Orientation-Aware Display Unit for Solar Thermal Control
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Solution Overview
Problem
Outdoor electronic displays face significant thermal management challenges due to solar loading, which can cause damage and affect image quality, and existing systems consume additional power to manage thermal loads and brightness adjustments based on ambient conditions.
Innovation Solution
A display unit with a controller that utilizes orientation detection devices, such as magnetometers and accelerometers, to adjust thermal management and brightness based on solar angle, tilt angle, and location, minimizing power consumption and enhancing image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If thermal management systems (fans, cooling loops) are activated to manage solar loading, then thermal loads are reduced and display damage is prevented, but power consumption increases
Solution Approach 1:
The system dynamically adjusts thermal management operations based on real-time solar angle calculations. The controller modulates fan speeds and cooling loop activation levels according to the calculated solar angle, ensuring thermal management is activated only when and where needed, thereby reducing unnecessary power consumption while maintaining display reliability.
Solution Approach 2:
The system changes operational parameters (fan speed, cooling activation) based on calculated solar angle values. By continuously monitoring and adjusting these parameters according to the solar angle, the system optimizes the balance between thermal management effectiveness and power consumption.
2Illumination intensity
If display brightness is increased to improve image visibility, then image quality improves, but power consumption increases
Solution Approach 1:
The system dynamically adjusts display brightness based on real-time solar angle calculations. The controller modulates brightness levels according to the calculated solar angle, increasing brightness when solar loading is low and reducing brightness when solar loading is high, thereby maintaining image visibility while minimizing power consumption.
3Productivity
If orientation detection devices and sensors are added to monitor solar angle and orientation, then operational optimization is achieved, but device complexity increases
Solution Approach 1:
The system employs a multi-functional controller that integrates orientation detection, solar angle calculation, thermal management control, and brightness adjustment in a single device. This consolidates multiple functions into one component, reducing overall system complexity while maintaining operational efficiency.
Solution Approach 2:
The patent combines multiple sensors and detection devices into an integrated orientation monitoring system. By merging these components and their data processing functions into a unified system, the patent reduces the complexity of having separate systems while achieving the desired operational optimization.
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
The system effectively manages thermal loads and brightness by optimizing operations based on orientation, reducing power consumption and preventing damage from solar exposure.
Implementation Method 1
The orientation detection device may comprise a magnetometer
Implementation Method 2
an accelerometer... the tilt angle of the unit... the display unit's direction or other orientation may be determined
Data Source
AI summary
Digital signage unit, such as for digital out of home advertising, with monitoring features are provided. The digital signage unit includes an electronic display, a sensor for measuring tilt, and a controller which receives data from the sensor and determines, from time to time, an operating status of the digital signage unit based, at least in part, on the data from the sensor.