Object Detection Noise Notification Thresholds for Driving Modes
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Solution Overview
Problem
Existing object detection systems face challenges in providing accurate notifications about the limitation of their detection function due to high noise states, particularly in varying usage conditions such as forward and backward driving modes, leading to reduced user convenience.
Innovation Solution
An object detection device equipped with a condition judgment unit and a noise processing unit that differentiates between forward and backward driving modes, adjusting noise-related notifications accordingly, ensuring that the system provides clear alerts only when necessary, thus maintaining user convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If noise-related notifications are provided uniformly for all driving modes, then the system provides consistent alerting behavior, but user convenience deteriorates due to excessive false alerts in forward driving mode
Solution Approach 1:
The patent applies different noise judgment criteria for different driving modes (front-facing vs. rear-facing sensors). The judgment criterion for rear-facing sensors in backward driving mode is set to be more sensitive than for front-facing sensors in forward driving mode, allowing the system to provide appropriate notifications based on local operational context rather than using a uniform standard across all conditions.
Solution Approach 2:
The system dynamically adjusts the noise judgment criterion based on the current driving mode. When the vehicle is in backward driving mode using rear-facing sensors, the system adopts a lower threshold for noise detection, whereas in forward driving mode it uses a higher threshold. This dynamic adaptation prevents false alerts during forward driving while maintaining reliable noise detection during backward driving.
2Reliability
If the noise judgment criterion is set to be sensitive for all driving modes, then noise detection reliability is improved, but false alerts increase during forward driving mode
Solution Approach 1:
The patent establishes different judgment criteria for different sensor orientations. Rear-facing sensors used during backward driving have a more sensitive noise judgment criterion, while front-facing sensors used during forward driving have a less sensitive criterion. This local differentiation ensures high detection reliability where needed while minimizing false alerts in other conditions.
Solution Approach 2:
The system changes the noise judgment parameter (threshold value) based on the driving mode. For backward driving mode, the noise judgment criterion is set to a lower threshold value, making the system more sensitive to noise. For forward driving mode, the threshold is raised to reduce false alerts. This parameter adaptation resolves the contradiction between detection sensitivity and false alert reduction.
3Object-generated harmful factors
If the noise judgment criterion is set to be less sensitive for backward driving mode, then false alerts are reduced, but noise detection reliability deteriorates
Solution Approach 1:
The patent recognizes that different operational contexts require different detection sensitivities. Since backward driving mode involves limited visibility and higher risk, the system applies a more sensitive noise judgment criterion specifically for rear-facing sensors during backward driving. This localized high sensitivity ensures reliable noise detection precisely when it is most critical, while front-facing sensors maintain lower sensitivity to avoid false alerts during normal forward driving.
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
The solution effectively notifies users of detection limitations in high noise states, particularly in backward driving modes where visibility is limited, enhancing user convenience by minimizing false alerts and ensuring accurate operation.
Implementation Method 1
a plurality of object detection sensors mounted to the own vehicle, the plurality of object detection sensors transmitting an exploration wave externally from the own vehicle and receiving a reflected wave of the exploration wave reflected by the object
Data Source
AI summary
An object detection device includes a condition judgment unit and a noise processing unit. The condition judgment unit judges whether an execution condition for starting an object detection operation is satisfied. The noise processing unit performs a noise-related notification corresponding to an occurrence of limitation of an object detection function due to a high noise state when the condition judgment unit judges that the execution condition is satisfied and when the high noise state is established, the high noise state being a state in which a reception state of extraneous noise, different from the reflected wave received by the plurality of object detection sensors, exceeds a predetermined judgment criterion. The object detection device is configured to perform the noise-related notification more easily when a driving mode of the own vehicle is a backward driving mode than when the driving mode is a forward driving mode.