Air conditioner provided with remote controller having temperature sensor
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Solution Overview
Problem
RF remote controllers for air conditioners can cause useless cooling operations when placed outside the room being air-conditioned, as the temperature detected by the remote controller is not indicative of the room temperature, leading to excessive energy consumption.
Innovation Solution
The air conditioner system includes a control unit that compares temperature data from the remote controller with a preset temperature, adjusts operation based on detected temperature differences, and uses a timer to determine if the remote controller is present in the target room, thereby preventing excessive cooling or heating by reducing operation capacity when the remote controller is not in the room.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If an RF remote controller is used instead of an infrared remote controller, then the communication area is wider and the remote controller can be placed in other rooms, but the temperature detected by the temperature sensor is not indicative of the room temperature of the air-conditioned room, causing useless air-conditioning operation
Solution Approach 1:
The system compares the temperature detected by the remote controller's temperature sensor with the room temperature detected by the air conditioner's temperature sensor. When the detected temperature difference exceeds a predetermined threshold, the system determines that the remote controller is not in the target room and adjusts or stops air-conditioning operation to prevent useless energy consumption.
Solution Approach 2:
The air-conditioning operation is dynamically adjusted based on the detected temperature difference. The system changes the operation state from normal cooling to reduced operation or standby mode when it determines the remote controller is outside the air-conditioned room, optimizing energy usage based on real-time conditions.
2Ease of operation
If the air-conditioner body operates based on temperature detected by the remote controller, then the operation control is simplified, but useless cooling operation occurs when the remote controller is not present in the target room
Solution Approach 1:
The control unit continuously compares temperature data from both the remote controller and the air conditioner's own temperature sensor to determine whether the remote controller is in the target room. This feedback mechanism enables automatic adjustment of operation mode without requiring complex user input, maintaining ease of operation while preventing energy waste.
Solution Approach 2:
The system automatically detects whether the remote controller is in the air-conditioned room by comparing temperature readings and autonomously adjusts its operation mode accordingly. This self-service capability eliminates the need for manual intervention to prevent useless operation, maintaining simplicity while optimizing energy consumption.
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 prevents excessive cooling or heating by ensuring that air-conditioning operations are only performed when the remote controller is in the target room, reducing energy waste and optimizing energy usage.
Implementation Method 1
temperature sensor which detects temperatures of an area closer to the presence of a person
Implementation Method 2
remote-controller transmission unit that transmits the temperature detected by the temperature detecting unit as a transmission signal by means of an radio wave
Data Source
AI summary
An air conditioner includes an air-conditioner body performing air-conditioning operation, and a remote controller to operate the air-conditioner body. The air-conditioner body includes control unit that performs operation control of the air-conditioner body, and body receiving unit that receives a transmission signal from the remote controller. The remote controller includes temperature detecting unit for detecting temperatures around the remote controller, and remote-controller transmission unit. At the time of cooling operation, the control unit compares the detected temperature received from the remote controller and a preset temperature predetermined. When the detected temperature is lower than the preset temperature, the control unit operates the air-conditioner body so as to reduce a temperature difference between the detected temperature and the preset temperature, or when the detected temperature is equal to or higher than the preset temperature, the control unit operates the air-conditioner body based on the preset temperature.