Thanks for unlocking this thread, jcqh! 
Two paragraphs on Titan Fare Gates quoted from SMRT's 04
April 2010 press release Pages 10 and 13 respectively:
For added passenger safety and security, SMRT developed the
Titan Gate, a state-of-theart rail product that features
neural-logic intelligence, which enable the built-in
sensors to differentiate between human and inanimate
objects. This results in highly accurate detection,
increasing throughput of passengers and passenger safety by
minimising cases of passengers being hit by gate barriers while
maintaining high security such as the detection of tailgating. The
well-thought through design also takes into consideration
maintenance and environmental factors that are aligned with SMRT’s
commitment to protecting the environment and ensuring high system
availability. Titan faregate is now on trial at Somerset MRT
Station.
Developed by SMRT, the Titan fare gate system is expected to
save up to 10% in energy consumption due to
in-built eco-friendly features such as low energy LEDs,
energy-saving LCD displays and low energy servo-motors.