Air-conditioning system control apparatus and air-conditioning system
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Solution Overview
Problem
The existing air-conditioning system control apparatus struggles to accurately reflect the carbon dioxide concentration in the indoor occupied space due to the difference between the detection data from the carbon dioxide concentration sensor and the actual concentration, leading to inadequate ventilation.
Innovation Solution
An air-conditioning system control apparatus that includes a computing device to generate a ventilation air volume correction coefficient based on operation conditions and previous data, correcting the set ventilation air volume to align with temporal fluctuations in carbon dioxide concentration, thereby improving ventilation accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a carbon dioxide concentration detection sensor is installed in the ventilation apparatus, then the ventilation apparatus can detect carbon dioxide concentration, but the detected concentration does not accurately reflect the actual concentration in the indoor occupied space
Solution Approach 1:
The patent introduces an air-conditioning apparatus as an intermediary device between the ventilation apparatus and the indoor occupied space. This air-conditioning apparatus is strategically positioned to directly interact with the indoor air environment, and its operation data serves as a mediator to infer the actual carbon dioxide concentration in the occupied space, bridging the gap between the sensor location and the target measurement area
Solution Approach 2:
The system implements a feedback mechanism where the control apparatus continuously monitors operation data from both the ventilation apparatus and air-conditioning apparatus, compares detected carbon dioxide concentration with inferred actual concentration, and adjusts ventilation air volume accordingly. This closed-loop feedback enables dynamic correction of ventilation based on the difference between detected and actual carbon dioxide levels
2Ease of operation
If the ventilation apparatus is installed on the indoor ceiling, then it can ventilate the indoor space, but the detection data from the sensor does not match the carbon dioxide concentration in the occupied space
Solution Approach 1:
The air-conditioning apparatus serves as an intermediary that connects the ceiling-mounted ventilation system with the occupied space environment. By monitoring the air-conditioning apparatus's operation data (which directly interacts with occupied space air), the system infers actual carbon dioxide levels without requiring physical relocation of the ventilation apparatus or installation of additional sensors in the occupied space
Solution Approach 2:
The patent replaces direct physical measurement (mechanical sensor placement in occupied space) with indirect inference based on operational parameters. Instead of mechanically placing a sensor in the occupied space to directly measure carbon dioxide concentration, the system uses computational inference from air-conditioning apparatus operation data to determine actual carbon dioxide levels
Data Source
AI summary
An air-conditioning system control apparatus including: a storage to store data for control of a ventilation apparatus and an air-conditioning apparatus; and a computing device to generate a control command controlling the ventilation and the air-conditioning apparatus based on the stored data. The computing unit includes: a ventilation air volume correction coefficient generator to generate a ventilation air volume correction coefficient for correcting a set ventilation air volume based on operation conditions and previous operation data of the ventilation and the air-conditioning apparatus; an operation state determination unit to correct the set ventilation air volume, obtained based on temporal fluctuation data of a carbon dioxide concentration and current operation data of the ventilation and the air-conditioning apparatus, with the ventilation air volume correction coefficient; and a control command generator to generate the control command based on the set ventilation air volume corrected by the operation state determination unit.