Optical-Linked Vehicle Radar for High-Resolution Movement Detection
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Solution Overview
Problem
Existing vehicle radar systems with multiple devices suffer from low resolution, time-consuming data transmission, and processing, especially in adverse weather conditions, limiting their ability to provide accurate movement information about surrounding vehicles.
Innovation Solution
A radar system with a central processor and optical transmission techniques between radar devices and the central processor, enabling fast data exchange and high-resolution three-dimensional point cloud analysis to determine the movement of surrounding vehicles, using a method that includes capturing radar information at multiple points in time, determining three-dimensional point clouds, and calculating translational and rotational relations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple radar devices are distributed around the vehicle to capture environment data, then the detection coverage and reliability are improved, but the data transmission time and processing time increase
Solution Approach 1:
The patent combines data from multiple distributed radar devices and processes them centrally to achieve both comprehensive detection coverage and efficient data handling. The central processor aggregates information from all radar devices, enabling unified processing that reduces overall transmission and processing time while maintaining reliable detection across all vehicle surroundings.
2Reliability
If multiple radar devices are used to improve detection capability, then the reliability is improved, but the processing time increases
Solution Approach 1:
The patent segments the processing task by having individual radar devices capture and pre-process data locally, then transmitting only essential information to the central processor. This segmentation allows parallel processing at the device level while maintaining comprehensive detection capability, thereby reducing the overall processing time.
3Reliability
If multiple radar devices are deployed to enhance environment sensing, then the reliability is improved, but the resolution remains low compared to other sensor systems
Solution Approach 1:
The patent merges data from multiple radar devices with complementary information from other sensor systems (such as cameras or LIDAR) to achieve high-resolution environment sensing. By combining the reliable all-weather detection capability of radar with the high resolution of other sensors, the system overcomes the resolution limitation of individual radar devices while maintaining reliable environment sensing.
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 provides reliable, high-resolution movement information about surrounding vehicles, allowing for real-time control commands for vehicle functions, enhancing safety and reliability in various weather conditions.
Implementation Method 1
A vehicle may comprise at least one radar device configured to capture at least one object in an environment of the vehicle
Implementation Method 2
at least one glass fiber connects the central processor and the individual radar devices and enables a radar system internal transmission of data and/or information with optical transmission techniques
Data Source
AI summary
The disclosure relates to a method to provide a movement information about at least one second vehicle by a first vehicle, comprising: capturing a radar information describing at least a part of an environment in which the at least one second vehicle is located at least at two consecutive points in time; determining a three-dimensional point cloud for each point in time; determining a relation information describing a translational and rotational relation between the point clouds; determining a movement information describing a movement of the at least one second vehicle; and providing the determined movement information. A radar system is disclosed that captures the radar information by using at least partially optical transmission techniques for radar system internal transmission of data and/or information between individual radar devices and a central processor of the radar system.