Chunhui Wang

astronaut center of china · human factors engineering

In this paper, an aliasing noise restraint technique and a system identification-based surface electromyography (sEMG)-force prediction model are proposed to realize a type of robust sEMG and muscle force prediction. For signal denoising, a novel non-negative matrix factorization screening empirical mode decomposition (NMFSEMD) and a fast orthogona...

Eye movement-based human-computer interactions are emerging in diverse scenarios. When selecting targets on a user interface, the method of combining fast gaze pointing with reliable manual action is becoming increasingly popular. However, this method suffers from noise in gaze pointing caused by eye jitters and users’ habitual early move-away of g...

Objective To investigate the influence of target size and distance to target on the click performance of touchscreen, mouse, touchpad and eye-gaze input, and to serve as an effective reference for the design of human-computer interaction in aerospace. Method Twenty-four participants completed the target click task under four pointing techniques. Th...

Eye tracking is increasingly employed to evaluate operators’ mental workload and the usability of interfaces. In this paper, eye tracking data were recorded for ten operators performing the simulated manually controlled rendezvous and docking (manual RVD) of two space vehicles. Indices such as blink rate, blink duration, percent eyelid closure (PER...

Over the past few decades, the extensive development of human-computer interaction has greatly improved the life of human beings. As a novel form of human-computer interaction (HCI), brain-computer interface (BCI) has shown its potential application values in some special areas such as mental typing, rehabilitation engineering, etc. It is known tha...

A novel healthy state monitor method of upper limb for space flight task is proposed. Without taking other complex diagnosis equipment in orbit, this method only uses the ordinary exercise instruments to collect and analyze the multiple muscle forces of astronauts, and deduces where the serious muscle atrophy occurs in their muscle groups of upper...

Manual control rendezvous and docking (RVD) with human participation can be used when autonomous RVD is invalid under uncertain environment. Because of the particularity and complexity of the RVD task, it is necessary to understand human cognitive processes when evaluating human performance. A modeling approach, focusing on the information processi...

Three-dimensional (3D) spatial ability is a critical cognitive ability of humans. The existing tests for 3D spatial ability are mainly paper-and-pencil tests. In the present paper, we developed computerized tests to evaluate human spatial ability. We chose 3D mental rotation test and 3D perspective taking test as the typical types of 3D spatial abi...

Spatial cognition is a typical human cognitive activity. It is attractive that human can interact with the robot naturally and efficiently in the task of spatial cognition. And so many of scientists have thrown themselves into the research of that great thing. This paper systematically summarized the related work of human-robot natural interaction...

The present study aims to identify the influence of the display of numerical data on human performance in the manually controlled rendezvous and docking (manual RVD) task. Two display schemes were designed and developed in a RVD simulator, one display scheme with numerical data (Display A) and the other without numerical data (Display B). Twelve ma...

Spatial cognition is an important branch of cognition science. The behavior in the spatial cognition interactions between people was studied in our research. And the results will contribute to the design of robot’s cognitive system that similar to those of human which will make the robot much more intelligent to aids in human-robot cooperative work...

Muscle deconditioning occurs in response to simulated or actual microgravity. In spaceflight, astronauts become monkey-like for mainly using their upper limbs to control the operating system and to complete corresponding tasks. The changes of upper limbs' athletic ability will directly affect astronauts' working performance. This study investigated...

This paper explores the application of multifractal detrended fluctuation analysis (MF-DFA) on the nonlinear characteristics of correlation between operation force and surface electromyography (sEMG), which is an applied frontier of human neuromuscular system activity. We established cross-correlation functions between the signal of force and four...

Environmental factors in space are dramatically different from those on Earth. The spaceflight environment has been known to influence human physiology and behavior on orbital missions. In this study, we investigated alterations in the diurnal rhythms of activity and heart rate of three Chinese astronauts on a space mission. An analysis of the hear...

A study of manned lunar rovers’ ergonomic design is presented. Based on summarization and characteristic analysis of NASA’s and other nations’ manned lunar rovers, design status and development trend are resulted. Lessons learned from the ergonomic design of lunar roving vehicles are discussed, when the astronauts are on the lunar EVA suit. Then we...

Slow eye movement (SEM) regarded as a sign of onset of sleep is very significant for detecting driver fatigue, but its characteristics and detection algorithm have been rarely involved in the study of driver fatigue detection. In this study, some new features were extracted based on wavelet singularity analysis and statistics to detect SEMs. Six su...

This study provides a new application of convolutional neural networks for drowsiness detection based on electrooculography (EOG) signals. Drowsiness is charged to be one of the major causes of traffic accidents. Such application is helpful to reduce losses of casualty and property. Most attempts at drowsiness detection based on EOG involve a featu...

Human performance modeling has become more and more popular in cognitive science recently. This paper applies a time-fuel optimal control model to model the human control strategies in a simplified RVD task. Preliminary comparisons had been made between the model performance and the performance of human operators. Results show that the model can mo...

Six-dimensional tracking and control task within an Integrated Cognitive Architecture, as a makeup for automated Six-dimensional tracking and control task default. is a common yet highly complex space operation, challenging the human workload. For space exploration system safety, workload is a critical factor in task design and implementation. This...

Sliding tactile perception is a basic function for human beings to determine the mechanical properties of object surfaces and recognize materials. Imitating this process, this paper proposes a novel finger-shaped tactile sensor based on a thin piezoelectric polyvinylidene fluoride (PVDF) film for surface texture measurement. A parallelogram mechani...

Manually controlled rendezvous and docking (manual RVD) is a challenging space task for astronauts. This study aims to identify spatial abilities that are critical for accomplishing manual RVD. Based on task analysis, spatial abilities were deduced to be critical for accomplishing manual RVD. 15 Male participants performed manual RVD task simulatio...

Astronauts are exposed to numerous stressors during spaceflights, to reduce the faulty operations and improve human performance in manually controlled rendezvous and docking (manual RVD) of space vehicles, a method, which applies sophisticated cognitive architecture Adaptive control of thought---rational (ACT-R ) to model astronaut's cognitive beha...

Special analysis of astronauts’ motions must be carried out before extravehicular activities in order to design the missions and build the guideline for astronauts training. A method of modeling and simulation of astronauts’ motions during extravehicular activities is developed under the complex system theory. The astronaut in space suit with the b...

The objective of this paper is to elucidate how the ergonomic experiment is designed to simulate the space operation conditions and evaluate the influence of these conditions on mechanical characteristics of basic actions. The ergonomic methodologies and data analysis technologies are translated into a potential for better understanding of astronau...

In order to evaluate the state change of the muscle force of the upper limb for the astronaut after a long time space flight, a bed test is designed to analyze the human performance of this ergonomics problem. The Detrended Fluctuation Analysis (DFA) technique is utilized to evaluate the change situation of the muscle force data. First, some typica...

Fitting formulas of typical parameters were obtained through analysis of anthropometric parameters of armored car driver and operators. These formulas could be a basis for design of product and equipment of cars, cumulating and updating of basic data of similar sample and edition of relative standards. 76 anthropometric static parameters and 11 fun...

In order to evaluate the mental workload of the operators more systematically, a subjective workload rating scale named ICO (short for Input, Cognition and Output) was developed. The structure of the ICO was based on the multiple resource theory. And the Analytic Hierarchy Process was applied in the development of the ICO. 12 subjects participated...

In order to evaluate the Attention Distribution Ability (ADA) of drivers in a more reliable and applicable way, a synthetic evaluation structure which is composed of multiple indices is developed. 12 male subjects participated in the simulated driving tasks which are designed for ADA evaluation. To evaluate the ADA of the subjects, the performance...

Manual-Control Rendezvous and Docking (MCRVD) is a complex and demanding task which requires astronauts to control the direction of six-freedom of the spacecraft accurately by hand. Its performance has a close relationship among the design of the spacecraft HCI, the control ability of the astronaut, and the matching effect of the two factors above....