Touchless Ventilator Control Using 3D Gesture Detection
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Solution Overview
Problem
Current ventilator control systems are complex and require direct interaction, limiting optimal information preparation for human perception and only allowing computer interface access, necessitating an improvement in non-contact operating processes.
Innovation Solution
A device with a detection unit that uses sensors, memory, and an interface to detect and generate digital control commands, featuring a camera or 3D camera to process gestures and send control commands to the ventilator, along with a lighting unit for projecting virtual control elements, enabling intuitive control through gestures and voice recognition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional contact-based control interfaces are used, then reliable control commands are obtained, but the device complexity increases and ease of operation decreases
Solution Approach 1:
The patent replaces mechanical contact-based control interfaces with an optical detection system using cameras and image processing. Users interact by making gestures or facial expressions that are captured by cameras and converted into control commands, eliminating the need for physical contact with buttons or knobs while simplifying the user interaction model
Solution Approach 2:
The patent introduces an image processing unit as an intermediary between the user and the ventilator control system. This intermediary captures visual data from cameras, processes it to recognize gestures or facial expressions, and translates it into control commands, thereby decoupling the user from direct mechanical interaction with the device
2Loss of information
If more information is displayed on traditional displays, then complete information is provided, but human perception cannot optimally process the information
Solution Approach 1:
The patent transitions from traditional 2D flat displays to 3D spatial projection of control elements and information. By projecting virtual control elements and display information into three-dimensional space, the system provides more comprehensive information while maintaining optimal human perception through spatial arrangement and depth cues
3Measurement precision
If direct contact control is used, then precise control commands are obtained, but touchless operation is limited
Solution Approach 1:
The patent substitutes mechanical contact-based control with optical field-based detection. Cameras capture visual information from user gestures or facial expressions, and image processing algorithms extract precise control commands from these visual inputs, maintaining command precision while enabling touchless operation and increasing adaptability to different user needs
Data Source
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AI summary
The invention relates to a device and a method for controlling a ventilator by means of a control command detection unit, wherein the detection unit detects control commands of a user in a detection area of the detection unit, wherein the detection unit has at least one sensor for control commands, a memory, a device for generating digital control commands and an interface for coupling with the ventilator and for sending the control commands to the ventilator.