Vehicle Occupant Detection with Motion-Gated Seating Output
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Solution Overview
Problem
Existing vehicle occupant detection systems inaccurately determine the seating situation of a person when the object is not stationary, leading to incorrect output results.
Innovation Solution
A vehicle occupant detection system that includes an identification device to identify a person, a first detector to measure movement velocity, a second detector to assess seating situation, and a controller to permit or prohibit output based on the detected velocity, ensuring accurate seating determination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the vehicle occupant detection system outputs the seating situation determination result when the object is moving, then the system provides continuous monitoring capability, but the determination accuracy deteriorates due to motion affecting detection reliability
Solution Approach 1:
The system dynamically adjusts its output behavior based on the detected velocity of the object. When velocity exceeds a predetermined threshold, the system switches to a different operational mode where it withholds output of determination results. This dynamic adaptation allows the system to maintain high accuracy by avoiding output during motion while preserving continuous monitoring capability through velocity-based conditional logic.
2Measurement precision
If the vehicle occupant detection system withholds output when the object is moving, then the determination accuracy is maintained, but the continuous monitoring capability is reduced
Solution Approach 1:
The system changes its operational parameters based on velocity conditions. By using velocity as a control parameter, the system transitions between different output states (output enabled when stationary, output disabled when moving). This parameter-based control maintains determination accuracy while preserving the underlying continuous monitoring capability through conditional output logic.
Data Source
AI summary
A vehicle occupant detection system includes: an identification unit that identifies whether or not an object in a vehicle is a person; a first detection unit that detects a velocity at which a person identified by the identification unit moves; a second detection unit that detects a situation regarding seating of the person identified by the identification unit; an output unit that outputs the situation regarding seating of the person, detected by the second detection unit; and a control unit that permits or prohibits output of the situation regarding seating of the person by the output unit on the basis of the velocity at which the person moves, detected by the first detection unit.