Movable Vehicle Sensors for Occlusion-Aware Navigation
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Solution Overview
Problem
Autonomous vehicles equipped with fixed sensors face limitations in capturing data due to obstructed fields of view, particularly in scenarios like turns, occlusions, and high traffic conditions, which can compromise safety and navigation accuracy.
Innovation Solution
Incorporating movable sensors that can adjust their mechanical and electronic configurations to capture additional data by extending or rotating, allowing them to operate beyond the limitations of fixed sensors, and transmitting this data to remote systems for enhanced navigation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fixed sensors are used in autonomous vehicles, then the device structure is simple and stable, but the field of view is obstructed in certain scenarios (turns, occlusions, high traffic)
Solution Approach 1:
The sensor is made movable rather than fixed, allowing it to dynamically adjust its orientation and position. The sensor can rotate and extend to capture data from different angles and locations, resolving the contradiction between structural simplicity and field of view coverage.
Solution Approach 2:
The sensing system is divided into multiple independent components: a base sensor unit and a movable platform. This segmentation allows the sensor to be positioned independently from the vehicle body, enabling it to overcome obstructions while maintaining a relatively simple overall structure.
2Adaptability or versatility
If movable sensors are added to overcome field of view limitations, then the field of view coverage is improved, but the device complexity increases
Solution Approach 1:
The movable sensor platform is designed to perform multiple functions: it can rotate to change viewing angles, extend to reach different positions, and capture various types of sensor data. This multi-functionality reduces the need for multiple separate sensors and mechanisms, thereby controlling overall system complexity.
Solution Approach 2:
The sensor system includes automated control that allows the sensor to independently adjust its position and orientation based on navigation needs. The system self-manages the complexity of movement and positioning without requiring extensive external control mechanisms.
3Reliability
If sensors capture data from all directions to improve safety, then the navigation safety is improved, but the energy consumption increases
Solution Approach 1:
The sensor system proactively positions itself to capture critical data before navigation decisions are made. By anticipating upcoming turns or potential hazards, the sensor moves into optimal positions in advance, reducing the need for continuous omnidirectional scanning and thereby lowering energy consumption.
Solution Approach 2:
Instead of continuously scanning all directions, the sensor performs periodic measurements at strategically selected positions and angles. This periodic sampling approach maintains safety by capturing essential data while significantly reducing the energy required compared to continuous全方位 monitoring.
Data Source
AI summary
Among other things, we describe systems and method for improving vehicle operations using movable sensors. A vehicle can be configured with one or more sensors having the capability to be extended and/or rotated. The one or more movable sensors can be caused to move based on a determined context of the vehicle, to capture additional data associated with the environment in which the vehicle is operating.