Air Purifier Pre-Activation Using Location-Based Pollution Sensing
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Solution Overview
Problem
Users are exposed to indoor air pollutants such as fine dust until air conditioning devices complete air purification upon entering a house, as existing systems do not proactively initiate purification before the user's arrival.
Innovation Solution
An air conditioning device equipped with a sensor, air purifier, and communicator that measures air pollution levels and communicates with an external server to initiate purification upon detecting high pollution levels, ensuring the air is purified before the user enters the premises.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the air purifier is activated only when the user manually turns it on, then energy consumption is reduced, but the user is exposed to air pollutants until purification is completed
Solution Approach 1:
The air purifier is activated in advance based on predicted user arrival time. The processor receives location information from the mobile terminal, calculates arrival time at the home location, and activates the air purifier before the user returns, ensuring air purification is completed before the user enters the house.
Solution Approach 2:
The system continuously monitors the user's location through the mobile terminal and adjusts the air purifier operation accordingly. When the user approaches the home location, the system receives location information, calculates arrival time, and activates the air purifier at the appropriate time to ensure air quality is improved before the user arrives.
2Measurement precision
If the sensor is activated continuously to monitor air pollution levels, then air quality monitoring is improved, but energy consumption increases
Solution Approach 1:
The sensor is activated periodically based on user location rather than continuously. The processor receives location information from the mobile terminal and activates the sensor to measure air pollution levels when the user is approaching the home location, rather than keeping it on all the time.
Solution Approach 2:
The sensor is activated in advance of the user's arrival based on predicted arrival time. The processor calculates when the user will arrive at home and activates the sensor early enough to measure air pollution levels and determine whether air purifier activation is needed, but not continuously throughout the day.
3Object-affected harmful factors
If the air purifier is activated in advance based on user location, then air quality before user arrival is improved, but device complexity increases
Solution Approach 1:
The mobile terminal serves multiple functions: it acts as both the user's communication device and the source of location information for the air conditioning device. The processor integrates multiple functions including receiving location information, calculating arrival time, measuring air pollution levels, and controlling the air purifier, reducing the need for separate dedicated components.
Solution Approach 2:
The processor acts as an intermediary that receives location information from the mobile terminal, processes this data to determine user arrival time, and uses this information to control both the sensor and air purifier operations. This centralized control approach manages system complexity by coordinating multiple components through a single processing unit.
Data Source
AI summary
An air conditioning device includes an air purifier, a sensor, a communicator, and a processor. The sensor is configured to measure an air pollution level. The communicator comprises circuitry and configured to communicate with a server. The processor is configured to activate the sensor in a state where the air purifier is not driven, in response to receiving a first signal requesting an air pollution level state information from the server based on a location of a mobile terminal, transmit a second signal indicating that the air conditioning device needs to be driven to the server based on the air pollution level measured by the sensor, and drive the air purifier in response to a driving instruction received from the server.