Posture Detection System for Head-Mountable Devices
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Solution Overview
Problem
Head-mountable devices, used for immersive experiences, often require users to remain stationary, which can lead to prolonged periods of stasis, negating health benefits associated with body motion, and there is a need to encourage users to move without disrupting their experience.
Innovation Solution
Incorporating a posture detection system with sensors like IMUs and cameras to detect user posture and stasis, and providing visual, auditory, or haptic feedback to prompt users to adjust their position and promote healthy movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If users wear head-mountable devices for immersive experiences, then visual information display capability is improved, but user health benefits deteriorate due to prolonged stasis
Solution Approach 1:
The system continuously monitors user posture through sensors (accelerometers, gyroscopes, cameras) and provides real-time feedback via visual, auditory, or haptic signals when stasis is detected. This feedback loop encourages users to adjust their posture and move, thereby maintaining health benefits while using the immersive device.
Solution Approach 2:
The device automatically detects user posture and determines when movement is needed without requiring external intervention. The system self-manages the monitoring and feedback processes, enabling users to maintain healthy habits autonomously during immersive experience usage.
2Measurement precision
If posture detection system is added to head-mountable device, then user health monitoring is improved, but device complexity increases
Solution Approach 1:
The system uses existing head-mountable device components (cameras, sensors, processors) for multiple purposes: original immersive display functions plus posture detection and health monitoring. This multi-functionality approach reduces the need for entirely separate systems while achieving accurate posture measurement.
Solution Approach 2:
The patent employs software algorithms and processing logic as intermediaries to bridge the physical sensors and the feedback mechanisms. These intermediaries analyze sensor data, determine posture states, and trigger appropriate feedback, thereby managing system complexity through modular information processing layers.
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
Enables users to maintain an immersive experience while encouraging beneficial body motion, thereby promoting health benefits such as comfort, flexibility, and mobility without requiring them to remove the device.
Implementation Method 1
The detections can be based on operations of an inertial measurement unit of the head-mountable device
Implementation Method 2
The detections can be based on operations of a depth sensor of the head-mountable device
Implementation Method 3
The detections can be based on operations of an eye sensor of the head-mountable device
Data Source
AI summary
While head-mountable devices can provide immersive experiences, a user wearing a head-mountable device can also benefit from activities that include body motion and promote the user's health. Because such activities may not be intrinsically necessary to the operation of head-mountable devices, it can be beneficial to provide additional or modified operations that allow a user to continue operation of a head-mountable device while performing the desired body motions. The head-mountable device can detect movement and/or stasis of the user and determine whether motion would be recommended. Upon determining that motion, an additional motion, or a different motion would be beneficial, the head-mountable device can provide an output to the user that promote such motions. The output can include a notification to the user and/or a modification of the user interface that encourages the user to move in a particular way.