Read more at http://www.channelnewsasia.com/news/singapore/smrt-train-collision-due-to-inadvertent-removal-of-software-9408766
(Updated: )
Ricky Lim ·
Seems like Thales new signaling and control system - is not properly put in place for the 2 MRT train that trigger the collision.
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Ricky Lim ·
Wonder a backup redundant system - such as sonar, sensor, rf or location-based system to trigger emergency brake is needed to complement this Thales new signaling and control software?
If this software fail, the backup redundant system can kick in and trigger the emergency brake.
If this software fail, the backup redundant system can kick in and trigger the emergency brake.
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Ricky Lim ·
A simple system to implement :-
(1) calculate the distance, mass, velocity (speed) - between 2 MRT trains - and the likely MTBI (Mean Time Before Impact) - using various means such as location based system, sensors, sonar, rf etc.
(2) have an IP interface to the various mechanism - and pipe the meta data back to the backend for computation.
(3) If the safety distance is breached, trigger emergency brake.
(4) This can be a system complementing the Thales signal and control software (if it fails).
(1) calculate the distance, mass, velocity (speed) - between 2 MRT trains - and the likely MTBI (Mean Time Before Impact) - using various means such as location based system, sensors, sonar, rf etc.
(2) have an IP interface to the various mechanism - and pipe the meta data back to the backend for computation.
(3) If the safety distance is breached, trigger emergency brake.
(4) This can be a system complementing the Thales signal and control software (if it fails).
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Ricky Lim ·
This are IoT technologies that are easily available - and are used in more tricky situation such as driverless cars - maneouvering complex road situation.
MRT trains - stop between one another - is a much more simple environment for such IoT to work - ie to trigger the emergency brake if Thales signaling software fails or did not kick in.
MRT trains - stop between one another - is a much more simple environment for such IoT to work - ie to trigger the emergency brake if Thales signaling software fails or did not kick in.
Ricky Lim ·
Ie, if software did not work or not in to work,
IoT hardware take over. -- this become a failsafe, failsoft mechanismv.
IoT hardware take over. -- this become a failsafe, failsoft mechanismv.
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James Lee ·
I was curious and so I wennt to the Twitter feed of London Underground. They also seems to face daily train faults. Nonetheless engineering should be able to solve this
John Chang ·
Works at NTUC Income
yes, in other western countries train faults are common but they close the whole line and there are other parallel lines serving 2 same cities
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