Communications System for Railway IRSE Presentation : Communications System for Railway Presented by Martin Pang ACSP(COM)

Communications System Mass Rapid Transit System (MRT) 2

MRT & LRT System Map Red Line – North South Line Green Line – East West Line Purple Line – North East Line Yellow Line – Circle Line Blue Line – Downtown Line Brown Line – Thomson East Coast Line Grey Line - LRTs

Agenda Communications System in MRT Communications System in MRT System Train-borne Video Surveillance System Communications System interface with Signalling

Why there is need for Communications System in MRT? Train Operations Emergency and Train Service Disruptions

MRT Communications System Communications System for Train Operations: Crowd control management Allow Operator to broadcast announcements, updates and advisory information. Commuter Assistance e.g. Commuter communicate with Staffs Post incident investigation Security

MRT Communications System Communications for Emergency and Train Service Disruptions Communication for evacuations, detrainment and etc. Communications to broadcast, update and provide advisory to commuters in other non-incident trains. Communications to support personnel for evacuation, recovery and resumption to normal services.

Communication for Other Government Agencies Why Communications System in RTS? Communication for Other Government Agencies Communications for security & emergency personnel in MRT stations, trains & in tunnels. Singapore Police Force Singapore Civil Defence Force

What is Communications System? RTS Communications System What is Communications System?

Basic components of a communication system What is Communications Basic components of a communication system Transmitter Receiver Medium/Channel Wired, e.g. fibre optic, copper, coaxial cables, etc. audio data Wireless, e.g. wireless LAN, Bluetooth, infra-red, microwave, cellular, etc. video

Communications System for MRT Driverless Train Operations Stations In-Train Train VSS

Station Travel Info System MRT Communications System Overview Others Depot Operation Control Centre Others Depot Others Communication Backbone Network (CBN) Typical MRT Station CBN Node OCC Radio System Track Side Leaky Coaxial (LCX) Cable Train-borne Video Surveillance System (VSS) Trackside Wireless Access Point Trunked Radio Telephone Intercom, etc. Public Address Station VSS Train-borne VSS Clock Station Travel Info System Other Systems

In-train Video Surveillance System for Driverless train Operations. RTS Communications System In-train Video Surveillance System for Driverless train Operations.

Train CCTV System for Driverless train Operations. Train-born Video Surveillance System Train CCTV System for Driverless train Operations. Video Recording – Post Incident Investigation OCC to Train – Camera Selections Video Streaming to OCC External viewing – Detrainment Train to OCC – Events trigger PEC (passenger emergency communications) Saloon door Obstruction Saloon door emergency handle switch activation Driving Console cover removal Detrainment door activation Fire extinguisher removal Smoke detector activation

Train-born Video Surveillance System OCC Fibre Optic Cable In Tunnels Communication Backbone Network

Train-born Video Surveillance System OCC Camera Selection 1) OCC to Train Camera Selection E.g. Train Nos.#36, Camera #2 Search for Train#36 Found Train#36 at Station T23 4) Send request to Train#36 and select image from cameras#2 5) Send video stream cameras#2 back to OCC

Train to OCC (Automatic Triggering) Train-born Video Surveillance System Train to OCC (Automatic Triggering) Automatic display of train-borne camera images at OCC on detection of following triggers: (a) PEC activation (b) Saloon door obstruction (c) Driving console cover opening (d) Detrainment door activation (e) Fire extinguisher removal (f) Saloon door Emergency Handle Switch activation and (g) Smoke detection

Train-born Video Surveillance System OCC Video Transmission - Handover Video signals are continuously send from train to track side APs. The TVSS Gateway (GW) will receive the video signals from the arrays of trackside APs Communication Backbone Network Fibre Optic Cable In Tunnels

Train-born Video Surveillance System Seamless Handover Seamless Handover from Station to Station will take place train wireless device established connection the AP from next stations OCC Station A Station B Network Switch AP Network Switch AP AP - Access Point Position A Position B

Train-born Video Surveillance System Front camera for Detrainment

Fibre Optic cable to tunnel APs POE – Power Over Internet Train-born Video Surveillance System TVSS Trackside Equipment LAN Cable Network switch in MRT Station Access Point with Antenna Fibre Optic cable to tunnel APs FO Cable LAN switch Power supply Cable POE POE – Power Over Internet

Communications System Interface with Signalling MRT Communications System Communications System Interface with Signalling Signalling System Public Address

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