Vehicle Radar Transmission Pattern Control for Adaptive Detection
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Solution Overview
Problem
Current vehicle radar systems face challenges in dynamically adjusting detection modes to effectively detect both long-range and short-range objects, leading to inefficient energy consumption and suboptimal detection performance.
Innovation Solution
A radar control apparatus and method that dynamically sets transmission patterns and selects array antennas based on detection distance, location, and target information, allowing for adaptive detection modes to optimize detection performance and reduce energy waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the radar transmits signals continuously to detect both long-range and short-range objects, then the detection coverage is improved, but the energy consumption increases
Solution Approach 1:
The radar system dynamically adjusts transmission patterns based on detected target information. When long-range objects are detected, the system switches to long-range detection mode with appropriate transmission patterns; when short-range objects are detected, it switches to short-range detection mode. This dynamic adaptation allows the radar to maintain comprehensive detection coverage while consuming energy only when and where needed, rather than continuously transmitting at maximum power.
Solution Approach 2:
The system changes transmission parameters (frequency, power, pattern) based on detection requirements. Different transmission patterns are selected depending on whether long-range or short-range objects are present, allowing optimization of energy consumption while maintaining detection effectiveness across varying operational conditions.
2Reliability
If the radar uses a fixed transmission pattern to ensure consistent detection performance, then the detection reliability is improved, but the adaptability to different detection scenarios deteriorates
Solution Approach 1:
The radar system transitions from fixed to dynamic transmission pattern selection. The control unit continuously monitors detection results and adjusts transmission patterns in real-time based on the presence of long-range or short-range objects. This ensures reliable detection performance is maintained through systematic pattern selection while simultaneously adapting to different detection scenarios.
Solution Approach 2:
The system uses feedback from target detection results to adjust transmission patterns. Detection information about object range and position is fed back to the control unit, which then selects appropriate transmission patterns to maintain optimal detection reliability for the current scenario.
3Measurement precision
If the radar activates all array antennas to improve detection accuracy, then the measurement precision is improved, but the device complexity and energy consumption increase
Solution Approach 1:
The array antenna system is segmented into multiple independently controllable units. The control unit selectively activates only the necessary antenna elements based on detection requirements - using more antennas for long-range detection and fewer for short-range detection. This segmentation allows the system to maintain high detection accuracy when needed while reducing complexity and energy consumption during normal operation.
Solution Approach 2:
The system applies partial action by activating only the necessary subset of array antennas rather than all antennas continuously. Full antenna array activation is reserved for situations requiring maximum detection accuracy, while partial activation suffices for routine detection, thereby reducing overall system complexity and energy consumption.
4Adaptability or versatility
If the radar switches detection modes frequently to adapt to changing surroundings, then the adaptability is improved, but the system stability deteriorates
Solution Approach 1:
The radar system implements periodic scanning and detection cycles with structured mode transitions. Rather than switching modes arbitrarily in response to every detected object, the system follows predetermined detection sequences and switches modes based on sustained detection patterns, providing stability while maintaining adaptability to changing environmental conditions.
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
Improves radar detection performance by dynamically adjusting detection modes according to the vehicle's surroundings, enhancing the ability to detect both long-range and short-range objects while minimizing unnecessary energy consumption.
Implementation Method 1
a radar sensor mounted to a vehicle to have an sensing area of an interior or an exterior of the vehicle and configured to capture sensing data
Data Source
AI summary
Disclosed are an apparatus and a method for controlling a radar. More specifically, disclosed is a method of setting detection modes of a radar mounted to a vehicle and controlling radar transmission signals according to the detection modes. An embodiment provides an apparatus for controlling a radar including: a target detector configured to detect targets around a vehicle and classify the detected targets; a transmission pattern setter configured to set a transmission pattern of transmission signals, based on at least one piece of detection distance information of the detected targets, detection location information, detection height information, and information on a number of detected targets; and a transmission signal controller configured to select at least one array antenna from a plurality of array antennas according to the transmission pattern and radiate the transmission signals through the selected array antenna, a method thereof, and a system.