scholarly journals Real-Time Control of a Video Game Using Eye Movements and Two Temporal EEG Sensors

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Abdelkader Nasreddine Belkacem ◽  
Supat Saetia ◽  
Kalanyu Zintus-art ◽  
Duk Shin ◽  
Hiroyuki Kambara ◽  
...  
Keyword(s):  
Eye Movements ◽  
Real Time ◽  
Eye Movement ◽  
Video Game ◽  
Classification Accuracy ◽  
Response Speed ◽  
Real Time Control ◽  
Time Control ◽  
Control Interface ◽  
Strong Motivation

EEG-controlled gaming applications range widely from strictly medical to completely nonmedical applications. Games can provide not only entertainment but also strong motivation for practicing, thereby achieving better control with rehabilitation system. In this paper we present real-time control of video game with eye movements for asynchronous and noninvasive communication system using two temporal EEG sensors. We used wavelets to detect the instance of eye movement and time-series characteristics to distinguish between six classes of eye movement. A control interface was developed to test the proposed algorithm in real-time experiments with opened and closed eyes. Using visual feedback, a mean classification accuracy of 77.3% was obtained for control with six commands. And a mean classification accuracy of 80.2% was obtained using auditory feedback for control with five commands. The algorithm was then applied for controlling direction and speed of character movement in two-dimensional video game. Results showed that the proposed algorithm had an efficient response speed and timing with a bit rate of 30 bits/min, demonstrating its efficacy and robustness in real-time control.

scholarly journals Hardware RTOS: Custom Scheduler Implementation Based on Multiple Pipeline Registers and MIPS32 Architecture

Electronics ◽  
2019 ◽  
Vol 8 (2) ◽  
pp. 211 ◽  
Author(s):  
Ionel Zagan ◽  
Vasile Găitan
Keyword(s):  
Real Time ◽  
Response Speed ◽  
Real Time Control ◽  
Shared Resources ◽  
Time Control ◽  
Systems Software ◽  
Switch Operation ◽  
And Performance ◽  
Dynamic Scheduler ◽  
Time Systems

The task context switch operation, the inter-task synchronization and communication mechanisms, as well as the jitter occurred in treating aperiodic events, are crucial factors in implementing real-time operating systems (RTOS). In practice and literature, several solutions can be identified for improving the response speed and performance of real-time systems. Software implementations of RTOS-specific functions can generate significant delays, adversely affecting the deadlines required for certain applications. This paper presents an original implementation of a dedicated processor, based on multiple pipeline registers, and a hardware support for a dynamic scheduler with the following characteristics: performs unitary event management, provides access to architecture shared resources, prioritizes and executes the multiple events expected by the same task. The paper also presents a method through which interrupts are assigned to tasks. Through dedicated instructions, the integrated hardware scheduler implements tasks synchronization with multiple prioritized events, thus ensuring an efficient functioning of the processor in the context of real-time control.

Real-Time Control of a Video Game With a Direct Brain???Computer Interface

2004 ◽  
Vol 21 (6) ◽  
pp. 404-408 ◽  
Author(s):  
Steven G. Mason ◽  
Regula Bohringer ◽  
Jaimie F. Borisoff ◽  
Gary E. Birch
Keyword(s):  
Real Time ◽  
Video Game ◽  
Brain Computer Interface ◽  
Computer Interface ◽  
Real Time Control ◽  
Time Control

scholarly journals Magnetic levitation planar motor and its adaptive contraction backstepping control for logistics system

2021 ◽  
Vol 13 (3) ◽  
pp. 168781402110047
Author(s):  
Weiran Wang ◽  
Guanjun Yang ◽  
Jinghao Yan ◽  
Huilin Ge ◽  
Pengfei Zhi
Keyword(s):  
Real Time ◽  
Magnetic Levitation ◽  
Good Control ◽  
Response Speed ◽  
Transportation System ◽  
Real Time Control ◽  
Control Effect ◽  
Logistics System ◽  
Time Control ◽  
Thrust And Torque

Magnetic levitation planar motor has the characteristics of no friction loss, fast dynamic response, and real-time change of transportation track according to the demand. Therefore, a kind of magnetic levitation planar motor based on logistics transportation system is designed, which can meet the transportation needs of the logistics system through any combination of unit modules. Firstly, based on the mechanical model of magnetic levitation float in Halbach permanent magnet array magnetic field, establishing the thrust and torque model of maglev float. Secondly, according to the force/current relationship, considering the influence of uncertain parameters and load disturbance on the system, the decoupling control model of six degree of freedom motion system of magnetic levitation planar motor is established. Thirdly the adaptive contraction backstepping (ACB) controller is derived that can eliminate the uncertain disturbance of the nonlinear model and realize the real-time control of the system. The simulation and experimental results demonstrate that the method has expected response speed, strong robustness, and good dynamic tracking performance. Applying it to the logistics transportation system described in this article and has a good control effect.

Real-time Control Interface for a Steerable Intermediate Unit in Long Combination Vehicles

ATZ worldwide ◽  
2017 ◽  
Vol 119 (6) ◽  
pp. 64-67
Author(s):  
Michael Hofmann ◽  
Sebastian Franz ◽  
Mohammad Manjurul Islam ◽  
Bengt Jacobson
Keyword(s):  
Real Time ◽  
Real Time Control ◽  
Time Control ◽  
Control Interface ◽  
Intermediate Unit

A Real Time Control Architecture for Continuously Managing Patients in a Care Unit

1995 ◽  
Vol 34 (05) ◽  
pp. 475-488
Author(s):  
B. Seroussi ◽  
J. F. Boisvieux ◽  
V. Morice
Keyword(s):  
Real Time ◽  
Linear Time ◽  
Treatment Plan ◽  
Control Architecture ◽  
Real Time Control ◽  
Time Representation ◽  
Time Control ◽  
Continuous Support ◽  
Definition Of ◽  
Computerized System

Abstract:The monitoring and treatment of patients in a care unit is a complex task in which even the most experienced clinicians can make errors. A hemato-oncology department in which patients undergo chemotherapy asked for a computerized system able to provide intelligent and continuous support in this task. One issue in building such a system is the definition of a control architecture able to manage, in real time, a treatment plan containing prescriptions and protocols in which temporal constraints are expressed in various ways, that is, which supervises the treatment, including controlling the timely execution of prescriptions and suggesting modifications to the plan according to the patient’s evolving condition. The system to solve these issues, called SEPIA, has to manage the dynamic, processes involved in patient care. Its role is to generate, in real time, commands for the patient’s care (execution of tests, administration of drugs) from a plan, and to monitor the patient’s state so that it may propose actions updating the plan. The necessity of an explicit time representation is shown. We propose using a linear time structure towards the past, with precise and absolute dates, open towards the future, and with imprecise and relative dates. Temporal relative scales are introduced to facilitate knowledge representation and access.

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