08-16-2017, 10:53 PM
Train Tracking and monitoring
Innovative Embedded Systems has developed surveillance systems for trains that can monitor the movement of every train on Indian rails, round the clock. Indian railwats has a network of 63,332 kilometres of track. Averting train accidents in India is a Herculean task as the Indian Railways runs a very large operation. Innovative Embedded Systems Private Limited (IESPL) has developed a train-tracking system that enables an effective way of monitoring the location, speed and direction of movement of every train within a certain geographical boundary. It involves the implementation of GPS- (global positioning system), GSM- (global system for mobile communication) and radio frequency- (RF) based instrumentation on each train, along with communication links to centralised locations. As a result of this, real-time train running information is made available to both travellers and authorities.
Keeping track!
The train tracking system is an embedded electronic device installed on a train to track its every movement with data related to its position and speed relayed to the server. The micro-controller with a GPS receiver, GSM modem, 2.4 GHz radio frequency transceiver, flash memory, unique fixed and removable identification, and LEDs, which make up the embedded system . The central computer archives and displays the received data in a variety of ways, which include plotting points on a map and statistical analysis to determine the optimisation potential.
How it all works
It involves interfacing the GSM engine with the micro-controller for various AT (attention) commands and to transmit information to remote servers through SMS or GPRS. The GPRS enables communication over a TCP port for immediate information delivery to the server and A 2.4 GHz ZigBee wireless is used in the mining VTS (vehicle tracking system) to transfer data collected inside the unit to data stations and then to a remote server through VSAT (very small aperture terminal).
http://magazine.itmagzindex.php/componen...?task=view
refer this pdf too:
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