Dehumidifier and method for controlling the same

Abstract

A dehumidifier including an environmental sensor configured to measure temperature and humidity of air and produce corresponding sensor data; a water tank configured to store water generated by a dehumidifying operation of the dehumidifier; a water level sensor configured to detect that a water level in the water tank reaches a predetermined water level; and at least one processor. The at least one processor is configured to calculate a cumulative amount of dehumidification based on sensor data collected from the environmental sensor and correction data, and, based on the water level sensor detecting that the water level in the water tank reaches the predetermined water level, update the correction data based on a difference between the cumulative amount of dehumidification and a predetermined amount of water corresponding to the predetermined water level.

1 . A dehumidifier comprising:
 an environmental sensor configured to measure temperature and humidity of air and produce corresponding sensor data;   a water tank configured to store water generated by a dehumidifying operation of the dehumidifier;   a water level sensor configured to detect that a water level in the water tank reaches a predetermined water level; and   at least one processor configured to:
 calculate a cumulative amount of dehumidification based on sensor data collected from the environmental sensor, and correction data; and, 
 based on the water level sensor detecting that the water level in the water tank reaches the predetermined water level, update the correction data based on a difference between the cumulative amount of dehumidification and a predetermined amount of water corresponding to the predetermined water level. 
   
     
     
         2 . The dehumidifier of  claim 1 , wherein the at least one processor is configured to:
 initialize the cumulative amount of dehumidification based on detection of a water emptying event.   
     
     
         3 . The dehumidifier of  claim 2 , wherein the at least one processor is configured to:
 detect the water emptying event based on a change from a state in which the water level sensor detects that the water level in the water tank reaches the predetermined water level, to a state in which the water level sensor does not detect that the water level in the water tank reaches the predetermined water level.   
     
     
         4 . The dehumidifier of  claim 1 , wherein
 the water level sensor includes a first water level sensor configured to detect that the water level in the water tank reaches a first water level, and a second water level sensor configured to detect that the water level in the water tank reaches a second water level higher than the first water level, and   the at least one processor is configured to:
 based on the first water level sensor detecting that the water level in the water tank reaches the first water level, update the correction data based on a difference between the cumulative amount of dehumidification and a first amount of water corresponding to the first water level. 
   
     
     
         5 . The dehumidifier of  claim 1 , wherein
 the water level sensor includes a first water level sensor configured to detect that the water level in the water tank reaches a first water level, and a second water level sensor configured to detect that the water level in the water tank reaches a second water level higher than the first water level, and   the at least one processor is configured to:
 based on the first water level sensor detecting that the water level in the water tank reaches the first water level, correct the cumulative amount of dehumidification to a first amount of water corresponding to the first water level, and 
 based on the second water level sensor detecting that the water level in the water tank reaches the second water level, update the correction data based on a difference between the cumulative amount of dehumidification and a second amount of water corresponding to the second water level. 
   
     
     
         6 . The dehumidifier of  claim 1 , wherein the at least one processor is configured to:
 estimate a water level of the water tank based on the cumulative amount of dehumidification, and based on the water level sensor detecting that the water level of the water tank reaches the predetermined water level, correct the cumulative amount of dehumidification to the predetermined amount of water.   
     
     
         7 . The dehumidifier of  claim 6 , wherein the at least one processor is configured to:
 display the estimated water level of the water tank through an output interface of the dehumidifier or transmit information related to the estimated water level of the water tank to an external device through wireless communication.   
     
     
         8 . The dehumidifier of  claim 6 , wherein the at least one processor is configured to:
 receive a user input to set a designated water level notification, and   based on the estimated water level of the water tank reaching the designated water level set according to the received user input, output sensory information indicating that the water level of the water tank reaches a designated water level, through an output interface of the dehumidifier, or notify an external device that the water level of the water tank reaches the designated water level, through wireless communication.   
     
     
         9 . The dehumidifier of  claim 6 , wherein the at least one processor is configured to:
 receive a user input to set a designated water level limit, and   stop the dehumidifying operation in response to the estimated water level of the water tank reaching a designated water level set according to the user input.   
     
     
         10 . The dehumidifier of  claim 1 , wherein
 the correction data includes a lookup table in which a correction amount corresponding to a temperature condition and a humidity condition is stored, and   the at least one processor is configured to:
 update the lookup table by matching the temperature and humidity of air measured by the environmental sensor with the temperature condition and the humidity condition and by storing a difference between the cumulative amount of dehumidification and the predetermined amount of water as one of a plurality of factors for determining the correction amount. 
   
     
     
         11 . The dehumidifier of  claim 10 , wherein the at least one processor is configured to:
 determine an average value of the plurality of factors stored in the lookup table as the correction amount.   
     
     
         12 . The dehumidifier of  claim 1 , further comprising:
 an artificial intelligence model stored in a memory,   wherein the at least one processor is configured to train the artificial intelligence model by using the temperature and humidity of air measured by the environmental sensor and the difference between the cumulative amount of dehumidification and the predetermined amount of water, as training data, to output a correction amount.   
     
     
         13 . A method for controlling a dehumidifier that includes an environmental sensor configured to measure temperature and humidity of air and produce corresponding sensor data, a water tank configured to store water generated by a dehumidifying operation of the dehumidifier, and a water level sensor configured to detect that a water level in the water tank reaches a predetermined water level, the method comprising:
 calculating a cumulative amount of dehumidification based on sensor data collected from the environmental sensor, and correction data; and   based on the water level sensor detecting that the water level in the water tank reaches the predetermined water level, updating the correction data based on a difference between the cumulative amount of dehumidification and a predetermined amount of water corresponding to the predetermined water level.   
     
     
         14 . The method for controlling the dehumidifier of  claim 13 , wherein
 the calculating of the cumulative amount of dehumidification includes initializing the cumulative amount of dehumidification based on detection of a water emptying event.   
     
     
         15 . The method for controlling the dehumidifier of  claim 14 , further comprising:
 detecting the water emptying event based on a change from a state in which the water level sensor detects that the water level in the water tank reaches the predetermined water level to a state in which the water level sensor does not detect that the water level in the water tank reaches the predetermined water level.