Research and Design Embedded Security Computer Based on TMR for Train-Ground Communication System

2012 ◽  
Vol 178-181 ◽  
pp. 2673-2679
Author(s):  
Xiao Qing Zeng ◽  
Jing Zhu ◽  
Tian Sheng Xiong ◽  
Tuo Shen ◽  
Le Xiang Wei
Keyword(s):  
Computer System ◽  
Communication System ◽  
Electromagnetic Compatibility ◽  
Safety Standards ◽  
Infrared Communication ◽  
Security Technologies ◽  
Embedded Computer ◽  
Computer Based ◽  
Modular Redundancy ◽  
Embedded Security

Train-Ground communication system is mainly used to complete the communication between the train and the ground, the data which is produced by security computer system is vital to safe operation. The paper focus on the reliability and security technologies of embedded computer system and evaluates the reliability of TMR (Triple Modular Redundancy), which is based on the existing research of security computer and aimed on the equipment of CBTC Train-Ground communication system. The technology of CBTC Train-Ground communication is studied and the structure of the TMR for Train-Ground communication system is designed in the paper. Furthermore, the fault - safety circuits，electromagnetic compatibility technology and rail traffic-related safety standards are analyzed. Finally, the Train-Ground infrared communication security transponder system based TMR is applied to Shanghai People's Square Line 8 subway train’s double-door control system.

Pattern-Recognition: A Comparison of the Performance of Clinicians and Non-Clinicians - with a Note on the Performance of a Computer-Based System

1972 ◽  
Vol 11 (01) ◽  
pp. 32-37 ◽  
Author(s):  
F. T. DE DOMBAL ◽  
J. C. HORROCKS ◽  
J. R. STANILAND ◽  
P. J. GUILLOU
Keyword(s):  
Pattern Recognition ◽  
Computer System ◽  
Computer Aided Diagnosis ◽  
Clinical Interview ◽  
Computer Performance ◽  
Pattern Size ◽  
Computer Aided ◽  
Computer Based ◽  
Aided Diagnosis ◽  
Better Than

This paper describes a series of 10,500 attempts at »pattern-recognition« by two groups of humans and a computer based system. There was little difference between the performances of 11 clinicians and 11 other persons of comparable intellectual capability. Both groups’ performances were related to the pattern-size, the accuracy diminishing rapidly as the patterns grew larger. By contrast the computer system increased its accuracy as the patterns increased in size.It is suggested (a) that clinicians are very little better than others at pattem-recognition, (b) that the clinician is incapable of analysing on a probabilistic basis the data he collects during a traditional clinical interview and examination and (c) that the study emphasises once again a major difference between human and computer performance. The implications as - regards human- and computer-aided diagnosis are discussed.

Research on Reconfigurable High-Speed Serial Bus Used in High-Reliability Embedded Computer

2010 ◽  
Vol 20-23 ◽  
pp. 774-778
Author(s):  
Rui Ding ◽  
Yong Qin Hu ◽  
Wei Gong Zhang ◽  
Bo Yang
Keyword(s):  
Computer System ◽  
High Speed ◽  
Communication Protocol ◽  
High Reliability ◽  
Dynamic Reconfiguration ◽  
System A ◽  
Embedded Computer ◽  
Key Points ◽  
Application Scope

The characteristics and limitations of the buses, which are widely used nowadays, are analyzed in this paper. Because these buses don’t adapt to the high-reliability embedded computer system, a novel bus is proposed which is characterized by its high-reliability. And its capacity is reached through its unique datum’s dynamic reconfiguration mechanism. The basic architecture and communication protocol are presented in this paper. And then the key points during realization of this bus are discussed. Finally, the probably application scope and prospects are indicated.

scholarly journals VLC-Based Car-to-Car Communication

2020 ◽  
Vol 20 (1) ◽  
pp. 16
Author(s):  
Arnez Pramesti Ardi ◽  
Ilham Sukma Aulia ◽  
Rizky Ardianto Priramadhi ◽  
Denny Darlis
Keyword(s):  
Visible Light ◽  
Communication System ◽  
Control Unit ◽  
Visible Light Communication ◽  
Engine Control Unit ◽  
Experimental Results ◽  
Vehicle Speed ◽  
Engine Control ◽  
Infrared Communication ◽  
Car Accidents

Based on data from the Indonesian Traffic Corps by September 2019, the number of car accidents was dominated by rear-hit crashes with 6,966 accidents. Most of these accidents occurred during car convoys. It needs a car-to-car communication to increase driver awareness. One of the technologies that can be applied is Visible Light Communication (VLC) and infrared communication. The transmitted data are the vehicle speed data, throttle position, and brake stepping indicator. The data are obtained by reading the Engine Control Unit (ECU) in the car. The data are packaged from the three data and sent to other cars at day and night using VLC and infrared communication. The experimental results show that in a communication system that uses VLC, data can be exchanged between cars during the day up to 2 meters and at night up to 11 meters. Otherwise, in infrared communication, vehicles can communicate during the day up to 2 meters and at night up to 0.7 meter. The test was also carried out with some conditions such as rain, smoke, passers, and other vehicle lights.

Embedded Computer System Requirements Workshop

Computer ◽  
1985 ◽  
Vol 18 (4) ◽  
pp. 67-70 ◽  
Author(s):  
White ◽  
Lavi
Keyword(s):  
Computer System ◽  
Embedded Computer ◽  
System Requirements

Design of a Prototype for Vision Prosthesis

2018 ◽  
Vol 7 (2) ◽  
pp. 1-13
Author(s):  
V. Bhujanga Rao ◽  
P. Seetharamaiah ◽  
Nukapeyi Sharmili
Keyword(s):  
Visual Information ◽  
Ganglion Cells ◽  
Electrode Array ◽  
Laboratory Model ◽  
Electric Pulses ◽  
Embedded Computer ◽  
Field Of Vision ◽  
Led Array ◽  
Electrical Pulses ◽  
Computer Based

This article describes how the field of vision prostheses is currently being developed around the world to restore useful vision for people suffering from retinal degenerative diseases. The vision prosthesis system (VPS) maps visual images to electrical pulses and stimulates the surviving healthy parts in the retina of the eye, i.e. ganglion cells, using electric pulses applied through an electrode array. The retinal neurons send visual information to the brain. This article presents the design of a prototype vision prosthesis system which converts images/video into biphasic electric stimulation pulses for the excitation of electrodes simulated by an LED array. The proposed prototype laboratory model has been developed for the design of flexible high-resolution 1024-electrode VPS, using an embedded computer-based efficient control algorithm for better visual prediction. The prototype design for the VPS is verified visually through a video display on an LCD/LED array. The experimental results of VPS are enumerated for the test objects, such as, palm, human face and large font characters. The results were found to be satisfactory.

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