Electrical Adjustable Table Motion Sensing to Prevent Collision Damage
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Solution Overview
Problem
Existing electrical adjustable tables lack a mechanism to detect collisions during height adjustment, leading to potential damage to the table, objects on it, or the obstacle, due to the inability to sense obstacles below or above the table plate.
Innovation Solution
A control method for an electrical adjustable table that includes motion sensors to detect tilting, triggering a warning and stopping the height adjustment when a collision is sensed, and implementing safety modes to prevent further damage by adjusting the table's position or moving it horizontally to avoid obstacles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the table plate is adjusted automatically without obstacle detection, then the height adjustment speed and convenience are improved, but the risk of collision damage increases
Solution Approach 1:
The motion sensor units are positioned to detect obstacles before the table plate reaches them, and the control unit stops the adjustment motor in advance when an obstacle is detected, preventing collision damage while maintaining efficient height adjustment
Solution Approach 2:
The motion sensor units continuously monitor the space below and above the table plate during height adjustment, providing real-time feedback to the control unit which then adjusts the motor operation accordingly to avoid collisions
2Reliability
If motion sensors are added to detect obstacles, then the safety and reliability are improved, but the device complexity increases
Solution Approach 1:
The control unit automatically processes sensor signals and controls the motor without user intervention, and the warning unit automatically alerts users when obstacles are detected, making the system self-managing and reducing operational complexity
Solution Approach 2:
Electronic motion sensors and control circuits replace complex mechanical obstacle detection mechanisms, using optical or electromagnetic fields to detect obstacles without physical contact, thereby improving reliability while keeping the system relatively simple
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
Prevents the table plate from lifting continuously after hitting an obstacle, thereby preventing object fall, damage to the table or obstacle, and ensuring safe operation by automatically initiating a damage prevention mechanism.
Implementation Method 1
at least one motion sensor unit of the electrical adjustable table detects the table plate tilted during adjusting the height of the table plate
Data Source
AI summary
A control method of an electrical adjustable table is provided. The control method of the electrical adjustable table includes following steps. Initialize an internal setting value or a user setting value. Enter a static status. Extend or shrink a table foot for adjusting the height of a table plate heading to a first direction according to an operation to a hand control device. Stop adjusting the height of the table plate when a motion sensor unit is used and detects the table plate tilted during adjusting the height of the table plate. The method effectively prevents the table plate to keep lifting when the table plate hits an obstacle to avoid objects fallen, the obstacle damaged or malfunction of the electrical adjustable table.