Vehicle Radar Module Layout for 360-Degree Object Detection
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Solution Overview
Problem
Existing vehicles lack comprehensive radar systems for effective driver assistance, particularly in detecting objects around the vehicle to enhance safety and convenience.
Innovation Solution
A radar module system comprising multiple antenna modules with interconnected boards and processors to provide wide-ranging radar data processing, enabling control of driving, braking, and steering devices based on object detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple antenna modules are used to enhance object detection coverage, then the sensing area and detection capability are improved, but the device complexity increases
Solution Approach 1:
The radar system is divided into multiple antenna modules, each with its own board and antenna array. Each module independently covers a specific direction (front, rear, left, right), allowing the system to achieve comprehensive 360-degree coverage while maintaining modular architecture that simplifies installation and maintenance.
Solution Approach 2:
The patent transitions from a single-plane antenna arrangement to a three-dimensional spatial distribution of multiple antenna modules positioned at different locations on the vehicle (front, rear, left, right sides). This dimensional expansion enables comprehensive omnidirectional object detection coverage.
2Stability of the object's composition
If rigid printed circuit boards are used for antenna modules, then structural stability is improved, but flexibility and adaptability to different mounting positions are reduced
Solution Approach 1:
The circuit board system is segmented into rigid boards for structural stability and flexible connection elements for adaptability. Each antenna module uses rigid printed circuit boards to maintain stable antenna positions, while flexible printed circuit boards provide adaptable connections between modules and to the vehicle body, allowing installation at various locations.
Solution Approach 2:
The patent employs a composite structure combining rigid printed circuit boards (for structural stability) with flexible printed circuit boards (for adaptability). This composite approach allows the antenna modules to maintain precise geometric relationships while accommodating different mounting positions and vehicle body contours.
3Power
If multiple processors are distributed across different boards, then processing capability and speed are improved, but the system complexity increases
Solution Approach 1:
The processing system is segmented into multiple processors distributed across different antenna module boards. Each processor handles radar data from its local antenna array independently, enabling parallel processing that increases overall computational capability while distributing the processing load to reduce bottlenecks.
Solution Approach 2:
While processors are distributed for parallel processing, the patent merges the processing functions into an integrated system where multiple processors work cooperatively. The processors are physically distributed across different boards but logically unified through a common processing architecture that combines their outputs to generate comprehensive object detection results.
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
Enhances vehicle safety and convenience by providing comprehensive object detection and control of vehicle systems, covering rear, side, and front areas with integrated radar data processing.
Implementation Method 1
a first antenna array provided on the first board to radiate radio waves in the first direction and provide the radar data to the processor, a second antenna array provided on the second board to radiate radio waves in the second direction and provide the radar data to the processor
Data Source
AI summary
Disclosed herein is an apparatus for driver assistance. The disclosed apparatus includes a radar module configured to provide information on an object around a vehicle, and a controller configured to control at least one of a driving device, a braking device, or a steering device of the vehicle based on the information on the object. The radar module includes an antenna module installed on the vehicle to have a sensing area in an outward direction of the vehicle and acquire radar data, and a processor configured to acquire the information on the object around the vehicle based on processing the radar data. The antenna module includes a first board facing a first direction, a first antenna array provided on the first board to radiate radio waves in the first direction and provide the radar data to the processor, a second board facing a second direction different from the first direction, a second antenna array provided on the second board to radiate radio waves in the second direction and provide the radar data to the processor, and a bridge configured to electrically and physically connect the first board and the second board.