MaxSign Auto: Full Vehicle OTA Test

Auto, the automotive OTA test software developed by General Test, is a professional industrial vehicle-level measurement software. With modular design and integrated independent patented technology, it meets the automotive measurement requirements for high precision (better than 0.1°) sampling, and is the industry’s leading industrial-grade automated intelligent networked vehicle OTA testing software.

# 01 Integrated patents, Comprehensive functionality

The integration of General Test’s proprietary “睿测®️ Rapid Test Technology” and “Radiated Two Stage” (RTS). The innovative use of RSSI metrics in SISO testing significantly reduces test time compared to traditional measurement methods, while the patented “Radiated Two Stage” algorithm for MIMO testing solves the technical challenges of the multi-probe method in the 5G band, reducing test costs and improving test efficiency.

Supports international test standards and measurement metrics such as 3GPP and CTIA, including antenna metrics such as directional map, gain and efficiency, RF metrics such as TRP, TIS, EIRP, EIS and Desense, and performance metrics such as MIMO throughput rate.

  • Angle-specific sensitivity in the horizontal direction
  • MIMO antenna correlation
  • Cross-polarization characteristics
  • Antenna efficiency
  • Total Omni-directional Sensitivity
  • 2D/3D radiation direction map
  • Equivalent Omni-directional Sensitivity
  • MIMO Throughput Rate
  • Gain
  • Directionality
  • Beamwidth
  • Total radiated power

Support for current major wireless communication standards, including 2G, 3G, 4G, 5G (NR FR1), Wi-Fi (802.11 a/b/g/n/ac/ax), GNSS, Bluetooth, as well as C-V2X and other protocols specific to Smart Connected Vehicles.

It supports automated calibration functions, simplifies the calibration process and reduces the difficulty of operation for users, solving the problem of tedious, complex and error-prone operation in conventional calibration.

# 02 Scenario simulation, Interference diagnosis

Support for rich driving scenarios (city, countryside, high speed, rain, fog, muddy roads) channel model simulation testing, including MIMO communication performance, the whole vehicle antenna, the whole vehicle wireless transceiver performance and other indicators. Desense testing capability to simulate vehicle driving conditions in the laboratory to test the impact of each module in the vehicle. The test content includes: the impact of vehicle status on communication performance, the impact of on-board equipment on communication performance, the impact of vehicle power supply on communication performance, etc.

Desense testing capability to simulate vehicle driving conditions in the laboratory to test the impact of each module in the vehicle. The test content includes: the impact of vehicle status on communication performance, the impact of on-board equipment on communication performance, the impact of vehicle power supply on communication performance, etc.

# 03 Close and distant transitions, Rich presentation

To solve the problem of accurate measurement of large parts, Universal Testing has improved both spherical near-field scanning and near- and far-field conversion techniques. Together with the unique probe design, Auto solves the three major challenges of whole vehicle OTA testing: eccentric near and far field of large DUTs, effective probe exposure, cross-polarisation and symmetry, and probe factor calibration in near and far field reduction, enabling accurate assessment of vehicle wireless communication performance.

It supports monitoring of the entire test process, viewing hardware reach information, measurement data and measurement progress during the measurement process, supporting functions such as switching frequency points, switching hardware angles and viewing test tasks, which can assist R&D personnel to quickly and intuitively analyse and diagnose problems.

Provides rich data presentation and comparison functions, such as near-field and far-field data comparison, 2D/3D comparison of different angles, multi-angle and multi-frequency data comparison, data comparison of different measured parts, etc.

# 04 Flexible and adaptable, Easy to operate

Introduction of a plug-in development model, flexible system architecture, fast adaptation to changes in requirements, built-in support for mainstream instrumentation and one-click support for customer configuration. Complete raw data and log management, full monitoring and traceability of the measurement process.

Independent data analysis software is provided to separate the testing and analysis processes, facilitating data sharing and supporting visual parallel comparison of multiple sets of test data (up to 8 sets).

The user interface is clearly hierarchical and the operation process is clear at a glance, the simple operation experience brings efficient measurement efficiency. The structured parameter configuration and stable operating performance provide a solid guarantee for high accuracy, high intensity and all-weather measurements.

# 05 Unattended, Safety management

Based on the workflow idea, it supports batch test task scheduling and enables unattended continuous operation by setting flexible exception handling strategies (e.g. anti-dropout, breakpoint renewal, etc.), which greatly improves system utilization and reduces testing costs.

Application design based on industrial-grade encryption locks to ensure that test data can only be accessed in a controlled range in a compliant manner to avoid information leakage. The hard-lock authorisation scheme prohibits the opening of test software without a lock to achieve mandatory authorisation; high-strength shelling technology prevents the invasion of malicious applications and Trojan horses to ensure the integrity and trustworthiness of the test program.

# 06 Freedom to expand, Customise on demand

With modular design and scalable system architecture, it can quickly support new communication standards and test indicators, adapt to field instrumentation, complete integration with independent systems (such as OA, CRM, ERP, MES, etc.), meet the user’s needs for flexible customisation of the test process, and create value for customers.

Both robotic arm-based solutions for existing lightweight darkrooms and slide-based solutions for full-featured darkrooms are supported, meeting the needs of users in projects for upgrading or new construction of darkrooms and supporting testing requirements at all stages of R&D and certification.

# Partners

睿测®️ automotive OTA test software Auto fully supports the universal testing of complete vehicle OTA test systems, including RBWD5000, RBWD6500, RRB3000, RRB4500, RRB4500J and other series products, and has won the approval and favor of a large number of users.