Method and device for controlling at least one concealing device
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Solution Overview
Problem
Existing systems fail to optimally manage solar radiation energy input to balance heating and cooling needs in buildings, leading to inefficient use of fossil fuels or electricity.
Innovation Solution
A control system for motorized roller shutters that adjusts based on weather forecasts, indoor temperature, and solar radiation predictions to optimize energy use by activating or deactivating the shutters based on predetermined thresholds and occupant preferences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the roller shutter is activated to block solar radiation, then the cooling need is reduced, but the visual comfort of the occupant deteriorates
Solution Approach 1:
The system performs preliminary action by obtaining weather forecasts and solar radiation predictions in advance, comparing forecast temperatures to thresholds, and calculating energy ratios before making the decision to activate the shutter. This allows proactive energy management rather than reactive response to overheating
Solution Approach 2:
The system changes parameters by considering multiple factors including forecast temperature, current indoor temperature, solar radiation power, and calculated energy ratios. The decision to activate the shutter is based on dynamic parameter evaluation rather than fixed conditions, optimizing the balance between energy savings and visual comfort
2Ease of operation
If the roller shutter is deactivated to maintain visual comfort, then the occupant can see outside, but the cooling energy consumption increases
Solution Approach 1:
The system implements feedback by continuously monitoring indoor temperature, obtaining weather forecasts, and calculating the ratio of solar radiation energy to temperature difference. This feedback loop enables dynamic decision-making about shutter activation based on actual energy implications rather than static rules
Solution Approach 2:
The system evaluates multiple parameters including forecast temperature, current temperature, solar radiation power, and their relationships through calculated ratios. This multi-parameter approach allows flexible optimization of the trade-off between visual comfort and cooling energy consumption
3Loss of energy
If the roller shutter is activated to block solar radiation, then the heating need in winter is reduced, but the energy input from solar radiation that could help heating is lost
Solution Approach 1:
The system changes parameters by evaluating forecast temperature against thresholds and calculating the ratio of solar radiation energy to temperature difference. In winter conditions, when the ratio indicates beneficial solar heating potential, the system maintains shutter deactivation to capture free solar energy input
Data Source
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AI summary
The invention relates to a method and a control system for at least one motorized roller shutter of at least one opening in a room of a building. According to the invention: - weather forecasts are obtained from a server of a telecommunications network, including temperature forecasts and information representative of forecast values of solar radiation power for at least one day, - the interior temperature of the building is obtained (E500), - the maximum temperature of the forecast for the day is compared (E502) to a value representative of a first predetermined temperature threshold, - the interior temperature of the building is compared (E502) to a value representative of a second predetermined temperature threshold, - the calculated ratio is compared (E502) with a decision threshold, - the shading device is controlled according to the comparisons (E507).