Vehicle LIDAR Angle Control for Slope-Adaptive Field of View
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Solution Overview
Problem
Existing LIDAR systems in vehicles struggle to accurately adjust their field of view when transitioning from flat surfaces to slope surfaces, leading to reduced accuracy and safety in autonomous driving scenarios.
Innovation Solution
A vehicle system comprising a vehicle body, environment sensor, support member, actuator, and controller that dynamically adjusts the sensor's field of view based on inclination detection information to maintain accurate environment detection across varying road surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the LIDAR device maintains a fixed field of view (FOV) configuration, then the device structure remains simple and stable, but the device cannot accurately recognize objects when the vehicle enters slope surfaces
Solution Approach 1:
The LIDAR sensor is configured with adjustable mounting angles rather than being fixed. The sensor can dynamically change its detection angle to adapt to different road conditions (flat vs. slope surfaces), resolving the contradiction between maintaining simple structure and achieving accurate object recognition on varying terrains.
Solution Approach 2:
The system changes the detection parameters (field of view angle) of the LIDAR sensor based on road slope conditions. By adjusting the sensor's mounting angle parameter, the system maintains accurate object recognition capability across different road surfaces without requiring completely different sensor systems.
2Adaptability or versatility
If the LIDAR sensor is fixedly installed in the vehicle frame, then the installation is simple and stable, but the sensor cannot adapt to different road surface conditions
Solution Approach 1:
The sensor mounting system transitions from a completely fixed installation to a dynamically adjustable configuration. The sensor can be positioned at different angles to adapt to various road conditions while maintaining relatively simple installation through standardized adjustable mounts.
3Reliability
If the field of view is adjusted using autonomous driving map information, then the system can adapt to slope surfaces, but immediate adjustment is not possible depending on communication status
Solution Approach 1:
The system performs preliminary detection of road slope conditions using the LIDAR sensor itself, rather than waiting for map data. This allows the vehicle to proactively identify upcoming slopes and adjust the sensor angle in advance, eliminating communication delays and ensuring real-time adaptability.
Solution Approach 2:
The LIDAR sensor system performs self-detection of road conditions and self-adjustment of its field of view based on detected slopes, rather than relying on external map information systems. This autonomous operation ensures immediate response to changing road conditions without communication dependencies.
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
The system ensures precise detection of external environments by actively adjusting the sensor's field of view, enhancing accuracy and safety during transitions between flat and slope surfaces.
Implementation Method 1
Light Detection And Ranging (LIDAR) is a radar system that measures the distance to the outside using a laser pulse. The LIDAR device radiates laser light to the surrounding area and measures the time it takes for it to reflect outside and return to measure the distance to the outside and the shape of the measurement object.
Data Source
AI summary
A vehicle and a method of controlling the same are disclosed. The vehicle according to an aspect of the present disclosure includes a vehicle body; an environment sensor configured to generate environment detection information on an external environment; a support member coupled to the vehicle body and the environment sensor, respectively; and an actuator coupled to the vehicle body and one part of the support member, respectively, and configured to move the one part of the support member in a direction toward the vehicle body and a direction opposite to the vehicle body, wherein one side of the support member in a height direction is coupled to the actuator, and the other side of the support member in the height direction is rotatably coupled to the vehicle body, so that when the actuator is operated, the environment sensor rotates clockwise or counterclockwise about the other side of the support member.