Camera-Guided Radar Detection for Accurate Low-Power Target Sensing
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Solution Overview
Problem
Conventional radar devices used in VR or AR applications suffer from inaccurate target detection, leading to reduced overall detection accuracy.
Innovation Solution
A detection device comprising a camera module, image processing module, and radar module, which operates in two resolution modes to enhance detection accuracy and reduce power consumption by defining a target sensing zone and adjusting radar settings accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the radar module operates continuously in high resolution mode to improve detection accuracy, then measurement precision is improved, but power consumption increases
Solution Approach 1:
The radar module dynamically switches between first resolution mode (low power) and second resolution mode (high precision) based on detection needs. The image processing module triggers mode switching when a target sensing zone is identified, allowing the system to maintain high detection accuracy when needed while consuming less power during normal operation.
Solution Approach 2:
The system uses periodic image capture and analysis to trigger radar mode switching. The camera module captures images at specific intervals, and when a target is detected in the image, the radar module transitions to high-resolution mode for precise detection, then returns to low-resolution mode, creating a periodic pattern of high and low power states.
2Measurement precision
If the radar module operates in high resolution mode to improve detection precision, then measurement precision is improved, but the detection speed decreases
Solution Approach 1:
The camera module performs preliminary target detection by capturing images and analyzing them to define a target sensing zone. This preliminary action identifies potential targets before the radar module engages in high-resolution detection, allowing the system to prepare for precise detection in advance and reduce the time spent in high-resolution mode.
Solution Approach 2:
The radar module dynamically adjusts its operation based on real-time detection needs. When the image processing module identifies a target, the radar switches to second resolution mode for precise detection of that specific portion. When no target is present, it operates in first resolution mode, maintaining fast detection speed while consuming fewer resources.
3Adaptability or versatility
If the radar module uses a larger sensing zone to improve target detection coverage, then adaptability is improved, but measurement precision decreases
Solution Approach 1:
The system segments the detection process into two stages: broad coverage screening by the camera module to identify potential targets, and focused high-resolution detection by the radar module on the specific target sensing zone. This segmentation allows the system to maintain both wide adaptability in target acquisition and high precision in target identification.
Solution Approach 2:
The radar module applies different detection qualities to different regions. The image processing module defines a specific target sensing zone where high-resolution radar detection is applied, while other regions use lower-resolution or no detection. This local quality approach maintains high precision where needed while preserving overall system adaptability.
Data Source
AI summary
A detection device for detecting an object includes a camera module, an image processing module, and a radar module. The camera module obtains an image of the object. The image processing module analyzes the image, so as to define the target sensing zone and generate a radar setting value. The radar module is controlled by the image processing module. The radar module is selectively operated in a first resolution mode or a second resolution mode. Initially, the radar module is operated in the first resolution mode. In the second resolution mode, the radar module detects a specific portion of the object within the target sensing zone according to the radar setting value.