KR20160124059A - Smart switch integrating tactile sensor and luminous element and method for controlling thereof - Google Patents

Abstract

The present invention relates to a smart switch capable of providing a wide range of emotional experience by controlling output of a luminous element according to a position and strength of a touch, and a method of controlling the same. The smart switch wherein a tactile sensor and a luminous element are combined, according to an embodiment of the present invention, comprises: the tactile sensor in which an electrical signal corresponding to strength and a position of a predetermined touch is formed when the touch is applied to the switch; a luminous element radiating light; and a controller measuring the position and strength of the touch using the electrical signal formed in the tactile sensor and controlling output of the light radiated by the luminous element according to a result of the measurement. The tactile sensor includes: multiple sensing resistors changes of resistance values of which are induced according to the touch; and multiple intermediate resistors each of which is arranged between the multiple sensing resistors.

Description

TECHNICAL FIELD [0001] The present invention relates to a smart switch that integrates a tactile sensor and a light emitting device, and a control method thereof. [0002]

The present invention relates to a smart switch in which a tactile sensor and a light emitting element are fused and a control method thereof. More particularly, the present invention relates to a smart switch capable of providing various emotions by controlling the output of a light emitting element according to the position and intensity of a touch, And a control method.

In recent years, touch panel technology is deeply embedded in our everyday life, providing convenience in various aspects, and has become a key technology essential for everyday life. Generally, such a touch panel technology can be used for various electronic / communication devices such as a notebook, a personal digital assistant (PDA), a game machine, a smart phone, and navigation, and can be used for selecting or inputting a function desired by a user.

In this regard, FIG. 1 shows an example of a car button system conventionally used in connection with the present invention. As shown in FIG. 1, the conventional button system includes a plurality of light emitting diodes, and each of the switches indicated by circles in FIG. 1 is connected to a control unit through wires.

However, the conventional automobile button system merely provides ON / OFF functions, and it is difficult to implement a system centered on emotion that reflects industrial trends that are interested in recent products or services centering on emotion. The existing button system is not suitable for realizing emotions due to its low degree of freedom of expression, and it is difficult to connect with smart devices.

Furthermore, as shown in FIG. 1, the wiring for setting the function or sensing of each switch becomes excessively large, which increases the complexity more than necessary and increases maintenance and management costs.

Accordingly, there is a need to develop a smart switch capable of simplifying the system structure and providing a variety of emotions to stimulate consumers' purchasing desires.

Korean Patent Publication No. 10-2014-0120748

Disclosure of Invention Technical Problem [8] The present invention provides a smart switch and a control method thereof that can provide various emotions by controlling output of a light emitting device according to the position and intensity of a touch, It has its purpose.

More specifically, the present invention provides a smart switch capable of emulating an image of a product by mounting a tactile sensor responsive to the pressure or force of the applied touch and a light emitting element that visually expresses the tactile sensor. .

It is another object of the present invention to provide a smart switch which can simplify the installation structure and is easy to maintain and manage because only four wires are required for the tactile sensor.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are not intended to limit the invention to the precise form disclosed. It can be understood.

In order to achieve the above-described object, an embodiment of the present invention relates to a smart switch in which a tactile sensor and a light emitting element are fused together. When a predetermined touch is applied, an electric signal corresponding to the touch position and the touch intensity is formed Tactile sensor; A luminous element for illuminating light; And a controller for measuring the position of the touch and the intensity of the touch using the electric signal formed on the tactile sensor and controlling an output of light emitted from the light emitting element according to the measurement result, A plurality of sense resistors for inducing a resistance value change according to the touch; And a plurality of intermediate resistors each disposed between the plurality of sense resistors, wherein a resistance value of the first sense resistor, which is at least a part of the plurality of sense resistors, is changed by the touch, And is formed corresponding to the resistance value change of the first sense resistor.

The light emitting device may be a light emitting diode or an organic light emitting diode.

The tactile sensor further includes: a first electrode in contact with an upper portion of the plurality of sense resistors; And a second electrode disposed apart from the first electrode and in contact with a lower portion of the plurality of sense resistors, wherein the plurality of intermediate resistors are disposed on the second electrode, to provide.

The controller applies an input signal to one end of the second electrode, and the electrical signal is formed in one of the first electrode and the second electrode by the applied input signal.

When the other end of the second electrode is connected to the ground and the other end of the first electrode is open, an electric signal corresponding to the position of the touch is formed at one end of the first electrode.

에 따라 결정된다. 상기 수학식에서,

는 상기 터치의 위치에 대응되는 전기신호이고,

은 상기 입력신호이며,

은 상기 제 2 전극의 일단에서부터 상기 터치가 인가된 위치 사이의 저항값이고,

는 상기 터치가 인가된 위치에서부터 상기 제 2 전극의 타단 사이의 저항값이다.The electric signal corresponding to the position of the touch is expressed by the following equation

. In the above equation,

Is an electric signal corresponding to the position of the touch,

Is the input signal,

Is a resistance value between one end of the second electrode and the position where the touch is applied,

Is a resistance value between a position where the touch is applied and the other end of the second electrode.

In addition, when one end of the first electrode is open and the other end of the first electrode is connected to the ground, an electric signal corresponding to the strength of the touch is formed at the other end of the second electrode.

에 따라 결정된다. 상기 수학식에서,

는 상기 터치의 세기에 대응되는 전기신호이고,

은 상기 입력신호이며,

은 상기 제 2 전극의 일단에서부터 상기 터치가 인가된 위치 사이의 저항값이고,

는 상기 터치가 인가된 위치의 감지 저항체의 저항값이다.Further, the electric signal corresponding to the intensity of the touch is expressed by the following equation

. In the above equation,

Is an electric signal corresponding to the intensity of the touch,

Is the input signal,

Is a resistance value between one end of the second electrode and the position where the touch is applied,

Is a resistance value of the sensing resistor at the position where the touch is applied.

The tactile sensor further includes: a first film disposed on the first electrode; And a second film disposed below the second electrode.

Meanwhile, in order to realize the above-described problem, a smart switch, which is a combination of a tactile sensor and a light emitting element, which is related to another example of the present invention, A tactile sensor for forming a tactile sensor; A luminous element for illuminating light; And a controller for measuring the position of the touch and the intensity of the touch using the electric signal formed on the tactile sensor and controlling an output of light emitted from the light emitting element according to the measurement result, A plurality of sense resistors for inducing a resistance value change according to the touch; A plurality of first intermediate resistors each disposed between the plurality of sense resistors; And a plurality of second intermediate resistors each disposed between the plurality of sense resistors and spaced apart from the first middle resistors, wherein the plurality of second sense resistors The resistance value is changed, and the electric signal is formed corresponding to a change in resistance value of the first sense resistor.

The light emitting device may be a light emitting diode or an organic light emitting diode.

The tactile sensor further includes: a first electrode in contact with an upper portion of the plurality of sense resistors; And a second electrode disposed apart from the first electrode and in contact with a lower portion of the plurality of sense resistors, wherein the plurality of first intermediate resistors are disposed on the first electrode, And the plurality of second intermediate resistors are disposed on the second electrode to provide a resistance value to the second electrode.

The controller applies an input signal to one end of the second electrode, and the electrical signal is formed in one of the first electrode and the second electrode by the applied input signal.

When the other end of the second electrode is connected to the ground and the other end of the first electrode is open, an electric signal corresponding to the position of the touch is formed at one end of the first electrode.

에 따라 결정된다. 상기 수학식에서,

는 상기 터치의 위치에 대응되는 전기신호이고,

은 상기 입력신호이며,

은 상기 제 2 전극의 일단에서부터 상기 터치가 인가된 위치 사이의 저항값이고,

는 상기 터치가 인가된 위치에서부터 상기 제 2 전극의 타단 사이의 저항값이다.The electric signal corresponding to the position of the touch is expressed by the following equation

. In the above equation,

Is an electric signal corresponding to the position of the touch,

Is the input signal,

Is a resistance value between one end of the second electrode and the position where the touch is applied,

Is a resistance value between a position where the touch is applied and the other end of the second electrode.

The control unit may generate a difference signal using the first electrical signal and the second electrical signal and measure the intensity of the touch using the difference signal. The other end of the first electrode is connected to the ground, When one end of the first electrode is opened, the first electrical signal is formed at the other end of the second electrode, the other end of the first electrode is connected to the ground, and the other end of the second electrode is opened, A second electrical signal is formed at one end of the first electrode.

에 따라 결정된다. 상기 수학식에서,

는 상기 제 1 전기신호이고,

은 상기 입력신호이며,

은 상기 제 2 전극의 일단에서부터 상기 터치가 인가된 위치 사이의 저항값이고,

는 상기 터치가 인가된 위치에서부터 상기 제 1 전극의 타단 사이의 저항값이며,

는 상기 터치가 인가된 위치의 감지 저항체의 저항값이다.Further, the first electric signal may be expressed by Equation

. In the above equation,

Is the first electrical signal,

Is the input signal,

Is a resistance value between one end of the second electrode and the position where the touch is applied,

Is a resistance value between a position where the touch is applied and the other end of the first electrode,

Is a resistance value of the sensing resistor at the position where the touch is applied.

에 따라 결정된다. 상기 수학식에서,

는 상기 제 1 전기신호이고,

은 상기 입력신호이며,

은 상기 제 2 전극의 일단에서부터 상기 터치가 인가된 위치 사이의 저항값이고,

는 상기 터치가 인가된 위치에서부터 상기 제 1 전극의 타단 사이의 저항값이며,

는 상기 터치가 인가된 위치의 감지 저항체의 저항값이다.Further, the second electric signal may be expressed by Equation

. In the above equation,

Is the first electrical signal,

Is the input signal,

Is a resistance value between one end of the second electrode and the position where the touch is applied,

Is a resistance value between a position where the touch is applied and the other end of the first electrode,

Is a resistance value of the sensing resistor at the position where the touch is applied.

이고, 상기 복수의 제 2 중간 저항체 각각의 저항값은

이며, 상기 복수의 제 1 중간 저항체의 개수는

이고, 상기 복수의 제 2 중간 저항체의 개수는

이며, 상기 차분신호

는 수학식

에 따라 결정된다.Further, the resistance value of each of the plurality of first intermediate resistors is

, And the resistance value of each of the plurality of second intermediate resistors is

, And the number of the first intermediate resistors

, And the number of the plurality of second intermediate resistors

, And the difference signal

Is expressed by the following equation

.

Also, when a plurality of touches are applied, the controller does not measure the position of the touch and the strength of the touch.

Also, the output of the light controlled by the controller is at least one of the intensity of the light, the color of the light, and the light emission pattern.

According to another aspect of the present invention, there is provided a method of controlling a smart switch in which a tactile sensor and a light emitting device are fused, comprising: applying a predetermined touch to a tactile sensor; Forming an electric signal corresponding to a position of the touch and an intensity of the touch on the tactile sensor; Measuring a position of the touch and an intensity of the touch using an electric signal formed on the tactile sensor; And controlling the output of light emitted from a luminous element according to a result of the measurement, wherein the tactile sensor comprises: a plurality of sense resistors for inducing a change in resistance value according to the touch; Wherein a resistance value of a first sense resistor, which is at least a part of the plurality of sense resistors, is changed by the touch, and the electric signal is detected by the first sensing resistor And is formed corresponding to the resistance value change of the resistor.

According to another aspect of the present invention, there is provided a method of controlling a smart switch in which a tactile sensor and a light emitting device are fused, comprising: applying a predetermined touch to a tactile sensor; Forming an electric signal corresponding to a position of the touch and an intensity of the touch on the tactile sensor; Measuring a position of the touch and an intensity of the touch using an electric signal formed on the tactile sensor; And controlling the output of light emitted from a luminous element according to a result of the measurement, wherein the tactile sensor includes a plurality of sense resistors for inducing a resistance value change according to the touch, A plurality of first intermediate resistors each disposed between the plurality of sense resistors and a plurality of second intermediate resistors disposed between the plurality of sense resistors and spaced apart from the first middle resistors, The resistance value of the first sensing resistor being at least a part of the plurality of sensing resistors is changed by the resistance of the first sensing resistor, and the electrical signal is formed corresponding to the resistance change of the first sensing resistor.

On the other hand, in a program tangibly embodying instructions that can be executed by a digital processing apparatus to perform a method of controlling a smart switch, a program for controlling the smart switch of a program related to an example of the present invention for realizing the above- The method includes: applying a predetermined touch to a tactile sensor; Forming an electric signal corresponding to a position of the touch and an intensity of the touch on the tactile sensor; Measuring a position of the touch and an intensity of the touch using an electric signal formed on the tactile sensor; And controlling the output of light emitted from a luminous element according to a result of the measurement, wherein the tactile sensor comprises: a plurality of sense resistors for inducing a change in resistance value according to the touch; Wherein a resistance value of a first sense resistor, which is at least a part of the plurality of sense resistors, is changed by the touch, and the electric signal is detected by the first sensing resistor And is formed corresponding to the resistance value change of the resistor.

Meanwhile, in a program tangibly embodying instructions that can be executed by a digital processing apparatus to perform a method of controlling a smart switch, a program of a program related to another example of the present invention for realizing the above- The control method includes: applying a predetermined touch to the tactile sensor; Forming an electric signal corresponding to a position of the touch and an intensity of the touch on the tactile sensor; Measuring a position of the touch and an intensity of the touch using an electric signal formed on the tactile sensor; And controlling the output of light emitted from a luminous element according to a result of the measurement, wherein the tactile sensor includes a plurality of sense resistors for inducing a resistance value change according to the touch, A plurality of first intermediate resistors each disposed between the plurality of sense resistors and a plurality of second intermediate resistors disposed between the plurality of sense resistors and spaced apart from the first middle resistors, The resistance value of the first sensing resistor being at least a part of the plurality of sensing resistors is changed by the resistance of the first sensing resistor, and the electrical signal is formed corresponding to the resistance change of the first sensing resistor.

The present invention provides a smart switch and a control method thereof that can provide various emotions by controlling the output of a light emitting device according to the position and intensity of a touch.

Specifically, the present invention can provide a smart switch capable of emulating images of a product by mounting a tactile sensor responsive to the pressure or force of the applied touch and a light emitting element that visually expresses the tactile sensor.

In addition, the present invention can provide a user with a smart switch which can simplify the installation structure and is easy to maintain and manage since only four wires are required for the tactile sensor.

It should be understood, however, that the effects obtained by the present invention are not limited to the above-mentioned effects, and other effects not mentioned may be clearly understood by those skilled in the art to which the present invention belongs It will be possible.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate a preferred embodiment of the invention and, together with the description, serve to provide a further understanding of the technical idea of the invention, It should not be construed as limited.
1 shows an example of a car button system that has been conventionally used in connection with the present invention.
2A and 2B show an example of a smart switch that can be implemented according to the present invention.
Fig. 3 shows a first embodiment of the smart switch of the present invention.
4 is a schematic diagram of a first embodiment of the smart switch of the present invention.
5 shows a control structure of a control section that can be applied to the first embodiment of the smart switch of the present invention.
6 shows a second embodiment of the smart switch of the present invention.
FIG. 7 illustrates a second embodiment of the smart switch of the present invention.
8 shows a control structure of a control section which can be applied to the second embodiment of the smart switch of the present invention.
9 shows a third embodiment of the smart switch of the present invention.
10 is a flowchart showing an example of a control method of the smart switch according to the present invention.

Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings. In addition, the embodiment described below does not unduly limit the contents of the present invention described in the claims, and the entire configuration described in this embodiment is not necessarily essential as the solution means of the present invention.

<Structure of Smart Switch>

Hereinafter, the structure of the smart switch proposed by the present invention will be described in detail with reference to the drawings.

2A and 2B show an example of a smart switch that can be implemented according to the present invention. Referring to FIGS. 2A and 2B, the smart switch 100 of the present invention may include a tactile sensor 10, a light emitting device 30, and a controller 50.

However, the components shown in Figs. 2A and 2B are not essential, and a smart switch 100 having more or fewer components may be implemented. Also, it is possible that the components shown in Figs. 2A and 2B are connected to each other in an interdependent manner, and that the components are separately or integrally implemented as shown in Figs. 2A and 2B.

When an external touch is applied to the smart switch 100 according to the present invention, the tactile sensor 10 generates an electric signal for sensing the position of the touch and the intensity of the touch when the pressure is applied. The electric signal formed by the tactile sensor 10 is transmitted to the measurement module 52 of the controller 50 and the measurement module 52 can measure the position and the intensity of the touch using the electric signal.

The light emitting device 30 is configured to generate an optical output using an electrical signal supplied from a power supply unit (not shown). In the present invention, the light emitting device 30 may be a light emitting diode (LED), an organic light emitting diode (OLED), or the like.

A light-emitting diode is a device in which electrons and holes meet at the P-N junction (P-N junction) due to the application of current. The light emitting diode may emit light of RGB colors, and light output under the control of the control module 54 of the control unit 50 may be controlled. The control module 54 can control the intensity of the light emitted from the light emitting diode, the color of the light, the light emission pattern, and the like.

The control unit 50 may include a measurement module 52 for sensing touch and a control module 54 for controlling the output of the light emitting device 30. As shown in FIG. 2A, the controller 50 is provided with four terminals A, B, C, and D, and four terminals are connected to four wires connected by the tactile sensor 10. Since the smart switch 100 of the present invention requires only four wires, the smart switch 100 has a very simplified structure as compared with the conventional switch system.

Hereinafter, the first to third embodiments of the smart switch will be described in detail with reference to the drawings.

First Embodiment

Fig. 3 shows a first embodiment of the smart switch of the present invention. 3, the first embodiment of the smart switch 100 of the present invention includes a sensing resistor 12, an intermediate resistor 14, electrodes 20 and 22, films 24 and 26, .

The film patterning the electrode includes a first film 24 and a second film 26. The first film 24 and the second film 26 are vertically spaced apart, and the first film 24 and the second film 26 are arranged to be coupled in parallel. The first film 24 and the second film 26 are preferably made of glass, a reinforced polymer substrate, or a PI substrate.

The electrode includes a first electrode 20 disposed at an upper portion and a second electrode 22 disposed at a lower portion. The first electrode 20 and the second electrode 22 are vertically spaced apart from each other and both ends of the electrodes 20 and 22 are connected to external terminals through four terminals formed on the control unit.

The first electrode 20 and the second electrode 22 may be made of copper (Cu) or silver (Ag). The first electrode 20 and the second electrode 22 are formed of a transparent material such as indium tin oxide (ITO), carbon nanotube (CNT), graphene, metal nanowire, (PEDOT, Poly (3,4-ethylenedioxythiophene)) or a transparent conductive oxide (TCO).

The sense resistor 12 is a device in which a resistance value change can be induced according to a touch, and a plurality of the sense resistor 12 are mounted. The sense resistor 12 is disposed between the first electrode 20 and the second electrode 22. That is, the upper portion of the sensing resistor 12 is in contact with the first electrode 20, and the lower portion of the sensing resistor 12 is in contact with the second electrode 22.

A plurality of intermediate resistors (14) are provided, and each of the plurality of intermediate resistors (14) is disposed between the plurality of sense resistors (12). The intermediate resistor 14 is disposed on one of the first electrode 20 and the second electrode 22.

3 shows a structure in which the intermediate resistor 14 is disposed on the second electrode 22 but the arrangement of the intermediate resistor 14 is not limited thereto and the first electrode 20 As shown in FIG. The structure in which the intermediate resistor 14 is disposed on the first electrode 20 is the same as the structure in which the intermediate resistor 14 is disposed on the second electrode 22. However, .

In the first embodiment of the smart switch 100 having the above-described structure, a method of measuring the position of the touch and the intensity of the touch will be described.

4 is a schematic diagram of a first embodiment of the smart switch of the present invention. 4, the sense resistor 12 can be modeled as a variable resistor, and the intermediate resistor 14 is modelable as a resistor disposed on the second electrode 22. The resistance value of the variable resistor is changed according to the touch of the sense resistor 12, and the sense resistor 12 of the non-touch portion has a very large resistance value (over 100 k?).

The control unit 50 applies an input signal V _in to one end (terminal B) of the second electrode to measure a touch, and thus the electric signal formed on the tactile sensor 10 is detected by the measurement module 52 .

Here, it is assumed that a touch is applied to the position of the sense resistor 12 described as RS _k , and the position and intensity of the touch are measured.

In order to measure the position of the touch, the controller 50 connects the ground to the other end (D terminal) of the second electrode, and opens the other end (C terminal) of the first electrode. At this time, an electric signal formed at one end (A terminal) of the first electrode can be expressed as Equation (1).

Since the resistance value of the sense resistor 12 is a preset value, the measurement module 52 can measure the position where the touch is applied using the electric signal of Equation (1).

In order to measure the intensity of the touch, the control unit 50 opens one end (A terminal) of the first electrode and connects the ground to the other end (C terminal) of the first electrode. At this time, an electric signal formed at the other end (D terminal) of the second electrode can be expressed as the following Equation (2).

Since the resistance value of the sense resistor 12 described as RS _k is changed according to the intensity of the touch, the measurement module 52 can measure the intensity of the applied touch using the electric signal of Equation (2).

Meanwhile, FIG. 5 shows a control structure of a control section that can be applied to the first embodiment of the smart switch of the present invention. The controller 50 controls the opening and closing of the switches SW and SW _{f p} of the switch 5 in order to measure the intensity of the touch position and touch.

That is, when the position location of the touch, the controller 50 sets the switch SW to OFF and setting the _{f p} SW switch to ON. At the time of intensity measurements of the touch, the controller 50 sets the switch SW _f to ON and sets the switch SW _p to OFF.

SECOND EXAMPLE

6 shows a second embodiment of the smart switch of the present invention. 6, a second embodiment of the smart switch 100 of the present invention includes a sensing resistor 12, intermediate resistors 16 and 18, electrodes 20 and 22, films 24 and 26, As shown in FIG.

The electrodes 20 and 22, the films 24 and 26, and the sense resistor 12 may have the same configuration as that of the first embodiment. However, the second embodiment is different from the first embodiment in that the intermediate resistors 16 and 18 are composed of two types. This difference is to improve the accuracy of the measurement of the strength of the touch.

In the second embodiment shown in Fig. 6, the sense resistor 12 is a device in which a change in resistance value can be induced according to a touch, and a plurality of the sense resistor 12 are mounted. The sense resistor 12 is disposed between the first electrode 20 and the second electrode 22.

The intermediate resistor is disposed between the plurality of sense resistors 12 and may be composed of a plurality of first intermediate resistors 16 and a plurality of second intermediate resistors 18. [ The first intermediate resistor 16 is disposed on the first electrode 20 to provide a resistance value to the first electrode 20 and the second intermediate resistor 18 is disposed on the second electrode 22, Lt; RTI ID = 0.0 &gt; 22 &lt; / RTI &gt;

Preferably, a plurality of first intermediate resistors 16 are provided, each of which has a resistance value of R. [ In addition, N second intermediate resistors 18 are provided, and each of them has a resistance value of R. [

In the second embodiment of the smart switch 100 having the above-described structure, a method of measuring the position of the touch and the intensity of the touch will be described.

FIG. 7 illustrates a second embodiment of the smart switch of the present invention. 7, the sense resistor 12 is modelable as a variable resistor, the first intermediate resistor 16 is modelable as a resistor disposed on the first electrode 20, and the second intermediate resistor 18 May be modeled as a resistor disposed on the second electrode 22. The resistance value of the variable resistor is changed according to the touch of the sense resistor 12, and the sense resistor 12 of the non-touch portion has a very large resistance value (over 100 k?).

The control unit 50 applies an input signal V _in to one end (terminal B) of the second electrode to measure a touch, and thus the electric signal formed on the tactile sensor 10 is detected by the measurement module 52 .

Here, it is assumed that a touch is applied to the position of the sense resistor 12 described as RS _k , and the position and intensity of the touch are measured.

In order to measure the position of the touch, the controller 50 connects the ground to the other end (D terminal) of the second electrode, and opens the other end (C terminal) of the first electrode. At this time, an electric signal formed at one end (A terminal) of the first electrode can be expressed as Equation (3).

Since the resistance value of the sense resistor 12 is a preset value, the measurement module 52 can measure the position where the touch is applied using the electric signal of Equation (3).

In addition, in order to measure the intensity of the touch, the measurement module 52 senses the first electric signal and the second electric signal, and the controller 50 outputs a differential signal related to the difference between the first electric signal and the second electric signal And this difference signal is used for measuring the strength of the touch.

In order to form the first electrical signal on the tactile sensor, the control unit 50 connects the other end (C terminal) of the first electrode to the ground, and opens one end (A terminal) of the first electrode. At this time, the first electrical signal formed at the other end (D terminal) of the second electrode can be expressed as Equation (4).

In order to form the second electrical signal on the tactile sensor, the control unit 50 connects the other end (C terminal) of the first electrode to the ground and the other end (D terminal) of the second electrode. At this time, the second electrical signal formed at one end (A terminal) of the first electrode can be expressed as Equation (5).

The measurement module 52 senses the first electrical signal of Equation (4) and the second electrical signal of Equation (5). The controller 50 generates a difference signal by using the difference between the first electrical signal and the second electrical signal, and each of the plurality of first intermediate resistors 16 and each of the plurality of second intermediate resistors 18 is R The difference signal is expressed by the following equation (6). &Quot; (6) &quot;

The measurement module 52 can measure the intensity of the touch using the difference signal of Equation (6). Since the differential signal of Equation (6) is constructed independently of the touch position measurement, the second embodiment can measure the intensity more precisely than the first embodiment.

Meanwhile, FIG. 8 shows a control structure of a control section that can be applied to the second embodiment of the smart switch of the present invention. The controller 50 controls the opening and closing of the switches SW and SW _{f p} of the switch 8 in order to measure the intensity of the touch position and touch.

That is, when the position location of the touch, the controller 50 sets the switch SW to OFF and setting the _{f p} SW switch to ON. At the time of intensity measurements of the touch, the controller 50 sets the switch SW _f to ON and sets the switch SW _p to OFF.

The controller 50 is able to control the switch SW and SW _{f p} switch using one of the selection signal (S) so that with a NOT gate 62 and the buffer 64 at the same time.

Third Example

9 shows a third embodiment of the smart switch of the present invention. 9, a tactile sensor 10 and a light emitting element 30 are provided on a substrate 40, and an actuator (dome key) 42 for generating power is provided on the tactile sensor 10, (46).

9, the smart switch 100 of the present invention does not need to be implemented by combining the tactile sensor 10 and the light emitting element 30, and the tactile sensor 10 and the light emitting element 30 are separately provided May be provided.

When the switch upper plate 48 is pressed or released through the touch, an electric signal corresponding to the position or intensity of the touch is formed on the tactile sensor 10, and the measurement module 52 measures the position and intensity of the touch using the electric signal. Can be measured. The control module 54 controls the output of the light emitting device 30 and the light emitted from the light emitting device 50 is reflected to the outside through the reflection plate 32.

Likewise, it is also possible to control the output of the light emitting element 30 by turning the switch top plate 48 clockwise or counterclockwise.

Since the present invention includes the reflection plate 32, it is not necessarily required to have a structure in which the tactile sensor 10 and the light emitting device 30 are combined.

<Smart Switch Control Method>

Hereinafter, a control method of the smart switch to be proposed by the present invention will be described in detail with reference to FIG. 10 is a flowchart showing an example of a control method of the smart switch according to the present invention.

Referring to FIG. 10, when an external touch is applied to the tactile sensor 10 (S10), an electric signal corresponding to the position of the touch and the intensity of the touch is formed on the tactile sensor 10 (S20). The control unit 50 applies an input signal to one end (terminal B) of the second electrode 22 of the tactile sensor 10, and an electric signal is formed according to the applied input signal. The control unit 50 can obtain a desired electric signal while appropriately adjusting one end (A terminal) and the other end (C terminal) of the first electrode 20 and the other end (D terminal) of the second electrode.

Then, the measurement module 52 of the control unit 50 measures the position of the touch and the intensity of the touch using the electric signal formed in the tactile sensor 10 (S30). The above-described equations (1) and (3) are used for the measurement of the position of the touch, and the equations (2) and (6) are used for the measurement of the strength of the touch.

Then, the control module 54 of the control unit 50 controls the output of the light emitted from the light emitting element 30 according to the measurement result (S40). Accordingly, the intensity of the light emitted from the light emitting device 30, the color of light, the light emission pattern of the light, and the like are changed variously according to the touch, and the user can effectively provide emotion depending on the touch.

The present invention can also be embodied as computer-readable codes on a computer-readable recording medium. A computer-readable recording medium includes all kinds of recording apparatuses in which data that can be read by a computer system is stored. Examples of the computer-readable recording medium include a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like, and may be implemented in the form of a carrier wave (for example, transmission via the Internet) . The computer readable recording medium may also be distributed over a networked computer system so that computer readable code can be stored and executed in a distributed manner. In addition, functional programs, codes, and code segments for implementing the present invention can be easily inferred by programmers of the technical field to which the present invention belongs.

It should be understood that the above-described apparatus and method are not limited to the configuration and method of the embodiments described above, but the embodiments may be modified so that all or some of the embodiments are selectively combined .

10: Tactile sensor
12: Sense resistor
14: Intermediate resistor
16: first intermediate resistance
18: Second intermediate resistor
20: first electrode
22: second electrode
24: First film
26: Second film
30: Light emitting element
50:
100: Smart Switch

Claims (10)

A tactile sensor in which an electric signal corresponding to a position of the touch and an intensity of the touch is formed when a predetermined touch is applied;
A luminous element for illuminating light; And
And a control unit for measuring the position of the touch and the intensity of the touch by using an electric signal formed on the tactile sensor and controlling the output of light emitted from the light emitting device according to the measurement result,
The tactile sensor includes: a first electrode including a plurality of first intermediate resistors;
A second electrode spaced from the first electrode and including a plurality of second intermediate resistors; And
And a plurality of sense resistors formed at a lower portion of the first electrode and at an upper portion of the second electrode, wherein a resistance value change is induced according to the touch;
Wherein the plurality of sense resistors are formed between the first intermediate resistor and the second intermediate resistor, the resistance value of the first sense resistor being at least part of the plurality of sense resistors is changed by the touch, The electric signal is formed corresponding to the change of the resistance value of the electric signal.
Wherein the controller applies an input signal to one end of the second electrode,
Generating a difference signal by using the first and second electric signals formed on the first electrode or the second electrode by the applied input signal and measuring the intensity of the touch using the difference signal, ,
Wherein the first electrode is connected to the ground and the first electrode is open at one end, the first electrical signal is formed at the other end of the second electrode,
Wherein the second electrode is formed at one end of the first electrode when the other end of the first electrode is connected to the ground and the other end of the second electrode is opened. One smart switch. The method according to claim 1,
The light-
Wherein the light emitting device is a light emitting diode or an organic light emitting diode. The method according to claim 1,
Wherein the plurality of first intermediate resistors provide a resistance value to the first electrode and the plurality of second intermediate resistors provide a resistance value to the second electrode. Smart switch. The method according to claim 1,
Wherein the first electrical signal is determined according to the following equation.
Equation

In the above equation,

Is the first electrical signal,

Is the input signal,

Is a resistance value between one end of the second electrode and the position where the touch is applied,

Is a resistance value between a position where the touch is applied and the other end of the first electrode,

Is a resistance value of the sensing resistor at the position where the touch is applied. The method according to claim 1,
Wherein the second electric signal is determined according to the following equation.
Equation

In the above equation,

Is the first electrical signal,

Is the input signal,

Is a resistance value between one end of the second electrode and the position where the touch is applied,

Is a resistance value between a position where the touch is applied and the other end of the first electrode,

Is a resistance value of the sensing resistor at the position where the touch is applied. The method according to claim 4 or 5,
The resistance value of each of the plurality of first intermediate resistors

, And the resistance value of each of the plurality of second intermediate resistors is

Lt;
The number of the plurality of first intermediate resistors

, And the number of the plurality of second intermediate resistors

Lt;
The difference signal

Is determined according to the following equation: &quot; (1) &quot;
Equation

5. The method of claim 4,
When a plurality of touches are applied,
Wherein the control unit does not measure the position of the touch and the strength of the touch. The method according to claim 1,
Wherein the output of the light controlled by the control unit comprises:
Wherein the tactile sensor is at least one of light intensity, light color, and light emission pattern. A predetermined touch is applied to the tactile sensor;
Forming an electric signal corresponding to a position of the touch and an intensity of the touch on the tactile sensor;
Measuring a position of the touch and an intensity of the touch using an electric signal formed on the tactile sensor; And
And controlling the output of light emitted from a luminous element according to the measurement result,
The tactile sensor comprises:
A first electrode including a plurality of first intermediate resistors;
A second electrode spaced from the first electrode and including a plurality of second intermediate resistors; And
And a plurality of sense resistors formed at a lower portion of the first electrode and at an upper portion of the second electrode, wherein a resistance value change is induced according to the touch;
Wherein the plurality of sense resistors are formed between the first intermediate resistor and the second intermediate resistor,
The resistance value of the first sensing resistor being at least part of the plurality of sensing resistors is changed by the touch, the electrical signal is formed corresponding to a change in resistance value of the first sensing resistor,
The step of measuring the position of the touch and the intensity of the touch
Wherein the controller applies an input signal to one end of the second electrode,
A difference signal is generated using the first electric signal and the second electric signal formed on the first electrode or the second electrode by the applied input signal and the intensity of the touch is measured using the difference signal That is,
Wherein the first electrode is connected to the ground and the first electrode is open at one end, the first electrical signal is formed at the other end of the second electrode,
Wherein the second electrode is formed at one end of the first electrode when the other end of the first electrode is connected to the ground and the other end of the second electrode is opened. Control method of one smart switch. A recording medium on which a program tangibly embodying instructions executable by a digital processing apparatus to perform a method of controlling a smart switch,
The control method of the smart switch includes:
A predetermined touch is applied to the tactile sensor;
Forming an electric signal corresponding to a position of the touch and an intensity of the touch on the tactile sensor;
Measuring a position of the touch and an intensity of the touch using an electric signal formed on the tactile sensor; And
And controlling the output of light emitted from a luminous element according to the measurement result,
The tactile sensor comprises:
A first electrode including a plurality of first intermediate resistors;
A second electrode spaced from the first electrode and including a plurality of second intermediate resistors; And
And a plurality of sense resistors formed at a lower portion of the first electrode and at an upper portion of the second electrode, wherein a resistance value change is induced according to the touch;
Wherein the plurality of sense resistors are formed between the first intermediate resistor and the second intermediate resistor,
The resistance value of the first sensing resistor being at least part of the plurality of sensing resistors is changed by the touch, the electrical signal is formed corresponding to a change in resistance value of the first sensing resistor,
The step of measuring the position of the touch and the intensity of the touch
Wherein the controller applies an input signal to one end of the second electrode,
A difference signal is generated using the first electric signal and the second electric signal formed on the first electrode or the second electrode by the applied input signal and the intensity of the touch is measured using the difference signal That is,
Wherein the first electrode is connected to the ground and the first electrode is open at one end, the first electrical signal is formed at the other end of the second electrode,
Wherein the second electrode is formed at one end of the first electrode when the other end of the first electrode is connected to the ground and the other end of the second electrode is opened.

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