Virtual Room Interface for Small Screen Device Control
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Solution Overview
Problem
Existing user interfaces for home automation systems, both mechanical switches and button-centric on-screen interfaces, face challenges in usability when controlling multiple devices in large spaces, especially on small screens where device representations are too small and difficult to select accurately.
Innovation Solution
A virtual room-based user interface for small screens organizes device representations into a sequence, allowing users to cycle through them and control individual devices using a designated control region separate from the device representation, dynamically updating the interface to reflect state changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If device representations are displayed on a small screen, then all devices can be controlled in a compact space, but the representations become too small and difficult to select accurately
Solution Approach 1:
The interface is segmented into two functional zones: a device representation area and a separate control region. This segmentation allows the device representations to remain small and space-efficient while providing a dedicated, larger control region for accurate input, resolving the contradiction between compact display and selection precision.
Solution Approach 2:
A separate control region acts as an intermediary between the user and the device representations. Instead of requiring direct interaction with the small device icons, users interact with the control region which then applies the control to the selected device, eliminating the need for precise selection of tiny representations.
2Adaptability or versatility
If multiple devices are controlled using traditional button interfaces, then device control functionality is provided, but usability decreases as the number of switches increases
Solution Approach 1:
The control region serves as a universal control mechanism that can be applied to any device in the sequence. Instead of having separate controls for each device, a single control region handles all device controls, maintaining full device control capability while dramatically improving ease of operation.
Solution Approach 2:
The interface dynamically updates to reflect the currently selected device in the sequence. As users navigate through devices, the control region adapts its context to the selected device, providing intuitive control without requiring users to memorize switch-device relationships.
3Measurement precision
If device representations are made larger for easier selection, then selection accuracy improves, but the screen space for controlling multiple devices is reduced
Solution Approach 1:
By separating the device representation function from the control function into different regions, the interface can maintain small device representations for space efficiency while providing a larger control region for accurate input, avoiding the need to enlarge device icons.
Solution Approach 2:
The interface moves the control interaction to a different spatial dimension by introducing a separate control region rather than requiring direct interaction with device representations. This dimensional separation allows small representations to coexist with large, easy-to-hit control targets.
Data Source
AI summary
In one embodiment, a virtual room-based user interface is provided. The interface displays a view of a virtual room that corresponds to a physical room and that includes a representation of a first device present in the physical room and at least one of a portion of structure of the physical room or a portion of furnishings present in the physical room. User input is received via the interface that indicates a change of state in the physical room. In response to the user input, a change is caused to a state provided by the first device, and the interface dynamically updates appearance of the virtual room to change appearance of the representation of the first device and at least one of the portion of the structure of the physical room or the portion of the furnishings present in the physical room to reflect the change to the state.