ADAS Signal Processing for Sensor Capability Adaptation
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Solution Overview
Problem
Current Advanced Driving Assistant Systems (ADAS) lack optimal control due to variations in distance detection sensor capabilities, which are influenced by sensor types and environmental conditions, leading to suboptimal driving assistance.
Innovation Solution
A signal processing apparatus and method that determine the safety of preceding vehicles based on sensor-related information from relevant sensors, generating control signals for the host vehicle to adjust settings such as following distance, braking timing, and collision warnings, considering the capabilities of both the host vehicle's and preceding vehicle's sensors, as well as environmental factors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ADAS uses distance detection sensors to control driving assistance, then driving assistance function is provided, but control appropriateness deteriorates due to sensor capability variations
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting control parameters (such as following distance, warning thresholds, and control intensity) based on the detected sensor capability level. The system changes operational parameters to match the actual performance characteristics of the distance detection sensor being used, thereby maintaining reliable driving assistance across different sensor types and conditions.
Solution Approach 2:
The system implements dynamics by making the driving assistance control adaptive and dynamic rather than static. The control apparatus continuously monitors sensor-related information and adjusts control behavior in real-time based on the current sensor's detection capabilities, environmental conditions, and traffic situations, allowing the system to optimize performance for each specific operating context.
2Device complexity
If ADAS applies uniform control settings for all vehicles, then system complexity is reduced, but control appropriateness deteriorates due to ignoring sensor variations
Solution Approach 1:
The patent applies segmentation by dividing the control system into modular components: a sensor capability detection module, a parameter determination module, and a control execution module. This segmentation allows the system to handle sensor variations through structured information processing without creating excessive overall complexity, as each module performs a specific function independently.
Solution Approach 2:
The system implements feedback by using sensor-related information as feedback input to continuously adjust control parameters. The control apparatus receives feedback about sensor detection capabilities and environmental conditions, then modifies control settings accordingly, creating a closed-loop system that maintains appropriateness without requiring complex pre-programming for every scenario.
3Reliability
If ADAS increases following distance for manually driven preceding vehicles, then safety is improved, but control appropriateness deteriorates due to lack of sensor capability consideration
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the following distance parameter based on the detected sensor capability level of the preceding vehicle. Rather than applying a fixed increased following distance for all manually driven vehicles, the system modifies this parameter according to the specific sensor capabilities detected, optimizing safety while maintaining control appropriateness for each situation.
Data Source
AI summary
There is provided a signal processing apparatus, a signal processing method for appropriate driving control. The signal processing apparatus includes a safety determination unit that determines safety of a preceding vehicle on a basis of sensor-related information related to a sensor provided in the preceding vehicle, the sensor being relevant to a safety function, and a control signal generation unit that generates, on a basis of a result of the determination of the safety, a control signal for controlling a host vehicle.