Head-Mounted LOS Control for Accurate Smart Device Selection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing smart device control systems face challenges in accurately determining the intended device for voice commands in multi-device environments, often leading to control confusion due to reliance on distance alone, without considering the user's line of sight or pitch angle.
Innovation Solution
A smart device control method and system using a head-mounted device with symmetrically arranged positioning devices to calculate the Line of Sight (LOS) deviation angle and pitch angle, determining the intended device based on pre-set values to ensure precise control by aligning with human natural behavior during conversations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If distance-based determination is used to identify the target smart device, then the control system is simple to implement, but the control precision deteriorates in multi-device environments
Solution Approach 1:
The patent transitions from one-dimensional distance-based device identification to three-dimensional spatial positioning by incorporating LOS deviation angle and pitch angle measurements. This dimensional expansion enables precise device identification in multi-device environments by capturing the user's viewing direction and head orientation, thereby resolving the contradiction between system simplicity and identification precision.
2Ease of operation
If only distance information is used for device control determination, then the interaction model is simple, but the user experience deteriorates when the intended device is distant
Solution Approach 1:
The patent introduces LOS deviation angle and pitch angle as intermediary parameters that bridge the gap between simple voice commands and accurate device identification. These angular measurements act as mediators that capture the user's intent to interact with distant devices, resolving the contradiction by maintaining interaction simplicity while improving control reliability through additional spatial context.
3Adaptability or versatility
If multiple smart devices are deployed in a small space, then the system versatility is improved, but the device identification reliability deteriorates due to control confusion
Solution Approach 1:
The patent segments the spatial environment into distinct directional zones by measuring the LOS deviation angle and pitch angle for each smart device relative to the user's position. This segmentation approach allows the system to differentiate between multiple devices in close proximity by assigning each device a unique spatial signature, thereby resolving the contradiction between system versatility and identification reliability.
Data Source
AI summary
The subject matter includes a smart device control method, comprising: receiving a device control instruction, and acquiring device distance information respectively between the first positioning device and each smart device, and between the second positioning device and each smart device: calculating a LOS deviation angle between a wearer of the head-mounted device and each of the smart devices based on the device distance information, wherein the LOS deviation angle is an angle between the wearer's direct LOS and a relative direction of the device, and the relative direction of the device is a direction of a line connecting a midpoint of a connection between the first positioning device and the second positioning device to the smart devices: and determining a smart device with a LOS deviation angle less than a pre-set value as a to-be-controlled device, and sending a device control instruction to the to-be-controlled device.