LRU Hardware-in-the-Loop Test System

Engineers have less time for system validation because requirements are constantly evolving as designs are finalized. As line-replaceable units (LRUs) become more complex, engineers must develop test systems with limited resources, time, and budget. It’s time for a better approach to validating software—one that embraces requirement changes and empowers teams to create agile, modular HIL test systems that can be leveraged across the product’s life cycle and scale to system integration labs.
 

  • Maximize reuse of existing model IP with COTS test system software and hardware
  • Replace point-to-point wiring with standard cables and connectivity scheme
  • Complete test coverage through signal conditioning, avionics bus communication, real/simulated signal switching, model-based simulation, and fault insertion
  • Adaptable approach for custom signals and unique sensors

LRU Hardware-in-the-Loop (HIL) Test System

  • Capture measurements, data, and messages from communications buses with PXI
  • Reuse modular signal conditioning, fault insertion, I/O simulation, and standard cabling between test systems with NI Switch Load Signal Conditioning (SLSC) hardware
  • Integrate models from the environment of your choice, including MathWorks Simulink® software, with VeriStand on NI Linux Real-Time
  • Account for custom capabilities with PXI FPGA and LabVIEW-programmable FPGA
  • Build, deploy, and automate your real-time validation test system with TestStand test management software

Solution Advantages

“We chose an NI HIL test system because it is built on open, standard platforms that allowed us to reduce the overall cost of test and the long-term maintenance and ownership of our hardware. It also allowed us to customize the system to our exact needs, increasing the speed at which we could find and fix embedded software defects while integration testing LRUs for our Gripen fighter.”

–Anders Tunströmer, Technical Manager, Saab Aeronautics

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Services and Support

NI works with customers throughout the life of an application, delivering training, technical support, consultation and integration services, and maintenance programs. Teams can discover new skills by participating in NI-specific and geographic user groups and build proficiency with online and in-person training.

LRU Hardware-in-the-Loop Test Solution Brochure

Learn how NI is empowering test teams to deliver test systems earlier than expected for less money with an agile approach to HIL test.