Vehicle Reverse Guide Pattern Analysis for Ground Safety
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Solution Overview
Problem
Existing vehicle reverse drive systems struggle to determine if a vehicle can safely reverse due to limitations in detecting ground surface conditions, leading to potential accidents from falling or getting stuck in uneven terrain.
Innovation Solution
An apparatus and method that utilize a camera and lamp to output a reverse guide pattern on the ground surface, with a controller determining the illuminance and size of the pattern to assess whether the vehicle can reverse safely, and output warnings or initiate braking if conditions are unfavorable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If an ultrasonic sensor is used to detect obstacles during reverse driving, then obstacle detection capability is improved, but the ability to detect ground surface conditions (such as clay, puddles, cliffs) deteriorates
Solution Approach 1:
The patent applies multi-functionality by using a camera to perform multiple detection tasks: detecting both obstacles and ground surface conditions (clay, puddles, cliffs). The image processing unit analyzes the captured images to determine both the presence of obstacles and the type of ground surface, allowing a single sensor system to serve multiple detection purposes that were previously required separate systems
Solution Approach 2:
The patent replaces the ultrasonic sensor (acoustic/mechanical system) with a camera-based optical system for ground surface detection. The camera captures visual information about the ground surface, and image processing algorithms analyze the visual characteristics to identify different ground conditions such as clay, puddles, and cliffs, substituting mechanical wave detection with optical detection
2Adaptability or versatility
If a camera is added to capture images of the reverse guide pattern, then ground surface condition detection capability is improved, but device complexity increases
Solution Approach 1:
The patent merges the reverse guide pattern function with the ground surface detection function. The same camera that captures the reverse guide pattern for guidance is also used to capture images for ground surface condition analysis. The image processing unit simultaneously processes the guide pattern information and ground surface information from the captured images, combining multiple functions into a single integrated system
Solution Approach 2:
The camera serves multiple purposes: providing visual guidance to the driver through the reverse guide pattern display and simultaneously detecting ground surface conditions. The image processing unit performs dual analysis on the captured images, extracting both guide pattern information and ground surface characteristics, making the camera a multi-functional component that reduces the need for additional dedicated sensors
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 safe reverse driving by determining impossible reverse areas and preventing accidents by providing timely warnings and braking interventions based on ground surface conditions.
Implementation Method 1
a lamp that outputs a reverse guide pattern to a ground surface
Implementation Method 2
a camera that obtains an image of the reverse guide pattern output to the ground surface
Data Source
AI summary
Disclosed are an apparatus for controlling a reverse drive of a vehicle and a method of outputting warning thereof. The apparatus for controlling a reverse drive of a vehicle includes a sensor that senses whether a reverse shift is input, a lamp that outputs a reverse guide pattern to a ground surface, and a controller that controls the lamp to output the reverse guide pattern when the reverse shift is input and determine whether the vehicle is able to be reversed based on whether the reverse guide pattern output to the ground surface is changed.