Child Safety Seat Buckle-Triggered Occupancy Alert
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Solution Overview
Problem
Child safety seats do not effectively prevent children from being left in cars due to negligence, which can lead to severe safety hazards and fatalities.
Innovation Solution
A child safety seat equipped with a detection mechanism that includes a detector and trigger mechanism, activated by the buckling of a crotch strap buckle assembly, which switches the detector to a working state to alert the user if the child is left in the car by monitoring the distance or time since the car was vacated.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a child safety seat is designed with basic protective functions, then child protection during travel is improved, but the system cannot detect or alert when a child is left in the car
Solution Approach 1:
The patent implements a feedback mechanism where a detector continuously monitors whether the child is still in the car, and an alarm provides feedback to the user when the child is left behind. The system uses a trigger mechanism that activates the detector based on seat occupancy status, creating a closed-loop monitoring system that alerts parents to forgotten children.
Solution Approach 2:
The system performs preliminary actions by detecting seat occupancy and activating the detector before the dangerous situation (child left in car) occurs. The trigger mechanism is pre-configured to activate the detector when the seat is occupied, enabling proactive monitoring rather than reactive response.
2Loss of information
If a detection mechanism is added to the child safety seat, then child presence monitoring is improved, but the device complexity increases
Solution Approach 1:
The patent makes the detection mechanism multi-functional by using the existing seat structure components (crotch strap, buckle assembly) to serve dual purposes: both securing the child and triggering the detection system. The driving portion is integrated into the buckle mechanism, allowing the same structural elements to perform both safety restraint and detection activation functions.
Solution Approach 2:
The patent merges the detection mechanism with the existing seat structure by integrating the detector, trigger mechanism, and driving portion into the seat's fabric and buckle system. This combination eliminates the need for separate, complex detection hardware, reducing overall device complexity while maintaining detection capability.
3Measurement precision
If the detector is always in working state, then detection accuracy is improved, but energy consumption increases
Solution Approach 1:
The patent implements periodic action by using the trigger mechanism to activate the detector only when needed (when the seat is occupied). The system transitions between active and inactive states based on occupancy detection, creating a periodic operation pattern that reduces energy consumption while maintaining detection accuracy during critical periods.
Solution Approach 2:
The system performs preliminary detection of seat occupancy and only activates the main detector when occupancy is detected. This preliminary action filters out unnecessary detection cycles during empty periods, reducing energy consumption while ensuring the detector is active and accurate when a child is present.
Data Source
AI summary
A child safety seat is provided and includes a seat body, a driving portion and a detection mechanism. The driving portion is rotatably connected to the seat body. The detection mechanism includes a detector and a trigger mechanism. The detector is in a non-working state when the trigger mechanism is in an open state. The detector is in a working state when the trigger mechanism is in a closed state. The driving portion is rotatably operated to switch the trigger mechanism from the open state to the closed state, so as to switch the detector to the working state. The child safety seat can prevent a dangerous scenario where a child is left in a car.