Pressure-Sensing Seat Layout for Accurate Leg Motion Detection
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Solution Overview
Problem
Existing vehicle seats lack the ability to enhance entertainability and accurately detect occupant motions, particularly leg movements, while maintaining a compact design without increasing component count.
Innovation Solution
A seat system equipped with pressure sensors and a controller that adjusts the seat and footrest height based on detected pressures, and interacts with a screen to simulate experiences through user motions, using sensors to enhance entertainability and accurately detect leg movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If pressure sensors are added to detect leg motions, then motion detection accuracy is improved, but device complexity increases
Solution Approach 1:
The seat cushion is divided into multiple regions with pressure sensors strategically placed only where needed to detect leg motions (front, middle, rear portions), rather than covering the entire seat surface. This segmentation approach enables accurate leg motion detection while minimizing the number of sensors required.
Solution Approach 2:
The pressure sensors serve multiple functions: detecting leg motions for entertainment purposes, monitoring sitting posture for health guidance, and potentially controlling seat adjustments. This multi-functionality reduces the need for separate sensor systems for different purposes.
2Volume of moving object
If seat cushion is made removable for compact storage, then storage convenience is improved, but ease of operation deteriorates
Solution Approach 1:
The seat cushion is designed to be stored within or alongside the seat frame structure, nesting the removable cushion into the existing seat configuration. This allows compact storage without requiring separate storage space or complex attachment mechanisms.
Solution Approach 2:
The seat cushion incorporates self-aligning features or gravity-assisted attachment mechanisms that automatically guide the cushion into its correct position during installation, reducing the operational effort required by the user.
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 system improves entertainability by simulating animal interactions and adjusting seat surfaces based on user motions, while maintaining a compact design with minimal components.
Implementation Method 1
a plurality of pressure sensors provided on the seat to detect a sitting posture of an occupant seated on the seat
Data Source
AI summary
A seat system includes a seat, a controller, and a terminal. The seat includes a seat body, and a plurality of sensors configured to acquire information for use in detecting a motion of a user seated on the seat body. The controller is configured to acquire the information from the sensors. The terminal comprises a screen. The controller is configured to cause an object operated by the user to move based on the information acquired from the sensors, and to cause a movable object on the screen to move according to a motion of the object operated by the user.