Real Time Operating Systems for Networked Embedded Systems


Fire Alarm System

Problem
Hundreds of sensors, each fitted with Low Range Wireless
Sensor information to be logged in a server & appropriate action initiated
Possible Solution
Collaborative Action
Routing
Dynamic Sensors/controllers may go down
Auto Configurable No/easy human intervention.
Less Collision/Link Clogging
Less no of intermediate nodes
Fast Response Time
Secure

Real Time System

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AN OVERVIEW OF RECENT DEVELOPMENTS IN NANOTECHNOLOGY FOR SPACE SYSTEMS.
WHY NANOTECHNOLOGY?
Advanced miniaturization, a key thrust area to enable new science and exploration missions
Ultrasmall sensors, power sources, communication, navigation,and propulsion systems with very low mass, volume and power consumption are needed.
Nanotechnology presents a whole new spectrum of opportunities to build device components and systems for entirely new space architecture.
Collection of microspacecraft making a variety of ....etc

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Abstract.
Precise positioning in indoor environments faces different challenges than the outdoor ones. While indoor environments are limited in size to rooms and buildings, outdoor positioning capabilities require regional or even global coverage. Secondly, the difficulty of receipting satellite signals indoors has triggered the development of high sensitive and AGNSS receivers with many issues remaining unsolved. Thirdly, the accuracy requirements are dissimilar between indoor and outdoor environments typically there is ....etc

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AN OVERVIEW OF SMART ANTENNA TECHNOLOGY FOR MOBILE COMMUNICATIONS SYSTEMS


WHAT ARE SMART ANTENNAS?
Base station antennas have up till now been omnidirectional
or sectored. This can be regarded as a waste of power as
most of it will be radiated in other directions than toward the
user. In addition, the power radiated in other directions will
be experienced as interference by other users. The idea of
smart antennas is to use base station antenna patterns that are
not fixe ....etc

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Service-oriented software engineering (SOSE) is a software engineering methodology focused on the development of software systems by the composition of reusable services (service orientation) often provided by other service providers. Because it involves compositing, it shares many features of component-based software engineering, composition of reusable components software systems, but adds the ability to dynamically locate necessary services at run-time. These services can be provided by others as web services, but the essential element is th ....etc

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Embedded systems are increasingly becoming integral parts of almost all technology-oriented applications. Embedded systems are the unsung heroes of much of the technology we use today- video games, washing machines etc. The appliances using embedded systems are pre programmed to perform a dedicated or narrow range of functions as part of a large system, usually with minimal end user interaction and optimum performance. Embedded systems are used in navigation tools like global positioning systems (GPS), automated teller machines(ATM s), network ....etc

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OPERATING SYSTEMS OVERVIEW



A mechanism for scheduling threads or processes. Scheduling can be as simple as running the next thred, or it can use relatively complex rules to pick a running process.

A method for simultaneous CPU execution and IO handling. Processing is going on even as IO (such as disk) is occurring in preparation for future CPU work.

Off Line Processing; not only are IO and CPU happening concurrently, but some off-board intelligent processing is occurring with the IO.
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An Overview of Advances of Pattern Recognition Systems in Computer Vision


First of all, let's give a tentative answer to the following question: what is pattern
recognition (PR)? Among all the possible existing answers, that which we consider being
the best adapted to the situation and to the concern of this chapter is: pattern recognition is
the scientific discipline of machine learning (or artificial intelligence) that aims at classifying
data (patterns) into a number of categories ....etc

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Definition
Real-time systems play a considerable role in our society, and they cover a spectrum from the very simple to the very complex. Examples of current real-time systems include the control of domestic appliances like washing machines and televisions, the control of automobile engines, telecommunication switching systems, military command and control systems, industrial process control, flight control systems, and space shuttle and aircraft avionics.

All of these involve gathering data from the environment, processing of gathered data ....etc

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To get full information or details of file systems in operating systems please have a look on the pages

http://seminarsprojects.net/Thread-zfs-file-system

http://seminarsprojects.net/Thread-operating-systems

if you again feel trouble on file systems in operating systems please reply in that page and ask specific fields in file systems in operating systems ....etc

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