STATUS AND UPGRADATION PLAN OF RTH NEW DELHI AND TELECOMMUNICATION NETWORK OF IMD N.K.Pangasa

STATUS AND UPGRADATION PLAN OF

RTH NEW DELHI AND

TELECOMMUNICATION NETWORK OF IMD

N.K.PangasaDirector

RTH New Delhi

GTS Links with RTH New Delhi

RTH NEW DELHI

Tokyo IP-VPN

MoscowIP-VPN

Beijing IP-VPN

Melbourne Soc(Int)

Oman Soc(Int)

Male Soc(Int)

Jeddah 64Kbps Soc(IP)

Karachi 64Kbps Soc(IP)Dhaka 64Kbps

Soc(IP)

Colombo Soc(Int)

Cairo 100bauds Under testing for 64Kbps

Tehran 75 bauds Ordered for 64Kbps

Kathmandu 50 bauds

Yangon 50 bauds

Bangkok 200 bauds Ordered for 64Kbs

Recent Developments at RTH New Delhi

Table Driven Code Form: RTH New Delhi is transmitting daily Synop (on test basis) and SATOB messages of Indian Region in BUFR Format (Developed by IMD) to Tokyo through GTSDigital Satellite Broadcast of IMD through Asia Star satellite has been changed to multicasting File naming server installed is providing data to users through TCP/IP Socket, E-mail, SMS and FTP in WMO File naming conventions. It has also feature of OCR (Optical Character Recognition) to extract information from imageries.GMDSS bulletin is also placed on IMD website in real time.

Proposed RTHFeatures

High Availability (more than 99.9%)Cluster ModeDuplex Web, E-mail and FTPConversion from CREX, BUFR, GRIB to ASCII and vice versaAudio visual Alarm for warning messagesMessage reception through PSTN/Dial-up and SMSTransmission of warnings through SMS to predefined numbers.File switchingOCR base FAX transmission and receptionAuthentication server for Internet usersBilingual features (English and Hindi).Daily throughput of data -- 100 GB.GUI base interface and web interface.

Back

RTH, At New Delhi

AMSS At 6 locations

(4 old +2 new)

VSAT Network

64 kbps Terminal

IVRS

Data Terminal At 75 Observatories

Internet

At 26 MCs

Common

People

International Network

Ongoing Modernization Projects of Telecom Division

64 kbps – 2 mbps Link

PSTN/Dial-Up Link

Mobile/SMS Link

VSAT Link

Internet Link for E-mail & FTP

VPN Link

Main Flow of Data

( At 26 Locations )( At 26 Locations )

Data Terminal

Features: The system will be PC (P-IV) based. The system can connect to Data

Collecting Centres (64 kbps terminal) using PSTN/Dial-up link for submission and retrieval of data.

It also supports transmission and reception of messages via GSM based GPRS or SMS.

The system can transmit and receive messages via E-mail, FTP and FAX.

The system has browser based GUI for data handling/manipulation, submit and retrieve meteorological messages.

BackData Terminal At Observatories

Data Terminal Locations

( At 75 Observatories/Field Stations )

Proposed AMSS

FeaturesHigh Availability (more than 99.9%)Cluster ModeDuplex Web, E-mail and FTPConversion from CREX, BUFR, GRIB to ASCII and vice versaWMO as well as AFTN switchAudio visual Alarm for warning messagesMessage reception through PSTN/Dial-up and SMSTransmission of warnings through SMS to predefined numbers.File switchingOCR base FAX transmission and receptionAuthentication server for Internet usersBilingual features (English and Hindi) Daily throughput of data -- 50 GB.GUI base interface and web interface.

Back( Existing 4 at Kolkata, Mumbal, Delhi and Chennai

and 2 new at Guwahati and Nagpur )

VSAT

VSAT:All the VSATs are inter connected with each other as well as RTH, New Delhi.

The VSAT system will be connected to PC through Ethernet Port.

All the VSAT systems will have access to Internet.

Standard Internet software packages such as E-mail, FTP and Web will be used to connect to remote nodes of VSAT, AMSS, HQ etc.

Back

VSAT Locations

( At 26 Locations )

64 Kbps Terminal

Features: The system will be PC (P-IV) based. Standard TCP/IP based socket

communication for transmission and reception of messages.

Retrieval and submission of messages through PSTN/Dial-up network.

Submission of messages through SMS. Transmission and reception of messages

through E-mail in English and Hindi. Web Interface. GUI based module for submission and

retrieval of data.

Back

64 kbps terminal Locations

( At 27 Locations ) 64 kbps Terminal

IVRS

Features: The system will receive WMO formatted

messages and decode these messages to weather parameters for answering weather queries by public.

The system shall interact with caller in English, Hindi and at least one Regional language of that place where it shall be installed.

The system will work with all type of exchange used in DOT/MTNL/BSNL etc. including Mobiles.

The system will operate round the clock with 99% uptime.

The system shall have provision to transfer the call to the duty officer in case the caller query is not available in the database.

No single point of failure. GUI based administration modules. Voice messages will be recorded by

professionals.

Back

IVRS Locations

( At 26 Locations ) IVRS

Present Setup of IMD Communication

* SINGLE PATH VIA GROUP OF NODES.

* DELAY DUE TO MULTIPLE HOPS COVERAGE.

* MODE OF COMMUNICATION: TP/TELEX/TELGRAMS/HFRTCOSTLY.

* OLD AND OBSOLETE TECHNOLOGY.

85

385

Need for Modernization

DEPT. OF TELECOM IS WITHDRAWING TP/TELEX LINKS AND HAS ALREADY WITHDRAWN FROM MANY PLACES.

DATA THROUGH TELEGRAMS REACHING VERY LATE.

HFRT (HIGH FREQUENCY RADIO TELEPHONY) IS OBSOLETE TECHNOLOGY AND WORLD WIDE BEING REPLACED WITH LATEST TECHNOLOGIES AVAILABLE LIKE SMS THROUGH MOBILE AND EMAIL SERVICES.

VPN IS LATEST TECHNOLOGY WITH ADVANTAGES OF CONNECTIVITY BETWEEN ANY TO ANY IN COMPARISON TO DEDICATED LINKS WHICH IS CONNECTIVITY BETWEEN ONLY TWO ASSIGNED LOCATIONS.

VPN LINKS ARE SECURED AND COST EFFECTIVE LINKS.

MOBILE DATA TERMINALS WITH ADDITIONAL DIAL UP MODEM IN BUILT UTILIZES DATA EXCHANGE THROUGH SMS, EMAIL AND DIAL UP CONNECTION.

SMS AND EMAIL UTILIZES SIMULTANEOUS TRANSMISSION TO MULTI NODES THUS DATA AVAILABILITY AT AMSS AND RTH ARE VERY FAST.

AT PRESENT IVRS SYSTEM IS AVAILABLE ONLY IN FOUR METROS. AS A PUBLIC WEATHER SERVICE IVRS SYSTEMS ARE REQUIRED TO BE AVAILABLE AT ALL MET CENTRES.

AS PER WMO REQUIREMENTS RTH IS REQUIRED TO EXCHANGE BINARY DATA IN BINARY UNIVERSAL FORM (BUFR) FORMAT, IMAGERIES AND WEB PAGES WHICH ARE AT PRESENT NOT SUPPORTED BY OUR EXISTING SYSTEM.

REQUIREMENT OF AMSS SYSTEM AT NAGPUR AND AMSS MODERNIZATION AT GUWAHATI.

1.SIMULTANEOUS EXCHANGE OF DATA WITH MULTIPLE NODES

2. REAL TIME DATA EXCHANGE.

CATEGORY-I 85OBSERVATORIES WITH MULTIPLE OBSERVATIONAL FACILITIES.

CATEGORY-II 385 OBSERVATORIES WITH LIMITED OBSERVATIONAL FACILITIES.

CATEGORY-III 26REMOTE OBSERVATORIES IN MOUNTAIN, DESERT AND

OTHER INACCESSIBLE AREAS.

Technology for modernization

VPN (VIRTUAL PRIVATE NETWORK) LINKS.

HIGH SPEED LINKS.

SMS THROUGH MOBILE SERVICE.

EMAIL SERVICES.

DIALUP CONNECTIVITY FOR DATA RETRIEVAL AND SUBMISSION

VSAT LINKS AT COASTAL/DESERT AND MOUNTAIN AREAS.

SATELLITE BASED DIGITAL DATA BROADCAST AND ITS RECEPTION.

INTERACTIVE VOICE RESPONSE SYSTEM (IVRS) – A PUBLIC WEATHER SERVICE.

DATA RECEPTION THROUGH WEB INGEST