Air conditioner, temperature protector, and method for controlling communication of air conditioner
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Solution Overview
Problem
Current air conditioning systems lack real-time communication between indoor and outdoor units and temperature protectors, limiting their ability to adjust operating states efficiently and resulting in low energy efficiency due to one-way AC communication that only recognizes high and low levels in square wave signals.
Innovation Solution
Implementing high-frequency signal transmission over power communication lines to enable two-way communication between indoor and outdoor units and temperature protectors, using integrated circuits and filtering devices to extract and filter high-frequency signals from AC power signals, allowing for real-time parameter exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If one-way AC communication is used to connect indoor and outdoor units, then the circuit structure is simple, but real-time two-way communication cannot be achieved and energy efficiency is low
Solution Approach 1:
The patent uses the existing AC power communication line as an intermediary carrier to transmit both power and high-frequency communication signals. By modulating control parameters onto high-frequency carriers and transmitting them through the power line, the system achieves two-way communication without requiring separate communication wiring, thus improving reliability while maintaining circuit simplicity.
Solution Approach 2:
The patent replaces traditional mechanical/electrical communication systems with electromagnetic signal modulation. Instead of using separate communication circuits or mechanical switches, the system modulates control signals onto high-frequency electromagnetic carriers that can traverse the power communication line, enabling efficient two-way data exchange between indoor and outdoor units.
2Productivity
If high-frequency signal transmission is implemented over power communication lines, then real-time parameter exchange is enabled, but signal filtering and extraction complexity increases
Solution Approach 1:
The patent employs high-frequency electromagnetic vibrations (signals) to carry control parameters through the power communication line. By using high-frequency carriers significantly different from the power frequency, the system enables real-time parameter exchange while allowing simple filtering at the receiving end to separate the communication signal from the power signal, thus achieving high productivity without excessive processing complexity.
Solution Approach 2:
The patent uses periodic high-frequency signal transmission to convey control parameters. The modulated signals are transmitted periodically over the power line, and receiving units use synchronous detection or filtering to extract the periodic communication signals from the continuous power signal, enabling efficient real-time control while keeping the signal processing relatively simple through periodic sampling and filtering.
3Ease of manufacture
If traditional AC communication is used that only recognizes high and low levels in square wave signals, then the system is easy to implement, but energy efficiency is low and variable frequency operations are limited
Solution Approach 1:
The patent changes the communication signal parameters from simple square wave high-low levels to modulated high-frequency signals carrying multiple control parameters. By varying frequency, amplitude, and phase of the high-frequency carriers, the system can transmit detailed control information for variable frequency operations, significantly improving energy efficiency while maintaining ease of implementation through standard modulation techniques.
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 solution enables real-time communication and parameter sharing between units, improving control strategies and energy efficiency by allowing for timely adjustments and full variable frequency operations, while simplifying circuit structures and reducing costs.
Implementation Method 1
generate a first high-frequency signal carrying the indoor unit parameters based on the indoor unit parameters, and load the first high-frequency signal to a power communication line
Implementation Method 2
using integrated circuits and filtering devices to extract and filter high-frequency signals from AC power signals
Data Source
AI summary
An air conditioner and a method for controlling air conditioner communication are disclosed. The air conditioner includes an indoor unit, an outdoor unit, and a temperature protector. The indoor unit includes an indoor control device and an indoor communication device. The outdoor unit includes an outdoor control device and an outdoor communication device. The temperature protector includes a temperature control device and a temperature control communication device. The temperature control device is configured to output a temperature control setting parameters. The temperature control communication device is coupled with the temperature control device. The temperature control communication device is configured to receive the temperature control setting parameters, generate a fifth high-frequency signal carrying the temperature control setting parameters based on the temperature control setting parameters, and load the fifth high-frequency signal to the power communication line, so as to output the temperature control setting parameters.