Amazon Kindle D00111 Manuale Utente Scaricare il pdf (Pagina 59)

Figure C 2

The module above depicts the manager payment system for the pre-paid cards. The upper part

of the diagram shows the interaction between the contactless information transfer and the pre-

paid card. The lower part of the diagram shows the old magnetic strip system, which is kept

here for compatibility with the present slot machines in the buses cum trains.

E-Traveling Card-issuing mechanism is as follows:

• For a user who wants to buy a new pre-paid traveling card the service manager will

issue the card via existing payment method, which is represented by “Existing

Module” arrow in figure 2.

• The officer will use the contactless module (New Module) to transfer a copy of a

static timetable for three routes of the user’s desire from the PC to the card.

• The information will be written in the card from the PC to RF reader/writer via USB

cable, and then from RF reader/writer the information flows to the RF chip of the

card.

NOTE: Further enhancement can be done by writing the payment information in both the

card’s memory as well as the magnetic strip, so depending on the technology inside the bus

both systems will work. The aim is that in the near future when all the buses cum trains slot

machines are replaced by contactless modules the magnetic strip reader will not be required.

The table below contains specification for the new RF-Manager module only

SpecificationTableforManagerPaymentModule

Required Components Available Components Suggested

Components

USB Controller Data Transfer Rate:

Minimum 1.5 Mbps

MAXIM: MAX3421E MAX3421E

CPU

(Microcontroller)

Speed: Minimum

16MHz

Atmel, DALLAS,

freescale, Hitachi

Atmel ATmega16

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Amazon Kindle D00111 Manuale Utente Pagina 59