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automatic railway gate control circuit diagram


Posted by:
Created at: Sunday 28th of July 2013 01:04:38 PM
Last Edited Or Replied at :Monday 29th of July 2013 12:31:10 AM
automatic railway gate control ,
i need to ckt diagram of ..................[:=> Show Contents <=:]



Automatic Railway Gate Control and Track Switching full report


Posted by: project topics
Created at: Friday 23rd of April 2010 12:43:59 PM
Last Edited Or Replied at :Tuesday 23rd of April 2013 07:24:07 AM
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is allowed to travel on the same track and the local train has to switch on to the other track. Two sensors are placed at the either sides of the junction where the track switches. If thereâ„¢s a train approaching from the other side, then another sensor placed along that direction gets activated and will send an interrupt to the controller. The interrupt service routine switches the track. Indicator lights have been provided to avoid collisions. Here the switching operation is performed using a stepper motor. Assuming that within a certain delay, the train has passed the track is switched..................[:=> Show Contents <=:]



Automatic Railway Gate Controller using FM Communications full report


Posted by: project topics
Created at: Saturday 03rd of April 2010 01:51:27 PM
Last Edited Or Replied at :Tuesday 29th of March 2011 01:16:15 PM
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susceptible to outside interference and noise (e.g., thunderstorms, nearby machinery) than is A.M. Such noise generally affects the amplitude of a radio wave but not its frequency, so an F.M signal remains virtually unchanged. F.M is also better able to transmit sounds in stereo than A.M. Commercial F.M broadcasting stations transmit their signals in the frequency range of 88 megahertz (MHz) The project is designed using F.M COMMUNICATION to avoid railway accidents happening at unattended railway gates, if implemented in spirit. This project utilizes two powerful IR transmitters and two receiv..................[:=> Show Contents <=:]



MICROCONTROLLER BASED AUTOMATIC RAILWAY GATE CONTROL full report


Posted by: project topics
Created at: Saturday 03rd of April 2010 01:43:46 PM
Last Edited Or Replied at :Wednesday 09th of January 2013 04:22:43 AM
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ance. SG1 and SG4 are placed at 2Km on either side of the gate whereas SG2 and SG3 are placed at 180m from the gate. The train may be approaching the gate in either direction. So all four signals are made RED initially to indicate that gate is open and vehicles are passing through the gate.
The road user signals are made GREEN so that they can freely move through the gate buzzer is made 'OFF' since there is no approach of train and road users need not be warned.
ii) Train Arrival Detection:
IR
transmitter
IR
receiver
Comparator
Transistor switch
Detection of a train approaching the ga..................[:=> Show Contents <=:]



ivrs system for industrial control


Posted by: insiyah4
Created at: Monday 08th of March 2010 08:45:57 AM
Last Edited Or Replied at :Saturday 28th of August 2010 03:23:36 PM
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r makind d project asap
v ve a mini projects this year thank u
i want d list on d following topics
1. ivrs system for industrial control
2.6 channel petrochemical fire monitoring and control system
3.automatic intelligent toll tax
4.photic phone
5.intelligent spy robot..................[:=> Show Contents <=:]



Automatic Railway Gate Controller Using Stepper Motor full report


Posted by: project report tiger
Created at: Tuesday 02nd of February 2010 02:06:03 AM
Last Edited Or Replied at :Thursday 08th of March 2012 09:55:10 PM
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entional operations.
24
CHAPTER 6
LIGHT DEPENDENT RESISTOR

25
LIGHT DEPENDENT RESISTOR
6.1 Description:
This practical is about using a light dependent resistor (LDR) as a sensor. The LDR must be part of a voltage divider circuit in order to give an output voltage, Vout , which changes with illumination.
A light dependent resistor is a resistor whose resistance decreases with increasing incident light intensity. It can also be referenced as a photo conductor. An LDR is made of a high resistance semiconductor. If light falling on the device is of high enough frequency, photons a..................[:=> Show Contents <=:]



avoid railway accidents at unattended railway gates using 8051 microcontroller


Posted by: computer science technology
Created at: Friday 22nd of January 2010 02:43:36 PM
Last Edited Or Replied at :Wednesday 18th of January 2012 10:16:00 PM
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„¢s a train approaching from the other side, then another sensor placed along that direction gets activated and will send an interrupt to the controller. The interrupt service routine switches the track. Indicator lights have been provided to avoid collisions. Here the switching operation is performed using a stepper motor. Assuming that within a certain delay, the train has passed the track is switched back to its original position, allowing the first train to pass without any interruption. This concept of track switching can be applied at 1km distance from the stations.
The project is s..................[:=> Show Contents <=:]



unmanned railway gate


Posted by: Ahamed
Created at: Monday 01st of March 2010 08:19:57 AM
Last Edited Or Replied at :Monday 01st of March 2010 11:26:37 AM
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plz help to find ppts on the topic unmanned railwa..................[:=> Show Contents <=:]



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