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Development of Multi Section Digital Axle Counter

Development of Train Protection & Warning System

On-Board Display of Signal Aspect (OBDSA)

tender was opened on 15.01.2013 in which 08 firms participated. By end of 2012-13, few agencies have been able to develop lab demo models. Preparations

Train Collision Avoidance System (TCAS) is for trials in Lingampalli- Vikarabad- Wadi- Bidar meant to provide protection by preventing trains to Section of SC Railway have been taken up for further pass signal at Danger (Red), excessive speed over development of TCAS.turnouts / Speed restrictions and to avoid the situation in which more than one trains are on the same track to cause collision, in case operations are not able to

Train Protection & Warning System (TPWS) is a control so. It also provides assistance to Loco Pilots by continuous supervision system that provides safety in means of real-time display of signal aspects in Loco train operations by dynamically monitoring the speed Pilot's cab. This includes key features of ACD & ETCS of the train against specified limits & eliminates risks TPWS at much lower cost. It is based on the arising due to cases of Signal Passing at Danger determination of location of Trains through distance (SPAD). The speed limits are specified dynamically traversed from RFID tags installed on track and based on signal aspect, route to be followed, sectional transmission of signalling related information from speed limits, permanent speed restrictions etc. Stationary Unit such as Station Interlocking.

Till 2011-12, the system has been commissioned The specification for the first phase i.e. Absolute on 51.75 route kilometers of Chennai-Gumudipundi B l o c k S y s t e m h a s b e e n f i n a l i z e d a s section of SR and was under commercial trial in Hazrat RDSO/SPN/196/2012 Version 3.1.1 through the Nizammudin -Agra section of NCR. Also, the existing process of EOI in the year 2011-12. specification of TPWS has been revised and finalized

In the year 2012-13, the Concept Field Trial has as RDSO/SPN/183/2012 Version 2.3 incorporating

been conducted (in Oct-2012) in Secunderabad the experience of SR.

Division of SC Railway. Demonstration to Chairman In the year 2012-13, TPWS is also being Railway Board & Member Electrical was made on

implemented in Kolkata Metro. All the installation and 16.10.2012. Further, demonstration to Committee of testing for trackside and onboard equipment is in final Additional Members from Railway Board was also stages and Metro railway start commercial trials of the made on 10.11.2012. Based on successful system after obtaining CRS sanction.demonstration , to undertake trials on 250 km. section,

OBDSA is intended to provide display of lineside signal aspects inside Loc Pilot's Cab. It would be a portable device to be carried by Crew on duty with weight somewhat near to that of a laptop. It shall be deployed in Absolute Block Section Territory and OBDSA equipped Locomotive shall be interoperable in TCAS (Train Collision Avoidance System) equipped section. On the basis of participation of various firms

Signal Aspect in Cab

Display During Prevention of SPAD withEmergency Brake Application

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from industry through the process of EoI, draft functional requirements were under modification by the end of 2012-13. Function-wise, OBDSA has been With development of modern fault tolerant and envisaged as subset of TCAS. Unlike TCAS, it does fail-safety techniques, electronics and particularly not have braking interface to Locomotive and would be microprocessors have found acceptance in the area of easier to install compared to TCAS. Railway signalling world over including Electronic

Interlocking. The features like software based interlocking logic, less wiring, easy alterations, self diagnostic, in-built data logger etc. make it maintainer Project for development of DAC (SSDAC & friendly. Two types of indigenous EIs are being MSDAC) is in progress in collaboration with CSIR and developed.CEL. SSDAC has been developed and being supplied

to Zonal Railways on regular basis.

Till 2011-12, field trial of indigenous Multiple Section Digital Axle Counter (MSDAC) is completed at Faridabad (Northern Railway). In 2012-13, based on satisfactory trial at Jaitipur, extended field trial for 10 systems has been taken up.

Now, new specification of EI for big yards (more Provision of BPAC will reduce dependence on than 200 routes) has been finalised in SSC and

human element in train approved by Railway Board as per SSC operation and thus will recommendations, have been circulated to Zonal improve safety. BPAC Railways for trials.using UFSBI & SSDAC for single line & double line has been developed

Object is to develop tool to improve the with two sources till 2011-reliability & safety aspect of present EI systems. With 12. In 2012-13, M/s. CEL, this model, conversion and verification of safety rules Sahibabad have also for signalling system based on yard plan, control table been given limited supply and generic signalling circuits shall be possible. Model approval for both Single for equations for given yard for use of application data Line and Double Line for EI to be generated and verification of above model BPAC using UFSBI. to check safety aspect by verifying parallel, conflicting

Further, Solid State movement and control of points etc..shall be possible.

Block Proving by Axle Later in next phase, this tool to be used generate

Counter (SSBPAC) has verified application data for EI. MoU signed between

been developed as per RDSO & IIT/ KGP.

RDSO/SPN/ 175/2005. Field trials of prototype e q u i p m e n t s w e r e

Object is to develop alternative of Earth completed in 2011-12. In Leakage Detector with more reliable and efficient on year 2012-13, SSBPAC line insulation monitoring system for signalling cable. of one more source, M/s. With this testing of cable shall be possible without this Medhaservodr ives, connection. Through the process of EOI, three firms Hyderabad is under type have been shortlisted for the development. IITs are testing in RDSO lab.also being consulted for taking up this project.

Design & Development of Electronic Interlocking (EI) System

Indigenous Development of Multi Section Digital Axle Counter

Development ofBlock Proving by Axle Counter (BPAC)

Modelling and Validation of Interlocking for Railway Signalling Systems

Development of Online Insulation Monitoring (OLIM) System

Multi Section Digital Axle Counter Reset Panel of MSDAC

UFSBI & Relay Rack of BPAC

Block Panel of BPAC

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Development of Capacity Optimization & Simulation Tool (COST)

Reliability Improvement of IPS

Development of LED Signals for Specific requirement in Tunnels for Metro Railway, Kolkata

nd82 Signal Standards Committee 2012

Development of Fuse Auto Changeover System (FACS)

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numbers is also made.

The development comprises of design of basic software tool for computation of line capacity of any Indian Railway section taking into consideration various parameters like type of block working, block length, signal spacing, speed restrictions, and other parameters that would have an effect on line capacity. The tool would be used for examining the effect on line capacity of the technological improvements like Intermediate Block Signalling, introduction of a new stations, doubling/tripling/quadrupling, etc. The tool would be used for examining the effect on line capacity of changes in operational patterns like using mix of goods and passenger trains, various loco load combinations, intelligent speed adaptation, etc. The tool would assess the extent to which section line capacity could be increased and quantify the impact of each capacity enhancement.

The development is jointly being done by IIT/Mumbai and RDSO. MOU signed between Several vendors have applied for development IIT/Mumbai and RDSO and first meeting held with of the product and are developing prototype.IIT/Mumbai to decide upon the prototype section, time frame and deliverables year wise. Work of

To improve the overall reliability of IPS, a infrastructure development and manpower

modification plan was undertaken to achieve major deployment under progress at IIT/Mumbai.

modifications & reliability improvement measures in all the IPS systems working in the field, which has almost been completed by all the OEMs.

Signals installed inside tunnels over Metro In order to further reduction in failure rate due to Railway, Kolkata are having different dimensions than frequent supply fluctuation/high voltage surges, an signals used over Indian Railways. Existing LED isolation transformer was provided at the input of IPS signals could not be used in these tunnels and in various railways for the field trial.development of LED signals was taken in hand for this

To reduce the failures related to LVDS, field trail specific requirement of Metro Railway, Kolkata.

of manual bypass of LVDS are being conducted where Prototypes were developed and evaluated at RDSO

IPS are installed with LMLA batteries only.and field trial to install 50 no. of signals is permitted over Metro Railway. So far, these are working

The meeting of 82nd Signal Standards satisfactorily.Committee 2012 was held at N.W. Railway, Jodhpur on 14.12.12 & 15.12.12. Following items were deliberated by the SSC:In any signaling installation, each relay circuit

Specification of Electronic Interlocking has a fuse which plays a very vital role in the signaling (RDSO/SPN/192/2005)circuit. While blowing a fuse in case of any short circuit Centralized and distributed scheme for EIcondition protects the circuit, a considerable no. of

fuse blowing occurs due to other reasons like transient Draft Chapter for SEM on Electronic etc. With the intention of reducing down time and to Interlockingmonitor the status of various fuses, a new specification Specification of Single Section Digital Axle for Fuse Auto changeover system has been Counter (RDSO/SPN/177/2012, Ver. 3)developed. The system has one standby fuse for every

Configuration for dual BPACsignaling fuse. The standby fuse automatically comes Backup of AFTC/DCTC with Axle Counterin signalling circuit in case the main fuse is blown. Specification of Data Loggers (IRS:S 99/2006)Provision for status monitoring both for main as well as

standby fuse has been done in the system. Remote Integrity testing of interlocking using Data audio visual extension of alarm is also extended for Loggersimmediate attention of the maintenance personnel. Specification for LED Signal (RDSO/SPN/ Provision for sending SMS separately for main and 153/2011, Rev. 4.1)standby fuse blown events to designated GSM

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Specification for Electric Lifting Barrier Scheme for use of IPS for LC gates(RDSO/SPN/208/2012, Ver. 2)

Specification of Track Feed Battery Charger th (IRS:S 89/93) 14 Maintenance Study Group (Signalling)

Specification for Fuse Auto Changeover system Meeting 2012 was held at South Central Railway, st st(FACS)(RDSO/SPN/209/2012, Rev. 0) Secunderabad on 31 May & 1 June 2012. Following

items were deliberated in MSG meeting:Specification for Double Walled Corrugated H D P E D u c t f o r s i g n a l l i n g c a b l e Electronic Interlocking(RDSO/SPN/204/2011, Ver. 1.0) Metal to Carbon RelaysSpecification of PVC Insulated Underground Digital Axle Counter/MSDACUnscreened Cables for Railway signalling

Integrated Power Supply(IRS:S 63/2007)

Electric Lifting BarrierGuidelines on Signalling Cable Laying

Audio Frequency Track CircuitAdoption of New technology point machines and issue for IRS: S 64