Vehicle Imaging Angle Detection Using Multi-Target Coordinates
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle detection systems struggle to simultaneously and accurately detect the pitch and roll angles of an imaging device, such as LIDAR, when it is inclined in both directions, leading to potential errors in object positioning.
Innovation Solution
A detection device comprising an acquisition unit to gather data from multiple targets, a calculation unit to determine target coordinates, and a detection unit to calculate and correct pitch and roll angles, allowing for accurate detection and correction of imaging device orientations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an imaging device is attached to a vehicle while inclined in both pitch and roll directions, then the device can adapt to various mounting positions, but the pitch angle and roll angle cannot be simultaneously and accurately detected
Solution Approach 1:
The patent segments the angle detection process into two independent parts: pitch angle detection using targets on the left and right sides, and roll angle detection using targets on the front and rear sides. This segmentation allows each detection task to be handled separately, resolving the contradiction between adaptability and precision.
Solution Approach 2:
The patent introduces multiple reference targets as intermediaries between the imaging device and the mounting angle measurement. By detecting coordinates of these targets and using them as reference points, the system can accurately calculate both pitch and roll angles even when the device is inclined in multiple directions.
2Device complexity
If only pitch angle detection is implemented, then the detection system remains simple, but roll angle information is lost leading to positioning errors
Solution Approach 1:
The patent makes the detection system universal by enabling it to detect both pitch and roll angles using the same imaging device and target configuration. The system can handle multiple detection functions simultaneously, improving reliability without requiring separate detection devices for each angle.
Solution Approach 2:
The patent extends the detection capability from a single dimension (pitch angle only) to multiple dimensions by incorporating roll angle detection. By utilizing targets positioned in different spatial dimensions (front, rear, left, right), the system achieves comprehensive angle detection.
Data Source
AI summary
A detection device includes: an acquisition unit configured to acquire a detection result of a plurality of targets present in a traveling direction of a vehicle from an imaging device attached to the vehicle; a calculation unit configured to determine whether the plurality of targets detected with movement of the vehicle are an identical target based on the detection result acquired by the acquisition unit and calculate a coordinate of each of the plurality of targets in chronological order; and a detection unit configured to detect a pitch angle and a roll angle of the imaging device with respect to a horizontal direction based on the coordinate calculated in chronological order by the calculation unit.