Building Aperture Shading Control With Scheduled Climate Programs
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Solution Overview
Problem
Existing building aperture control systems face issues with inconsistent sensor instructions, high power consumption, and inefficient energy management, particularly in controlling shading devices like blinds and roller shutters, leading to unintended operation and increased energy costs.
Innovation Solution
A climate and comfort program that automatically controls building apertures based on geographical location, direction, and user input, optimizing energy usage by adjusting the position and operation of shading devices according to a time schedule, reducing power consumption and enhancing energy efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If sensor-dependent automatic control systems are used to control screening devices, then the screening device can automatically adjust to environmental conditions, but inconsistent sensor instructions and high power consumption occur
Solution Approach 1:
The system pre-calculates and stores optimal screening device positions for different times of day and seasons before actual operation. During runtime, it simply retrieves pre-determined positions based on clock time and seasonal data, avoiding continuous sensor communication and complex real-time calculations, thus significantly reducing power consumption while maintaining automatic control functionality
2Adaptability or versatility
If multiple sensors are used to control the screening device, then more comprehensive environmental data is collected, but inconsistent instructions and unintended constant opening/closing occur
Solution Approach 1:
The system introduces a central controller as an intermediary that receives data from multiple sensors, processes it according to pre-programmed climate and comfort parameters, and generates unified control decisions. This mediator resolves conflicts between sensor readings by applying predetermined rules and thresholds, ensuring stable and consistent control actions while maintaining comprehensive environmental monitoring
3Use of energy by moving object
If manual control methods are used for screening devices, then power consumption is minimized, but user convenience and energy optimization are reduced
Solution Approach 1:
The system enables the screening device to automatically regulate itself based on pre-configured climate and comfort parameters stored in memory. The device uses internal clock time and seasonal data to determine optimal positions without requiring continuous user intervention or complex sensor networks, achieving both low power consumption and automated energy optimization
4Loss of energy
If complex climate control systems are implemented, then energy optimization is improved, but system complexity and cost increase
Solution Approach 1:
The system uses a single controller that performs multiple functions: storing climate and comfort parameters, managing screening device control, tracking clock time, determining seasonal conditions, and processing sensor data. This multi-functional approach achieves comprehensive energy optimization without requiring separate complex subsystems for each function, thereby reducing overall system complexity and cost
Data Source
AI summary
A method of controlling a controllable device related to a building aperture, whereby a climate related characteristic for the aperture is adjusted by the device, and whereby the device is controlled in accordance with a climate and comfort program which is dependent on a control parameter, whereby the device is controlled in accordance with a time schedule provided by the climate and comfort program.