CHAPTER I INTRODUCTION This chapter outlines the background to the study‚ the statement of the problem‚ objectives and the justification of the research. . 1.1Background Public utilities need a parking infrastructure that can function efficiently and be integrated with the other urban city utilities
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stage (40dB) and 10 times (20dB) at the next stage. As for the dB (decibel)‚ refer to "Logarithm Table". Generally‚ the positive and the negative power supply are used for the operational amplifier. The circuit this time works with the single power supply of +9 V. Therefore‚ for the positive input of the operational amplifiers‚ the half of the power supply voltage is appied as the bias voltage. Then the alternating current signal can be amplified on 4.5V central voltage. When using the operational
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line of nomenclature blurs even more. Physically‚ embedded systems ranges 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. In terms of complexity embedded systems can range from very simple with a single microcontroller chip‚ to very complex with multiple units‚ peripherals and networks mounted inside a large chassis or enclosure.
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The home appliances control system with an affordable cost was thought to be built that should be mobile providing remote access to the appliances and allowing home security. Though devices connected as home and office appliances consume electrical power. These devices should be controlled as well as turn on/off if required. Most of the times it was done manually. Now it is a necessity to control devices more effectively and efficiently at
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EE3092 – Laboratory Practice V Thyristor Switch Application Instructed by: Name : K.P.A.I.Perera Index No. : 100385H Course : BSc. Engineering Group : Group 09 Date of Per : 26/06/2013 Date of Sub : 17/07/2013 OBSERVATION SHEET Name : K.P.A.I.Perera Index No. : 100385H Course : BSc. Engineering Group : Group 09 Date of Per : 26/06/2013 Date of Sub : 17/07/2013 Instructed By : a) DC switch opening and closing by means of
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INTRODUCTION For years‚ infrared LED has been merely a system for piping light around corners and into the inaccessible places to allow the hidden to be lighted. But now‚ infrared LED has evolved into a system of significantly greater importance and use. Throughout the world‚ it is now being used to transmit voice‚ television and data signals as light waves. Its advantages as compared with conventional coaxial cable or twisted wire pairs are manifold. As a result‚ millions of dollars are being spent
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Chapter 1 Introduction 1.1 Introduction: Wireless communication has announced its arrival on big stage and the world is going mobile. We want to control everything and without moving an inch. This remote control of appliances is possible through Embedded Systems. The use of “Embedded System in Communication” has given rise to many interesting applications that ensures comfort and safety to human life. The project mainly focuses on transmission of textual data through air interface by the use
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Winter the Street lights are switched ON at the same time in the evening around 6:30 pm and switched OFF at around 6:00 am. And we know that it will be more sunny in summer season with enough light up to 7.00 pm and from 5 pm. So unnecessarily the power is wasted during these times over a period of a particular season. So a idea is proposed to design a Control system with automation. The designed system will overcome all the above said problems. This project gives the best solution for electrical
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Full Duplex UART Serial Channel • Low-power Idle and Power-down Modes • Interrupt Recovery from Power-down Mode • Watchdog Timer • Dual Data Pointer • Power-off Flag • Fast Programming Time • Flexible ISP Programming (Byte and Page Mode) • Green (Pb/Halide-free) Packaging Option 1.2)MAX232 IC: MAJOR SPECIFICATIONS: Input supply voltage range‚ VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to 6V Positive output supply voltage range‚ VS+ . . . . . . . . .
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4.8 Power supply unit 13 4.9 Microcontroller 16 4. Circuit diagrams 5.10 Buffer‚ Driver switching stage 18 5.11 Buffer 20 5.12 Driver 21 5.13 Full wave regulated power supply +5v and +12v 22 5. Electronic
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