Small Screen Virtual Room Interface for Home Automation
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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, especially on small screens like handheld remote controls or mobile devices, due to small device representations and the difficulty in selecting specific controls without causing unwanted state changes.
Innovation Solution
A virtual room-based user interface is provided, where devices are organized into a sequence on a small screen, allowing users to cycle through representations using a designated control region separate from the selected device, enabling intuitive control without relying on touching individual small device representations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If device representations are displayed on a small screen, then the interface can control multiple devices, but the device representations become exceedingly small and difficult to recognize
Solution Approach 1:
The interface is segmented into two distinct functional areas: a sequence of device representations for selection, and a separate control region for executing control actions. This segmentation allows device representations to be displayed in a compact sequence while providing a dedicated control region that is sufficiently large for accurate input, resolving the contradiction between controlling multiple devices and maintaining recognizability.
2Difficulty of detecting and measuring
If device representations are made larger for better recognition, then usability improves, but the screen space becomes insufficient to display multiple devices
Solution Approach 1:
The interface transitions from a two-dimensional grid layout to a sequence-based linear arrangement combined with a separate control dimension. Device representations are arranged in a time-based sequence rather than spatial grid, allowing multiple devices to be displayed in a compact form while maintaining individual recognizability through the sequence context and separate control region.
3Ease of operation
If users touch individual device representations directly, then device selection is direct, but the risk of inadvertent overlapping and unwanted state changes increases
Solution Approach 1:
A separate control region acts as an intermediary between device selection and control action execution. Users first select a device from the sequence, then interact with the control region to execute the control action. This intermediary control region prevents direct touching of device representations, eliminating the risk of inadvertent overlapping while maintaining reliable device selection through the sequence interface.
Data Source
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AI summary
In one embodiment, a virtual room-based user interface suited for use on a "small screen" is provided that organizes representations of devices in a virtual room into a sequence, allows a user to cycle through the representations of devices in the sequence so only a single one is selected at any given time, and individually control the device corresponding to a selected representation using a designated control region separate from the representation of the selected device.