Method for operating a heating assembly and heating assembly
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Solution Overview
Problem
Existing heating system methods require a large number of input parameters to determine heating-up time, which are difficult to determine and subject to fluctuations, necessitating frequent model adaptation.
Innovation Solution
A method that determines heating-up time by analyzing historical measured values from a specified period, using a linear regression model to account for heat losses and external inputs, with criteria to identify genuine heating processes, such as temperature differences and duration, to improve accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a large number of input parameters are used to determine heating-up time, then the model can account for various factors affecting heating, but the parameters are difficult to determine and subject to fluctuations, necessitating frequent model adaptation
Solution Approach 1:
The patent extracts and isolates the most critical parameter (actual temperature difference between room and outside) from the complex set of parameters. By focusing on this single extracted parameter rather than using all possible parameters, the model achieves sufficient accuracy without requiring frequent adaptation to fluctuating conditions.
Solution Approach 2:
The patent applies local quality by treating different parameters differently in the calculation. Instead of treating all parameters with equal weight or requiring all parameters to be precisely determined, the method focuses on the locally critical actual temperature difference parameter, allowing other parameters to be less precisely defined or held constant.
2Reliability
If models continuously adjust and optimize to account for parameter fluctuations, then heating time determination remains accurate, but the system requires frequent model adaptation and maintenance
Solution Approach 1:
The patent applies preliminary action by pre-calculating heating times based on typical temperature differences and storing these as reference values. When determining heating time, the system selects from pre-calculated values based on current conditions rather than performing complex real-time calculations, reducing the need for frequent model adaptation while maintaining reliability.
Solution Approach 2:
The patent uses parameter changes by categorizing the actual temperature difference into discrete ranges or steps. Instead of continuously adjusting for every fluctuation in parameters, the system changes parameters in discrete steps, selecting appropriate pre-calculated heating times based on which range the current parameters fall into, thereby reducing maintenance effort while preserving reliability.
Data Source
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AI summary
The present invention relates to a method for operating a heating system (1) in a building with at least one heated room (R). In one step of the method, at least the following measured values are periodically generated and recorded at predetermined times: a current room temperature (TR) of the at least one heated room (R); a current room setpoint temperature (TR,W) of the at least one heated room (R); a current flow temperature (TVL); and an outside temperature (TA). In a further step, a target temperature (TE) is specified, which is to be reached in the at least one heated room (R) at a first time (tE). A second time (tS) is determined, at which a heating process must start in order to reach the target temperature (TE) at the first time (tE). The determination of the second time (tE) depends on a plurality of parameters.According to the invention, the multitude of parameters is determined as a function of a multitude of recorded measured values, whereby only those measured values from a defined period (ΔtH) that were generated during a heating process are used. Measured values at a given time belong to a heating process if the current actual room temperature (TR) is lower than the current predetermined room setpoint temperature (TR,W). The invention also relates to a heating system (1).