Automatic Selective Door Operating system (ASDO)

Automatic Selective Door Operating system (ASDO)

Automatic Selective Door Operating system (ASDO)

The ASDO technology maximizes safety by automatically identifying which doors are safe to be opened at each station.

THE BENEFITS OF USING ASDO

ASDO stands for Automatic Selective Door Operation or Operating system. ASDO was primarily developed to improve passenger operation at stations where the platforms are shorter than the trains.

Without ASDO, trainsets with one or several doors not facing the platform would commonly remain shut, forcing passengers to board or leave the trains through other trainsets. In addition, the selection of the doors to be opened is usually done manually, with a risk to open the wrong doors.

ASDO enables an automatic check of the train position and the platform configuration: only doors safe to be opened are released, thus enhancing passenger comfort and safety while allowing for shorter stops at stations.

 

SAFE DOOR OPENING DETECTION

The ASDO system first checks the platform configuration to ensure doors will only be opened at the right places.

Beacons are usually positioned on the tracks to inform the train about its position and about the platform configurations. Other source of information such as odometry or GPS positioning can be used to identify the stations and to determine how many doors shall be opened and on what side(s) of the train.

 

SAFETY INTEGRITY LEVEL (SIL)

ASDO is a safety critical function commonly developed as SIL-2, providing probabilistic risk reduction factor from 10-6 to 10-7.

SIL stands for Safety Integrity Level and is a concept defined in the IEC 61508 standard. For the rail industry, the CENELEC has developed the EN 50126, EN 50128 and EN 50129 standards. For more information on SIL, please visit our SIL page here.



THE Trainnet® ASDO SYSTEM IN VIDEO





EKE-Electronics Ltd
Piispanmäentie 5
02240 Espoo
Finland
Tel +358 9 6130 30

 

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