VIA Technologies EPIA SN-Series Specifications download pdf (Page 71)

FASTER Engineering Model

Despite these requirement relaxations, the result is compliant with the initial idea of a

functioning test bed able to guarantee sufficient performances in order gain experience in

the process of realization of the final system.

In order to proceed to the definition of the system, a functional block diagram of the

airborne internal management and computing system has been drawn and is shown in

Figure 50. The unit is managed by the Data Acquisition and Camera Timing block which

receives position and attitude data respectively from the G.P.S receiver and the Inertial

Measurement Unit. The camera arm switch controls the image acquisition mode and is

activated by the pilot once overflying the target area. If the camera switch is armed the

unit sends to the acquisition devices an appropriate electric signal controlling the shooting

mode. The entire flight plan (list of 3-Dimensional waypoints) is loaded before flight

directly from the ground segment infrastructure, using the flight planner described in

Chapter 4.

The flight plan is presented to the pilot using the “tunnel in the sky” visual interface,

which through a geometrical interpolation of the reference waypoints, displays the pre-

computed trajectory.

Data Acquisition Unit &

Camera Timing

G.P.S

Receiver

I.M.U

Camera Arm

Switch

Pilot Visual

Interface

Camera

Parameters

Controller &

Storage

Camera

Flight Plan

Pilot

Shoot Control

Data Download (images)

Camera Setup

Position

Attitude

On Target Camera Arm Signal

Pilot I/F Data

Ancillary Data

Ground Segment

Georeferenced

data

Camera Computed

Setup

Flight Plan Management

Figure 50: Airborne internal management and computing system functional layout

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VIA Technologies EPIA SN-Series Specifications Page 71

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