Washing machine and method for controlling the same

Abstract

The present disclosure relates to a washing machine and a method for controlling the same. The washing machine according to an embodiment of the present disclosure includes a washing tub to accommodate clothes and rotatably installed, a motor to rotate the washing tub, and a control unit to control the motor to rotate the washing tub, wherein the control unit measures a plurality of types of data previously set while the washing tub accelerates from a first rotation velocity to a second rotation velocity which is faster than the first rotation velocity, inputs the plurality of types of data into a pre-learned artificial neural network as an input value and calculates an expected UB pattern as a result value, and controls the motor so that the washing tub is rotated in a preset manner based on a type of the calculated UB pattern.

What is claimed is: 
     
         1 . A washing machine comprising:
 a washing tub configured to accommodate clothes and rotatably installed;   a motor configured to rotate the washing tub; and   a control unit configured to control the motor to rotate the washing tub,   wherein the control unit is further configured to:   measure a plurality of types of data previously set while the washing tub accelerates from a first rotation velocity to a second rotation velocity which is faster than the first rotation velocity;   input the plurality of types of data into a pre-learned artificial neural network as an input value and calculate an expected UB pattern as a result value; and   control the motor so that the washing tub is rotated in a preset manner based on a type of the calculated UB pattern.   
     
     
         2 . The washing machine of  claim 1 , wherein a clothes dispersion is performed in a way that the clothes are raised up by a predetermined height then fall in a maintaining section in which a rotation of the washing tub is maintained at the first rotation velocity and in an accelerating section in which the washing tub accelerates from the first rotation velocity to the second rotation velocity. 
     
     
         3 . The washing machine of  claim 2 , wherein the clothes dispersion is performed before a rotation velocity of the washing tub reaches the second rotation velocity, and the clothes are stuck to the washing tub when the rotation velocity of the washing tub reaches the second rotation velocity, and this hinders the clothes dispersion from being performed. 
     
     
         4 . The washing machine of  claim 1 , wherein the plurality of types of data comprises at least one among an average value of UB values for a predetermined time, an average value of rotation velocity values of the washing tub for a predetermined time, an average value of current values applied to the motor for a predetermined time, and an average value of vibration values measured by a vibration sensor for a predetermined time. 
     
     
         5 . The washing machine of  claim 1 , wherein the control unit measures the plurality of types of data at every predetermined time in an accelerating section in which the washing tub accelerates from the first rotation velocity to the second rotation velocity. 
     
     
         6 . The washing machine of  claim 5 , wherein the control unit determines whether to accelerate, decelerate or maintain the rotation velocity of the washing tub at every predetermined time, based on a type of UB pattern calculated through an artificial neural network by measuring the plurality of types of data at every predetermined time and using the calculated plurality of types of data. 
     
     
         7 . The washing machine of  claim 1 , wherein the calculated UB pattern comprises a UB increase pattern in which a UB value is expected to increase, a UB maintenance pattern in which the UB value is expected to maintain, and a UB decrease pattern in which the UB value is expected to decrease. 
     
     
         8 . The washing machine of  claim 7 , wherein the control unit decreases the rotation velocity of the washing tub when the calculated UB pattern is the UB increase pattern in which the UB value is expected to increase. 
     
     
         9 . The washing machine of  claim 7 , wherein the control unit increases the rotation velocity of the washing tub when the calculated UB pattern is the UB decrease pattern in which the UB value is expected to decrease. 
     
     
         10 . The washing machine of  claim 7 , wherein the control unit maintains the rotation velocity of the washing tub when the calculated UB pattern is the UB maintenance pattern in which the UB value is expected to maintain. 
     
     
         11 . The washing machine of  claim 1 , wherein the control unit short-circuits the rotation of the washing tub when the UB value measured in an accelerating section in which the washing tub is accelerated from the first rotation velocity to the second rotation velocity exceeds a preset reference value. 
     
     
         12 . The washing machine of  claim 1 , wherein the control unit short-circuits the rotation of the washing tub when the washing tub fails to reach the second rotation velocity within a predetermined time duration since a time when the washing tub starts accelerating from the first rotation velocity to the second rotation velocity. 
     
     
         13 . A method for controlling a washing machine, the method comprising:
 measuring a plurality of types of data previously set while a washing tub accelerates from a first rotation velocity to a second rotation velocity which is faster than the first rotation velocity;   inputting the plurality of types of data into a pre-learned artificial neural network as an input value and calculating an expected UB pattern as a result value; and   controlling a motor so that the washing tub is rotated in a preset manner based on a type of the calculated UB pattern.   
     
     
         14 . The method of  claim 13 , wherein the calculated UB pattern comprises a UB increase pattern in which a UB value is expected to increase, a UB maintenance pattern in which the UB value is expected to maintain, and a UB decrease pattern in which the UB value is expected to decrease. 
     
     
         15 . The method of  claim 14 , wherein the controlling decreases the rotation velocity of the washing tub when the calculated UB pattern is the UB increase pattern in which the UB value is expected to increase. 
     
     
         16 . The method of  claim 14 , wherein the controlling increases the rotation velocity of the washing tub when the calculated UB pattern is the UB decrease pattern in which the UB value is expected to decrease. 
     
     
         17 . The method of  claim 14 , wherein the controlling maintains the rotation velocity of the washing tub when the calculated UB pattern is the UB maintenance pattern in which the UB value is expected to maintain.