Air Conditioner Wireless Signal Strength Tuning to Reduce Interference
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Solution Overview
Problem
The increasing use of wireless communication in air conditioner systems leads to interference between devices, necessitating a method to optimize signal strength and wireless communication range to prevent mutual interference and enhance communication efficiency.
Innovation Solution
The air conditioner system employs a method where a master unit transmits a tuning command to slave units, which adjust their signal strength by measuring reception sensitivity and transmission success rates, determining the optimal signal strength to minimize interference and maximize communication quality, using a sub-GHz frequency band for wireless communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wireless communication is increased in air conditioner systems, then device connectivity and control flexibility are improved, but signal interference between devices increases
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the transmission power level of wireless signals based on measured reception sensitivity and communication success rates. The system changes the signal strength parameter to optimize communication quality while minimizing interference with other devices in the wireless network.
Solution Approach 2:
The patent implements feedback mechanisms where receiving devices measure reception sensitivity and transmission success rates, then feed this information back to transmitting devices. This feedback loop enables continuous optimization of signal strength parameters to maintain reliable communication while reducing harmful interference effects.
2Reliability
If signal strength is increased to improve communication reliability, then wireless communication quality is improved, but interference with other devices increases
Solution Approach 1:
The patent dynamically adjusts the transmission power parameter based on measured communication quality metrics. By changing the signal strength parameter adaptively rather than using a fixed high level, the system maintains reliable communication for its own devices while reducing harmful interference to neighboring wireless networks.
Solution Approach 2:
The system transitions from static signal strength settings to dynamic adjustment based on real-time measurement of reception sensitivity and transmission success rates. This dynamic approach allows the system to optimize communication reliability while adapting to changing environmental conditions and interference levels.
3Adaptability or versatility
If wireless communication range is expanded to improve system flexibility, then device connectivity is improved, but mutual interference between devices increases
Solution Approach 1:
The patent adjusts transmission power parameters to optimize communication range while minimizing interference. By measuring reception sensitivity and transmission success rates, the system dynamically changes signal strength to achieve adequate coverage without excessive power that would cause mutual interference with other wireless devices.
Data Source
AI summary
A method of controlling an air conditioner system, the method including transmitting, by a first unit among a plurality of units belonging to a particular group, a wireless tuning command to a second unit; measuring, by the second unit, reception sensitivity and a transmission and reception success rate by wirelessly communicating with units belonging to the particular group while reducing a signal strength from a default signal strength; when the reception sensitivity and the transmission and reception success rate satisfy the predetermined standard, determining, by the second unit, that the signal strength corresponding to a level right before a level satisfying a predetermined standard is the signal strength to be used; and transmitting, by the second unit, information related to the determined signal strength to the first unit. Accordingly, an optimal signal strength at which mutual interference is prevented may be set.