19-06-2012, 04:15 PM
A Radio Based Intelligent Railway Grade Crossing System to Avoid Collision
[attachment=24834]
Abstract
Railway grade crossing is become the major headache for the
transportation system. This paper describes an intelligent railway
crossing control system for multiple tracks that features a
controller which receives messages from incoming and outgoing
trains by sensors. These messages contain detail information
including the direction and identity of a train. Depending on
those messages the controller device decides whenever the
railroad crossing gate will close or open.
Introduction
A railway grade crossing is a point at which a railway and
a road intersect on the same level [4].In many situations
two or more tracks may cross a highway. It creates
problem for a bus or truck or other vehicles to clear both
tracks. In recent five years, more than three hundred
people are killed and another about two hundred are
injured due to railway grade crossing accidents [5].
Whether accidents are caused by the negligence of the
men, undesirable weather conditions, inadequate traffic
planning.
Working Flow Diagram
The processing unit takes decision according to its own
algorithm. The flow chart of decision making algorithm is
shown in Fig. 4 where sg_st and sg_tr mention street and
train signal status respectively. Both street signal and train
signal have two situations {g,r} where g stands for green
signal and r for red signal. Here, g_s is the gate status and
g_s {o,c} for closing the gate it is c and for opening o.
Variable x is a three dimensional array which is actually
memory of the system. On the other hand i, j, k are
incremental variable and i {1, 2, ..., m},where m is
total number of memory. The packet has two information;
train id (tr_id) and phase (d) of the train. Here, d {h,t}
it is h if the packet generate from head of the train
otherwise it is t. Variable s indicates at which sensor the
signal is acquired from. Variable g_sr {o,c} o when the
gate is really open and c when the gate is really close it is
actually a feedback status from gate.
Conclusion
An automatic railway crossing gate control system using
radio link has been proposed in this paper for reducing the
accidents. This system can be implemented both on single
and multiple tracks. The main facility of this system is that
it can be merged with the existing system. The initial cost
of the system is a little high but maintenance cost is very
low. Power consumption of the system is low. Using solar
energy for providing the power can make the system more
fruitful to the rural areas.
[attachment=24834]
Abstract
Railway grade crossing is become the major headache for the
transportation system. This paper describes an intelligent railway
crossing control system for multiple tracks that features a
controller which receives messages from incoming and outgoing
trains by sensors. These messages contain detail information
including the direction and identity of a train. Depending on
those messages the controller device decides whenever the
railroad crossing gate will close or open.
Introduction
A railway grade crossing is a point at which a railway and
a road intersect on the same level [4].In many situations
two or more tracks may cross a highway. It creates
problem for a bus or truck or other vehicles to clear both
tracks. In recent five years, more than three hundred
people are killed and another about two hundred are
injured due to railway grade crossing accidents [5].
Whether accidents are caused by the negligence of the
men, undesirable weather conditions, inadequate traffic
planning.
Working Flow Diagram
The processing unit takes decision according to its own
algorithm. The flow chart of decision making algorithm is
shown in Fig. 4 where sg_st and sg_tr mention street and
train signal status respectively. Both street signal and train
signal have two situations {g,r} where g stands for green
signal and r for red signal. Here, g_s is the gate status and
g_s {o,c} for closing the gate it is c and for opening o.
Variable x is a three dimensional array which is actually
memory of the system. On the other hand i, j, k are
incremental variable and i {1, 2, ..., m},where m is
total number of memory. The packet has two information;
train id (tr_id) and phase (d) of the train. Here, d {h,t}
it is h if the packet generate from head of the train
otherwise it is t. Variable s indicates at which sensor the
signal is acquired from. Variable g_sr {o,c} o when the
gate is really open and c when the gate is really close it is
actually a feedback status from gate.
Conclusion
An automatic railway crossing gate control system using
radio link has been proposed in this paper for reducing the
accidents. This system can be implemented both on single
and multiple tracks. The main facility of this system is that
it can be merged with the existing system. The initial cost
of the system is a little high but maintenance cost is very
low. Power consumption of the system is low. Using solar
energy for providing the power can make the system more
fruitful to the rural areas.