Collision Determination Unit Prioritizing Image Sensor Data
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Solution Overview
Problem
Existing collision determination systems experience discontinuity in collision detection when the state of the target changes, leading to driver discomfort during vehicle control operations, as they preferentially rely on radar sensor data over image sensor data.
Innovation Solution
A collision determination device and method that prioritizes image detection unit data over radar detection unit data when both sensors detect an object, generating a composite target with adjustable threshold values to maintain continuous collision determination, ensuring consistent detection results.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If collision determination is performed preferentially using radar sensor data over image sensor data, then measurement precision is improved, but continuity of collision determination is lost when target state changes
Solution Approach 1:
The patent applies dynamics by making the sensor selection dynamic rather than static. The collision determination unit switches between preferentially using image sensor data and radar sensor data based on the detection state. When an object is detected by both sensors, image sensor data is preferred; when detected by only one sensor, that sensor's data is used. This dynamic adaptation ensures continuity of collision determination while maintaining detection precision.
Solution Approach 2:
The patent changes the parameter of sensor priority based on detection conditions. The system monitors whether objects are detected by both sensors or only one sensor, and adjusts the priority parameter accordingly. This parameter change allows the system to maintain continuity of collision determination by adapting to target state changes while preserving measurement precision through appropriate sensor selection.
2Reliability
If collision determination switches between image sensor data and radar sensor data based on detection state, then continuity is maintained, but device complexity increases
Solution Approach 1:
The patent segments the collision determination process into distinct cases based on detection state. The control unit evaluates specific conditions: whether an object is detected by both sensors, or only by one sensor. This segmentation of the control logic into clear, discrete decision branches simplifies implementation while maintaining continuity, avoiding the need for complex continuous adjustment mechanisms.
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 approach maintains the continuity of collision determination even when the target state changes, reducing driver discomfort during collision avoidance operations by preferentially using image detection unit data when both sensors detect an object, thus ensuring accurate and consistent collision assessment.
Implementation Method 1
a radar detection unit that detects an object around a vehicle using a radar wave
Implementation Method 2
an image detection unit that captures an image of the surroundings of the vehicle and detects the object using the captured image
Data Source
AI summary
A collision determination device includes: a radar detection unit that detects an object around a vehicle using a radar wave; an image detection unit that captures an image of the surroundings of the vehicle and detects the object using the captured image; and a collision determination unit that determines a collision between the vehicle and the object on the basis of a composite target which is generated using a detection result of the radar detection unit and a detection result of the image detection unit. When the object is detected by the radar detection unit and the image detection unit after being detected only by the image detection unit of the radar detection unit and the image detection unit, the collision determination unit performs the collision determination, preferentially using the detection result of the image detection unit over the detection result of the radar detection unit.