VIA Technologies EPIA SN-Series Specifications download pdf (Page 73)

FASTER Engineering Model

Sunlight

readable

LCD

Canon EOS 450

Power Supply 6-32V M2-ATX-140 W [3.3-5-12 V output]

DC/DC Converter

12 V 8 V

12 V

5 V

5, 12 V

3.3, 5, 12 V

VGA

connection

USB touch

screen

Ethernet HUB

PC/104

XPC Target

RTOS

C.F

card

VIA EPIA N15000

80 Gb

USB camera control

5 V

Garmin GPS 18 5Hz

Xbow Nav420

Camera Arm

Switch

G.P.I.O camera timing

G.P.I.O arm switch

RS232 serial interface

Eth

Ground Segment

12 V/12 Ah

Pb Battery

Battery Charger

12 V

Figure 51: FASTER EM Hardware Layout

6.1.1 Sensors And Data Logger

The PC/104+ module (90 x 96 mm) act essentially as a data logger, collecting data

from different sources; is made by Advantech and is equipped with an AMD LX800R

fanless cpu (functioning at a maximum frequency of 500 MHz), a soldered module of 256

MByte of DDR RAM memory and a 10/100 PCI Ethernet interface. On board three

RS232 port and one configurable RS232/422/485 are available, together with a parallel

port which supports SPP/ECC/ECP modes [Ref (30)]. Apart from size, the PC/104+

format has several advantages with respect a standard PC ATX architecture: power

consumption is considerably lower reducing or negating thermal management issues and

they are built to function in harsh environment where vibrations and g-forces loading

must be taken into account.

As shown in the previous picture, two RS232 ports are used to acquire position and

attitude data from the Garmin GPS 18 receiver and the Crossbow I.M.U. The Ethernet

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VIA Technologies EPIA SN-Series Specifications Page 73

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