Air-conditioning control system and remote control device
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Solution Overview
Problem
Conventional air-conditioning systems without a mechanism for connecting additional air-conditioning apparatuses via a common bus cannot easily install extra units.
Innovation Solution
An air-conditioning control system comprising a master remote control device and slave remote control devices connected via a first communication system, allowing the master to control additional air-conditioning apparatuses through a second communication system, enabling easy installation of additional units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a common bus mechanism is used to connect air-conditioning apparatuses, then additional units can be installed easily, but system complexity increases
Solution Approach 1:
The system is divided into a master remote control device and multiple slave remote control devices. Each slave device can independently control an air-conditioning apparatus, while the master device coordinates the overall system. This segmentation allows additional apparatuses to be installed by simply adding more slave devices without requiring a complex common bus infrastructure.
Solution Approach 2:
The master remote control device acts as an intermediary between slave remote control devices and air-conditioning apparatuses. It receives control signals from slave devices and relays them to the appropriate apparatuses, enabling easy expansion of the system without direct connections between all components.
2Productivity
If controllers are connected in a hierarchical structure with master and slave control units, then virtual control units can be produced efficiently, but the installation of additional apparatuses becomes difficult without a common bus mechanism
Solution Approach 1:
The master remote control device is designed to perform multiple functions: it controls air-conditioning apparatuses directly and also manages slave remote control devices. This multi-functionality allows the system to efficiently produce virtual control units while maintaining the ability to easily install additional apparatuses through the slave device architecture.
3Quantity of substance
If a master remote control device controls multiple air-conditioning apparatuses directly, then the number of controllable units increases, but communication system complexity increases
Solution Approach 1:
The system introduces a new dimensional layer by adding slave remote control devices between the master device and air-conditioning apparatuses. This creates a two-level control structure that allows the master device to control more apparatuses indirectly through slaves, reducing the direct communication burden on the master device while increasing the total number of controllable units.
Data Source
AI summary
An air-conditioning control system includes a plurality of air-conditioning apparatuses each provided with an indoor unit and an outdoor unit; a master remote control device associated with one or more of the plurality of air-conditioning apparatuses and adapted to control operation of the associated air-conditioning apparatus or apparatuses; and one or more slave remote control devices connected with the master remote control device using a first communication system, associated with a remaining one or ones of the plurality of air-conditioning apparatuses, and adapted to control operation of the associated air-conditioning apparatus or apparatuses, in which the indoor units of the air-conditioning apparatuses are connected with an associated one or ones of the master remote control device and the slave remote control device or devices using a second communication system different from the first communication system, and the master remote control device controls the operation of the remaining air-conditioning apparatus or apparatuses via the slave remote control device or devices.