Humidifier Controller Stabilizing Humidity via Threshold Logic
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Solution Overview
Problem
Conventional entire building air conditioning systems experience unstable humidification due to frequent switching between humidifying and stopping operations caused by instantaneous changes in air-conditioned space humidity, leading to inefficient humidifier performance.
Innovation Solution
An air conditioning system with a controller that acquires humidity data from multiple spaces at regular intervals, executing a first humidifying control when humidity changes are within a threshold value and continuing or switching to a second control based on detected humidity differences, ensuring stable humidification by minimizing unnecessary operation starts and stops.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the humidifier determines operation based on instantaneous humidity changes, then the humidifier responds quickly to humidity variations, but the humidifier operation switches frequently between humidifying and stopping, causing unstable humidification
Solution Approach 1:
The controller performs preliminary actions by acquiring humidity data multiple times at predetermined time intervals before making a humidification operation decision. This allows the system to anticipate humidity trends and avoid reactive switching based on instantaneous fluctuations, thereby stabilizing operation while maintaining responsive humidification control.
2Reliability
If the humidifier operates continuously to maintain humidity, then humidity stability is improved, but energy consumption increases and unnecessary operation occurs during disturbance periods
Solution Approach 1:
The controller implements feedback control by continuously acquiring humidity data from multiple spaces at predetermined intervals and using this information to dynamically adjust humidifier operation. The system monitors humidity trends over time and adjusts operation accordingly, maintaining humidity stability while avoiding continuous operation during periods when humidity is naturally stable or when disturbances are detected, thus reducing unnecessary energy consumption.
3Measurement precision
If the system monitors humidity frequently to detect changes, then humidity control precision is improved, but the complexity of control logic increases
Solution Approach 1:
The controller segments the humidification control into distinct operational modes (first humidifying control and second humidifying control) based on detected humidity conditions. By dividing the control logic into separate, well-defined segments that activate under specific humidity thresholds or patterns, the system achieves precise humidity monitoring and response while keeping the control structure organized and manageable, avoiding overwhelming complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system stabilizes humidification by reducing frequent operation changes, maintaining consistent humidity levels even with disturbances, and adjusting humidification based on humidity changes and air volume fluctuations.
Implementation Method 1
a humidifier disposed in the air conditioning room and humidifying the air temperature-adjusted by the air conditioning machine
Implementation Method 2
a plurality of transfer fans transferring the air in the air conditioning room to a plurality of air-conditioned spaces independent of the air conditioning room, respectively
Data Source
AI summary
Air conditioning system includes: air conditioner adjusting temperature of air in room; humidifier humidifying temperature-adjusted air; a plurality of transfer fans transferring air in room to a plurality of habitable rooms; and controller controlling humidifier. Controller acquires information related to detected humidities of air detected in rooms at a predetermined time interval, when the detected humidity is a first humidity, causes the humidifier to execute first humidifying control, and when the detected humidity changes from the first humidity to a second humidity differing from the first humidity, causes the humidifier to switch to and execute a second humidifying control based on the second humidity in a case of a humidity difference between the first humidity and the second humidity being less than or equal to a threshold value, and to continue to execute the first humidifying control in the case of the humidity difference being more than the threshold value.