Vehicle Image Acquiring Apparatus Random Timing Modulation
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Solution Overview
Problem
Existing image acquiring apparatuses for vehicles face challenges in accurately acquiring distance information due to interference from pulse light emission from neighboring vehicles and irregular reflected light, leading to erroneous data.
Innovation Solution
The apparatus modulates the light emission cycle and imaging timings using random numbers and communicates with neighboring vehicles to synchronize these cycles differently, and employs multiple light emitting directions to distinguish between reflected light and other light sources, allowing for accurate distance information acquisition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the apparatus continuously and repeatedly images pulse light from a neighboring vehicle having the same system, then the imaging frequency and data accumulation are improved, but erroneous distance image data is generated due to interference from neighboring vehicle's pulse light
Solution Approach 1:
The patent applies periodic action by modulating the light emission cycle and imaging timings using random numbers, creating a periodic yet variable timing pattern that allows continuous imaging while avoiding fixed interference patterns from neighboring vehicles with the same system
Solution Approach 2:
The patent changes the timing parameters (light emission cycle and imaging timings) dynamically by modulating them with random numbers, transforming fixed periodic imaging into a variable timing system that maintains high imaging frequency while avoiding interference
2Adaptability or versatility
If the device images irregular reflected light from pedestrians, guardrails, and so on, then the coverage and detection capability are improved, but accurate distance image data cannot be acquired due to irregular reflected light interference
Solution Approach 1:
The patent applies dynamics by making the light emission cycle and imaging timings variable rather than fixed, allowing the system to adapt to different detection scenarios including irregular reflected light from pedestrians and guardrails while maintaining measurement precision through dynamic timing adjustment
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
This configuration enables the vehicle to accurately acquire distance information without being affected by pulse light emission from neighboring vehicles and irregular reflected light, enhancing safety and reliability in self-driving systems.
Implementation Method 1
an image acquisition unit configured to acquire a plurality of different images of target distance ranges by imaging reflected light returning from the target distance ranges
Data Source
AI summary
An image acquiring apparatus for a vehicle includes a light emitting unit configured to emit pulse light to a predetermined direction, an image acquisition unit configured to acquire a plurality of different images of target distance ranges by imaging reflected light returning from the target distance ranges at imaging timings set according to the target distance ranges, and a timing controller configured to control a light emission cycle of the pulse light and the imaging timings. The timing controller is configured to control the light emission cycle and the imaging timings such that the light emission cycle and the imaging timings are modulated by random numbers.