Taipei Metro goes IP, with industrial-grade durability

Taipei Metro goes IP, with industrial-grade durability

Averaging 1.6 million passengers per day, Taipei Metro is one of the busiest transportation systems in Asia, and has become an important driver for business and lifestyle in the island nation. In addition to ensuring smooth and reliable operations, the Taipei Rapid Transit Corporation keeps an watchful eye on the security and safety of its riders. Therefore, in 2010, the rolling stock IP surveillance system was implemented on Taipei Metro carriages to record videos, as well as provide live view to each train driver. This enabled recording of live video images which could be used as evidence upon necessity, thereby increasing security for passengers.

Unlike legacy analog cameras and DVR systems, the on-board CCTV system on the Nangang-Banqiao-Tucheng Line uses the newest IP CCTV system with IP cameras and network video recorders (NVR). This system enjoys the benefits of an open network architecture, which enables live view and recording of videos not only in the metro trains, but also in remote sites such as stations and Operation and Control Centers (OCC).

System Requirements
* Completed IP CCTV system
* All the on-board equipments need to be compliant with IEC60571 and IEC62236-3-2 (EMC)
* Minimum video resolution of 1.3 megapixels
* Hardware design must be suitable for installation on a carriage environment

Business Benefits
* Wide selection of IEC 60571 compliant IP cameras, network switches and NVR products to facilitate a reliable onboard surveillance application
* Ruggedized Full HD IP Camera guarantee outstanding image quality for CCTV systems.
* Fanless hardware design to ensure reliable operation on metro trains and extend the operation MTBF.
* Successful reference sites for railway onboard communications around the world

System Description
Taipei MRT required a high-performance and reliable on-board IP CCTV system able to meet the critical EMC, vibration, physical protection requirements in metro trains. Therefore, Moxa's IEC 60571 compliant IP CCTV equipment, including IP cameras, network switches, and NVRs were selected for this on-board IP CCTV system.

Moxa provided three kinds of IP cameras for this on-board CCTV system.

* VPort 16-M12 series – ceiling-mounted, dome-type IP camera for carriage surveillance
* VPort 26A series – ceiling-mounted, low-illumination, dome-type IP camera for surveillance in the driver's room
* VPort P06HC series – hidden-type IP camera for the intercom system

All three IP cameras conform to ONVIF? standards, meet the rugged EMC, temperature, vibration and shock design requirements of IEC 60571, support Full-HD, 1080P (1920 x 1080) resolution for large images, and are equipped with the newest sensor chip for high-quality images. In addition to IP cameras, Moxa also provided customization in the hardware and form factor design based on requirements set by TMRT for IP cameras that are visible to passengers.

Moxa also provided two NVRs.

* V2416 – for local video recording in the carriage
* V2616 – for video recording, live display, and system management in the driver's room

These NVRs come with a patented anti-vibration kit, two 2.5-inch hard disk trays that have passed the IEC 61373 vibration test, and are hot-swappable for easy and simple hard disk installation and maintenance.

As the IP-based communication backbone, Moxa's TN-5516-8PoE Ethernet switches were deployed throughout the whole metro transit system, powering the IP cameras through PoE ports, and enabling wider bandwidth through port-trunking function.

Moxa Products Used in this Project

On-board IP cameras (VPort P16-2MP-M12, VPort P26A-2MP-M12 and VPort P06HC-2MP-M12)
* Up to 1920x1080 (Full HD, 1080P) video resolution
* IEC60571 and IEC62236-3-2 compliant
* ONVIF Porfile S conformance
* DynaStream? supported for maximized network efficiency

On-board NVR (V2416, V2616)
* 2 hot-swappable hard disk tray passed IEC61373 vibration test with 2.5” hard disk
* IEC60571 and IEC62236-3-2 compliant
* ONVIF NVC conformance

On-board Switch (TN-5516-8PoE-48)
* M12 Managed Ethernet switch
* IEC60571 and IEC62236-3-2 compliant
* 8 PoE ports for powering IP cameras

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