DESC:FIELD
The present disclosure relates to the field of electronics engineering. More particularly, the present disclosure relates to a monitoring system for rolling stocks.
DEFINITIONS
As used in the present disclosure, the following terms are generally intended to have the meaning as set forth below, except to the extent that the context in which they are used indicate otherwise.
The expression “rolling stocks” used hereinafter in this specification refers to, but is not limited to, any vehicles that move on rail roads. It usually includes both powered and unpowered vehicles, such as locomotives, railroad cars, coaches, and wagons.
The expression “rail road” used hereinafter in this specification refers to, but is not limited to, a permanent road consisting of fixed metal rails to drive rolling stocks or similar motorized vehicles on.
These definitions are in addition to those expressed in the art.
BACKGROUND
The continuous use of a rolling stock in between two preventive maintenance schedules, due to overload or improper maintenance or poor quality of components, may lead to the failure of components of the rolling stock. If the rolling stock operates with such failed components, over a period of time, the resultant damage to the rolling stock leads to fatal accidents. The degree of this danger may be more severe, if the rolling stock carries passengers or hazardous materials.
Various technologies have been developed for monitoring health parameters of the rolling stock in order to detect and determine conditions that may cause damage or derailment. Since some of the problems associated with the rolling stock can lead to a catastrophic failure, it is desirable to monitor and report unusual observations to the locomotive or to a central data handling facility as quickly as possible. In certain monitoring systems in place, the health parameters are measured either manually or by hand-held portable devices, which are highly unreliable, time consuming and labour intensive. Further, there are monitoring systems that measure health parameters of the rolling stock through sensor units attached on the body of the rolling stock. These systems require huge investment and extensive maintenance as each rolling stock needs to be handled individually.
There is, therefore a need of a rolling stock monitoring system that alleviates the above mentioned drawbacks and is suitable for conditions without affecting its monitoring efficiency.
OBJECTS
Some of the objects of the present disclosure, which at least one embodiment herein satisfies, are as follows:
It is an object of the present disclosure to ameliorate one or more problems of the state of the art or to at least provide a useful alternative.
An object of the present disclosure is to provide a wayside rolling stock monitoring system.
Another object of the present disclosure is to provide a rolling stock monitoring system that monitors axle box temperature, wheel temperature and hanging/broken parts.
Another object of the present disclosure is to provide a rolling stock monitoring system that is robust, reliable and cost effective in terms of maintenance.
Yet another object of the present disclosure is to provide a rolling stock monitoring system that has fast response time.
Other objects and advantages of the present disclosure will be more apparent from the following description, which is not intended to limit the scope of the present disclosure.
SUMMARY
The present disclosure envisages a wayside rolling stock monitoring system comprising an on-field monitoring unit and an external notification unit.
The on-field monitoring unit includes a memory, a controller, a trigger unit, a rolling stock identification unit, a hot axle detector, a hot wheel detector, at least one camera, a damage identifier, and a data logger.
The memory is configured to store a set of predetermined rules, a rolling stock identification lookup table, a first threshold temperature, a second threshold temperature and a set of pre-captured images. The controller is configured to cooperate with the memory to receive the pre-defined rules and is further configured to generate processing commands. The trigger unit includes a first pair of proximity sensors and a switching module. The first pair of proximity sensors is configured to sense the presence/absence of the rolling stock between the first pair of proximity sensors. The switching module is configured to switch on/off the on-field monitoring unit based on the sensed presence/absence of the rolling stock. The rolling stock identification unit having an axle analyzer, the rolling stock identification unit is configured to cooperate with the memory to receive the rolling stock identification lookup table, and is further configured to calculate inter-axle distance and count the number of axles present in the rolling stock to identify a rolling stock type based on the rolling stock identification lookup table. The hot axle detector having a first set of temperature sensors, the hot axle detector is configured to cooperate with the memory to receive the first threshold temperature and is further configured to sense the temperature of each of the axles present in the rolling stock to detect axles having temperature above the first threshold temperature.
The hot wheel detector having a second set of temperature sensors, the hot wheel detector is configured to cooperate with the memory to receive the second threshold temperature and is further configured to sense the temperature of each of the wheels present in the rolling stock to detect wheels having temperature above the second threshold temperature. The camera is configured to capture a plurality of images of under gear of the rolling stock. The damage identifier having a third comparator, the damage identifier is configured to cooperate with the memory and the camera to receive the set of pre-captured images and the plurality of images of under gear, and is further configured to compare the plurality of images of under gear with the set of pre-captured images to identify the damages in the under gear of the rolling stock. The data logger is configured to cooperate with the rolling stock identification unit, the hot axle detector, the hot wheel detector, the damage identifier, and is further configured to transmit the identified rolling stock, the detected axles having temperature above the first threshold temperature, the detected wheels having temperature above the second threshold temperature, and the damages in the under gear.
The external notification unit comprises a transceiver, an alert generation unit, and a display unit. The transceiver is configured to cooperate with the data logger to receive the identified rolling stock, the detected axles having temperature above the first threshold temperature, the detected wheels having temperature above the second threshold temperature, and the damages in the under gear. The alert generation unit is configured to cooperate with the transceiver and is further configured to generate an alert for the detected axles having temperature above the first threshold temperature, the detected wheels having temperature above the second threshold temperature, and the damages in the under gear of the identified rolling stock. The display unit is configured to cooperate with the alert generation unit to receive the alert and further configured to display the alert.
In an embodiment, the first pair of proximity sensors is positioned along a rail road.
In an embodiment, the external notification unit includes a report generation module configured to cooperate with the transceiver and is further configured to generate a report based on the detected axles having temperature above the first threshold temperature, the detected wheels having temperature above the second threshold temperature, and the damages in the under gear of the identified rolling stock.
In an embodiment, the first pair of proximity sensors is further configured to sense the direction of the rolling stock.
In an embodiment, the axle analyzer includes at least one proximity sensor.
In an embodiment, the on-filed unit further includes a self-check module. The self-check module is configured to check health status of the trigger unit, the rolling stock identification unit, the hot axle detector, the hot wheel detector, the least one camera, the damage identifier, and the data logger.
In an embodiment, the first set of temperature sensors and the second set of temperature sensors are high speed infrared temperature sensors.
In an embodiment, the on-field monitoring unit comprises a power unit.
In an embodiment, the first set of temperature sensors is positioned along the inner side of a railroad and the second set of temperature sensors is positioned along the outer side of the railroad.
In an embodiment, the hot axle detector includes a first comparator to compare the sensed temperature of each of the axles with the first threshold temperature, and the hot wheel detector includes a second comparator to compare the sensed temperature of each of the wheels with the second threshold temperature.
BRIEF DESCRIPTION OF ACCOMPANYING DRAWING
A wayside rolling stock monitoring system will now be described with the help of the accompanying drawing, in which:
Figure 1 illustrates a schematic block diagram of the wayside rolling stock monitoring system, in accordance with an embodiment.
Figure 2 illustrates positioning of different components of the wayside rolling stock monitoring system in accordance with another embodiment.
Figure 3 illustrates a screenshot of the wayside rolling stock monitoring system, in accordance with another embodiment.
Figure 4 illustrates a graphical representation of the wheel temperature and the axle temperature, in accordance with another embodiment.
LIST OF REFERENCE NUMERALS
10 memory
12 controller
20 trigger unit
22a, 22b first pair of proximity sensors
24 switching module
26 rolling stock identification unit
28 axle analyzer
30 hot axle detector
32 first set of temperature sensors
34 first comparator
40 hot wheel detector
42 second set of temperature sensors
44 second comparator
50 camera
52 damage identifier
54 third comparator
56 data logger
60 on-field monitoring unit
70 external notification unit
72 transceiver
74 alert generation unit
76 display unit
78 report generation module
80 self-check module
100 system
DETAILED DESCRIPTION
A wayside rolling stock monitoring system will now be described with reference to the embodiments shown in the accompanying drawing. The present disclosure envisages the wayside rolling stock monitoring system. The system, by wayside technology, measures and detects bogies or wheel sets that are not performing correctly, and communicate this information back to a central office, so that the bogies or wheel sets could be removed for service and inspection. The wayside equipment is fitted along the rail road to detect various rolling stock defects which have serious safety implications. In an embodiment, the system can also be used as a data logger for maintaining records of rolling stocks passing through the system. Figure 1 illustrates a schematic block diagram of a wayside rolling stock monitoring system (100). Figure 2 illustrates positioning of different components of the wayside rolling stock. The wayside rolling stock monitoring system (100) comprises an on-field monitoring unit (60) and an external notification unit (70).
The on-field monitoring unit (60) comprises a memory (10), a controller (12), a trigger unit (20), a rolling stock identification unit (26), a hot axle detector (30), a hot wheel detector (40), at least one camera (50), a damage identifier (52), and a data logger (56). In an embodiment, various components of the on-field monitoring unit (60) are connected to each other via wired or wireless means. In an embodiment, the on-field monitoring unit (60) monitors various parameters, such as roller bearing conditions, axle temperature, wheel temperature, roller bearing adapter displacement, hanging and broken components, brake status and performance, speed, and the like.
The memory (10) is configured to store a set of predetermined rules, a rolling stock identification lookup table, a first threshold temperature, a second threshold temperature and a set of pre-captured images. The set of predetermined rules is related to triggering, rolling stock identification, hot axle detection, hot wheel detection, damage identification etc. In an embodiment, the first threshold temperature and the second threshold temperature is provided by a user, and it is maximum acceptable value of temperature for hot wheels and hot axle. The memory (10) may include any computer-readable medium known in the art including, for example, volatile memory, such as static random access memory (SRAM) and dynamic random access memory (DRAM), and/or a non-volatile memory, such as read only memory (ROM), erasable programmable ROM, flash memories, hard disks, optical disks, and magnetic tapes. In an embodiment, the rolling stock identification lookup table includes details about various types of rolling stock and corresponding axle-count and inter-axle distance.
The controller (12) is configured to cooperate with the memory (10) to receive the predetermined set of rules and is further configured to generate processing commands. The controller (12) may be implemented as one or more microprocessors, microcomputers, digital signal processors, central processing units, state machines, logic circuitries, and/or any devices that manipulate signals based on operational instructions. Among other capabilities, the controller (12) is configured to fetch and execute the predetermined set of rules stored in the memory (10).
The trigger unit (20) is configured to trigger the on-field monitoring unit (60). The trigger unit (20) includes a first pair of proximity sensors (22a, 22b) and a switching module (24). The first pair of proximity sensors (22a, 22b) is configured to sense the presence/absence of the rolling stock between the first pair of proximity sensors (22a, 22b). The switching module (24) is configured to switch on/off the on-field monitoring unit (60) based on the sensed presence/absence of the rolling stock. In an embodiment, the first pair of proximity sensors (22a, 22b) is positioned along the rail road. In an embodiment, the first pair of proximity sensors (22a, 22b) is also configured to identify the direction of the rolling stock.
The rolling stock identification unit (26) is configured to identify the rolling stock. The rolling stock identification unit (26) includes an axle analyzer (28). The rolling stock identification unit (26) cooperates with the memory (10) to receive the rolling stock identification lookup table, and is further configured to calculate inter-axle distance and count the number of axles present in the rolling stock to identify a rolling stock type based the rolling stock identification lookup table. In an embodiment, the axle analyzer (28) includes a proximity sensor and a distance sensor. In an embodiment, the proximity sensor counts the number of axles present in the rolling stock and the distance sensor calculates the inter-axle distance. In another embodiment, the rolling stock identification unit (26) includes a camera to identify the rolling stock based on the images of train and train number.
In an embodiment, the rolling stock identification unit (26) may have speed sensors (not shown in figure) for measuring the speed of the rolling stock. Different types of rolling stock have different inter-axle distances and so with the help of the speed and count received from the axle analyzer (28), the distance between the two axles can be measured to identify the type of rolling stock, using the following formula:
The distance between the two axles of the rolling stock = instantaneous speed * time difference between the detected axles
In yet another exemplary embodiment, if the count of the axle is less than or equal to 120, then system (100) will identify the rolling stock as a passenger train (passenger train has a maximum 26 coaches and each coach has 4 axles). If the count of the axle is more than 120, then the system (100) will identify the rolling stock as a freight train. If the count of the axle is 6, then the rolling stock is identified as a locomotive.
The hot axle detector (30) is configured to detect the hot axles. The hot axle detector (30) includes a first set of temperature sensors (32). The hot axle detector (30) is configured to cooperate with the memory (10) to receive the first threshold temperature. The hot axle detector (30) is further configured to sense the temperature of each of the axles present in the rolling stock to detect axles having temperature above the first threshold temperature. In an embodiment, the hot axle detector (30) includes a first comparator (34) to compare the sensed axle temperature with the first threshold temperature. In an embodiment, the first set of temperature sensors (32) are high speed infrared temperature sensors. The first set of temperature sensors (32) is positioned along the inner side of the rail road. In an embodiment, the first set of temperature sensors (32) are mounted on resilient mount within housing and retractable cover shutters are provided for protection during standby mode. In an embodiment, the hot axle detector (30) is configured to cooperate with the axle analyzer (28) to detect which axle number has temperature above the first threshold temperature.
The hot wheel detector (40) is configured to detect the hot wheels. The hot wheel detector (40) includes a second set of temperature sensors (42). The hot wheel detector (40) is configured to cooperate with the memory (10) to receive the second threshold temperature and is further configured to sense the temperature of each of the wheels present in the rolling stock to detect wheels having temperature above the second threshold temperature. In an embodiment, the hot wheel detector (40) includes a second comparator (44) to compare the sensed wheel temperature with the second threshold temperature. In an embodiment, the second set of temperature sensors (42) are high speed infrared temperature sensors. The second set of temperature sensors (42) is positioned along the outer side of the rail road. In an embodiment, the second set of temperature sensors (42) are mounted on resilient mount within housing and retractable cover shutters are provided for protection during standby mode. In an embodiment, the hot wheel detector (40) includes a wheel counter (not shown in figure) to count the number of wheels and detect which wheel number has temperature above the second threshold temperature.
The camera (50) is configured to capture a plurality of images of under gear of the rolling stock. In an embodiment, the camera (50) is mounted on resilient mount within housing and a retractable cover shutter is provided for protection during standby mode. In an embodiment, a plurality of camera (50) is placed on either side of the rail road at a suitable distance and angle from the direction of rail line. The plurality of camera (50) is configured to capture real time video of the under gears of the moving rolling stock. In an embodiment, the plurality of camera (50) is high definition cameras which provide high quality visuals of the moving rolling stock having a speed of around 80 kilometers per hour. In yet another embodiment, the camera (50) has night vision infrared distance of around 80 meters. In one related embodiment, the camera (50) is IP-66 standard compliant.
The damage identifier (52) is configured to identify the damages in the under gear of the rolling stock. The damage identifier (52) includes a third comparator (54). The damage identifier (52) is configured to cooperate with the memory (10) and the camera (50) to receive the set of pre-captured images and the plurality of images of under gear. The damage identifier (52) is further configured to compare the plurality of images of under gear with the set of pre-captured images to identify the damages in the under gear of the rolling stock. In an embodiment, the third comparator (54) compares the plurality of images of under the gear with the set of pre-captured images.
The data logger (56) is configured to cooperate with the rolling stock identification unit (26), the hot axle detector (30), the hot wheel detector (40), and the damage identifier (52) to receive the identified rolling stock, the detected axles having temperature above the first threshold temperature, the detected wheels having temperature above the second threshold temperature, and the damages in the under gear. The data logger (56) is further configured to transmit the identified rolling stock, the detected axles having temperature above the first threshold temperature, the detected wheels having temperature above the second threshold temperature, and the damages in the under gear.
The on-field unit (60) further includes a self-check module (80). The self-check module (80) is configured to check health status of the trigger unit (20), the rolling stock identification unit (26), the hot axle detector (30), the hot wheel detector (40), the at least one camera (50), the damage identifier (52), and the data logger (56).
In an embodiment, the on-field monitoring unit (60) comprises a power unit (58) for providing the power supply to the on-field monitoring unit (60).
In another embodiment, a plurality of on-field monitoring unit (60) is disposed on the rail road at a predetermined distance. The geographical coordinates of each of the on-field monitoring unit (60) is stored in the memory (10) of the specific on-field monitoring unit (60).
The external notification unit (70) comprises a transceiver (72), an alert generation unit (74), a display unit (76) and a report generation unit (78). In an embodiment, the on-field monitoring unit (60) is connected to the external notification unit (70) through wired or wireless means.
The transceiver (72) is configured to cooperate with the data logger (56) to receive the identified rolling stock, the detected axles having temperature above the first threshold temperature, the detected wheels having temperature above the second threshold temperature, and the damages in the under gear.
The alert generation unit (74) is configured to cooperate with the transceiver (72). The alert generation unit (74) is further configured to generate an alert for the detected axles having temperature above the first threshold temperature, the detected wheels having temperature above the second threshold temperature, and the damages in the under gear of the identified rolling stock. The alert generation unit (74) is also configured to cooperate with the self-check module (80) to generate an alert if any one of the trigger unit (20), the rolling stock identification unit (26), the hot axle detector (30), the hot wheel detector (40), the least one camera (50), the damage identifier (52), and the data logger (56) is not working properly. In an embodiment, the alert generation unit (74) generates audio visual alerts. In an embodiment, the alert generation unit (74) also sends alerts via SMS to a registered person.
The display unit (76) is configured to cooperate with the alert generation unit (74) to receive the alert and is further configured to display the alert. In an embodiment, the alert will in the form of pop-up notification which displays the location of coach/ wagon, and affected wheel/ axle number.
The report generation module (78) is configured to cooperate with the transceiver (72). The report generation module (78) is further configured to generate a report based on the detected axles having temperature above the first threshold temperature, the detected wheels having temperature above the second threshold temperature, and the damages in the under gear of the identified rolling stock. In an embodiment, the report generation module (78) can analyse historical train data to provide trending report. Table 1 below illustrates a report generated by the report generation module (78).
Table 1
SI.No Date Train No Unusual detected by system Actual status
1. 06/04/17 DN Goods Wagon No. 29,30,40,41 temp shown 90 to 95 Brake binding attended all 04 wagons at RN
2. 06/04/17 11003 Loco No. 11398 wheel no 04 temp. Shown 98 Brake binding attended at RN
3. 05/05/17 12133 Loco No. 13578 wheel No. 3 &4 temp shown 90,95 Brake binding attended at RN
4. 05/05/17 DN RORO swift KS -06 Wagon No. 30th temp. Shown 90 Brake binding attended at RN
5. 12/05/17 12619 Coach No. SR 021190 temp. Shown 104 Brake binding attended at RN
6. 13/05/17 BOBYN DN Wagon No. 051317231553 temp. Shown 89 to 100 Brake Binding attended at RN
7. 14/05/17 12051 Coach No. 08602 wheel no. 01 temp. Shown 89 Brake Binding attended at RN
8. 15/05/17 12052 Coach No. 2,3,4,6,and 08 Brake Binding attended at RN as same detected in rolling in examination.
9. 20/05/17 12619 Coach No. 12051 temp. Shown 87 to 90 Brake binding attended at RN
10. 07/06/17 DN goods CCTA Wagon No. 02 temp. Shown 95 Temp. Found 90 Beake binding attended.

Figure 3 illustrates a screenshot of the wayside rolling stock monitoring system, in accordance with an embodiment.
Figure 4 illustrates a graphical representation of the wheel temperature and the axle temperature, in accordance with an embodiment. The wheel temperature and the axle temperature below the maximum temperature range.
In an embodiment, the wayside rolling stock monitoring system (100) can also be work as a collision alert system. The data received from different on-field monitoring unit (60) is collected, and analyzed any rolling stocks which are travelling on the same rail road in the direction opposite to each other. In such case, the external notification unit (70) is configured to generate audio and visual alerts by means of the alert generation unit (74) and the display unit (76).
TECHNICAL ADVANCEMENTS
The technical advancements of the system envisaged by the present disclosure include the realization of:
• a rolling stock monitoring system that monitors axle box temperature, wheel temperature and hanging/broken parts;
• a rolling stock monitoring system that is robust, reliable and cost effective in terms of maintenance; and
• a rolling stock monitoring system that has fast response time.
The disclosure has been described with reference to the accompanying embodiments which do not limit the scope and ambit of the disclosure. The description provided is purely by way of example and illustration.
The embodiments herein above and the various features and advantageous details thereof are explained with reference to the non-limiting embodiments in the following description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.
The foregoing description of the specific embodiments so fully revealed the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of preferred embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the spirit and scope of the embodiments as described herein.
Throughout this specification the word “comprise”, or variations such as “comprises” or “comprising”, will be understood to imply the inclusion of a stated element, integer or step, or group of elements, integers or steps, but not the exclusion of any other element, integer or step, or group of elements, integers or steps.
The use of the expression “at least” or “at least one” suggests the use of one or more elements or ingredients or quantities, as the use may be in the embodiment of the disclosure to achieve one or more of the desired objects or results.
Any discussion of documents, acts, materials, devices, articles or the like that has been included in this specification is solely for the purpose of providing a context for the disclosure. It is not to be taken as an admission that any or all of these matters form a part of the prior art base or were common general knowledge in the field relevant to the disclosure as it existed anywhere before the priority date of this application.
The numerical values mentioned for the various physical parameters, dimensions or quantities are only approximations and it is envisaged that the values higher/lower than the numerical values assigned to the parameters, dimensions or quantities fall within the scope of the disclosure, unless there is a statement in the specification, specific to the contrary.
While considerable emphasis has been placed herein on the components and component parts of the preferred embodiments, it will be appreciated that many embodiments can be made and that many changes can be made in the preferred embodiments without departing from the principles of the disclosure. These and other changes in the preferred embodiment as well as other embodiments of the disclosure will be apparent to those skilled in the art from the disclosure herein, whereby it is to be distinctly understood that the foregoing descriptive matter is to be interpreted merely as illustrative of the disclosure and not as a limitation.
,CLAIMS:We Claim:
1. A wayside rolling stock monitoring system (100) comprising:
an on-field monitoring unit (60) includes:
a memory (10) configured to store a set of predetermined rules, a rolling stock identification lookup table, a first threshold temperature, a second threshold temperature and a set of pre-captured images;
a controller (12) configured to cooperate with the memory (10) to receive the pre-defined rules and further configured to generate processing commands;
a trigger unit (20) includes:
a first pair of proximity sensors (22a, 22b) configured to sense the presence/absence of the rolling stock between the first pair of proximity sensors (22a, 22b); and
a switching module (24) configured to switch on/off the on-field monitoring unit (60) based on the sensed presence/absence of the rolling stock;
a rolling stock identification unit (26) having an axle analyzer (28), the rolling stock identification unit (26) is configured to cooperate with the memory (10) to receive the rolling stock identification lookup table, and is further configured to calculate inter-axle distance and count the number of axles present in the rolling stock to identify a rolling stock type based on the rolling stock identification lookup table;
a hot axle detector (30) having a first set of temperature sensors (32), the hot axle detector (30) is configured to cooperate with the memory (10) to receive the first threshold temperature and is further configured to sense the temperature of each of the axles present in the rolling stock to detect axles having temperature above the first threshold temperature;
a hot wheel detector (40) having a second set of temperature sensors (42), the hot wheel detector (40) is configured to cooperate with the memory (10) to receive the second threshold temperature and is further configured to sense the temperature of each of the wheels of the rolling stock to detect wheels having temperature above the second threshold temperature;
at least one camera (50) configured to capture a plurality of images of under gear of the rolling stock; and
a damage identifier (52) having a third comparator (54), wherein the damage identifier (52) is configured to cooperate with the memory (10) and the camera (50) to receive the set of pre-captured images and the plurality of images of under gear, and is further configured to compare the plurality of images of under gear with the set of pre-captured images to identify the damages in the under gear of the rolling stock; and
a data logger (56) configured to cooperate with the rolling stock identification unit (26), the hot axle detector (30), the hot wheel detector (40), the damage identifier (52), and further configured to transmit the identified rolling stock, the detected axles having temperature above the first threshold temperature, the detected wheels having temperature above the second threshold temperature, and the damages in the under gear;
an external notification unit (70) comprising:
a transceiver (72) configured to cooperate with the data logger (56) to receive the identified rolling stock, the detected axles having temperature above the first threshold temperature, the detected wheels having temperature above the second threshold temperature, and the damages in the under gear;
an alert generation unit (74) configured to cooperate with the transceiver (72) and further configured to generate an alert for the detected axles having temperature above the first threshold temperature, the detected wheels having temperature above the second threshold temperature, and the damages in the under gear of the identified rolling stock;
a display unit (76) configured to cooperate with the alert generation unit (74) to receive the alert and further configured to display the alert.
2. The system (100) as claimed in claim 1, wherein the first pair of proximity sensors (22a, 22b) is positioned along a rail road.
3. The system (100) as claimed in claim 1, wherein the external notification unit (70) includes a report generation module (78) configured to cooperate with the transceiver (72) and is further configured to generate a report based on the detected axles having temperature above the first threshold temperature, the detected wheels having temperature above the second threshold temperature, and the damages in the under gear of the identified rolling stock.
4. The system (100) as claimed in claim 1, wherein the first pair of proximity sensors (22a, 22b) is further configured to sense the direction of the rolling stock.
5. The system (100) as claimed in claim 1, wherein the axle analyzer (28) includes at least one proximity sensor and at least one distance sensor.
6. The system (100) as claimed in claim 1, wherein the on-field unit (60) further includes a self-check module (80) configured to check health status of the trigger unit (20), the rolling stock identification unit (26), the hot axle detector (30), the hot wheel detector (40), the at least one camera (50), the damage identifier (52), and the data logger (56).
7. The system (100) as claimed in claim 1, wherein the first set of temperature sensors (32) and the second set of temperature sensors (42) are high speed infrared temperature sensors.
8. The system (100) as claimed in claim 1, wherein the on-field monitoring unit (60) comprises a power unit (58).
9. The system (100) as claimed in claim 1, wherein the first set of temperature sensors (32) is positioned along the inner side of a rail road and the second set of temperature sensors (42) is positioned along the outer side of the rail road.
10. The system (100) as claimed in claim 1, wherein the hot axle detector (30) includes a first comparator (34) to compare the sensed temperature of each of the axles with the first threshold temperature, and the hot wheel detector (40) includes a second comparator (44) to compare the sensed temperature of each of the wheels with the second threshold temperature.