ADS2 for Aerospace
Model Based Test Driven System Integration Platform
The Aerospace Onboard System Development Process is guided by SAE ARP4754A. It consists of multiple levels of specification, design, validation and verification and is distributed between OEM and multiple suppliers of systems, subsystems and components.
Due to the complexity of the development process, a consistent platform supporting model based validation, virtual and physical integration as well as requirement based verification at each level is of great importance for the industry.
ADS2 software product family developed and continuously improved during the last 30 years by TechSAT has become the leading product to face the challenge of the system integration complexity.
Overview
ADS2 software modules combined with various third party tools and Hardware components provide a Consistent Integration Platform for complete system development life cycle, i.e., from PC based Model-in-the-Loop environments to large scale aircraft level system integration and verification in the aerospace industry.
Using ADS2 based systems during the different process steps simplifies communication between the corresponding teams and allows them to easily share common artefacts like ICD, Models, Test Cases and Test Results.
Sharing artefacts and better cross level team work is essential for an efficient development process which will result in improved maturity systems together with cost and schedule optimization.
Virtual Integration
Early Requirements Validation Early Function Integration Early ICD Development
Model-in-the-Loop
The Model-in-the-Loop configuration is used to perform functional verification of a model in the context of a simulated environment.
The Model-Under-Test for such a scenario could be:
- A system behavior model of a system or subsystem used for virtual integration with other system models.
- A mathematical model of a mechanical, hydraulic or electric subsystem, used as plant model for verification of the respective control law.
- Implementation models of LRU hardware, logic or software
For all such cases, the Model-under-Test, the environment model, an automated test executor as well as tools for visualization, monitoring, recording, etc. are linked through the ADS2 Core as middleware.
Software-in-the-Loop
The Software-in-the-Loop configuration is used to perform host based functional verification of a software module in the context of a simulated environment.
Onboard software is often using the ARINC-653 standard as the interface to the platform software (RTOS).
For a Software-in-the-Loop scenario, the Software under Test on top of an ARINC-635 adapter, the environment model, an automated test executor as well as tools for visualization, monitoring, recording, etc. are linked through the ADS2 Core software as middleware.
In some cases, the Software under Test has another platform interface incompatible to ARINC-653. In such cases a suitable interface adapter can be created using the ADS2 native APIs.
Virtual System Integration
The Virtual System Integration is used to integrate functional modules of a system represented either by software modules or by simulations together with a simulated environment.
For this, ARINC-653 compatible software, non-ARINC-653 software modules, system component simulations, environment models, an automated test executor as well as tools for visualization, monitoring, recording, etc. are linked through the ADS2 Core software as middleware.
Virtual Integration
Project Example
Equipment Level Integration
Easy HW/SW Integration Early Target Based SW Testing Enhanced LRU Qualification Testing
Equipment Level Integration
TechSAT Single Device Integration Bench (SDIB) is used for LRU / Equipment level integration and verification of a single UUT.
For this scenario, the test system is connected to the UUT through its I/O hardware interfaces which are simulating the sensors and actuators connected to the UUT as well as the communication interfaces of other LRUs communicating with the UUT.
The I/O, the environment simulation, automated test executor as well as tools for visualization, monitoring, recording, etc. are linked through the ADS2 Core software as middleware.
All TechSAT SDIB product family has the same system architecture and are variant from IO types of Unit under Test.
Equipment Level Integration
Project Example
System Level Integration
Three Decades Experience Hundreds of Benches Worldwide Solution with Deep System Understanding
System Level Integration
For system level integration and verification, TechSAT provides the customer with customer tailored System Integration Bench to integrate and verify a complete system with all items connected in a representative way, with simulated external sensors and simulated communication with other systems.
The ADS2 I/O Interfaces are used to simulate sensors and actuators connected to the UUT as well as the communication interfaces of other systems communicating with the System under Test.
All System Integration Bench elements, i.e. environment simulation, system I/O, automatic test execution as well as tools for visualization, monitoring, recording, etc. are linked through the ADS2 Core software as middleware.
ADS2 supports a very wide range of analog, discrete and bus IO interfaces. It also supports software controlled switching between real and simulated LRUs as well as complex multi system scenarios where parts of the system are usable as individual system benches or as one integrated multi-system bench.
We have a long history in delivering System Integration Benches to many major aircraft programs in the last three decades. Past projects include Airbus A320, A330/340, A380, A400M, A350, Eurofighter Typhoon, Eurocopter Tiger, KAI T50, COMAC C919, AVIC MA700 and UAC MS21.
The integrated and verified on-board systems including
- Environment Control System
- Cabin Communication System
- Cabin Pressure Control System
- Information System
- Flight Data Recording System
- Electrical Power Distribution System
- Fuel System
- Water & Waste System
- Mission Control System
- Defence AIDS System
- Navigation & Communication System
- Cockpit Display System
- Central Maintenance System
- Flight Control System
- IMA System
- Avionics Integration System
- Avionics Data Communication Network System
- Engine Control and Monitoring System
- Brake Control System
- APU System
- Cargo Door System
- High Lift System
All SIBs are based on the ADS2 SW platform combined with dedicated HW components.
System Level Integration
Project Example
Aircraft Level Integration
Proven Technology Unlimited Scalability Configuration Flexibility
Aircraft Level Integration
Aircraft Level Integration Facilities are used to integrate all systems of an aircraft for fully integrated lab test (MOC4). For large aircraft the Aircraft Level Integration is typically performed by functional domains (e.g. Avionics, Flight Control, Cabin, High Lift, Landing Gear) where domain level labs can be used separately or interconnected for full aircraft integration.
ADS2 supports the integration of environment simulations, automatic test execution, monitoring and recording of all communication busses and sensor data as well as mechanical/hydraulic load simulation and facility control.