Inertial Unit Automated Test and Control Solution

The Inertial Unit Automated Test and Control Solution is a comprehensive testing platform designed for inertial measurement units (IMU) and integrated inertial systems, capable of evaluating performance, calibrating parameters, and compensating errors under both static and dynamic conditions. At the core of the system is a real-time computational control platform that, combined with a high-speed real-time communication network and a three-axis turntable, completes ground calibration tasks for inertial units. The system provides self-checking, power control, signal detection, bus data acquisition, automated calibration, error compensation, and test analysis, significantly enhancing testing efficiency and accuracy.

In terms of business requirements, traditional Windows-based test systems are unable to meet the demands of high-speed, high-reliability data acquisition due to lack of task prioritization and susceptibility to malware. Moreover, conventional systems are limited to static testing and lack the ability to dynamically simulate the motion of carrier vehicles such as missiles, vehicles, or aircraft, making real-time trajectory simulation impossible. Therefore, a solution with high real-time performance, high automation, dynamic simulation capability, and rich I/O interfaces is essential.

This solution is built on the HRT HIL simulation platform, employing the VxWorks real-time operating system to ensure strong real-time performance for long-duration, high-speed data acquisition and control of inertial units. The system is highly automated, capable of performing calibration and error compensation with a single command, making it ideal for mass production and assembly-line testing. It offers rich I/O interfaces, supporting RS232/422/485, 1553B, CAN, ARINC429 buses, as well as high-speed AD/DA/DIO hardware interfaces, meeting the signal acquisition and bus communication needs of various inertial units.

Functionally, the system can perform comprehensive static testing as well as dynamic simulation validation. Static testing includes power checks, communication verification, temperature monitoring, high-speed sampling checks, static drift testing, position calibration, angular rate calibration, gyro zero calibration, scale factor stability testing, angular velocity output verification, voltage bias adjustment, random vibration testing, command current injection, parameter binding, and primary power monitoring. For dynamic testing, the system can simulate the full trajectory of carrier vehicles using Matlab/Simulink-based dynamic models, validating inertial unit outputs under real-world motion conditions.

The automated testing capability allows all tests to be executed automatically once the system configuration is completed, with real-time data recording, online monitoring, and automatic report generation, significantly improving production efficiency and data reliability.

This solution is widely applicable to inertial unit manufacturers, supporting ground-based static unit testing, parameter calibration, performance verification, and batch pre-delivery testing to ensure that every inertial unit meets design specifications and performance standards before leaving the factory.