WASHING MACHINE AND CONTROL METHOD OF THE SAME
First Claim
Patent Images
1. A washing machine comprising:
- an object whose displacement is changed depending upon weight of laundry;
a sensor module to sense an image, light amount or optical pattern changed depending upon the displacement of the object; and
a controller to detect the weight of the laundry based on the image change or the light amount change.
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Accused Products
Abstract
Disclosed herein are a washing machine and a control method of the same wherein image change or light amount change based on displacement of an object, which is changed depending upon the weight of laundry, is sensed to detect the weight of the laundry, thereby improving reliability in detecting the weight of the laundry.
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Citations
22 Claims
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1. A washing machine comprising:
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an object whose displacement is changed depending upon weight of laundry; a sensor module to sense an image, light amount or optical pattern changed depending upon the displacement of the object; and a controller to detect the weight of the laundry based on the image change or the light amount change. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A control method of a washing machine having an object whose displacement is changed depending upon weight of laundry, the control method comprising:
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sensing image change of the object depending upon the displacement of the object; and detecting the weight of the laundry based on the sensed image change of the object. - View Dependent Claims (14, 15, 16)
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17. A control method of a washing machine having an object whose displacement is changed depending upon weight of laundry, the control method comprising:
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sensing images of the object before and after the laundry is put into a rotary tub; sensing position change of a common portion between the sensed images of the object; and detecting the weight of the laundry based on the sensed position change of the common portion. - View Dependent Claims (18, 19)
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20. A control method of a washing machine having a sensor module comprising a light emitting unit to emit light and a light receiving unit to receive the light emitted from the light emitting unit, and a water tub whose displacement is changed depending upon weight of laundry, the sensor module being disposed such that an amount of the light, corresponding to displacement of the water tub, received by the light receiving unit is changed, the control method comprising:
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sensing light amount change depending upon the displacement of the water tub; and detecting the weight of the laundry based on the sensed light amount change.
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21. A control method of a washing machine having a sensor module comprising a light source unit to emit light and an optical pattern sensor to receive the light emitted from the light source unit, and a water tub whose displacement is changed depending upon weight of laundry, the sensor module being disposed such that an optical pattern, corresponding to displacement of the water tub, sensed by the optical pattern sensor is changed, the control method comprising:
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sensing optical pattern change depending upon the displacement of the water tub; and detecting the weight of the laundry based on the sensed optical pattern change.
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22. A method for a washing machine having an object which changes responsive to a weight of laundry, the method comprising:
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sensing a change in an image of the object; and determining the weight of the laundry responsive to the change.
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Specification