CMS Electronic Mirror Line
HY CMS production line integrates display assembly, ECU assembly and full-dimensional electrical & optical testing. Semi-automatic modular design supports quick-change multi-model production. Real-time MES data collection and traceability meets IATF automotive quality standards — purpose-built for CMS electronic mirror mass production.
From displays and camera arms to ECUs — HY CMS lines handle full system assembly and final testing. Dedicated optical stations verify display and imaging quality; electrical stations validate functionality and performance. Modular quick-change and MES connectivity help automotive electronics customers efficiently mass-produce CMS products.
Modular CMS Line Design: Supporting Multiple Vehicle Platforms on One Line
Automotive electronics suppliers rarely build just one version of a CMS system — they typically adapt the technology across multiple vehicle platforms, each with different screen sizes, camera configurations and ECU specifications. A modular production line design makes this multi-platform strategy practical and cost-effective. Modular CMS lines are built around independent stations that can be reconfigured, added or removed as the product mix changes. Quick-change tooling and nests allow operators to swap fixtures for different display sizes or camera arm designs in minutes, and test software stores separate parameter recipes for each product model that load automatically. This modular approach delivers several business benefits. First, it reduces capital expenditure by sharing equipment across programs instead of building dedicated lines for each vehicle model.
Second, it shortens launch timelines for new products because the base line already exists and only new tooling and test profiles are needed. Third, it improves line utilization by balancing production across multiple products instead of having dedicated lines sitting idle during low-demand periods. For suppliers serving multiple OEMs or vehicle programs, modular design isn’t just a technical feature — it’s a strategic advantage that improves both profitability and responsiveness to customer changes. The key is working with an equipment supplier who understands modular architecture from the start, rather than trying to bolt flexibility onto a fixed line later.
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Product Compatibility & Quick-Change Tooling
HY CMS lines support multiple electronic mirror products on the same line, with custom quick-change tooling and fixtures tailored to different vehicle models and CMS sizes. Model changeover only requires swapping fixtures and loading the corresponding test program — no major line reconfiguration needed. Platform variants share most stations, maximizing equipment utilization across product programs and adapting to the multi-model production typical of the automotive industry.
Assembly Station Module Configuration
The line uses modular station design, letting customers add or remove assembly stations based on their product process requirements. Optional modules include screen assembly, interior mirror housing assembly, exterior arm installation, ECU board assembly, connector crimping and wiring harness management. Each station operates independently with individual control for flexible combination by product complexity. Stations can be added later as products evolve, protecting initial investment and extending overall line lifecycle.
Optical Testing Items & Standard Customization
Optical test stations are customizable for test items and pass/fail thresholds per product specifications, covering display brightness, chromaticity, uniformity and pixel defect detection, plus camera module resolution, distortion, field-of-view and HDR performance. Thresholds can be set per GB15084 national standard or OEM enterprise standards to ensure regulatory and customer compliance. Test algorithms support configurable switching, with each product model loading its corresponding test scheme to ensure optical quality across variants.
Electrical Performance Test Customization
Electrical test stations support custom test items and parameter ranges including operating current, standby power consumption, communication protocol verification, interface signal integrity and button/touch function testing. Voltage and current limits are configurable per ECU specifications, with support for automotive protocols like CAN and LVDS. All test items are configurable and editable, adapting to different ECU hardware versions. Test data is automatically logged and tied to serial numbers, meeting automotive industry traceability requirements.
Product Overview
HY CMS Production Line is purpose-built for semi-automatic assembly and final testing of automotive Camera Monitor Systems, integrating screen & interior mirror assembly, exterior arm assembly, ECU controller assembly and end-of-line system testing. Equipped with independent electrical performance and optical quality inspection stations, it automatically verifies product functionality, display performance and imaging quality. The line features an integrated MES data acquisition system for real-time parameter monitoring and production data upload. Modular design supports quick tooling changeover and test algorithm switching, compatible with multiple CMS product variants — helping automotive electronics manufacturers efficiently assemble and quality-verify electronic mirror systems.
Key CMS Line Features
- Semi-automatic assembly mechanism for screen/interior mirror, exterior arm assembly, ECU assembly and EOL testing;
- Independent electrical and optical inspection stations for automatic product performance and optical quality testing;
- Data processing: built-in MES data acquisition system for real-time collection and monitoring of test parameters;
- Modular design supports quick tooling changeover for multi-product production and test algorithm switching.
The Role of Optical Inspection in CMS Electronic Mirror Manufacturing
Optical quality is the most visible performance metric for any camera monitor system, making optical inspection stations the quality backbone of CMS production lines. Unlike simple functional go/no-go tests, optical testing measures quantitative parameters that directly affect driver experience and safety. For the display side, inspectors measure luminance uniformity across the screen, chromaticity accuracy to ensure consistent color rendering, dead and stuck pixel counts, and overall brightness levels that must remain readable in both bright sunlight and dark conditions. For the camera side, tests cover resolution, geometric distortion, field-of-view coverage and dynamic range performance — all critical for providing a clear, undistorted view of what’s behind and beside the vehicle. Advanced optical stations use calibrated imaging colorimeters and standardized light sources to ensure measurements are repeatable and comparable across production runs. The best CMS lines integrate optical testing at multiple points in the process, not just at final test, catching issues early before more value is added to defective units.
ECU Assembly and EOL Testing Considerations for CMS Systems
The electronic control unit is the brain of any camera monitor system, handling image processing, signal conversion and functional logic — so its assembly quality and testing are make-or-break for system reliability. On CMS production lines, ECU assembly stations typically involve circuit board mounting, connector installation and housing sealing, all requiring careful ESD protection and precision fixturing to avoid damaging sensitive electronics. What happens at end-of-line testing is even more critical. A thorough EOL test for a CMS ECU validates operating current at different brightness levels, standby power draw to ensure it meets vehicle battery drain requirements, communication integrity over CAN or LVDS interfaces, video signal processing quality and response time for mode switching like brightness adjustment and view selection. The best test systems run these checks automatically against configurable parameter limits, adapting to different ECU hardware versions and software releases without reworking the station. Every test result is logged against the unit serial number for full traceability.
Product Features & Advantages
- Assembly & Testing Integrated, Full Coverage
One line handles all processes from screen assembly, exterior arm assembly and ECU assembly through electrical and optical final testing. Single-pass flow completes all assembly and inspection without intermediate handling, saving workshop space and material handling cost with higher overall production efficiency.
- Dual-Dimension Testing, Comprehensive Quality
Two independent test modules — electrical and optical — operate in parallel for dual verification of functional and optical quality. Electrical testing covers current, communication and functional response; optical testing covers brightness, chromaticity, uniformity and pixel defects, ensuring every CMS product meets standards inside and out.
- Modular Quick-Change, Multi-Model Production
Each station uses independent modular design with quick-change tooling and fixtures, supporting multiple CMS products on one line. Simple and fast changeover meets the flexible production demands of multi-model, multi-platform automotive programs while maximizing equipment utilization.
- Automotive-Grade Standards, Reliable Performance
Line design follows automotive electronics industry standards, with test accuracy and stability meeting IATF 16949 requirements. All core test modules are validated across multiple mass production projects for stable long-term operation, ensuring consistent CMS product output.
Application Fields & Scenarios
HY CMS lines handle assembly and comprehensive testing of exterior camera arm assemblies, interior display assemblies and ECU controllers. Optical stations verify display brightness uniformity, color accuracy and camera imaging quality, while electrical stations test power consumption, communication and functional response. Modular quick-change design adapts to CMS products across vehicle models, helping Tier-1 suppliers efficiently mass-produce regulation-compliant electronic mirror systems to support OEM smart cockpit upgrades.
HY CMS lines accommodate the assembly and testing of commercial-vehicle-specific configurations like larger displays and long-arm exterior cameras. For the higher reliability demands of commercial vehicles, the line supports optional environmental test stations including vibration simulation and thermal power-on testing to meet stringent operating standards. The data acquisition system fully logs test records for every unit, satisfying the high traceability requirements of the commercial vehicle industry.
HY CMS lines handle screen assembly, mirror housing assembly, circuit board installation and full functional testing of streaming mirrors. Optical inspection verifies display clarity, brightness and color performance, while electrical testing validates reverse signal, brightness adjustment and other functions. The line is compatible with traditional interior mirror production, allowing flexible switching between conventional and streaming product lines.
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Alternative Names
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