Wireless power transmitting apparatus including user interface and method for determining whether touch input of wireless power transmitting apparatus has occurred
A wireless power transmission apparatus includes a user interface configured to receive a user input through touch sensors, a memory, and a processor. The processor may obtain touch data values corresponding to the touch sensors, respectively. The processor may obtain an average touch data value of the touch sensors, based on the touch data values. The processor determines a variable threshold value with respect to a touch sensor from among the touch sensors, and the variable threshold value is obtained by adding, to the average touch data value, a default threshold value corresponding to the touch sensor. The processor determines whether or not a touch input is generated with respect to the touch sensor, based on a result of comparing a touch data value with respect to the touch sensor with the variable threshold value with respect to the touch sensor.
1. A wireless power transmission apparatus comprising:
a user interface configured to receive a user input through a plurality of touch sensors;
a memory; and
a processor configured to:
obtain touch data values corresponding to the plurality of touch sensors, respectively;
obtain an average touch data value of the plurality of touch sensors, based on the touch data values;
determine a variable threshold value with respect to a touch sensor from among the plurality of touch sensors, the variable threshold value being obtained by adding, to the average touch data value, a default threshold value corresponding to the touch sensor; and
determine whether or not a touch input is generated with respect to the touch sensor, based on a result of comparing a touch data value with respect to the touch sensor with the variable threshold value with respect to the touch sensor.
2. The wireless power transmission apparatus of claim 1 , wherein the processor is further configured to:
in according to the touch data value with respect to the touch sensor exceeding the variable threshold value with respect to the touch sensor, determine that the touch input with respect to the touch sensor is normal; and
in according to the touch data value with respect to the touch sensor being equal to or less than the variable threshold value with respect to the touch sensor, determine that the touch input with respect to the touch sensor is abnormal.
3. The wireless power transmission apparatus of claim 1 , wherein the user interface comprises:
a first touch sensor group comprising a plurality of first touch sensors connected to a first touch controller among the plurality of touch sensors; and
a second touch sensor group comprising a plurality of second touch sensors connected to a second touch controller among the plurality of touch sensors, and
the processor is further configured to
obtain a first average touch data value, based on touch data values of the first touch sensor group, the touch data values of the first touch sensor group being provided from the first touch controller, and obtain a second average touch data value, based on touch data values of the second touch sensor group, the touch data values of the second touch sensor group being provided from the second touch controller.
4. The wireless power transmission apparatus of claim 3 , wherein the processor is further configured to:
in according to the touch sensor being included in the first touch sensor group, determine a first variable threshold value obtained by adding, to the default threshold value with respect to the touch sensor, the first average touch data value and compare the touch data value with respect to the touch sensor with the first variable threshold value to determine whether or not a touch input is generated with respect to the touch sensor; and
in according to the touch sensor being included in the second touch sensor group, determine a second variable threshold value obtained by adding, to the default threshold value with respect to the touch sensor, the second average touch data value and compare the touch data value with respect to the touch sensor with the second variable threshold value to determine whether or not a touch input is generated with respect to the touch sensor.
5. The wireless power transmission apparatus of claim 1 , wherein the processor is further configured to:
obtain a touch data change rate, which is a touch data change amount per unit time of the touch sensor; and
compare the touch data change rate with a reference data change rate of the touch sensor, and in according to the touch data change rate being less than the reference data change rate, determine that the touch input with respect to the sensor is abnormal.
6. The wireless power transmission apparatus of claim 5 , wherein the processor is further configured to obtain the touch data change rate of the touch sensor by a kth (k is an integer greater than or equal to 3) touch data value and a k−2th touch data value of the touch sensor.
7. The wireless power transmission apparatus of claim 5 , wherein the processor is further configured to, in according to the touch data change rate based on a directly previous touch data value of the touch sensor being less than the reference data change rate of the touch sensor, determine that a touch input according to a current touch data value of the touch sensor is abnormal.
8. The wireless power transmission apparatus of claim 1 , wherein the user interface comprises a dummy touch sensor not mapped with a touchable touch button, and
the processor is further configured to obtain an average touch data value of the touch data values corresponding to the plurality of touch sensors, respectively, and a touch data value corresponding to the dummy touch sensor.
9. A method, performed by a wireless power transmission apparatus, of determining whether or not a touch input is generated, the method comprising:
obtaining touch data values corresponding to a plurality of touch sensors, respectively;
obtaining an average touch data value of the plurality of touch sensors, based on the touch data values;
determining a variable threshold value with respect to a touch sensor from among the plurality of touch sensors, the variable threshold value being obtained by adding, to the average touch data value, a default threshold value corresponding to the touch sensor; and
determining whether or not a touch input is generated with respect to the touch sensor, based on a result of comparing a touch data value with respect to the touch sensor with the variable threshold value with respect to the touch sensor.
10. The method of claim 9 , wherein the determining whether or not a touch input is generated with respect to the touch sensor comprises:
in according to the touch data value with respect to the touch sensor exceeding the variable threshold value with respect to the touch sensor, determining that the touch input with respect to the touch sensor is normal; and
in according to the touch data value with respect to the touch sensor being equal to or less than the variable threshold value with respect to the touch sensor, determining that the touch input with respect to the touch sensor is abnormal.
11. The method of claim 9 , wherein a user interface of the wireless power transmission apparatus comprises:
a first touch sensor group comprising a plurality of first touch sensors connected to a first touch controller among the plurality of touch sensors; and
a second touch sensor group comprising a plurality of second touch sensors connected to a second touch controller among the plurality of touch sensors, and
the obtaining the average touch data value comprises obtaining a first average touch data value, based on touch data values of the first touch sensor group, the touch data values of the first touch sensor group being provided from the first touch controller, and obtaining a second average touch data value, based on touch data values of the second touch sensor group, the touch data values of the second touch sensor group being provided from the second touch controller.
12. The method of claim 9 , wherein the determining whether or not a touch input is generated with respect to the touch sensor comprises:
obtaining a touch data change rate, which is a touch data change amount per unit time of the touch sensor; and
comparing the touch data change rate with a reference data change rate of the touch sensor, and in according to the touch data change rate being less than the reference data change rate, determining that the touch input with respect to the sensor is abnormal.
13. The method of claim 12 , wherein the identifying the touch data change rate of the touch sensor comprises obtaining the touch data change rate of the touch sensor by a kth (k is an integer greater than or equal to 3) touch data value and a k−2th touch data value of the touch sensor.
14. The method of claim 12 , wherein the determining whether or not a touch input is generated with respect to the touch sensor comprises, in according to the touch data change rate based on a directly previous touch data value of the touch sensor being less than the reference data change rate of the touch sensor, determining that a touch input according to a current touch data value of the touch sensor is abnormal.
15. The method of claim 9 , wherein the wireless power transmission apparatus further comprises a dummy touch sensor not mapped with a touchable touch button, and
the obtaining the average touch data value comprises obtaining an average of the touch data values corresponding to the plurality of touch sensors, respectively, and a touch data value corresponding to the dummy touch sensor.