Amazon Kindle D00111 Manuale Utente Scaricare il pdf (Pagina 60)

RF Transceiver

Chip

May not be required as

it could be inbuilt in

the CPU however,

Carrier frequency:

ISM-range and

Minimum Data

transfer rate: 212

Kbps

Maxell (coil-on-chip

RFID Me-Y2004)

Atmel

RFID Me-Y2004

RAM May not be required as

it could be inbuilt in

the CPU however,

Size: Minimum 1K

Atmel See CPU

Speaker

A Small Speaker just for

Beep

Cost

http://www.casauto.com.tw/contents/products2.asp?minicidx=24&SN=27

Suppliers cost list is as follows

With SDK is 1471 SEK (229 USD), without SDK 1086 SEK (169 USD)

Without SDK 777 SEK (121 USD) http://www.motechno.com/acr-

120.0.html

SDK 1150 SEK (179 USD) http://www.acs.com.hk/acr120sdk.asp

Block Diagram of Central Control System and the Bus Stop Module

Figure C 3

Figure 3 shows a simple interaction between Central control Station and all the nearest bus stops.

Working:

• The Central Station broadcasts all the dynamic information, which is then received by

all the nearest bus stops. The bus stops act like booster stations they amplify and re-

transmit the signals to neighboring bus stops.

• The card holders in the vicinity of RF-signal will pick the dynamic information

depending in which mode a card holder is, by that we mean if a card holder has

pressed the on-card button two or three times.

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Amazon Kindle D00111 Manuale Utente Pagina 60