Radar Apparatus Adaptive Emission Control for Power Optimization
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Solution Overview
Problem
Radar apparatuses face increased power consumption when repeatedly emitting laser light to improve detection accuracy, particularly in divided regions, which hampers efficient operation.
Innovation Solution
Incorporating a light emission instructing unit and a determination unit that reduce the number of emissions and emission intensity in designated regions when the vehicle is performing specific movements, such as lane changes, allowing for adaptive power management based on vehicle movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If laser light is repeatedly emitted to each divided region to improve detection accuracy, then detection accuracy is improved, but power consumption increases
Solution Approach 1:
The patent applies local quality by differentiating light emission strategies for different regions. The measurement region is divided into multiple divided regions, and the light emission control unit selectively reduces the number of emissions or emission intensity for specific divided regions based on vehicle movement state, while maintaining normal emission for other regions. This ensures detection accuracy is preserved where needed while reducing power consumption in regions where it can be relaxed.
Solution Approach 2:
The patent implements dynamics by making the light emission parameters adaptive to the vehicle's movement state. The determination unit detects whether the vehicle is performing designated movement (e.g., lane changes), and the light emission control unit dynamically adjusts emission parameters accordingly. When designated movement is detected, emissions to certain divided regions are reduced; when not detected, normal emission continues. This dynamic adaptation resolves the contradiction between detection accuracy and power consumption.
2Use of energy by moving object
If the number of light emissions is reduced to decrease power consumption, then power consumption is reduced, but detection accuracy deteriorates
Solution Approach 1:
The patent applies local quality by differentiating light emission strategies for different regions. The measurement region is divided into multiple divided regions, and the light emission control unit selectively reduces the number of emissions or emission intensity for specific divided regions based on vehicle movement state, while maintaining normal emission for other regions. This ensures detection accuracy is preserved where needed while reducing power consumption in regions where it can be relaxed.
Solution Approach 2:
The patent implements dynamics by making the light emission parameters adaptive to the vehicle's movement state. The determination unit detects whether the vehicle is performing designated movement (e.g., lane changes), and the light emission control unit dynamically adjusts emission parameters accordingly. When designated movement is detected, emissions to certain divided regions are reduced; when not detected, normal emission continues. This dynamic adaptation resolves the contradiction between detection accuracy and power consumption.
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
This configuration reduces power consumption while maintaining detection accuracy by adjusting emission parameters according to the vehicle's movement, optimizing energy use during designated operations like lane changes.
Implementation Method 1
light reflected by an object in response to the emitted light is received by a light receiver
Data Source
AI summary
The radar apparatus includes a light emission instructing unit and a determination unit. The light emission instructing unit is configured to instruct the emission unit to emit light into the search region. Further, the light emission instructing unit is configured to reduce at least one of the number of times of emission, the emission frequency, and the emission intensity for a predetermined designated region, when the own vehicle is performing the designated movement compared to when the own vehicle is not performing the designated movement.