves the correct classification of man and machine tracks.In this study,we propose a random forest(RF)model for man-machine verification based on the mouse movement trajectory dataset.We also compare the RF model with the baseline models(logistic regression and support vector machine)based on performance metrics such as precision,recall,false positive rates,false negative rates,F-measure,and weighted accuracy.The performance metrics of the RF model exceed those of the baseline models.
文摘With the introduction of high-speed trains into chinese railway system, closeattention should be paid to the aspects of safety in hish-speed railways. Thereare many interfaces which are very important and directly related to drivmgsafety. This paper focuses on features of design and analyses the principles ofsafety.
文摘A system that allows computer interaction by disabled people with very low mobility and who cannot use the standard procedure based on keyboard and mouse is presented. The development device uses the patient’s voluntary biomechanical signals, specifically, winks—which constitute an ability that generally remains in this kind of patients—, as interface to control the computer. A prototype based on robust and low-cost elements has been built and its performance has been validated through real trials by 16 users without previous training. The system can be optimized after a learning period in order to be adapted to every user. Also, good results were obtained in a subjective satisfaction survey that was completed by the users after carrying out the test trials.
文摘In this paper, a multiple intelligence man-machine system is put forward for productionmanagement through hierarchical cooperation in mining district, based on computer network. Thesystem’s architectural structure and operational principle are introduced. The system’s communicationbase, conference base, model base, decision base and intelligence subsystem are expounded. Besides,combining the system with a practical instance is presented to illustrate the application of the system.
文摘This paper describes a man-machine interface system using EOG and EMG. A manipulator control system using EOG and EMG is developed according to EOG and EMG. With the eye movement, the system enabled us to control a manipulator. EOG is using for moving the robot joint angles and EMG is using for object grasping. The EOG and EMG discrimination method is used to control the robot. The robot arm joint movements are determined by the EOG discrimination method where the polarity of eye gaze motion signals in each Ch1 and Ch2. The EMG discrimination method is used to control arm gripper to grasp and release the target object. In the robot control experiment, we are successfully control the uArmTM robot by using both EOG and EMG discrimination method as the control input. This control system brings the feasibility of man-machine interface for elderly person and handicapped person.
文摘Accidents in a nuclear power plant are coped with by operators in the main control room (MCR). An analysis of the workload of operators in a MCR after the happening of initiating events is helpful to the alleviation of human errors and to the promotion of training efficiency. This paper establishes a framework of how man is located in a man-machine interface of a nuclear power plant (NPP) as well as a simulation of the man-machine scenario in accidents in NPPs, including the simulation of the operators' task and cognitive work and the establishment of task analysis. On the basis of the above, a model of the dynamic changes of the operators' tasks is constructed and a computation of operators' workload is conducted.
文摘The EMS supporting system of thesecond phase extension project for NortheastElectric Network dispatching automationsystem, co-developed by Electric PowerResearch Institute. Ministry of ElectricPower, and Northeast China Electric PowerGroup, is an open type, object oriented CC-2000 EMS/DMS supporting system withChinese proprietary copyright and anadvanced international level. It passed thetechnical appraisal of Ministry of ElectricPower in Oct. 1996. This EMS supportingsystem includes four parts f managementenvironment of the system operation.database management system. big object forpower system, man-machine interface. Theexperience of developing and operationindicates that the EMS supporting system haspowerful functions, the performance index isvery high, the operation is stable and reliable.the ability of supporting EMS/DMS is morepowerful than the first phase system. Thedevelopment work of the super applicationsoftware of Northeast Power Network EMS(Energy Management System) will befinished in 1997 on the supporting system.thereby an integrated and open EMS of ourcountry’s own copyright will be completed.
基金support of the National Natural Science Foundation of China(Grant no.52304219,52374201)the Liaoning Provincial Science and Technology Plan Project(Grant no.2022-BS-117)Open Project of Liaoning Technical University Liaoning Province Key Laboratory of Mining Environment and Disaster Mechanics(Grant no.MEDM2023-B-5).
文摘Effective monitoring techniques and equipment are essential for the prevention and control of coal and rockdynamic disasters such as rockburst. Based on the fact that there is charge generation during deformation andrupture of coal rock body and the charge signals contain a large amount of information about the mechanicalprocess of deformation and rupture of coal rock, the rockburst charge sensing monitoring technology has beenformed. In order to improve the charge sensing technology for monitoring and early warning of rockburst disasters, this paper develops a new generation of portable coal rock charge monitoring instrument on the basis ofthe original instrument and carries out laboratory and underground field application. The primary advancementinvolves enhancing the external structure of the sensor and increasing the charge sensing area, which can morecomprehensively capture the charge signals from the loaded rupture of the coal rock body. The overall structure ofthe data acquisition instrument has been improved, the monitoring channels have been increased, and thefunction of displaying the monitoring data curve has been added, so that the coal and rock body force status canbe grasped in time. The results of the experimental study show that the abnormal charge signals can be monitoredduring the rupture process of rock samples under loading, and the monitored charge signals are in good agreement with the sudden change of stress in the rock samples and the formation of crack extension. There is aprecursor charge signal before the stress mutation, and the larger the loading rate is, the earlier the precursorcharge signal appears. The charge monitoring instrument can monitor the charge signal of the coal seam roadwayunder strong mining pressure. In the zone of elevated overburden pressure, the amount of induced charge is large,and anomalously high value charge signals can be monitored when a coal shot occurs. The change trend of thecharge at different measuring points of strike and inclination has a good consistency with the distribution ofoverrunning support pressure and lateral support pressure, which can reflect the stress distribution and the degreeof stress concentration of the coal body through the size and location of the charge, foster early warning andanalysis of rockburst, and provide target guidance for the prevention and control of rockburst.
文摘This paper mainly introduces a model of the Object-Oriented User Interface Gen-eration Tool (OOUIGT) and describes the procedure of the implementation. The oOUIGT (FasTool) has been implemented on SGI workstation. This enables the UI designing not to be a lower level programming procedure, but to be a higher level description procedure which is formal,convenient, comprehensive and fast.
文摘Porduction planning often comes up in the form of programming problem with continuous variables, where investment project planing usually reduces to cero-one programming. Combination of the choices of investment projects with the existent production capacity, therefore, yields mixed integer programming. With this background, this paper provides a new approach to solving mixed integer programming problems by combining the man-machine interactive method for multiobjective programming with graphics generating techniques.