circuits designed to generate (in the case of both the key and the lock) and to detect (in the case of the lock only) a signal in which at least one parameter varies as a function of the established combination‚ the lock incorporating an electrical power supply for the electronic circuits of both units. ACKNOWLEDGEMENT My sincere thanks to Mr. M.Suresh (Faculty advisor ‚EHC‚ NIST) for giving his valuable time and help during preparation of my preliminary seminar
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Accident Prevention System for Automobiles ACCIDENT PREVENTION SYSTEM FOR AUTOMOBILES Dept Electronics and Communication Engineering Page 1 Accident Prevention System for Automobiles CHAPTER 1 INTRODUCTION Dept Electronics and Communication Engineering Page 2 Accident Prevention System for Automobiles INTRODUCTION The population of our country has been increasing rapidly which indirectly increases the vehicle density and leads to many road accidents. The aim of the
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any degree. Name of Project Guide Mr. Surjit Gautum Head of the Domain Table of Content • Acknowledgements. • Introduction to the Project. • Circuit Diagram. • Working of Security System • Power Supply Description ▪ Transformer ▪ Bridge Rectifier ▪ Shunt Capacitor ▪ Voltage Regulater • GSM • About The Sensors ▪ Gas Sensor ▪ Infraed Sensor ▪ Fire Sensor • Component Discription ▪ A .
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IMPLEMENTATION OF TELECOM SYSTEM & TRANSMISSION SYSTEMS i) BTS(BASE TRANSEIVER SYATEM) ii) ALARM SYSTEM iii) BSC(BASE STATION CONTROLLER) iv) ANTENNA v) VARIOUS CARDS 2. POWER SYSTEM INSTALLATION i) DG(DIESEL GENERATOR) ii) MCB iii) PIU(POWER INTERPHASE UNIT) iv) SMPS v) RECTIFIERS vi) BATTERY BANK(24VOLT‚48VOLT) vii) POWER CARDS 3. OPERATION & MAINTAINANCE FOR TELECOM & INFRA SYSTEMS 4. RF VERTICALS i) RF SURVEY ii) RF PLANNING iii) NETWORK DESIGN iv) RF-DRIVE TEST v) RF-OPTIMIZATION
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Chapter Three System Design and Methodology 3.1 Design Outline of the System The process of circuit design begins with the specification‚ which states the functionality that the finished design must provide‚ but does not indicate how it is to be achieved. The initial specification for this project is a dc voltmeter with an input voltage range of 0 to 300 volts. Although there are many parameters that a design specification should contain‚ such as size‚ weight‚ moisture resistance‚ temperature
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CHAPTER 1 INTRODUCTION Now-a-days every institution needs automation. As a part of college automation‚ we have decided to do a project “voice interactive system for college automation”. Our project allows the user to know the student’s attendance and marks quickly through the telephone line without the intention of the college authority. In the hardware side embedded system has been used. The microcontroller controls the whole
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Mechanical Assembly 15 2.3 Power Supply Module 18 Chapter 3. Software Design 19 3.1 Overview of software used 20 3.2 Algorithm 21 3.3 Flow Chart 22 3.4 Pseudo Code 23 Chapter 4. PCB Design 25 4.1 PCB designing steps 25 Chapter 5.Results and Conclusion 26 5.1 Interrupt module testing results 27 5.2 DC motor RPM measurement 28 5.3 Power Supply Testing 28 5.4 Displaying
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transmission/reception • Duplex filters • Dynamic power regulation • Encryption/ciphering • EDGE (hardware prepared) • External alarms • Frequency hopping • Positioning with GPS/LMU • Radio configurations supported on 800‚ 900‚ 1800 and 1900 MHz • Receiver diversity • Transmission Interface; for following interfaces T1 1.5 Mbit/s‚ 100 Ω‚ with internal synchronization E1 2 Mbit/s‚ 75 Ω‚ with PCM synchronization E1 2 Mbit/s‚ 120 Ω‚ with PCM synchronization • Wide range power input 120 - 250 V AC Variations: There
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become an important feature for commercial products and a popular research topic within the last ten years. There are now more mobile phone subscriptions than wired-line subscriptions. Lately‚ one area of commercial interest has been low-cost‚ low-power‚ and short-distance wireless communication used for \personal wireless networks." Technology advancements are providing smaller and more cost effective devices for integrating computational processing‚ wireless communication‚ and a host of other functionalities
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Construction Digital Voltmeter Raj K. Gorkhali A voltmeter finds its importance wherever voltage is to be measured. Here we present an easyto-build and accurate digital voltmeter that has been designed as a panel meter and can be used in DC power supplies panels or where it is necessary to have an accurate indication of the voltage. Circuit description The circuit uses an analogue-todigital converter ICL7107 made by INTERSIL. Fig. 1 shows the pin detail of IC L7107. This IC incorporates in a 40-pin
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