A security monitoring method for LCOS head-up displays

By setting up an independent monitoring and management module and using a high-reliability microprocessor for CRC verification and position sensor monitoring, the problem of fine coverage of the LCOS head-up display video transmission link was solved, achieving high security and efficient monitoring.

CN119583894BActive Publication Date: 2026-06-30LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
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Patent Information

Application Number
CN202411679447.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-22
Publication Date
2026-06-30
Estimated Expiration
2044-11-22

AI Technical Summary

Technical Problem

Existing LCOS head-up display security monitoring methods cannot provide precise coverage of the entire video transmission link, thus affecting system security metrics.

Method used

Set up an independent monitoring and management module, using a microprocessor or logic device with high power-on reliability as the carrier, perform CRC verification according to the ARINC818 protocol, insert a fixed test sequence, use position sensors for monitoring, and summarize the results to report to the health management system.

Benefits of technology

It achieves refined full coverage of the video transmission link for LCOS head-up displays, meets high security requirements, and has advantages such as high resource utilization, good real-time performance, and strong operability.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application relates to the field of security monitoring technology, and particularly to a security monitoring method for LCOS head-up displays. The method includes: setting up a monitoring management module to monitor the security of the video transmission link within the LCOS head-up display; implementing security monitoring of the ARINC818 conversion unit according to the ARINC818 protocol; performing CRC checks on DVI video frames in both the ARINC818 conversion unit and the DVI video receiving unit, and implementing security monitoring of the DVI video receiving unit based on the results of the two CRC checks; inserting a fixed test sequence into the DVI video frames, and implementing security monitoring of the LCOS display driving unit based on the standard solution and the data processing conversion results of the fixed test sequence; using a position sensor to monitor the security of the optical combination lens unit; summarizing the security monitoring results and reporting them to the product health management system. This method can cover the entire video transmission link of the LCOS head-up display and can meet the high security requirements of the product.
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Citation Information

Patent Citations

  • Head-up display monitoring system

    CN104333744A

  • Simulation test device for ARINC818 bus

    CN209390084U