Ventilator Gesture Control With 3D Virtual Operating Interface
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Solution Overview
Problem
Existing ventilators face challenges in optimizing information presentation for human perception, leading to complex user interactions, and require more intuitive and intelligent operating concepts.
Innovation Solution
A contactless detection system using a 3D camera or TOF camera with a detection region, processing and evaluating gestures, and projecting virtual operating elements, allowing for control commands to be transmitted to the ventilator via an interface, enabling three-dimensional interaction and improved user control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional two-dimensional display and physical operating elements are used, then the ventilator structure remains simple, but the user interaction becomes complex and unintuitive
Solution Approach 1:
The patent replaces physical operating elements (mechanical buttons, switches) with a camera-based detection system that captures gestures and movements. The camera detects user actions in the detection region and converts them into control commands, eliminating the need for complex physical interfaces while improving ease of operation.
Solution Approach 2:
The patent creates a virtual copy of the operating interface by projecting virtual operating elements into the detection region. This virtual interface mirrors the functionality of physical elements but can be manipulated through gestures, providing an intuitive interaction model that reduces operational complexity.
2Loss of information
If more information is presented on the display, then the information completeness improves, but the human perception and processing capability is overwhelmed
Solution Approach 1:
The patent transitions from two-dimensional display to three-dimensional spatial presentation by projecting virtual operating elements and information into the detection region. This adds a spatial dimension to information presentation, allowing users to interact with information in a more natural, three-dimensional space that better matches human perception capabilities.
Solution Approach 2:
The patent segments information and operating elements into distinct virtual components projected at different positions in the detection region. This spatial segmentation allows users to focus on specific information or controls as needed, preventing cognitive overload while maintaining comprehensive information availability.
3Ease of operation
If contactless gesture detection is implemented, then the user control intuitiveness improves, but the device complexity and cost increase
Solution Approach 1:
The patent makes the camera serve multiple functions: it detects gestures for control, captures images for virtual interface projection, and can potentially monitor the environment. This multi-functionality reduces the need for separate dedicated gesture sensors, thereby limiting the increase in device complexity while maintaining contactless control capabilities.
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
The system enhances user interaction by providing a virtual, three-dimensional display and operating elements, allowing for intuitive control of ventilator functions from a distance, improving information presentation and reducing complexity, thus enhancing user experience and operational efficiency.
Implementation Method 1
The illumination unit emits light in the visible range and/or in the infrared spectral range
Implementation Method 2
the detection unit is embodied as a 3D camera or a TOF camera with a detection region
Data Source
AI summary
The invention relates to an apparatus and a method for controlling a ventilator by means of a detection unit for control commands, wherein the detection unit detects control commands of a user in a detection region of the detection unit, the detection unit comprising at least one sensor for control commands, a memory, an apparatus for producing digital control commands and an interface for coupling to the ventilator and for transmitting the control commands to the ventilator.