REVISTA ROMÂNĂ DE AUTOMATICĂ - IPA SA

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• business intelligence applications: b1)
multidimensional analysis applications
for the ticketing system; b2) OLAP
reports for decision support.
3. Tehnical description
3.1 The ticketing system
The ticketing system implements the travel
cards in keeping with different transport
requirements. The structure of the travel card
is complying with the European standard
ENV 1545 regarding the transport data, but
simplified according to the specific of the
national public transport services. The
ENV1545 standard defines the codification of
the specific data elements for public
transport (the transportator, the validation
transaction, history, a.s.o).
For card implementation the project used
plastic-based Mifare Philips Classic 1K and
paper-based Mifare Philips Ultralight
contactless cards.
As for the contactless card the standard in use
is ISO 14443-1,2,3,4, which establishes a
data transsmision up to 10 cm at a 13,56 MHz
operation frecquency. Within the present
standard there are 2 sub-types of contactless
cards, depending on the modulation method:
• Type A (from Mikron, Philips, Siemens)
• Type B (from Motorola, SGS Thomson)
Starting from ISO 14443-A standard it was
created the industrial standard MIFARE
(Philips registered mark), both for contactless
cards and for dual interface cards. This
standard is at present the most used RF
technology for data communication between
a contactless card and a reader.
Within the project the following travel cards
were implemented:
• Limited-use tickets (using Mifare
Ultralight cards): for 2 or 10 travels
or for one-day travel;
Reusable cards (using Mifare Classic 1K cards):
driver and inspectors cards, one-month cards,
free travel cards.
REVISTA ROMÂNĂ DE AUTOMATICĂ
It was implemented a flexible travel
payment system based on user profile -
students, elder people, ordinary travellers,
and also a fidelization system based on
usage criteria and collected card points.
The board computer (the driver master
console) it is implemented using a portable
computer at which were connected 2 contactless
card validators, a GPS/GSM modem and it was
used the internal Wi-Fi adaptor.
The validators are controlled by the master
console using a RS485 interface and a
master/slave protocol. The validators are
equipped with a graphic display, 3 lights and
a sound system for display and
communication of text, visual and auditive
messages regarding the status of the card
being validated. The processing and storage
of the validation transactions is performed
“online” by a specialized application in the
master console, not by the validator which
has a limited processing capacity.
At the vehicle depot it is implemented a
WLAN (WiFi LAN) consisting in the local
Ethernet network, an Access Point and 2
workstations equipped with wireless adaptors.
The card issuing system is implemented using
USB 2.0 desktop contacteless readers ARC
1003 which is multi-standard and offers a 2-
light signalization: RED: power/error;
GREEN: data transfer.
The issuance transactions are locally stored
using a Microsoft Access 2003 database.
Figure 3 ARC 1003 Contactless reader