Navigation & guidance – Security - Defence Sectors

Client's issue


Develop the software for mission preparation, simulation and analysis for a helicopter inertial measurement unit


AUSY's solution


 A project mixing Technical Assistance and a work-package with commitment to meet a deadline
 Extension of the perimeters of the initial work-package and, considering its success, the launching of other package projects 


Stakes & issues


 Parallelisation and industrialisation of tasks to meet milestones
 Putting in place and refinement of metrics to anticipate the future workload
 Taking into account numerous referential evolutions (specifications evolving every week)
 Preparation of integration phases and validation


Phase 1
Our interventions


 Navigation & guidance
     Providing helicopter's position and attitudes
     Elaborate and follow the trajectory according to choke points
     Providing the flight orders to the automatic pilot (rolling, speed, height ..)
 Expertise of anomalies detected by Eurocopter 
     On the guidance
     On the navigation
     Extension of work-package 
     Drawing up documentaries 
     Coding : navigation robustification, new guidance architecture
     Simulation and test of new GUIDANCE 
     Support for the integration of V2 guidance 
     Unit Validation 

Our tools & our skills


 Hover, MOT,…
 SRS guidance V2, OMAN
 ADA83
 MATLAB, SIMULINK
 MISMA, PCNW Sagem set of tools

 

Phase 2 : Development of 5 guidance modes for the inertial measurement unit
Our interventions


 Drawing up unitary tests          
 Coding
 Passing unitary tests  

Our tools & our skills


 ADA 83

Phase 3 : Development software for mission preparation, simulation and analysis for helicopter inertial measurement unit

Our interventions

 Interfaces systems
     Links set up : Arinc, 1553, RS 422, E/S discreet
     Display in reel time of data circulating on the links 
     Recording data in a log file
 Main functionalities : 
     Preparation : mission editor (flight plan).
 Simulation : 
     Implementation of inertial measurement unit in feedback
     Automated functioning by script
 Analysis : Log file analysis tools


Our tools & our skills


 Software with graphic interface and real time constraints (20 ms)
 System target : Windows XP (eventual port towards Linux)
 Written in C++, under Visual Studio 2005
 Use of toolkit Qt from Trolltech