Integrated HIL System for Multi-Device Hardware Testing
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Solution Overview
Problem
Existing Hardware-in-the-loop (HIL) testing solutions lack a common software application for testing all functionalities of a hardware device, cannot perform testing on multiple hardware devices simultaneously, and do not focus on interoperability or testing of hardware devices across different versions and domains.
Innovation Solution
An integrated HIL system with a microcontroller unit configured to receive and decode test parameters, perform test functionalities using hardware abstraction layers, and output test outcomes, allowing for simultaneous testing of multiple hardware devices across various versions and domains.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different simulators are used for testing different functionalities of hardware devices, then testing coverage is improved, but system complexity increases
Solution Approach 1:
The patent combines multiple separate simulators into a single integrated HIL system that can test multiple functionalities through a unified platform. The system integrates hardware components (microcontroller unit, front panel, rear panel, display interface) into one cohesive device that replaces the need for multiple separate simulators, thereby reducing system complexity while maintaining comprehensive testing coverage.
Solution Approach 2:
The HIL system is designed as a universal testing platform capable of testing multiple functionalities of hardware devices through a single system. The microcontroller unit can execute different test applications for various functionalities (audio, video, communication, etc.) without requiring separate dedicated simulators, achieving multi-functionality that reduces overall system complexity.
2Adaptability or versatility
If separate software test applications are used for each simulator, then functionality-specific testing is improved, but ease of operation deteriorates
Solution Approach 1:
The system employs a single universal software application that can test multiple functionalities through different test applications. The microcontroller unit is configured with the capability to load and execute various test applications (first test application, second test application, etc.) within one unified software environment, eliminating the need for separate software for each simulator while maintaining functionality-specific testing capabilities.
Solution Approach 2:
The software is segmented into multiple test applications that can be selectively executed within a single unified software platform. Each test application targets specific functionalities (audio, video, communication), but all are managed through one common software interface, improving ease of operation compared to requiring entirely separate software programs.
3Measurement precision
If testing is performed on a single hardware device at a time, then device-specific testing precision is improved, but productivity decreases
Solution Approach 1:
The HIL system combines multiple testing capabilities into a single platform that can test multiple hardware devices simultaneously. The microcontroller unit is configured to handle multiple Device Under Test (DUT) connections through the rear panel, allowing parallel testing of multiple devices while maintaining the same testing precision as single-device testing, thereby significantly improving productivity.
Data Source
AI summary
Disclosed herein is an integrated Hardware-in-the-Loop (HIL) system and a method for testing hardware devices. In an embodiment, system comprises a front panel which may be configured to perform one or more predefined Input/Output (I/O) operations. Further, system comprises a rear panel interfaced with the front panel which may be configured to connect to a Device Under Test (DUT). Furthermore, the system comprises a microcontroller unit configured with an automated test application interface which further comprises a plurality of hardware abstraction layers required for testing hardware devices, wherein the hardware devices may include devices of invariant domain and invariant version.