Chapter 2. Introduction

Scream! AVD is an application used alongside Scream! to convert GCF data streams between Acceleration, Velocity and Displacement.

Scream! AVD can process GCF data:

• pushed over the Internet or a private network from any GCF/UDP source, using a configurable port number;

• pulled over the Internet or a private network from a configurable list of UDP sources; and/or

• pulled from a copy of Scream! running on the same PC.

This flexibility allows Scream! AVD to process any GCF data that could be collected by Scream!.

Scream! AVD calculates

• velocity and acceleration from displacement streams

• displacement and acceleration from velocity streams

• displacement and velocity from acceleration streams

and passes the resulting data back to Scream! as GCF streams. These can then be displayed and saved in the usual way or used by any application that accepts GCF data streams.

Scream! AVD features:

• Calculation of acceleration, velocity and displacement from GCF data streams

• Works alongside Scream!

• Outputs GCF data streams

• Simple set-up

• Runs on Windows (9x/NT/2000/XP, Vista, 7 and 8)

Scream! AVD uses UDP/IP for all data communication. If TCP sources are in use, such as networked CMG-6TDs, these data can be collected by Scream! and then processed by Scream! AVD before being passed back to Scream!

Scream! AVD pushes its output data to a configurable port on the same PC. This would normally go to a copy of Scream! but any software which accepts GCF data over UDP could be used.

For more details about integration with Scream!, please see Chapter 7 on page 15.