System for determining operation condition of precooling operation/preheating operation of air conditioner
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Solution Overview
Problem
Existing absence control systems for air conditioners do not actively control the ventilation apparatus during precooling or preheating operations, leading to inefficiencies in temperature management and energy usage.
Innovation Solution
A precooling or preheating operation control apparatus that includes an air conditioner, a ventilation apparatus, a light-blocking apparatus, and a control unit, which determines operation details based on set temperatures, outside air temperatures, room conditions, and CO2 concentrations to optimize the operation of these systems, including start times for each component.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the air conditioner operates alone during precooling or preheating, then the control system is simple, but the precooling or preheating efficiency is insufficient
Solution Approach 1:
The patent combines the air conditioner and ventilation apparatus into an integrated control system that operates simultaneously during precooling or preheating. The control unit coordinates both devices to work together, merging their functions to achieve faster temperature adjustment and improved efficiency compared to operating the air conditioner alone.
Solution Approach 2:
The system performs preliminary cooling or heating actions before the user returns by activating both the air conditioner and ventilation apparatus in advance. This preliminary action prepares the target space temperature ahead of time, reducing the thermal load when the user returns and improving overall comfort and efficiency.
2Productivity
If the ventilation apparatus is not actively controlled during precooling or preheating, then the control logic is simple, but the temperature management efficiency is reduced
Solution Approach 1:
The control unit receives feedback from temperature sensors monitoring the target space and adjusts the ventilation apparatus operation accordingly. This feedback mechanism enables dynamic optimization of the precooling or preheating process, improving temperature management efficiency by responding to actual thermal conditions rather than operating on fixed schedules.
3Use of energy by moving object
If precooling or preheating is performed without coordinating ventilation, then the system operation is simple, but energy consumption increases
Solution Approach 1:
The patent merges the operation coordination of the air conditioner and ventilation apparatus under a single control unit. By combining their control logic and operating schedules, the system optimizes energy consumption through coordinated operation, avoiding the energy waste that would occur if the devices operated independently without optimization.
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 configuration allows for more efficient precooling or preheating operations by actively controlling the ventilation and light-blocking apparatuses, reducing energy consumption and improving temperature management by determining optimal operation details and start times for the air conditioner, ventilation apparatus, and light-blocking apparatuses.
Implementation Method 1
an air conditioner that performs heat exchange between air in a target space for precooling or preheating and a heat medium
Implementation Method 2
a ventilation apparatus that replaces part of the air in the target space with outside air that is air outside a building
Data Source
AI summary
A precooling operation/preheating operation control apparatus includes: an air conditioner, a ventilation apparatus, and a controller. The air conditioner performs heat exchange between air in a target space for precooling or preheating and a heat medium. The ventilation apparatus replaces part of the air in the target space with outside air that is air outside a building. The controller determines, on the basis of a set temperature of the target space at a designated time and a quantity related to an outside air temperature, operation details of the air conditioner and operation details of the ventilation apparatus during a precooling operation or preheating operation.