Vehicle Rear Camera Parking Guide with Dynamic Width and Stop Lines
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Solution Overview
Problem
Existing parking guide systems for vehicles lack effective visualization of parking areas and guidelines, particularly in complex environments, making it difficult for drivers to accurately park vehicles.
Innovation Solution
A rear camera system with a parking guide function that includes a camera, a parking guide control unit, and a display unit, which synthesizes images and guidelines to display the parking area, minimum and maximum widths, and stop assist lines, enhancing the driver's ability to park safely and accurately.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a parking guide system displays only basic trace information, then the system complexity is low, but the parking guidance accuracy and visibility are insufficient
Solution Approach 1:
The parking guidance information is segmented into multiple distinct visual elements: parking area guidelines (minimum and maximum widths), stop assist lines, steering angle marks, and trace information. Each element serves a specific function and is displayed separately on the display unit, allowing comprehensive guidance without overwhelming complexity in a single display component
Solution Approach 2:
The system overlays multiple layers of information on the rear camera image: the live video feed forms the base layer, parking area guidelines are overlaid as rectangular boundaries, stop assist lines are added as reference markers, and steering angle marks are superimposed on the image. This multi-layer overlay approach provides comprehensive guidance information without requiring separate physical displays for each element
2Manufacturing precision
If the system displays detailed parking area guidelines and multiple reference lines, then parking accuracy is improved, but the information processing complexity increases
Solution Approach 1:
The parking logic operation unit pre-calculates all necessary guidance parameters before display: minimum and maximum parking area widths are computed based on vehicle dimensions and ambient landform information, stop assist line positions are determined in advance, and steering angle marks are pre-positioned. This preliminary calculation reduces real-time processing complexity while maintaining high display accuracy
Solution Approach 2:
The parking logic operation unit serves as an intermediary between the camera input and the display output. It receives the rear camera image and systematically processes multiple layers of guidance information (parking area boundaries, stop lines, steering marks) before synthesizing them into the final composite image. This intermediary processing layer organizes complex information flow and simplifies the overall system architecture
3Adaptability or versatility
If the system calculates and displays minimum and maximum parking widths based on ambient landform, then adaptability to different parking environments is improved, but the calculation and display complexity increases
Solution Approach 1:
The system dynamically adjusts display parameters based on detected ambient conditions: minimum and maximum parking area widths are calculated variables that change according to vehicle dimensions and ambient landform information, stop assist line positions are adjusted based on parking area guidelines, and steering angle marks are modified according to detected steering input. These parameter changes enable adaptability to different parking environments without requiring complex reconfiguration of the system architecture
Solution Approach 2:
The parking logic operation unit performs multiple functions within a single processing module: it calculates parking area boundaries, determines stop assist line positions, computes steering angle mark locations, and synthesizes all guidance elements into the final display image. This multi-functional approach enhances environmental adaptability while avoiding the complexity of separate dedicated modules for each function
Data Source
AI summary
Provided are a rear camera system for vehicles and a parking guide system using the same, which displays the minimum width and maximum width of a parking area guideline in consideration of the dimensions of a vehicle in displaying a parking area, and displays a stop position in backing. The parking guide system includes a camera mounted on a vehicle, a display unit disposed inside the vehicle, and a parking guide control unit connected to the camera and the display unit. The parking guide control unit includes a parking logic operation unit receiving a steering angle, a speed, or a parking mode from the vehicle, a parking area guideline display unit displaying a guideline for parking guide on the basis of the result of the logic operation, and an image synthesizer synthesizing the results, displayed by the parking area guideline display unit, and an image obtained by the camera.