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

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If the accuracy of the work done by any gadget is precision, then the cost of manufacturing the gadget becomes directly proportional to it. This in turn decreases the end users affordability or adoptability to it.

In the coming decades, the quality of work will play the role in all the fields. Too considering the Medical field, the accuracy, time, precision, adoptability, user-friendly are all to be considered.

This parameters plays the most important to develop a gadget in Medical field. So these parameters measure the cost of the gadget de ....etc

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Evolution of EMBEDDED SYSTEM



Abstract
If the accuracy of the work done by any gadget is
precision, then the cost of manufacturing the gadget
becomes directly proportional to it. This in turn decreases the
end users affordability or adoptability to it.


Innovation
A long breath-taking research in microelectronics,
processor and the memory with the boon of low cost, have
developed the embedded systems with number of
applications.

Trends
A plethora ....etc

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ABSTRACT

Over the past four decades the computer industry has experienced four generations of development. The first generation used Vacuum Tubes (1940 – 1950s) to discrete diodes to transistors (1950 – 1960s), to small and medium scale integrated circuits (1960 – 1970s) and to very large scale integrated devices (1970s and beyond). Increases in device speed and reliability and reduction in hardware cost and physical size have greatly enhanced computer performance ....etc

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The Evolution of TDMA to 3G & 4G Wireless Systems

AT&T Wireless Services
TDMA
European GSM over 250 million
North American TDMA ~ 50 million
Japanese PDC ~ 50 million
CDMA
North American CDMA ~ 60 million (including S. Korea)
TDMA parameters
30 KHz channels (like analog & CDPD)
20 msec speech frames
24.3 kbaud symbol rate
3 time-slots/users
7.4 kbps ACELP speech coding
1/2-rate channel coding on importan ....etc

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Hi am abhi singh ,can I get the details of driving optical network evolution seminar ppt and report pdf. It would be very thanks full if upload  it here ....etc

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i want more information about this topic ....etc

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The embedded system is a combination of computer hardware, software and, perhaps, additional mechanical parts, designed to perform a specific function. A good example is an automatic washing machine or a microwave oven. Embedded systems need only the basic functionalities of an operating system in real-time environment-a scaled down version of an RTOS. They demand extremely high reliability plus the ability to customize the OS to match an applicationâ„¢s unique requirements. However, commercial RTOSes, while designed to satisfy the reliabil ....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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