TECHNICAL FIELD

[001] The present subject matter described herein, in general, relates to rolling stock safety
system, and more particularly an early warning generating system.

BACKGROUND

[002] Generally, derailment in rail traffic operations is a major concern. Typically, derailment
may be understood as an unwanted movement of rolling stock (also known as loco, wagon, and
herein after referred to as rolling stock), where wheels of rolling stock move out of rail lines.
Derailment impacts badly on internal rail-logistics operation as well as results into property
damage. Sometimes, derailed rolling stock collide with the rolling stock on the next rail and has
the potential of damaging human life as well.
[003] Typically, out of all the cases of derailment, most occur due to human errors. Further
analysis of derailments shows that most human failure cases occur due to way formation as a
result of point burst. Further, most of the point bursting cases happen during shunting operations
- when track point is mistakenly not set properly at crossing. Shunting may be understood as
the process of backward/forward movement of rolling stock. Shunting is done after proper route
setting, and so before movement of rolling stock, operator has to ensure that proper route is set
for him. But, knowingly or unknowingly, if an operator moves rolling stock in the direction in
which route was not set for him and rolling stock crosses point of switching, then the switch
rail gets dismantled, this dismantling is called "Bursting of Point" or point burst. After point
burst, a gap is formed in between switch rail & main rail due to bending of the tie-rods. In this
condition of track point, rolling slock can cross the point easily in movement direction but if
any reverse movement happens through same point without maintenance/rectification then the
wheels of different bogies can go to different tracks and derailment is bound to happen. So, in
order to reduce derailments due to human mistake, point burst has to be eliminated.
[004] In a steel manufacturing industry, rail transportation involves transportation of liquid
hot metal from blast furnace to steel making shops. Transportation of hot metal is being done
through torpedo ladle cars (type of rolling stock) via rail tracks. In conventional system, such
as passenger railways, all points (merging/shunting) are operated through cabin. When point

burst cases arises, it is noticed in the control cabin and the cabin operator stops movement. But
in case of industry, such as steel manufacturing, where there is no cabin operation and mostly
shunting operations are done manually, and in most of the cases point burst cases are missed
due to human error resulting in to derailment.
SUMMARY
[005] Before the present an early warning generating system, are described, it is to be
understood that this application is not limited to the particular systems, and methodologies
described, as there can be multiple possible embodiments which are not expressly illustrated in
the present disclosures. It is also to be understood that the terminology used in the description
is for the purpose of describing the particular implementations or versions or embodiments
only, and is not intended to limit the scope of the present application. This summary is provided
to introduce aspects related to an early warning generating system. This summary is not
intended to identify essential features of the claimed subject matter nor is it intended for use in
determining or limiting the scope of the claimed subject matter.
[006] In one implementation, a system an early warning generating system is disclosed. In
one aspect, the system comprises a first sensor system coupled to a first rail track. In one
example, during operation the first sensor system is activated if a rolling stock is traveling on
the first rail track. The system further comprises a second sensor system coupled to a second
rail track. In one example, during operation the second sensor system is activated if the rolling
slock is traveling on the second rail track. The system furthermore comprises a rail switch
coupled to the first sensor system and the second sensor system. The rail switch comprises a
track selector system configured to select between the first rail track or the second rail track and
a hooter. In one more example, during operation the hooter is activated to provide early warning
if one of a) the first sensor system is activated and the second rail track is selected or b) the
second sensor system is activated and the first rail track is selected or c) a point burst occurs.
BRIEF DESCRIPTION OF THE DRAWINGS
[007] The foregoing detailed description of embodiments is better understood when read in
conjunction with the appended drawings. For the purpose of illustrating of the present subject

matter, an example of construction of the present subject matter is provided as figures; however,
the invention is not limited to the specific system disclosed in the document and the figures.
[008] The present subject matter is described detail with reference to the accompanying
figures. In the figures, the left-most digit(s) of a reference number identifies the figure in which
the reference number first appears. The same numbers are used throughout the drawings to refer
various features of the present subject matter.
[009] Figure 1 illustrates a network implementation of an early warning generating system, in
accordance with an embodiment of the present subject matter.
[010] Figure 2 illustrates an early warning generating system, in accordance with an
embodiment of the present subject matter.
DETAILED DESCRIPTION
[011] Some embodiments of this disclosure, illustrating all its features, will now be discussed
in detail. The words "comprising," "having," "containing," and "including," and other forms
thereof, are intended to be equivalent in meaning and be open ended in that an item or items
following any one of these words is not meant to be an exhaustive listing of such item or items,
or meant to be limited to only the listed item or items. It must also be noted that as used herein
and in the appended claims, the singular forms "a," "an," and "the" include plural references
unless the context clearly dictates otherwise. Although any an early warning generating system,
similar or equivalent to those described herein can be used in the practice or testing of
embodiments of the present disclosure, the exemplary, an early warning generating system are
now described. The disclosed embodiments for an early warning generating system are merely
examples of the disclosure, which may be embodied in various forms.
[012] Various modifications to the embodiment will be readily apparent to those skilled in the
art and the generic principles herein may be applied to other embodiments for an early warning
generating system. However, one of ordinary skill in the art will readily recognize that the
present disclosure for an early warning generating system is not intended to be limited to the
embodiments described, but is to be accorded the widest scope consistent with the principles
and features described herein.

[013] As described above, derailment of rolling stock in rail operation is a major concern
especially in the steel manufacturing, where rail transportation involves transportation of liquid
hot metal from blast furnace to steel making shops. In such cases a system is required for
warning in point burst cases or point not set properly cases or wrong rail switch selection cases..
[014] In one embodiment of the present subject matter, an early warning generating system is
disclosed. In one aspect, the system comprises a first sensor system coupled to a first rail track.
In one example, during operation the first sensor system is activated if a rolling stock is traveling
on the first rail track. The system further comprises a second sensor system coupled to a second
rail track. In one example, during operation the second sensor system is activated if the rolling
stock is traveling on the second rail track.
[015] The system furthermore comprises a rail switch coupled to the first sensor system and
the second sensor system. Generally, the first rail track and the second rail track merge in to
each other to form a single track. In other example, more than two rail tracks may also merge
to form a single merged track. During operation, the rolling stocks traveling on one of the rail
track may be directed to the merged track using the rail switch. In the present embodiment, the
rail switch comprises a track selector system configured to select between the first rail track or
the second rail track and a hooter. In one more example, during operation the hooter is activated
to provide early warning if one of a) the first sensor system is activated and the second rail track
is selected or b) the second sensor system is activated and the first rail track is selected or c) a
point burst occurs.
[016] Exemplary embodiments for an early warning generating system discussed above may
provide certain advantages. In one example, an early warning generating system may provide
warning if a Point set by crew but there is gap, if Point set but not locked, if rolling
stock/Torpedo is approaching near point without proper route setting and if Point burst occurs.
In one example, a point may be understood as the point of switching from a rail track to another
rail track or a rail track formed due to merging of a plurality of rail tracks. In the subsequent
description, embodiments of the present subject matter is explained with reference to the
figures.

[017] Referring to Figure 1, a network implementation not shown of a system 102 for an early
warning generating system, in accordance with an embodiment of the present subject matter
may be described. Referring to Figure 2, the system 102 is illustrated in accordance with an
embodiment of the present subject matter.
[018] In one embodiment, the early warning generating system for avoiding track derailment
comprises a first sensor system 102-1 coupled to a first rail track 106, a second sensor system
102-2 coupled to a second rail track 104 and a rail switch 108 coupled to the first sensor system
102-1 and the second sensor system 102-2. Further, as shown in figure 1, the first rail track 106
and the second rail track 104 merge to form a single rail track, and during operation a rolling
stock travelling on one of the first rail track 106 and the second rail track 104 is transferred on
to the merged rail track using the rail switch 108, thereby providing direction to the rolling
stock.
[019] Further in the embodiment, the first sensor system 102-1 comprises a normally open
first relay 210 and a first proximity switch 214, and the second sensor system 102-2 comprises
a normally open second relay 212 and a second proximity switch 216. The rail switch 108
comprises a track selector system and a hooter 206 The track selector system further comprises
a normally open first track relay 202 and a first track switch 214 associated with the first track
106 and a normally open second track relay 204 and a second track switch 216 associated with
the second track 104.
[020] In the embodiment, during operation the first sensor system 102-1 is activated if a
rolling stock is traveling on the first rail track 106 and the second sensor system 102-2 is
activated if the rolling stock is traveling on the second rail track 104. In one example, the
activation of the first sensor system 102-1 comprises energising the first proximity switch 214
and closing the normally open first relay 210 based on the energising. In one more example,
the activation of the second sensor system 102-2 comprises energising the second proximity
switch 216 and closing the normally open second relay 212 based on the energising.
[021] Further during operation the track selector system may be utilized to select between the
first rail track 106 and the second rail track 104. If first rail track 106 is selected the normally
open first track relay 202 is closed based on energization of the first track switch 214 and if the

second rail track 104 is selected the normally open second track relay 204 is closed based on
energization of the second track switch 216.
[022] Furthermore during operation, the hooter 206 is activated to provided early warning if
one of the first sensor system 102-1 is activated and the second rail track 104 is selected or the
second sensor system 102-2 is activated and the first rail track 106 is selected or if a point burst
occurs thereby by providing a warning.
[023] In one other example of the present subject matter, construe a rolling stock on the first
track 106. In the condition, the first sensor system 102-1 is activated. In one other example the
first sensor system 102-1 may be activated when the rolling stock reaches a predefined distance
from the first sensor system 102-1. If the user selects the wrong track i.e. second track 104 using
the track selector or if the users forgets to select the first track 104, to change from the previous
configuration of second track 104, then the circuit is completed and the hooter 206 is activated.
In order to deactivate the hooter 206 the user may have to execute appropriate selection.
[024] In one more example, construing the rolling stock on the second track 104. In the
condition, the second sensor system 102-1 is activated. In one other example the second sensor
system 102-2 may be activated when the rolling stock reaches a predefined distance from the
second sensor system 102-2. Now if the user does not does not select second track 104 or forgets
to select second track 104 the hooter 206 is activated. In order to deactivate the hooter 206 the
user may have to execute appropriate selection.
[025] In one more example, construing that a point burst has occurred, for example due to the
rail switch getting dismantled, as described in the preceding section, the hooter 206 is activated
In order to deactivate the hooter 206 the user may have to execute appropriate selection. In the
above example, in one embodiment, the hooter 206 may be activated after a predefined time,
[026] Although implementations for an early warning generating system have been described
in language specific to structural features and/or methods, it is to be understood that the
appended claims are not necessarily limited to the specific features or methods described.
Rather, the specific features and methods are disclosed as examples of implementations for an
early warning generating system.

WE CLAIM:

1. An early warning generating system for avoiding rolling stock derailment, wherein the
system comprising:
a first sensor system (102-1) coupled to a first rail track (106), wherein during
operation the first sensor system (102-1) is activated if a rolling stock is traveling on the
first rail track (106);
a second sensor system (102-2) coupled to a second rail track, wherein during
operation the second sensor system (102-2) is activated if the rolling stock is traveling on
the second rail track (104); and
a rail switch (108) coupled to the first sensor system (102-1) and the second sensor
system (102-2), wherein the rail switch (108) comprises a track selector system
configured to select between the first rail track (106) or the second rail track (104) and a
hooter (206); and
wherein during operation the hooter (206) is activated to provided early
warning if one of a) the first sensor system (102-1) is activated and the second rail
track (104) is selected or b) the second sensor system (102-2) is activated and the
first rail track (106) is selected, or c) a point burst occurs.
2. The early warning generating system as claimed in claim 1, wherein the first sensor
system (102-1) comprises a normally open first relay (210) and a first proximity switch
(214).
3. The early warning generating system as claimed in claim 1, wherein the second sensor
system (102-2) comprises a normally open second relay (212) and a second proximity
switch (216).
4. The early warning generating system as claimed in claim 1, wherein the track selector
system comprises a normally open first track relay (202) and a first track switch (214)
associated with the first track (106) and a normally open second track relay (204) and a
second track switch (216) associated with the second track (104).
5. The early warning generating system as claimed in claim 2, wherein the activation of the
first sensor system (102-1) comprises energising the first proximity switch (214) if the
rolling stock is traveling on the first rail track (106) and closing the normally open first
relay (210) based on the energising.

6. The early warning generating system as claimed in claim 3, wherein the activation of the
second sensor system (102-2) comprises energising the second proximity switch (216) if
the rolling stock is traveling on the second rail track (104) and closing the normally open
second relay (212) based on the energising.
The early warning generating system as claimed in claim 4, wherein selection by the track
selector system comprises one of a) the normally open first track relay (202) is closed
based on energization of the first track switch (214) b) the normally open second track
relay (204) is closed based on energization of the second track switch (216).
8. The early warning generating system as claimed in claim 1, the first sensor system (102-
1) is activated when the rolling stock reaches a predefined distance from the first sensor
system (102-1).
9. The early warning generating system as claimed in claim 1, the second sensor system
(102-2) is activated when the rolling stock reaches a predefined distance from the second
sensor system (102-2).