Vehicle Radar Dynamic Range Adjustment for Blockage
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Solution Overview
Problem
Existing vehicle-mounted radar systems with fixed detection ranges and timings may create undetected areas if a laser beam is blocked, limiting object detection performance.
Innovation Solution
A vehicle-mounted radar system with multiple laser radars and a control device that dynamically adjusts the detection range of adjacent radars based on blockage detection, expanding the range to cover undetected areas and supplement faulty radars.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the detection range and detection timing of each laser radar are fixed, then the system structure is simple, but undetected areas are created when laser beams are blocked by objects
Solution Approach 1:
The patent implements dynamic adjustment of detection ranges for laser radars based on real-time detection data. The control device determines whether laser beams are blocked by objects and dynamically expands the detection range of adjacent laser radars to cover undetected areas, transforming the fixed detection range into a flexible, adaptive parameter that responds to environmental conditions.
Solution Approach 2:
The system employs feedback mechanisms where detection results from laser radars are continuously analyzed to identify blocked areas. This feedback information is used to adjust the detection ranges of adjacent radars, creating a closed-loop control system that automatically compensates for detection gaps without manual intervention.
2Reliability
If the detection range of another laser radar is expanded to detect blocked areas, then object detection performance improves, but processing load and system complexity increase
Solution Approach 1:
The patent applies local quality by selectively expanding the detection range only for specific laser radars that are adjacent to blocked areas, rather than uniformly expanding all radars. This targeted approach focuses computational resources on areas where they are most needed, improving detection coverage while minimizing unnecessary processing load.
Solution Approach 2:
The system implements partial action by expanding detection ranges only when and where blocking is detected, rather than maintaining maximum detection ranges continuously. This selective expansion reduces the average processing load while ensuring adequate coverage when needed, avoiding the excessive action of always operating at maximum capacity.
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 object detection performance by dynamically adjusting detection ranges to cover blocked areas and compensate for radar failures, improving situational awareness and reducing processing load.
Implementation Method 1
The plurality of laser radars irradiate the surroundings of the vehicle with a laser beam and receive the light reflected by an object around the vehicle
Data Source
AI summary
To provide a vehicle-mounted radar system capable of improving object detection performance depending on a situation. The vehicle-mounted radar system includes laser radars 2A to 2D that irradiate the surroundings of a vehicle 1 with a laser beam and receive light reflected by an object around the vehicle 1, and a control device 3 that controls the laser radars 2A to 2D and recognizes an object based on light reception results of the laser radars 2A to 2D. The control device 3 determines whether a laser beam of any of the laser radars 2A to 2D is blocked by the object, and thus an undetected area is created, based on a recognition result of the object. Thus, for example, when the laser beam of the laser radar 2B is blocked by another vehicle 10, and thus an undetected area 11 is created, a detection range of the laser radar 2A adjacent to the laser radar 2B is expanded so that at least a portion of the undetected area 11 is allowed to be detected.