18-07-2011, 10:31 AM
[attachment=14538]
CHAPTER I
INTRODUCTION
1.1 Introduction
Embedded systems are finding increasing application not only in domestic
applications but also in areas of industrial automation, automobiles, power
electronics, defence and space equipments. 8051s are the modern building blocks for
many embedded systems.
In spite of revolutionary advances in the field of electronics, 8051s play a
major role in the design of embedded control systems during the past two decades.
They are available in 8-bit versions and are manufactured by a number of leading
companies like Intel, Motorola, Philips, Hitachi, Atmel, Microchip, Dallas, Siemens
etc., . They are available in the market with various configurations for different
applications.
The project is mainly based on the Robotic technology. Mainly Robotic
technology is used for more advanced applications. In this project, PIR sensor is used
internally to Excellent performance infrared sensor for use in alarm burglar systems,
visitor presence monitoring, light switches and robots. These compact, easy to use
sensors can be easily implemented in your design .
1.2 BLOCK DIAGRAM
CHAPTER II
INTRODUCTION TO EMBEDDED SYSTEM
2.1 Embedded system
An embedded system is a special-purpose computer system designed to
perform one or a few dedicated functions, sometimes with real-time computing
constraints. It is usually embedded as part of a complete device including hardware
and mechanical parts. In contrast, a general-purpose computer, such as a personal
computer, can do many different tasks depending on programming. Embedded
systems have become very important today as they control many of the common
devices we use.
Since the embedded system is dedicated to specific tasks, design engineers can
optimize it, reducing the size and cost of the product, or increasing the reliability and
performance. Some embedded systems are mass-produced, benefiting from
economies of scale.
Physically, embedded systems range from portable devices such as digital
watches and MP3 players, to large stationary installations like traffic lights, factory
controllers, or the systems controlling nuclear power plants. Complexity varies from
low, with a single microcontroller chip, to very high with multiple units, peripherals
and networks mounted inside a large chassis or enclosure.
In general, "embedded system" is not an exactly defined term, as many
systems have some element of programmability. For example, Handheld computers
share some elements with embedded systems — such as the operating systems and
microprocessors which power them — but are not truly embedded systems, because
they allow different applications to be loaded and peripherals to be connected.
An embedded system is some combination of computer hardware and software,
either fixed in capability or programmable, that is specifically designed for a
particular kind of application device. Industrial machines, automobiles, medical
equipment, cameras, household appliances, airplanes, vending machines, and toys (as well as the more obvious cellular phone and PDA) are among the myriad possible
hosts of an embedded system. Embedded systems that are programmable are provided
with a programming interface, and embedded systems programming is a specialized
occupation.
CHAPTER I
INTRODUCTION
1.1 Introduction
Embedded systems are finding increasing application not only in domestic
applications but also in areas of industrial automation, automobiles, power
electronics, defence and space equipments. 8051s are the modern building blocks for
many embedded systems.
In spite of revolutionary advances in the field of electronics, 8051s play a
major role in the design of embedded control systems during the past two decades.
They are available in 8-bit versions and are manufactured by a number of leading
companies like Intel, Motorola, Philips, Hitachi, Atmel, Microchip, Dallas, Siemens
etc., . They are available in the market with various configurations for different
applications.
The project is mainly based on the Robotic technology. Mainly Robotic
technology is used for more advanced applications. In this project, PIR sensor is used
internally to Excellent performance infrared sensor for use in alarm burglar systems,
visitor presence monitoring, light switches and robots. These compact, easy to use
sensors can be easily implemented in your design .
1.2 BLOCK DIAGRAM
CHAPTER II
INTRODUCTION TO EMBEDDED SYSTEM
2.1 Embedded system
An embedded system is a special-purpose computer system designed to
perform one or a few dedicated functions, sometimes with real-time computing
constraints. It is usually embedded as part of a complete device including hardware
and mechanical parts. In contrast, a general-purpose computer, such as a personal
computer, can do many different tasks depending on programming. Embedded
systems have become very important today as they control many of the common
devices we use.
Since the embedded system is dedicated to specific tasks, design engineers can
optimize it, reducing the size and cost of the product, or increasing the reliability and
performance. Some embedded systems are mass-produced, benefiting from
economies of scale.
Physically, embedded systems range from portable devices such as digital
watches and MP3 players, to large stationary installations like traffic lights, factory
controllers, or the systems controlling nuclear power plants. Complexity varies from
low, with a single microcontroller chip, to very high with multiple units, peripherals
and networks mounted inside a large chassis or enclosure.
In general, "embedded system" is not an exactly defined term, as many
systems have some element of programmability. For example, Handheld computers
share some elements with embedded systems — such as the operating systems and
microprocessors which power them — but are not truly embedded systems, because
they allow different applications to be loaded and peripherals to be connected.
An embedded system is some combination of computer hardware and software,
either fixed in capability or programmable, that is specifically designed for a
particular kind of application device. Industrial machines, automobiles, medical
equipment, cameras, household appliances, airplanes, vending machines, and toys (as well as the more obvious cellular phone and PDA) are among the myriad possible
hosts of an embedded system. Embedded systems that are programmable are provided
with a programming interface, and embedded systems programming is a specialized
occupation.
