Detachable Seat Sensor Module Mounting for Stable Biometric Detection
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Solution Overview
Problem
Existing vehicle seat biological sensors are difficult to remove and replace, leading to a lack of versatility and instability in detecting biological signals due to adhesive fixation, which affects seating comfort and functionality.
Innovation Solution
A sensor unit with a detachable biological sensor and communication unit, housed in a sensor holder that can be easily attached and detached from various seats, including vehicle seats, using a wireless communication system and battery unit, and positioned to prevent direct contact with skin or cushion materials, ensuring stable signal detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the biological sensor is fixed to the cushion pad with an adhesive, then the sensor is securely attached to the seat, but the sensor cannot be easily removed or replaced
Solution Approach 1:
The sensor system is divided into separate components: the biological sensor unit and the cushion pad are detachably connected rather than permanently bonded. This allows the sensor to be segmented from the seat structure, enabling easy removal and replacement while maintaining secure attachment during use through the attachment portion mechanism.
Solution Approach 2:
The attachment portion provides a dynamic connection that transitions between attached and detached states. This dynamic mechanism allows the sensor to be securely fixed during operation for reliable signal detection, yet easily removed when needed for replacement or repositioning, resolving the contradiction between stable attachment and replaceability.
2Manufacturing precision
If the biological sensor is fixed with adhesive, then the sensor remains in position, but the sensor position shifts due to lack of fixation to skin material
Solution Approach 1:
The attachment portion acts as an intermediary element between the sensor and the cushion pad. It provides a dedicated fixation interface that secures the sensor in the correct position on the cushion pad, preventing position shifts during seat movement or occupancy. This intermediary mechanism ensures both precise positioning and stable signal detection without requiring direct adhesive bonding to skin materials.
3Adaptability or versatility
If the sensor unit is integrated into the seat with complex control units and power supplies, then the seat has advanced functionality, but the assembly configuration becomes complex
Solution Approach 1:
The biological sensor unit is extracted as a separate, self-contained module from the seat structure. By removing the sensor from the complex seat assembly and providing it with its own attachment portion for simple connection to the cushion pad, the invention simplifies the overall assembly configuration while maintaining advanced sensing functionality. The sensor unit can be independently attached, detached, and replaced without affecting the seat's other components.
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 solution allows for easy attachment and detachment of the sensor unit across different seating types, enhances signal stability, and improves seating comfort by preventing positional shifts and simplifying assembly, while eliminating the need for complex control units or power supplies.
Implementation Method 1
a biological sensor that detects a biological signal of the human
Data Source
AI summary
To provide a sensor unit that can be easily attached to and detached from a seat in which a seated occupant is seated, and a seat equipped with a sensor unit. A sensor unit includes a sensor module including a biological sensor that detects a biological signal of a seated occupant, and a wireless communication unit that is connected to the biological sensor to wirelessly transmit the detected biological signal to an outside; and a sensor holder that holds the sensor module. The sensor holder includes a seat attachment portion detachably attached to an attached portion that is provided in a front surface of a seat cushion at a position at which the seated occupant is abuttable against the attached portion.