Timing reminding method and reminding apparatus for height-adjustable table
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Solution Overview
Problem
Users often forget to alternate between sitting and standing postures while using height-adjustable tables, leading to potential health issues due to prolonged bending over a fixed table height.
Innovation Solution
A timing reminding method and apparatus for height-adjustable tables that detects user posture and presence, reminding users to change postures at preset intervals using sensors like pyroelectric infrared, photoelectric, and motion sensors, and providing alerts through sound or LED reminders.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If users work at a fixed table height for extended periods, then productivity is maintained, but health issues arise due to prolonged static postures
Solution Approach 1:
The table height is made dynamically adjustable between sitting and standing positions. The height-adjustable table allows users to switch between different heights, enabling posture alternation without leaving the workspace, thus maintaining productivity while preventing health issues.
Solution Approach 2:
The system uses sensors (pyroelectric infrared sensor, photoelectric sensor, motion sensor) to detect user presence and posture, providing feedback through timing reminders. The controller monitors usage duration and triggers reminders to change postures, creating a closed-loop feedback system that guides healthy behavior.
2Object-affected harmful factors
If users alternate between sitting and standing postures according to scientific timing, then health issues are reduced, but users may forget to adjust postures due to being busy
Solution Approach 1:
The system automatically monitors user posture and timing without requiring active user intervention. The sensors continuously detect user presence and table height, the controller calculates usage duration, and the reminding unit automatically triggers alerts, making the health-monitoring system self-operating.
Solution Approach 2:
The system provides automated feedback through timing reminders when users need to change postures. The controller tracks usage time and triggers the reminding unit (sound or LED alerts) at predetermined intervals, guiding users to adjust postures without requiring them to manually track time.
3Measurement precision
If multiple sensors are integrated to accurately detect user posture and presence, then detection accuracy is improved, but device complexity increases
Solution Approach 1:
Multiple sensors (pyroelectric infrared sensor for presence detection, photoelectric sensor for height detection, motion sensor for movement detection) are merged into a coordinated detection system. The controller integrates signals from all sensors to comprehensively determine user presence and posture, achieving accurate detection through sensor fusion.
Solution Approach 2:
The sensor system is designed to perform multiple functions: the pyroelectric infrared sensor detects both presence and movement, the photoelectric sensor measures table height to determine posture, and the motion sensor detects table movement. This multi-functional sensor design reduces the need for separate specialized sensors.
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
Ensures users adjust their posture in a timely and accurate manner, reducing the risk of occupational health issues by integrating sensors to monitor and remind of posture changes.
Implementation Method 1
the thermal infrared of the user is detected by a pyroelectric infrared sensor
Implementation Method 2
the use posture of the user is judged by detecting the height of the height-adjustable table by using a first photoelectric sensor
Data Source
AI summary
A timing reminding method and reminding apparatus for a height-adjustable table. According to the method, by detecting whether a timing starting condition is currently achieved, detecting a posture of a user, and determining a reminding time and starting timing, the user can be reminded to adjust the use posture of the height-adjustable table conveniently and accurately in time. The timing reminding apparatus implements the above timing reminding method.