Document No: MP. 0. 0400.13 Revision No: 0-draft Date ... spec of Fog...Document No: MP. 0. 0400.13...

Document No: MP. 0. 0400.13 Revision No: 0-draft Date Issued: 06/10/2016

Specification Title: Fog Vision System for Diesel Electric Locomotives

INDIAN RAILWAYS, RESEARCH DESIGNS & STANDARDS ORGANIZATION Printed: 2016/10/07

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LIST OF AMENDMENTS

S. No. Amendment Date Revision Details

1. 1 06/10/2016 0-draft First Issue




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CONTENTS 0 Introduction ........................................................................................................................................... 3 1 Objectives and Scope of the specification ............................................................................................ 3 2 Terminology / Abbreviations ................................................................................................................. 3 3 Scope of Supply ................................................................................................................................... 3 4 Functional requirements ....................................................................................................................... 4

4.1 Operation in Fog: .......................................................................................................................... 4 4.2 Traffic lights distinction ................................................................................................................. 4 4.3 Display of real-time enhanced video as a driving aid ................................................................... 4 4.4 Field Of View (FOV) ..................................................................................................................... 5 4.5 Anti-blooming mechanism ............................................................................................................ 5 4.6 System sensitivity ......................................................................................................................... 5

5 Technical Requirement ......................................................................................................................... 5 6 Environmental condition ....................................................................................................................... 6 7 Life cycle management ......................................................................................................................... 6

7.1 Expected life ................................................................................................................................. 6 7.2 Support during lifetime .................................................................................................................. 6 7.3 End of equipment life management .............................................................................................. 7

8 Safety requirements ............................................................................................................................. 7 9 Tests and Verification ........................................................................................................................... 7 10 Documents required from supplier ................................................................................................... 7 11 Warranty ........................................................................................................................................... 8 12 Marking and Packing ........................................................................................................................ 8 13 Training ............................................................................................................................................. 8 14 Undertaking by equipment manufacturer ......................................................................................... 8 15 Declaration of confidentiality of submitted documents by manufacturers ........................................ 8

LIST OF FIGURES Error! No table of figures entries found. LIST OF TABLES Error! No table of figures entries found. LIST OF REFERENCED DOCUMENTS

S. No. Document name / number

1. IEC 60571

2. IEC 62236

3. RDSO Specification no. RDSO/SPN/153/2011

LIST OF ANNEXURES Annexure-1 Indicative Drawing of Control Desk

Annexure-2 Maximum Moving Dimension

[Click here and enter annexure title]




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0 Introduction During dense foggy weather conditions, it is very difficult to maintain the punctuality of trains and train accidents are also more common as the vision for the pilots is not clear enough. In fog, a proportion of the light is scattered by water droplets present in the atmosphere and thus deviates from its path. The scattering increases with the distance.

Objective of this specification is the development of Fog Vision System (FVS) which shall be capable of assisting the locomotive pilot by enhancing visibility under dense fog conditions for operating the trains and locomotives of Indian Railways.

The specification is prepared to define the functional & technical requirements, design, inspection and test schedules required for development and deployment of fog vision system on diesel-electric locomotives and any other self-propelled vehicle treated as train of Indian Railways.

The specification covers basic features of the system. Technology of Fog Vision System shall be dependent on the supplier; however, requirements of this specification must be met. The suppliers may supply their own type of devices for image stream source such as Infrared Camera, Visible Light Camera and Radar Imager etc. for the fog vision system. It is the responsibility of the manufacturer/supplier to develop detail design/circuit to meet the requirements of this specification.

1 Objectives and Scope of the specification

This document lists the functional requirements of fog vision system for use on diesel electric locomotives of Indian Railways.

This document has been prepared with an aim of defining the requirements for development of system which shall be capable of assisting the locomotive pilot by enhancing visibility under dense fog for operating the trains and locomotives.

This document is a starting point for further development of equipment specification, inspection and test schedules required for deployment of equipment on Indian Railways.

2 Terminology / Abbreviations a) „RDSO‟ means Research Designs and Standards Organization, Ministry of Railways, Manak

Nagar, Lucknow-226 011.

b) „DLW‟ means Diesel Locomotive Works, Varanasi-221 004.

c) „BG‟ means 1676 mm gauge, referred to as Broad Gauge.

d) „IEC‟ means International Electro-technical Commission.

e) „IS‟ means Indian Standard.

f) „AAR‟ means Association of American Rail-roads.

g) „UIC‟ means Union International Des Chemins defer (International Union of Railways)

h) „IRS‟ means Indian Railway Standard.

i) „IR‟ means Indian Railways.

j) SWIR means Short-wave infrared (ʎ = 1.0 to 3 µm)

k) MWIR means Mid-wave infrared (ʎ = 3 to 5 µm)

l) LWIR means Long-wave infrared (ʎ = 8 to 12, or 7 to 14 µm)

m) HMI means Human Machine Interface

n) DIALS means Digital Into Analogue LCD - based System

3 Scope of Supply The proposed fog vision system per one loco set shall contain following major components which are within the scope of supply of the tenderer:

Camera – 02 Sets ( One at either end of loco)




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Control Unit: Preferably software controlled through a suitable HMI using context sensitive keys.

Display Unit for viewing video – 02 Sets (On each Control desk)

Processing unit (Might be integrated in other modules)

Required cables and interfacing equipment

Hardware for mounting and cabling. The above list is indicative and tenderers may supply additional components as per their own design. The system shall be based on a robust and proven solution.

4 Functional requirements

4.1 Operation in Fog:

Following types of fog conditions may be considered for design of the system:

Extreme fog condition - Visibility less than 5 meters.

Dense fog condition - Visibility less than 100 meters.

Mild fog conditions - Visibility less than 300 meters.

Note: Visibility should be referred as Meteorological Optical range.

Performance requirements Validation for the above fog situations shall be done by using mathematical model for atmospheric propagation of electromagnetic radiation (e.g. “MODTRAN”). Each fog condition will be represented by a model where the visibility is defined as the range at which the light is attenuated to 2% of its original intensity at a wavelength of 550 nm.

4.2 Traffic lights distinction

The fog vision system should distinguish aspect of color light signal ie. Red, Yellow and Green. The spectral intensities of the Green, Red and Yellow traffic lights are according to RDSO specification No. RDSO/SPN/153/2011, Rev 4.1 or latest. Distinction shall be made between Yellow and Double Yellow aspects as they convey different meaning to loco crew. The nominal centre to centre distance between two Yellows in “Double Yellow” is 600 mm.

Proper selective optical filters should be used so that undue objects should not be displayed as

signals.

‘RED‟ aspect must always get displayed as „RED‟ and there should not any instance when „RED‟

aspect is mistaken for „Non RED‟ aspect.

4.3 Display of real-time enhanced video as a driving aid

The equipment shall enhance range of visibility according to table below and display the same in the form of a real-time video on display screen located ergonomically near the operator‟s seat. The enhanced video shall be provided for use as a driving aid for the locomotive pilot for driving under poor visibility conditions. The system shall enhance visibility to:

1. Enable recognition of human object [1.7 x 0.6m]

2. Detect, classify and display the Red, Yellow and Green traffic lights colors.

The table above shows detection range of human and traffic lights during day time.

Traffic Lights classification range

Human object detection range

Normal Visibility Train Speed Weather Condition

1.5 Km 1.1 Km Horizon limited 130 kmph Clear

1.5 Km 1.1 Km 300m 130 kmph Mild Fog

550 m 550 m 100m 60 kmph Dense Fog

30 m (minimum) 40 m (minimum) 5m 10 kmph Extreme Fog




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The performance of the system shall be verified by testing the system in controlled and measurable environment conditions. The performance shall be calculated from those tests. A detailed report shall be presented to RDSO or purchaser.

4.4 Field Of View (FOV)

Imaging system shall enable to identify whether object is on the same track or not and preferably as an additional feature, identification of closeness of an object to track may also be provided. Wide range of visibility equivalent to width of 3 tracks shall be ensured.

The enhanced visibility Horizontal Field Of View (FOV) shall be at least 35°

The enhanced visibility Vertical FOV shall be at least 25°.

4.5 Anti-blooming mechanism

The system shall have an anti-blooming mechanism to prevent obscure of information due to the bright

source (headlight of passing locomotive or any other blooming effect).

4.6 System sensitivity

In case a thermal imaging camera is used, the Noise Equivalent Temperature Difference (NETD) of the

system shall be lower or equal to 20mK in the full operating temperature range.

5 Technical Requirement

5.1 The system shall be user friendly providing hands free and fully automatic features. 5.2 The system will be highly rugged for external environment. 5.3 Proper vibration isolation technology shall be provided for the system at physical level. 5.4 Video stabilization algorithms shall be implemented to stabilize real time videos. 5.5 Hermetic ceiling shall be provided for critical components. 5.6 Every component of the system shall be mounted on locomotive itself. The system shall be

self-sufficient and there shall not be any installation on the track side. 5.7 The system shall be universally suitable for all types of sections of Indian Railways like single

line, double line, multiple lines etc. 5.8 Under extreme fog and dense fog conditions maximum loco speed may be 10 kmph and 60

kmph respectively whereas under mild fog conditions it may be taken as 130 kmph. 5.9 The system video output shall be according to the following specification:

Video resolution shall be at least 1280 X 960.

Video refresh rate shall be at least 30Hz.

Video latency of the system shall be less than 100 mSec

Video shall be monochrome and the traffic light symbols displayed with their recognized

color.

5.10 System control shall preferably be implemented by a HMI with touch panel for display which uses a multi-mode display and context sensitive keys (like a mobile phone). Resolution and pixels size shall be informed by the supplier.

5.11 Fog vision system shall be powered from the locomotive battery power supply of 74 volts DC (for HHP locos) or 72 volts DC (for ALCO locos). The offered design shall accommodate the voltage variation permitted as per IEC 60571. System shall be designed to minimize the power requirement. The electromagnetic compatibility inside the locomotive shall be as per IEC-62236.

5.12 The vision system shall have a logic that enables auto shut down when loco is off. Indication for the loco status could be the BL key or reverser handle or any other suitable digital input.

5.13 For camera, common mounting platform shall be used across vendors. Mounting arrangement of camera shall be such that clear view is available and it is robust to sustain and isolate jerk and vibration experienced while locomotive running.

5.14 Processing unit of Fog vision system shall be installed at suitable location. It is recommended to visit the loco for understanding the space availability for fitment of the System. HMI (Display for Video) shall be installed at Control Desk of the locomotive. The 3D drawings of control desk shall be provided by the purchaser. Indicative drawing of Control desk for Dual Cab and single cab HHP Loco is attached at Annexure-1. Overall dimension, Weight with location of fitment in loco for the Fog Vision System and its sub assembly should be furnished by the supplier to purchaser with their offer. The components installed at the locomotive‟s exterior




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shall not infringe the maximum moving dimension. The Drawing indicating maximum moving dimension of loco is attached at Annexure-2.

5.15 Connectors used with Fog Vision System should be compliant to MIL standard or equivalent. 5.16 The system shall run built in self-test on power up, and could give warning to the driver if the

system fails and is not functioning as expected. 5.17 Anti-pilferage and vandal proof mechanism should be provided for external equipment. 5.18 Power up time shall be less than 1 minute

6 Environmental condition

Image quality is often limited by scattering caused by particles present in the imaging medium by losing contrast and resolution. Followings are to be considered in design & development of fog vision system:

Extreme fog conditions (sometimes normal visibility up to 5 meters)

Requirement of very fast real time image processing / stabilization system

High vibration of train at real time (loco speed up to 130 kmph)

Environmental protection (heavy rain fall, humidity, oil/dust inside the loco etc.)

High temperature variations Following Environmental condition is given for reference purpose.

Atmospheric temperature

Maximum temperature of metallic surface under the sun: 75ºC. Minimum temperature: -10ºC (Also snow fall in certain areas during winter season.)

Reference site conditions

Ambient temperature: 50ºC Humidity: 95-100% Altitude: 1776 m above mean sea level

Humidity 100% saturation during rainy season

Rainfall Very heavy in certain areas

Atmospheric conditions

Extremely dusty and desert terrain in certain areas. The dust content in air may reach a high value of 1.6 mg / m³. In many iron ore and coal mine areas, the dust concentration is very high affecting the filter & air ventilation system.

Coastal area Humid & salt laden atmosphere with maximum pH value of 8.5, sulphate of 7 mg per litre, maximum concentration of chlorine 6 mg per litres and maximum conductivity of 130 micro siemen/cm

Wind speed High wind speed in certain areas, with wind pressure reaching 150 kg/m2

7 Life cycle management

The equipment supplier shall ensure that the lifecycle requirements of the equipment be met as detailed in the paragraphs below.

7.1 Expected life

The expected life of the equipment shall be 12 years or more.

7.2 Support during lifetime

The equipment manufacturer shall ensure that the following support is available on demand during the equipment lifetime:

Service / spares support for the equipment

Options for comprehensive maintenance contracts

Modifications in equipment design to meet new requirements or to improve reliability

The options for demanding these support services shall be reserved by the Indian Railways and the equipment manufacturer shall provide the same on demand.

The equipment manufacturer shall submit an undertaking to support the equipment during its declared lifetime. This undertaking shall be provided during type testing and design approval and also while entering into purchase contracts.




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Note: Cost of the services shall be determined through a mutually acceptable process between the manufacturer and the users on the Indian Railways.

7.3 End of equipment life management

The equipment manufacturer shall provide options to upgrade / refurbish equipment at the end of life of the equipment when requested by the Indian Railways.

The equipment manufacturer shall submit an undertaking to provide options for end of life management when required by Indian Railways. This undertaking shall be provided during type testing and design approval and also while entering into purchase contracts.

8 Safety requirements The equipment shall meet all statutory and regulatory criteria required for safety of users.

9 Tests and Verification

The following tests shall be conducted for testing the equipment for compliance and suitability.

9.1 One no. complete prototype system shall be tested to ensure compliances of BS EN 50155-2007 or IEC 60571. Verified Test certificates and reports submitted from internationally accredited/NABL accredited lab for environmental test compliances may be accepted.

9.2 Visual check and verification with respect to approved dimensions.

9.3 Proof of concept demonstration of the system under controlled conditions. Test protocol shall be submitted by the supplier with their offer.

9.4 Verification of compatibility for fitment on locomotive.

9.5 Fitment and functional trials on locomotive in the foggy weather. The detailed test protocol covering Functional and technical requirements (detailed at Para above) shall be submitted by the supplier with their offer.

9.6 Based on the compliance of the above, field trials (minimum 3 months or as decided by purchaser) of minimum 02 Nos. or as decided by purchaser for performance evaluation shall be closely monitored and evaluated by RDSO for:

Reliability under actual operating conditions

Advantages for locomotive operation and maintenance

Maintainability of the system

9.7 Notwithstanding anything that may be specified in this specification, the final responsibility for the suitability of the design and complete integration shall lie with the supplier and shall carry out all modifications for satisfactory functioning during the period of field trials.

9.8 Any safety related modifications issued by IR are to be carried out by the suppliers.

9.9 System Acceptance Criteria - Acceptance Test Procedure (ATP) for each system will be submitted by the supplier and approved by the purchaser. Based on the ATP, system will be accepted.

10 Documents required from supplier The supplier shall provide the following technical documents as part of their offer.

10.1 The equipment manufacturer must provide to RDSO/Purchaser the complete details of design and drawings required for the purpose of evaluation of the design and its functionality. All documents shall be supplied in both hard and soft (PDF) copies.

10.2 LRU (line-replaceable unit) module details, if any.

10.3 In case of new or developing design, the process of design of the system clearly indicating the different stages, milestones and project duration.

10.4 Performance specification of the equipment.




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10.5 Maintenance and troubleshooting manual for all the equipment offered

10.6 Recommended list of spares for 3 years

10.7 Test protocol for testing their system for compliance of functional and technical requirement. Acceptance Test Procedure (ATP) Covering Routine Test as per IEC 60571 applicable for Rolling stock Electronics and other test methods specific for Fog Vision System.

10.8 Irrespective of the details brought out here, all information and documentation which are essential for operation, testing and maintenance of the equipment supplied shall be submitted on request of Indian Railways.

11 Warranty

The complete system with controls shall be warranted for satisfactory and trouble free operation in conformity with the standard IRS conditions. All aspects of workmanship and design shall be covered by this warranty. The supplier shall immediately provide arrangement for rectification of failures reported under warranty.

Warranty period of any equipment of the system may be extended as per mutual agreement between purchaser and supplier if the equipment has undergone major design modifications during the warranty period.

12 Marking and Packing

Each equipment shall bear for identification serial number, type, year of manufacture, manufacturer‟s name as well as important parameters/ratings.

All equipments of the complete system shall be suitably packed in strong water proof boxes to prevent any damage during transit and handling.

13 Training The supplier shall train adequate number of IR personnel in operation and maintenance of the offered System. Adequate documentation shall be provided. Personnel of Indian Railways shall be nominated to attend. The equipment manufacturers shall arrange training for operations and maintenance of the equipment, as an integral part of the equipment supply.

14 Undertaking by equipment manufacturer

Vendor shall provide a signed copy of the undertaking on “INFRINGEMENT OF PATENT RIGHTS”. The undertaking shall be as under

Indian Railways shall not be responsible for infringement of patent rights arising due to similarity in design, manufacturing process, use of similar components in the design & development of this item and any other factor not mentioned herein which may cause such a dispute. The entire responsibility to settle any such disputes/matters lies with the manufacturer/ supplier.

Details / design/documents given by them are not infringing any IPR and they are responsible in absolute and full measure instead of railways for any such violations. Data, specifications and other IP as generated out of interaction with railways shall not be unilaterally used without the consent of RDSO and right of Railways / RDSO on such IP is acceptable to them.

15 Declaration of confidentiality of submitted documents by manufacturers

While submitting a new proposal/design, manufacturer must classify their documents confidentiality declaration, such as

This document and its contents are the property of M/s XYZ(Name of the vendor) or its subsidiaries. This document contains confidential proprietary information. The reproduction, distribution, utilization or the communication of this




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document or any part thereof, without express authorization is strictly prohibited. Offenders will be held liable for the payment of damages. Indian Railways/RDSO is granted right to use, copy and distribute this document for the use of inspection, operation, maintenance and repair etc.

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Annexure-1

Annexure-2

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