Vehicle Courtesy Projection Control for Real-Time Custom Content

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Solution Overview

Problem

Existing vehicle projection lamps cannot update projection content in real time and lack user customization options.

Innovation Solution

A vehicle courtesy projection system with a trigger module, control module, and projection module that allows for user-defined projection content, including video, dynamic patterns, and static patterns, controlled via a client device such as a smartphone, using technologies like LVDS, Ethernet, or CAN for communication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If projection lamps are used in vehicles, then illumination and visual presentation are improved, but the ability to update projection content in real time and provide user customization is lost

Engineering Contradiction:
Improveprojection illuminationVSAvoidprojection content customization
Core Design Contradiction:
Illumination intensityVSAdaptability or versatility

Solution Approach 1:

The patent applies dynamics by transitioning from static projection patterns to dynamic, real-time updatable content. The control module receives projection information from a client device and dynamically adjusts the projection content, allowing users to customize patterns, videos, and images. This enables the projection system to adapt to different user needs and scenarios while maintaining illumination functionality.

Inventive Principle:
Principle #15Dynamics

2Device complexity

If projection content is fixed and static, then device complexity is reduced, but real-time content updates and user control capabilities are limited

Engineering Contradiction:
Improveprojection system complexityVSAvoiduser control capability
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The patent introduces a control module as an intermediary between the client device (smartphone, tablet, or vehicle terminal) and the projection module. This intermediary receives projection information including content data and control instructions, processes them, and transmits to the projection module. This architecture enables user control and real-time content updates while keeping the projection hardware relatively simple and maintaining manageable system complexity.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Adaptability or versatility

If projection content is updated in real time with user customization, then adaptability and user control are improved, but device complexity and control system requirements increase

Engineering Contradiction:
Improveprojection content flexibilityVSAvoidcontrol system complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The control module is designed with multi-functionality to handle various projection content types (patterns, videos, images), process different control instructions (start, pause, stop, switch), and communicate with multiple client devices. By consolidating these diverse functions into a single control module, the system achieves high adaptability and user customization capability while avoiding the need for multiple separate control systems, thus managing overall complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP4316909B1Vehicle courtesy projection system and vehicle
Publication Date: 2025.08.20 ZHEJIANG SMART INTELLIGENCE TECH CO LTD
  • EP4316909B1 patent drawingFigure 1~2
  • EP4316909B1 patent drawingFigure 3

AI summary

A vehicle courtesy projection system and a vehicle. The vehicle courtesy projection system comprises a triggering module, a first control module, and a projection module. The triggering module is connected to the first control module, and the first control module is connected to the projection module. The triggering module is configured to receive projection information sent by a client and send the projection information to the first control module. The first control module is configured to receive the projection information and control, according to the projection information, the projection module to perform projection.