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Hardware-in-the-loop (HIL) simulation, also known by various acronyms such as HiL, HITL, and HWIL, is a technique that is used in the development and testing of complex real-time embedded systems. HIL simulation provides an effective testing platform by adding the complexity of the process-actuator system, known as a plant , to the test platform.
Jul 4, 2024 · Hardware-in-the-loop testing connects a controller to a test system simulating the operation of an assembled product in real-world conditions. This approach allows test and design iteration to take place as though devices were operating in the field alongside other components.
Mar 24, 2022 · Hardware-in-the-loop (HIL) is a method of testing complex software systems on test benches that receive data inputs from physical devices such as radars and cameras.
- Creating Simulation Models
- Hardware Integration
- Test Case Execution
- Data Collection and Analysis
- Iteration and Test Reporting
Simulation models mimic the system’s software components’ behavior. These models provide artificial signals that simulate the software’s inputs and outputs. The simulation models are created using specialized software programs, and they’re intended to faithfully replicate the behavior of the actual system under various operating circumstances.
The HIL testing equipment is connected to hardware components, such as sensors, actuators, controllers, and other devices. The hardware must be interfaced with the HIL testing platform, which serves as the main control system. The connections may consist of communication interfaces, analog and digital inputs and outputs, and any interfaces necessar...
The test cases are run while integrating the hardware and simulation models. The activity of the software components is mimicked by the simulation models, which provide artificial signals that activate the actual hardware. These signals are received by the hardware components, which then produce outputs that are monitored and transmitted back into ...
Data from the hardware elements and simulation models are gathered and examined during the test. This entails keeping track of and recording the hardware’s responses, contrasting them with the expected behavior, and spotting deviations or anomalies. Data analysis tools and algorithms assess the system’s functionality, interactions, and performance ...
After the test execution, the findings are recorded in a test report. The report includes information about the test cases, measured data, analysis findings, and any concerns or suggestions that were found. The system design, simulation models, or test cases are modified or improved as necessary due to the findings. To improve the system and ensure...
May 27, 2020 · In this article, we reviewed the concept of hardware-in-the-loop testing and how it differs from both the manual and automated testing. We also reviewed the benefits of adopting hardware-in-the-loop testing and how to assess whether it’s really what the user needs.
Hardware-in-the-loop (HIL) simulation is a technique for validating your control algorithm, running on an intended target controller, by creating a virtual real-time environment that represents your physical system to control.
Hardware-in-the-loop (HIL) testing is real-time simulation that lets you begin testing your embedded code without needing system hardware. This lets you test for abnormal and fault conditions that may damage hardware if the code under development does not operate within specifications.
