DESC:FORM 2
THE PATENTS ACT, 1970
(39 of 1970)
&
The Patent Rules, 2003
COMPLETE SPECIFICATION
(See sections 10 & rule 13)
1. TITLE OF THE INVENTION
A SYSTEM AND METHOD FOR REMOTE (FAR FLUNG) OPERATION OF CIRCUIT BREAKER OF CRITICAL SUB-SYSTEM DURING UNATTENDED TRAIN OPERATION (UTO) IN METRO TRAINS
2. APPLICANT (S)
NAME NATIONALITY ADDRESS
BEML LIMITED IN BEML Soudha, No 23/1, 4th Main S.R. Nagar, Bengaluru- 560027, Karnataka, India.
3. PREAMBLE TO THE DESCRIPTION
COMPLETE SPECIFICATION

The following specification particularly describes the invention and the manner in which it is to be performed.

FIELD OF INVENTION:
[001] The present invention relates to the field of driverless vehicle. The present invention in particular relates to system and method for remote (far flung) operation of circuit breaker of critical sub-system during unattended vehicles/ trains operation (UTO).
DESCRIPTION OF THE RELATED ART:
[002] The existing metro trains in India are running with Grade of Automation - GoA2, GoA3 & GoA4. For GoA4 operated trains i.e., UTO operation, the train will run in revenue service without Driver. In such cases, if any critical/ emergency exigencies/ malfunctions occurred in any sub system (for e.g. HVAC, Fire Detection System etc.,), then the particular system or in some cases complete train needs to shut down which will create panic to the passengers and there will be delay in revenue service throughout the line. Further to recoup the system/ train, Train Operator/ Co-driver/ Row attendant is required to reset the Circuit breaker.
[003] Existing Metro train doesn’t have any solution for automatic reset option for circuit breaker. Since conventional circuit breaker are electromagnetic in nature, reset can only be done by manually.
[004] Also, switchgear items related to the subsystems usually located in enclosed panels near Gangway cubicles and the same can be opened with the help of square key. In heavily crowded train & cities like Mumbai will lead to delay in revenue service.
[005] Reference may be made to the following:
[006] IN Publication No. 202241010455 relates to autonomous vehicle management systems and strategies are given to deal with traffic anomalies. Detecting traffic anomalies in a certain geographic region is one example of a technique in one example implementation. At least one autonomous vehicle is selected by one or more computing devices to deal with the traffic anomaly in the geographic region. At least one autonomous vehicle is instructed by one or more processing devices to enter a traffic reduction operation mode to deal with the traffic anomaly, in accordance with this way of operation and based at least in part on the profile associated with the traffic reduction mode, traffic reduction operating mode. Onboard the autonomous vehicle, the profile associated with traffic reduction mode is saved. The self-driving car is set up to reduce traffic congestion while in this mode.
[007] IN Publication No. 201611001237 relates to the same model for driverless trains. We are using 8051 microcontroller which controls the rotation of motor. The speed of the train is controlled by the dc geared motor. This train is designed for five stations named station 1, station 2, station 3, station 4, station 5 etc. The train is programmed for specific path. Every station on the path is defined. It is also the buzzer system. The train is going to leave the station, operates buzzer. Liquid Crystal Display for showing different messages in the train for public. Stoppage time is 4 Sec and time between two stations is 7 sec. These trains are equipped with the CPU which control the train. Every station on the paths is predefined. After stopping at station, the trains announce the station’s name. The monitoring system of the station and door system operated by embedded "C" language programming, and DC geared motor operated by metro train forward and back and door closed and opened according to stations.
[008] IN Publication No. 202127037884 relates to a method for operating a train comprising two or more locomotives, the method comprising the steps of: Setting one or more locomotive control levels and choosing a selected route of travel; Calculating a target train speed profile and a target in-train force profile over at least a portion of the selected route; Measuring one or more operating parameters related to the operation of the train; Calculating a future train speed profile and a future in-train force profile for a future period based on at least one of the one or more operating parameters, at least one of the one or more locomotive control levels and one or more pieces of information relating to the selected route; Calculating adjusted locomotive speed control levels relating to the one or more operating parameters based on a difference between the target train speed profile and the future train speed profile, the adjusted locomotive control levels being adapted to maintain the target train speed profile over the future period; Calculating adjusted in-train force control levels relating to the one or more operating parameters based on a difference between the target in-train force profile and the future in-train force profile, the adjusted in-train force control levels being adapted to maintain the target in-train force profile below a target level over the future period; Dividing the adjusted locomotive control levels and the adjusted in-train force control levels between the two or more locomotives to form locomotive-specific locomotive control levels for each of the two or more locomotives, the locomotive-specific locomotive control levels being at least partially adapted to control and/or balance in-train force levels below the target level Provide locomotive-specific locomotive control levels for communication to each of the two or more locomotives; and Operating each of the two or more locomotives according to the locomotive-specific locomotive control levels.
[009] IN Publication No. 201717046107 relates to the method and system for monitoring on-route transportations. The method includes obtaining a driving route of a target vehicle; obtaining a reference 5 position on the driving route away from a first current position of the target vehicle; determining a second current position of the target vehicle after a reference time; determining a distance between the second current position and the reference position is greater than a preset distance; and sending a signal to a target terminal indicating that the target vehicle is off-route.
[010] IN Publication No. 201747033599 relates to a system and method for examining a route and/or vehicle system obtain a route parameter and/or a vehicle parameter from discrete examinations of the route and/or the vehicle system. The system includes a controller and route examination equipment. The route examination equipment obtains a route parameter indicative of a condition of a route over which a vehicle system travels. The controller receives the route parameter and examines the route parameter to determine the condition of the route. The controller can control at least one operational aspect of the vehicle system in response to the determined condition of the route.
[011] IN Publication No. 202037031374 relates to a train control method, apparatus, and system, where one end of the train is configured with a VOBC. The method includes: performing (S101) a train awakening process; acquiring (S102) a running plan sent by an ATS system; setting (S103) according to a direction indicated by the running plan, a running direction of the train to be downward or upward; when the running direction is set to be downward, using (S104) as a head for train positioning, the other end of the train not configured with the VOBC, to acquire positioning information of the train; when the running direction is set to be upward, using as the head for train positioning, one end of the train configured with the VOBC, to acquire the positioning information; and controlling (S105), according to the positioning information of the train, the train to pull out of a parking garage., thereby improving the running efficiency of the train.
[012] IN Publication No. 201817046937 relates to system and method for monitoring an on-demand service. The system may perform the method to receive a service request from a terminal, wherein the service request may include a departure location and a destination; determine a reference parameter based on the departure location and the destination(404); determine an actual parameter based on an actual itinerary associated with the service request(406); estimate a first difference between the reference parameter and the actual parameter; determine whether the first difference exceeds a first threshold; and send a notification to the terminal based on the determination that the first difference exceeds the first threshold.
[013] Publication No. WO2017069790 relates to A method and a structure for an Autonomous Train Control System (ATCS) are disclosed, and are based on a plurality of autonomous train control elements that operate independent of each other. An autonomous train control element operates within an allocated track space, and based on predefined rules. Further, autonomous train control elements are paired together to exchange operational data. Pursuant to the predefined rules, an autonomous train control element acquires needed track space from a paired element, and relinquishes track space that is not required for its autonomous operation to a paired element. Further, an autonomous train control element is assigned a priority level with respect to the acquisition/relinquishment of track space.
[014] Publication No. US20170045885 relates to computer devices, systems, and methods for an autonomous passenger vehicle are described. An unexpected driving environment can be identified, such as by using one or more processors. Information based on the unexpected driving environment received from one or more sensors disposed on the vehicle can be sent to a remote operator using a remote server. A command sent by the remote operator relating to one or more vehicle systems can be received. The command can be sent to the one or more vehicle systems for execution.
[015] The article entitled “GM patents autonomous tech to train new drivers sans instructor” by Eric Stafford; APR 19, 2022; car and driver talks about the GM's system can give greater control to the driver-in-training if they achieve a high enough score. Human driving instructors might soon be replaced by computerized ones. No, not full-blown robots, but rather autonomous vehicles. GM's patent describes autonomous technology that doesn't require a living, breathing driving instructor. Instead, the system is designed to evaluate and train novice drivers by using a combination of sensors for the car's autonomous features as well as monitoring how the driver-in-training operates controls such as the accelerator, brake, and steering. The system also uses a processor with a driving algorithm stored in the car's memory. By comparing the trainee's manual inputs with recommended driving instructions, the processor calculates a score.
[016] In a Metro train, safety/ protection of all the equipment is important. Generally, circuit breaker is used for protection. Traditional/ General Circuit Breaker is an electromagnetic device designed to distribute power to the loads and protect equipment from over current. Whenever there is a high current flow through it, circuit breaker cuts the power to protect the device. Once load recedes, circuit can be manually switched back on. For such cases driver or operator is required to reset the circuit breaker manually. Hence there needed an automated monitoring system which tripes circuit breakers on/off or reset automatically without any human intervention.
[017] In order to overcome above listed prior art, the present invention aims to provide system and method for remote (far flung) operation of circuit breaker of critical sub-system during unattended vehicles/ trains operation (UTO). The circuit breakers can be tripped on/off or reset automatically without any human intervention.
OBJECTS OF THE INVENTION:
[018] The principal object of the present invention is to provide system and method for remote (far flung) operation of circuit breaker of critical sub-system during Unattended vehicles/ Trains Operation (UTO).
[019] Another object of the present invention is to reset any subsystem from Remote location (OCC).
[020] Yet another object of the present invention is to power OFF / trip any MCB through remote command in the event of a tripping in driverless vehicle.
[021] Still another object of the present invention is to activating any Sub system through remote command in driverless vehicle.
SUMMARY:
[022] The present invention relates to a system and method for remote (far flung) operation of circuit breaker of critical sub-system during unattended vehicles/ trains operation (UTO). This invention is developed to remotely ensure the following functions in a metro UTO train:
1. Resetting of any subsystem from Remote location (OCC)
2. Powering of any MCB through remote command in the event of a tripping.
3. Deactivating any Sub system through remote command.
BREIF DESCRIPTION OF THE INVENTION
[023] It is to be noted, however, that the appended drawings illustrate only typical embodiments of this invention and are therefore not to be considered for limiting of its scope, for the invention may admit to other equally effective embodiments.
[024] Figure 1 shows block diagram of the system for remote (far flung) operation of circuit breaker of critical sub-system during unattended vehicles/ trains operation (UTO);
[025] Figure 2 shows flowchart according to the present invention.
DETAILED DESCRIPTION OF THE INVENTION:
[026] The present invention provides a system and method for remote (far flung) operation of circuit breaker of critical sub-system during unattended vehicles/ trains operation (UTO). This invention remotely ensures the following functions in a metro UTO train:
1. Resetting of any subsystem from Remote location (OCC)
2. Powering of any MCB through remote command in the event of a tripping.
3. Deactivating any Sub system through remote command.
[027] The system comprises power supply; DC-DC converter; relays; remote module; circuit breaker; DC-DC converter (based on voltage requirement); TCMS system and CC (Car borne Controller) (fig 1). The OCC-TCMS system is interface via CC (control unit of signaling system) with rolling stock using relay logic & remote module for metro trains operation in UTO mode. Figure 1 shows block diagram to show the flow of circuit between OCC-CC and CC-TCMS (via CC) & train-side and the scope of activity involves in the circuit mainly to achieve the remote operation of critical subsystems through circuit breaker using remote module to avoid panic to passengers & reduce the delay time in revenue service.
[028] This invention provides switch ON/ OFF (Reset/ Trip) supply of critical subsystems via remote module of Miniature Circuit Breaker (MCB) through train control & monitoring system from Operator Control Centre (OCC) without any human intervention when train is running in UTO mode. This far-flung operation will help when the train is in revenue service & especially during crowded conditions. This also keep people safe from the arc/ flash from circuit breakers. This feature is implemented in Mumbai metro trains of route Line 2 & Line 7 (fig 2).
[029] The circuit breakers can be tripped on/off or reset automatically without any human intervention. Remote module (motor operating device) has to be associated with Circuit Breaker for remote control (opening or closing) of the MCB. 24VDC Power supply is given to Remote module via 110V to 24V DC-DC converter. TCMS output is connected with Relay coil and other end of relay is connected to negative point. OCC will give signal to TCMS via CC i.e., Trip/ Reset command signal. TCMS read this signal as an Input and in turn generates digital output signal to energize/ de-energize trip/ reset relay coil. The trip/ reset relay contacts connected as input to the remote module which operates particular subsystem circuit breaker remotely.
[030] It enables remote operation & monitoring. Additional operator is not required to reset MCB (in case of UTO mode). The driver can operate MCB from driver cabin through TCMS visual display unit (TCMS VDU) and time can be saved.
[031] Numerous modifications and adaptations of the system of the present invention will be apparent to those skilled in the art, and thus it is intended by the appended claims to cover all such modifications and adaptations which fall within the true spirit and scope of this invention.
,CLAIMS:WE CLAIM:
1. A system and method for remote (far flung) operation of circuit breaker of critical sub-system during unattended vehicles/ trains operation (UTO) comprises-
a) 110VDC power supply;
b) DC-DC converter (3) powered up with 110VDC which converts 110VDC to 24VDC & this supply is fed as an input to Remote Module (4) mounted along with MCB.
c) relays;
d) circuit breaker;
e) TCMS system (2) and CC –Car borne controller wherein TCMS (2) provide Digital output to energize Trip/ Reset relay. Based on command from OCC, respective relay will be energized and MCB will be Trip/ Reset accordingly by Remote Module (4).
wherein when there is malfunction/fault in any subsystems, that particular subsystem will be isolated by switching OFF/ tripping & switching ON/ reset MCB’s with remote commands.
2. The system and method for remote (far flung) operation of circuit breaker of critical sub-system during unattended vehicles/ trains operation (UTO), as claimed in claim 1, wherein the switch ON / OFF supply of critical subsystems via remote module of Miniature Circuit Breaker (MCB) through Train Control & Monitoring System from Operator Control Centre (OCC) without any human intervention when train is running in UTO mode.
3. The system and method for remote (far flung) operation of circuit breaker of critical sub-system during unattended vehicles/ trains operation (UTO), as claimed in claim 1, wherein to tripped on/off or reset circuit breakers automatically includes remote module (motor operating device) for remote control (opening or closing) of the MCB, Power supply is given to Remote module via 110V to 24V DC-DC converter; TCMS output is connected with relay coil and other end of relay is connected to negative point; OCC will give signal to TCMS via CC i.e. trip/ reset command signal and TCMS read this signal as an input and in turn generates digital output signal to energize/ de-energize trip/ reset relay coil and trip/ reset relay contacts connected as input to the remote module which operates particular subsystem circuit breaker remotely.