Electronic device and method for control of a building management system
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Solution Overview
Problem
Current thermo-fluidic installations in buildings rely on open-loop control systems, regulating indoor conditions based on outdoor temperatures, leading to inefficient energy use and high energy costs, as they fail to account for actual environmental requirements and free energy contributions like solar irradiation and occupancy levels.
Innovation Solution
An electronic device with a control unit powered by IoT logic, using fuzzy PID algorithms to integrate environmental sensor data and adjust mixing valves and air treatment unit gates for closed-loop control of temperature and carbon dioxide levels, reducing the need for complex system modifications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If open-loop control based on outdoor temperature is used, then system complexity is reduced, but energy efficiency deteriorates
Solution Approach 1:
The patent implements closed-loop control by introducing feedback from indoor temperature sensors and outdoor weather station data. The control unit continuously receives actual indoor temperature measurements and adjusts the mixing valve position accordingly, creating a feedback mechanism that eliminates the need for complex predictive algorithms while maintaining energy efficiency through real-time adaptation to actual building conditions.
Solution Approach 2:
The system enables self-service control by allowing the building management system to automatically adjust mixing valve positions based on real-time indoor temperature measurements and weather data. The control algorithm autonomously determines optimal valve positions without requiring manual intervention or complex external control systems, making the system self-regulating and energy-efficient.
2Loss of energy
If closed-loop control with environmental sensors is implemented, then energy efficiency is improved, but device complexity increases
Solution Approach 1:
The patent implements closed-loop control by introducing feedback from indoor temperature sensors and outdoor weather station data. The control unit continuously receives actual indoor temperature measurements and adjusts the mixing valve position accordingly, creating a feedback mechanism that eliminates the need for complex predictive algorithms while maintaining energy efficiency through real-time adaptation to actual building conditions.
Solution Approach 2:
The control unit is designed to perform multiple functions: it processes indoor temperature sensor data, receives outdoor weather station information, executes the control algorithm, and actuates the mixing valve. This multi-functional design consolidates what could be separate complex systems into a single integrated control unit, reducing overall system complexity while maintaining closed-loop energy-efficient operation.
3Ease of operation
If standard control values based on design data are used, then ease of operation is improved, but adaptability to actual environmental requirements deteriorates
Solution Approach 1:
The patent transforms the static standard control values into dynamic adaptive parameters. The control algorithm continuously adjusts the mixing valve position based on real-time indoor temperature measurements and outdoor weather conditions. This dynamic approach allows the system to automatically adapt to changing environmental requirements while maintaining ease of operation through automated control, eliminating the need for manual reconfiguration.
Solution Approach 2:
The patent implements closed-loop control by introducing feedback from indoor temperature sensors and outdoor weather station data. The control unit continuously receives actual indoor temperature measurements and adjusts the mixing valve position accordingly, creating a feedback mechanism that eliminates the need for complex predictive algorithms while maintaining energy efficiency through real-time adaptation to actual building conditions.
Data Source
AI summary
Electronic device for regulating a thermo-fluidic system for a building, including a heating/cooling system including mixing valves adapted to control flows of hot/cold water within said heating/cooling system, the device including a control unit adapted to:receive a main signal from a building management system;receive a predefined reference signal representative of a desired parameter for the building;receive environmental signals from environmental sensors placed in the building and adapted to measure environmental parameters of said building;issue a control signal towards an actuator associated with a respective mixing valve in order to modify the opening or closing thereof.