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•Nowadays, it is easy to keep a guard outside the house for home security. But we cannot always rely on guards. In some cases, people will lock the house for long days . Criminals can use this kind of facility, which will create problems even to the house owner.• This project is designed for inner home surveillance. For continuous surveillance, recharging has been done with the robot by rechargeable batteries. This robotic section runs with LPC2148 with CMOS camera with a person detection sensor. Communications between robot and monitoring unit are accomplished through IEEE 802.15.4.

An embedded system is some combination of computer hardware and software, with either fixed or programmable capabilities, that is specifically designed for a particular kind of application device.

Embedded systems do a very specific task, they cannot be programmed to do different things.

Consumer appliancesOffice AutomationsIndustrial automationMedical electronicsComputer NetworkingTelecommunicationsWireless technologiesSecurity

The ARM is a 32-bit reduced instruction set computer (RISC) instruction set architecture (ISA) developed by ARM Holdings.

It was known as the Advanced RISC Machine.

Companies that are currently or formerly ARM licensees include

Alcatel, Apple Inc., Atmel, Broadcom, Cirrus Logic, Digital Equipment Corporation, Freescale, Intel (through DEC), LG, Marvell Technology Group, NEC, NVIDIA, NXP (previously Philips), Oki, Qualcomm, Samsung, Sharp, ST Microelectronics, Symbios Logic, Texas Instruments, VLSI Technology, Yamaha and ZiiLABS

(ARM7-TDMI-S)

Founded in November 1990 Spun out of Acorn Computers

Designs the ARM range of RISC processor cores Licenses ARM core designs to semiconductor partners who fabricate and

sell to their customers. ARM does not fabricate silicon itself

Also develop technologies to assist with the design-in of the ARM architecture

Software tools, boards, debug hardware, application software, bus architectures, peripherals etc

• Advanced RISC Machine (ARM). • Previously it was called Acorn RISC Machine named after the company which designed the processor. • Due to limited resources and staff at Acorn Computers Ltd., a RISC ISA was chosen in place of CISC to design the successor for their 16-bit microprocessor.• The first ARM processor was used as a coprocessor for BBC Microcomputers PC as an accelerator. • Later ARM entered a partnership with Apple Computer and VLSI Technology and became the ARM Ltd. and became Advanced RISC Machine instead of Acorn RISC Machine.

• Optimize the price/performance ratio rather than to compete for performance with the contemporary microprocessors.

•This is the reason why a RISC Architecture is chosen. It takes lesser silicon with performance comparable to most general-purpose microprocessors. Hence, a lot of application specific cores can be integrated with the ARM core.

• The second objective is to minimize the design time.• For this the ARM has designed a custom standard cell library. A software called QuickDesign is used to design application specific processors from these macro cells. •This custom designing feature is due to high modular nature of the ARM architecture. For an ARM processor, only an integer pipeline is mandatory. Rest of the cells like memory management unit , floating point pipeline, caches, etc. are optional. This gives a lot of flexibility to design application specific processors in a small area.

• The third objective is energy efficiency. This largely owes to the small area. The ARM employs other energy reduction techniques specific to the applications.

• Load-store RISC Architecture.• 32-bit instruction word with 32-bit operands.• The instructions have regular three operand format.• Most of the ARM processors use different instruction and data caches.• The processors are based on a common 3-stage pipeline architecture consisting of fetch, decode and execution stages.

A liquid crystal display (LCD) is a thin, flat panel used for electronically displaying information such as text, images, and moving pictures.

Its uses include monitors for computers, televisions, instrument panels, and other devices ranging from aircraft cockpit displays, to every-day consumer devices such as gaming devices, clocks, watches, calculators, and telephones.

Among its major features are its lightweight construction, its portability, and its ability to be produced in much larger screen sizes than are practical for the construction of cathode ray tube (CRT) display technology.

RF is a specification for a suite of high level communication protocols using small, low-power digital radios based on the IEEE 802.15.4-2003 standard for wireless personal area networks (WPANs), such as wireless headphones connecting with cell phones via short-range radio.

The technology defined by the RF Specifications is intended to be simpler and less expensive than other WPANs, such as Bluetooth.

RF is targeted at radio- frequency (RF) applications that require a low data rate, long battery life, and secure networking. The RF Alliance is a group of companies that maintain and publish the RF standard.

600mA OUTPUT CURRENT CAPABILITY PER CHANNEL1.2A PEAK OUTPUT CURRENT (non repetitive) PER

CHANNELENABLE FACILITYOVERTEMPERATURE PROTECTIONLOGICAL "0" INPUT VOLTAGE UP TO 1.5 V(HIGH NOISE IMMUNITY)INTERNAL CLAMP DIODES

A DC motor is an electric motor that runs on DC electricity. It works on the principle of electromagnetism. A current carrying conductor when placed in an external magnetic field will experience a force proportional to the current in the conductor.

They are various methods used to control the speed of a DC motor. Some of them are:

1. Armature control method

2. Flux control method

3. Ward Leonard system

Ultrasonic transducers are transducers that convert ultrasound waves to electrical signals or vice versa. Those that both transmit and receive may also be called ultrasound transceivers; many ultrasound sensors besides being sensors are indeed transceivers because they can both sense and transmit. These devices work on a principle similar to that of transducers used in radar and sonar systems, which evaluate attributes of a target by interpreting the echoes from radio or sound waves, respectively. Active ultrasonic sensors generate high frequency sound waves and evaluate the echo which is received back by the sensor, measuring the time interval between sending the signal and receiving the echo to determine the distance to an object. Passive ultrasonic sensors are basically microphones that detect ultrasonic noise that is present under certain conditions, convert it to an electrical signal, and report it to a computer.

More advanced security systems include passive infrared (PIR) motion detectors. The "motion sensing" feature on most lights (and security systems) is a passive system that detects infrared energy. These sensors are therefore known as PIR (passive infrared) detectors or pyro electric sensors. These sensors "see" the infrared energy emitted by an intruder's body heat. When an intruder walks into the field of view of the detector, the sensor detects a sharp increase in infrared energy.

Keil software

Keil compiler is a software used where the machine language code is written and compiled. After compilation, the machine source code is converted into hex code which is to be dumped into the microcontroller for further processing. Keil compiler also supports C language code.

Automatic charging for robot

Improved safety and security

Easy to transfer images

Less energy usage

Industrial Application

Home Applications

Robotic Applications

Military applications

The project “Automatic Docking System for Home Surveillance Robots” been successfully designed and tested. It has been developed by integrating features of all the hardware components used. Presence of every module has been reasoned out and placed carefully thus contributing to the best working of the unit.

Secondly, using highly advanced IC’s and with the help of growing technology the project has been successfully implemented.

For the further development of this project we can add GSM and GPS to the existing project so that whenever the intruder enters automatic GPS will take location and GSM will sent the SMS to near by police station to take immediate action.