Home Appliance Motor Speed Control for Notification Noise Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Home appliances connected to communication terminals often generate noise that interferes with ambient notifications, making it difficult for users to recognize important sounds, such as phone calls or messages, and requiring them to stop the appliance to respond.
Innovation Solution
A home appliance system that automatically controls motor speed based on a noise control mode, activated or deactivated by user input, to reduce noise levels during notifications, and resumes normal operation once the notification is acknowledged or a predetermined time has passed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the home appliance operates at normal driving speed, then productivity is improved, but noise level increases making notification sounds unrecognizable
Solution Approach 1:
The motor driving speed is made dynamically adjustable based on operational context. The processor controls the motor to operate at normal speed during standard operation, but automatically reduces speed when notification sounds are detected, creating a dynamic balance between productivity and noise reduction
Solution Approach 2:
The system uses audio detection feedback to monitor ambient notification sounds and automatically adjusts motor speed in response. The processor receives detection results from the audio detector and modifies driving speed accordingly, creating a closed-loop control system that responds to environmental conditions
2Object-affected harmful factors
If the home appliance reduces motor speed to lower noise, then notification recognition is improved, but productivity decreases
Solution Approach 1:
The motor driving speed is made dynamically adjustable based on operational context. The processor controls the motor to operate at normal speed during standard operation, but automatically reduces speed when notification sounds are detected, creating a dynamic balance between productivity and noise reduction
Solution Approach 2:
The noise control mode operates periodically based on detection of notification sounds. The motor speed is reduced only during periods when notification sounds are detected, and returns to normal speed when notifications are complete, allowing productivity to be maintained during non-notification periods
3Object-affected harmful factors
If the home appliance provides noise control mode, then notification recognition is improved, but device complexity increases
Solution Approach 1:
The processor performs multiple functions: it controls motor driving speed, manages communication with terminal devices, detects notification sounds through the audio detector, and manages the noise control mode. By making the processor multi-functional, the patent avoids adding separate dedicated control units, thereby limiting the increase in device complexity
Solution Approach 2:
The noise control functionality is merged with the existing processor and audio detection capabilities of the home appliance. The audio detector that already exists for other purposes is also used for notification sound detection, and the processor that controls motor speed also manages the noise control mode logic, combining multiple functions into existing components
Data Source
AI summary
A home appliance, a home appliance system, and a controlling method thereof are disclosed. The home appliance includes an input interface, a communication interface, a processor, and a motor, wherein the processor is configured to receive input of an instruction regarding whether to activate a noise control mode from a user through the input interface, receive notification information including at least one of a received call or a received message from a terminal device interlocked with the home appliance through the communication interface, and based on the noise control mode being in an inactivated state, ignore the notification information and maintain the driving speed of the motor.