Projection Content Switching Through Power-Line Sequence Signals
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Solution Overview
Problem
The existing puddle lamp systems in vehicles require manual replacement of projection content, which is inconvenient for users.
Innovation Solution
A projection system comprising a central control platform and a projection apparatus with a power circuit, processing circuit, and optical engine module, where a sequence signal is used to generate a power supply and decode image information, allowing for convenient replacement of projection content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual replacement of projection content is used, then device complexity is reduced, but ease of operation deteriorates
Solution Approach 1:
The power supply line is designed to serve dual purposes: providing electrical power to the projection apparatus and simultaneously transmitting sequence signals that carry content identification information. This multi-functionality eliminates the need for separate communication channels, allowing users to easily switch projection content while avoiding significant increases in system complexity.
Solution Approach 2:
A sequence signal acts as an intermediary carrier that transmits content selection information through the power supply circuit. The signal modulates power delivery in a coded manner, enabling the projection apparatus to receive content instructions without requiring dedicated data transmission hardware, thus balancing ease of operation with device complexity.
2Ease of operation
If sequence signal transmission through power circuit is implemented, then ease of operation improves, but device complexity increases
Solution Approach 1:
The power circuit is designed to simultaneously perform power delivery and signal transmission functions. By encoding content information within the power signal itself, the circuit handles both energy and data without requiring separate communication infrastructure, thereby improving ease of operation while limiting the increase in device complexity.
Solution Approach 2:
The projection apparatus autonomously decodes the sequence signal embedded in the power supply to determine which projection content to display. This self-service capability eliminates the need for complex external control systems, allowing the device to automatically switch content based on the received signals while keeping the overall system complexity manageable.
3Adaptability or versatility
If conventional puddle lamp with fixed pattern is used, then manufacturing precision is simplified, but adaptability deteriorates
Solution Approach 1:
The projection system transitions from a static, fixed pattern to a dynamic, changeable pattern through the sequence signal mechanism. The projection apparatus can dynamically switch between different projection contents based on the received signals, enhancing adaptability while maintaining manufacturing precision through standardized projection components that support multiple patterns.
Solution Approach 2:
The system enables parameter changes in projection content by receiving sequence signals that specify different projection patterns. The underlying projection hardware remains precise and standardized, but the projected content parameters (patterns, images, or videos) can be changed remotely, achieving high adaptability without compromising manufacturing precision.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables easy modification and replacement of projection content by instructing the projection apparatus through a sequence signal, improving user convenience and reducing detection time.
Implementation Method 1
The power circuit is configured to pass the sequence signal through an energy storage element to generate a power supply
Data Source
AI summary
The disclosure relates to a projection system and an operation method thereof. The projection system includes a central control platform and a projection apparatus. The central control platform generates a sequence signal according to a self-defined setting. The projection apparatus is coupled to the central control platform and includes a power circuit, a first processing circuit, and an optical engine module. The power circuit passes the sequence signal through an energy storage element to generate a power supply. The first processing circuit performs an operation based on the power supply to generate a decoding result according to the sequence signal. The optical engine module obtains image information according to the decoding result and generates a display image according to the image information.