Object Detection Correction for Motorcycle Handlebar Inclination
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Solution Overview
Problem
Saddle-type vehicles face challenges in maintaining accurate object detection due to their inclination during turning and braking, which displaces the detected object position, and existing solutions like complex attachment modules are costly and prone to failure.
Innovation Solution
An object detection system for saddle-type vehicles that includes an object detection unit on a rotatable handlebar, an inclination detection unit, and a position specification unit to correct the detected object position based on the vehicle's inclination and steering angle, using a simple configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If an attachment module is used to rotate the image capturing system in the direction opposite to the vehicle body inclination, then the detected object position can be corrected, but the system becomes costly and complex
Solution Approach 1:
The patent replaces the mechanical attachment module with an electronic coordinate transformation system. Instead of physically rotating the image capturing system to counteract vehicle inclination, the patent calculates corrected object positions by transforming coordinates based on detected inclination angles and steering angles, eliminating the need for complex mechanical rotation mechanisms.
Solution Approach 2:
The patent creates a virtual corrected image by transforming coordinates of detected objects rather than physically adjusting the image capturing system. This virtual copy of the corrected positional information achieves the same effect as mechanical rotation without the associated complexity and cost.
2Measurement precision
If an attachment module is used to rotate the image capturing system, then object position correction is achieved, but the system is prone to failure due to mechanical complexity
Solution Approach 1:
The patent eliminates mechanical moving parts by substituting the attachment module with an electronic coordinate transformation algorithm. This software-based solution has no mechanical components that can wear out or fail, significantly improving system reliability while maintaining the ability to correct object position detection accuracy.
3Device complexity
If the image capturing system is rotated about only one axis, then the structure is simplified, but the position correction is incomplete for saddle-type vehicles
Solution Approach 1:
The patent extends the correction from single-axis rotation to multi-dimensional coordinate transformation. By considering both vehicle inclination angles (roll and pitch) and handlebar steering angles, the system performs comprehensive coordinate transformation in three-dimensional space, achieving complete position correction without complex mechanical multi-axis rotation mechanisms.
Solution Approach 2:
The patent changes the approach from physical rotation parameters to mathematical coordinate transformation parameters. By using inclination angles and steering angles as input parameters for coordinate transformation, the system achieves comprehensive position correction through software calculations rather than mechanical multi-axis rotation.
Data Source
AI summary
An object detection system for a saddle-type vehicle is provided. The system comprises an object detection unit configured to detect an object, wherein the object detection unit is provided on a handlebar which is rotatable to a body of the vehicle; an inclination detection unit configured to detect an inclination of a saddle-type vehicle; a steering angle detection unit configured to detect a steering angle of the handlebar to the body; and a position specification unit configure to specify a position of the object detected by the object detection unit, and correcting the position so that the inclination detected by the inclination detection unit is upright and the steering angle of the handlebar detected by the steering angle detection unit is directed straight.