Variable Width Person Support Deck Asynchronous Motor Control
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Solution Overview
Problem
Existing adjustable person support systems lack efficient mechanisms for simultaneously altering the width of multiple deck sections to accommodate varying user needs, often requiring complex manual operations or synchronized motor control to maintain proper alignment and prevent interference.
Innovation Solution
A system comprising a bed controller that independently controls first and second motors to alter the width of corresponding deck sections at different times, along with a manual release assembly for independent extension/retraction, ensuring proper alignment and user convenience through staggered movement and fluid supply system integration for mattress adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If synchronized motor control is used to alter the width of multiple deck sections, then proper alignment is maintained, but the system complexity and control difficulty increase
Solution Approach 1:
The bed frame is divided into multiple independently controllable deck sections, each with its own motor control. This segmentation allows each section to be adjusted independently while maintaining overall alignment, reducing the complexity of synchronized control by treating each section as a separate controllable unit rather than requiring complex coordination of all sections simultaneously.
2Ease of operation
If manual release assembly is provided for independent extension/retraction, then user convenience is improved, but the device complexity increases
Solution Approach 1:
The manual release assembly enables users to independently extend or retract deck sections without requiring complex automated control systems or assistance from others. The mechanism is designed to be操作简单 (easy to operate), allowing users to perform the adjustment themselves by simply operating the release assembly, thus improving ease of operation while keeping the mechanical structure relatively simple.
3Adaptability or versatility
If asynchronous motor operation is implemented for deck sections, then adjustment flexibility is improved, but coordination difficulty increases
Solution Approach 1:
The system implements asynchronous motor operation where each deck section can be adjusted independently at different times and speeds based on specific needs. The control system dynamically determines the adjustment sequence and timing for each section, allowing flexible adaptation to various user requirements while managing coordination through a centralized controller that sequences the asynchronous operations.
Data Source
AI summary
A variable width support system includes an adjustable width person support apparatus (PSA), an adjustable width person support surface (PSS), and first and second controllers. The first controller controls a function of the PSA and receives a first input corresponding to a function of the PSA via a first user interface. The second controller controls a function of the PSS and: a) receives a second input corresponding to a function of the PSS via a second user interface when the first controller is not in communication with the second controller, and b) receives a third input corresponding to a function of the PSS via the first controller when the first controller is in communication with the second controller. The second controller controls a function of the PSS in accordance with the third input when the first controller is in communication with the second controller.