Method for controlling air conditioner system
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Solution Overview
Problem
As the number of devices connected via wireless communication in air conditioner systems increases, communication quality may degrade, communication speed may be reduced, and communication interference may increase unless an optimal communication channel configuration is made, necessitating a method to set and dynamically change communication channels according to changes in the communication environment.
Innovation Solution
The air conditioner system employs a method where indoor and outdoor units, grouped by their communication environment, perform periodic channel scans to determine the optimal communication channel by aggregating results from all units, switching to a channel with the lowest communication load and minimizing interference, using a sub-GHz frequency band for efficient communication across multiple floors in a building.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If more devices are connected via wireless communication in the air conditioner system, then the system functionality and coverage are improved, but communication quality degrades and interference increases
Solution Approach 1:
The system dynamically adjusts communication channels based on real-time environmental conditions and device load. Each air conditioner unit can switch between different wireless channels (e.g., 2.4GHz and 5GHz bands) to maintain optimal communication quality as devices are added or removed from the network
Solution Approach 2:
The system changes communication parameters such as frequency band, channel number, and transmission power based on detected interference levels and communication quality metrics. This allows the system to adapt to varying network conditions while maintaining reliable communication across multiple devices
2Ease of operation
If wireless communication is used to enable flexible device control, then ease of operation is improved, but communication interference and speed reduction occur
Solution Approach 1:
The system continuously monitors communication quality metrics including signal strength, packet loss, and interference levels. Based on this feedback, air conditioner units automatically adjust their communication channels and transmission parameters to minimize interference while maintaining flexible wireless control
Solution Approach 2:
The wireless communication network is segmented into multiple channels and frequency bands. By dividing the communication spectrum into separate segments, the system reduces interference between devices while maintaining ease of operation through wireless control
3Device complexity
If communication channels are not optimized, then device complexity is reduced, but communication speed and quality deteriorate
Solution Approach 1:
Air conditioner units automatically perform channel scanning, quality assessment, and optimal channel selection without external intervention. The system self-configures communication parameters based on environmental conditions, eliminating the need for manual setup while maintaining high communication speed
Data Source
AI summary
A method for controlling an air conditioner system may include a preset reception rate degradation error occurs in one or more indoor unit, transmitting a channel switch request signal to an outdoor unit belonging to a particular group; performing a channel scan by each of the outdoor unit and the plurality of indoor units; transmitting, by the plurality of indoor units, channel scan results to the outdoor unit; determining, by the outdoor unit, a channel to be used by the particular group based on a result of a channel scan performed by the outdoor unit and the channel scan results received from the plurality of indoor units; and outputting, by the outdoor unit, information on the channel to the plurality of indoor units. Accordingly, the communication channel may be changed to an optimal communication channel according to a change a communication environment.