Smart desk and chair
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Solution Overview
Problem
Traditional office desks are inflexible and do not accommodate changes in user posture, leading to fatigue and discomfort during extended periods of seating or standing.
Innovation Solution
A smart desk and chair system with integrated wireless communications, featuring lift arms, sensors, and a control module that automatically adjusts the desk height based on user position, allowing for seamless transitions between seated and standing positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the desk height is fixed, then the structure is simple and stable, but the user cannot change posture or adjust to standing position, leading to fatigue
Solution Approach 1:
The desk height is made dynamically adjustable through electric motors that drive the lift mechanism, allowing the desk to transition between fixed and adjustable states. This enables the desk to adapt to different user needs (seated or standing positions) while maintaining structural stability when adjusted to a desired height.
Solution Approach 2:
The manual mechanical adjustment system is replaced with an electric motor-driven system. The motor receives control signals (via wireless communication or panel input) and automatically adjusts the desk height, eliminating the need for manual cranking or mechanical levers while providing precise and smooth height transitions.
2Ease of operation
If manual height adjustment is used, then the device complexity is low, but the user must manually change height which is inconvenient and time-consuming
Solution Approach 1:
The desk height adjustment system operates autonomously based on user input. When the user presses a button on the control panel or sends a wireless command, the system automatically activates the motor to adjust the desk to the desired height without requiring manual intervention or physical effort from the user.
Solution Approach 2:
Manual mechanical adjustment is replaced with an automated electric motor system controlled by electronic circuits and microprocessors. This substitution provides convenient button-controlled or wireless-adjustment functionality while maintaining relatively simple overall system architecture.
3Adaptability or versatility
If the desk structure is simple, then manufacturing is easy, but the desk cannot accommodate different user heights or standing positions
Solution Approach 1:
The desk structure is segmented into modular components: a fixed base, adjustable lift mechanism, and height-adjustable tabletop. This segmentation allows each component to be manufactured independently using standard processes, then assembled together. The modular design facilitates mass production while enabling height adjustability through the interchangeable lift mechanism.
Solution Approach 2:
The desk is designed with universal adaptability to accommodate different user heights and positions. The height-adjustable mechanism serves multiple functions: supporting seated work, standing work, and transitional positions. This multi-functionality is achieved through a standardized adjustment range that covers most user needs without requiring multiple specialized desk models.
Data Source
AI summary
A smart desk and chair includes a desk having at least one lift arm that is expandable and retractable for adjusting the height of a desk surface and a chair having a sensor included inside a chair seat where the sensor detects the presence or absence of a user seated in the chair. A controller in the desk controls the position of the at least one lift arm in the desk. The desk and chair are connected wirelessly enabling the desk surface to be automatically raised or lowered in relation to the floor depending on the standing or seated position of the user.