Serial Communication System of Mobile Devices and Embedded Computer Based on C/S Structure

2011 ◽  
Author(s):  
Xiaoyue Liu ◽  
Xing Li
Keyword(s):  
Mobile Devices ◽  
Communication System ◽  
Serial Communication ◽  
Embedded Computer ◽  
Computer Based

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.

The Changing Face of Assistive Technology

2015 ◽  
pp. 2068-2076
Author(s):  
James R. Stachowiak
Keyword(s):  
Assistive Technology ◽  
Mobile Devices ◽  
Operating Systems ◽  
Mobile Technology ◽  
People With Disabilities ◽  
Cost Effective ◽  
Ease Of Use ◽  
The World ◽  
Computer Based ◽  
Access Information

Computer-based Assistive Technology (AT) has had a powerful effect on people with disabilities in the areas of reading, writing, communicating, and accessing information. One of the roadblocks for use has always been the expense of AT. Advancements in computing and mobile technology, however, are making some technology more readily available, accessible, and cost effective for people with disabilities. Computer operating systems, for example, now contain features to magnify screens for reading and in the entering of text. The mobile movement of smartphones, e-readers, and tablets has also been changing the way people with disabilities access information. The capabilities of these devices combined with the immediate availability, affordability, and ease of use, has been making the world more accessible for people with disabilities, and with mobile devices increasingly becoming a necessity for most, this trend is anticipated to only continue.

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.

scholarly journals Virtual Distributed Supervision and Control for an Automated Greenhouse.

2014 ◽  
Vol 2 (3) ◽  
Author(s):  
Jorge Hernández Camacho ◽  
Laura E. Muñoz Hernández ◽  
Juan Carlos Acosta Guadarrama ◽  
Virgilio López Morales
Keyword(s):  
Water Consumption ◽  
Communication System ◽  
Serial Communication ◽  
Ventilation System ◽  
Production Quality ◽  
Optimal Production ◽  
Distributed Communication ◽  
On Line ◽  
Physical Variables ◽  
And Control

In order to have an optimal production in a Green-house, it is necessary to regulate the artificial micro-environment. By controlling the main physical variables (temperature, humidity, irrigation cycles, etc.) as well as the variables involved in the rates of plants growing (nutrients, sun radiation, water, etc.), the plant’s production quality, the energy and water consumption can be optimized. For instance, temperature and humidity can be regulated by opening or drawing the ventilation system or domes or by heating or circulating the air inside the greenhouse. These tasks should be constantly supervised by a supervised distributed communication system. In this paper, we propose a distributed serial communication system based on microcontrollers to monitoring and supervising the process via Internet, in order to achieve the on-line supervision and control of the greenhouse operation and environmental conditions as well as the main variables (temperature, humidity, irrigation cycles, etc.).

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