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Test and Validation

CIMS Engineering & Systems GmbH offers the development of dedicated testequipment.
A few examples are listed below

CIMS Data Link / Processing Analyser

A toolset for the performance analysis of aeronautical tele-communication networks e.g. for X.25/ARINC 429 Williamsburg based ATN communication networks.

Details

CIMS Digital Recording & Analysis System

A long term signal recording and analysis facility for Radar signals.

Details

Aerospace

Our activities address both space and aircraft applications and include:

Flight software for spacecraft Control & Data Management Systems
Studies related to spacecraft space-ground and aircraft air-ground Communication
Engineering Support with respect to Technical Concepts, Trouble Shooting, Trials & Test Evaluation, Systems Engineering...
Software development for Inter-Subsystem Communication (e.g. Mil 1553 B, ARINC 429)
Provision of expertise for Aeronautical Data Communication Applications (e.g. Aeronautical Mobile Satellite Service AMSS, SSR Mode S data link, VHF data link Mode 2 & 4, ATN)
Specification of avionics communication equipment for ATN Subnetworks (e,g, SSR Mode S)
Development of Test and Validation equipment

Inter-Subsystem Communication

An example of our software development capabilities is the development of the Mil-1553 interface of a propulsion subsystem of a spacecraft.

The purpose of this Mil-Bus interface was to receive commands from a central Data Management Computer and to provide subsystem house-keeping data to it.

The actual Mil-1553 physical and protocol interface was implemented by a dedicated Mil-1553 controller hybrid together with the related driver software developed by us.

Key activities of our contract were (i) the identification of the required configuration parameters needed to set-up the hybrid, (ii) to test the hybrid's integrity during power up sequence and, (iii) during normal operation, the provision of functions to the subsystem software to poll for particular commands and to store housekeeping data at dedicated subaddress locations.

Also the Illegalization of commands had to be performed during operation.

The software was designed according to the subsystem specification and the related tight Interface Control Documents. The driver software was written in ANSII C to be executed on an 8051 compatible micro-controller of the subsystem. The software was tested extensively on module level by means of dedicated module test software in conjunction with a Mil-Bus tester. The testing was recorded in detailed Test Record Sheets.

After a stringent development schedule of only 3 months the software could successfully be integrated with the remainder of the subsystem software by our customer.

Our software development skills include ANSII C /C++, Visual Basic, Assembly Language(various microcontroller projects based on 8051, ATMEL AT90Sxxxx architectures have been performed).