Pre-Entry Air Conditioning Control for Uneven Room Temperature
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional air conditioning systems face challenges in reducing operational load due to uneven temperature distribution in rooms, particularly during heating operations, as they do not perform ventilation before heating, leading to increased energy consumption.
Innovation Solution
An air conditioning system that includes a ventilation device, an air agitation device, and a detection device, which are controlled by an air conditioner based on indoor and outdoor temperatures, operation mode, and user presence, allowing for pre-operation ventilation and agitation before the user enters the room.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If ventilation is performed before cooling operation, then the load in cooling operation is reduced, but the load in cooling operation cannot be sufficiently reduced when temperature distribution in the room is not uniform
Solution Approach 1:
The system performs preliminary ventilation before cooling operation to discharge accumulated hot air, and additionally performs preliminary air agitation when temperature distribution is uneven. This preliminary action prepares the room environment before the main cooling operation, reducing the load on the air conditioner by pre-venting hot air and pre-agitating to achieve more uniform temperature distribution.
2Device complexity
If ventilation is not performed before heating operation, then the system structure remains simple, but the load in heating operation becomes significantly heavy when temperature distribution in the room is uneven
Solution Approach 1:
The system performs preliminary air agitation before heating operation when temperature distribution is uneven, without requiring additional ventilation infrastructure. This preliminary agitation redistributes temperature more uniformly before heating starts, reducing the heating load while maintaining simple system structure.
3Ease of operation
If air conditioning is controlled after user enters the room, then the system operation is simple, but the room environment comfort is reduced
Solution Approach 1:
The detection device detects user approach in advance, and the control device performs preliminary ventilation and/or air agitation before the user enters the room. This creates a comfortable environment in advance while maintaining automatic simple operation - the system decides what preliminary actions to take based on detected conditions without requiring user intervention.
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
This system effectively reduces the operational load by performing ventilation and agitation before the air conditioner is activated, ensuring a comfortable environment and optimizing energy usage by adapting to temperature differences and user presence.
Implementation Method 1
a ventilation device to ventilate the room
Implementation Method 2
ventilate the room
Implementation Method 3
an air agitation device to agitate air in the room
Data Source
Figure 1
Figure 2
Figure 3
AI summary
An air conditioning system (100) for controlling air conditioning in a room in accordance with an air conditioning operation instruction received from a user includes: a ventilation device (2) that ventilates the room; an air agitation device (3) that agitates air in the room; an air conditioner (1) that controls the air conditioning of the room and controls operations of the ventilation device (2) and the air agitation device (3); and a detection device (4) that detects presence of the user in the room. The air conditioner (1) controls the operations of the ventilation device (2) and the air agitation device (3) before the user enters the room based on an indoor temperature that is a temperature inside the room, an outdoor temperature that is a temperature outside the room, an operation mode of air conditioning control performed by the air conditioner (1) included in the air conditioning operation instruction, an operating status of the ventilation device (2), and a detection result provided by the detection device (4).