Central Air Distribution Control for Misplaced Room Terminals
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Solution Overview
Problem
Central air-conditioning systems face issues with temperature control accuracy due to the portability and ease of misplacement of room terminals, leading to excessive or insufficient air-conditioning in rooms.
Innovation Solution
A central air-conditioning system with a control device that includes correspondence judging means to verify the correct mounting of room terminals in each room, using changes in temperature and distribution mechanism control to determine if a terminal is correctly placed, and an air-conditioning stopping mechanism to prevent misalignment, thereby ensuring accurate temperature control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If room terminals are made portable and compact for ease of installation and maintenance, then ease of operation is improved, but reliability deteriorates due to potential misplacement and incorrect temperature detection
Solution Approach 1:
The control device continuously monitors the temperature detected by each room terminal and compares it with the preset temperature and expected temperature range for that room. When a discrepancy is detected (indicating the terminal may be misplaced), the system provides feedback by notifying the user and adjusting or stopping air-conditioning output to that room, thereby maintaining reliability despite terminal portability
Solution Approach 2:
The control device acts as an intermediary between the portable room terminals and the air-conditioning unit. It verifies the correctness of each terminal's detected temperature before commanding the air-conditioning unit to operate, preventing misplaced terminals from causing incorrect temperature control while preserving the terminals' portability
2Ease of repair
If room terminals are made portable for battery replacement and maintenance, then ease of repair is improved, but measurement precision deteriorates due to potential detection of wrong room temperature
Solution Approach 1:
The control device monitors whether the temperature detected by a room terminal is reasonable for its assigned room by comparing it with preset temperatures and temperature change patterns. When the terminal is misplaced and detects wrong room temperature, the system detects this through feedback mechanisms and notifies users, preventing inaccurate temperature control while allowing terminal portability for maintenance
Solution Approach 2:
The control device performs preliminary verification of the room terminal's detected temperature before using it to control air-conditioning. By checking whether the detected temperature matches expected values for that room in advance, the system prevents misplaced terminals from causing measurement errors while maintaining ease of terminal maintenance
3Adaptability or versatility
If the system allows portable room terminals to be freely moved, then adaptability is improved, but temperature control accuracy deteriorates due to correspondence loss between terminal and room
Solution Approach 1:
The control device continuously monitors the correspondence between room terminals and their assigned rooms by analyzing temperature detection patterns and comparing them with preset expectations. When a terminal is moved to a different room, the feedback mechanism detects the temperature discrepancy and notifies users, allowing the system to maintain temperature control precision despite terminal mobility and adaptability
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 effectively prevents excessive or insufficient air-conditioning by ensuring room terminals are correctly mounted, maintaining precise temperature control in each room even when terminals are portable and prone to misplacement.
Implementation Method 1
a temperature detecting unit that detects the temperature of the specified room
Implementation Method 2
The correspondence judging unit judges whether or not the specified room terminal is mounted in the specified room based on the transition of control of the distribution mechanism in the specified room and the changes in temperature detected by the specified room terminal
Data Source
AI summary
In a central air-conditioning system and method, a distribution mechanism distributes warm air or cool air generated by an air-conditioning unit to a plurality of rooms in a house. A control device controls the distribution mechanism to adjust a temperature of each room. A plurality of room terminals are provided as a device each dedicated to a room. Each room terminal receives an input of a preset temperature for the room and detects temperature of the room, and outputs the received preset temperature and the detected room temperature to the control device. The control device judges whether or not a specified room terminal is mounted in a specified room, based on a transition of control of the distribution mechanism in the specified room and a change in the detected temperature. The control device stops air-conditioning the specified room when judged that the specified room terminal is not mounted in the specified room.