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Turnstile Monitorng and Control
Application: Public Transportation Turnstile Monitoring
and Control
Quatech Products Used: DSU-100
2 Port USB to RS-232 Serial Adapter
In addition to farecard kiosks, public transportation systems also include
turnstiles that can read the farecards generated by the kiosks. These
turnstiles also typically contain an embedded computer, as show in the
above drawing, that provides USB expansion ports. They also contain a
card reader/writer that can read and update paper farecards as well as
Smartcards (fare cards that are typically work across a wide range of
transportation systems and that are "filled" with funds by the
consumer via phone or e-mail and linked to a bank account or credit card
account). The embedded computer is linked via Ethernet to a back office
server that validates the cards and records starting point on entry and
deducts the appropriate fare on exit. Once the card is validated and charged,
the turnstile receives a signal to open the gate, which is accomplished
with a gate-release mechanism that is connected to the embedded PC via
the DSU-100's second serial port.
Other Kiosk Applications:
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