HMD Controller Brightness Adjustment via Illuminance Feedback
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Solution Overview
Problem
Head-mounted display (HMD) devices face challenges in efficiently managing power consumption for light emitting elements in controllers, leading to potential malfunctions due to excessive power usage and overcurrent issues, especially when providing augmented reality experiences.
Innovation Solution
An electronic device system that includes a head-mounted display (HMD) device and a controller, where the HMD measures external illuminance and transmits a brightness adjustment signal to the controller to adjust the light emitting element's brightness based on environmental conditions, optimizing power usage and preventing malfunctions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the maximum allowable voltage is increased to prevent malfunction, then the reliability is improved, but the power consumption increases
Solution Approach 1:
The patent implements dynamic brightness adjustment of the light emitting element based on real-time illuminance detection. The controller device adjusts the brightness level according to environmental lighting conditions, making the power consumption dynamic rather than fixed at maximum levels, thus resolving the contradiction between maintaining reliability and reducing power consumption
Solution Approach 2:
The system changes the brightness parameter of the light emitting element based on detected illuminance levels. By adjusting this physical parameter dynamically, the system prevents overcurrent malfunctions while optimizing power consumption according to actual environmental conditions
2Measurement precision
If the brightness of light emitting element is increased for better position identification, then the measurement precision is improved, but the power consumption increases
Solution Approach 1:
The system dynamically adjusts the brightness parameter of the light emitting element based on detected illuminance levels. In darker environments, brightness is increased to maintain position identification accuracy, while in brighter environments, brightness is reduced to save power, thus resolving the contradiction between measurement precision and power consumption
3Duration of action of moving object
If the independent power source capacity is increased in controller device, then the duration of action is improved, but the device complexity increases
Solution Approach 1:
The system implements dynamic power management through illuminance-based brightness adjustment. This dynamic control extends battery life by adapting power consumption to environmental conditions without requiring a larger battery capacity, thus extending duration of action while avoiding increased device complexity
Solution Approach 2:
The controller device autonomously adjusts its power consumption based on environmental illuminance detection, managing its own power resources efficiently without requiring complex external power management systems, thereby extending battery life while maintaining simple device architecture
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
This solution effectively manages power consumption by dynamically adjusting the brightness of light emitting elements in the controller, reducing the risk of malfunctions and improving the overall performance and efficiency of HMD devices in augmented reality applications.
Implementation Method 1
a sensor configured to measure external illuminance
Data Source
AI summary
An electronic device is provided. The electronic device includes at least one processor, and a head-mounted display (HMD) device wirelessly connecting to the at least one processor. The at least one processor includes a first communication module, a light-emitting device, and a first processor for controlling the brightness of the light-emitting device based on a brightness adjustment signal received from the HMD device. The HMD device includes a second communication module, a sensor for measuring external illuminance, and a second processor for acquiring the external illuminance measured by the sensor, and, based on the obtained external illuminance, transmitting the brightness adjustment signal, for adjusting the brightness of the light-emitting device of the at least one processor, to the at least one processor by using the second communication module.