Air purifying system and method for controlling the air purifying system

Patent metadata

Field	Value
Publication number	US-11629873-B2
Application number	US-202016821087-A
Country	US
Kind code	B2
Filing date	Mar 17, 2020
Priority date	Mar 19, 2019
Publication date	Apr 18, 2023
Grant date	Apr 18, 2023

Abstract

An air purifying system may include a main air purifier placed in an indoor space, a handheld air purifier mounted on the main air purifier, and an air quality sensor IOT device that communicates with the main air purifier. The air quality sensor IOT device may be fixed in an outdoor space adjacent to the indoor space, or may be carried by a user to measure air quality data while the user travels. The main air purifier may automatically operate based on air quality data received from the air quality sensor IOT device.

First claim

What is claimed is:

1. An air filtering system, comprising:
a first air purifier having a fan to suction air and a filter to filter air, the first air purifier being placed at a first position; and
a first sensor device to sense air quality at a second position remote from the first position where the first air purifier placed at, to store the sensed air quality, and to transmit data corresponding to the sensed air quality to the first air purifier, wherein the first air purifier is controlled using the data of the sensed air quality received from the first sensor device.

2. The air filtering system of claim 1 , wherein, when the received data indicates a pollution level that is greater than a predetermined pollution level, the first air purifier is automatically operated to perform at least one of turning on the fan or increasing a speed of the fan.

3. The air filtering system of claim 1 , wherein the first sensor device includes at least one of a timer or a clock to measure and specify time, and the first sensor device is configured to store time-air quality data.

4. The air filtering system of claim 1 , further comprising a second air purifier configured to be seated on and removed from the first air purifier, the second air purifier having a cubic feet per minute (CFM) value that is smaller than a CFM value of the first air purifier.

5. The air filtering system of claim 4 , wherein the second air purifier includes a fan and a filter.

6. The air filtering system of claim 4 , further comprising a seat sensor to sense whether the second air purifier is seated on the first air purifier.

7. The air filtering system of claim 4 , wherein an outer surface of the first air purifier includes a recess configured to receive the second air purifier.

8. The air filtering system of claim 7 , wherein the second air purifier includes a handle, and a bottom of the recess includes a wall that is curved upward and outward away from an inner surface of the recess so as to form a pocket with the recess, the pocket being configured to receive the handle.

9. The air filtering system of claim 1 , wherein the first sensor device is configured to be carried by a user, and the second position is a position to which the user has carried the first sensor device.

10. The air filtering system of claim 1 , wherein the first position is located in an indoor space, the second position is located in an outdoor space outside of the indoor space, and the first sensor device is fixed at the second position.

11. The air filtering system of claim 1 , further comprising a second sensor device to sense air quality at a third position remote from the first position where the first air purifier placed at, to store the sensed air quality, and to transmit data corresponding to the sensed air quality to the first air purifier, wherein the first air purifier is controlled using the data of the sensed air quality received from at least one of the first or second sensor devices.

12. An air purifying system, comprising:
an air purifier having a fan to suction air, the air purifier being placed in an indoor space and configured to purify indoor air, and
a sensor to sense air quality of an outdoor space outside of the indoor space and remote from the indoor space where the air purifier placed in, the sensor being configured to transmit data corresponding to the sensed air quality to the air purifier, wherein the fan of the air purifier is controlled based on the data of the sensed air quality received from the sensor.

13. The air purifying system of claim 12 , wherein the sensor is included in an internet of things (IOT) device, the IOT device being configured to be controlled separately from the air purifier.

14. The air purifying system of claim 13 , wherein the IOT device is configured to be installed and fixed at a position in the outdoor space.

15. The air purifying system of claim 14 , wherein the IOT device is configured to communicate wirelessly with the air purifier.

16. An air purifying system, comprising:
at least one air purifier placed in an indoor space; and
an internet of things (IOT) device having an air quality sensor configured to sense air quality and time during a predetermined time period, the IOT device being configured to store the sensed air quality of an outdoor space remote from the indoor space where the air purifier placed in and time as time-air quality data, transmit the stored time-air quality data to the air purifier, and estimate at least one of a total amount of dust present on a user carrying the IOT device or whether the air purifier has operated during the predetermined time period.

17. The air purifying system of claim 16 , wherein the at least one air purifier includes a main air purifier and a handheld air purifier configured to suction dust and attached to the main air purifier, wherein at least one of the main air purifier, the handheld air purifier, or the IOT device includes a position sensor to measure a position of the IOT device relative to the main air purifier, and wherein, when a position of the IOT device is within a predetermined distance range, the time-air quality data is transmitted from the IOT device to the main air purifier.

18. The air purifying system of claim 17 , wherein, when the estimated amount of dust exceeds a predetermined dust amount, at least one of the IOT device, the main air purifier, or the handheld air purifier displays a recommendation for the user to use the handheld air purifier.

19. An air purifying system, comprising:
a main air purifier in an indoor space;
a cleaner having a motor to suction air and a filter to filter dust from the suctioned air, the cleaner being one of a secondary air purifier and a vacuum cleaner; and
a portable air quality sensor device, including:
a case;
an air quality sensor to sense a pollution level of ambient air;
an output device configured to output at least one of text, image, or a sound based on a sensed pollution level;
a timer or a clock to store time data corresponding to the sensed pollution level;
a controller to estimate total amount of dust exposed to the IOT device based on the pollution level and time data; and
a communication module to transmit at least one of the sensed pollution level, the time data, or the estimated total amount of dust to the main air purifier,
wherein the portable air quality sensor device is configured to sense a pollution level of ambient air which is remote from the indoor space where the main air purifier placed at.

Assignees

• Lg Electronics Inc
• Chungang Univ Industry Academic Cooperation Foundation

Inventors

• Lee David Kangseong
• Chung Haeyoong
• Jeon Jongkeon
• Kang Jiyoung
• Kwak Daeyoung
• Park Sohee

Classifications

• F24F2110/50

  Air quality properties · CPC title

• B01D46/009

  Identification of filter type or position thereof, e.g. by transponders or bar codes · CPC title

• F24F13/32

  Supports for air-conditioning, air-humidification or ventilation units · CPC title

• A47L5/24

  Hand-supported suction cleaners · CPC title

• A47L9/322

  for hand-supported suction cleaners · CPC title