Motion Simulation Based on Human Vestibular Sensors

2008 ◽  
Author(s):  
Carlos F. Rodri´guez ◽  
Nicola´s Ochoa Lleras
Keyword(s):  
Dynamic Models ◽  
Human Motion ◽  
Motion Cues ◽  
Motion Simulator ◽  
Reference Motion ◽  
Perception Model ◽  
Sensor Signals ◽  
Simulator Motion ◽  
Definition Of ◽  
Vestibular Organs

This article presents a methodology for the definition of vehicle simulator motion cues based on the biomechanical response of the vestibular organs to motion stimuli. The proposed method begins with an extension of the human motion perception model which includes the simulator kinematics. The goal of this procedure is to define the motion cues so that they reproduce vestibular sensor signals matching those of a reference motion, in terms of the Sensor-State vector. This vector is estimated by using dynamic models of the vestibular organs’ biomechanics. A definition of equivalent motion based on properties of these models is introduced. This definition allows for the proposal of a strategy to imitate the vestibular sensor signals. The methodology has been tested in simulation with a 3-dof planar motion simulator, resulting in satisfactory results. Finally, the potential of the proposed methodology is discussed.

The Relationship between Flight Simulator Motion and Training Requirements

1979 ◽  
Vol 21 (4) ◽  
pp. 493-501 ◽  
Author(s):  
PAUL W. CARO
Keyword(s):  
Flight Simulator ◽  
Flight Performance ◽  
Motion Cues ◽  
Training Requirements ◽  
Simulator Design ◽  
Simulator Motion ◽  
External Forces ◽  
The Relationship ◽  
And Training ◽  
Disturbance Cues

Flight simulator motion has been demonstrated to affect performance in the simulator, but recent transfer of training studies have failed to demonstrate an effect upon in-flight performance. However, these transfer studies examined the effects of motion in experimental designs that did not permit a dependency relationship to be established between the characteristics of the motion simulated and the training objectives or the performance measured. Another investigator has suggested that motion cues which occur in flight can be dichotomized as maneuver and disturbance cues, i.e., as resulting from pilot control action or from external forces. This paper examines each type cue and relates it analytically to training requirements. The need to establish such relationships in simulator design is emphasized. Future transfer studies should examine specific training objectives that can be expected to be effected by motion.

Development of a Human Factors Research Laboratory for Off-Road Vehicle Operator Workstation Design

1982 ◽  
Vol 26 (10) ◽  
pp. 896-900 ◽  
Author(s):  
J. R. Duncan ◽  
E. L. Wegscheid
Keyword(s):  
Human Factors ◽  
Research Laboratory ◽  
Degrees Of Freedom ◽  
Human Performance ◽  
Computer Control ◽  
Road Vehicle ◽  
Motion Simulator ◽  
Vehicle Motion ◽  
Simulator Motion ◽  
Human Factors Research

A new human factors research laboratory has been developed to provide reliable human-performance data for the design of improved off-road vehicle operator workstations. The principal research tool within this laboratory is a vehicle operations simulator. The simulator consists of a hydraulically driven platform upon which a vehicle operator's enclosure or workstation can be mounted. Under computer control, the simulator is capable of motion with six degrees-of-freedom. With this capability, the simulator's motion can be programmed to reproduce operator workstation vibration experienced in operational field environments. Both field recorded data and mathematical simulations of existing and proposed vehicles can be used to command the simulator motion. In addition to simulating vehicle motion, the simulator is capable of producing realistic control and monitoring tasks for the operator, as well as operator enclosure environmental conditions. This paper describes the research objectives for which the simulator was built, the specifications used in the design of the vehicle motion simulator system, the hardware selected in implementing that design, and the computer control used to simulate both field and artificial “ride” histories.

Mass and charge conservation check in dynamic models: application to the new ADM1 model

2006 ◽  
Vol 53 (1) ◽  
pp. 225-240 ◽  
Author(s):  
M. de Gracia ◽  
L. Sancho ◽  
J.L. García-Heras ◽  
P. Vanrolleghem ◽  
E. Ayesa
Keyword(s):  
Organic Matter ◽  
Anaerobic Digestion ◽  
Dynamic Models ◽  
Nitrogen Release ◽  
Mass Fluxes ◽  
Systematic Methodology ◽  
Mass Fractions ◽  
Model Components ◽  
Definition Of ◽  
Elemental Mass

This paper proposes a systematic methodology for the analysis of the mass and charge balances in dynamic models expressed using the Petersen matrix notation. This methodology is based on the definition of the model components via elemental mass fractions and in the estimation of the COD as a function of the redox equations associated with these elements. This approach makes the automatic calculation of all the stoichiometric coefficients under different measuring units and the study of COD, charge or mass fluxes easier. As an example of its application this methodology was applied to the ADM1 in order to illustrate its usefulness for the analysis of organic matter characterisation, nitrogen release or biogas composition in anaerobic digestion. The application of the methodology for a rigorous integration of different IWA models is proposed for further study.

scholarly journals Phase structure control in austenite steels during surface strengthening by high-temperature nitride hardenin

2020 ◽  
Vol 2020 (6) ◽  
pp. 3-11
Author(s):  
Larisa Petrova ◽  
Alexandra Sergeeva
Keyword(s):  
High Temperature ◽  
Steel Surface ◽  
Dynamic Models ◽  
Chromium Nitride ◽  
Structure Control ◽  
Surface Strengthening ◽  
Advantages And Disadvantages ◽  
Nitride Formation ◽  
Definition Of ◽  
High Temperature Gas

A problem of austenitic steel surface strengthening is considered. There are shown advantages and disadvantages of common low-temperature and high-temperature gas nitride hardening connected with the prevention of chromium nitride formation on the surface of products. The estimate of nitride steel phase structures on the basis of thermo-dynamic models and an experimental definition of parameters for obtaining an austenite surface alloyed with nitrogen are carried out.

Biped Humanoid Robot Capable of Being Used as Human Motion Simulator

2008 ◽  
pp. 523-531 ◽  
Author(s):  
Hideki Kondo ◽  
Yu Ogura ◽  
Hiroyuki Aikawa ◽  
Kazushi Shimomura ◽  
Akitoshi Morishima ◽  
...  
Keyword(s):  
Humanoid Robot ◽  
Human Motion ◽  
Motion Simulator

Evaluation of a Motion Simulator Not Requiring Cockpit Motion

1969 ◽  
Vol 11 (3) ◽  
pp. 239-243 ◽  
Author(s):  
Gerald V. Barrett ◽  
Patrick A. Cabe ◽  
Carl L. Thornton ◽  
Harold E. Kerber
Keyword(s):  
Low Cost ◽  
Correct Identification ◽  
Motion Cues ◽  
Motion Simulator ◽  
New Type

A new type of system for simulating motion cues employs a seat made up of six differentially inflatable sections. This device was evaluated with a sample of eight pilots in a cockpit mock-up. Seat motion significantly increased rated realism for a series of six maneuvers. When subjects were presented with motion cues while their eyes were closed, correct identification of maneuvers averaged 85% and rated confidence in judgments averaged 76%. The seat was considered to be a relatively simple, low-cost method for simulating motion cues.

EDITING VIRTUAL HUMAN MOTION TECHNIQUES WITH DYNAMIC MOTION SIMULATOR AND CONTROLLER

2015 ◽  
Vol 75 (4) ◽  
Author(s):  
Ismahafezi Ismail ◽  
Mohd Sharizal Sunar
Keyword(s):  
Computer Games ◽  
Dynamic Control ◽  
Human Movement ◽  
Human Motion ◽  
Virtual Human ◽  
Dynamic Motion ◽  
Motion Simulator ◽  
Long Time ◽  
A New Technique ◽  
Proportional Derivative Controller

Modifying realistic virtual human movement has become a challenging task to the researcher for computer games and animation development. To achieve realistic virtual human, the character movement must have same motion like real human. Virtual human movement can be created by blending different sources such as motion capture, dynamic and kinematics simulation. Editing dynamic movement requires a great skill from animator and takes a long time to setup. This paper presents a new technique for editing virtual human motion state using dynamic motion control in the real time animation. The system approach based on active dynamic control by normalizes the trajectory of vector space position. This technique explores the perfect balance in dynamic motion controls for virtual human motion initial and final states. For that purpose, an enhancement of proportional-derivative controller will be used. This paper focuses on three main parts; virtual human hierarchy, motion editing techniques and motion dynamic control.  

Application of Biomedical Signal Acquisition Equipment in Human Sport Heart Rate Monitoring

2020 ◽  
Vol 10 (4) ◽  
pp. 877-883
Author(s):  
Le He
Keyword(s):  
Heart Rate ◽  
Motion Artifact ◽  
Human Motion ◽  
Signal Quality ◽  
Signal Acquisition ◽  
Heart Rate Monitoring ◽  
Artifact Removal ◽  
Biomedical Signal ◽  
Baseline Drift ◽  
Sensor Signals

Aiming at exploring biomedical signal acquisition equipment used in human motion heart rate monitoring, the research on the related hardware design and signal processing method was carried out. A biomedical signal acquisition device based on photoplethysmography (PPG) is designed, and the equipment was applied to acquire PPG signals and acceleration sensor signals under different motion states. The analysis of the experimental data showed that, the fusion method of the acceleration sensing information in the motion artifact removal method is perfected. The effectiveness of the baseline drift removal algorithm, motion artifact removal algorithm and dynamic heart rate monitoring algorithm was verified by reconstructing the signal quality evaluation index. To sum up, taking MINDRAY VS-800 as a reference device, it is compared with the adaptive filtering technology in terms of signal quality, BPM detection results and algorithm complexity, and better results are finally obtained.

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